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Reverse Relation
Raw
reverseRelationTest_index.html
<!DOCTYPE html>
<head>
<script src="js/lib/require.js" data-main="js/Config"></script>
</head>
<body>
</body>
</html>
Raw
reverseRelationTest_js_Config.js
requirejs.config({
deps:["Main"],
paths:{
backbone:"lib/backbone",
"backbone.associations":"lib/backbone-associations",
jquery:"lib/jquery",
underscore:"lib/lodash"
},
shim:{
backbone:{
exports: "Backbone",
deps:["underscore", "jquery"]
},
'backbone.associations': {
deps:["backbone"]
},
}
});
Raw
reverseRelationTest_js_House.js
/**
* Created by matt on 10/10/13.
*/
define([
"backbone.associations",
"Person"
], function(Associations, Person){
var House = Backbone.AssociatedModel.extend({
relations:[{
key:"person",
type:Backbone.One,
relatedModel: function(){ return Person;}
}]
});
return House;
})
Raw
reverseRelationTest_js_lib_backbone-associations.js
//
// Backbone-associations.js 0.5.2
//
// (c) 2013 Dhruva Ray, Jaynti Kanani, Persistent Systems Ltd.
// Backbone-associations may be freely distributed under the MIT license.
// For all details and documentation:
// https://github.com/dhruvaray/backbone-associations/
//
// Initial Setup
// --------------
(function () {
"use strict";
// Save a reference to the global object (`window` in the browser, `exports`
// on the server).
var root = this;
// The top-level namespace. All public Backbone classes and modules will be attached to this.
// Exported for the browser and CommonJS.
var _, Backbone, BackboneModel, BackboneCollection, ModelProto,
CollectionProto, defaultEvents, AssociatedModel, pathChecker,
collectionEvents;
if (typeof window === 'undefined') {
_ = require('underscore');
Backbone = require('backbone');
if (typeof exports !== 'undefined') {
exports = module.exports = Backbone;
}
} else {
_ = root._;
Backbone = root.Backbone;
}
// Create local reference `Model` prototype.
BackboneModel = Backbone.Model;
BackboneCollection = Backbone.Collection;
ModelProto = BackboneModel.prototype;
CollectionProto = BackboneCollection.prototype;
pathChecker = /[\.\[\]]+/g;
// Built-in Backbone `events`.
defaultEvents = ["change", "add", "remove", "reset", "sort", "destroy"];
collectionEvents = ["reset", "sort"];
Backbone.Associations = {
VERSION:"0.5.2"
};
// Backbone.AssociatedModel
// --------------
//Add `Many` and `One` relations to Backbone Object.
Backbone.Associations.Many = Backbone.Many = "Many";
Backbone.Associations.One = Backbone.One = "One";
Backbone.Associations.Self = Backbone.Self = "Self";
// Define `AssociatedModel` (Extends Backbone.Model).
AssociatedModel = Backbone.AssociatedModel = Backbone.Associations.AssociatedModel = BackboneModel.extend({
// Define relations with Associated Model.
relations:undefined,
// Define `Model` property which can keep track of already fired `events`,
// and prevent redundant event to be triggered in case of cyclic model graphs.
_proxyCalls:undefined,
// Get the value of an attribute.
get:function (attr) {
var obj = ModelProto.get.call(this, attr);
return obj ? obj : this._getAttr.apply(this, arguments);
},
// Set a hash of model attributes on the Backbone Model.
set:function (key, value, options) {
var attributes, result;
// Duplicate backbone's behavior to allow separate key/value parameters,
// instead of a single 'attributes' object.
if (_.isObject(key) || key == null) {
attributes = key;
options = value;
} else {
attributes = {};
attributes[key] = value;
}
result = this._set(attributes, options);
// Trigger events which have been blocked until the entire object graph is updated.
this._processPendingEvents();
return result;
},
// Works with an attribute hash and options + fully qualified paths
_set:function (attributes, options) {
var attr, modelMap, modelId, obj, result = this;
if (!attributes) return this;
for (attr in attributes) {
//Create a map for each unique object whose attributes we want to set
modelMap || (modelMap = {});
if (attr.match(pathChecker)) {
var pathTokens = getPathArray(attr), initials = _.initial(pathTokens),
last = pathTokens[pathTokens.length - 1],
parentModel = this.get(initials);
if (parentModel instanceof AssociatedModel) {
obj = modelMap[parentModel.cid] || (modelMap[parentModel.cid] = {'model':parentModel, 'data':{}});
obj.data[last] = attributes[attr];
}
} else {
obj = modelMap[this.cid] || (modelMap[this.cid] = {'model':this, 'data':{}});
obj.data[attr] = attributes[attr];
}
}
if (modelMap) {
for (modelId in modelMap) {
obj = modelMap[modelId];
this._setAttr.call(obj.model, obj.data, options) || (result = false);
}
} else {
result = this._setAttr.call(this, attributes, options);
}
return result;
},
// Set a hash of model attributes on the object,
// fire Backbone `event` with options.
// It maintains relations between models during the set operation.
// It also bubbles up child events to the parent.
_setAttr:function (attributes, options) {
var attr;
// Extract attributes and options.
options || (options = {});
if (options.unset) for (attr in attributes) attributes[attr] = void 0;
this.parents = this.parents || [];
if (this.relations) {
// Iterate over `this.relations` and `set` model and collection values
// if `relations` are available.
_.each(this.relations, function (relation) {
var relationKey = relation.key,
relatedModel = relation.relatedModel,
collectionType = relation.collectionType,
map = relation.map,
currVal = this.attributes[relationKey],
idKey = currVal && currVal.idAttribute,
val, relationOptions, data, relationValue, newCtx = false;
// Call function if relatedModel is implemented as a function
if (relatedModel && !(relatedModel.prototype instanceof BackboneModel))
relatedModel = _.isFunction(relatedModel) ?
relatedModel.call(this, relation, attributes) :
relatedModel;
// Get class if relation and map is stored as a string.
if (relatedModel && _.isString(relatedModel)) {
relatedModel = (relatedModel === Backbone.Self) ? this.constructor : map2Scope(relatedModel);
}
collectionType && _.isString(collectionType) && (collectionType = map2Scope(collectionType));
map && _.isString(map) && (map = map2Scope(map));
// Merge in `options` specific to this relation.
relationOptions = relation.options ? _.extend({}, relation.options, options) : options;
if ((!relatedModel) && (!collectionType))
throw new Error('specify either a relatedModel or collectionType');
if (attributes[relationKey]) {
// Get value of attribute with relation key in `val`.
val = _.result(attributes, relationKey);
// Map `val` if a transformation function is provided.
val = map ? map.call(this, val, collectionType ? collectionType : relatedModel) : val;
// If `relation.type` is `Backbone.Many`,
// Create `Backbone.Collection` with passed data and perform Backbone `set`.
if (relation.type === Backbone.Many) {
// `collectionType` of defined `relation` should be instance of `Backbone.Collection`.
if (collectionType && !collectionType.prototype instanceof BackboneCollection) {
throw new Error('collectionType must inherit from Backbone.Collection');
}
if (val instanceof BackboneCollection && !currVal) {
data = val;
// Set current context as new context
newCtx = true;
} else {
// Create a new collection
if (!currVal) {
data = collectionType ? new collectionType() : this._createCollection(relatedModel);
} else {
data = currVal;
// Setting this flag will prevent events from firing immediately. That way clients
// will not get events until the entire object graph is updated.
data._deferEvents = true;
}
// Use Backbone.Collection's `reset` or smart `set` method
data[relationOptions.reset ? 'reset' : 'set'](val instanceof BackboneCollection
? val.models
: val, relationOptions);
}
} else if (relation.type === Backbone.One) {
if (!relatedModel)
throw new Error('specify a relatedModel for Backbone.One type');
if (!(relatedModel.prototype instanceof Backbone.AssociatedModel))
throw new Error('specify an AssociatedModel for Backbone.One type');
if (val instanceof AssociatedModel) {
data = val;
// Compute whether the context is a new one after this assignment.
newCtx = (currVal !== val);
} else {
//Create a new model
if (!currVal) {
data = new relatedModel(val, relationOptions);
} else {
//Is the passed in data for the same key?
if (currVal && val[idKey] && currVal.get(idKey) === val[idKey]) {
// Setting this flag will prevent events from firing immediately. That way clients
// will not get events until the entire object graph is updated.
currVal._deferEvents = true;
// Perform the traditional `set` operation
currVal._set(val, relationOptions);
data = currVal;
} else {
data = new relatedModel(val, relationOptions);
}
}
}
} else {
throw new Error('type attribute must be specified and have the values Backbone.One or Backbone.Many');
}
attributes[relationKey] = data;
relationValue = data;
// Add proxy events to respective parents.
// Only add callback if not defined or new Ctx has been identified.
if (newCtx || (relationValue && !relationValue._proxyCallback)) {
relationValue._proxyCallback = function () {
return this._bubbleEvent.call(this, relationKey, relationValue, arguments);
};
relationValue.on("all", relationValue._proxyCallback, this);
}
}
//Distinguish between the value of undefined versus a set no-op
if (attributes.hasOwnProperty(relationKey)) {
//Maintain reverse pointers - a.k.a parents
var updated = attributes[relationKey];
var original = this.attributes[relationKey];
if (updated) {
updated.parents = updated.parents || [];
(_.indexOf(updated.parents, this) == -1) && updated.parents.push(this);
} else if (original && original.parents.length > 0) { // New value is undefined
original.parents = _.difference(original.parents, [this]);
// Don't bubble to this parent anymore
original._proxyCallback && original.off("all", original._proxyCallback, this);
}
}
}, this);
}
// Return results for `BackboneModel.set`.
return ModelProto.set.call(this, attributes, options);
},
// Bubble-up event to `parent` Model
_bubbleEvent:function (relationKey, relationValue, eventArguments) {
var args = eventArguments,
opt = args[0].split(":"),
eventType = opt[0],
catch_all = args[0] == "nested-change",
eventObject = args[1],
colObject = args[2],
indexEventObject = -1,
_proxyCalls = relationValue._proxyCalls,
cargs,
eventPath,
basecolEventPath,
isDefaultEvent = _.indexOf(defaultEvents, eventType) !== -1;
//Short circuit the listen in to the nested-graph event
if (catch_all) return;
// Change the event name to a fully qualified path.
_.size(opt) > 1 && (eventPath = opt[1]);
if (_.indexOf(collectionEvents, eventType) !== -1) {
colObject = eventObject;
}
// Find the specific object in the collection which has changed.
if (relationValue instanceof BackboneCollection && isDefaultEvent && eventObject) {
var pathTokens = getPathArray(eventPath),
initialTokens = _.initial(pathTokens), colModel;
colModel = relationValue.find(function (model) {
if (eventObject === model) return true;
if (!model) return false;
var changedModel = model.get(initialTokens);
if ((changedModel instanceof AssociatedModel || changedModel instanceof BackboneCollection)
&& eventObject === changedModel)
return true;
changedModel = model.get(pathTokens);
if ((changedModel instanceof AssociatedModel || changedModel instanceof BackboneCollection)
&& eventObject === changedModel)
return true;
if (changedModel instanceof BackboneCollection && colObject
&& colObject === changedModel)
return true;
});
colModel && (indexEventObject = relationValue.indexOf(colModel));
}
// Manipulate `eventPath`.
eventPath = relationKey + ((indexEventObject !== -1 && (eventType === "change" || eventPath)) ?
"[" + indexEventObject + "]" : "") + (eventPath ? "." + eventPath : "");
// Short circuit collection * events
if (/\[\*\]/g.test(eventPath)) return this;
basecolEventPath = eventPath.replace(/\[\d+\]/g, '[*]');
cargs = [];
cargs.push.apply(cargs, args);
cargs[0] = eventType + ":" + eventPath;
// If event has been already triggered as result of same source `eventPath`,
// no need to re-trigger event to prevent cycle.
_proxyCalls = relationValue._proxyCalls = (_proxyCalls || {});
if (this._isEventAvailable.call(this, _proxyCalls, eventPath)) return this;
// Add `eventPath` in `_proxyCalls` to keep track of already triggered `event`.
_proxyCalls[eventPath] = true;
// Set up previous attributes correctly.
if ("change" === eventType) {
this._previousAttributes[relationKey] = relationValue._previousAttributes;
this.changed[relationKey] = relationValue;
}
// Bubble up event to parent `model` with new changed arguments.
this.trigger.apply(this, cargs);
//Only fire for change. Not change:attribute
if ("change" === eventType && this.get(eventPath) != args[2]) {
var ncargs = ["nested-change", eventPath, args[1]];
args[2] && ncargs.push(args[2]); //args[2] will be options if present
this.trigger.apply(this, ncargs);
}
// Remove `eventPath` from `_proxyCalls`,
// if `eventPath` and `_proxyCalls` are available,
// which allow event to be triggered on for next operation of `set`.
if (_proxyCalls && eventPath) delete _proxyCalls[eventPath];
// Create a collection modified event with wild-card
if (eventPath !== basecolEventPath) {
cargs[0] = eventType + ":" + basecolEventPath;
this.trigger.apply(this, cargs);
}
return this;
},
// Has event been fired from this source. Used to prevent event recursion in cyclic graphs
_isEventAvailable:function (_proxyCalls, path) {
return _.find(_proxyCalls, function (value, eventKey) {
return path.indexOf(eventKey, path.length - eventKey.length) !== -1;
});
},
// Returns New `collection` of type `relation.relatedModel`.
_createCollection:function (type) {
var collection, relatedModel = type;
_.isString(relatedModel) && (relatedModel = map2Scope(relatedModel));
// Creates new `Backbone.Collection` and defines model class.
if (relatedModel && relatedModel.prototype instanceof AssociatedModel) {
collection = new BackboneCollection();
collection.model = relatedModel;
} else {
throw new Error('type must inherit from Backbone.AssociatedModel');
}
return collection;
},
// Process all pending events after the entire object graph has been updated
_processPendingEvents:function () {
if (!this._processedEvents) {
this._processedEvents = true;
this._deferEvents = false;
// Trigger all pending events
_.each(this._pendingEvents, function (e) {
e.c.trigger.apply(e.c, e.a);
});
this._pendingEvents = [];
// Traverse down the object graph and call process pending events on sub-trees
_.each(this.relations, function (relation) {
var val = this.attributes[relation.key];
val && val._processPendingEvents();
}, this);
delete this._processedEvents;
}
},
// Override trigger to defer events in the object graph.
trigger:function (name) {
// Defer event processing
if (this._deferEvents) {
this._pendingEvents = this._pendingEvents || [];
// Maintain a queue of pending events to trigger after the entire object graph is updated.
this._pendingEvents.push({c:this, a:arguments});
} else {
ModelProto.trigger.apply(this, arguments);
}
},
// The JSON representation of the model.
toJSON:function (options) {
var json = {}, aJson;
json[this.idAttribute] = this.id;
if (!this.visited) {
this.visited = true;
// Get json representation from `BackboneModel.toJSON`.
json = ModelProto.toJSON.apply(this, arguments);
// If `this.relations` is defined, iterate through each `relation`
// and added it's json representation to parents' json representation.
if (this.relations) {
_.each(this.relations, function (relation) {
var attr = this.attributes[relation.key];
if (attr) {
aJson = attr.toJSON(options);
json[relation.key] = _.isArray(aJson) ? _.compact(aJson) : aJson;
}
}, this);
}
delete this.visited;
}
return json;
},
// Create a new model with identical attributes to this one.
clone:function () {
return new this.constructor(this.toJSON());
},
// Call this if you want to set an `AssociatedModel` to a falsy value like undefined/null directly.
// Not calling this will leak memory and have wrong parents.
// See test case "parent relations"
cleanup:function () {
_.each(this.relations, function (relation) {
var val = this.attributes[relation.key];
val && (val.parents = _.difference(val.parents, [this]));
}, this);
this.off();
},
// Navigate the path to the leaf object in the path to query for the attribute value
_getAttr:function (path) {
var result = this,
//Tokenize the path
attrs = getPathArray(path),
key,
i;
if (_.size(attrs) < 1) return;
for (i = 0; i < attrs.length; i++) {
key = attrs[i];
if (!result) break;
//Navigate the path to get to the result
result = result instanceof BackboneCollection
? (isNaN(key) ? undefined : result.at(key))
: result.attributes[key];
}
return result;
}
});
var delimiters = /[^\.\[\]]+/g;
// Tokenize the fully qualified event path
var getPathArray = function (path) {
if (path === '') return [''];
return _.isString(path) ? (path.match(delimiters)) : path || [];
};
var map2Scope = function (path) {
return _.reduce(path.split('.'), function (memo, elem) {
return memo[elem]
}, root);
};
//Infer the relation from the collection's parents and find the appropriate map for the passed in `models`
var map2models = function (parents, target, models) {
var relation, surrogate;
//Iterate over collection's parents
_.find(parents, function (parent) {
//Iterate over relations
relation = _.find(parent.relations, function (rel) {
return parent.get(rel.key) === target;
}, this);
if (relation) {
surrogate = parent;//surrogate for transformation
return true;//break;
}
}, this);
//If we found a relation and it has a mapping function
if (relation && relation.map) {
return relation.map.call(surrogate, models, target);
}
return models;
};
var proxies = {};
// Proxy Backbone collection methods
_.each(['set', 'remove', 'reset'], function (method) {
proxies[method] = BackboneCollection.prototype[method];
CollectionProto[method] = function (models, options) {
//Short-circuit if this collection doesn't hold `AssociatedModels`
if (this.model.prototype instanceof AssociatedModel && this.parents) {
//Find a map function if available and perform a transformation
arguments[0] = map2models(this.parents, this, models);
}
return proxies[method].apply(this, arguments);
}
});
// Override trigger to defer events in the object graph.
proxies['trigger'] = CollectionProto['trigger'];
CollectionProto['trigger'] = function (name) {
if (this._deferEvents) {
this._pendingEvents = this._pendingEvents || [];
// Maintain a queue of pending events to trigger after the entire object graph is updated.
this._pendingEvents.push({c:this, a:arguments});
} else {
proxies['trigger'].apply(this, arguments);
}
};
// Attach process pending event functionality on collections as well. Re-use from `AssociatedModel`
CollectionProto._processPendingEvents = AssociatedModel.prototype._processPendingEvents;
}).call(this);
Raw
reverseRelationTest_js_lib_backbone.js
// Backbone.js 1.0.0
// (c) 2010-2013 Jeremy Ashkenas, DocumentCloud Inc.
// Backbone may be freely distributed under the MIT license.
// For all details and documentation:
// http://backbonejs.org
(function(){
// Initial Setup
// -------------
// Save a reference to the global object (`window` in the browser, `exports`
// on the server).
var root = this;
// Save the previous value of the `Backbone` variable, so that it can be
// restored later on, if `noConflict` is used.
var previousBackbone = root.Backbone;
// Create local references to array methods we'll want to use later.
var array = [];
var push = array.push;
var slice = array.slice;
var splice = array.splice;
// The top-level namespace. All public Backbone classes and modules will
// be attached to this. Exported for both the browser and the server.
var Backbone;
if (typeof exports !== 'undefined') {
Backbone = exports;
} else {
Backbone = root.Backbone = {};
}
// Current version of the library. Keep in sync with `package.json`.
Backbone.VERSION = '1.0.0';
// Require Underscore, if we're on the server, and it's not already present.
var _ = root._;
if (!_ && (typeof require !== 'undefined')) _ = require('underscore');
// For Backbone's purposes, jQuery, Zepto, Ender, or My Library (kidding) owns
// the `$` variable.
Backbone.$ = root.jQuery || root.Zepto || root.ender || root.$;
// Runs Backbone.js in *noConflict* mode, returning the `Backbone` variable
// to its previous owner. Returns a reference to this Backbone object.
Backbone.noConflict = function() {
root.Backbone = previousBackbone;
return this;
};
// Turn on `emulateHTTP` to support legacy HTTP servers. Setting this option
// will fake `"PUT"` and `"DELETE"` requests via the `_method` parameter and
// set a `X-Http-Method-Override` header.
Backbone.emulateHTTP = false;
// Turn on `emulateJSON` to support legacy servers that can't deal with direct
// `application/json` requests ... will encode the body as
// `application/x-www-form-urlencoded` instead and will send the model in a
// form param named `model`.
Backbone.emulateJSON = false;
// Backbone.Events
// ---------------
// A module that can be mixed in to *any object* in order to provide it with
// custom events. You may bind with `on` or remove with `off` callback
// functions to an event; `trigger`-ing an event fires all callbacks in
// succession.
//
// var object = {};
// _.extend(object, Backbone.Events);
// object.on('expand', function(){ alert('expanded'); });
// object.trigger('expand');
//
var Events = Backbone.Events = {
// Bind an event to a `callback` function. Passing `"all"` will bind
// the callback to all events fired.
on: function(name, callback, context) {
if (!eventsApi(this, 'on', name, [callback, context]) || !callback) return this;
this._events || (this._events = {});
var events = this._events[name] || (this._events[name] = []);
events.push({callback: callback, context: context, ctx: context || this});
return this;
},
// Bind an event to only be triggered a single time. After the first time
// the callback is invoked, it will be removed.
once: function(name, callback, context) {
if (!eventsApi(this, 'once', name, [callback, context]) || !callback) return this;
var self = this;
var once = _.once(function() {
self.off(name, once);
callback.apply(this, arguments);
});
once._callback = callback;
return this.on(name, once, context);
},
// Remove one or many callbacks. If `context` is null, removes all
// callbacks with that function. If `callback` is null, removes all
// callbacks for the event. If `name` is null, removes all bound
// callbacks for all events.
off: function(name, callback, context) {
var retain, ev, events, names, i, l, j, k;
if (!this._events || !eventsApi(this, 'off', name, [callback, context])) return this;
if (!name && !callback && !context) {
this._events = {};
return this;
}
names = name ? [name] : _.keys(this._events);
for (i = 0, l = names.length; i < l; i++) {
name = names[i];
if (events = this._events[name]) {
this._events[name] = retain = [];
if (callback || context) {
for (j = 0, k = events.length; j < k; j++) {
ev = events[j];
if ((callback && callback !== ev.callback && callback !== ev.callback._callback) ||
(context && context !== ev.context)) {
retain.push(ev);
}
}
}
if (!retain.length) delete this._events[name];
}
}
return this;
},
// Trigger one or many events, firing all bound callbacks. Callbacks are
// passed the same arguments as `trigger` is, apart from the event name
// (unless you're listening on `"all"`, which will cause your callback to
// receive the true name of the event as the first argument).
trigger: function(name) {
if (!this._events) return this;
var args = slice.call(arguments, 1);
if (!eventsApi(this, 'trigger', name, args)) return this;
var events = this._events[name];
var allEvents = this._events.all;
if (events) triggerEvents(events, args);
if (allEvents) triggerEvents(allEvents, arguments);
return this;
},
// Tell this object to stop listening to either specific events ... or
// to every object it's currently listening to.
stopListening: function(obj, name, callback) {
var listeners = this._listeners;
if (!listeners) return this;
var deleteListener = !name && !callback;
if (typeof name === 'object') callback = this;
if (obj) (listeners = {})[obj._listenerId] = obj;
for (var id in listeners) {
listeners[id].off(name, callback, this);
if (deleteListener) delete this._listeners[id];
}
return this;
}
};
// Regular expression used to split event strings.
var eventSplitter = /\s+/;
// Implement fancy features of the Events API such as multiple event
// names `"change blur"` and jQuery-style event maps `{change: action}`
// in terms of the existing API.
var eventsApi = function(obj, action, name, rest) {
if (!name) return true;
// Handle event maps.
if (typeof name === 'object') {
for (var key in name) {
obj[action].apply(obj, [key, name[key]].concat(rest));
}
return false;
}
// Handle space separated event names.
if (eventSplitter.test(name)) {
var names = name.split(eventSplitter);
for (var i = 0, l = names.length; i < l; i++) {
obj[action].apply(obj, [names[i]].concat(rest));
}
return false;
}
return true;
};
// A difficult-to-believe, but optimized internal dispatch function for
// triggering events. Tries to keep the usual cases speedy (most internal
// Backbone events have 3 arguments).
var triggerEvents = function(events, args) {
var ev, i = -1, l = events.length, a1 = args[0], a2 = args[1], a3 = args[2];
switch (args.length) {
case 0: while (++i < l) (ev = events[i]).callback.call(ev.ctx); return;
case 1: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1); return;
case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2); return;
case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2, a3); return;
default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args);
}
};
var listenMethods = {listenTo: 'on', listenToOnce: 'once'};
// Inversion-of-control versions of `on` and `once`. Tell *this* object to
// listen to an event in another object ... keeping track of what it's
// listening to.
_.each(listenMethods, function(implementation, method) {
Events[method] = function(obj, name, callback) {
var listeners = this._listeners || (this._listeners = {});
var id = obj._listenerId || (obj._listenerId = _.uniqueId('l'));
listeners[id] = obj;
if (typeof name === 'object') callback = this;
obj[implementation](name, callback, this);
return this;
};
});
// Aliases for backwards compatibility.
Events.bind = Events.on;
Events.unbind = Events.off;
// Allow the `Backbone` object to serve as a global event bus, for folks who
// want global "pubsub" in a convenient place.
_.extend(Backbone, Events);
// Backbone.Model
// --------------
// Backbone **Models** are the basic data object in the framework --
// frequently representing a row in a table in a database on your server.
// A discrete chunk of data and a bunch of useful, related methods for
// performing computations and transformations on that data.
// Create a new model with the specified attributes. A client id (`cid`)
// is automatically generated and assigned for you.
var Model = Backbone.Model = function(attributes, options) {
var defaults;
var attrs = attributes || {};
options || (options = {});
this.cid = _.uniqueId('c');
this.attributes = {};
_.extend(this, _.pick(options, modelOptions));
if (options.parse) attrs = this.parse(attrs, options) || {};
if (defaults = _.result(this, 'defaults')) {
attrs = _.defaults({}, attrs, defaults);
}
this.set(attrs, options);
this.changed = {};
this.initialize.apply(this, arguments);
};
// A list of options to be attached directly to the model, if provided.
var modelOptions = ['url', 'urlRoot', 'collection'];
// Attach all inheritable methods to the Model prototype.
_.extend(Model.prototype, Events, {
// A hash of attributes whose current and previous value differ.
changed: null,
// The value returned during the last failed validation.
validationError: null,
// The default name for the JSON `id` attribute is `"id"`. MongoDB and
// CouchDB users may want to set this to `"_id"`.
idAttribute: 'id',
// Initialize is an empty function by default. Override it with your own
// initialization logic.
initialize: function(){},
// Return a copy of the model's `attributes` object.
toJSON: function(options) {
return _.clone(this.attributes);
},
// Proxy `Backbone.sync` by default -- but override this if you need
// custom syncing semantics for *this* particular model.
sync: function() {
return Backbone.sync.apply(this, arguments);
},
// Get the value of an attribute.
get: function(attr) {
return this.attributes[attr];
},
// Get the HTML-escaped value of an attribute.
escape: function(attr) {
return _.escape(this.get(attr));
},
// Returns `true` if the attribute contains a value that is not null
// or undefined.
has: function(attr) {
return this.get(attr) != null;
},
// Set a hash of model attributes on the object, firing `"change"`. This is
// the core primitive operation of a model, updating the data and notifying
// anyone who needs to know about the change in state. The heart of the beast.
set: function(key, val, options) {
var attr, attrs, unset, changes, silent, changing, prev, current;
if (key == null) return this;
// Handle both `"key", value` and `{key: value}` -style arguments.
if (typeof key === 'object') {
attrs = key;
options = val;
} else {
(attrs = {})[key] = val;
}
options || (options = {});
// Run validation.
if (!this._validate(attrs, options)) return false;
// Extract attributes and options.
unset = options.unset;
silent = options.silent;
changes = [];
changing = this._changing;
this._changing = true;
if (!changing) {
this._previousAttributes = _.clone(this.attributes);
this.changed = {};
}
current = this.attributes, prev = this._previousAttributes;
// Check for changes of `id`.
if (this.idAttribute in attrs) this.id = attrs[this.idAttribute];
// For each `set` attribute, update or delete the current value.
for (attr in attrs) {
val = attrs[attr];
if (!_.isEqual(current[attr], val)) changes.push(attr);
if (!_.isEqual(prev[attr], val)) {
this.changed[attr] = val;
} else {
delete this.changed[attr];
}
unset ? delete current[attr] : current[attr] = val;
}
// Trigger all relevant attribute changes.
if (!silent) {
if (changes.length) this._pending = true;
for (var i = 0, l = changes.length; i < l; i++) {
this.trigger('change:' + changes[i], this, current[changes[i]], options);
}
}
// You might be wondering why there's a `while` loop here. Changes can
// be recursively nested within `"change"` events.
if (changing) return this;
if (!silent) {
while (this._pending) {
this._pending = false;
this.trigger('change', this, options);
}
}
this._pending = false;
this._changing = false;
return this;
},
// Remove an attribute from the model, firing `"change"`. `unset` is a noop
// if the attribute doesn't exist.
unset: function(attr, options) {
return this.set(attr, void 0, _.extend({}, options, {unset: true}));
},
// Clear all attributes on the model, firing `"change"`.
clear: function(options) {
var attrs = {};
for (var key in this.attributes) attrs[key] = void 0;
return this.set(attrs, _.extend({}, options, {unset: true}));
},
// Determine if the model has changed since the last `"change"` event.
// If you specify an attribute name, determine if that attribute has changed.
hasChanged: function(attr) {
if (attr == null) return !_.isEmpty(this.changed);
return _.has(this.changed, attr);
},
// Return an object containing all the attributes that have changed, or
// false if there are no changed attributes. Useful for determining what
// parts of a view need to be updated and/or what attributes need to be
// persisted to the server. Unset attributes will be set to undefined.
// You can also pass an attributes object to diff against the model,
// determining if there *would be* a change.
changedAttributes: function(diff) {
if (!diff) return this.hasChanged() ? _.clone(this.changed) : false;
var val, changed = false;
var old = this._changing ? this._previousAttributes : this.attributes;
for (var attr in diff) {
if (_.isEqual(old[attr], (val = diff[attr]))) continue;
(changed || (changed = {}))[attr] = val;
}
return changed;
},
// Get the previous value of an attribute, recorded at the time the last
// `"change"` event was fired.
previous: function(attr) {
if (attr == null || !this._previousAttributes) return null;
return this._previousAttributes[attr];
},
// Get all of the attributes of the model at the time of the previous
// `"change"` event.
previousAttributes: function() {
return _.clone(this._previousAttributes);
},
// Fetch the model from the server. If the server's representation of the
// model differs from its current attributes, they will be overridden,
// triggering a `"change"` event.
fetch: function(options) {
options = options ? _.clone(options) : {};
if (options.parse === void 0) options.parse = true;
var model = this;
var success = options.success;
options.success = function(resp) {
if (!model.set(model.parse(resp, options), options)) return false;
if (success) success(model, resp, options);
model.trigger('sync', model, resp, options);
};
wrapError(this, options);
return this.sync('read', this, options);
},
// Set a hash of model attributes, and sync the model to the server.
// If the server returns an attributes hash that differs, the model's
// state will be `set` again.
save: function(key, val, options) {
var attrs, method, xhr, attributes = this.attributes;
// Handle both `"key", value` and `{key: value}` -style arguments.
if (key == null || typeof key === 'object') {
attrs = key;
options = val;
} else {
(attrs = {})[key] = val;
}
// If we're not waiting and attributes exist, save acts as `set(attr).save(null, opts)`.
if (attrs && (!options || !options.wait) && !this.set(attrs, options)) return false;
options = _.extend({validate: true}, options);
// Do not persist invalid models.
if (!this._validate(attrs, options)) return false;
// Set temporary attributes if `{wait: true}`.
if (attrs && options.wait) {
this.attributes = _.extend({}, attributes, attrs);
}
// After a successful server-side save, the client is (optionally)
// updated with the server-side state.
if (options.parse === void 0) options.parse = true;
var model = this;
var success = options.success;
options.success = function(resp) {
// Ensure attributes are restored during synchronous saves.
model.attributes = attributes;
var serverAttrs = model.parse(resp, options);
if (options.wait) serverAttrs = _.extend(attrs || {}, serverAttrs);
if (_.isObject(serverAttrs) && !model.set(serverAttrs, options)) {
return false;
}
if (success) success(model, resp, options);
model.trigger('sync', model, resp, options);
};
wrapError(this, options);
method = this.isNew() ? 'create' : (options.patch ? 'patch' : 'update');
if (method === 'patch') options.attrs = attrs;
xhr = this.sync(method, this, options);
// Restore attributes.
if (attrs && options.wait) this.attributes = attributes;
return xhr;
},
// Destroy this model on the server if it was already persisted.
// Optimistically removes the model from its collection, if it has one.
// If `wait: true` is passed, waits for the server to respond before removal.
destroy: function(options) {
options = options ? _.clone(options) : {};
var model = this;
var success = options.success;
var destroy = function() {
model.trigger('destroy', model, model.collection, options);
};
options.success = function(resp) {
if (options.wait || model.isNew()) destroy();
if (success) success(model, resp, options);
if (!model.isNew()) model.trigger('sync', model, resp, options);
};
if (this.isNew()) {
options.success();
return false;
}
wrapError(this, options);
var xhr = this.sync('delete', this, options);
if (!options.wait) destroy();
return xhr;
},
// Default URL for the model's representation on the server -- if you're
// using Backbone's restful methods, override this to change the endpoint
// that will be called.
url: function() {
var base = _.result(this, 'urlRoot') || _.result(this.collection, 'url') || urlError();
if (this.isNew()) return base;
return base + (base.charAt(base.length - 1) === '/' ? '' : '/') + encodeURIComponent(this.id);
},
// **parse** converts a response into the hash of attributes to be `set` on
// the model. The default implementation is just to pass the response along.
parse: function(resp, options) {
return resp;
},
// Create a new model with identical attributes to this one.
clone: function() {
return new this.constructor(this.attributes);
},
// A model is new if it has never been saved to the server, and lacks an id.
isNew: function() {
return this.id == null;
},
// Check if the model is currently in a valid state.
isValid: function(options) {
return this._validate({}, _.extend(options || {}, { validate: true }));
},
// Run validation against the next complete set of model attributes,
// returning `true` if all is well. Otherwise, fire an `"invalid"` event.
_validate: function(attrs, options) {
if (!options.validate || !this.validate) return true;
attrs = _.extend({}, this.attributes, attrs);
var error = this.validationError = this.validate(attrs, options) || null;
if (!error) return true;
this.trigger('invalid', this, error, _.extend(options || {}, {validationError: error}));
return false;
}
});
// Underscore methods that we want to implement on the Model.
var modelMethods = ['keys', 'values', 'pairs', 'invert', 'pick', 'omit'];
// Mix in each Underscore method as a proxy to `Model#attributes`.
_.each(modelMethods, function(method) {
Model.prototype[method] = function() {
var args = slice.call(arguments);
args.unshift(this.attributes);
return _[method].apply(_, args);
};
});
// Backbone.Collection
// -------------------
// If models tend to represent a single row of data, a Backbone Collection is
// more analagous to a table full of data ... or a small slice or page of that
// table, or a collection of rows that belong together for a particular reason
// -- all of the messages in this particular folder, all of the documents
// belonging to this particular author, and so on. Collections maintain
// indexes of their models, both in order, and for lookup by `id`.
// Create a new **Collection**, perhaps to contain a specific type of `model`.
// If a `comparator` is specified, the Collection will maintain
// its models in sort order, as they're added and removed.
var Collection = Backbone.Collection = function(models, options) {
options || (options = {});
if (options.url) this.url = options.url;
if (options.model) this.model = options.model;
if (options.comparator !== void 0) this.comparator = options.comparator;
this._reset();
this.initialize.apply(this, arguments);
if (models) this.reset(models, _.extend({silent: true}, options));
};
// Default options for `Collection#set`.
var setOptions = {add: true, remove: true, merge: true};
var addOptions = {add: true, merge: false, remove: false};
// Define the Collection's inheritable methods.
_.extend(Collection.prototype, Events, {
// The default model for a collection is just a **Backbone.Model**.
// This should be overridden in most cases.
model: Model,
// Initialize is an empty function by default. Override it with your own
// initialization logic.
initialize: function(){},
// The JSON representation of a Collection is an array of the
// models' attributes.
toJSON: function(options) {
return this.map(function(model){ return model.toJSON(options); });
},
// Proxy `Backbone.sync` by default.
sync: function() {
return Backbone.sync.apply(this, arguments);
},
// Add a model, or list of models to the set.
add: function(models, options) {
return this.set(models, _.defaults(options || {}, addOptions));
},
// Remove a model, or a list of models from the set.
remove: function(models, options) {
models = _.isArray(models) ? models.slice() : [models];
options || (options = {});
var i, l, index, model;
for (i = 0, l = models.length; i < l; i++) {
model = this.get(models[i]);
if (!model) continue;
delete this._byId[model.id];
delete this._byId[model.cid];
index = this.indexOf(model);
this.models.splice(index, 1);
this.length--;
if (!options.silent) {
options.index = index;
model.trigger('remove', model, this, options);
}
this._removeReference(model);
}
return this;
},
// Update a collection by `set`-ing a new list of models, adding new ones,
// removing models that are no longer present, and merging models that
// already exist in the collection, as necessary. Similar to **Model#set**,
// the core operation for updating the data contained by the collection.
set: function(models, options) {
options = _.defaults(options || {}, setOptions);
if (options.parse) models = this.parse(models, options);
if (!_.isArray(models)) models = models ? [models] : [];
var i, l, model, attrs, existing, sort;
var at = options.at;
var sortable = this.comparator && (at == null) && options.sort !== false;
var sortAttr = _.isString(this.comparator) ? this.comparator : null;
var toAdd = [], toRemove = [], modelMap = {};
// Turn bare objects into model references, and prevent invalid models
// from being added.
for (i = 0, l = models.length; i < l; i++) {
if (!(model = this._prepareModel(models[i], options))) continue;
// If a duplicate is found, prevent it from being added and
// optionally merge it into the existing model.
if (existing = this.get(model)) {
if (options.remove) modelMap[existing.cid] = true;
if (options.merge) {
existing.set(model.attributes, options);
if (sortable && !sort && existing.hasChanged(sortAttr)) sort = true;
}
// This is a new model, push it to the `toAdd` list.
} else if (options.add) {
toAdd.push(model);
// Listen to added models' events, and index models for lookup by
// `id` and by `cid`.
model.on('all', this._onModelEvent, this);
this._byId[model.cid] = model;
if (model.id != null) this._byId[model.id] = model;
}
}
// Remove nonexistent models if appropriate.
if (options.remove) {
for (i = 0, l = this.length; i < l; ++i) {
if (!modelMap[(model = this.models[i]).cid]) toRemove.push(model);
}
if (toRemove.length) this.remove(toRemove, options);
}
// See if sorting is needed, update `length` and splice in new models.
if (toAdd.length) {
if (sortable) sort = true;
this.length += toAdd.length;
if (at != null) {
splice.apply(this.models, [at, 0].concat(toAdd));
} else {
push.apply(this.models, toAdd);
}
}
// Silently sort the collection if appropriate.
if (sort) this.sort({silent: true});
if (options.silent) return this;
// Trigger `add` events.
for (i = 0, l = toAdd.length; i < l; i++) {
(model = toAdd[i]).trigger('add', model, this, options);
}
// Trigger `sort` if the collection was sorted.
if (sort) this.trigger('sort', this, options);
return this;
},
// When you have more items than you want to add or remove individually,
// you can reset the entire set with a new list of models, without firing
// any granular `add` or `remove` events. Fires `reset` when finished.
// Useful for bulk operations and optimizations.
reset: function(models, options) {
options || (options = {});
for (var i = 0, l = this.models.length; i < l; i++) {
this._removeReference(this.models[i]);
}
options.previousModels = this.models;
this._reset();
this.add(models, _.extend({silent: true}, options));
if (!options.silent) this.trigger('reset', this, options);
return this;
},
// Add a model to the end of the collection.
push: function(model, options) {
model = this._prepareModel(model, options);
this.add(model, _.extend({at: this.length}, options));
return model;
},
// Remove a model from the end of the collection.
pop: function(options) {
var model = this.at(this.length - 1);
this.remove(model, options);
return model;
},
// Add a model to the beginning of the collection.
unshift: function(model, options) {
model = this._prepareModel(model, options);
this.add(model, _.extend({at: 0}, options));
return model;
},
// Remove a model from the beginning of the collection.
shift: function(options) {
var model = this.at(0);
this.remove(model, options);
return model;
},
// Slice out a sub-array of models from the collection.
slice: function(begin, end) {
return this.models.slice(begin, end);
},
// Get a model from the set by id.
get: function(obj) {
if (obj == null) return void 0;
return this._byId[obj.id != null ? obj.id : obj.cid || obj];
},
// Get the model at the given index.
at: function(index) {
return this.models[index];
},
// Return models with matching attributes. Useful for simple cases of
// `filter`.
where: function(attrs, first) {
if (_.isEmpty(attrs)) return first ? void 0 : [];
return this[first ? 'find' : 'filter'](function(model) {
for (var key in attrs) {
if (attrs[key] !== model.get(key)) return false;
}
return true;
});
},
// Return the first model with matching attributes. Useful for simple cases
// of `find`.
findWhere: function(attrs) {
return this.where(attrs, true);
},
// Force the collection to re-sort itself. You don't need to call this under
// normal circumstances, as the set will maintain sort order as each item
// is added.
sort: function(options) {
if (!this.comparator) throw new Error('Cannot sort a set without a comparator');
options || (options = {});
// Run sort based on type of `comparator`.
if (_.isString(this.comparator) || this.comparator.length === 1) {
this.models = this.sortBy(this.comparator, this);
} else {
this.models.sort(_.bind(this.comparator, this));
}
if (!options.silent) this.trigger('sort', this, options);
return this;
},
// Figure out the smallest index at which a model should be inserted so as
// to maintain order.
sortedIndex: function(model, value, context) {
value || (value = this.comparator);
var iterator = _.isFunction(value) ? value : function(model) {
return model.get(value);
};
return _.sortedIndex(this.models, model, iterator, context);
},
// Pluck an attribute from each model in the collection.
pluck: function(attr) {
return _.invoke(this.models, 'get', attr);
},
// Fetch the default set of models for this collection, resetting the
// collection when they arrive. If `reset: true` is passed, the response
// data will be passed through the `reset` method instead of `set`.
fetch: function(options) {
options = options ? _.clone(options) : {};
if (options.parse === void 0) options.parse = true;
var success = options.success;
var collection = this;
options.success = function(resp) {
var method = options.reset ? 'reset' : 'set';
collection[method](resp, options);
if (success) success(collection, resp, options);
collection.trigger('sync', collection, resp, options);
};
wrapError(this, options);
return this.sync('read', this, options);
},
// Create a new instance of a model in this collection. Add the model to the
// collection immediately, unless `wait: true` is passed, in which case we
// wait for the server to agree.
create: function(model, options) {
options = options ? _.clone(options) : {};
if (!(model = this._prepareModel(model, options))) return false;
if (!options.wait) this.add(model, options);
var collection = this;
var success = options.success;
options.success = function(resp) {
if (options.wait) collection.add(model, options);
if (success) success(model, resp, options);
};
model.save(null, options);
return model;
},
// **parse** converts a response into a list of models to be added to the
// collection. The default implementation is just to pass it through.
parse: function(resp, options) {
return resp;
},
// Create a new collection with an identical list of models as this one.
clone: function() {
return new this.constructor(this.models);
},
// Private method to reset all internal state. Called when the collection
// is first initialized or reset.
_reset: function() {
this.length = 0;
this.models = [];
this._byId = {};
},
// Prepare a hash of attributes (or other model) to be added to this
// collection.
_prepareModel: function(attrs, options) {
if (attrs instanceof Model) {
if (!attrs.collection) attrs.collection = this;
return attrs;
}
options || (options = {});
options.collection = this;
var model = new this.model(attrs, options);
if (!model._validate(attrs, options)) {
this.trigger('invalid', this, attrs, options);
return false;
}
return model;
},
// Internal method to sever a model's ties to a collection.
_removeReference: function(model) {
if (this === model.collection) delete model.collection;
model.off('all', this._onModelEvent, this);
},
// Internal method called every time a model in the set fires an event.
// Sets need to update their indexes when models change ids. All other
// events simply proxy through. "add" and "remove" events that originate
// in other collections are ignored.
_onModelEvent: function(event, model, collection, options) {
if ((event === 'add' || event === 'remove') && collection !== this) return;
if (event === 'destroy') this.remove(model, options);
if (model && event === 'change:' + model.idAttribute) {
delete this._byId[model.previous(model.idAttribute)];
if (model.id != null) this._byId[model.id] = model;
}
this.trigger.apply(this, arguments);
}
});
// Underscore methods that we want to implement on the Collection.
// 90% of the core usefulness of Backbone Collections is actually implemented
// right here:
var methods = ['forEach', 'each', 'map', 'collect', 'reduce', 'foldl',
'inject', 'reduceRight', 'foldr', 'find', 'detect', 'filter', 'select',
'reject', 'every', 'all', 'some', 'any', 'include', 'contains', 'invoke',
'max', 'min', 'toArray', 'size', 'first', 'head', 'take', 'initial', 'rest',
'tail', 'drop', 'last', 'without', 'indexOf', 'shuffle', 'lastIndexOf',
'isEmpty', 'chain'];
// Mix in each Underscore method as a proxy to `Collection#models`.
_.each(methods, function(method) {
Collection.prototype[method] = function() {
var args = slice.call(arguments);
args.unshift(this.models);
return _[method].apply(_, args);
};
});
// Underscore methods that take a property name as an argument.
var attributeMethods = ['groupBy', 'countBy', 'sortBy'];
// Use attributes instead of properties.
_.each(attributeMethods, function(method) {
Collection.prototype[method] = function(value, context) {
var iterator = _.isFunction(value) ? value : function(model) {
return model.get(value);
};
return _[method](this.models, iterator, context);
};
});
// Backbone.View
// -------------
// Backbone Views are almost more convention than they are actual code. A View
// is simply a JavaScript object that represents a logical chunk of UI in the
// DOM. This might be a single item, an entire list, a sidebar or panel, or
// even the surrounding frame which wraps your whole app. Defining a chunk of
// UI as a **View** allows you to define your DOM events declaratively, without
// having to worry about render order ... and makes it easy for the view to
// react to specific changes in the state of your models.
// Creating a Backbone.View creates its initial element outside of the DOM,
// if an existing element is not provided...
var View = Backbone.View = function(options) {
this.cid = _.uniqueId('view');
this._configure(options || {});
this._ensureElement();
this.initialize.apply(this, arguments);
this.delegateEvents();
};
// Cached regex to split keys for `delegate`.
var delegateEventSplitter = /^(\S+)\s*(.*)$/;
// List of view options to be merged as properties.
var viewOptions = ['model', 'collection', 'el', 'id', 'attributes', 'className', 'tagName', 'events'];
// Set up all inheritable **Backbone.View** properties and methods.
_.extend(View.prototype, Events, {
// The default `tagName` of a View's element is `"div"`.
tagName: 'div',
// jQuery delegate for element lookup, scoped to DOM elements within the
// current view. This should be prefered to global lookups where possible.
$: function(selector) {
return this.$el.find(selector);
},
// Initialize is an empty function by default. Override it with your own
// initialization logic.
initialize: function(){},
// **render** is the core function that your view should override, in order
// to populate its element (`this.el`), with the appropriate HTML. The
// convention is for **render** to always return `this`.
render: function() {
return this;
},
// Remove this view by taking the element out of the DOM, and removing any
// applicable Backbone.Events listeners.
remove: function() {
this.$el.remove();
this.stopListening();
return this;
},
// Change the view's element (`this.el` property), including event
// re-delegation.
setElement: function(element, delegate) {
if (this.$el) this.undelegateEvents();
this.$el = element instanceof Backbone.$ ? element : Backbone.$(element);
this.el = this.$el[0];
if (delegate !== false) this.delegateEvents();
return this;
},
// Set callbacks, where `this.events` is a hash of
//
// *{"event selector": "callback"}*
//
// {
// 'mousedown .title': 'edit',
// 'click .button': 'save'
// 'click .open': function(e) { ... }
// }
//
// pairs. Callbacks will be bound to the view, with `this` set properly.
// Uses event delegation for efficiency.
// Omitting the selector binds the event to `this.el`.
// This only works for delegate-able events: not `focus`, `blur`, and
// not `change`, `submit`, and `reset` in Internet Explorer.
delegateEvents: function(events) {
if (!(events || (events = _.result(this, 'events')))) return this;
this.undelegateEvents();
for (var key in events) {
var method = events[key];
if (!_.isFunction(method)) method = this[events[key]];
if (!method) continue;
var match = key.match(delegateEventSplitter);
var eventName = match[1], selector = match[2];
method = _.bind(method, this);
eventName += '.delegateEvents' + this.cid;
if (selector === '') {
this.$el.on(eventName, method);
} else {
this.$el.on(eventName, selector, method);
}
}
return this;
},
// Clears all callbacks previously bound to the view with `delegateEvents`.
// You usually don't need to use this, but may wish to if you have multiple
// Backbone views attached to the same DOM element.
undelegateEvents: function() {
this.$el.off('.delegateEvents' + this.cid);
return this;
},
// Performs the initial configuration of a View with a set of options.
// Keys with special meaning *(e.g. model, collection, id, className)* are
// attached directly to the view. See `viewOptions` for an exhaustive
// list.
_configure: function(options) {
if (this.options) options = _.extend({}, _.result(this, 'options'), options);
_.extend(this, _.pick(options, viewOptions));
this.options = options;
},
// Ensure that the View has a DOM element to render into.
// If `this.el` is a string, pass it through `$()`, take the first
// matching element, and re-assign it to `el`. Otherwise, create
// an element from the `id`, `className` and `tagName` properties.
_ensureElement: function() {
if (!this.el) {
var attrs = _.extend({}, _.result(this, 'attributes'));
if (this.id) attrs.id = _.result(this, 'id');
if (this.className) attrs['class'] = _.result(this, 'className');
var $el = Backbone.$('<' + _.result(this, 'tagName') + '>').attr(attrs);
this.setElement($el, false);
} else {
this.setElement(_.result(this, 'el'), false);
}
}
});
// Backbone.sync
// -------------
// Override this function to change the manner in which Backbone persists
// models to the server. You will be passed the type of request, and the
// model in question. By default, makes a RESTful Ajax request
// to the model's `url()`. Some possible customizations could be:
//
// * Use `setTimeout` to batch rapid-fire updates into a single request.
// * Send up the models as XML instead of JSON.
// * Persist models via WebSockets instead of Ajax.
//
// Turn on `Backbone.emulateHTTP` in order to send `PUT` and `DELETE` requests
// as `POST`, with a `_method` parameter containing the true HTTP method,
// as well as all requests with the body as `application/x-www-form-urlencoded`
// instead of `application/json` with the model in a param named `model`.
// Useful when interfacing with server-side languages like **PHP** that make
// it difficult to read the body of `PUT` requests.
Backbone.sync = function(method, model, options) {
var type = methodMap[method];
// Default options, unless specified.
_.defaults(options || (options = {}), {
emulateHTTP: Backbone.emulateHTTP,
emulateJSON: Backbone.emulateJSON
});
// Default JSON-request options.
var params = {type: type, dataType: 'json'};
// Ensure that we have a URL.
if (!options.url) {
params.url = _.result(model, 'url') || urlError();
}
// Ensure that we have the appropriate request data.
if (options.data == null && model && (method === 'create' || method === 'update' || method === 'patch')) {
params.contentType = 'application/json';
params.data = JSON.stringify(options.attrs || model.toJSON(options));
}
// For older servers, emulate JSON by encoding the request into an HTML-form.
if (options.emulateJSON) {
params.contentType = 'application/x-www-form-urlencoded';
params.data = params.data ? {model: params.data} : {};
}
// For older servers, emulate HTTP by mimicking the HTTP method with `_method`
// And an `X-HTTP-Method-Override` header.
if (options.emulateHTTP && (type === 'PUT' || type === 'DELETE' || type === 'PATCH')) {
params.type = 'POST';
if (options.emulateJSON) params.data._method = type;
var beforeSend = options.beforeSend;
options.beforeSend = function(xhr) {
xhr.setRequestHeader('X-HTTP-Method-Override', type);
if (beforeSend) return beforeSend.apply(this, arguments);
};
}
// Don't process data on a non-GET request.
if (params.type !== 'GET' && !options.emulateJSON) {
params.processData = false;
}
// If we're sending a `PATCH` request, and we're in an old Internet Explorer
// that still has ActiveX enabled by default, override jQuery to use that
// for XHR instead. Remove this line when jQuery supports `PATCH` on IE8.
if (params.type === 'PATCH' && window.ActiveXObject &&
!(window.external && window.external.msActiveXFilteringEnabled)) {
params.xhr = function() {
return new ActiveXObject("Microsoft.XMLHTTP");
};
}
// Make the request, allowing the user to override any Ajax options.
var xhr = options.xhr = Backbone.ajax(_.extend(params, options));
model.trigger('request', model, xhr, options);
return xhr;
};
// Map from CRUD to HTTP for our default `Backbone.sync` implementation.
var methodMap = {
'create': 'POST',
'update': 'PUT',
'patch': 'PATCH',
'delete': 'DELETE',
'read': 'GET'
};
// Set the default implementation of `Backbone.ajax` to proxy through to `$`.
// Override this if you'd like to use a different library.
Backbone.ajax = function() {
return Backbone.$.ajax.apply(Backbone.$, arguments);
};
// Backbone.Router
// ---------------
// Routers map faux-URLs to actions, and fire events when routes are
// matched. Creating a new one sets its `routes` hash, if not set statically.
var Router = Backbone.Router = function(options) {
options || (options = {});
if (options.routes) this.routes = options.routes;
this._bindRoutes();
this.initialize.apply(this, arguments);
};
// Cached regular expressions for matching named param parts and splatted
// parts of route strings.
var optionalParam = /\((.*?)\)/g;
var namedParam = /(\(\?)?:\w+/g;
var splatParam = /\*\w+/g;
var escapeRegExp = /[\-{}\[\]+?.,\\\^$|#\s]/g;
// Set up all inheritable **Backbone.Router** properties and methods.
_.extend(Router.prototype, Events, {
// Initialize is an empty function by default. Override it with your own
// initialization logic.
initialize: function(){},
// Manually bind a single named route to a callback. For example:
//
// this.route('search/:query/p:num', 'search', function(query, num) {
// ...
// });
//
route: function(route, name, callback) {
if (!_.isRegExp(route)) route = this._routeToRegExp(route);
if (_.isFunction(name)) {
callback = name;
name = '';
}
if (!callback) callback = this[name];
var router = this;
Backbone.history.route(route, function(fragment) {
var args = router._extractParameters(route, fragment);
callback && callback.apply(router, args);
router.trigger.apply(router, ['route:' + name].concat(args));
router.trigger('route', name, args);
Backbone.history.trigger('route', router, name, args);
});
return this;
},
// Simple proxy to `Backbone.history` to save a fragment into the history.
navigate: function(fragment, options) {
Backbone.history.navigate(fragment, options);
return this;
},
// Bind all defined routes to `Backbone.history`. We have to reverse the
// order of the routes here to support behavior where the most general
// routes can be defined at the bottom of the route map.
_bindRoutes: function() {
if (!this.routes) return;
this.routes = _.result(this, 'routes');
var route, routes = _.keys(this.routes);
while ((route = routes.pop()) != null) {
this.route(route, this.routes[route]);
}
},
// Convert a route string into a regular expression, suitable for matching
// against the current location hash.
_routeToRegExp: function(route) {
route = route.replace(escapeRegExp, '\\$&')
.replace(optionalParam, '(?:$1)?')
.replace(namedParam, function(match, optional){
return optional ? match : '([^\/]+)';
})
.replace(splatParam, '(.*?)');
return new RegExp('^' + route + '$');
},
// Given a route, and a URL fragment that it matches, return the array of
// extracted decoded parameters. Empty or unmatched parameters will be
// treated as `null` to normalize cross-browser behavior.
_extractParameters: function(route, fragment) {
var params = route.exec(fragment).slice(1);
return _.map(params, function(param) {
return param ? decodeURIComponent(param) : null;
});
}
});
// Backbone.History
// ----------------
// Handles cross-browser history management, based on either
// [pushState](http://diveintohtml5.info/history.html) and real URLs, or
// [onhashchange](https://developer.mozilla.org/en-US/docs/DOM/window.onhashchange)
// and URL fragments. If the browser supports neither (old IE, natch),
// falls back to polling.
var History = Backbone.History = function() {
this.handlers = [];
_.bindAll(this, 'checkUrl');
// Ensure that `History` can be used outside of the browser.
if (typeof window !== 'undefined') {
this.location = window.location;
this.history = window.history;
}
};
// Cached regex for stripping a leading hash/slash and trailing space.
var routeStripper = /^[#\/]|\s+$/g;
// Cached regex for stripping leading and trailing slashes.
var rootStripper = /^\/+|\/+$/g;
// Cached regex for detecting MSIE.
var isExplorer = /msie [\w.]+/;
// Cached regex for removing a trailing slash.
var trailingSlash = /\/$/;
// Has the history handling already been started?
History.started = false;
// Set up all inheritable **Backbone.History** properties and methods.
_.extend(History.prototype, Events, {
// The default interval to poll for hash changes, if necessary, is
// twenty times a second.
interval: 50,
// Gets the true hash value. Cannot use location.hash directly due to bug
// in Firefox where location.hash will always be decoded.
getHash: function(window) {
var match = (window || this).location.href.match(/#(.*)$/);
return match ? match[1] : '';
},
// Get the cross-browser normalized URL fragment, either from the URL,
// the hash, or the override.
getFragment: function(fragment, forcePushState) {
if (fragment == null) {
if (this._hasPushState || !this._wantsHashChange || forcePushState) {
fragment = this.location.pathname;
var root = this.root.replace(trailingSlash, '');
if (!fragment.indexOf(root)) fragment = fragment.substr(root.length);
} else {
fragment = this.getHash();
}
}
return fragment.replace(routeStripper, '');
},
// Start the hash change handling, returning `true` if the current URL matches
// an existing route, and `false` otherwise.
start: function(options) {
if (History.started) throw new Error("Backbone.history has already been started");
History.started = true;
// Figure out the initial configuration. Do we need an iframe?
// Is pushState desired ... is it available?
this.options = _.extend({}, {root: '/'}, this.options, options);
this.root = this.options.root;
this._wantsHashChange = this.options.hashChange !== false;
this._wantsPushState = !!this.options.pushState;
this._hasPushState = !!(this.options.pushState && this.history && this.history.pushState);
var fragment = this.getFragment();
var docMode = document.documentMode;
var oldIE = (isExplorer.exec(navigator.userAgent.toLowerCase()) && (!docMode || docMode <= 7));
// Normalize root to always include a leading and trailing slash.
this.root = ('/' + this.root + '/').replace(rootStripper, '/');
if (oldIE && this._wantsHashChange) {
this.iframe = Backbone.$('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo('body')[0].contentWindow;
this.navigate(fragment);
}
// Depending on whether we're using pushState or hashes, and whether
// 'onhashchange' is supported, determine how we check the URL state.
if (this._hasPushState) {
Backbone.$(window).on('popstate', this.checkUrl);
} else if (this._wantsHashChange && ('onhashchange' in window) && !oldIE) {
Backbone.$(window).on('hashchange', this.checkUrl);
} else if (this._wantsHashChange) {
this._checkUrlInterval = setInterval(this.checkUrl, this.interval);
}
// Determine if we need to change the base url, for a pushState link
// opened by a non-pushState browser.
this.fragment = fragment;
var loc = this.location;
var atRoot = loc.pathname.replace(/[^\/]$/, '$&/') === this.root;
// If we've started off with a route from a `pushState`-enabled browser,
// but we're currently in a browser that doesn't support it...
if (this._wantsHashChange && this._wantsPushState && !this._hasPushState && !atRoot) {
this.fragment = this.getFragment(null, true);
this.location.replace(this.root + this.location.search + '#' + this.fragment);
// Return immediately as browser will do redirect to new url
return true;
// Or if we've started out with a hash-based route, but we're currently
// in a browser where it could be `pushState`-based instead...
} else if (this._wantsPushState && this._hasPushState && atRoot && loc.hash) {
this.fragment = this.getHash().replace(routeStripper, '');
this.history.replaceState({}, document.title, this.root + this.fragment + loc.search);
}
if (!this.options.silent) return this.loadUrl();
},
// Disable Backbone.history, perhaps temporarily. Not useful in a real app,
// but possibly useful for unit testing Routers.
stop: function() {
Backbone.$(window).off('popstate', this.checkUrl).off('hashchange', this.checkUrl);
clearInterval(this._checkUrlInterval);
History.started = false;
},
// Add a route to be tested when the fragment changes. Routes added later
// may override previous routes.
route: function(route, callback) {
this.handlers.unshift({route: route, callback: callback});
},
// Checks the current URL to see if it has changed, and if it has,
// calls `loadUrl`, normalizing across the hidden iframe.
checkUrl: function(e) {
var current = this.getFragment();
if (current === this.fragment && this.iframe) {
current = this.getFragment(this.getHash(this.iframe));
}
if (current === this.fragment) return false;
if (this.iframe) this.navigate(current);
this.loadUrl() || this.loadUrl(this.getHash());
},
// Attempt to load the current URL fragment. If a route succeeds with a
// match, returns `true`. If no defined routes matches the fragment,
// returns `false`.
loadUrl: function(fragmentOverride) {
var fragment = this.fragment = this.getFragment(fragmentOverride);
var matched = _.any(this.handlers, function(handler) {
if (handler.route.test(fragment)) {
handler.callback(fragment);
return true;
}
});
return matched;
},
// Save a fragment into the hash history, or replace the URL state if the
// 'replace' option is passed. You are responsible for properly URL-encoding
// the fragment in advance.
//
// The options object can contain `trigger: true` if you wish to have the
// route callback be fired (not usually desirable), or `replace: true`, if
// you wish to modify the current URL without adding an entry to the history.
navigate: function(fragment, options) {
if (!History.started) return false;
if (!options || options === true) options = {trigger: options};
fragment = this.getFragment(fragment || '');
if (this.fragment === fragment) return;
this.fragment = fragment;
var url = this.root + fragment;
// If pushState is available, we use it to set the fragment as a real URL.
if (this._hasPushState) {
this.history[options.replace ? 'replaceState' : 'pushState']({}, document.title, url);
// If hash changes haven't been explicitly disabled, update the hash
// fragment to store history.
} else if (this._wantsHashChange) {
this._updateHash(this.location, fragment, options.replace);
if (this.iframe && (fragment !== this.getFragment(this.getHash(this.iframe)))) {
// Opening and closing the iframe tricks IE7 and earlier to push a
// history entry on hash-tag change. When replace is true, we don't
// want this.
if(!options.replace) this.iframe.document.open().close();
this._updateHash(this.iframe.location, fragment, options.replace);
}
// If you've told us that you explicitly don't want fallback hashchange-
// based history, then `navigate` becomes a page refresh.
} else {
return this.location.assign(url);
}
if (options.trigger) this.loadUrl(fragment);
},
// Update the hash location, either replacing the current entry, or adding
// a new one to the browser history.
_updateHash: function(location, fragment, replace) {
if (replace) {
var href = location.href.replace(/(javascript:|#).*$/, '');
location.replace(href + '#' + fragment);
} else {
// Some browsers require that `hash` contains a leading #.
location.hash = '#' + fragment;
}
}
});
// Create the default Backbone.history.
Backbone.history = new History;
// Helpers
// -------
// Helper function to correctly set up the prototype chain, for subclasses.
// Similar to `goog.inherits`, but uses a hash of prototype properties and
// class properties to be extended.
var extend = function(protoProps, staticProps) {
var parent = this;
var child;
// The constructor function for the new subclass is either defined by you
// (the "constructor" property in your `extend` definition), or defaulted
// by us to simply call the parent's constructor.
if (protoProps && _.has(protoProps, 'constructor')) {
child = protoProps.constructor;
} else {
child = function(){ return parent.apply(this, arguments); };
}
// Add static properties to the constructor function, if supplied.
_.extend(child, parent, staticProps);
// Set the prototype chain to inherit from `parent`, without calling
// `parent`'s constructor function.
var Surrogate = function(){ this.constructor = child; };
Surrogate.prototype = parent.prototype;
child.prototype = new Surrogate;
// Add prototype properties (instance properties) to the subclass,
// if supplied.
if (protoProps) _.extend(child.prototype, protoProps);
// Set a convenience property in case the parent's prototype is needed
// later.
child.__super__ = parent.prototype;
return child;
};
// Set up inheritance for the model, collection, router, view and history.
Model.extend = Collection.extend = Router.extend = View.extend = History.extend = extend;
// Throw an error when a URL is needed, and none is supplied.
var urlError = function() {
throw new Error('A "url" property or function must be specified');
};
// Wrap an optional error callback with a fallback error event.
var wrapError = function (model, options) {
var error = options.error;
options.error = function(resp) {
if (error) error(model, resp, options);
model.trigger('error', model, resp, options);
};
};
}).call(this);
Raw
reverseRelationTest_js_lib_jquery.js
/*!
* jQuery JavaScript Library v2.0.3
* http://jquery.com/
*
* Includes Sizzle.js
* http://sizzlejs.com/
*
* Copyright 2005, 2013 jQuery Foundation, Inc. and other contributors
* Released under the MIT license
* http://jquery.org/license
*
* Date: 2013-07-03T13:30Z
*/
(function( window, undefined ) {
// Can't do this because several apps including ASP.NET trace
// the stack via arguments.caller.callee and Firefox dies if
// you try to trace through "use strict" call chains. (#13335)
// Support: Firefox 18+
//"use strict";
var
// A central reference to the root jQuery(document)
rootjQuery,
// The deferred used on DOM ready
readyList,
// Support: IE9
// For `typeof xmlNode.method` instead of `xmlNode.method !== undefined`
core_strundefined = typeof undefined,
// Use the correct document accordingly with window argument (sandbox)
location = window.location,
document = window.document,
docElem = document.documentElement,
// Map over jQuery in case of overwrite
_jQuery = window.jQuery,
// Map over the $ in case of overwrite
_$ = window.$,
// [[Class]] -> type pairs
class2type = {},
// List of deleted data cache ids, so we can reuse them
core_deletedIds = [],
core_version = "2.0.3",
// Save a reference to some core methods
core_concat = core_deletedIds.concat,
core_push = core_deletedIds.push,
core_slice = core_deletedIds.slice,
core_indexOf = core_deletedIds.indexOf,
core_toString = class2type.toString,
core_hasOwn = class2type.hasOwnProperty,
core_trim = core_version.trim,
// Define a local copy of jQuery
jQuery = function( selector, context ) {
// The jQuery object is actually just the init constructor 'enhanced'
return new jQuery.fn.init( selector, context, rootjQuery );
},
// Used for matching numbers
core_pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,
// Used for splitting on whitespace
core_rnotwhite = /\S+/g,
// A simple way to check for HTML strings
// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
// Strict HTML recognition (#11290: must start with <)
rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
// Match a standalone tag
rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>|)$/,
// Matches dashed string for camelizing
rmsPrefix = /^-ms-/,
rdashAlpha = /-([\da-z])/gi,
// Used by jQuery.camelCase as callback to replace()
fcamelCase = function( all, letter ) {
return letter.toUpperCase();
},
// The ready event handler and self cleanup method
completed = function() {
document.removeEventListener( "DOMContentLoaded", completed, false );
window.removeEventListener( "load", completed, false );
jQuery.ready();
};
jQuery.fn = jQuery.prototype = {
// The current version of jQuery being used
jquery: core_version,
constructor: jQuery,
init: function( selector, context, rootjQuery ) {
var match, elem;
// HANDLE: $(""), $(null), $(undefined), $(false)
if ( !selector ) {
return this;
}
// Handle HTML strings
if ( typeof selector === "string" ) {
if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {
// Assume that strings that start and end with <> are HTML and skip the regex check
match = [ null, selector, null ];
} else {
match = rquickExpr.exec( selector );
}
// Match html or make sure no context is specified for #id
if ( match && (match[1] || !context) ) {
// HANDLE: $(html) -> $(array)
if ( match[1] ) {
context = context instanceof jQuery ? context[0] : context;
// scripts is true for back-compat
jQuery.merge( this, jQuery.parseHTML(
match[1],
context && context.nodeType ? context.ownerDocument || context : document,
true
) );
// HANDLE: $(html, props)
if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
for ( match in context ) {
// Properties of context are called as methods if possible
if ( jQuery.isFunction( this[ match ] ) ) {
this[ match ]( context[ match ] );
// ...and otherwise set as attributes
} else {
this.attr( match, context[ match ] );
}
}
}
return this;
// HANDLE: $(#id)
} else {
elem = document.getElementById( match[2] );
// Check parentNode to catch when Blackberry 4.6 returns
// nodes that are no longer in the document #6963
if ( elem && elem.parentNode ) {
// Inject the element directly into the jQuery object
this.length = 1;
this[0] = elem;
}
this.context = document;
this.selector = selector;
return this;
}
// HANDLE: $(expr, $(...))
} else if ( !context || context.jquery ) {
return ( context || rootjQuery ).find( selector );
// HANDLE: $(expr, context)
// (which is just equivalent to: $(context).find(expr)
} else {
return this.constructor( context ).find( selector );
}
// HANDLE: $(DOMElement)
} else if ( selector.nodeType ) {
this.context = this[0] = selector;
this.length = 1;
return this;
// HANDLE: $(function)
// Shortcut for document ready
} else if ( jQuery.isFunction( selector ) ) {
return rootjQuery.ready( selector );
}
if ( selector.selector !== undefined ) {
this.selector = selector.selector;
this.context = selector.context;
}
return jQuery.makeArray( selector, this );
},
// Start with an empty selector
selector: "",
// The default length of a jQuery object is 0
length: 0,
toArray: function() {
return core_slice.call( this );
},
// Get the Nth element in the matched element set OR
// Get the whole matched element set as a clean array
get: function( num ) {
return num == null ?
// Return a 'clean' array
this.toArray() :
// Return just the object
( num < 0 ? this[ this.length + num ] : this[ num ] );
},
// Take an array of elements and push it onto the stack
// (returning the new matched element set)
pushStack: function( elems ) {
// Build a new jQuery matched element set
var ret = jQuery.merge( this.constructor(), elems );
// Add the old object onto the stack (as a reference)
ret.prevObject = this;
ret.context = this.context;
// Return the newly-formed element set
return ret;
},
// Execute a callback for every element in the matched set.
// (You can seed the arguments with an array of args, but this is
// only used internally.)
each: function( callback, args ) {
return jQuery.each( this, callback, args );
},
ready: function( fn ) {
// Add the callback
jQuery.ready.promise().done( fn );
return this;
},
slice: function() {
return this.pushStack( core_slice.apply( this, arguments ) );
},
first: function() {
return this.eq( 0 );
},
last: function() {
return this.eq( -1 );
},
eq: function( i ) {
var len = this.length,
j = +i + ( i < 0 ? len : 0 );
return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );
},
map: function( callback ) {
return this.pushStack( jQuery.map(this, function( elem, i ) {
return callback.call( elem, i, elem );
}));
},
end: function() {
return this.prevObject || this.constructor(null);
},
// For internal use only.
// Behaves like an Array's method, not like a jQuery method.
push: core_push,
sort: [].sort,
splice: [].splice
};
// Give the init function the jQuery prototype for later instantiation
jQuery.fn.init.prototype = jQuery.fn;
jQuery.extend = jQuery.fn.extend = function() {
var options, name, src, copy, copyIsArray, clone,
target = arguments[0] || {},
i = 1,
length = arguments.length,
deep = false;
// Handle a deep copy situation
if ( typeof target === "boolean" ) {
deep = target;
target = arguments[1] || {};
// skip the boolean and the target
i = 2;
}
// Handle case when target is a string or something (possible in deep copy)
if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
target = {};
}
// extend jQuery itself if only one argument is passed
if ( length === i ) {
target = this;
--i;
}
for ( ; i < length; i++ ) {
// Only deal with non-null/undefined values
if ( (options = arguments[ i ]) != null ) {
// Extend the base object
for ( name in options ) {
src = target[ name ];
copy = options[ name ];
// Prevent never-ending loop
if ( target === copy ) {
continue;
}
// Recurse if we're merging plain objects or arrays
if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
if ( copyIsArray ) {
copyIsArray = false;
clone = src && jQuery.isArray(src) ? src : [];
} else {
clone = src && jQuery.isPlainObject(src) ? src : {};
}
// Never move original objects, clone them
target[ name ] = jQuery.extend( deep, clone, copy );
// Don't bring in undefined values
} else if ( copy !== undefined ) {
target[ name ] = copy;
}
}
}
}
// Return the modified object
return target;
};
jQuery.extend({
// Unique for each copy of jQuery on the page
expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),
noConflict: function( deep ) {
if ( window.$ === jQuery ) {
window.$ = _$;
}
if ( deep && window.jQuery === jQuery ) {
window.jQuery = _jQuery;
}
return jQuery;
},
// Is the DOM ready to be used? Set to true once it occurs.
isReady: false,
// A counter to track how many items to wait for before
// the ready event fires. See #6781
readyWait: 1,
// Hold (or release) the ready event
holdReady: function( hold ) {
if ( hold ) {
jQuery.readyWait++;
} else {
jQuery.ready( true );
}
},
// Handle when the DOM is ready
ready: function( wait ) {
// Abort if there are pending holds or we're already ready
if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
return;
}
// Remember that the DOM is ready
jQuery.isReady = true;
// If a normal DOM Ready event fired, decrement, and wait if need be
if ( wait !== true && --jQuery.readyWait > 0 ) {
return;
}
// If there are functions bound, to execute
readyList.resolveWith( document, [ jQuery ] );
// Trigger any bound ready events
if ( jQuery.fn.trigger ) {
jQuery( document ).trigger("ready").off("ready");
}
},
// See test/unit/core.js for details concerning isFunction.
// Since version 1.3, DOM methods and functions like alert
// aren't supported. They return false on IE (#2968).
isFunction: function( obj ) {
return jQuery.type(obj) === "function";
},
isArray: Array.isArray,
isWindow: function( obj ) {
return obj != null && obj === obj.window;
},
isNumeric: function( obj ) {
return !isNaN( parseFloat(obj) ) && isFinite( obj );
},
type: function( obj ) {
if ( obj == null ) {
return String( obj );
}
// Support: Safari <= 5.1 (functionish RegExp)
return typeof obj === "object" || typeof obj === "function" ?
class2type[ core_toString.call(obj) ] || "object" :
typeof obj;
},
isPlainObject: function( obj ) {
// Not plain objects:
// - Any object or value whose internal [[Class]] property is not "[object Object]"
// - DOM nodes
// - window
if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
return false;
}
// Support: Firefox <20
// The try/catch suppresses exceptions thrown when attempting to access
// the "constructor" property of certain host objects, ie. |window.location|
// https://bugzilla.mozilla.org/show_bug.cgi?id=814622
try {
if ( obj.constructor &&
!core_hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {
return false;
}
} catch ( e ) {
return false;
}
// If the function hasn't returned already, we're confident that
// |obj| is a plain object, created by {} or constructed with new Object
return true;
},
isEmptyObject: function( obj ) {
var name;
for ( name in obj ) {
return false;
}
return true;
},
error: function( msg ) {
throw new Error( msg );
},
// data: string of html
// context (optional): If specified, the fragment will be created in this context, defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
parseHTML: function( data, context, keepScripts ) {
if ( !data || typeof data !== "string" ) {
return null;
}
if ( typeof context === "boolean" ) {
keepScripts = context;
context = false;
}
context = context || document;
var parsed = rsingleTag.exec( data ),
scripts = !keepScripts && [];
// Single tag
if ( parsed ) {
return [ context.createElement( parsed[1] ) ];
}
parsed = jQuery.buildFragment( [ data ], context, scripts );
if ( scripts ) {
jQuery( scripts ).remove();
}
return jQuery.merge( [], parsed.childNodes );
},
parseJSON: JSON.parse,
// Cross-browser xml parsing
parseXML: function( data ) {
var xml, tmp;
if ( !data || typeof data !== "string" ) {
return null;
}
// Support: IE9
try {
tmp = new DOMParser();
xml = tmp.parseFromString( data , "text/xml" );
} catch ( e ) {
xml = undefined;
}
if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
jQuery.error( "Invalid XML: " + data );
}
return xml;
},
noop: function() {},
// Evaluates a script in a global context
globalEval: function( code ) {
var script,
indirect = eval;
code = jQuery.trim( code );
if ( code ) {
// If the code includes a valid, prologue position
// strict mode pragma, execute code by injecting a
// script tag into the document.
if ( code.indexOf("use strict") === 1 ) {
script = document.createElement("script");
script.text = code;
document.head.appendChild( script ).parentNode.removeChild( script );
} else {
// Otherwise, avoid the DOM node creation, insertion
// and removal by using an indirect global eval
indirect( code );
}
}
},
// Convert dashed to camelCase; used by the css and data modules
// Microsoft forgot to hump their vendor prefix (#9572)
camelCase: function( string ) {
return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
},
nodeName: function( elem, name ) {
return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
},
// args is for internal usage only
each: function( obj, callback, args ) {
var value,
i = 0,
length = obj.length,
isArray = isArraylike( obj );
if ( args ) {
if ( isArray ) {
for ( ; i < length; i++ ) {
value = callback.apply( obj[ i ], args );
if ( value === false ) {
break;
}
}
} else {
for ( i in obj ) {
value = callback.apply( obj[ i ], args );
if ( value === false ) {
break;
}
}
}
// A special, fast, case for the most common use of each
} else {
if ( isArray ) {
for ( ; i < length; i++ ) {
value = callback.call( obj[ i ], i, obj[ i ] );
if ( value === false ) {
break;
}
}
} else {
for ( i in obj ) {
value = callback.call( obj[ i ], i, obj[ i ] );
if ( value === false ) {
break;
}
}
}
}
return obj;
},
trim: function( text ) {
return text == null ? "" : core_trim.call( text );
},
// results is for internal usage only
makeArray: function( arr, results ) {
var ret = results || [];
if ( arr != null ) {
if ( isArraylike( Object(arr) ) ) {
jQuery.merge( ret,
typeof arr === "string" ?
[ arr ] : arr
);
} else {
core_push.call( ret, arr );
}
}
return ret;
},
inArray: function( elem, arr, i ) {
return arr == null ? -1 : core_indexOf.call( arr, elem, i );
},
merge: function( first, second ) {
var l = second.length,
i = first.length,
j = 0;
if ( typeof l === "number" ) {
for ( ; j < l; j++ ) {
first[ i++ ] = second[ j ];
}
} else {
while ( second[j] !== undefined ) {
first[ i++ ] = second[ j++ ];
}
}
first.length = i;
return first;
},
grep: function( elems, callback, inv ) {
var retVal,
ret = [],
i = 0,
length = elems.length;
inv = !!inv;
// Go through the array, only saving the items
// that pass the validator function
for ( ; i < length; i++ ) {
retVal = !!callback( elems[ i ], i );
if ( inv !== retVal ) {
ret.push( elems[ i ] );
}
}
return ret;
},
// arg is for internal usage only
map: function( elems, callback, arg ) {
var value,
i = 0,
length = elems.length,
isArray = isArraylike( elems ),
ret = [];
// Go through the array, translating each of the items to their
if ( isArray ) {
for ( ; i < length; i++ ) {
value = callback( elems[ i ], i, arg );
if ( value != null ) {
ret[ ret.length ] = value;
}
}
// Go through every key on the object,
} else {
for ( i in elems ) {
value = callback( elems[ i ], i, arg );
if ( value != null ) {
ret[ ret.length ] = value;
}
}
}
// Flatten any nested arrays
return core_concat.apply( [], ret );
},
// A global GUID counter for objects
guid: 1,
// Bind a function to a context, optionally partially applying any
// arguments.
proxy: function( fn, context ) {
var tmp, args, proxy;
if ( typeof context === "string" ) {
tmp = fn[ context ];
context = fn;
fn = tmp;
}
// Quick check to determine if target is callable, in the spec
// this throws a TypeError, but we will just return undefined.
if ( !jQuery.isFunction( fn ) ) {
return undefined;
}
// Simulated bind
args = core_slice.call( arguments, 2 );
proxy = function() {
return fn.apply( context || this, args.concat( core_slice.call( arguments ) ) );
};
// Set the guid of unique handler to the same of original handler, so it can be removed
proxy.guid = fn.guid = fn.guid || jQuery.guid++;
return proxy;
},
// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
access: function( elems, fn, key, value, chainable, emptyGet, raw ) {
var i = 0,
length = elems.length,
bulk = key == null;
// Sets many values
if ( jQuery.type( key ) === "object" ) {
chainable = true;
for ( i in key ) {
jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );
}
// Sets one value
} else if ( value !== undefined ) {
chainable = true;
if ( !jQuery.isFunction( value ) ) {
raw = true;
}
if ( bulk ) {
// Bulk operations run against the entire set
if ( raw ) {
fn.call( elems, value );
fn = null;
// ...except when executing function values
} else {
bulk = fn;
fn = function( elem, key, value ) {
return bulk.call( jQuery( elem ), value );
};
}
}
if ( fn ) {
for ( ; i < length; i++ ) {
fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
}
}
}
return chainable ?
elems :
// Gets
bulk ?
fn.call( elems ) :
length ? fn( elems[0], key ) : emptyGet;
},
now: Date.now,
// A method for quickly swapping in/out CSS properties to get correct calculations.
// Note: this method belongs to the css module but it's needed here for the support module.
// If support gets modularized, this method should be moved back to the css module.
swap: function( elem, options, callback, args ) {
var ret, name,
old = {};
// Remember the old values, and insert the new ones
for ( name in options ) {
old[ name ] = elem.style[ name ];
elem.style[ name ] = options[ name ];
}
ret = callback.apply( elem, args || [] );
// Revert the old values
for ( name in options ) {
elem.style[ name ] = old[ name ];
}
return ret;
}
});
jQuery.ready.promise = function( obj ) {
if ( !readyList ) {
readyList = jQuery.Deferred();
// Catch cases where $(document).ready() is called after the browser event has already occurred.
// we once tried to use readyState "interactive" here, but it caused issues like the one
// discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
if ( document.readyState === "complete" ) {
// Handle it asynchronously to allow scripts the opportunity to delay ready
setTimeout( jQuery.ready );
} else {
// Use the handy event callback
document.addEventListener( "DOMContentLoaded", completed, false );
// A fallback to window.onload, that will always work
window.addEventListener( "load", completed, false );
}
}
return readyList.promise( obj );
};
// Populate the class2type map
jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
class2type[ "[object " + name + "]" ] = name.toLowerCase();
});
function isArraylike( obj ) {
var length = obj.length,
type = jQuery.type( obj );
if ( jQuery.isWindow( obj ) ) {
return false;
}
if ( obj.nodeType === 1 && length ) {
return true;
}
return type === "array" || type !== "function" &&
( length === 0 ||
typeof length === "number" && length > 0 && ( length - 1 ) in obj );
}
// All jQuery objects should point back to these
rootjQuery = jQuery(document);
/*!
* Sizzle CSS Selector Engine v1.9.4-pre
* http://sizzlejs.com/
*
* Copyright 2013 jQuery Foundation, Inc. and other contributors
* Released under the MIT license
* http://jquery.org/license
*
* Date: 2013-06-03
*/
(function( window, undefined ) {
var i,
support,
cachedruns,
Expr,
getText,
isXML,
compile,
outermostContext,
sortInput,
// Local document vars
setDocument,
document,
docElem,
documentIsHTML,
rbuggyQSA,
rbuggyMatches,
matches,
contains,
// Instance-specific data
expando = "sizzle" + -(new Date()),
preferredDoc = window.document,
dirruns = 0,
done = 0,
classCache = createCache(),
tokenCache = createCache(),
compilerCache = createCache(),
hasDuplicate = false,
sortOrder = function( a, b ) {
if ( a === b ) {
hasDuplicate = true;
return 0;
}
return 0;
},
// General-purpose constants
strundefined = typeof undefined,
MAX_NEGATIVE = 1 << 31,
// Instance methods
hasOwn = ({}).hasOwnProperty,
arr = [],
pop = arr.pop,
push_native = arr.push,
push = arr.push,
slice = arr.slice,
// Use a stripped-down indexOf if we can't use a native one
indexOf = arr.indexOf || function( elem ) {
var i = 0,
len = this.length;
for ( ; i < len; i++ ) {
if ( this[i] === elem ) {
return i;
}
}
return -1;
},
booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
// Regular expressions
// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
whitespace = "[\\x20\\t\\r\\n\\f]",
// http://www.w3.org/TR/css3-syntax/#characters
characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
// Loosely modeled on CSS identifier characters
// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
identifier = characterEncoding.replace( "w", "w#" ),
// Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectors
attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +
"*(?:([*^$|!~]?=)" + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",
// Prefer arguments quoted,
// then not containing pseudos/brackets,
// then attribute selectors/non-parenthetical expressions,
// then anything else
// These preferences are here to reduce the number of selectors
// needing tokenize in the PSEUDO preFilter
pseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)",
// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
rsibling = new RegExp( whitespace + "*[+~]" ),
rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*)" + whitespace + "*\\]", "g" ),
rpseudo = new RegExp( pseudos ),
ridentifier = new RegExp( "^" + identifier + "$" ),
matchExpr = {
"ID": new RegExp( "^#(" + characterEncoding + ")" ),
"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
"ATTR": new RegExp( "^" + attributes ),
"PSEUDO": new RegExp( "^" + pseudos ),
"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
// For use in libraries implementing .is()
// We use this for POS matching in `select`
"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
},
rnative = /^[^{]+\{\s*\[native \w/,
// Easily-parseable/retrievable ID or TAG or CLASS selectors
rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
rinputs = /^(?:input|select|textarea|button)$/i,
rheader = /^h\d$/i,
rescape = /'|\\/g,
// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
funescape = function( _, escaped, escapedWhitespace ) {
var high = "0x" + escaped - 0x10000;
// NaN means non-codepoint
// Support: Firefox
// Workaround erroneous numeric interpretation of +"0x"
return high !== high || escapedWhitespace ?
escaped :
// BMP codepoint
high < 0 ?
String.fromCharCode( high + 0x10000 ) :
// Supplemental Plane codepoint (surrogate pair)
String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
};
// Optimize for push.apply( _, NodeList )
try {
push.apply(
(arr = slice.call( preferredDoc.childNodes )),
preferredDoc.childNodes
);
// Support: Android<4.0
// Detect silently failing push.apply
arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
push = { apply: arr.length ?
// Leverage slice if possible
function( target, els ) {
push_native.apply( target, slice.call(els) );
} :
// Support: IE<9
// Otherwise append directly
function( target, els ) {
var j = target.length,
i = 0;
// Can't trust NodeList.length
while ( (target[j++] = els[i++]) ) {}
target.length = j - 1;
}
};
}
function Sizzle( selector, context, results, seed ) {
var match, elem, m, nodeType,
// QSA vars
i, groups, old, nid, newContext, newSelector;
if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
setDocument( context );
}
context = context || document;
results = results || [];
if ( !selector || typeof selector !== "string" ) {
return results;
}
if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
return [];
}
if ( documentIsHTML && !seed ) {
// Shortcuts
if ( (match = rquickExpr.exec( selector )) ) {
// Speed-up: Sizzle("#ID")
if ( (m = match[1]) ) {
if ( nodeType === 9 ) {
elem = context.getElementById( m );
// Check parentNode to catch when Blackberry 4.6 returns
// nodes that are no longer in the document #6963
if ( elem && elem.parentNode ) {
// Handle the case where IE, Opera, and Webkit return items
// by name instead of ID
if ( elem.id === m ) {
results.push( elem );
return results;
}
} else {
return results;
}
} else {
// Context is not a document
if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
contains( context, elem ) && elem.id === m ) {
results.push( elem );
return results;
}
}
// Speed-up: Sizzle("TAG")
} else if ( match[2] ) {
push.apply( results, context.getElementsByTagName( selector ) );
return results;
// Speed-up: Sizzle(".CLASS")
} else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) {
push.apply( results, context.getElementsByClassName( m ) );
return results;
}
}
// QSA path
if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
nid = old = expando;
newContext = context;
newSelector = nodeType === 9 && selector;
// qSA works strangely on Element-rooted queries
// We can work around this by specifying an extra ID on the root
// and working up from there (Thanks to Andrew Dupont for the technique)
// IE 8 doesn't work on object elements
if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
groups = tokenize( selector );
if ( (old = context.getAttribute("id")) ) {
nid = old.replace( rescape, "\\$&" );
} else {
context.setAttribute( "id", nid );
}
nid = "[id='" + nid + "'] ";
i = groups.length;
while ( i-- ) {
groups[i] = nid + toSelector( groups[i] );
}
newContext = rsibling.test( selector ) && context.parentNode || context;
newSelector = groups.join(",");
}
if ( newSelector ) {
try {
push.apply( results,
newContext.querySelectorAll( newSelector )
);
return results;
} catch(qsaError) {
} finally {
if ( !old ) {
context.removeAttribute("id");
}
}
}
}
}
// All others
return select( selector.replace( rtrim, "$1" ), context, results, seed );
}
/**
* Create key-value caches of limited size
* @returns {Function(string, Object)} Returns the Object data after storing it on itself with
* property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
* deleting the oldest entry
*/
function createCache() {
var keys = [];
function cache( key, value ) {
// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
if ( keys.push( key += " " ) > Expr.cacheLength ) {
// Only keep the most recent entries
delete cache[ keys.shift() ];
}
return (cache[ key ] = value);
}
return cache;
}
/**
* Mark a function for special use by Sizzle
* @param {Function} fn The function to mark
*/
function markFunction( fn ) {
fn[ expando ] = true;
return fn;
}
/**
* Support testing using an element
* @param {Function} fn Passed the created div and expects a boolean result
*/
function assert( fn ) {
var div = document.createElement("div");
try {
return !!fn( div );
} catch (e) {
return false;
} finally {
// Remove from its parent by default
if ( div.parentNode ) {
div.parentNode.removeChild( div );
}
// release memory in IE
div = null;
}
}
/**
* Adds the same handler for all of the specified attrs
* @param {String} attrs Pipe-separated list of attributes
* @param {Function} handler The method that will be applied
*/
function addHandle( attrs, handler ) {
var arr = attrs.split("|"),
i = attrs.length;
while ( i-- ) {
Expr.attrHandle[ arr[i] ] = handler;
}
}
/**
* Checks document order of two siblings
* @param {Element} a
* @param {Element} b
* @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
*/
function siblingCheck( a, b ) {
var cur = b && a,
diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
( ~b.sourceIndex || MAX_NEGATIVE ) -
( ~a.sourceIndex || MAX_NEGATIVE );
// Use IE sourceIndex if available on both nodes
if ( diff ) {
return diff;
}
// Check if b follows a
if ( cur ) {
while ( (cur = cur.nextSibling) ) {
if ( cur === b ) {
return -1;
}
}
}
return a ? 1 : -1;
}
/**
* Returns a function to use in pseudos for input types
* @param {String} type
*/
function createInputPseudo( type ) {
return function( elem ) {
var name = elem.nodeName.toLowerCase();
return name === "input" && elem.type === type;
};
}
/**
* Returns a function to use in pseudos for buttons
* @param {String} type
*/
function createButtonPseudo( type ) {
return function( elem ) {
var name = elem.nodeName.toLowerCase();
return (name === "input" || name === "button") && elem.type === type;
};
}
/**
* Returns a function to use in pseudos for positionals
* @param {Function} fn
*/
function createPositionalPseudo( fn ) {
return markFunction(function( argument ) {
argument = +argument;
return markFunction(function( seed, matches ) {
var j,
matchIndexes = fn( [], seed.length, argument ),
i = matchIndexes.length;
// Match elements found at the specified indexes
while ( i-- ) {
if ( seed[ (j = matchIndexes[i]) ] ) {
seed[j] = !(matches[j] = seed[j]);
}
}
});
});
}
/**
* Detect xml
* @param {Element|Object} elem An element or a document
*/
isXML = Sizzle.isXML = function( elem ) {
// documentElement is verified for cases where it doesn't yet exist
// (such as loading iframes in IE - #4833)
var documentElement = elem && (elem.ownerDocument || elem).documentElement;
return documentElement ? documentElement.nodeName !== "HTML" : false;
};
// Expose support vars for convenience
support = Sizzle.support = {};
/**
* Sets document-related variables once based on the current document
* @param {Element|Object} [doc] An element or document object to use to set the document
* @returns {Object} Returns the current document
*/
setDocument = Sizzle.setDocument = function( node ) {
var doc = node ? node.ownerDocument || node : preferredDoc,
parent = doc.defaultView;
// If no document and documentElement is available, return
if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
return document;
}
// Set our document
document = doc;
docElem = doc.documentElement;
// Support tests
documentIsHTML = !isXML( doc );
// Support: IE>8
// If iframe document is assigned to "document" variable and if iframe has been reloaded,
// IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936
// IE6-8 do not support the defaultView property so parent will be undefined
if ( parent && parent.attachEvent && parent !== parent.top ) {
parent.attachEvent( "onbeforeunload", function() {
setDocument();
});
}
/* Attributes
---------------------------------------------------------------------- */
// Support: IE<8
// Verify that getAttribute really returns attributes and not properties (excepting IE8 booleans)
support.attributes = assert(function( div ) {
div.className = "i";
return !div.getAttribute("className");
});
/* getElement(s)By*
---------------------------------------------------------------------- */
// Check if getElementsByTagName("*") returns only elements
support.getElementsByTagName = assert(function( div ) {
div.appendChild( doc.createComment("") );
return !div.getElementsByTagName("*").length;
});
// Check if getElementsByClassName can be trusted
support.getElementsByClassName = assert(function( div ) {
div.innerHTML = "<div class='a'></div><div class='a i'></div>";
// Support: Safari<4
// Catch class over-caching
div.firstChild.className = "i";
// Support: Opera<10
// Catch gEBCN failure to find non-leading classes
return div.getElementsByClassName("i").length === 2;
});
// Support: IE<10
// Check if getElementById returns elements by name
// The broken getElementById methods don't pick up programatically-set names,
// so use a roundabout getElementsByName test
support.getById = assert(function( div ) {
docElem.appendChild( div ).id = expando;
return !doc.getElementsByName || !doc.getElementsByName( expando ).length;
});
// ID find and filter
if ( support.getById ) {
Expr.find["ID"] = function( id, context ) {
if ( typeof context.getElementById !== strundefined && documentIsHTML ) {
var m = context.getElementById( id );
// Check parentNode to catch when Blackberry 4.6 returns
// nodes that are no longer in the document #6963
return m && m.parentNode ? [m] : [];
}
};
Expr.filter["ID"] = function( id ) {
var attrId = id.replace( runescape, funescape );
return function( elem ) {
return elem.getAttribute("id") === attrId;
};
};
} else {
// Support: IE6/7
// getElementById is not reliable as a find shortcut
delete Expr.find["ID"];
Expr.filter["ID"] = function( id ) {
var attrId = id.replace( runescape, funescape );
return function( elem ) {
var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id");
return node && node.value === attrId;
};
};
}
// Tag
Expr.find["TAG"] = support.getElementsByTagName ?
function( tag, context ) {
if ( typeof context.getElementsByTagName !== strundefined ) {
return context.getElementsByTagName( tag );
}
} :
function( tag, context ) {
var elem,
tmp = [],
i = 0,
results = context.getElementsByTagName( tag );
// Filter out possible comments
if ( tag === "*" ) {
while ( (elem = results[i++]) ) {
if ( elem.nodeType === 1 ) {
tmp.push( elem );
}
}
return tmp;
}
return results;
};
// Class
Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
if ( typeof context.getElementsByClassName !== strundefined && documentIsHTML ) {
return context.getElementsByClassName( className );
}
};
/* QSA/matchesSelector
---------------------------------------------------------------------- */
// QSA and matchesSelector support
// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
rbuggyMatches = [];
// qSa(:focus) reports false when true (Chrome 21)
// We allow this because of a bug in IE8/9 that throws an error
// whenever `document.activeElement` is accessed on an iframe
// So, we allow :focus to pass through QSA all the time to avoid the IE error
// See http://bugs.jquery.com/ticket/13378
rbuggyQSA = [];
if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) {
// Build QSA regex
// Regex strategy adopted from Diego Perini
assert(function( div ) {
// Select is set to empty string on purpose
// This is to test IE's treatment of not explicitly
// setting a boolean content attribute,
// since its presence should be enough
// http://bugs.jquery.com/ticket/12359
div.innerHTML = "<select><option selected=''></option></select>";
// Support: IE8
// Boolean attributes and "value" are not treated correctly
if ( !div.querySelectorAll("[selected]").length ) {
rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
}
// Webkit/Opera - :checked should return selected option elements
// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
// IE8 throws error here and will not see later tests
if ( !div.querySelectorAll(":checked").length ) {
rbuggyQSA.push(":checked");
}
});
assert(function( div ) {
// Support: Opera 10-12/IE8
// ^= $= *= and empty values
// Should not select anything
// Support: Windows 8 Native Apps
// The type attribute is restricted during .innerHTML assignment
var input = doc.createElement("input");
input.setAttribute( "type", "hidden" );
div.appendChild( input ).setAttribute( "t", "" );
if ( div.querySelectorAll("[t^='']").length ) {
rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
}
// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
// IE8 throws error here and will not see later tests
if ( !div.querySelectorAll(":enabled").length ) {
rbuggyQSA.push( ":enabled", ":disabled" );
}
// Opera 10-11 does not throw on post-comma invalid pseudos
div.querySelectorAll("*,:x");
rbuggyQSA.push(",.*:");
});
}
if ( (support.matchesSelector = rnative.test( (matches = docElem.webkitMatchesSelector ||
docElem.mozMatchesSelector ||
docElem.oMatchesSelector ||
docElem.msMatchesSelector) )) ) {
assert(function( div ) {
// Check to see if it's possible to do matchesSelector
// on a disconnected node (IE 9)
support.disconnectedMatch = matches.call( div, "div" );
// This should fail with an exception
// Gecko does not error, returns false instead
matches.call( div, "[s!='']:x" );
rbuggyMatches.push( "!=", pseudos );
});
}
rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
/* Contains
---------------------------------------------------------------------- */
// Element contains another
// Purposefully does not implement inclusive descendent
// As in, an element does not contain itself
contains = rnative.test( docElem.contains ) || docElem.compareDocumentPosition ?
function( a, b ) {
var adown = a.nodeType === 9 ? a.documentElement : a,
bup = b && b.parentNode;
return a === bup || !!( bup && bup.nodeType === 1 && (
adown.contains ?
adown.contains( bup ) :
a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
));
} :
function( a, b ) {
if ( b ) {
while ( (b = b.parentNode) ) {
if ( b === a ) {
return true;
}
}
}
return false;
};
/* Sorting
---------------------------------------------------------------------- */
// Document order sorting
sortOrder = docElem.compareDocumentPosition ?
function( a, b ) {
// Flag for duplicate removal
if ( a === b ) {
hasDuplicate = true;
return 0;
}
var compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );
if ( compare ) {
// Disconnected nodes
if ( compare & 1 ||
(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
// Choose the first element that is related to our preferred document
if ( a === doc || contains(preferredDoc, a) ) {
return -1;
}
if ( b === doc || contains(preferredDoc, b) ) {
return 1;
}
// Maintain original order
return sortInput ?
( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :
0;
}
return compare & 4 ? -1 : 1;
}
// Not directly comparable, sort on existence of method
return a.compareDocumentPosition ? -1 : 1;
} :
function( a, b ) {
var cur,
i = 0,
aup = a.parentNode,
bup = b.parentNode,
ap = [ a ],
bp = [ b ];
// Exit early if the nodes are identical
if ( a === b ) {
hasDuplicate = true;
return 0;
// Parentless nodes are either documents or disconnected
} else if ( !aup || !bup ) {
return a === doc ? -1 :
b === doc ? 1 :
aup ? -1 :
bup ? 1 :
sortInput ?
( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :
0;
// If the nodes are siblings, we can do a quick check
} else if ( aup === bup ) {
return siblingCheck( a, b );
}
// Otherwise we need full lists of their ancestors for comparison
cur = a;
while ( (cur = cur.parentNode) ) {
ap.unshift( cur );
}
cur = b;
while ( (cur = cur.parentNode) ) {
bp.unshift( cur );
}
// Walk down the tree looking for a discrepancy
while ( ap[i] === bp[i] ) {
i++;
}
return i ?
// Do a sibling check if the nodes have a common ancestor
siblingCheck( ap[i], bp[i] ) :
// Otherwise nodes in our document sort first
ap[i] === preferredDoc ? -1 :
bp[i] === preferredDoc ? 1 :
0;
};
return doc;
};
Sizzle.matches = function( expr, elements ) {
return Sizzle( expr, null, null, elements );
};
Sizzle.matchesSelector = function( elem, expr ) {
// Set document vars if needed
if ( ( elem.ownerDocument || elem ) !== document ) {
setDocument( elem );
}
// Make sure that attribute selectors are quoted
expr = expr.replace( rattributeQuotes, "='$1']" );
if ( support.matchesSelector && documentIsHTML &&
( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {
try {
var ret = matches.call( elem, expr );
// IE 9's matchesSelector returns false on disconnected nodes
if ( ret || support.disconnectedMatch ||
// As well, disconnected nodes are said to be in a document
// fragment in IE 9
elem.document && elem.document.nodeType !== 11 ) {
return ret;
}
} catch(e) {}
}
return Sizzle( expr, document, null, [elem] ).length > 0;
};
Sizzle.contains = function( context, elem ) {
// Set document vars if needed
if ( ( context.ownerDocument || context ) !== document ) {
setDocument( context );
}
return contains( context, elem );
};
Sizzle.attr = function( elem, name ) {
// Set document vars if needed
if ( ( elem.ownerDocument || elem ) !== document ) {
setDocument( elem );
}
var fn = Expr.attrHandle[ name.toLowerCase() ],
// Don't get fooled by Object.prototype properties (jQuery #13807)
val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
fn( elem, name, !documentIsHTML ) :
undefined;
return val === undefined ?
support.attributes || !documentIsHTML ?
elem.getAttribute( name ) :
(val = elem.getAttributeNode(name)) && val.specified ?
val.value :
null :
val;
};
Sizzle.error = function( msg ) {
throw new Error( "Syntax error, unrecognized expression: " + msg );
};
/**
* Document sorting and removing duplicates
* @param {ArrayLike} results
*/
Sizzle.uniqueSort = function( results ) {
var elem,
duplicates = [],
j = 0,
i = 0;
// Unless we *know* we can detect duplicates, assume their presence
hasDuplicate = !support.detectDuplicates;
sortInput = !support.sortStable && results.slice( 0 );
results.sort( sortOrder );
if ( hasDuplicate ) {
while ( (elem = results[i++]) ) {
if ( elem === results[ i ] ) {
j = duplicates.push( i );
}
}
while ( j-- ) {
results.splice( duplicates[ j ], 1 );
}
}
return results;
};
/**
* Utility function for retrieving the text value of an array of DOM nodes
* @param {Array|Element} elem
*/
getText = Sizzle.getText = function( elem ) {
var node,
ret = "",
i = 0,
nodeType = elem.nodeType;
if ( !nodeType ) {
// If no nodeType, this is expected to be an array
for ( ; (node = elem[i]); i++ ) {
// Do not traverse comment nodes
ret += getText( node );
}
} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
// Use textContent for elements
// innerText usage removed for consistency of new lines (see #11153)
if ( typeof elem.textContent === "string" ) {
return elem.textContent;
} else {
// Traverse its children
for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
ret += getText( elem );
}
}
} else if ( nodeType === 3 || nodeType === 4 ) {
return elem.nodeValue;
}
// Do not include comment or processing instruction nodes
return ret;
};
Expr = Sizzle.selectors = {
// Can be adjusted by the user
cacheLength: 50,
createPseudo: markFunction,
match: matchExpr,
attrHandle: {},
find: {},
relative: {
">": { dir: "parentNode", first: true },
" ": { dir: "parentNode" },
"+": { dir: "previousSibling", first: true },
"~": { dir: "previousSibling" }
},
preFilter: {
"ATTR": function( match ) {
match[1] = match[1].replace( runescape, funescape );
// Move the given value to match[3] whether quoted or unquoted
match[3] = ( match[4] || match[5] || "" ).replace( runescape, funescape );
if ( match[2] === "~=" ) {
match[3] = " " + match[3] + " ";
}
return match.slice( 0, 4 );
},
"CHILD": function( match ) {
/* matches from matchExpr["CHILD"]
1 type (only|nth|...)
2 what (child|of-type)
3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
4 xn-component of xn+y argument ([+-]?\d*n|)
5 sign of xn-component
6 x of xn-component
7 sign of y-component
8 y of y-component
*/
match[1] = match[1].toLowerCase();
if ( match[1].slice( 0, 3 ) === "nth" ) {
// nth-* requires argument
if ( !match[3] ) {
Sizzle.error( match[0] );
}
// numeric x and y parameters for Expr.filter.CHILD
// remember that false/true cast respectively to 0/1
match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
// other types prohibit arguments
} else if ( match[3] ) {
Sizzle.error( match[0] );
}
return match;
},
"PSEUDO": function( match ) {
var excess,
unquoted = !match[5] && match[2];
if ( matchExpr["CHILD"].test( match[0] ) ) {
return null;
}
// Accept quoted arguments as-is
if ( match[3] && match[4] !== undefined ) {
match[2] = match[4];
// Strip excess characters from unquoted arguments
} else if ( unquoted && rpseudo.test( unquoted ) &&
// Get excess from tokenize (recursively)
(excess = tokenize( unquoted, true )) &&
// advance to the next closing parenthesis
(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
// excess is a negative index
match[0] = match[0].slice( 0, excess );
match[2] = unquoted.slice( 0, excess );
}
// Return only captures needed by the pseudo filter method (type and argument)
return match.slice( 0, 3 );
}
},
filter: {
"TAG": function( nodeNameSelector ) {
var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
return nodeNameSelector === "*" ?
function() { return true; } :
function( elem ) {
return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
};
},
"CLASS": function( className ) {
var pattern = classCache[ className + " " ];
return pattern ||
(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
classCache( className, function( elem ) {
return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== strundefined && elem.getAttribute("class") || "" );
});
},
"ATTR": function( name, operator, check ) {
return function( elem ) {
var result = Sizzle.attr( elem, name );
if ( result == null ) {
return operator === "!=";
}
if ( !operator ) {
return true;
}
result += "";
return operator === "=" ? result === check :
operator === "!=" ? result !== check :
operator === "^=" ? check && result.indexOf( check ) === 0 :
operator === "*=" ? check && result.indexOf( check ) > -1 :
operator === "$=" ? check && result.slice( -check.length ) === check :
operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 :
operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
false;
};
},
"CHILD": function( type, what, argument, first, last ) {
var simple = type.slice( 0, 3 ) !== "nth",
forward = type.slice( -4 ) !== "last",
ofType = what === "of-type";
return first === 1 && last === 0 ?
// Shortcut for :nth-*(n)
function( elem ) {
return !!elem.parentNode;
} :
function( elem, context, xml ) {
var cache, outerCache, node, diff, nodeIndex, start,
dir = simple !== forward ? "nextSibling" : "previousSibling",
parent = elem.parentNode,
name = ofType && elem.nodeName.toLowerCase(),
useCache = !xml && !ofType;
if ( parent ) {
// :(first|last|only)-(child|of-type)
if ( simple ) {
while ( dir ) {
node = elem;
while ( (node = node[ dir ]) ) {
if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {
return false;
}
}
// Reverse direction for :only-* (if we haven't yet done so)
start = dir = type === "only" && !start && "nextSibling";
}
return true;
}
start = [ forward ? parent.firstChild : parent.lastChild ];
// non-xml :nth-child(...) stores cache data on `parent`
if ( forward && useCache ) {
// Seek `elem` from a previously-cached index
outerCache = parent[ expando ] || (parent[ expando ] = {});
cache = outerCache[ type ] || [];
nodeIndex = cache[0] === dirruns && cache[1];
diff = cache[0] === dirruns && cache[2];
node = nodeIndex && parent.childNodes[ nodeIndex ];
while ( (node = ++nodeIndex && node && node[ dir ] ||
// Fallback to seeking `elem` from the start
(diff = nodeIndex = 0) || start.pop()) ) {
// When found, cache indexes on `parent` and break
if ( node.nodeType === 1 && ++diff && node === elem ) {
outerCache[ type ] = [ dirruns, nodeIndex, diff ];
break;
}
}
// Use previously-cached element index if available
} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
diff = cache[1];
// xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
} else {
// Use the same loop as above to seek `elem` from the start
while ( (node = ++nodeIndex && node && node[ dir ] ||
(diff = nodeIndex = 0) || start.pop()) ) {
if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {
// Cache the index of each encountered element
if ( useCache ) {
(node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];
}
if ( node === elem ) {
break;
}
}
}
}
// Incorporate the offset, then check against cycle size
diff -= last;
return diff === first || ( diff % first === 0 && diff / first >= 0 );
}
};
},
"PSEUDO": function( pseudo, argument ) {
// pseudo-class names are case-insensitive
// http://www.w3.org/TR/selectors/#pseudo-classes
// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
// Remember that setFilters inherits from pseudos
var args,
fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
Sizzle.error( "unsupported pseudo: " + pseudo );
// The user may use createPseudo to indicate that
// arguments are needed to create the filter function
// just as Sizzle does
if ( fn[ expando ] ) {
return fn( argument );
}
// But maintain support for old signatures
if ( fn.length > 1 ) {
args = [ pseudo, pseudo, "", argument ];
return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
markFunction(function( seed, matches ) {
var idx,
matched = fn( seed, argument ),
i = matched.length;
while ( i-- ) {
idx = indexOf.call( seed, matched[i] );
seed[ idx ] = !( matches[ idx ] = matched[i] );
}
}) :
function( elem ) {
return fn( elem, 0, args );
};
}
return fn;
}
},
pseudos: {
// Potentially complex pseudos
"not": markFunction(function( selector ) {
// Trim the selector passed to compile
// to avoid treating leading and trailing
// spaces as combinators
var input = [],
results = [],
matcher = compile( selector.replace( rtrim, "$1" ) );
return matcher[ expando ] ?
markFunction(function( seed, matches, context, xml ) {
var elem,
unmatched = matcher( seed, null, xml, [] ),
i = seed.length;
// Match elements unmatched by `matcher`
while ( i-- ) {
if ( (elem = unmatched[i]) ) {
seed[i] = !(matches[i] = elem);
}
}
}) :
function( elem, context, xml ) {
input[0] = elem;
matcher( input, null, xml, results );
return !results.pop();
};
}),
"has": markFunction(function( selector ) {
return function( elem ) {
return Sizzle( selector, elem ).length > 0;
};
}),
"contains": markFunction(function( text ) {
return function( elem ) {
return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
};
}),
// "Whether an element is represented by a :lang() selector
// is based solely on the element's language value
// being equal to the identifier C,
// or beginning with the identifier C immediately followed by "-".
// The matching of C against the element's language value is performed case-insensitively.
// The identifier C does not have to be a valid language name."
// http://www.w3.org/TR/selectors/#lang-pseudo
"lang": markFunction( function( lang ) {
// lang value must be a valid identifier
if ( !ridentifier.test(lang || "") ) {
Sizzle.error( "unsupported lang: " + lang );
}
lang = lang.replace( runescape, funescape ).toLowerCase();
return function( elem ) {
var elemLang;
do {
if ( (elemLang = documentIsHTML ?
elem.lang :
elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
elemLang = elemLang.toLowerCase();
return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
}
} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
return false;
};
}),
// Miscellaneous
"target": function( elem ) {
var hash = window.location && window.location.hash;
return hash && hash.slice( 1 ) === elem.id;
},
"root": function( elem ) {
return elem === docElem;
},
"focus": function( elem ) {
return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
},
// Boolean properties
"enabled": function( elem ) {
return elem.disabled === false;
},
"disabled": function( elem ) {
return elem.disabled === true;
},
"checked": function( elem ) {
// In CSS3, :checked should return both checked and selected elements
// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
var nodeName = elem.nodeName.toLowerCase();
return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
},
"selected": function( elem ) {
// Accessing this property makes selected-by-default
// options in Safari work properly
if ( elem.parentNode ) {
elem.parentNode.selectedIndex;
}
return elem.selected === true;
},
// Contents
"empty": function( elem ) {
// http://www.w3.org/TR/selectors/#empty-pseudo
// :empty is only affected by element nodes and content nodes(including text(3), cdata(4)),
// not comment, processing instructions, or others
// Thanks to Diego Perini for the nodeName shortcut
// Greater than "@" means alpha characters (specifically not starting with "#" or "?")
for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
if ( elem.nodeName > "@" || elem.nodeType === 3 || elem.nodeType === 4 ) {
return false;
}
}
return true;
},
"parent": function( elem ) {
return !Expr.pseudos["empty"]( elem );
},
// Element/input types
"header": function( elem ) {
return rheader.test( elem.nodeName );
},
"input": function( elem ) {
return rinputs.test( elem.nodeName );
},
"button": function( elem ) {
var name = elem.nodeName.toLowerCase();
return name === "input" && elem.type === "button" || name === "button";
},
"text": function( elem ) {
var attr;
// IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)
// use getAttribute instead to test this case
return elem.nodeName.toLowerCase() === "input" &&
elem.type === "text" &&
( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === elem.type );
},
// Position-in-collection
"first": createPositionalPseudo(function() {
return [ 0 ];
}),
"last": createPositionalPseudo(function( matchIndexes, length ) {
return [ length - 1 ];
}),
"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
return [ argument < 0 ? argument + length : argument ];
}),
"even": createPositionalPseudo(function( matchIndexes, length ) {
var i = 0;
for ( ; i < length; i += 2 ) {
matchIndexes.push( i );
}
return matchIndexes;
}),
"odd": createPositionalPseudo(function( matchIndexes, length ) {
var i = 1;
for ( ; i < length; i += 2 ) {
matchIndexes.push( i );
}
return matchIndexes;
}),
"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
var i = argument < 0 ? argument + length : argument;
for ( ; --i >= 0; ) {
matchIndexes.push( i );
}
return matchIndexes;
}),
"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
var i = argument < 0 ? argument + length : argument;
for ( ; ++i < length; ) {
matchIndexes.push( i );
}
return matchIndexes;
})
}
};
Expr.pseudos["nth"] = Expr.pseudos["eq"];
// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
Expr.pseudos[ i ] = createButtonPseudo( i );
}
// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();
function tokenize( selector, parseOnly ) {
var matched, match, tokens, type,
soFar, groups, preFilters,
cached = tokenCache[ selector + " " ];
if ( cached ) {
return parseOnly ? 0 : cached.slice( 0 );
}
soFar = selector;
groups = [];
preFilters = Expr.preFilter;
while ( soFar ) {
// Comma and first run
if ( !matched || (match = rcomma.exec( soFar )) ) {
if ( match ) {
// Don't consume trailing commas as valid
soFar = soFar.slice( match[0].length ) || soFar;
}
groups.push( tokens = [] );
}
matched = false;
// Combinators
if ( (match = rcombinators.exec( soFar )) ) {
matched = match.shift();
tokens.push({
value: matched,
// Cast descendant combinators to space
type: match[0].replace( rtrim, " " )
});
soFar = soFar.slice( matched.length );
}
// Filters
for ( type in Expr.filter ) {
if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
(match = preFilters[ type ]( match ))) ) {
matched = match.shift();
tokens.push({
value: matched,
type: type,
matches: match
});
soFar = soFar.slice( matched.length );
}
}
if ( !matched ) {
break;
}
}
// Return the length of the invalid excess
// if we're just parsing
// Otherwise, throw an error or return tokens
return parseOnly ?
soFar.length :
soFar ?
Sizzle.error( selector ) :
// Cache the tokens
tokenCache( selector, groups ).slice( 0 );
}
function toSelector( tokens ) {
var i = 0,
len = tokens.length,
selector = "";
for ( ; i < len; i++ ) {
selector += tokens[i].value;
}
return selector;
}
function addCombinator( matcher, combinator, base ) {
var dir = combinator.dir,
checkNonElements = base && dir === "parentNode",
doneName = done++;
return combinator.first ?
// Check against closest ancestor/preceding element
function( elem, context, xml ) {
while ( (elem = elem[ dir ]) ) {
if ( elem.nodeType === 1 || checkNonElements ) {
return matcher( elem, context, xml );
}
}
} :
// Check against all ancestor/preceding elements
function( elem, context, xml ) {
var data, cache, outerCache,
dirkey = dirruns + " " + doneName;
// We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
if ( xml ) {
while ( (elem = elem[ dir ]) ) {
if ( elem.nodeType === 1 || checkNonElements ) {
if ( matcher( elem, context, xml ) ) {
return true;
}
}
}
} else {
while ( (elem = elem[ dir ]) ) {
if ( elem.nodeType === 1 || checkNonElements ) {
outerCache = elem[ expando ] || (elem[ expando ] = {});
if ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {
if ( (data = cache[1]) === true || data === cachedruns ) {
return data === true;
}
} else {
cache = outerCache[ dir ] = [ dirkey ];
cache[1] = matcher( elem, context, xml ) || cachedruns;
if ( cache[1] === true ) {
return true;
}
}
}
}
}
};
}
function elementMatcher( matchers ) {
return matchers.length > 1 ?
function( elem, context, xml ) {
var i = matchers.length;
while ( i-- ) {
if ( !matchers[i]( elem, context, xml ) ) {
return false;
}
}
return true;
} :
matchers[0];
}
function condense( unmatched, map, filter, context, xml ) {
var elem,
newUnmatched = [],
i = 0,
len = unmatched.length,
mapped = map != null;
for ( ; i < len; i++ ) {
if ( (elem = unmatched[i]) ) {
if ( !filter || filter( elem, context, xml ) ) {
newUnmatched.push( elem );
if ( mapped ) {
map.push( i );
}
}
}
}
return newUnmatched;
}
function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
if ( postFilter && !postFilter[ expando ] ) {
postFilter = setMatcher( postFilter );
}
if ( postFinder && !postFinder[ expando ] ) {
postFinder = setMatcher( postFinder, postSelector );
}
return markFunction(function( seed, results, context, xml ) {
var temp, i, elem,
preMap = [],
postMap = [],
preexisting = results.length,
// Get initial elements from seed or context
elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
// Prefilter to get matcher input, preserving a map for seed-results synchronization
matcherIn = preFilter && ( seed || !selector ) ?
condense( elems, preMap, preFilter, context, xml ) :
elems,
matcherOut = matcher ?
// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
// ...intermediate processing is necessary
[] :
// ...otherwise use results directly
results :
matcherIn;
// Find primary matches
if ( matcher ) {
matcher( matcherIn, matcherOut, context, xml );
}
// Apply postFilter
if ( postFilter ) {
temp = condense( matcherOut, postMap );
postFilter( temp, [], context, xml );
// Un-match failing elements by moving them back to matcherIn
i = temp.length;
while ( i-- ) {
if ( (elem = temp[i]) ) {
matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
}
}
}
if ( seed ) {
if ( postFinder || preFilter ) {
if ( postFinder ) {
// Get the final matcherOut by condensing this intermediate into postFinder contexts
temp = [];
i = matcherOut.length;
while ( i-- ) {
if ( (elem = matcherOut[i]) ) {
// Restore matcherIn since elem is not yet a final match
temp.push( (matcherIn[i] = elem) );
}
}
postFinder( null, (matcherOut = []), temp, xml );
}
// Move matched elements from seed to results to keep them synchronized
i = matcherOut.length;
while ( i-- ) {
if ( (elem = matcherOut[i]) &&
(temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) {
seed[temp] = !(results[temp] = elem);
}
}
}
// Add elements to results, through postFinder if defined
} else {
matcherOut = condense(
matcherOut === results ?
matcherOut.splice( preexisting, matcherOut.length ) :
matcherOut
);
if ( postFinder ) {
postFinder( null, results, matcherOut, xml );
} else {
push.apply( results, matcherOut );
}
}
});
}
function matcherFromTokens( tokens ) {
var checkContext, matcher, j,
len = tokens.length,
leadingRelative = Expr.relative[ tokens[0].type ],
implicitRelative = leadingRelative || Expr.relative[" "],
i = leadingRelative ? 1 : 0,
// The foundational matcher ensures that elements are reachable from top-level context(s)
matchContext = addCombinator( function( elem ) {
return elem === checkContext;
}, implicitRelative, true ),
matchAnyContext = addCombinator( function( elem ) {
return indexOf.call( checkContext, elem ) > -1;
}, implicitRelative, true ),
matchers = [ function( elem, context, xml ) {
return ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
(checkContext = context).nodeType ?
matchContext( elem, context, xml ) :
matchAnyContext( elem, context, xml ) );
} ];
for ( ; i < len; i++ ) {
if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
} else {
matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
// Return special upon seeing a positional matcher
if ( matcher[ expando ] ) {
// Find the next relative operator (if any) for proper handling
j = ++i;
for ( ; j < len; j++ ) {
if ( Expr.relative[ tokens[j].type ] ) {
break;
}
}
return setMatcher(
i > 1 && elementMatcher( matchers ),
i > 1 && toSelector(
// If the preceding token was a descendant combinator, insert an implicit any-element `*`
tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
).replace( rtrim, "$1" ),
matcher,
i < j && matcherFromTokens( tokens.slice( i, j ) ),
j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
j < len && toSelector( tokens )
);
}
matchers.push( matcher );
}
}
return elementMatcher( matchers );
}
function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
// A counter to specify which element is currently being matched
var matcherCachedRuns = 0,
bySet = setMatchers.length > 0,
byElement = elementMatchers.length > 0,
superMatcher = function( seed, context, xml, results, expandContext ) {
var elem, j, matcher,
setMatched = [],
matchedCount = 0,
i = "0",
unmatched = seed && [],
outermost = expandContext != null,
contextBackup = outermostContext,
// We must always have either seed elements or context
elems = seed || byElement && Expr.find["TAG"]( "*", expandContext && context.parentNode || context ),
// Use integer dirruns iff this is the outermost matcher
dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1);
if ( outermost ) {
outermostContext = context !== document && context;
cachedruns = matcherCachedRuns;
}
// Add elements passing elementMatchers directly to results
// Keep `i` a string if there are no elements so `matchedCount` will be "00" below
for ( ; (elem = elems[i]) != null; i++ ) {
if ( byElement && elem ) {
j = 0;
while ( (matcher = elementMatchers[j++]) ) {
if ( matcher( elem, context, xml ) ) {
results.push( elem );
break;
}
}
if ( outermost ) {
dirruns = dirrunsUnique;
cachedruns = ++matcherCachedRuns;
}
}
// Track unmatched elements for set filters
if ( bySet ) {
// They will have gone through all possible matchers
if ( (elem = !matcher && elem) ) {
matchedCount--;
}
// Lengthen the array for every element, matched or not
if ( seed ) {
unmatched.push( elem );
}
}
}
// Apply set filters to unmatched elements
matchedCount += i;
if ( bySet && i !== matchedCount ) {
j = 0;
while ( (matcher = setMatchers[j++]) ) {
matcher( unmatched, setMatched, context, xml );
}
if ( seed ) {
// Reintegrate element matches to eliminate the need for sorting
if ( matchedCount > 0 ) {
while ( i-- ) {
if ( !(unmatched[i] || setMatched[i]) ) {
setMatched[i] = pop.call( results );
}
}
}
// Discard index placeholder values to get only actual matches
setMatched = condense( setMatched );
}
// Add matches to results
push.apply( results, setMatched );
// Seedless set matches succeeding multiple successful matchers stipulate sorting
if ( outermost && !seed && setMatched.length > 0 &&
( matchedCount + setMatchers.length ) > 1 ) {
Sizzle.uniqueSort( results );
}
}
// Override manipulation of globals by nested matchers
if ( outermost ) {
dirruns = dirrunsUnique;
outermostContext = contextBackup;
}
return unmatched;
};
return bySet ?
markFunction( superMatcher ) :
superMatcher;
}
compile = Sizzle.compile = function( selector, group /* Internal Use Only */ ) {
var i,
setMatchers = [],
elementMatchers = [],
cached = compilerCache[ selector + " " ];
if ( !cached ) {
// Generate a function of recursive functions that can be used to check each element
if ( !group ) {
group = tokenize( selector );
}
i = group.length;
while ( i-- ) {
cached = matcherFromTokens( group[i] );
if ( cached[ expando ] ) {
setMatchers.push( cached );
} else {
elementMatchers.push( cached );
}
}
// Cache the compiled function
cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
}
return cached;
};
function multipleContexts( selector, contexts, results ) {
var i = 0,
len = contexts.length;
for ( ; i < len; i++ ) {
Sizzle( selector, contexts[i], results );
}
return results;
}
function select( selector, context, results, seed ) {
var i, tokens, token, type, find,
match = tokenize( selector );
if ( !seed ) {
// Try to minimize operations if there is only one group
if ( match.length === 1 ) {
// Take a shortcut and set the context if the root selector is an ID
tokens = match[0] = match[0].slice( 0 );
if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
support.getById && context.nodeType === 9 && documentIsHTML &&
Expr.relative[ tokens[1].type ] ) {
context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
if ( !context ) {
return results;
}
selector = selector.slice( tokens.shift().value.length );
}
// Fetch a seed set for right-to-left matching
i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
while ( i-- ) {
token = tokens[i];
// Abort if we hit a combinator
if ( Expr.relative[ (type = token.type) ] ) {
break;
}
if ( (find = Expr.find[ type ]) ) {
// Search, expanding context for leading sibling combinators
if ( (seed = find(
token.matches[0].replace( runescape, funescape ),
rsibling.test( tokens[0].type ) && context.parentNode || context
)) ) {
// If seed is empty or no tokens remain, we can return early
tokens.splice( i, 1 );
selector = seed.length && toSelector( tokens );
if ( !selector ) {
push.apply( results, seed );
return results;
}
break;
}
}
}
}
}
// Compile and execute a filtering function
// Provide `match` to avoid retokenization if we modified the selector above
compile( selector, match )(
seed,
context,
!documentIsHTML,
results,
rsibling.test( selector )
);
return results;
}
// One-time assignments
// Sort stability
support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
// Support: Chrome<14
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = hasDuplicate;
// Initialize against the default document
setDocument();
// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert(function( div1 ) {
// Should return 1, but returns 4 (following)
return div1.compareDocumentPosition( document.createElement("div") ) & 1;
});
// Support: IE<8
// Prevent attribute/property "interpolation"
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( div ) {
div.innerHTML = "<a href='#'></a>";
return div.firstChild.getAttribute("href") === "#" ;
}) ) {
addHandle( "type|href|height|width", function( elem, name, isXML ) {
if ( !isXML ) {
return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
}
});
}
// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert(function( div ) {
div.innerHTML = "<input/>";
div.firstChild.setAttribute( "value", "" );
return div.firstChild.getAttribute( "value" ) === "";
}) ) {
addHandle( "value", function( elem, name, isXML ) {
if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
return elem.defaultValue;
}
});
}
// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert(function( div ) {
return div.getAttribute("disabled") == null;
}) ) {
addHandle( booleans, function( elem, name, isXML ) {
var val;
if ( !isXML ) {
return (val = elem.getAttributeNode( name )) && val.specified ?
val.value :
elem[ name ] === true ? name.toLowerCase() : null;
}
});
}
jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;
jQuery.expr[":"] = jQuery.expr.pseudos;
jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;
})( window );
// String to Object options format cache
var optionsCache = {};
// Convert String-formatted options into Object-formatted ones and store in cache
function createOptions( options ) {
var object = optionsCache[ options ] = {};
jQuery.each( options.match( core_rnotwhite ) || [], function( _, flag ) {
object[ flag ] = true;
});
return object;
}
/*
* Create a callback list using the following parameters:
*
* options: an optional list of space-separated options that will change how
* the callback list behaves or a more traditional option object
*
* By default a callback list will act like an event callback list and can be
* "fired" multiple times.
*
* Possible options:
*
* once: will ensure the callback list can only be fired once (like a Deferred)
*
* memory: will keep track of previous values and will call any callback added
* after the list has been fired right away with the latest "memorized"
* values (like a Deferred)
*
* unique: will ensure a callback can only be added once (no duplicate in the list)
*
* stopOnFalse: interrupt callings when a callback returns false
*
*/
jQuery.Callbacks = function( options ) {
// Convert options from String-formatted to Object-formatted if needed
// (we check in cache first)
options = typeof options === "string" ?
( optionsCache[ options ] || createOptions( options ) ) :
jQuery.extend( {}, options );
var // Last fire value (for non-forgettable lists)
memory,
// Flag to know if list was already fired
fired,
// Flag to know if list is currently firing
firing,
// First callback to fire (used internally by add and fireWith)
firingStart,
// End of the loop when firing
firingLength,
// Index of currently firing callback (modified by remove if needed)
firingIndex,
// Actual callback list
list = [],
// Stack of fire calls for repeatable lists
stack = !options.once && [],
// Fire callbacks
fire = function( data ) {
memory = options.memory && data;
fired = true;
firingIndex = firingStart || 0;
firingStart = 0;
firingLength = list.length;
firing = true;
for ( ; list && firingIndex < firingLength; firingIndex++ ) {
if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
memory = false; // To prevent further calls using add
break;
}
}
firing = false;
if ( list ) {
if ( stack ) {
if ( stack.length ) {
fire( stack.shift() );
}
} else if ( memory ) {
list = [];
} else {
self.disable();
}
}
},
// Actual Callbacks object
self = {
// Add a callback or a collection of callbacks to the list
add: function() {
if ( list ) {
// First, we save the current length
var start = list.length;
(function add( args ) {
jQuery.each( args, function( _, arg ) {
var type = jQuery.type( arg );
if ( type === "function" ) {
if ( !options.unique || !self.has( arg ) ) {
list.push( arg );
}
} else if ( arg && arg.length && type !== "string" ) {
// Inspect recursively
add( arg );
}
});
})( arguments );
// Do we need to add the callbacks to the
// current firing batch?
if ( firing ) {
firingLength = list.length;
// With memory, if we're not firing then
// we should call right away
} else if ( memory ) {
firingStart = start;
fire( memory );
}
}
return this;
},
// Remove a callback from the list
remove: function() {
if ( list ) {
jQuery.each( arguments, function( _, arg ) {
var index;
while( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
list.splice( index, 1 );
// Handle firing indexes
if ( firing ) {
if ( index <= firingLength ) {
firingLength--;
}
if ( index <= firingIndex ) {
firingIndex--;
}
}
}
});
}
return this;
},
// Check if a given callback is in the list.
// If no argument is given, return whether or not list has callbacks attached.
has: function( fn ) {
return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );
},
// Remove all callbacks from the list
empty: function() {
list = [];
firingLength = 0;
return this;
},
// Have the list do nothing anymore
disable: function() {
list = stack = memory = undefined;
return this;
},
// Is it disabled?
disabled: function() {
return !list;
},
// Lock the list in its current state
lock: function() {
stack = undefined;
if ( !memory ) {
self.disable();
}
return this;
},
// Is it locked?
locked: function() {
return !stack;
},
// Call all callbacks with the given context and arguments
fireWith: function( context, args ) {
if ( list && ( !fired || stack ) ) {
args = args || [];
args = [ context, args.slice ? args.slice() : args ];
if ( firing ) {
stack.push( args );
} else {
fire( args );
}
}
return this;
},
// Call all the callbacks with the given arguments
fire: function() {
self.fireWith( this, arguments );
return this;
},
// To know if the callbacks have already been called at least once
fired: function() {
return !!fired;
}
};
return self;
};
jQuery.extend({
Deferred: function( func ) {
var tuples = [
// action, add listener, listener list, final state
[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
[ "notify", "progress", jQuery.Callbacks("memory") ]
],
state = "pending",
promise = {
state: function() {
return state;
},
always: function() {
deferred.done( arguments ).fail( arguments );
return this;
},
then: function( /* fnDone, fnFail, fnProgress */ ) {
var fns = arguments;
return jQuery.Deferred(function( newDefer ) {
jQuery.each( tuples, function( i, tuple ) {
var action = tuple[ 0 ],
fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
// deferred[ done | fail | progress ] for forwarding actions to newDefer
deferred[ tuple[1] ](function() {
var returned = fn && fn.apply( this, arguments );
if ( returned && jQuery.isFunction( returned.promise ) ) {
returned.promise()
.done( newDefer.resolve )
.fail( newDefer.reject )
.progress( newDefer.notify );
} else {
newDefer[ action + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
}
});
});
fns = null;
}).promise();
},
// Get a promise for this deferred
// If obj is provided, the promise aspect is added to the object
promise: function( obj ) {
return obj != null ? jQuery.extend( obj, promise ) : promise;
}
},
deferred = {};
// Keep pipe for back-compat
promise.pipe = promise.then;
// Add list-specific methods
jQuery.each( tuples, function( i, tuple ) {
var list = tuple[ 2 ],
stateString = tuple[ 3 ];
// promise[ done | fail | progress ] = list.add
promise[ tuple[1] ] = list.add;
// Handle state
if ( stateString ) {
list.add(function() {
// state = [ resolved | rejected ]
state = stateString;
// [ reject_list | resolve_list ].disable; progress_list.lock
}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
}
// deferred[ resolve | reject | notify ]
deferred[ tuple[0] ] = function() {
deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
return this;
};
deferred[ tuple[0] + "With" ] = list.fireWith;
});
// Make the deferred a promise
promise.promise( deferred );
// Call given func if any
if ( func ) {
func.call( deferred, deferred );
}
// All done!
return deferred;
},
// Deferred helper
when: function( subordinate /* , ..., subordinateN */ ) {
var i = 0,
resolveValues = core_slice.call( arguments ),
length = resolveValues.length,
// the count of uncompleted subordinates
remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
// the master Deferred. If resolveValues consist of only a single Deferred, just use that.
deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
// Update function for both resolve and progress values
updateFunc = function( i, contexts, values ) {
return function( value ) {
contexts[ i ] = this;
values[ i ] = arguments.length > 1 ? core_slice.call( arguments ) : value;
if( values === progressValues ) {
deferred.notifyWith( contexts, values );
} else if ( !( --remaining ) ) {
deferred.resolveWith( contexts, values );
}
};
},
progressValues, progressContexts, resolveContexts;
// add listeners to Deferred subordinates; treat others as resolved
if ( length > 1 ) {
progressValues = new Array( length );
progressContexts = new Array( length );
resolveContexts = new Array( length );
for ( ; i < length; i++ ) {
if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
resolveValues[ i ].promise()
.done( updateFunc( i, resolveContexts, resolveValues ) )
.fail( deferred.reject )
.progress( updateFunc( i, progressContexts, progressValues ) );
} else {
--remaining;
}
}
}
// if we're not waiting on anything, resolve the master
if ( !remaining ) {
deferred.resolveWith( resolveContexts, resolveValues );
}
return deferred.promise();
}
});
jQuery.support = (function( support ) {
var input = document.createElement("input"),
fragment = document.createDocumentFragment(),
div = document.createElement("div"),
select = document.createElement("select"),
opt = select.appendChild( document.createElement("option") );
// Finish early in limited environments
if ( !input.type ) {
return support;
}
input.type = "checkbox";
// Support: Safari 5.1, iOS 5.1, Android 4.x, Android 2.3
// Check the default checkbox/radio value ("" on old WebKit; "on" elsewhere)
support.checkOn = input.value !== "";
// Must access the parent to make an option select properly
// Support: IE9, IE10
support.optSelected = opt.selected;
// Will be defined later
support.reliableMarginRight = true;
support.boxSizingReliable = true;
support.pixelPosition = false;
// Make sure checked status is properly cloned
// Support: IE9, IE10
input.checked = true;
support.noCloneChecked = input.cloneNode( true ).checked;
// Make sure that the options inside disabled selects aren't marked as disabled
// (WebKit marks them as disabled)
select.disabled = true;
support.optDisabled = !opt.disabled;
// Check if an input maintains its value after becoming a radio
// Support: IE9, IE10
input = document.createElement("input");
input.value = "t";
input.type = "radio";
support.radioValue = input.value === "t";
// #11217 - WebKit loses check when the name is after the checked attribute
input.setAttribute( "checked", "t" );
input.setAttribute( "name", "t" );
fragment.appendChild( input );
// Support: Safari 5.1, Android 4.x, Android 2.3
// old WebKit doesn't clone checked state correctly in fragments
support.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;
// Support: Firefox, Chrome, Safari
// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)
support.focusinBubbles = "onfocusin" in window;
div.style.backgroundClip = "content-box";
div.cloneNode( true ).style.backgroundClip = "";
support.clearCloneStyle = div.style.backgroundClip === "content-box";
// Run tests that need a body at doc ready
jQuery(function() {
var container, marginDiv,
// Support: Firefox, Android 2.3 (Prefixed box-sizing versions).
divReset = "padding:0;margin:0;border:0;display:block;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box",
body = document.getElementsByTagName("body")[ 0 ];
if ( !body ) {
// Return for frameset docs that don't have a body
return;
}
container = document.createElement("div");
container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";
// Check box-sizing and margin behavior.
body.appendChild( container ).appendChild( div );
div.innerHTML = "";
// Support: Firefox, Android 2.3 (Prefixed box-sizing versions).
div.style.cssText = "-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%";
// Workaround failing boxSizing test due to offsetWidth returning wrong value
// with some non-1 values of body zoom, ticket #13543
jQuery.swap( body, body.style.zoom != null ? { zoom: 1 } : {}, function() {
support.boxSizing = div.offsetWidth === 4;
});
// Use window.getComputedStyle because jsdom on node.js will break without it.
if ( window.getComputedStyle ) {
support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";
support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";
// Support: Android 2.3
// Check if div with explicit width and no margin-right incorrectly
// gets computed margin-right based on width of container. (#3333)
// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
marginDiv = div.appendChild( document.createElement("div") );
marginDiv.style.cssText = div.style.cssText = divReset;
marginDiv.style.marginRight = marginDiv.style.width = "0";
div.style.width = "1px";
support.reliableMarginRight =
!parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );
}
body.removeChild( container );
});
return support;
})( {} );
/*
Implementation Summary
1. Enforce API surface and semantic compatibility with 1.9.x branch
2. Improve the module's maintainability by reducing the storage
paths to a single mechanism.
3. Use the same single mechanism to support "private" and "user" data.
4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
5. Avoid exposing implementation details on user objects (eg. expando properties)
6. Provide a clear path for implementation upgrade to WeakMap in 2014
*/
var data_user, data_priv,
rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
rmultiDash = /([A-Z])/g;
function Data() {
// Support: Android < 4,
// Old WebKit does not have Object.preventExtensions/freeze method,
// return new empty object instead with no [[set]] accessor
Object.defineProperty( this.cache = {}, 0, {
get: function() {
return {};
}
});
this.expando = jQuery.expando + Math.random();
}
Data.uid = 1;
Data.accepts = function( owner ) {
// Accepts only:
// - Node
// - Node.ELEMENT_NODE
// - Node.DOCUMENT_NODE
// - Object
// - Any
return owner.nodeType ?
owner.nodeType === 1 || owner.nodeType === 9 : true;
};
Data.prototype = {
key: function( owner ) {
// We can accept data for non-element nodes in modern browsers,
// but we should not, see #8335.
// Always return the key for a frozen object.
if ( !Data.accepts( owner ) ) {
return 0;
}
var descriptor = {},
// Check if the owner object already has a cache key
unlock = owner[ this.expando ];
// If not, create one
if ( !unlock ) {
unlock = Data.uid++;
// Secure it in a non-enumerable, non-writable property
try {
descriptor[ this.expando ] = { value: unlock };
Object.defineProperties( owner, descriptor );
// Support: Android < 4
// Fallback to a less secure definition
} catch ( e ) {
descriptor[ this.expando ] = unlock;
jQuery.extend( owner, descriptor );
}
}
// Ensure the cache object
if ( !this.cache[ unlock ] ) {
this.cache[ unlock ] = {};
}
return unlock;
},
set: function( owner, data, value ) {
var prop,
// There may be an unlock assigned to this node,
// if there is no entry for this "owner", create one inline
// and set the unlock as though an owner entry had always existed
unlock = this.key( owner ),
cache = this.cache[ unlock ];
// Handle: [ owner, key, value ] args
if ( typeof data === "string" ) {
cache[ data ] = value;
// Handle: [ owner, { properties } ] args
} else {
// Fresh assignments by object are shallow copied
if ( jQuery.isEmptyObject( cache ) ) {
jQuery.extend( this.cache[ unlock ], data );
// Otherwise, copy the properties one-by-one to the cache object
} else {
for ( prop in data ) {
cache[ prop ] = data[ prop ];
}
}
}
return cache;
},
get: function( owner, key ) {
// Either a valid cache is found, or will be created.
// New caches will be created and the unlock returned,
// allowing direct access to the newly created
// empty data object. A valid owner object must be provided.
var cache = this.cache[ this.key( owner ) ];
return key === undefined ?
cache : cache[ key ];
},
access: function( owner, key, value ) {
var stored;
// In cases where either:
//
// 1. No key was specified
// 2. A string key was specified, but no value provided
//
// Take the "read" path and allow the get method to determine
// which value to return, respectively either:
//
// 1. The entire cache object
// 2. The data stored at the key
//
if ( key === undefined ||
((key && typeof key === "string") && value === undefined) ) {
stored = this.get( owner, key );
return stored !== undefined ?
stored : this.get( owner, jQuery.camelCase(key) );
}
// [*]When the key is not a string, or both a key and value
// are specified, set or extend (existing objects) with either:
//
// 1. An object of properties
// 2. A key and value
//
this.set( owner, key, value );
// Since the "set" path can have two possible entry points
// return the expected data based on which path was taken[*]
return value !== undefined ? value : key;
},
remove: function( owner, key ) {
var i, name, camel,
unlock = this.key( owner ),
cache = this.cache[ unlock ];
if ( key === undefined ) {
this.cache[ unlock ] = {};
} else {
// Support array or space separated string of keys
if ( jQuery.isArray( key ) ) {
// If "name" is an array of keys...
// When data is initially created, via ("key", "val") signature,
// keys will be converted to camelCase.
// Since there is no way to tell _how_ a key was added, remove
// both plain key and camelCase key. #12786
// This will only penalize the array argument path.
name = key.concat( key.map( jQuery.camelCase ) );
} else {
camel = jQuery.camelCase( key );
// Try the string as a key before any manipulation
if ( key in cache ) {
name = [ key, camel ];
} else {
// If a key with the spaces exists, use it.
// Otherwise, create an array by matching non-whitespace
name = camel;
name = name in cache ?
[ name ] : ( name.match( core_rnotwhite ) || [] );
}
}
i = name.length;
while ( i-- ) {
delete cache[ name[ i ] ];
}
}
},
hasData: function( owner ) {
return !jQuery.isEmptyObject(
this.cache[ owner[ this.expando ] ] || {}
);
},
discard: function( owner ) {
if ( owner[ this.expando ] ) {
delete this.cache[ owner[ this.expando ] ];
}
}
};
// These may be used throughout the jQuery core codebase
data_user = new Data();
data_priv = new Data();
jQuery.extend({
acceptData: Data.accepts,
hasData: function( elem ) {
return data_user.hasData( elem ) || data_priv.hasData( elem );
},
data: function( elem, name, data ) {
return data_user.access( elem, name, data );
},
removeData: function( elem, name ) {
data_user.remove( elem, name );
},
// TODO: Now that all calls to _data and _removeData have been replaced
// with direct calls to data_priv methods, these can be deprecated.
_data: function( elem, name, data ) {
return data_priv.access( elem, name, data );
},
_removeData: function( elem, name ) {
data_priv.remove( elem, name );
}
});
jQuery.fn.extend({
data: function( key, value ) {
var attrs, name,
elem = this[ 0 ],
i = 0,
data = null;
// Gets all values
if ( key === undefined ) {
if ( this.length ) {
data = data_user.get( elem );
if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) {
attrs = elem.attributes;
for ( ; i < attrs.length; i++ ) {
name = attrs[ i ].name;
if ( name.indexOf( "data-" ) === 0 ) {
name = jQuery.camelCase( name.slice(5) );
dataAttr( elem, name, data[ name ] );
}
}
data_priv.set( elem, "hasDataAttrs", true );
}
}
return data;
}
// Sets multiple values
if ( typeof key === "object" ) {
return this.each(function() {
data_user.set( this, key );
});
}
return jQuery.access( this, function( value ) {
var data,
camelKey = jQuery.camelCase( key );
// The calling jQuery object (element matches) is not empty
// (and therefore has an element appears at this[ 0 ]) and the
// `value` parameter was not undefined. An empty jQuery object
// will result in `undefined` for elem = this[ 0 ] which will
// throw an exception if an attempt to read a data cache is made.
if ( elem && value === undefined ) {
// Attempt to get data from the cache
// with the key as-is
data = data_user.get( elem, key );
if ( data !== undefined ) {
return data;
}
// Attempt to get data from the cache
// with the key camelized
data = data_user.get( elem, camelKey );
if ( data !== undefined ) {
return data;
}
// Attempt to "discover" the data in
// HTML5 custom data-* attrs
data = dataAttr( elem, camelKey, undefined );
if ( data !== undefined ) {
return data;
}
// We tried really hard, but the data doesn't exist.
return;
}
// Set the data...
this.each(function() {
// First, attempt to store a copy or reference of any
// data that might've been store with a camelCased key.
var data = data_user.get( this, camelKey );
// For HTML5 data-* attribute interop, we have to
// store property names with dashes in a camelCase form.
// This might not apply to all properties...*
data_user.set( this, camelKey, value );
// *... In the case of properties that might _actually_
// have dashes, we need to also store a copy of that
// unchanged property.
if ( key.indexOf("-") !== -1 && data !== undefined ) {
data_user.set( this, key, value );
}
});
}, null, value, arguments.length > 1, null, true );
},
removeData: function( key ) {
return this.each(function() {
data_user.remove( this, key );
});
}
});
function dataAttr( elem, key, data ) {
var name;
// If nothing was found internally, try to fetch any
// data from the HTML5 data-* attribute
if ( data === undefined && elem.nodeType === 1 ) {
name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
data = elem.getAttribute( name );
if ( typeof data === "string" ) {
try {
data = data === "true" ? true :
data === "false" ? false :
data === "null" ? null :
// Only convert to a number if it doesn't change the string
+data + "" === data ? +data :
rbrace.test( data ) ? JSON.parse( data ) :
data;
} catch( e ) {}
// Make sure we set the data so it isn't changed later
data_user.set( elem, key, data );
} else {
data = undefined;
}
}
return data;
}
jQuery.extend({
queue: function( elem, type, data ) {
var queue;
if ( elem ) {
type = ( type || "fx" ) + "queue";
queue = data_priv.get( elem, type );
// Speed up dequeue by getting out quickly if this is just a lookup
if ( data ) {
if ( !queue || jQuery.isArray( data ) ) {
queue = data_priv.access( elem, type, jQuery.makeArray(data) );
} else {
queue.push( data );
}
}
return queue || [];
}
},
dequeue: function( elem, type ) {
type = type || "fx";
var queue = jQuery.queue( elem, type ),
startLength = queue.length,
fn = queue.shift(),
hooks = jQuery._queueHooks( elem, type ),
next = function() {
jQuery.dequeue( elem, type );
};
// If the fx queue is dequeued, always remove the progress sentinel
if ( fn === "inprogress" ) {
fn = queue.shift();
startLength--;
}
if ( fn ) {
// Add a progress sentinel to prevent the fx queue from being
// automatically dequeued
if ( type === "fx" ) {
queue.unshift( "inprogress" );
}
// clear up the last queue stop function
delete hooks.stop;
fn.call( elem, next, hooks );
}
if ( !startLength && hooks ) {
hooks.empty.fire();
}
},
// not intended for public consumption - generates a queueHooks object, or returns the current one
_queueHooks: function( elem, type ) {
var key = type + "queueHooks";
return data_priv.get( elem, key ) || data_priv.access( elem, key, {
empty: jQuery.Callbacks("once memory").add(function() {
data_priv.remove( elem, [ type + "queue", key ] );
})
});
}
});
jQuery.fn.extend({
queue: function( type, data ) {
var setter = 2;
if ( typeof type !== "string" ) {
data = type;
type = "fx";
setter--;
}
if ( arguments.length < setter ) {
return jQuery.queue( this[0], type );
}
return data === undefined ?
this :
this.each(function() {
var queue = jQuery.queue( this, type, data );
// ensure a hooks for this queue
jQuery._queueHooks( this, type );
if ( type === "fx" && queue[0] !== "inprogress" ) {
jQuery.dequeue( this, type );
}
});
},
dequeue: function( type ) {
return this.each(function() {
jQuery.dequeue( this, type );
});
},
// Based off of the plugin by Clint Helfers, with permission.
// http://blindsignals.com/index.php/2009/07/jquery-delay/
delay: function( time, type ) {
time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
type = type || "fx";
return this.queue( type, function( next, hooks ) {
var timeout = setTimeout( next, time );
hooks.stop = function() {
clearTimeout( timeout );
};
});
},
clearQueue: function( type ) {
return this.queue( type || "fx", [] );
},
// Get a promise resolved when queues of a certain type
// are emptied (fx is the type by default)
promise: function( type, obj ) {
var tmp,
count = 1,
defer = jQuery.Deferred(),
elements = this,
i = this.length,
resolve = function() {
if ( !( --count ) ) {
defer.resolveWith( elements, [ elements ] );
}
};
if ( typeof type !== "string" ) {
obj = type;
type = undefined;
}
type = type || "fx";
while( i-- ) {
tmp = data_priv.get( elements[ i ], type + "queueHooks" );
if ( tmp && tmp.empty ) {
count++;
tmp.empty.add( resolve );
}
}
resolve();
return defer.promise( obj );
}
});
var nodeHook, boolHook,
rclass = /[\t\r\n\f]/g,
rreturn = /\r/g,
rfocusable = /^(?:input|select|textarea|button)$/i;
jQuery.fn.extend({
attr: function( name, value ) {
return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
},
removeAttr: function( name ) {
return this.each(function() {
jQuery.removeAttr( this, name );
});
},
prop: function( name, value ) {
return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
},
removeProp: function( name ) {
return this.each(function() {
delete this[ jQuery.propFix[ name ] || name ];
});
},
addClass: function( value ) {
var classes, elem, cur, clazz, j,
i = 0,
len = this.length,
proceed = typeof value === "string" && value;
if ( jQuery.isFunction( value ) ) {
return this.each(function( j ) {
jQuery( this ).addClass( value.call( this, j, this.className ) );
});
}
if ( proceed ) {
// The disjunction here is for better compressibility (see removeClass)
classes = ( value || "" ).match( core_rnotwhite ) || [];
for ( ; i < len; i++ ) {
elem = this[ i ];
cur = elem.nodeType === 1 && ( elem.className ?
( " " + elem.className + " " ).replace( rclass, " " ) :
" "
);
if ( cur ) {
j = 0;
while ( (clazz = classes[j++]) ) {
if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
cur += clazz + " ";
}
}
elem.className = jQuery.trim( cur );
}
}
}
return this;
},
removeClass: function( value ) {
var classes, elem, cur, clazz, j,
i = 0,
len = this.length,
proceed = arguments.length === 0 || typeof value === "string" && value;
if ( jQuery.isFunction( value ) ) {
return this.each(function( j ) {
jQuery( this ).removeClass( value.call( this, j, this.className ) );
});
}
if ( proceed ) {
classes = ( value || "" ).match( core_rnotwhite ) || [];
for ( ; i < len; i++ ) {
elem = this[ i ];
// This expression is here for better compressibility (see addClass)
cur = elem.nodeType === 1 && ( elem.className ?
( " " + elem.className + " " ).replace( rclass, " " ) :
""
);
if ( cur ) {
j = 0;
while ( (clazz = classes[j++]) ) {
// Remove *all* instances
while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
cur = cur.replace( " " + clazz + " ", " " );
}
}
elem.className = value ? jQuery.trim( cur ) : "";
}
}
}
return this;
},
toggleClass: function( value, stateVal ) {
var type = typeof value;
if ( typeof stateVal === "boolean" && type === "string" ) {
return stateVal ? this.addClass( value ) : this.removeClass( value );
}
if ( jQuery.isFunction( value ) ) {
return this.each(function( i ) {
jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
});
}
return this.each(function() {
if ( type === "string" ) {
// toggle individual class names
var className,
i = 0,
self = jQuery( this ),
classNames = value.match( core_rnotwhite ) || [];
while ( (className = classNames[ i++ ]) ) {
// check each className given, space separated list
if ( self.hasClass( className ) ) {
self.removeClass( className );
} else {
self.addClass( className );
}
}
// Toggle whole class name
} else if ( type === core_strundefined || type === "boolean" ) {
if ( this.className ) {
// store className if set
data_priv.set( this, "__className__", this.className );
}
// If the element has a class name or if we're passed "false",
// then remove the whole classname (if there was one, the above saved it).
// Otherwise bring back whatever was previously saved (if anything),
// falling back to the empty string if nothing was stored.
this.className = this.className || value === false ? "" : data_priv.get( this, "__className__" ) || "";
}
});
},
hasClass: function( selector ) {
var className = " " + selector + " ",
i = 0,
l = this.length;
for ( ; i < l; i++ ) {
if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
return true;
}
}
return false;
},
val: function( value ) {
var hooks, ret, isFunction,
elem = this[0];
if ( !arguments.length ) {
if ( elem ) {
hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
return ret;
}
ret = elem.value;
return typeof ret === "string" ?
// handle most common string cases
ret.replace(rreturn, "") :
// handle cases where value is null/undef or number
ret == null ? "" : ret;
}
return;
}
isFunction = jQuery.isFunction( value );
return this.each(function( i ) {
var val;
if ( this.nodeType !== 1 ) {
return;
}
if ( isFunction ) {
val = value.call( this, i, jQuery( this ).val() );
} else {
val = value;
}
// Treat null/undefined as ""; convert numbers to string
if ( val == null ) {
val = "";
} else if ( typeof val === "number" ) {
val += "";
} else if ( jQuery.isArray( val ) ) {
val = jQuery.map(val, function ( value ) {
return value == null ? "" : value + "";
});
}
hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
// If set returns undefined, fall back to normal setting
if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
this.value = val;
}
});
}
});
jQuery.extend({
valHooks: {
option: {
get: function( elem ) {
// attributes.value is undefined in Blackberry 4.7 but
// uses .value. See #6932
var val = elem.attributes.value;
return !val || val.specified ? elem.value : elem.text;
}
},
select: {
get: function( elem ) {
var value, option,
options = elem.options,
index = elem.selectedIndex,
one = elem.type === "select-one" || index < 0,
values = one ? null : [],
max = one ? index + 1 : options.length,
i = index < 0 ?
max :
one ? index : 0;
// Loop through all the selected options
for ( ; i < max; i++ ) {
option = options[ i ];
// IE6-9 doesn't update selected after form reset (#2551)
if ( ( option.selected || i === index ) &&
// Don't return options that are disabled or in a disabled optgroup
( jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null ) &&
( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
// Get the specific value for the option
value = jQuery( option ).val();
// We don't need an array for one selects
if ( one ) {
return value;
}
// Multi-Selects return an array
values.push( value );
}
}
return values;
},
set: function( elem, value ) {
var optionSet, option,
options = elem.options,
values = jQuery.makeArray( value ),
i = options.length;
while ( i-- ) {
option = options[ i ];
if ( (option.selected = jQuery.inArray( jQuery(option).val(), values ) >= 0) ) {
optionSet = true;
}
}
// force browsers to behave consistently when non-matching value is set
if ( !optionSet ) {
elem.selectedIndex = -1;
}
return values;
}
}
},
attr: function( elem, name, value ) {
var hooks, ret,
nType = elem.nodeType;
// don't get/set attributes on text, comment and attribute nodes
if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
return;
}
// Fallback to prop when attributes are not supported
if ( typeof elem.getAttribute === core_strundefined ) {
return jQuery.prop( elem, name, value );
}
// All attributes are lowercase
// Grab necessary hook if one is defined
if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
name = name.toLowerCase();
hooks = jQuery.attrHooks[ name ] ||
( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
}
if ( value !== undefined ) {
if ( value === null ) {
jQuery.removeAttr( elem, name );
} else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
return ret;
} else {
elem.setAttribute( name, value + "" );
return value;
}
} else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
return ret;
} else {
ret = jQuery.find.attr( elem, name );
// Non-existent attributes return null, we normalize to undefined
return ret == null ?
undefined :
ret;
}
},
removeAttr: function( elem, value ) {
var name, propName,
i = 0,
attrNames = value && value.match( core_rnotwhite );
if ( attrNames && elem.nodeType === 1 ) {
while ( (name = attrNames[i++]) ) {
propName = jQuery.propFix[ name ] || name;
// Boolean attributes get special treatment (#10870)
if ( jQuery.expr.match.bool.test( name ) ) {
// Set corresponding property to false
elem[ propName ] = false;
}
elem.removeAttribute( name );
}
}
},
attrHooks: {
type: {
set: function( elem, value ) {
if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
// Setting the type on a radio button after the value resets the value in IE6-9
// Reset value to default in case type is set after value during creation
var val = elem.value;
elem.setAttribute( "type", value );
if ( val ) {
elem.value = val;
}
return value;
}
}
}
},
propFix: {
"for": "htmlFor",
"class": "className"
},
prop: function( elem, name, value ) {
var ret, hooks, notxml,
nType = elem.nodeType;
// don't get/set properties on text, comment and attribute nodes
if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
return;
}
notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
if ( notxml ) {
// Fix name and attach hooks
name = jQuery.propFix[ name ] || name;
hooks = jQuery.propHooks[ name ];
}
if ( value !== undefined ) {
return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?
ret :
( elem[ name ] = value );
} else {
return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?
ret :
elem[ name ];
}
},
propHooks: {
tabIndex: {
get: function( elem ) {
return elem.hasAttribute( "tabindex" ) || rfocusable.test( elem.nodeName ) || elem.href ?
elem.tabIndex :
-1;
}
}
}
});
// Hooks for boolean attributes
boolHook = {
set: function( elem, value, name ) {
if ( value === false ) {
// Remove boolean attributes when set to false
jQuery.removeAttr( elem, name );
} else {
elem.setAttribute( name, name );
}
return name;
}
};
jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
var getter = jQuery.expr.attrHandle[ name ] || jQuery.find.attr;
jQuery.expr.attrHandle[ name ] = function( elem, name, isXML ) {
var fn = jQuery.expr.attrHandle[ name ],
ret = isXML ?
undefined :
/* jshint eqeqeq: false */
// Temporarily disable this handler to check existence
(jQuery.expr.attrHandle[ name ] = undefined) !=
getter( elem, name, isXML ) ?
name.toLowerCase() :
null;
// Restore handler
jQuery.expr.attrHandle[ name ] = fn;
return ret;
};
});
// Support: IE9+
// Selectedness for an option in an optgroup can be inaccurate
if ( !jQuery.support.optSelected ) {
jQuery.propHooks.selected = {
get: function( elem ) {
var parent = elem.parentNode;
if ( parent && parent.parentNode ) {
parent.parentNode.selectedIndex;
}
return null;
}
};
}
jQuery.each([
"tabIndex",
"readOnly",
"maxLength",
"cellSpacing",
"cellPadding",
"rowSpan",
"colSpan",
"useMap",
"frameBorder",
"contentEditable"
], function() {
jQuery.propFix[ this.toLowerCase() ] = this;
});
// Radios and checkboxes getter/setter
jQuery.each([ "radio", "checkbox" ], function() {
jQuery.valHooks[ this ] = {
set: function( elem, value ) {
if ( jQuery.isArray( value ) ) {
return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
}
}
};
if ( !jQuery.support.checkOn ) {
jQuery.valHooks[ this ].get = function( elem ) {
// Support: Webkit
// "" is returned instead of "on" if a value isn't specified
return elem.getAttribute("value") === null ? "on" : elem.value;
};
}
});
var rkeyEvent = /^key/,
rmouseEvent = /^(?:mouse|contextmenu)|click/,
rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
function returnTrue() {
return true;
}
function returnFalse() {
return false;
}
function safeActiveElement() {
try {
return document.activeElement;
} catch ( err ) { }
}
/*
* Helper functions for managing events -- not part of the public interface.
* Props to Dean Edwards' addEvent library for many of the ideas.
*/
jQuery.event = {
global: {},
add: function( elem, types, handler, data, selector ) {
var handleObjIn, eventHandle, tmp,
events, t, handleObj,
special, handlers, type, namespaces, origType,
elemData = data_priv.get( elem );
// Don't attach events to noData or text/comment nodes (but allow plain objects)
if ( !elemData ) {
return;
}
// Caller can pass in an object of custom data in lieu of the handler
if ( handler.handler ) {
handleObjIn = handler;
handler = handleObjIn.handler;
selector = handleObjIn.selector;
}
// Make sure that the handler has a unique ID, used to find/remove it later
if ( !handler.guid ) {
handler.guid = jQuery.guid++;
}
// Init the element's event structure and main handler, if this is the first
if ( !(events = elemData.events) ) {
events = elemData.events = {};
}
if ( !(eventHandle = elemData.handle) ) {
eventHandle = elemData.handle = function( e ) {
// Discard the second event of a jQuery.event.trigger() and
// when an event is called after a page has unloaded
return typeof jQuery !== core_strundefined && (!e || jQuery.event.triggered !== e.type) ?
jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
undefined;
};
// Add elem as a property of the handle fn to prevent a memory leak with IE non-native events
eventHandle.elem = elem;
}
// Handle multiple events separated by a space
types = ( types || "" ).match( core_rnotwhite ) || [""];
t = types.length;
while ( t-- ) {
tmp = rtypenamespace.exec( types[t] ) || [];
type = origType = tmp[1];
namespaces = ( tmp[2] || "" ).split( "." ).sort();
// There *must* be a type, no attaching namespace-only handlers
if ( !type ) {
continue;
}
// If event changes its type, use the special event handlers for the changed type
special = jQuery.event.special[ type ] || {};
// If selector defined, determine special event api type, otherwise given type
type = ( selector ? special.delegateType : special.bindType ) || type;
// Update special based on newly reset type
special = jQuery.event.special[ type ] || {};
// handleObj is passed to all event handlers
handleObj = jQuery.extend({
type: type,
origType: origType,
data: data,
handler: handler,
guid: handler.guid,
selector: selector,
needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
namespace: namespaces.join(".")
}, handleObjIn );
// Init the event handler queue if we're the first
if ( !(handlers = events[ type ]) ) {
handlers = events[ type ] = [];
handlers.delegateCount = 0;
// Only use addEventListener if the special events handler returns false
if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
if ( elem.addEventListener ) {
elem.addEventListener( type, eventHandle, false );
}
}
}
if ( special.add ) {
special.add.call( elem, handleObj );
if ( !handleObj.handler.guid ) {
handleObj.handler.guid = handler.guid;
}
}
// Add to the element's handler list, delegates in front
if ( selector ) {
handlers.splice( handlers.delegateCount++, 0, handleObj );
} else {
handlers.push( handleObj );
}
// Keep track of which events have ever been used, for event optimization
jQuery.event.global[ type ] = true;
}
// Nullify elem to prevent memory leaks in IE
elem = null;
},
// Detach an event or set of events from an element
remove: function( elem, types, handler, selector, mappedTypes ) {
var j, origCount, tmp,
events, t, handleObj,
special, handlers, type, namespaces, origType,
elemData = data_priv.hasData( elem ) && data_priv.get( elem );
if ( !elemData || !(events = elemData.events) ) {
return;
}
// Once for each type.namespace in types; type may be omitted
types = ( types || "" ).match( core_rnotwhite ) || [""];
t = types.length;
while ( t-- ) {
tmp = rtypenamespace.exec( types[t] ) || [];
type = origType = tmp[1];
namespaces = ( tmp[2] || "" ).split( "." ).sort();
// Unbind all events (on this namespace, if provided) for the element
if ( !type ) {
for ( type in events ) {
jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
}
continue;
}
special = jQuery.event.special[ type ] || {};
type = ( selector ? special.delegateType : special.bindType ) || type;
handlers = events[ type ] || [];
tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );
// Remove matching events
origCount = j = handlers.length;
while ( j-- ) {
handleObj = handlers[ j ];
if ( ( mappedTypes || origType === handleObj.origType ) &&
( !handler || handler.guid === handleObj.guid ) &&
( !tmp || tmp.test( handleObj.namespace ) ) &&
( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
handlers.splice( j, 1 );
if ( handleObj.selector ) {
handlers.delegateCount--;
}
if ( special.remove ) {
special.remove.call( elem, handleObj );
}
}
}
// Remove generic event handler if we removed something and no more handlers exist
// (avoids potential for endless recursion during removal of special event handlers)
if ( origCount && !handlers.length ) {
if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
jQuery.removeEvent( elem, type, elemData.handle );
}
delete events[ type ];
}
}
// Remove the expando if it's no longer used
if ( jQuery.isEmptyObject( events ) ) {
delete elemData.handle;
data_priv.remove( elem, "events" );
}
},
trigger: function( event, data, elem, onlyHandlers ) {
var i, cur, tmp, bubbleType, ontype, handle, special,
eventPath = [ elem || document ],
type = core_hasOwn.call( event, "type" ) ? event.type : event,
namespaces = core_hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];
cur = tmp = elem = elem || document;
// Don't do events on text and comment nodes
if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
return;
}
// focus/blur morphs to focusin/out; ensure we're not firing them right now
if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
return;
}
if ( type.indexOf(".") >= 0 ) {
// Namespaced trigger; create a regexp to match event type in handle()
namespaces = type.split(".");
type = namespaces.shift();
namespaces.sort();
}
ontype = type.indexOf(":") < 0 && "on" + type;
// Caller can pass in a jQuery.Event object, Object, or just an event type string
event = event[ jQuery.expando ] ?
event :
new jQuery.Event( type, typeof event === "object" && event );
// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
event.isTrigger = onlyHandlers ? 2 : 3;
event.namespace = namespaces.join(".");
event.namespace_re = event.namespace ?
new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
null;
// Clean up the event in case it is being reused
event.result = undefined;
if ( !event.target ) {
event.target = elem;
}
// Clone any incoming data and prepend the event, creating the handler arg list
data = data == null ?
[ event ] :
jQuery.makeArray( data, [ event ] );
// Allow special events to draw outside the lines
special = jQuery.event.special[ type ] || {};
if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
return;
}
// Determine event propagation path in advance, per W3C events spec (#9951)
// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
bubbleType = special.delegateType || type;
if ( !rfocusMorph.test( bubbleType + type ) ) {
cur = cur.parentNode;
}
for ( ; cur; cur = cur.parentNode ) {
eventPath.push( cur );
tmp = cur;
}
// Only add window if we got to document (e.g., not plain obj or detached DOM)
if ( tmp === (elem.ownerDocument || document) ) {
eventPath.push( tmp.defaultView || tmp.parentWindow || window );
}
}
// Fire handlers on the event path
i = 0;
while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {
event.type = i > 1 ?
bubbleType :
special.bindType || type;
// jQuery handler
handle = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" );
if ( handle ) {
handle.apply( cur, data );
}
// Native handler
handle = ontype && cur[ ontype ];
if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {
event.preventDefault();
}
}
event.type = type;
// If nobody prevented the default action, do it now
if ( !onlyHandlers && !event.isDefaultPrevented() ) {
if ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) &&
jQuery.acceptData( elem ) ) {
// Call a native DOM method on the target with the same name name as the event.
// Don't do default actions on window, that's where global variables be (#6170)
if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
// Don't re-trigger an onFOO event when we call its FOO() method
tmp = elem[ ontype ];
if ( tmp ) {
elem[ ontype ] = null;
}
// Prevent re-triggering of the same event, since we already bubbled it above
jQuery.event.triggered = type;
elem[ type ]();
jQuery.event.triggered = undefined;
if ( tmp ) {
elem[ ontype ] = tmp;
}
}
}
}
return event.result;
},
dispatch: function( event ) {
// Make a writable jQuery.Event from the native event object
event = jQuery.event.fix( event );
var i, j, ret, matched, handleObj,
handlerQueue = [],
args = core_slice.call( arguments ),
handlers = ( data_priv.get( this, "events" ) || {} )[ event.type ] || [],
special = jQuery.event.special[ event.type ] || {};
// Use the fix-ed jQuery.Event rather than the (read-only) native event
args[0] = event;
event.delegateTarget = this;
// Call the preDispatch hook for the mapped type, and let it bail if desired
if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
return;
}
// Determine handlers
handlerQueue = jQuery.event.handlers.call( this, event, handlers );
// Run delegates first; they may want to stop propagation beneath us
i = 0;
while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {
event.currentTarget = matched.elem;
j = 0;
while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {
// Triggered event must either 1) have no namespace, or
// 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).
if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {
event.handleObj = handleObj;
event.data = handleObj.data;
ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
.apply( matched.elem, args );
if ( ret !== undefined ) {
if ( (event.result = ret) === false ) {
event.preventDefault();
event.stopPropagation();
}
}
}
}
}
// Call the postDispatch hook for the mapped type
if ( special.postDispatch ) {
special.postDispatch.call( this, event );
}
return event.result;
},
handlers: function( event, handlers ) {
var i, matches, sel, handleObj,
handlerQueue = [],
delegateCount = handlers.delegateCount,
cur = event.target;
// Find delegate handlers
// Black-hole SVG <use> instance trees (#13180)
// Avoid non-left-click bubbling in Firefox (#3861)
if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
for ( ; cur !== this; cur = cur.parentNode || this ) {
// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
if ( cur.disabled !== true || event.type !== "click" ) {
matches = [];
for ( i = 0; i < delegateCount; i++ ) {
handleObj = handlers[ i ];
// Don't conflict with Object.prototype properties (#13203)
sel = handleObj.selector + " ";
if ( matches[ sel ] === undefined ) {
matches[ sel ] = handleObj.needsContext ?
jQuery( sel, this ).index( cur ) >= 0 :
jQuery.find( sel, this, null, [ cur ] ).length;
}
if ( matches[ sel ] ) {
matches.push( handleObj );
}
}
if ( matches.length ) {
handlerQueue.push({ elem: cur, handlers: matches });
}
}
}
}
// Add the remaining (directly-bound) handlers
if ( delegateCount < handlers.length ) {
handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });
}
return handlerQueue;
},
// Includes some event props shared by KeyEvent and MouseEvent
props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
fixHooks: {},
keyHooks: {
props: "char charCode key keyCode".split(" "),
filter: function( event, original ) {
// Add which for key events
if ( event.which == null ) {
event.which = original.charCode != null ? original.charCode : original.keyCode;
}
return event;
}
},
mouseHooks: {
props: "button buttons clientX clientY offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
filter: function( event, original ) {
var eventDoc, doc, body,
button = original.button;
// Calculate pageX/Y if missing and clientX/Y available
if ( event.pageX == null && original.clientX != null ) {
eventDoc = event.target.ownerDocument || document;
doc = eventDoc.documentElement;
body = eventDoc.body;
event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
event.pageY = original.clientY + ( doc && doc.scrollTop || body && body.scrollTop || 0 ) - ( doc && doc.clientTop || body && body.clientTop || 0 );
}
// Add which for click: 1 === left; 2 === middle; 3 === right
// Note: button is not normalized, so don't use it
if ( !event.which && button !== undefined ) {
event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
}
return event;
}
},
fix: function( event ) {
if ( event[ jQuery.expando ] ) {
return event;
}
// Create a writable copy of the event object and normalize some properties
var i, prop, copy,
type = event.type,
originalEvent = event,
fixHook = this.fixHooks[ type ];
if ( !fixHook ) {
this.fixHooks[ type ] = fixHook =
rmouseEvent.test( type ) ? this.mouseHooks :
rkeyEvent.test( type ) ? this.keyHooks :
{};
}
copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
event = new jQuery.Event( originalEvent );
i = copy.length;
while ( i-- ) {
prop = copy[ i ];
event[ prop ] = originalEvent[ prop ];
}
// Support: Cordova 2.5 (WebKit) (#13255)
// All events should have a target; Cordova deviceready doesn't
if ( !event.target ) {
event.target = document;
}
// Support: Safari 6.0+, Chrome < 28
// Target should not be a text node (#504, #13143)
if ( event.target.nodeType === 3 ) {
event.target = event.target.parentNode;
}
return fixHook.filter? fixHook.filter( event, originalEvent ) : event;
},
special: {
load: {
// Prevent triggered image.load events from bubbling to window.load
noBubble: true
},
focus: {
// Fire native event if possible so blur/focus sequence is correct
trigger: function() {
if ( this !== safeActiveElement() && this.focus ) {
this.focus();
return false;
}
},
delegateType: "focusin"
},
blur: {
trigger: function() {
if ( this === safeActiveElement() && this.blur ) {
this.blur();
return false;
}
},
delegateType: "focusout"
},
click: {
// For checkbox, fire native event so checked state will be right
trigger: function() {
if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {
this.click();
return false;
}
},
// For cross-browser consistency, don't fire native .click() on links
_default: function( event ) {
return jQuery.nodeName( event.target, "a" );
}
},
beforeunload: {
postDispatch: function( event ) {
// Support: Firefox 20+
// Firefox doesn't alert if the returnValue field is not set.
if ( event.result !== undefined ) {
event.originalEvent.returnValue = event.result;
}
}
}
},
simulate: function( type, elem, event, bubble ) {
// Piggyback on a donor event to simulate a different one.
// Fake originalEvent to avoid donor's stopPropagation, but if the
// simulated event prevents default then we do the same on the donor.
var e = jQuery.extend(
new jQuery.Event(),
event,
{
type: type,
isSimulated: true,
originalEvent: {}
}
);
if ( bubble ) {
jQuery.event.trigger( e, null, elem );
} else {
jQuery.event.dispatch.call( elem, e );
}
if ( e.isDefaultPrevented() ) {
event.preventDefault();
}
}
};
jQuery.removeEvent = function( elem, type, handle ) {
if ( elem.removeEventListener ) {
elem.removeEventListener( type, handle, false );
}
};
jQuery.Event = function( src, props ) {
// Allow instantiation without the 'new' keyword
if ( !(this instanceof jQuery.Event) ) {
return new jQuery.Event( src, props );
}
// Event object
if ( src && src.type ) {
this.originalEvent = src;
this.type = src.type;
// Events bubbling up the document may have been marked as prevented
// by a handler lower down the tree; reflect the correct value.
this.isDefaultPrevented = ( src.defaultPrevented ||
src.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;
// Event type
} else {
this.type = src;
}
// Put explicitly provided properties onto the event object
if ( props ) {
jQuery.extend( this, props );
}
// Create a timestamp if incoming event doesn't have one
this.timeStamp = src && src.timeStamp || jQuery.now();
// Mark it as fixed
this[ jQuery.expando ] = true;
};
// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
isDefaultPrevented: returnFalse,
isPropagationStopped: returnFalse,
isImmediatePropagationStopped: returnFalse,
preventDefault: function() {
var e = this.originalEvent;
this.isDefaultPrevented = returnTrue;
if ( e && e.preventDefault ) {
e.preventDefault();
}
},
stopPropagation: function() {
var e = this.originalEvent;
this.isPropagationStopped = returnTrue;
if ( e && e.stopPropagation ) {
e.stopPropagation();
}
},
stopImmediatePropagation: function() {
this.isImmediatePropagationStopped = returnTrue;
this.stopPropagation();
}
};
// Create mouseenter/leave events using mouseover/out and event-time checks
// Support: Chrome 15+
jQuery.each({
mouseenter: "mouseover",
mouseleave: "mouseout"
}, function( orig, fix ) {
jQuery.event.special[ orig ] = {
delegateType: fix,
bindType: fix,
handle: function( event ) {
var ret,
target = this,
related = event.relatedTarget,
handleObj = event.handleObj;
// For mousenter/leave call the handler if related is outside the target.
// NB: No relatedTarget if the mouse left/entered the browser window
if ( !related || (related !== target && !jQuery.contains( target, related )) ) {
event.type = handleObj.origType;
ret = handleObj.handler.apply( this, arguments );
event.type = fix;
}
return ret;
}
};
});
// Create "bubbling" focus and blur events
// Support: Firefox, Chrome, Safari
if ( !jQuery.support.focusinBubbles ) {
jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
// Attach a single capturing handler while someone wants focusin/focusout
var attaches = 0,
handler = function( event ) {
jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
};
jQuery.event.special[ fix ] = {
setup: function() {
if ( attaches++ === 0 ) {
document.addEventListener( orig, handler, true );
}
},
teardown: function() {
if ( --attaches === 0 ) {
document.removeEventListener( orig, handler, true );
}
}
};
});
}
jQuery.fn.extend({
on: function( types, selector, data, fn, /*INTERNAL*/ one ) {
var origFn, type;
// Types can be a map of types/handlers
if ( typeof types === "object" ) {
// ( types-Object, selector, data )
if ( typeof selector !== "string" ) {
// ( types-Object, data )
data = data || selector;
selector = undefined;
}
for ( type in types ) {
this.on( type, selector, data, types[ type ], one );
}
return this;
}
if ( data == null && fn == null ) {
// ( types, fn )
fn = selector;
data = selector = undefined;
} else if ( fn == null ) {
if ( typeof selector === "string" ) {
// ( types, selector, fn )
fn = data;
data = undefined;
} else {
// ( types, data, fn )
fn = data;
data = selector;
selector = undefined;
}
}
if ( fn === false ) {
fn = returnFalse;
} else if ( !fn ) {
return this;
}
if ( one === 1 ) {
origFn = fn;
fn = function( event ) {
// Can use an empty set, since event contains the info
jQuery().off( event );
return origFn.apply( this, arguments );
};
// Use same guid so caller can remove using origFn
fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
}
return this.each( function() {
jQuery.event.add( this, types, fn, data, selector );
});
},
one: function( types, selector, data, fn ) {
return this.on( types, selector, data, fn, 1 );
},
off: function( types, selector, fn ) {
var handleObj, type;
if ( types && types.preventDefault && types.handleObj ) {
// ( event ) dispatched jQuery.Event
handleObj = types.handleObj;
jQuery( types.delegateTarget ).off(
handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType,
handleObj.selector,
handleObj.handler
);
return this;
}
if ( typeof types === "object" ) {
// ( types-object [, selector] )
for ( type in types ) {
this.off( type, selector, types[ type ] );
}
return this;
}
if ( selector === false || typeof selector === "function" ) {
// ( types [, fn] )
fn = selector;
selector = undefined;
}
if ( fn === false ) {
fn = returnFalse;
}
return this.each(function() {
jQuery.event.remove( this, types, fn, selector );
});
},
trigger: function( type, data ) {
return this.each(function() {
jQuery.event.trigger( type, data, this );
});
},
triggerHandler: function( type, data ) {
var elem = this[0];
if ( elem ) {
return jQuery.event.trigger( type, data, elem, true );
}
}
});
var isSimple = /^.[^:#\[\.,]*$/,
rparentsprev = /^(?:parents|prev(?:Until|All))/,
rneedsContext = jQuery.expr.match.needsContext,
// methods guaranteed to produce a unique set when starting from a unique set
guaranteedUnique = {
children: true,
contents: true,
next: true,
prev: true
};
jQuery.fn.extend({
find: function( selector ) {
var i,
ret = [],
self = this,
len = self.length;
if ( typeof selector !== "string" ) {
return this.pushStack( jQuery( selector ).filter(function() {
for ( i = 0; i < len; i++ ) {
if ( jQuery.contains( self[ i ], this ) ) {
return true;
}
}
}) );
}
for ( i = 0; i < len; i++ ) {
jQuery.find( selector, self[ i ], ret );
}
// Needed because $( selector, context ) becomes $( context ).find( selector )
ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
ret.selector = this.selector ? this.selector + " " + selector : selector;
return ret;
},
has: function( target ) {
var targets = jQuery( target, this ),
l = targets.length;
return this.filter(function() {
var i = 0;
for ( ; i < l; i++ ) {
if ( jQuery.contains( this, targets[i] ) ) {
return true;
}
}
});
},
not: function( selector ) {
return this.pushStack( winnow(this, selector || [], true) );
},
filter: function( selector ) {
return this.pushStack( winnow(this, selector || [], false) );
},
is: function( selector ) {
return !!winnow(
this,
// If this is a positional/relative selector, check membership in the returned set
// so $("p:first").is("p:last") won't return true for a doc with two "p".
typeof selector === "string" && rneedsContext.test( selector ) ?
jQuery( selector ) :
selector || [],
false
).length;
},
closest: function( selectors, context ) {
var cur,
i = 0,
l = this.length,
matched = [],
pos = ( rneedsContext.test( selectors ) || typeof selectors !== "string" ) ?
jQuery( selectors, context || this.context ) :
0;
for ( ; i < l; i++ ) {
for ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) {
// Always skip document fragments
if ( cur.nodeType < 11 && (pos ?
pos.index(cur) > -1 :
// Don't pass non-elements to Sizzle
cur.nodeType === 1 &&
jQuery.find.matchesSelector(cur, selectors)) ) {
cur = matched.push( cur );
break;
}
}
}
return this.pushStack( matched.length > 1 ? jQuery.unique( matched ) : matched );
},
// Determine the position of an element within
// the matched set of elements
index: function( elem ) {
// No argument, return index in parent
if ( !elem ) {
return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
}
// index in selector
if ( typeof elem === "string" ) {
return core_indexOf.call( jQuery( elem ), this[ 0 ] );
}
// Locate the position of the desired element
return core_indexOf.call( this,
// If it receives a jQuery object, the first element is used
elem.jquery ? elem[ 0 ] : elem
);
},
add: function( selector, context ) {
var set = typeof selector === "string" ?
jQuery( selector, context ) :
jQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),
all = jQuery.merge( this.get(), set );
return this.pushStack( jQuery.unique(all) );
},
addBack: function( selector ) {
return this.add( selector == null ?
this.prevObject : this.prevObject.filter(selector)
);
}
});
function sibling( cur, dir ) {
while ( (cur = cur[dir]) && cur.nodeType !== 1 ) {}
return cur;
}
jQuery.each({
parent: function( elem ) {
var parent = elem.parentNode;
return parent && parent.nodeType !== 11 ? parent : null;
},
parents: function( elem ) {
return jQuery.dir( elem, "parentNode" );
},
parentsUntil: function( elem, i, until ) {
return jQuery.dir( elem, "parentNode", until );
},
next: function( elem ) {
return sibling( elem, "nextSibling" );
},
prev: function( elem ) {
return sibling( elem, "previousSibling" );
},
nextAll: function( elem ) {
return jQuery.dir( elem, "nextSibling" );
},
prevAll: function( elem ) {
return jQuery.dir( elem, "previousSibling" );
},
nextUntil: function( elem, i, until ) {
return jQuery.dir( elem, "nextSibling", until );
},
prevUntil: function( elem, i, until ) {
return jQuery.dir( elem, "previousSibling", until );
},
siblings: function( elem ) {
return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
},
children: function( elem ) {
return jQuery.sibling( elem.firstChild );
},
contents: function( elem ) {
return elem.contentDocument || jQuery.merge( [], elem.childNodes );
}
}, function( name, fn ) {
jQuery.fn[ name ] = function( until, selector ) {
var matched = jQuery.map( this, fn, until );
if ( name.slice( -5 ) !== "Until" ) {
selector = until;
}
if ( selector && typeof selector === "string" ) {
matched = jQuery.filter( selector, matched );
}
if ( this.length > 1 ) {
// Remove duplicates
if ( !guaranteedUnique[ name ] ) {
jQuery.unique( matched );
}
// Reverse order for parents* and prev-derivatives
if ( rparentsprev.test( name ) ) {
matched.reverse();
}
}
return this.pushStack( matched );
};
});
jQuery.extend({
filter: function( expr, elems, not ) {
var elem = elems[ 0 ];
if ( not ) {
expr = ":not(" + expr + ")";
}
return elems.length === 1 && elem.nodeType === 1 ?
jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
return elem.nodeType === 1;
}));
},
dir: function( elem, dir, until ) {
var matched = [],
truncate = until !== undefined;
while ( (elem = elem[ dir ]) && elem.nodeType !== 9 ) {
if ( elem.nodeType === 1 ) {
if ( truncate && jQuery( elem ).is( until ) ) {
break;
}
matched.push( elem );
}
}
return matched;
},
sibling: function( n, elem ) {
var matched = [];
for ( ; n; n = n.nextSibling ) {
if ( n.nodeType === 1 && n !== elem ) {
matched.push( n );
}
}
return matched;
}
});
// Implement the identical functionality for filter and not
function winnow( elements, qualifier, not ) {
if ( jQuery.isFunction( qualifier ) ) {
return jQuery.grep( elements, function( elem, i ) {
/* jshint -W018 */
return !!qualifier.call( elem, i, elem ) !== not;
});
}
if ( qualifier.nodeType ) {
return jQuery.grep( elements, function( elem ) {
return ( elem === qualifier ) !== not;
});
}
if ( typeof qualifier === "string" ) {
if ( isSimple.test( qualifier ) ) {
return jQuery.filter( qualifier, elements, not );
}
qualifier = jQuery.filter( qualifier, elements );
}
return jQuery.grep( elements, function( elem ) {
return ( core_indexOf.call( qualifier, elem ) >= 0 ) !== not;
});
}
var rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
rtagName = /<([\w:]+)/,
rhtml = /<|&#?\w+;/,
rnoInnerhtml = /<(?:script|style|link)/i,
manipulation_rcheckableType = /^(?:checkbox|radio)$/i,
// checked="checked" or checked
rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
rscriptType = /^$|\/(?:java|ecma)script/i,
rscriptTypeMasked = /^true\/(.*)/,
rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
// We have to close these tags to support XHTML (#13200)
wrapMap = {
// Support: IE 9
option: [ 1, "<select multiple='multiple'>", "</select>" ],
thead: [ 1, "<table>", "</table>" ],
col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
tr: [ 2, "<table><tbody>", "</tbody></table>" ],
td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],
_default: [ 0, "", "" ]
};
// Support: IE 9
wrapMap.optgroup = wrapMap.option;
wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;
jQuery.fn.extend({
text: function( value ) {
return jQuery.access( this, function( value ) {
return value === undefined ?
jQuery.text( this ) :
this.empty().append( ( this[ 0 ] && this[ 0 ].ownerDocument || document ).createTextNode( value ) );
}, null, value, arguments.length );
},
append: function() {
return this.domManip( arguments, function( elem ) {
if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
var target = manipulationTarget( this, elem );
target.appendChild( elem );
}
});
},
prepend: function() {
return this.domManip( arguments, function( elem ) {
if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
var target = manipulationTarget( this, elem );
target.insertBefore( elem, target.firstChild );
}
});
},
before: function() {
return this.domManip( arguments, function( elem ) {
if ( this.parentNode ) {
this.parentNode.insertBefore( elem, this );
}
});
},
after: function() {
return this.domManip( arguments, function( elem ) {
if ( this.parentNode ) {
this.parentNode.insertBefore( elem, this.nextSibling );
}
});
},
// keepData is for internal use only--do not document
remove: function( selector, keepData ) {
var elem,
elems = selector ? jQuery.filter( selector, this ) : this,
i = 0;
for ( ; (elem = elems[i]) != null; i++ ) {
if ( !keepData && elem.nodeType === 1 ) {
jQuery.cleanData( getAll( elem ) );
}
if ( elem.parentNode ) {
if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
setGlobalEval( getAll( elem, "script" ) );
}
elem.parentNode.removeChild( elem );
}
}
return this;
},
empty: function() {
var elem,
i = 0;
for ( ; (elem = this[i]) != null; i++ ) {
if ( elem.nodeType === 1 ) {
// Prevent memory leaks
jQuery.cleanData( getAll( elem, false ) );
// Remove any remaining nodes
elem.textContent = "";
}
}
return this;
},
clone: function( dataAndEvents, deepDataAndEvents ) {
dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
return this.map( function () {
return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
});
},
html: function( value ) {
return jQuery.access( this, function( value ) {
var elem = this[ 0 ] || {},
i = 0,
l = this.length;
if ( value === undefined && elem.nodeType === 1 ) {
return elem.innerHTML;
}
// See if we can take a shortcut and just use innerHTML
if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {
value = value.replace( rxhtmlTag, "<$1></$2>" );
try {
for ( ; i < l; i++ ) {
elem = this[ i ] || {};
// Remove element nodes and prevent memory leaks
if ( elem.nodeType === 1 ) {
jQuery.cleanData( getAll( elem, false ) );
elem.innerHTML = value;
}
}
elem = 0;
// If using innerHTML throws an exception, use the fallback method
} catch( e ) {}
}
if ( elem ) {
this.empty().append( value );
}
}, null, value, arguments.length );
},
replaceWith: function() {
var
// Snapshot the DOM in case .domManip sweeps something relevant into its fragment
args = jQuery.map( this, function( elem ) {
return [ elem.nextSibling, elem.parentNode ];
}),
i = 0;
// Make the changes, replacing each context element with the new content
this.domManip( arguments, function( elem ) {
var next = args[ i++ ],
parent = args[ i++ ];
if ( parent ) {
// Don't use the snapshot next if it has moved (#13810)
if ( next && next.parentNode !== parent ) {
next = this.nextSibling;
}
jQuery( this ).remove();
parent.insertBefore( elem, next );
}
// Allow new content to include elements from the context set
}, true );
// Force removal if there was no new content (e.g., from empty arguments)
return i ? this : this.remove();
},
detach: function( selector ) {
return this.remove( selector, true );
},
domManip: function( args, callback, allowIntersection ) {
// Flatten any nested arrays
args = core_concat.apply( [], args );
var fragment, first, scripts, hasScripts, node, doc,
i = 0,
l = this.length,
set = this,
iNoClone = l - 1,
value = args[ 0 ],
isFunction = jQuery.isFunction( value );
// We can't cloneNode fragments that contain checked, in WebKit
if ( isFunction || !( l <= 1 || typeof value !== "string" || jQuery.support.checkClone || !rchecked.test( value ) ) ) {
return this.each(function( index ) {
var self = set.eq( index );
if ( isFunction ) {
args[ 0 ] = value.call( this, index, self.html() );
}
self.domManip( args, callback, allowIntersection );
});
}
if ( l ) {
fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, !allowIntersection && this );
first = fragment.firstChild;
if ( fragment.childNodes.length === 1 ) {
fragment = first;
}
if ( first ) {
scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
hasScripts = scripts.length;
// Use the original fragment for the last item instead of the first because it can end up
// being emptied incorrectly in certain situations (#8070).
for ( ; i < l; i++ ) {
node = fragment;
if ( i !== iNoClone ) {
node = jQuery.clone( node, true, true );
// Keep references to cloned scripts for later restoration
if ( hasScripts ) {
// Support: QtWebKit
// jQuery.merge because core_push.apply(_, arraylike) throws
jQuery.merge( scripts, getAll( node, "script" ) );
}
}
callback.call( this[ i ], node, i );
}
if ( hasScripts ) {
doc = scripts[ scripts.length - 1 ].ownerDocument;
// Reenable scripts
jQuery.map( scripts, restoreScript );
// Evaluate executable scripts on first document insertion
for ( i = 0; i < hasScripts; i++ ) {
node = scripts[ i ];
if ( rscriptType.test( node.type || "" ) &&
!data_priv.access( node, "globalEval" ) && jQuery.contains( doc, node ) ) {
if ( node.src ) {
// Hope ajax is available...
jQuery._evalUrl( node.src );
} else {
jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) );
}
}
}
}
}
}
return this;
}
});
jQuery.each({
appendTo: "append",
prependTo: "prepend",
insertBefore: "before",
insertAfter: "after",
replaceAll: "replaceWith"
}, function( name, original ) {
jQuery.fn[ name ] = function( selector ) {
var elems,
ret = [],
insert = jQuery( selector ),
last = insert.length - 1,
i = 0;
for ( ; i <= last; i++ ) {
elems = i === last ? this : this.clone( true );
jQuery( insert[ i ] )[ original ]( elems );
// Support: QtWebKit
// .get() because core_push.apply(_, arraylike) throws
core_push.apply( ret, elems.get() );
}
return this.pushStack( ret );
};
});
jQuery.extend({
clone: function( elem, dataAndEvents, deepDataAndEvents ) {
var i, l, srcElements, destElements,
clone = elem.cloneNode( true ),
inPage = jQuery.contains( elem.ownerDocument, elem );
// Support: IE >= 9
// Fix Cloning issues
if ( !jQuery.support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && !jQuery.isXMLDoc( elem ) ) {
// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2
destElements = getAll( clone );
srcElements = getAll( elem );
for ( i = 0, l = srcElements.length; i < l; i++ ) {
fixInput( srcElements[ i ], destElements[ i ] );
}
}
// Copy the events from the original to the clone
if ( dataAndEvents ) {
if ( deepDataAndEvents ) {
srcElements = srcElements || getAll( elem );
destElements = destElements || getAll( clone );
for ( i = 0, l = srcElements.length; i < l; i++ ) {
cloneCopyEvent( srcElements[ i ], destElements[ i ] );
}
} else {
cloneCopyEvent( elem, clone );
}
}
// Preserve script evaluation history
destElements = getAll( clone, "script" );
if ( destElements.length > 0 ) {
setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
}
// Return the cloned set
return clone;
},
buildFragment: function( elems, context, scripts, selection ) {
var elem, tmp, tag, wrap, contains, j,
i = 0,
l = elems.length,
fragment = context.createDocumentFragment(),
nodes = [];
for ( ; i < l; i++ ) {
elem = elems[ i ];
if ( elem || elem === 0 ) {
// Add nodes directly
if ( jQuery.type( elem ) === "object" ) {
// Support: QtWebKit
// jQuery.merge because core_push.apply(_, arraylike) throws
jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
// Convert non-html into a text node
} else if ( !rhtml.test( elem ) ) {
nodes.push( context.createTextNode( elem ) );
// Convert html into DOM nodes
} else {
tmp = tmp || fragment.appendChild( context.createElement("div") );
// Deserialize a standard representation
tag = ( rtagName.exec( elem ) || ["", ""] )[ 1 ].toLowerCase();
wrap = wrapMap[ tag ] || wrapMap._default;
tmp.innerHTML = wrap[ 1 ] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[ 2 ];
// Descend through wrappers to the right content
j = wrap[ 0 ];
while ( j-- ) {
tmp = tmp.lastChild;
}
// Support: QtWebKit
// jQuery.merge because core_push.apply(_, arraylike) throws
jQuery.merge( nodes, tmp.childNodes );
// Remember the top-level container
tmp = fragment.firstChild;
// Fixes #12346
// Support: Webkit, IE
tmp.textContent = "";
}
}
}
// Remove wrapper from fragment
fragment.textContent = "";
i = 0;
while ( (elem = nodes[ i++ ]) ) {
// #4087 - If origin and destination elements are the same, and this is
// that element, do not do anything
if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
continue;
}
contains = jQuery.contains( elem.ownerDocument, elem );
// Append to fragment
tmp = getAll( fragment.appendChild( elem ), "script" );
// Preserve script evaluation history
if ( contains ) {
setGlobalEval( tmp );
}
// Capture executables
if ( scripts ) {
j = 0;
while ( (elem = tmp[ j++ ]) ) {
if ( rscriptType.test( elem.type || "" ) ) {
scripts.push( elem );
}
}
}
}
return fragment;
},
cleanData: function( elems ) {
var data, elem, events, type, key, j,
special = jQuery.event.special,
i = 0;
for ( ; (elem = elems[ i ]) !== undefined; i++ ) {
if ( Data.accepts( elem ) ) {
key = elem[ data_priv.expando ];
if ( key && (data = data_priv.cache[ key ]) ) {
events = Object.keys( data.events || {} );
if ( events.length ) {
for ( j = 0; (type = events[j]) !== undefined; j++ ) {
if ( special[ type ] ) {
jQuery.event.remove( elem, type );
// This is a shortcut to avoid jQuery.event.remove's overhead
} else {
jQuery.removeEvent( elem, type, data.handle );
}
}
}
if ( data_priv.cache[ key ] ) {
// Discard any remaining `private` data
delete data_priv.cache[ key ];
}
}
}
// Discard any remaining `user` data
delete data_user.cache[ elem[ data_user.expando ] ];
}
},
_evalUrl: function( url ) {
return jQuery.ajax({
url: url,
type: "GET",
dataType: "script",
async: false,
global: false,
"throws": true
});
}
});
// Support: 1.x compatibility
// Manipulating tables requires a tbody
function manipulationTarget( elem, content ) {
return jQuery.nodeName( elem, "table" ) &&
jQuery.nodeName( content.nodeType === 1 ? content : content.firstChild, "tr" ) ?
elem.getElementsByTagName("tbody")[0] ||
elem.appendChild( elem.ownerDocument.createElement("tbody") ) :
elem;
}
// Replace/restore the type attribute of script elements for safe DOM manipulation
function disableScript( elem ) {
elem.type = (elem.getAttribute("type") !== null) + "/" + elem.type;
return elem;
}
function restoreScript( elem ) {
var match = rscriptTypeMasked.exec( elem.type );
if ( match ) {
elem.type = match[ 1 ];
} else {
elem.removeAttribute("type");
}
return elem;
}
// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
var l = elems.length,
i = 0;
for ( ; i < l; i++ ) {
data_priv.set(
elems[ i ], "globalEval", !refElements || data_priv.get( refElements[ i ], "globalEval" )
);
}
}
function cloneCopyEvent( src, dest ) {
var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;
if ( dest.nodeType !== 1 ) {
return;
}
// 1. Copy private data: events, handlers, etc.
if ( data_priv.hasData( src ) ) {
pdataOld = data_priv.access( src );
pdataCur = data_priv.set( dest, pdataOld );
events = pdataOld.events;
if ( events ) {
delete pdataCur.handle;
pdataCur.events = {};
for ( type in events ) {
for ( i = 0, l = events[ type ].length; i < l; i++ ) {
jQuery.event.add( dest, type, events[ type ][ i ] );
}
}
}
}
// 2. Copy user data
if ( data_user.hasData( src ) ) {
udataOld = data_user.access( src );
udataCur = jQuery.extend( {}, udataOld );
data_user.set( dest, udataCur );
}
}
function getAll( context, tag ) {
var ret = context.getElementsByTagName ? context.getElementsByTagName( tag || "*" ) :
context.querySelectorAll ? context.querySelectorAll( tag || "*" ) :
[];
return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
jQuery.merge( [ context ], ret ) :
ret;
}
// Support: IE >= 9
function fixInput( src, dest ) {
var nodeName = dest.nodeName.toLowerCase();
// Fails to persist the checked state of a cloned checkbox or radio button.
if ( nodeName === "input" && manipulation_rcheckableType.test( src.type ) ) {
dest.checked = src.checked;
// Fails to return the selected option to the default selected state when cloning options
} else if ( nodeName === "input" || nodeName === "textarea" ) {
dest.defaultValue = src.defaultValue;
}
}
jQuery.fn.extend({
wrapAll: function( html ) {
var wrap;
if ( jQuery.isFunction( html ) ) {
return this.each(function( i ) {
jQuery( this ).wrapAll( html.call(this, i) );
});
}
if ( this[ 0 ] ) {
// The elements to wrap the target around
wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );
if ( this[ 0 ].parentNode ) {
wrap.insertBefore( this[ 0 ] );
}
wrap.map(function() {
var elem = this;
while ( elem.firstElementChild ) {
elem = elem.firstElementChild;
}
return elem;
}).append( this );
}
return this;
},
wrapInner: function( html ) {
if ( jQuery.isFunction( html ) ) {
return this.each(function( i ) {
jQuery( this ).wrapInner( html.call(this, i) );
});
}
return this.each(function() {
var self = jQuery( this ),
contents = self.contents();
if ( contents.length ) {
contents.wrapAll( html );
} else {
self.append( html );
}
});
},
wrap: function( html ) {
var isFunction = jQuery.isFunction( html );
return this.each(function( i ) {
jQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );
});
},
unwrap: function() {
return this.parent().each(function() {
if ( !jQuery.nodeName( this, "body" ) ) {
jQuery( this ).replaceWith( this.childNodes );
}
}).end();
}
});
var curCSS, iframe,
// swappable if display is none or starts with table except "table", "table-cell", or "table-caption"
// see here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
rdisplayswap = /^(none|table(?!-c[ea]).+)/,
rmargin = /^margin/,
rnumsplit = new RegExp( "^(" + core_pnum + ")(.*)$", "i" ),
rnumnonpx = new RegExp( "^(" + core_pnum + ")(?!px)[a-z%]+$", "i" ),
rrelNum = new RegExp( "^([+-])=(" + core_pnum + ")", "i" ),
elemdisplay = { BODY: "block" },
cssShow = { position: "absolute", visibility: "hidden", display: "block" },
cssNormalTransform = {
letterSpacing: 0,
fontWeight: 400
},
cssExpand = [ "Top", "Right", "Bottom", "Left" ],
cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
// return a css property mapped to a potentially vendor prefixed property
function vendorPropName( style, name ) {
// shortcut for names that are not vendor prefixed
if ( name in style ) {
return name;
}
// check for vendor prefixed names
var capName = name.charAt(0).toUpperCase() + name.slice(1),
origName = name,
i = cssPrefixes.length;
while ( i-- ) {
name = cssPrefixes[ i ] + capName;
if ( name in style ) {
return name;
}
}
return origName;
}
function isHidden( elem, el ) {
// isHidden might be called from jQuery#filter function;
// in that case, element will be second argument
elem = el || elem;
return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
}
// NOTE: we've included the "window" in window.getComputedStyle
// because jsdom on node.js will break without it.
function getStyles( elem ) {
return window.getComputedStyle( elem, null );
}
function showHide( elements, show ) {
var display, elem, hidden,
values = [],
index = 0,
length = elements.length;
for ( ; index < length; index++ ) {
elem = elements[ index ];
if ( !elem.style ) {
continue;
}
values[ index ] = data_priv.get( elem, "olddisplay" );
display = elem.style.display;
if ( show ) {
// Reset the inline display of this element to learn if it is
// being hidden by cascaded rules or not
if ( !values[ index ] && display === "none" ) {
elem.style.display = "";
}
// Set elements which have been overridden with display: none
// in a stylesheet to whatever the default browser style is
// for such an element
if ( elem.style.display === "" && isHidden( elem ) ) {
values[ index ] = data_priv.access( elem, "olddisplay", css_defaultDisplay(elem.nodeName) );
}
} else {
if ( !values[ index ] ) {
hidden = isHidden( elem );
if ( display && display !== "none" || !hidden ) {
data_priv.set( elem, "olddisplay", hidden ? display : jQuery.css(elem, "display") );
}
}
}
}
// Set the display of most of the elements in a second loop
// to avoid the constant reflow
for ( index = 0; index < length; index++ ) {
elem = elements[ index ];
if ( !elem.style ) {
continue;
}
if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
elem.style.display = show ? values[ index ] || "" : "none";
}
}
return elements;
}
jQuery.fn.extend({
css: function( name, value ) {
return jQuery.access( this, function( elem, name, value ) {
var styles, len,
map = {},
i = 0;
if ( jQuery.isArray( name ) ) {
styles = getStyles( elem );
len = name.length;
for ( ; i < len; i++ ) {
map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
}
return map;
}
return value !== undefined ?
jQuery.style( elem, name, value ) :
jQuery.css( elem, name );
}, name, value, arguments.length > 1 );
},
show: function() {
return showHide( this, true );
},
hide: function() {
return showHide( this );
},
toggle: function( state ) {
if ( typeof state === "boolean" ) {
return state ? this.show() : this.hide();
}
return this.each(function() {
if ( isHidden( this ) ) {
jQuery( this ).show();
} else {
jQuery( this ).hide();
}
});
}
});
jQuery.extend({
// Add in style property hooks for overriding the default
// behavior of getting and setting a style property
cssHooks: {
opacity: {
get: function( elem, computed ) {
if ( computed ) {
// We should always get a number back from opacity
var ret = curCSS( elem, "opacity" );
return ret === "" ? "1" : ret;
}
}
}
},
// Don't automatically add "px" to these possibly-unitless properties
cssNumber: {
"columnCount": true,
"fillOpacity": true,
"fontWeight": true,
"lineHeight": true,
"opacity": true,
"order": true,
"orphans": true,
"widows": true,
"zIndex": true,
"zoom": true
},
// Add in properties whose names you wish to fix before
// setting or getting the value
cssProps: {
// normalize float css property
"float": "cssFloat"
},
// Get and set the style property on a DOM Node
style: function( elem, name, value, extra ) {
// Don't set styles on text and comment nodes
if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
return;
}
// Make sure that we're working with the right name
var ret, type, hooks,
origName = jQuery.camelCase( name ),
style = elem.style;
name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );
// gets hook for the prefixed version
// followed by the unprefixed version
hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
// Check if we're setting a value
if ( value !== undefined ) {
type = typeof value;
// convert relative number strings (+= or -=) to relative numbers. #7345
if ( type === "string" && (ret = rrelNum.exec( value )) ) {
value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
// Fixes bug #9237
type = "number";
}
// Make sure that NaN and null values aren't set. See: #7116
if ( value == null || type === "number" && isNaN( value ) ) {
return;
}
// If a number was passed in, add 'px' to the (except for certain CSS properties)
if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
value += "px";
}
// Fixes #8908, it can be done more correctly by specifying setters in cssHooks,
// but it would mean to define eight (for every problematic property) identical functions
if ( !jQuery.support.clearCloneStyle && value === "" && name.indexOf("background") === 0 ) {
style[ name ] = "inherit";
}
// If a hook was provided, use that value, otherwise just set the specified value
if ( !hooks || !("set" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {
style[ name ] = value;
}
} else {
// If a hook was provided get the non-computed value from there
if ( hooks && "get" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {
return ret;
}
// Otherwise just get the value from the style object
return style[ name ];
}
},
css: function( elem, name, extra, styles ) {
var val, num, hooks,
origName = jQuery.camelCase( name );
// Make sure that we're working with the right name
name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );
// gets hook for the prefixed version
// followed by the unprefixed version
hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
// If a hook was provided get the computed value from there
if ( hooks && "get" in hooks ) {
val = hooks.get( elem, true, extra );
}
// Otherwise, if a way to get the computed value exists, use that
if ( val === undefined ) {
val = curCSS( elem, name, styles );
}
//convert "normal" to computed value
if ( val === "normal" && name in cssNormalTransform ) {
val = cssNormalTransform[ name ];
}
// Return, converting to number if forced or a qualifier was provided and val looks numeric
if ( extra === "" || extra ) {
num = parseFloat( val );
return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
}
return val;
}
});
curCSS = function( elem, name, _computed ) {
var width, minWidth, maxWidth,
computed = _computed || getStyles( elem ),
// Support: IE9
// getPropertyValue is only needed for .css('filter') in IE9, see #12537
ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,
style = elem.style;
if ( computed ) {
if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
ret = jQuery.style( elem, name );
}
// Support: Safari 5.1
// A tribute to the "awesome hack by Dean Edwards"
// Safari 5.1.7 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels
// this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values
if ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {
// Remember the original values
width = style.width;
minWidth = style.minWidth;
maxWidth = style.maxWidth;
// Put in the new values to get a computed value out
style.minWidth = style.maxWidth = style.width = ret;
ret = computed.width;
// Revert the changed values
style.width = width;
style.minWidth = minWidth;
style.maxWidth = maxWidth;
}
}
return ret;
};
function setPositiveNumber( elem, value, subtract ) {
var matches = rnumsplit.exec( value );
return matches ?
// Guard against undefined "subtract", e.g., when used as in cssHooks
Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
value;
}
function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
var i = extra === ( isBorderBox ? "border" : "content" ) ?
// If we already have the right measurement, avoid augmentation
4 :
// Otherwise initialize for horizontal or vertical properties
name === "width" ? 1 : 0,
val = 0;
for ( ; i < 4; i += 2 ) {
// both box models exclude margin, so add it if we want it
if ( extra === "margin" ) {
val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
}
if ( isBorderBox ) {
// border-box includes padding, so remove it if we want content
if ( extra === "content" ) {
val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
}
// at this point, extra isn't border nor margin, so remove border
if ( extra !== "margin" ) {
val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
}
} else {
// at this point, extra isn't content, so add padding
val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
// at this point, extra isn't content nor padding, so add border
if ( extra !== "padding" ) {
val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
}
}
}
return val;
}
function getWidthOrHeight( elem, name, extra ) {
// Start with offset property, which is equivalent to the border-box value
var valueIsBorderBox = true,
val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
styles = getStyles( elem ),
isBorderBox = jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
// some non-html elements return undefined for offsetWidth, so check for null/undefined
// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285
// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668
if ( val <= 0 || val == null ) {
// Fall back to computed then uncomputed css if necessary
val = curCSS( elem, name, styles );
if ( val < 0 || val == null ) {
val = elem.style[ name ];
}
// Computed unit is not pixels. Stop here and return.
if ( rnumnonpx.test(val) ) {
return val;
}
// we need the check for style in case a browser which returns unreliable values
// for getComputedStyle silently falls back to the reliable elem.style
valueIsBorderBox = isBorderBox && ( jQuery.support.boxSizingReliable || val === elem.style[ name ] );
// Normalize "", auto, and prepare for extra
val = parseFloat( val ) || 0;
}
// use the active box-sizing model to add/subtract irrelevant styles
return ( val +
augmentWidthOrHeight(
elem,
name,
extra || ( isBorderBox ? "border" : "content" ),
valueIsBorderBox,
styles
)
) + "px";
}
// Try to determine the default display value of an element
function css_defaultDisplay( nodeName ) {
var doc = document,
display = elemdisplay[ nodeName ];
if ( !display ) {
display = actualDisplay( nodeName, doc );
// If the simple way fails, read from inside an iframe
if ( display === "none" || !display ) {
// Use the already-created iframe if possible
iframe = ( iframe ||
jQuery("<iframe frameborder='0' width='0' height='0'/>")
.css( "cssText", "display:block !important" )
).appendTo( doc.documentElement );
// Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse
doc = ( iframe[0].contentWindow || iframe[0].contentDocument ).document;
doc.write("<!doctype html><html><body>");
doc.close();
display = actualDisplay( nodeName, doc );
iframe.detach();
}
// Store the correct default display
elemdisplay[ nodeName ] = display;
}
return display;
}
// Called ONLY from within css_defaultDisplay
function actualDisplay( name, doc ) {
var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
display = jQuery.css( elem[0], "display" );
elem.remove();
return display;
}
jQuery.each([ "height", "width" ], function( i, name ) {
jQuery.cssHooks[ name ] = {
get: function( elem, computed, extra ) {
if ( computed ) {
// certain elements can have dimension info if we invisibly show them
// however, it must have a current display style that would benefit from this
return elem.offsetWidth === 0 && rdisplayswap.test( jQuery.css( elem, "display" ) ) ?
jQuery.swap( elem, cssShow, function() {
return getWidthOrHeight( elem, name, extra );
}) :
getWidthOrHeight( elem, name, extra );
}
},
set: function( elem, value, extra ) {
var styles = extra && getStyles( elem );
return setPositiveNumber( elem, value, extra ?
augmentWidthOrHeight(
elem,
name,
extra,
jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
styles
) : 0
);
}
};
});
// These hooks cannot be added until DOM ready because the support test
// for it is not run until after DOM ready
jQuery(function() {
// Support: Android 2.3
if ( !jQuery.support.reliableMarginRight ) {
jQuery.cssHooks.marginRight = {
get: function( elem, computed ) {
if ( computed ) {
// Support: Android 2.3
// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
// Work around by temporarily setting element display to inline-block
return jQuery.swap( elem, { "display": "inline-block" },
curCSS, [ elem, "marginRight" ] );
}
}
};
}
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// getComputedStyle returns percent when specified for top/left/bottom/right
// rather than make the css module depend on the offset module, we just check for it here
if ( !jQuery.support.pixelPosition && jQuery.fn.position ) {
jQuery.each( [ "top", "left" ], function( i, prop ) {
jQuery.cssHooks[ prop ] = {
get: function( elem, computed ) {
if ( computed ) {
computed = curCSS( elem, prop );
// if curCSS returns percentage, fallback to offset
return rnumnonpx.test( computed ) ?
jQuery( elem ).position()[ prop ] + "px" :
computed;
}
}
};
});
}
});
if ( jQuery.expr && jQuery.expr.filters ) {
jQuery.expr.filters.hidden = function( elem ) {
// Support: Opera <= 12.12
// Opera reports offsetWidths and offsetHeights less than zero on some elements
return elem.offsetWidth <= 0 && elem.offsetHeight <= 0;
};
jQuery.expr.filters.visible = function( elem ) {
return !jQuery.expr.filters.hidden( elem );
};
}
// These hooks are used by animate to expand properties
jQuery.each({
margin: "",
padding: "",
border: "Width"
}, function( prefix, suffix ) {
jQuery.cssHooks[ prefix + suffix ] = {
expand: function( value ) {
var i = 0,
expanded = {},
// assumes a single number if not a string
parts = typeof value === "string" ? value.split(" ") : [ value ];
for ( ; i < 4; i++ ) {
expanded[ prefix + cssExpand[ i ] + suffix ] =
parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
}
return expanded;
}
};
if ( !rmargin.test( prefix ) ) {
jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
}
});
var r20 = /%20/g,
rbracket = /\[\]$/,
rCRLF = /\r?\n/g,
rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
rsubmittable = /^(?:input|select|textarea|keygen)/i;
jQuery.fn.extend({
serialize: function() {
return jQuery.param( this.serializeArray() );
},
serializeArray: function() {
return this.map(function(){
// Can add propHook for "elements" to filter or add form elements
var elements = jQuery.prop( this, "elements" );
return elements ? jQuery.makeArray( elements ) : this;
})
.filter(function(){
var type = this.type;
// Use .is(":disabled") so that fieldset[disabled] works
return this.name && !jQuery( this ).is( ":disabled" ) &&
rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
( this.checked || !manipulation_rcheckableType.test( type ) );
})
.map(function( i, elem ){
var val = jQuery( this ).val();
return val == null ?
null :
jQuery.isArray( val ) ?
jQuery.map( val, function( val ){
return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
}) :
{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
}).get();
}
});
//Serialize an array of form elements or a set of
//key/values into a query string
jQuery.param = function( a, traditional ) {
var prefix,
s = [],
add = function( key, value ) {
// If value is a function, invoke it and return its value
value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
};
// Set traditional to true for jQuery <= 1.3.2 behavior.
if ( traditional === undefined ) {
traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
}
// If an array was passed in, assume that it is an array of form elements.
if ( jQuery.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {
// Serialize the form elements
jQuery.each( a, function() {
add( this.name, this.value );
});
} else {
// If traditional, encode the "old" way (the way 1.3.2 or older
// did it), otherwise encode params recursively.
for ( prefix in a ) {
buildParams( prefix, a[ prefix ], traditional, add );
}
}
// Return the resulting serialization
return s.join( "&" ).replace( r20, "+" );
};
function buildParams( prefix, obj, traditional, add ) {
var name;
if ( jQuery.isArray( obj ) ) {
// Serialize array item.
jQuery.each( obj, function( i, v ) {
if ( traditional || rbracket.test( prefix ) ) {
// Treat each array item as a scalar.
add( prefix, v );
} else {
// Item is non-scalar (array or object), encode its numeric index.
buildParams( prefix + "[" + ( typeof v === "object" ? i : "" ) + "]", v, traditional, add );
}
});
} else if ( !traditional && jQuery.type( obj ) === "object" ) {
// Serialize object item.
for ( name in obj ) {
buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
}
} else {
// Serialize scalar item.
add( prefix, obj );
}
}
jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
"change select submit keydown keypress keyup error contextmenu").split(" "), function( i, name ) {
// Handle event binding
jQuery.fn[ name ] = function( data, fn ) {
return arguments.length > 0 ?
this.on( name, null, data, fn ) :
this.trigger( name );
};
});
jQuery.fn.extend({
hover: function( fnOver, fnOut ) {
return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
},
bind: function( types, data, fn ) {
return this.on( types, null, data, fn );
},
unbind: function( types, fn ) {
return this.off( types, null, fn );
},
delegate: function( selector, types, data, fn ) {
return this.on( types, selector, data, fn );
},
undelegate: function( selector, types, fn ) {
// ( namespace ) or ( selector, types [, fn] )
return arguments.length === 1 ? this.off( selector, "**" ) : this.off( types, selector || "**", fn );
}
});
var
// Document location
ajaxLocParts,
ajaxLocation,
ajax_nonce = jQuery.now(),
ajax_rquery = /\?/,
rhash = /#.*$/,
rts = /([?&])_=[^&]*/,
rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
// #7653, #8125, #8152: local protocol detection
rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
rnoContent = /^(?:GET|HEAD)$/,
rprotocol = /^\/\//,
rurl = /^([\w.+-]+:)(?:\/\/([^\/?#:]*)(?::(\d+)|)|)/,
// Keep a copy of the old load method
_load = jQuery.fn.load,
/* Prefilters
* 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
* 2) These are called:
* - BEFORE asking for a transport
* - AFTER param serialization (s.data is a string if s.processData is true)
* 3) key is the dataType
* 4) the catchall symbol "*" can be used
* 5) execution will start with transport dataType and THEN continue down to "*" if needed
*/
prefilters = {},
/* Transports bindings
* 1) key is the dataType
* 2) the catchall symbol "*" can be used
* 3) selection will start with transport dataType and THEN go to "*" if needed
*/
transports = {},
// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
allTypes = "*/".concat("*");
// #8138, IE may throw an exception when accessing
// a field from window.location if document.domain has been set
try {
ajaxLocation = location.href;
} catch( e ) {
// Use the href attribute of an A element
// since IE will modify it given document.location
ajaxLocation = document.createElement( "a" );
ajaxLocation.href = "";
ajaxLocation = ajaxLocation.href;
}
// Segment location into parts
ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {
// dataTypeExpression is optional and defaults to "*"
return function( dataTypeExpression, func ) {
if ( typeof dataTypeExpression !== "string" ) {
func = dataTypeExpression;
dataTypeExpression = "*";
}
var dataType,
i = 0,
dataTypes = dataTypeExpression.toLowerCase().match( core_rnotwhite ) || [];
if ( jQuery.isFunction( func ) ) {
// For each dataType in the dataTypeExpression
while ( (dataType = dataTypes[i++]) ) {
// Prepend if requested
if ( dataType[0] === "+" ) {
dataType = dataType.slice( 1 ) || "*";
(structure[ dataType ] = structure[ dataType ] || []).unshift( func );
// Otherwise append
} else {
(structure[ dataType ] = structure[ dataType ] || []).push( func );
}
}
}
};
}
// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {
var inspected = {},
seekingTransport = ( structure === transports );
function inspect( dataType ) {
var selected;
inspected[ dataType ] = true;
jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
if( typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[ dataTypeOrTransport ] ) {
options.dataTypes.unshift( dataTypeOrTransport );
inspect( dataTypeOrTransport );
return false;
} else if ( seekingTransport ) {
return !( selected = dataTypeOrTransport );
}
});
return selected;
}
return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
}
// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
function ajaxExtend( target, src ) {
var key, deep,
flatOptions = jQuery.ajaxSettings.flatOptions || {};
for ( key in src ) {
if ( src[ key ] !== undefined ) {
( flatOptions[ key ] ? target : ( deep || (deep = {}) ) )[ key ] = src[ key ];
}
}
if ( deep ) {
jQuery.extend( true, target, deep );
}
return target;
}
jQuery.fn.load = function( url, params, callback ) {
if ( typeof url !== "string" && _load ) {
return _load.apply( this, arguments );
}
var selector, type, response,
self = this,
off = url.indexOf(" ");
if ( off >= 0 ) {
selector = url.slice( off );
url = url.slice( 0, off );
}
// If it's a function
if ( jQuery.isFunction( params ) ) {
// We assume that it's the callback
callback = params;
params = undefined;
// Otherwise, build a param string
} else if ( params && typeof params === "object" ) {
type = "POST";
}
// If we have elements to modify, make the request
if ( self.length > 0 ) {
jQuery.ajax({
url: url,
// if "type" variable is undefined, then "GET" method will be used
type: type,
dataType: "html",
data: params
}).done(function( responseText ) {
// Save response for use in complete callback
response = arguments;
self.html( selector ?
// If a selector was specified, locate the right elements in a dummy div
// Exclude scripts to avoid IE 'Permission Denied' errors
jQuery("<div>").append( jQuery.parseHTML( responseText ) ).find( selector ) :
// Otherwise use the full result
responseText );
}).complete( callback && function( jqXHR, status ) {
self.each( callback, response || [ jqXHR.responseText, status, jqXHR ] );
});
}
return this;
};
// Attach a bunch of functions for handling common AJAX events
jQuery.each( [ "ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend" ], function( i, type ){
jQuery.fn[ type ] = function( fn ){
return this.on( type, fn );
};
});
jQuery.extend({
// Counter for holding the number of active queries
active: 0,
// Last-Modified header cache for next request
lastModified: {},
etag: {},
ajaxSettings: {
url: ajaxLocation,
type: "GET",
isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
global: true,
processData: true,
async: true,
contentType: "application/x-www-form-urlencoded; charset=UTF-8",
/*
timeout: 0,
data: null,
dataType: null,
username: null,
password: null,
cache: null,
throws: false,
traditional: false,
headers: {},
*/
accepts: {
"*": allTypes,
text: "text/plain",
html: "text/html",
xml: "application/xml, text/xml",
json: "application/json, text/javascript"
},
contents: {
xml: /xml/,
html: /html/,
json: /json/
},
responseFields: {
xml: "responseXML",
text: "responseText",
json: "responseJSON"
},
// Data converters
// Keys separate source (or catchall "*") and destination types with a single space
converters: {
// Convert anything to text
"* text": String,
// Text to html (true = no transformation)
"text html": true,
// Evaluate text as a json expression
"text json": jQuery.parseJSON,
// Parse text as xml
"text xml": jQuery.parseXML
},
// For options that shouldn't be deep extended:
// you can add your own custom options here if
// and when you create one that shouldn't be
// deep extended (see ajaxExtend)
flatOptions: {
url: true,
context: true
}
},
// Creates a full fledged settings object into target
// with both ajaxSettings and settings fields.
// If target is omitted, writes into ajaxSettings.
ajaxSetup: function( target, settings ) {
return settings ?
// Building a settings object
ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :
// Extending ajaxSettings
ajaxExtend( jQuery.ajaxSettings, target );
},
ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
ajaxTransport: addToPrefiltersOrTransports( transports ),
// Main method
ajax: function( url, options ) {
// If url is an object, simulate pre-1.5 signature
if ( typeof url === "object" ) {
options = url;
url = undefined;
}
// Force options to be an object
options = options || {};
var transport,
// URL without anti-cache param
cacheURL,
// Response headers
responseHeadersString,
responseHeaders,
// timeout handle
timeoutTimer,
// Cross-domain detection vars
parts,
// To know if global events are to be dispatched
fireGlobals,
// Loop variable
i,
// Create the final options object
s = jQuery.ajaxSetup( {}, options ),
// Callbacks context
callbackContext = s.context || s,
// Context for global events is callbackContext if it is a DOM node or jQuery collection
globalEventContext = s.context && ( callbackContext.nodeType || callbackContext.jquery ) ?
jQuery( callbackContext ) :
jQuery.event,
// Deferreds
deferred = jQuery.Deferred(),
completeDeferred = jQuery.Callbacks("once memory"),
// Status-dependent callbacks
statusCode = s.statusCode || {},
// Headers (they are sent all at once)
requestHeaders = {},
requestHeadersNames = {},
// The jqXHR state
state = 0,
// Default abort message
strAbort = "canceled",
// Fake xhr
jqXHR = {
readyState: 0,
// Builds headers hashtable if needed
getResponseHeader: function( key ) {
var match;
if ( state === 2 ) {
if ( !responseHeaders ) {
responseHeaders = {};
while ( (match = rheaders.exec( responseHeadersString )) ) {
responseHeaders[ match[1].toLowerCase() ] = match[ 2 ];
}
}
match = responseHeaders[ key.toLowerCase() ];
}
return match == null ? null : match;
},
// Raw string
getAllResponseHeaders: function() {
return state === 2 ? responseHeadersString : null;
},
// Caches the header
setRequestHeader: function( name, value ) {
var lname = name.toLowerCase();
if ( !state ) {
name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
requestHeaders[ name ] = value;
}
return this;
},
// Overrides response content-type header
overrideMimeType: function( type ) {
if ( !state ) {
s.mimeType = type;
}
return this;
},
// Status-dependent callbacks
statusCode: function( map ) {
var code;
if ( map ) {
if ( state < 2 ) {
for ( code in map ) {
// Lazy-add the new callback in a way that preserves old ones
statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
}
} else {
// Execute the appropriate callbacks
jqXHR.always( map[ jqXHR.status ] );
}
}
return this;
},
// Cancel the request
abort: function( statusText ) {
var finalText = statusText || strAbort;
if ( transport ) {
transport.abort( finalText );
}
done( 0, finalText );
return this;
}
};
// Attach deferreds
deferred.promise( jqXHR ).complete = completeDeferred.add;
jqXHR.success = jqXHR.done;
jqXHR.error = jqXHR.fail;
// Remove hash character (#7531: and string promotion)
// Add protocol if not provided (prefilters might expect it)
// Handle falsy url in the settings object (#10093: consistency with old signature)
// We also use the url parameter if available
s.url = ( ( url || s.url || ajaxLocation ) + "" ).replace( rhash, "" )
.replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
// Alias method option to type as per ticket #12004
s.type = options.method || options.type || s.method || s.type;
// Extract dataTypes list
s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( core_rnotwhite ) || [""];
// A cross-domain request is in order when we have a protocol:host:port mismatch
if ( s.crossDomain == null ) {
parts = rurl.exec( s.url.toLowerCase() );
s.crossDomain = !!( parts &&
( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==
( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) )
);
}
// Convert data if not already a string
if ( s.data && s.processData && typeof s.data !== "string" ) {
s.data = jQuery.param( s.data, s.traditional );
}
// Apply prefilters
inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );
// If request was aborted inside a prefilter, stop there
if ( state === 2 ) {
return jqXHR;
}
// We can fire global events as of now if asked to
fireGlobals = s.global;
// Watch for a new set of requests
if ( fireGlobals && jQuery.active++ === 0 ) {
jQuery.event.trigger("ajaxStart");
}
// Uppercase the type
s.type = s.type.toUpperCase();
// Determine if request has content
s.hasContent = !rnoContent.test( s.type );
// Save the URL in case we're toying with the If-Modified-Since
// and/or If-None-Match header later on
cacheURL = s.url;
// More options handling for requests with no content
if ( !s.hasContent ) {
// If data is available, append data to url
if ( s.data ) {
cacheURL = ( s.url += ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
// #9682: remove data so that it's not used in an eventual retry
delete s.data;
}
// Add anti-cache in url if needed
if ( s.cache === false ) {
s.url = rts.test( cacheURL ) ?
// If there is already a '_' parameter, set its value
cacheURL.replace( rts, "$1_=" + ajax_nonce++ ) :
// Otherwise add one to the end
cacheURL + ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ajax_nonce++;
}
}
// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
if ( s.ifModified ) {
if ( jQuery.lastModified[ cacheURL ] ) {
jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
}
if ( jQuery.etag[ cacheURL ] ) {
jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
}
}
// Set the correct header, if data is being sent
if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
jqXHR.setRequestHeader( "Content-Type", s.contentType );
}
// Set the Accepts header for the server, depending on the dataType
jqXHR.setRequestHeader(
"Accept",
s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[0] ] ?
s.accepts[ s.dataTypes[0] ] + ( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
s.accepts[ "*" ]
);
// Check for headers option
for ( i in s.headers ) {
jqXHR.setRequestHeader( i, s.headers[ i ] );
}
// Allow custom headers/mimetypes and early abort
if ( s.beforeSend && ( s.beforeSend.call( callbackContext, jqXHR, s ) === false || state === 2 ) ) {
// Abort if not done already and return
return jqXHR.abort();
}
// aborting is no longer a cancellation
strAbort = "abort";
// Install callbacks on deferreds
for ( i in { success: 1, error: 1, complete: 1 } ) {
jqXHR[ i ]( s[ i ] );
}
// Get transport
transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );
// If no transport, we auto-abort
if ( !transport ) {
done( -1, "No Transport" );
} else {
jqXHR.readyState = 1;
// Send global event
if ( fireGlobals ) {
globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
}
// Timeout
if ( s.async && s.timeout > 0 ) {
timeoutTimer = setTimeout(function() {
jqXHR.abort("timeout");
}, s.timeout );
}
try {
state = 1;
transport.send( requestHeaders, done );
} catch ( e ) {
// Propagate exception as error if not done
if ( state < 2 ) {
done( -1, e );
// Simply rethrow otherwise
} else {
throw e;
}
}
}
// Callback for when everything is done
function done( status, nativeStatusText, responses, headers ) {
var isSuccess, success, error, response, modified,
statusText = nativeStatusText;
// Called once
if ( state === 2 ) {
return;
}
// State is "done" now
state = 2;
// Clear timeout if it exists
if ( timeoutTimer ) {
clearTimeout( timeoutTimer );
}
// Dereference transport for early garbage collection
// (no matter how long the jqXHR object will be used)
transport = undefined;
// Cache response headers
responseHeadersString = headers || "";
// Set readyState
jqXHR.readyState = status > 0 ? 4 : 0;
// Determine if successful
isSuccess = status >= 200 && status < 300 || status === 304;
// Get response data
if ( responses ) {
response = ajaxHandleResponses( s, jqXHR, responses );
}
// Convert no matter what (that way responseXXX fields are always set)
response = ajaxConvert( s, response, jqXHR, isSuccess );
// If successful, handle type chaining
if ( isSuccess ) {
// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
if ( s.ifModified ) {
modified = jqXHR.getResponseHeader("Last-Modified");
if ( modified ) {
jQuery.lastModified[ cacheURL ] = modified;
}
modified = jqXHR.getResponseHeader("etag");
if ( modified ) {
jQuery.etag[ cacheURL ] = modified;
}
}
// if no content
if ( status === 204 || s.type === "HEAD" ) {
statusText = "nocontent";
// if not modified
} else if ( status === 304 ) {
statusText = "notmodified";
// If we have data, let's convert it
} else {
statusText = response.state;
success = response.data;
error = response.error;
isSuccess = !error;
}
} else {
// We extract error from statusText
// then normalize statusText and status for non-aborts
error = statusText;
if ( status || !statusText ) {
statusText = "error";
if ( status < 0 ) {
status = 0;
}
}
}
// Set data for the fake xhr object
jqXHR.status = status;
jqXHR.statusText = ( nativeStatusText || statusText ) + "";
// Success/Error
if ( isSuccess ) {
deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
} else {
deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
}
// Status-dependent callbacks
jqXHR.statusCode( statusCode );
statusCode = undefined;
if ( fireGlobals ) {
globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
[ jqXHR, s, isSuccess ? success : error ] );
}
// Complete
completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );
if ( fireGlobals ) {
globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );
// Handle the global AJAX counter
if ( !( --jQuery.active ) ) {
jQuery.event.trigger("ajaxStop");
}
}
}
return jqXHR;
},
getJSON: function( url, data, callback ) {
return jQuery.get( url, data, callback, "json" );
},
getScript: function( url, callback ) {
return jQuery.get( url, undefined, callback, "script" );
}
});
jQuery.each( [ "get", "post" ], function( i, method ) {
jQuery[ method ] = function( url, data, callback, type ) {
// shift arguments if data argument was omitted
if ( jQuery.isFunction( data ) ) {
type = type || callback;
callback = data;
data = undefined;
}
return jQuery.ajax({
url: url,
type: method,
dataType: type,
data: data,
success: callback
});
};
});
/* Handles responses to an ajax request:
* - finds the right dataType (mediates between content-type and expected dataType)
* - returns the corresponding response
*/
function ajaxHandleResponses( s, jqXHR, responses ) {
var ct, type, finalDataType, firstDataType,
contents = s.contents,
dataTypes = s.dataTypes;
// Remove auto dataType and get content-type in the process
while( dataTypes[ 0 ] === "*" ) {
dataTypes.shift();
if ( ct === undefined ) {
ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");
}
}
// Check if we're dealing with a known content-type
if ( ct ) {
for ( type in contents ) {
if ( contents[ type ] && contents[ type ].test( ct ) ) {
dataTypes.unshift( type );
break;
}
}
}
// Check to see if we have a response for the expected dataType
if ( dataTypes[ 0 ] in responses ) {
finalDataType = dataTypes[ 0 ];
} else {
// Try convertible dataTypes
for ( type in responses ) {
if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[0] ] ) {
finalDataType = type;
break;
}
if ( !firstDataType ) {
firstDataType = type;
}
}
// Or just use first one
finalDataType = finalDataType || firstDataType;
}
// If we found a dataType
// We add the dataType to the list if needed
// and return the corresponding response
if ( finalDataType ) {
if ( finalDataType !== dataTypes[ 0 ] ) {
dataTypes.unshift( finalDataType );
}
return responses[ finalDataType ];
}
}
/* Chain conversions given the request and the original response
* Also sets the responseXXX fields on the jqXHR instance
*/
function ajaxConvert( s, response, jqXHR, isSuccess ) {
var conv2, current, conv, tmp, prev,
converters = {},
// Work with a copy of dataTypes in case we need to modify it for conversion
dataTypes = s.dataTypes.slice();
// Create converters map with lowercased keys
if ( dataTypes[ 1 ] ) {
for ( conv in s.converters ) {
converters[ conv.toLowerCase() ] = s.converters[ conv ];
}
}
current = dataTypes.shift();
// Convert to each sequential dataType
while ( current ) {
if ( s.responseFields[ current ] ) {
jqXHR[ s.responseFields[ current ] ] = response;
}
// Apply the dataFilter if provided
if ( !prev && isSuccess && s.dataFilter ) {
response = s.dataFilter( response, s.dataType );
}
prev = current;
current = dataTypes.shift();
if ( current ) {
// There's only work to do if current dataType is non-auto
if ( current === "*" ) {
current = prev;
// Convert response if prev dataType is non-auto and differs from current
} else if ( prev !== "*" && prev !== current ) {
// Seek a direct converter
conv = converters[ prev + " " + current ] || converters[ "* " + current ];
// If none found, seek a pair
if ( !conv ) {
for ( conv2 in converters ) {
// If conv2 outputs current
tmp = conv2.split( " " );
if ( tmp[ 1 ] === current ) {
// If prev can be converted to accepted input
conv = converters[ prev + " " + tmp[ 0 ] ] ||
converters[ "* " + tmp[ 0 ] ];
if ( conv ) {
// Condense equivalence converters
if ( conv === true ) {
conv = converters[ conv2 ];
// Otherwise, insert the intermediate dataType
} else if ( converters[ conv2 ] !== true ) {
current = tmp[ 0 ];
dataTypes.unshift( tmp[ 1 ] );
}
break;
}
}
}
}
// Apply converter (if not an equivalence)
if ( conv !== true ) {
// Unless errors are allowed to bubble, catch and return them
if ( conv && s[ "throws" ] ) {
response = conv( response );
} else {
try {
response = conv( response );
} catch ( e ) {
return { state: "parsererror", error: conv ? e : "No conversion from " + prev + " to " + current };
}
}
}
}
}
}
return { state: "success", data: response };
}
// Install script dataType
jQuery.ajaxSetup({
accepts: {
script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
},
contents: {
script: /(?:java|ecma)script/
},
converters: {
"text script": function( text ) {
jQuery.globalEval( text );
return text;
}
}
});
// Handle cache's special case and crossDomain
jQuery.ajaxPrefilter( "script", function( s ) {
if ( s.cache === undefined ) {
s.cache = false;
}
if ( s.crossDomain ) {
s.type = "GET";
}
});
// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {
// This transport only deals with cross domain requests
if ( s.crossDomain ) {
var script, callback;
return {
send: function( _, complete ) {
script = jQuery("<script>").prop({
async: true,
charset: s.scriptCharset,
src: s.url
}).on(
"load error",
callback = function( evt ) {
script.remove();
callback = null;
if ( evt ) {
complete( evt.type === "error" ? 404 : 200, evt.type );
}
}
);
document.head.appendChild( script[ 0 ] );
},
abort: function() {
if ( callback ) {
callback();
}
}
};
}
});
var oldCallbacks = [],
rjsonp = /(=)\?(?=&|$)|\?\?/;
// Default jsonp settings
jQuery.ajaxSetup({
jsonp: "callback",
jsonpCallback: function() {
var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( ajax_nonce++ ) );
this[ callback ] = true;
return callback;
}
});
// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {
var callbackName, overwritten, responseContainer,
jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
"url" :
typeof s.data === "string" && !( s.contentType || "" ).indexOf("application/x-www-form-urlencoded") && rjsonp.test( s.data ) && "data"
);
// Handle iff the expected data type is "jsonp" or we have a parameter to set
if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {
// Get callback name, remembering preexisting value associated with it
callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
s.jsonpCallback() :
s.jsonpCallback;
// Insert callback into url or form data
if ( jsonProp ) {
s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
} else if ( s.jsonp !== false ) {
s.url += ( ajax_rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
}
// Use data converter to retrieve json after script execution
s.converters["script json"] = function() {
if ( !responseContainer ) {
jQuery.error( callbackName + " was not called" );
}
return responseContainer[ 0 ];
};
// force json dataType
s.dataTypes[ 0 ] = "json";
// Install callback
overwritten = window[ callbackName ];
window[ callbackName ] = function() {
responseContainer = arguments;
};
// Clean-up function (fires after converters)
jqXHR.always(function() {
// Restore preexisting value
window[ callbackName ] = overwritten;
// Save back as free
if ( s[ callbackName ] ) {
// make sure that re-using the options doesn't screw things around
s.jsonpCallback = originalSettings.jsonpCallback;
// save the callback name for future use
oldCallbacks.push( callbackName );
}
// Call if it was a function and we have a response
if ( responseContainer && jQuery.isFunction( overwritten ) ) {
overwritten( responseContainer[ 0 ] );
}
responseContainer = overwritten = undefined;
});
// Delegate to script
return "script";
}
});
jQuery.ajaxSettings.xhr = function() {
try {
return new XMLHttpRequest();
} catch( e ) {}
};
var xhrSupported = jQuery.ajaxSettings.xhr(),
xhrSuccessStatus = {
// file protocol always yields status code 0, assume 200
0: 200,
// Support: IE9
// #1450: sometimes IE returns 1223 when it should be 204
1223: 204
},
// Support: IE9
// We need to keep track of outbound xhr and abort them manually
// because IE is not smart enough to do it all by itself
xhrId = 0,
xhrCallbacks = {};
if ( window.ActiveXObject ) {
jQuery( window ).on( "unload", function() {
for( var key in xhrCallbacks ) {
xhrCallbacks[ key ]();
}
xhrCallbacks = undefined;
});
}
jQuery.support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
jQuery.support.ajax = xhrSupported = !!xhrSupported;
jQuery.ajaxTransport(function( options ) {
var callback;
// Cross domain only allowed if supported through XMLHttpRequest
if ( jQuery.support.cors || xhrSupported && !options.crossDomain ) {
return {
send: function( headers, complete ) {
var i, id,
xhr = options.xhr();
xhr.open( options.type, options.url, options.async, options.username, options.password );
// Apply custom fields if provided
if ( options.xhrFields ) {
for ( i in options.xhrFields ) {
xhr[ i ] = options.xhrFields[ i ];
}
}
// Override mime type if needed
if ( options.mimeType && xhr.overrideMimeType ) {
xhr.overrideMimeType( options.mimeType );
}
// X-Requested-With header
// For cross-domain requests, seeing as conditions for a preflight are
// akin to a jigsaw puzzle, we simply never set it to be sure.
// (it can always be set on a per-request basis or even using ajaxSetup)
// For same-domain requests, won't change header if already provided.
if ( !options.crossDomain && !headers["X-Requested-With"] ) {
headers["X-Requested-With"] = "XMLHttpRequest";
}
// Set headers
for ( i in headers ) {
xhr.setRequestHeader( i, headers[ i ] );
}
// Callback
callback = function( type ) {
return function() {
if ( callback ) {
delete xhrCallbacks[ id ];
callback = xhr.onload = xhr.onerror = null;
if ( type === "abort" ) {
xhr.abort();
} else if ( type === "error" ) {
complete(
// file protocol always yields status 0, assume 404
xhr.status || 404,
xhr.statusText
);
} else {
complete(
xhrSuccessStatus[ xhr.status ] || xhr.status,
xhr.statusText,
// Support: IE9
// #11426: When requesting binary data, IE9 will throw an exception
// on any attempt to access responseText
typeof xhr.responseText === "string" ? {
text: xhr.responseText
} : undefined,
xhr.getAllResponseHeaders()
);
}
}
};
};
// Listen to events
xhr.onload = callback();
xhr.onerror = callback("error");
// Create the abort callback
callback = xhrCallbacks[( id = xhrId++ )] = callback("abort");
// Do send the request
// This may raise an exception which is actually
// handled in jQuery.ajax (so no try/catch here)
xhr.send( options.hasContent && options.data || null );
},
abort: function() {
if ( callback ) {
callback();
}
}
};
}
});
var fxNow, timerId,
rfxtypes = /^(?:toggle|show|hide)$/,
rfxnum = new RegExp( "^(?:([+-])=|)(" + core_pnum + ")([a-z%]*)$", "i" ),
rrun = /queueHooks$/,
animationPrefilters = [ defaultPrefilter ],
tweeners = {
"*": [function( prop, value ) {
var tween = this.createTween( prop, value ),
target = tween.cur(),
parts = rfxnum.exec( value ),
unit = parts && parts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
// Starting value computation is required for potential unit mismatches
start = ( jQuery.cssNumber[ prop ] || unit !== "px" && +target ) &&
rfxnum.exec( jQuery.css( tween.elem, prop ) ),
scale = 1,
maxIterations = 20;
if ( start && start[ 3 ] !== unit ) {
// Trust units reported by jQuery.css
unit = unit || start[ 3 ];
// Make sure we update the tween properties later on
parts = parts || [];
// Iteratively approximate from a nonzero starting point
start = +target || 1;
do {
// If previous iteration zeroed out, double until we get *something*
// Use a string for doubling factor so we don't accidentally see scale as unchanged below
scale = scale || ".5";
// Adjust and apply
start = start / scale;
jQuery.style( tween.elem, prop, start + unit );
// Update scale, tolerating zero or NaN from tween.cur()
// And breaking the loop if scale is unchanged or perfect, or if we've just had enough
} while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
}
// Update tween properties
if ( parts ) {
start = tween.start = +start || +target || 0;
tween.unit = unit;
// If a +=/-= token was provided, we're doing a relative animation
tween.end = parts[ 1 ] ?
start + ( parts[ 1 ] + 1 ) * parts[ 2 ] :
+parts[ 2 ];
}
return tween;
}]
};
// Animations created synchronously will run synchronously
function createFxNow() {
setTimeout(function() {
fxNow = undefined;
});
return ( fxNow = jQuery.now() );
}
function createTween( value, prop, animation ) {
var tween,
collection = ( tweeners[ prop ] || [] ).concat( tweeners[ "*" ] ),
index = 0,
length = collection.length;
for ( ; index < length; index++ ) {
if ( (tween = collection[ index ].call( animation, prop, value )) ) {
// we're done with this property
return tween;
}
}
}
function Animation( elem, properties, options ) {
var result,
stopped,
index = 0,
length = animationPrefilters.length,
deferred = jQuery.Deferred().always( function() {
// don't match elem in the :animated selector
delete tick.elem;
}),
tick = function() {
if ( stopped ) {
return false;
}
var currentTime = fxNow || createFxNow(),
remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),
// archaic crash bug won't allow us to use 1 - ( 0.5 || 0 ) (#12497)
temp = remaining / animation.duration || 0,
percent = 1 - temp,
index = 0,
length = animation.tweens.length;
for ( ; index < length ; index++ ) {
animation.tweens[ index ].run( percent );
}
deferred.notifyWith( elem, [ animation, percent, remaining ]);
if ( percent < 1 && length ) {
return remaining;
} else {
deferred.resolveWith( elem, [ animation ] );
return false;
}
},
animation = deferred.promise({
elem: elem,
props: jQuery.extend( {}, properties ),
opts: jQuery.extend( true, { specialEasing: {} }, options ),
originalProperties: properties,
originalOptions: options,
startTime: fxNow || createFxNow(),
duration: options.duration,
tweens: [],
createTween: function( prop, end ) {
var tween = jQuery.Tween( elem, animation.opts, prop, end,
animation.opts.specialEasing[ prop ] || animation.opts.easing );
animation.tweens.push( tween );
return tween;
},
stop: function( gotoEnd ) {
var index = 0,
// if we are going to the end, we want to run all the tweens
// otherwise we skip this part
length = gotoEnd ? animation.tweens.length : 0;
if ( stopped ) {
return this;
}
stopped = true;
for ( ; index < length ; index++ ) {
animation.tweens[ index ].run( 1 );
}
// resolve when we played the last frame
// otherwise, reject
if ( gotoEnd ) {
deferred.resolveWith( elem, [ animation, gotoEnd ] );
} else {
deferred.rejectWith( elem, [ animation, gotoEnd ] );
}
return this;
}
}),
props = animation.props;
propFilter( props, animation.opts.specialEasing );
for ( ; index < length ; index++ ) {
result = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
if ( result ) {
return result;
}
}
jQuery.map( props, createTween, animation );
if ( jQuery.isFunction( animation.opts.start ) ) {
animation.opts.start.call( elem, animation );
}
jQuery.fx.timer(
jQuery.extend( tick, {
elem: elem,
anim: animation,
queue: animation.opts.queue
})
);
// attach callbacks from options
return animation.progress( animation.opts.progress )
.done( animation.opts.done, animation.opts.complete )
.fail( animation.opts.fail )
.always( animation.opts.always );
}
function propFilter( props, specialEasing ) {
var index, name, easing, value, hooks;
// camelCase, specialEasing and expand cssHook pass
for ( index in props ) {
name = jQuery.camelCase( index );
easing = specialEasing[ name ];
value = props[ index ];
if ( jQuery.isArray( value ) ) {
easing = value[ 1 ];
value = props[ index ] = value[ 0 ];
}
if ( index !== name ) {
props[ name ] = value;
delete props[ index ];
}
hooks = jQuery.cssHooks[ name ];
if ( hooks && "expand" in hooks ) {
value = hooks.expand( value );
delete props[ name ];
// not quite $.extend, this wont overwrite keys already present.
// also - reusing 'index' from above because we have the correct "name"
for ( index in value ) {
if ( !( index in props ) ) {
props[ index ] = value[ index ];
specialEasing[ index ] = easing;
}
}
} else {
specialEasing[ name ] = easing;
}
}
}
jQuery.Animation = jQuery.extend( Animation, {
tweener: function( props, callback ) {
if ( jQuery.isFunction( props ) ) {
callback = props;
props = [ "*" ];
} else {
props = props.split(" ");
}
var prop,
index = 0,
length = props.length;
for ( ; index < length ; index++ ) {
prop = props[ index ];
tweeners[ prop ] = tweeners[ prop ] || [];
tweeners[ prop ].unshift( callback );
}
},
prefilter: function( callback, prepend ) {
if ( prepend ) {
animationPrefilters.unshift( callback );
} else {
animationPrefilters.push( callback );
}
}
});
function defaultPrefilter( elem, props, opts ) {
/* jshint validthis: true */
var prop, value, toggle, tween, hooks, oldfire,
anim = this,
orig = {},
style = elem.style,
hidden = elem.nodeType && isHidden( elem ),
dataShow = data_priv.get( elem, "fxshow" );
// handle queue: false promises
if ( !opts.queue ) {
hooks = jQuery._queueHooks( elem, "fx" );
if ( hooks.unqueued == null ) {
hooks.unqueued = 0;
oldfire = hooks.empty.fire;
hooks.empty.fire = function() {
if ( !hooks.unqueued ) {
oldfire();
}
};
}
hooks.unqueued++;
anim.always(function() {
// doing this makes sure that the complete handler will be called
// before this completes
anim.always(function() {
hooks.unqueued--;
if ( !jQuery.queue( elem, "fx" ).length ) {
hooks.empty.fire();
}
});
});
}
// height/width overflow pass
if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
// Make sure that nothing sneaks out
// Record all 3 overflow attributes because IE9-10 do not
// change the overflow attribute when overflowX and
// overflowY are set to the same value
opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
// Set display property to inline-block for height/width
// animations on inline elements that are having width/height animated
if ( jQuery.css( elem, "display" ) === "inline" &&
jQuery.css( elem, "float" ) === "none" ) {
style.display = "inline-block";
}
}
if ( opts.overflow ) {
style.overflow = "hidden";
anim.always(function() {
style.overflow = opts.overflow[ 0 ];
style.overflowX = opts.overflow[ 1 ];
style.overflowY = opts.overflow[ 2 ];
});
}
// show/hide pass
for ( prop in props ) {
value = props[ prop ];
if ( rfxtypes.exec( value ) ) {
delete props[ prop ];
toggle = toggle || value === "toggle";
if ( value === ( hidden ? "hide" : "show" ) ) {
// If there is dataShow left over from a stopped hide or show and we are going to proceed with show, we should pretend to be hidden
if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
hidden = true;
} else {
continue;
}
}
orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
}
}
if ( !jQuery.isEmptyObject( orig ) ) {
if ( dataShow ) {
if ( "hidden" in dataShow ) {
hidden = dataShow.hidden;
}
} else {
dataShow = data_priv.access( elem, "fxshow", {} );
}
// store state if its toggle - enables .stop().toggle() to "reverse"
if ( toggle ) {
dataShow.hidden = !hidden;
}
if ( hidden ) {
jQuery( elem ).show();
} else {
anim.done(function() {
jQuery( elem ).hide();
});
}
anim.done(function() {
var prop;
data_priv.remove( elem, "fxshow" );
for ( prop in orig ) {
jQuery.style( elem, prop, orig[ prop ] );
}
});
for ( prop in orig ) {
tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
if ( !( prop in dataShow ) ) {
dataShow[ prop ] = tween.start;
if ( hidden ) {
tween.end = tween.start;
tween.start = prop === "width" || prop === "height" ? 1 : 0;
}
}
}
}
}
function Tween( elem, options, prop, end, easing ) {
return new Tween.prototype.init( elem, options, prop, end, easing );
}
jQuery.Tween = Tween;
Tween.prototype = {
constructor: Tween,
init: function( elem, options, prop, end, easing, unit ) {
this.elem = elem;
this.prop = prop;
this.easing = easing || "swing";
this.options = options;
this.start = this.now = this.cur();
this.end = end;
this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
},
cur: function() {
var hooks = Tween.propHooks[ this.prop ];
return hooks && hooks.get ?
hooks.get( this ) :
Tween.propHooks._default.get( this );
},
run: function( percent ) {
var eased,
hooks = Tween.propHooks[ this.prop ];
if ( this.options.duration ) {
this.pos = eased = jQuery.easing[ this.easing ](
percent, this.options.duration * percent, 0, 1, this.options.duration
);
} else {
this.pos = eased = percent;
}
this.now = ( this.end - this.start ) * eased + this.start;
if ( this.options.step ) {
this.options.step.call( this.elem, this.now, this );
}
if ( hooks && hooks.set ) {
hooks.set( this );
} else {
Tween.propHooks._default.set( this );
}
return this;
}
};
Tween.prototype.init.prototype = Tween.prototype;
Tween.propHooks = {
_default: {
get: function( tween ) {
var result;
if ( tween.elem[ tween.prop ] != null &&
(!tween.elem.style || tween.elem.style[ tween.prop ] == null) ) {
return tween.elem[ tween.prop ];
}
// passing an empty string as a 3rd parameter to .css will automatically
// attempt a parseFloat and fallback to a string if the parse fails
// so, simple values such as "10px" are parsed to Float.
// complex values such as "rotate(1rad)" are returned as is.
result = jQuery.css( tween.elem, tween.prop, "" );
// Empty strings, null, undefined and "auto" are converted to 0.
return !result || result === "auto" ? 0 : result;
},
set: function( tween ) {
// use step hook for back compat - use cssHook if its there - use .style if its
// available and use plain properties where available
if ( jQuery.fx.step[ tween.prop ] ) {
jQuery.fx.step[ tween.prop ]( tween );
} else if ( tween.elem.style && ( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null || jQuery.cssHooks[ tween.prop ] ) ) {
jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
} else {
tween.elem[ tween.prop ] = tween.now;
}
}
}
};
// Support: IE9
// Panic based approach to setting things on disconnected nodes
Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
set: function( tween ) {
if ( tween.elem.nodeType && tween.elem.parentNode ) {
tween.elem[ tween.prop ] = tween.now;
}
}
};
jQuery.each([ "toggle", "show", "hide" ], function( i, name ) {
var cssFn = jQuery.fn[ name ];
jQuery.fn[ name ] = function( speed, easing, callback ) {
return speed == null || typeof speed === "boolean" ?
cssFn.apply( this, arguments ) :
this.animate( genFx( name, true ), speed, easing, callback );
};
});
jQuery.fn.extend({
fadeTo: function( speed, to, easing, callback ) {
// show any hidden elements after setting opacity to 0
return this.filter( isHidden ).css( "opacity", 0 ).show()
// animate to the value specified
.end().animate({ opacity: to }, speed, easing, callback );
},
animate: function( prop, speed, easing, callback ) {
var empty = jQuery.isEmptyObject( prop ),
optall = jQuery.speed( speed, easing, callback ),
doAnimation = function() {
// Operate on a copy of prop so per-property easing won't be lost
var anim = Animation( this, jQuery.extend( {}, prop ), optall );
// Empty animations, or finishing resolves immediately
if ( empty || data_priv.get( this, "finish" ) ) {
anim.stop( true );
}
};
doAnimation.finish = doAnimation;
return empty || optall.queue === false ?
this.each( doAnimation ) :
this.queue( optall.queue, doAnimation );
},
stop: function( type, clearQueue, gotoEnd ) {
var stopQueue = function( hooks ) {
var stop = hooks.stop;
delete hooks.stop;
stop( gotoEnd );
};
if ( typeof type !== "string" ) {
gotoEnd = clearQueue;
clearQueue = type;
type = undefined;
}
if ( clearQueue && type !== false ) {
this.queue( type || "fx", [] );
}
return this.each(function() {
var dequeue = true,
index = type != null && type + "queueHooks",
timers = jQuery.timers,
data = data_priv.get( this );
if ( index ) {
if ( data[ index ] && data[ index ].stop ) {
stopQueue( data[ index ] );
}
} else {
for ( index in data ) {
if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
stopQueue( data[ index ] );
}
}
}
for ( index = timers.length; index--; ) {
if ( timers[ index ].elem === this && (type == null || timers[ index ].queue === type) ) {
timers[ index ].anim.stop( gotoEnd );
dequeue = false;
timers.splice( index, 1 );
}
}
// start the next in the queue if the last step wasn't forced
// timers currently will call their complete callbacks, which will dequeue
// but only if they were gotoEnd
if ( dequeue || !gotoEnd ) {
jQuery.dequeue( this, type );
}
});
},
finish: function( type ) {
if ( type !== false ) {
type = type || "fx";
}
return this.each(function() {
var index,
data = data_priv.get( this ),
queue = data[ type + "queue" ],
hooks = data[ type + "queueHooks" ],
timers = jQuery.timers,
length = queue ? queue.length : 0;
// enable finishing flag on private data
data.finish = true;
// empty the queue first
jQuery.queue( this, type, [] );
if ( hooks && hooks.stop ) {
hooks.stop.call( this, true );
}
// look for any active animations, and finish them
for ( index = timers.length; index--; ) {
if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
timers[ index ].anim.stop( true );
timers.splice( index, 1 );
}
}
// look for any animations in the old queue and finish them
for ( index = 0; index < length; index++ ) {
if ( queue[ index ] && queue[ index ].finish ) {
queue[ index ].finish.call( this );
}
}
// turn off finishing flag
delete data.finish;
});
}
});
// Generate parameters to create a standard animation
function genFx( type, includeWidth ) {
var which,
attrs = { height: type },
i = 0;
// if we include width, step value is 1 to do all cssExpand values,
// if we don't include width, step value is 2 to skip over Left and Right
includeWidth = includeWidth? 1 : 0;
for( ; i < 4 ; i += 2 - includeWidth ) {
which = cssExpand[ i ];
attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
}
if ( includeWidth ) {
attrs.opacity = attrs.width = type;
}
return attrs;
}
// Generate shortcuts for custom animations
jQuery.each({
slideDown: genFx("show"),
slideUp: genFx("hide"),
slideToggle: genFx("toggle"),
fadeIn: { opacity: "show" },
fadeOut: { opacity: "hide" },
fadeToggle: { opacity: "toggle" }
}, function( name, props ) {
jQuery.fn[ name ] = function( speed, easing, callback ) {
return this.animate( props, speed, easing, callback );
};
});
jQuery.speed = function( speed, easing, fn ) {
var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
complete: fn || !fn && easing ||
jQuery.isFunction( speed ) && speed,
duration: speed,
easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
};
opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ opt.duration ] : jQuery.fx.speeds._default;
// normalize opt.queue - true/undefined/null -> "fx"
if ( opt.queue == null || opt.queue === true ) {
opt.queue = "fx";
}
// Queueing
opt.old = opt.complete;
opt.complete = function() {
if ( jQuery.isFunction( opt.old ) ) {
opt.old.call( this );
}
if ( opt.queue ) {
jQuery.dequeue( this, opt.queue );
}
};
return opt;
};
jQuery.easing = {
linear: function( p ) {
return p;
},
swing: function( p ) {
return 0.5 - Math.cos( p*Math.PI ) / 2;
}
};
jQuery.timers = [];
jQuery.fx = Tween.prototype.init;
jQuery.fx.tick = function() {
var timer,
timers = jQuery.timers,
i = 0;
fxNow = jQuery.now();
for ( ; i < timers.length; i++ ) {
timer = timers[ i ];
// Checks the timer has not already been removed
if ( !timer() && timers[ i ] === timer ) {
timers.splice( i--, 1 );
}
}
if ( !timers.length ) {
jQuery.fx.stop();
}
fxNow = undefined;
};
jQuery.fx.timer = function( timer ) {
if ( timer() && jQuery.timers.push( timer ) ) {
jQuery.fx.start();
}
};
jQuery.fx.interval = 13;
jQuery.fx.start = function() {
if ( !timerId ) {
timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );
}
};
jQuery.fx.stop = function() {
clearInterval( timerId );
timerId = null;
};
jQuery.fx.speeds = {
slow: 600,
fast: 200,
// Default speed
_default: 400
};
// Back Compat <1.8 extension point
jQuery.fx.step = {};
if ( jQuery.expr && jQuery.expr.filters ) {
jQuery.expr.filters.animated = function( elem ) {
return jQuery.grep(jQuery.timers, function( fn ) {
return elem === fn.elem;
}).length;
};
}
jQuery.fn.offset = function( options ) {
if ( arguments.length ) {
return options === undefined ?
this :
this.each(function( i ) {
jQuery.offset.setOffset( this, options, i );
});
}
var docElem, win,
elem = this[ 0 ],
box = { top: 0, left: 0 },
doc = elem && elem.ownerDocument;
if ( !doc ) {
return;
}
docElem = doc.documentElement;
// Make sure it's not a disconnected DOM node
if ( !jQuery.contains( docElem, elem ) ) {
return box;
}
// If we don't have gBCR, just use 0,0 rather than error
// BlackBerry 5, iOS 3 (original iPhone)
if ( typeof elem.getBoundingClientRect !== core_strundefined ) {
box = elem.getBoundingClientRect();
}
win = getWindow( doc );
return {
top: box.top + win.pageYOffset - docElem.clientTop,
left: box.left + win.pageXOffset - docElem.clientLeft
};
};
jQuery.offset = {
setOffset: function( elem, options, i ) {
var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
position = jQuery.css( elem, "position" ),
curElem = jQuery( elem ),
props = {};
// Set position first, in-case top/left are set even on static elem
if ( position === "static" ) {
elem.style.position = "relative";
}
curOffset = curElem.offset();
curCSSTop = jQuery.css( elem, "top" );
curCSSLeft = jQuery.css( elem, "left" );
calculatePosition = ( position === "absolute" || position === "fixed" ) && ( curCSSTop + curCSSLeft ).indexOf("auto") > -1;
// Need to be able to calculate position if either top or left is auto and position is either absolute or fixed
if ( calculatePosition ) {
curPosition = curElem.position();
curTop = curPosition.top;
curLeft = curPosition.left;
} else {
curTop = parseFloat( curCSSTop ) || 0;
curLeft = parseFloat( curCSSLeft ) || 0;
}
if ( jQuery.isFunction( options ) ) {
options = options.call( elem, i, curOffset );
}
if ( options.top != null ) {
props.top = ( options.top - curOffset.top ) + curTop;
}
if ( options.left != null ) {
props.left = ( options.left - curOffset.left ) + curLeft;
}
if ( "using" in options ) {
options.using.call( elem, props );
} else {
curElem.css( props );
}
}
};
jQuery.fn.extend({
position: function() {
if ( !this[ 0 ] ) {
return;
}
var offsetParent, offset,
elem = this[ 0 ],
parentOffset = { top: 0, left: 0 };
// Fixed elements are offset from window (parentOffset = {top:0, left: 0}, because it is it's only offset parent
if ( jQuery.css( elem, "position" ) === "fixed" ) {
// We assume that getBoundingClientRect is available when computed position is fixed
offset = elem.getBoundingClientRect();
} else {
// Get *real* offsetParent
offsetParent = this.offsetParent();
// Get correct offsets
offset = this.offset();
if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
parentOffset = offsetParent.offset();
}
// Add offsetParent borders
parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
parentOffset.left += jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true );
}
// Subtract parent offsets and element margins
return {
top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
};
},
offsetParent: function() {
return this.map(function() {
var offsetParent = this.offsetParent || docElem;
while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position") === "static" ) ) {
offsetParent = offsetParent.offsetParent;
}
return offsetParent || docElem;
});
}
});
// Create scrollLeft and scrollTop methods
jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {
var top = "pageYOffset" === prop;
jQuery.fn[ method ] = function( val ) {
return jQuery.access( this, function( elem, method, val ) {
var win = getWindow( elem );
if ( val === undefined ) {
return win ? win[ prop ] : elem[ method ];
}
if ( win ) {
win.scrollTo(
!top ? val : window.pageXOffset,
top ? val : window.pageYOffset
);
} else {
elem[ method ] = val;
}
}, method, val, arguments.length, null );
};
});
function getWindow( elem ) {
return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
}
// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name }, function( defaultExtra, funcName ) {
// margin is only for outerHeight, outerWidth
jQuery.fn[ funcName ] = function( margin, value ) {
var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );
return jQuery.access( this, function( elem, type, value ) {
var doc;
if ( jQuery.isWindow( elem ) ) {
// As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there
// isn't a whole lot we can do. See pull request at this URL for discussion:
// https://github.com/jquery/jquery/pull/764
return elem.document.documentElement[ "client" + name ];
}
// Get document width or height
if ( elem.nodeType === 9 ) {
doc = elem.documentElement;
// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
// whichever is greatest
return Math.max(
elem.body[ "scroll" + name ], doc[ "scroll" + name ],
elem.body[ "offset" + name ], doc[ "offset" + name ],
doc[ "client" + name ]
);
}
return value === undefined ?
// Get width or height on the element, requesting but not forcing parseFloat
jQuery.css( elem, type, extra ) :
// Set width or height on the element
jQuery.style( elem, type, value, extra );
}, type, chainable ? margin : undefined, chainable, null );
};
});
});
// Limit scope pollution from any deprecated API
// (function() {
// The number of elements contained in the matched element set
jQuery.fn.size = function() {
return this.length;
};
jQuery.fn.andSelf = jQuery.fn.addBack;
// })();
if ( typeof module === "object" && module && typeof module.exports === "object" ) {
// Expose jQuery as module.exports in loaders that implement the Node
// module pattern (including browserify). Do not create the global, since
// the user will be storing it themselves locally, and globals are frowned
// upon in the Node module world.
module.exports = jQuery;
} else {
// Register as a named AMD module, since jQuery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase jquery is used because AMD module names are
// derived from file names, and jQuery is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of jQuery, it will work.
if ( typeof define === "function" && define.amd ) {
define( "jquery", [], function () { return jQuery; } );
}
}
// If there is a window object, that at least has a document property,
// define jQuery and $ identifiers
if ( typeof window === "object" && typeof window.document === "object" ) {
window.jQuery = window.$ = jQuery;
}
})( window );
Raw
reverseRelationTest_js_lib_lodash.js
/**
* @license
* Lo-Dash 1.3.1 (Custom Build) <http://lodash.com/>
* Build: `lodash -o ./dist/lodash.compat.js`
* Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
* Based on Underscore.js 1.4.4 <http://underscorejs.org/>
* Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud Inc.
* Available under MIT license <http://lodash.com/license>
*/
;(function(window) {
/** Used as a safe reference for `undefined` in pre ES5 environments */
var undefined;
/** Used to pool arrays and objects used internally */
var arrayPool = [],
objectPool = [];
/** Used to generate unique IDs */
var idCounter = 0;
/** Used internally to indicate various things */
var indicatorObject = {};
/** Used to prefix keys to avoid issues with `__proto__` and properties on `Object.prototype` */
var keyPrefix = +new Date + '';
/** Used as the size when optimizations are enabled for large arrays */
var largeArraySize = 75;
/** Used as the max size of the `arrayPool` and `objectPool` */
var maxPoolSize = 40;
/** Used to match empty string literals in compiled template source */
var reEmptyStringLeading = /\b__p \+= '';/g,
reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
/** Used to match HTML entities */
var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g;
/**
* Used to match ES6 template delimiters
* http://people.mozilla.org/~jorendorff/es6-draft.html#sec-7.8.6
*/
var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
/** Used to match regexp flags from their coerced string values */
var reFlags = /\w*$/;
/** Used to match "interpolate" template delimiters */
var reInterpolate = /<%=([\s\S]+?)%>/g;
/** Used to detect functions containing a `this` reference */
var reThis = (reThis = /\bthis\b/) && reThis.test(runInContext) && reThis;
/** Used to detect and test whitespace */
var whitespace = (
// whitespace
' \t\x0B\f\xA0\ufeff' +
// line terminators
'\n\r\u2028\u2029' +
// unicode category "Zs" space separators
'\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
);
/** Used to match leading whitespace and zeros to be removed */
var reLeadingSpacesAndZeros = RegExp('^[' + whitespace + ']*0+(?=.$)');
/** Used to ensure capturing order of template delimiters */
var reNoMatch = /($^)/;
/** Used to match HTML characters */
var reUnescapedHtml = /[&<>"']/g;
/** Used to match unescaped characters in compiled string literals */
var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g;
/** Used to assign default `context` object properties */
var contextProps = [
'Array', 'Boolean', 'Date', 'Error', 'Function', 'Math', 'Number', 'Object',
'RegExp', 'String', '_', 'attachEvent', 'clearTimeout', 'isFinite', 'isNaN',
'parseInt', 'setImmediate', 'setTimeout'
];
/** Used to fix the JScript [[DontEnum]] bug */
var shadowedProps = [
'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable',
'toLocaleString', 'toString', 'valueOf'
];
/** Used to make template sourceURLs easier to identify */
var templateCounter = 0;
/** `Object#toString` result shortcuts */
var argsClass = '[object Arguments]',
arrayClass = '[object Array]',
boolClass = '[object Boolean]',
dateClass = '[object Date]',
errorClass = '[object Error]',
funcClass = '[object Function]',
numberClass = '[object Number]',
objectClass = '[object Object]',
regexpClass = '[object RegExp]',
stringClass = '[object String]';
/** Used to identify object classifications that `_.clone` supports */
var cloneableClasses = {};
cloneableClasses[funcClass] = false;
cloneableClasses[argsClass] = cloneableClasses[arrayClass] =
cloneableClasses[boolClass] = cloneableClasses[dateClass] =
cloneableClasses[numberClass] = cloneableClasses[objectClass] =
cloneableClasses[regexpClass] = cloneableClasses[stringClass] = true;
/** Used to determine if values are of the language type Object */
var objectTypes = {
'boolean': false,
'function': true,
'object': true,
'number': false,
'string': false,
'undefined': false
};
/** Used to escape characters for inclusion in compiled string literals */
var stringEscapes = {
'\\': '\\',
"'": "'",
'\n': 'n',
'\r': 'r',
'\t': 't',
'\u2028': 'u2028',
'\u2029': 'u2029'
};
/** Detect free variable `exports` */
var freeExports = objectTypes[typeof exports] && exports;
/** Detect free variable `module` */
var freeModule = objectTypes[typeof module] && module && module.exports == freeExports && module;
/** Detect free variable `global`, from Node.js or Browserified code, and use it as `window` */
var freeGlobal = objectTypes[typeof global] && global;
if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal)) {
window = freeGlobal;
}
/*--------------------------------------------------------------------------*/
/**
* A basic implementation of `_.indexOf` without support for binary searches
* or `fromIndex` constraints.
*
* @private
* @param {Array} array The array to search.
* @param {Mixed} value The value to search for.
* @param {Number} [fromIndex=0] The index to search from.
* @returns {Number} Returns the index of the matched value or `-1`.
*/
function basicIndexOf(array, value, fromIndex) {
var index = (fromIndex || 0) - 1,
length = array.length;
while (++index < length) {
if (array[index] === value) {
return index;
}
}
return -1;
}
/**
* An implementation of `_.contains` for cache objects that mimics the return
* signature of `_.indexOf` by returning `0` if the value is found, else `-1`.
*
* @private
* @param {Object} cache The cache object to inspect.
* @param {Mixed} value The value to search for.
* @returns {Number} Returns `0` if `value` is found, else `-1`.
*/
function cacheIndexOf(cache, value) {
var type = typeof value;
cache = cache.cache;
if (type == 'boolean' || value == null) {
return cache[value];
}
if (type != 'number' && type != 'string') {
type = 'object';
}
var key = type == 'number' ? value : keyPrefix + value;
cache = cache[type] || (cache[type] = {});
return type == 'object'
? (cache[key] && basicIndexOf(cache[key], value) > -1 ? 0 : -1)
: (cache[key] ? 0 : -1);
}
/**
* Adds a given `value` to the corresponding cache object.
*
* @private
* @param {Mixed} value The value to add to the cache.
*/
function cachePush(value) {
var cache = this.cache,
type = typeof value;
if (type == 'boolean' || value == null) {
cache[value] = true;
} else {
if (type != 'number' && type != 'string') {
type = 'object';
}
var key = type == 'number' ? value : keyPrefix + value,
typeCache = cache[type] || (cache[type] = {});
if (type == 'object') {
if ((typeCache[key] || (typeCache[key] = [])).push(value) == this.array.length) {
cache[type] = false;
}
} else {
typeCache[key] = true;
}
}
}
/**
* Used by `_.max` and `_.min` as the default `callback` when a given
* `collection` is a string value.
*
* @private
* @param {String} value The character to inspect.
* @returns {Number} Returns the code unit of given character.
*/
function charAtCallback(value) {
return value.charCodeAt(0);
}
/**
* Used by `sortBy` to compare transformed `collection` values, stable sorting
* them in ascending order.
*
* @private
* @param {Object} a The object to compare to `b`.
* @param {Object} b The object to compare to `a`.
* @returns {Number} Returns the sort order indicator of `1` or `-1`.
*/
function compareAscending(a, b) {
var ai = a.index,
bi = b.index;
a = a.criteria;
b = b.criteria;
// ensure a stable sort in V8 and other engines
// http://code.google.com/p/v8/issues/detail?id=90
if (a !== b) {
if (a > b || typeof a == 'undefined') {
return 1;
}
if (a < b || typeof b == 'undefined') {
return -1;
}
}
return ai < bi ? -1 : 1;
}
/**
* Creates a cache object to optimize linear searches of large arrays.
*
* @private
* @param {Array} [array=[]] The array to search.
* @returns {Null|Object} Returns the cache object or `null` if caching should not be used.
*/
function createCache(array) {
var index = -1,
length = array.length;
var cache = getObject();
cache['false'] = cache['null'] = cache['true'] = cache['undefined'] = false;
var result = getObject();
result.array = array;
result.cache = cache;
result.push = cachePush;
while (++index < length) {
result.push(array[index]);
}
return cache.object === false
? (releaseObject(result), null)
: result;
}
/**
* Used by `template` to escape characters for inclusion in compiled
* string literals.
*
* @private
* @param {String} match The matched character to escape.
* @returns {String} Returns the escaped character.
*/
function escapeStringChar(match) {
return '\\' + stringEscapes[match];
}
/**
* Gets an array from the array pool or creates a new one if the pool is empty.
*
* @private
* @returns {Array} The array from the pool.
*/
function getArray() {
return arrayPool.pop() || [];
}
/**
* Gets an object from the object pool or creates a new one if the pool is empty.
*
* @private
* @returns {Object} The object from the pool.
*/
function getObject() {
return objectPool.pop() || {
'args': '',
'array': null,
'bottom': '',
'cache': null,
'criteria': null,
'false': false,
'firstArg': '',
'index': 0,
'init': '',
'leading': false,
'loop': '',
'maxWait': 0,
'null': false,
'number': null,
'object': null,
'push': null,
'shadowedProps': null,
'string': null,
'top': '',
'trailing': false,
'true': false,
'undefined': false,
'useHas': false,
'useKeys': false,
'value': null
};
}
/**
* Checks if `value` is a DOM node in IE < 9.
*
* @private
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true` if the `value` is a DOM node, else `false`.
*/
function isNode(value) {
// IE < 9 presents DOM nodes as `Object` objects except they have `toString`
// methods that are `typeof` "string" and still can coerce nodes to strings
return typeof value.toString != 'function' && typeof (value + '') == 'string';
}
/**
* A no-operation function.
*
* @private
*/
function noop() {
// no operation performed
}
/**
* Releases the given `array` back to the array pool.
*
* @private
* @param {Array} [array] The array to release.
*/
function releaseArray(array) {
array.length = 0;
if (arrayPool.length < maxPoolSize) {
arrayPool.push(array);
}
}
/**
* Releases the given `object` back to the object pool.
*
* @private
* @param {Object} [object] The object to release.
*/
function releaseObject(object) {
var cache = object.cache;
if (cache) {
releaseObject(cache);
}
object.array = object.cache = object.criteria = object.object = object.number = object.string = object.value = null;
if (objectPool.length < maxPoolSize) {
objectPool.push(object);
}
}
/**
* Slices the `collection` from the `start` index up to, but not including,
* the `end` index.
*
* Note: This function is used, instead of `Array#slice`, to support node lists
* in IE < 9 and to ensure dense arrays are returned.
*
* @private
* @param {Array|Object|String} collection The collection to slice.
* @param {Number} start The start index.
* @param {Number} end The end index.
* @returns {Array} Returns the new array.
*/
function slice(array, start, end) {
start || (start = 0);
if (typeof end == 'undefined') {
end = array ? array.length : 0;
}
var index = -1,
length = end - start || 0,
result = Array(length < 0 ? 0 : length);
while (++index < length) {
result[index] = array[start + index];
}
return result;
}
/*--------------------------------------------------------------------------*/
/**
* Create a new `lodash` function using the given `context` object.
*
* @static
* @memberOf _
* @category Utilities
* @param {Object} [context=window] The context object.
* @returns {Function} Returns the `lodash` function.
*/
function runInContext(context) {
// Avoid issues with some ES3 environments that attempt to use values, named
// after built-in constructors like `Object`, for the creation of literals.
// ES5 clears this up by stating that literals must use built-in constructors.
// See http://es5.github.com/#x11.1.5.
context = context ? _.defaults(window.Object(), context, _.pick(window, contextProps)) : window;
/** Native constructor references */
var Array = context.Array,
Boolean = context.Boolean,
Date = context.Date,
Error = context.Error,
Function = context.Function,
Math = context.Math,
Number = context.Number,
Object = context.Object,
RegExp = context.RegExp,
String = context.String,
TypeError = context.TypeError;
/**
* Used for `Array` method references.
*
* Normally `Array.prototype` would suffice, however, using an array literal
* avoids issues in Narwhal.
*/
var arrayRef = [];
/** Used for native method references */
var errorProto = Error.prototype,
objectProto = Object.prototype,
stringProto = String.prototype;
/** Used to restore the original `_` reference in `noConflict` */
var oldDash = context._;
/** Used to detect if a method is native */
var reNative = RegExp('^' +
String(objectProto.valueOf)
.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
.replace(/valueOf|for [^\]]+/g, '.+?') + '$'
);
/** Native method shortcuts */
var ceil = Math.ceil,
clearTimeout = context.clearTimeout,
concat = arrayRef.concat,
floor = Math.floor,
fnToString = Function.prototype.toString,
getPrototypeOf = reNative.test(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
hasOwnProperty = objectProto.hasOwnProperty,
push = arrayRef.push,
propertyIsEnumerable = objectProto.propertyIsEnumerable,
setImmediate = context.setImmediate,
setTimeout = context.setTimeout,
toString = objectProto.toString;
/* Native method shortcuts for methods with the same name as other `lodash` methods */
var nativeBind = reNative.test(nativeBind = toString.bind) && nativeBind,
nativeCreate = reNative.test(nativeCreate = Object.create) && nativeCreate,
nativeIsArray = reNative.test(nativeIsArray = Array.isArray) && nativeIsArray,
nativeIsFinite = context.isFinite,
nativeIsNaN = context.isNaN,
nativeKeys = reNative.test(nativeKeys = Object.keys) && nativeKeys,
nativeMax = Math.max,
nativeMin = Math.min,
nativeParseInt = context.parseInt,
nativeRandom = Math.random,
nativeSlice = arrayRef.slice;
/** Detect various environments */
var isIeOpera = reNative.test(context.attachEvent),
isV8 = nativeBind && !/\n|true/.test(nativeBind + isIeOpera);
/** Used to lookup a built-in constructor by [[Class]] */
var ctorByClass = {};
ctorByClass[arrayClass] = Array;
ctorByClass[boolClass] = Boolean;
ctorByClass[dateClass] = Date;
ctorByClass[funcClass] = Function;
ctorByClass[objectClass] = Object;
ctorByClass[numberClass] = Number;
ctorByClass[regexpClass] = RegExp;
ctorByClass[stringClass] = String;
/** Used to avoid iterating non-enumerable properties in IE < 9 */
var nonEnumProps = {};
nonEnumProps[arrayClass] = nonEnumProps[dateClass] = nonEnumProps[numberClass] = { 'constructor': true, 'toLocaleString': true, 'toString': true, 'valueOf': true };
nonEnumProps[boolClass] = nonEnumProps[stringClass] = { 'constructor': true, 'toString': true, 'valueOf': true };
nonEnumProps[errorClass] = nonEnumProps[funcClass] = nonEnumProps[regexpClass] = { 'constructor': true, 'toString': true };
nonEnumProps[objectClass] = { 'constructor': true };
(function() {
var length = shadowedProps.length;
while (length--) {
var prop = shadowedProps[length];
for (var className in nonEnumProps) {
if (hasOwnProperty.call(nonEnumProps, className) && !hasOwnProperty.call(nonEnumProps[className], prop)) {
nonEnumProps[className][prop] = false;
}
}
}
}());
/*--------------------------------------------------------------------------*/
/**
* Creates a `lodash` object, which wraps the given `value`, to enable method
* chaining.
*
* In addition to Lo-Dash methods, wrappers also have the following `Array` methods:
* `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
* and `unshift`
*
* Chaining is supported in custom builds as long as the `value` method is
* implicitly or explicitly included in the build.
*
* The chainable wrapper functions are:
* `after`, `assign`, `bind`, `bindAll`, `bindKey`, `chain`, `compact`,
* `compose`, `concat`, `countBy`, `createCallback`, `debounce`, `defaults`,
* `defer`, `delay`, `difference`, `filter`, `flatten`, `forEach`, `forIn`,
* `forOwn`, `functions`, `groupBy`, `initial`, `intersection`, `invert`,
* `invoke`, `keys`, `map`, `max`, `memoize`, `merge`, `min`, `object`, `omit`,
* `once`, `pairs`, `partial`, `partialRight`, `pick`, `pluck`, `push`, `range`,
* `reject`, `rest`, `reverse`, `shuffle`, `slice`, `sort`, `sortBy`, `splice`,
* `tap`, `throttle`, `times`, `toArray`, `transform`, `union`, `uniq`, `unshift`,
* `unzip`, `values`, `where`, `without`, `wrap`, and `zip`
*
* The non-chainable wrapper functions are:
* `clone`, `cloneDeep`, `contains`, `escape`, `every`, `find`, `has`,
* `identity`, `indexOf`, `isArguments`, `isArray`, `isBoolean`, `isDate`,
* `isElement`, `isEmpty`, `isEqual`, `isFinite`, `isFunction`, `isNaN`,
* `isNull`, `isNumber`, `isObject`, `isPlainObject`, `isRegExp`, `isString`,
* `isUndefined`, `join`, `lastIndexOf`, `mixin`, `noConflict`, `parseInt`,
* `pop`, `random`, `reduce`, `reduceRight`, `result`, `shift`, `size`, `some`,
* `sortedIndex`, `runInContext`, `template`, `unescape`, `uniqueId`, and `value`
*
* The wrapper functions `first` and `last` return wrapped values when `n` is
* passed, otherwise they return unwrapped values.
*
* @name _
* @constructor
* @alias chain
* @category Chaining
* @param {Mixed} value The value to wrap in a `lodash` instance.
* @returns {Object} Returns a `lodash` instance.
* @example
*
* var wrapped = _([1, 2, 3]);
*
* // returns an unwrapped value
* wrapped.reduce(function(sum, num) {
* return sum + num;
* });
* // => 6
*
* // returns a wrapped value
* var squares = wrapped.map(function(num) {
* return num * num;
* });
*
* _.isArray(squares);
* // => false
*
* _.isArray(squares.value());
* // => true
*/
function lodash(value) {
// don't wrap if already wrapped, even if wrapped by a different `lodash` constructor
return (value && typeof value == 'object' && !isArray(value) && hasOwnProperty.call(value, '__wrapped__'))
? value
: new lodashWrapper(value);
}
/**
* A fast path for creating `lodash` wrapper objects.
*
* @private
* @param {Mixed} value The value to wrap in a `lodash` instance.
* @returns {Object} Returns a `lodash` instance.
*/
function lodashWrapper(value) {
this.__wrapped__ = value;
}
// ensure `new lodashWrapper` is an instance of `lodash`
lodashWrapper.prototype = lodash.prototype;
/**
* An object used to flag environments features.
*
* @static
* @memberOf _
* @type Object
*/
var support = lodash.support = {};
(function() {
var ctor = function() { this.x = 1; },
object = { '0': 1, 'length': 1 },
props = [];
ctor.prototype = { 'valueOf': 1, 'y': 1 };
for (var prop in new ctor) { props.push(prop); }
for (prop in arguments) { }
/**
* Detect if `arguments` objects are `Object` objects (all but Narwhal and Opera < 10.5).
*
* @memberOf _.support
* @type Boolean
*/
support.argsObject = arguments.constructor == Object && !(arguments instanceof Array);
/**
* Detect if an `arguments` object's [[Class]] is resolvable (all but Firefox < 4, IE < 9).
*
* @memberOf _.support
* @type Boolean
*/
support.argsClass = isArguments(arguments);
/**
* Detect if `name` or `message` properties of `Error.prototype` are
* enumerable by default. (IE < 9, Safari < 5.1)
*
* @memberOf _.support
* @type Boolean
*/
support.enumErrorProps = propertyIsEnumerable.call(errorProto, 'message') || propertyIsEnumerable.call(errorProto, 'name');
/**
* Detect if `prototype` properties are enumerable by default.
*
* Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1
* (if the prototype or a property on the prototype has been set)
* incorrectly sets a function's `prototype` property [[Enumerable]]
* value to `true`.
*
* @memberOf _.support
* @type Boolean
*/
support.enumPrototypes = propertyIsEnumerable.call(ctor, 'prototype');
/**
* Detect if `Function#bind` exists and is inferred to be fast (all but V8).
*
* @memberOf _.support
* @type Boolean
*/
support.fastBind = nativeBind && !isV8;
/**
* Detect if own properties are iterated after inherited properties (all but IE < 9).
*
* @memberOf _.support
* @type Boolean
*/
support.ownLast = props[0] != 'x';
/**
* Detect if `arguments` object indexes are non-enumerable
* (Firefox < 4, IE < 9, PhantomJS, Safari < 5.1).
*
* @memberOf _.support
* @type Boolean
*/
support.nonEnumArgs = prop != 0;
/**
* Detect if properties shadowing those on `Object.prototype` are non-enumerable.
*
* In IE < 9 an objects own properties, shadowing non-enumerable ones, are
* made non-enumerable as well (a.k.a the JScript [[DontEnum]] bug).
*
* @memberOf _.support
* @type Boolean
*/
support.nonEnumShadows = !/valueOf/.test(props);
/**
* Detect if `Array#shift` and `Array#splice` augment array-like objects correctly.
*
* Firefox < 10, IE compatibility mode, and IE < 9 have buggy Array `shift()`
* and `splice()` functions that fail to remove the last element, `value[0]`,
* of array-like objects even though the `length` property is set to `0`.
* The `shift()` method is buggy in IE 8 compatibility mode, while `splice()`
* is buggy regardless of mode in IE < 9 and buggy in compatibility mode in IE 9.
*
* @memberOf _.support
* @type Boolean
*/
support.spliceObjects = (arrayRef.splice.call(object, 0, 1), !object[0]);
/**
* Detect lack of support for accessing string characters by index.
*
* IE < 8 can't access characters by index and IE 8 can only access
* characters by index on string literals.
*
* @memberOf _.support
* @type Boolean
*/
support.unindexedChars = ('x'[0] + Object('x')[0]) != 'xx';
/**
* Detect if a DOM node's [[Class]] is resolvable (all but IE < 9)
* and that the JS engine errors when attempting to coerce an object to
* a string without a `toString` function.
*
* @memberOf _.support
* @type Boolean
*/
try {
support.nodeClass = !(toString.call(document) == objectClass && !({ 'toString': 0 } + ''));
} catch(e) {
support.nodeClass = true;
}
}(1));
/**
* By default, the template delimiters used by Lo-Dash are similar to those in
* embedded Ruby (ERB). Change the following template settings to use alternative
* delimiters.
*
* @static
* @memberOf _
* @type Object
*/
lodash.templateSettings = {
/**
* Used to detect `data` property values to be HTML-escaped.
*
* @memberOf _.templateSettings
* @type RegExp
*/
'escape': /<%-([\s\S]+?)%>/g,
/**
* Used to detect code to be evaluated.
*
* @memberOf _.templateSettings
* @type RegExp
*/
'evaluate': /<%([\s\S]+?)%>/g,
/**
* Used to detect `data` property values to inject.
*
* @memberOf _.templateSettings
* @type RegExp
*/
'interpolate': reInterpolate,
/**
* Used to reference the data object in the template text.
*
* @memberOf _.templateSettings
* @type String
*/
'variable': '',
/**
* Used to import variables into the compiled template.
*
* @memberOf _.templateSettings
* @type Object
*/
'imports': {
/**
* A reference to the `lodash` function.
*
* @memberOf _.templateSettings.imports
* @type Function
*/
'_': lodash
}
};
/*--------------------------------------------------------------------------*/
/**
* The template used to create iterator functions.
*
* @private
* @param {Object} data The data object used to populate the text.
* @returns {String} Returns the interpolated text.
*/
var iteratorTemplate = function(obj) {
var __p = 'var index, iterable = ' +
(obj.firstArg) +
', result = ' +
(obj.init) +
';\nif (!iterable) return result;\n' +
(obj.top) +
';';
if (obj.array) {
__p += '\nvar length = iterable.length; index = -1;\nif (' +
(obj.array) +
') { ';
if (support.unindexedChars) {
__p += '\n if (isString(iterable)) {\n iterable = iterable.split(\'\')\n } ';
}
__p += '\n while (++index < length) {\n ' +
(obj.loop) +
';\n }\n}\nelse { ';
} else if (support.nonEnumArgs) {
__p += '\n var length = iterable.length; index = -1;\n if (length && isArguments(iterable)) {\n while (++index < length) {\n index += \'\';\n ' +
(obj.loop) +
';\n }\n } else { ';
}
if (support.enumPrototypes) {
__p += '\n var skipProto = typeof iterable == \'function\';\n ';
}
if (support.enumErrorProps) {
__p += '\n var skipErrorProps = iterable === errorProto || iterable instanceof Error;\n ';
}
var conditions = []; if (support.enumPrototypes) { conditions.push('!(skipProto && index == "prototype")'); } if (support.enumErrorProps) { conditions.push('!(skipErrorProps && (index == "message" || index == "name"))'); }
if (obj.useHas && obj.useKeys) {
__p += '\n var ownIndex = -1,\n ownProps = objectTypes[typeof iterable] && keys(iterable),\n length = ownProps ? ownProps.length : 0;\n\n while (++ownIndex < length) {\n index = ownProps[ownIndex];\n';
if (conditions.length) {
__p += ' if (' +
(conditions.join(' && ')) +
') {\n ';
}
__p +=
(obj.loop) +
'; ';
if (conditions.length) {
__p += '\n }';
}
__p += '\n } ';
} else {
__p += '\n for (index in iterable) {\n';
if (obj.useHas) { conditions.push("hasOwnProperty.call(iterable, index)"); } if (conditions.length) {
__p += ' if (' +
(conditions.join(' && ')) +
') {\n ';
}
__p +=
(obj.loop) +
'; ';
if (conditions.length) {
__p += '\n }';
}
__p += '\n } ';
if (support.nonEnumShadows) {
__p += '\n\n if (iterable !== objectProto) {\n var ctor = iterable.constructor,\n isProto = iterable === (ctor && ctor.prototype),\n className = iterable === stringProto ? stringClass : iterable === errorProto ? errorClass : toString.call(iterable),\n nonEnum = nonEnumProps[className];\n ';
for (k = 0; k < 7; k++) {
__p += '\n index = \'' +
(obj.shadowedProps[k]) +
'\';\n if ((!(isProto && nonEnum[index]) && hasOwnProperty.call(iterable, index))';
if (!obj.useHas) {
__p += ' || (!nonEnum[index] && iterable[index] !== objectProto[index])';
}
__p += ') {\n ' +
(obj.loop) +
';\n } ';
}
__p += '\n } ';
}
}
if (obj.array || support.nonEnumArgs) {
__p += '\n}';
}
__p +=
(obj.bottom) +
';\nreturn result';
return __p
};
/** Reusable iterator options for `assign` and `defaults` */
var defaultsIteratorOptions = {
'args': 'object, source, guard',
'top':
'var args = arguments,\n' +
' argsIndex = 0,\n' +
" argsLength = typeof guard == 'number' ? 2 : args.length;\n" +
'while (++argsIndex < argsLength) {\n' +
' iterable = args[argsIndex];\n' +
' if (iterable && objectTypes[typeof iterable]) {',
'loop': "if (typeof result[index] == 'undefined') result[index] = iterable[index]",
'bottom': ' }\n}'
};
/** Reusable iterator options shared by `each`, `forIn`, and `forOwn` */
var eachIteratorOptions = {
'args': 'collection, callback, thisArg',
'top': "callback = callback && typeof thisArg == 'undefined' ? callback : lodash.createCallback(callback, thisArg)",
'array': "typeof length == 'number'",
'loop': 'if (callback(iterable[index], index, collection) === false) return result'
};
/** Reusable iterator options for `forIn` and `forOwn` */
var forOwnIteratorOptions = {
'top': 'if (!objectTypes[typeof iterable]) return result;\n' + eachIteratorOptions.top,
'array': false
};
/*--------------------------------------------------------------------------*/
/**
* Creates a function that, when called, invokes `func` with the `this` binding
* of `thisArg` and prepends any `partialArgs` to the arguments passed to the
* bound function.
*
* @private
* @param {Function|String} func The function to bind or the method name.
* @param {Mixed} [thisArg] The `this` binding of `func`.
* @param {Array} partialArgs An array of arguments to be partially applied.
* @param {Object} [idicator] Used to indicate binding by key or partially
* applying arguments from the right.
* @returns {Function} Returns the new bound function.
*/
function createBound(func, thisArg, partialArgs, indicator) {
var isFunc = isFunction(func),
isPartial = !partialArgs,
key = thisArg;
// juggle arguments
if (isPartial) {
var rightIndicator = indicator;
partialArgs = thisArg;
}
else if (!isFunc) {
if (!indicator) {
throw new TypeError;
}
thisArg = func;
}
function bound() {
// `Function#bind` spec
// http://es5.github.com/#x15.3.4.5
var args = arguments,
thisBinding = isPartial ? this : thisArg;
if (!isFunc) {
func = thisArg[key];
}
if (partialArgs.length) {
args = args.length
? (args = nativeSlice.call(args), rightIndicator ? args.concat(partialArgs) : partialArgs.concat(args))
: partialArgs;
}
if (this instanceof bound) {
// ensure `new bound` is an instance of `func`
thisBinding = createObject(func.prototype);
// mimic the constructor's `return` behavior
// http://es5.github.com/#x13.2.2
var result = func.apply(thisBinding, args);
return isObject(result) ? result : thisBinding;
}
return func.apply(thisBinding, args);
}
return bound;
}
/**
* Creates compiled iteration functions.
*
* @private
* @param {Object} [options1, options2, ...] The compile options object(s).
* array - A string of code to determine if the iterable is an array or array-like.
* useHas - A boolean to specify using `hasOwnProperty` checks in the object loop.
* useKeys - A boolean to specify using `_.keys` for own property iteration.
* args - A string of comma separated arguments the iteration function will accept.
* top - A string of code to execute before the iteration branches.
* loop - A string of code to execute in the object loop.
* bottom - A string of code to execute after the iteration branches.
* @returns {Function} Returns the compiled function.
*/
function createIterator() {
var data = getObject();
// data properties
data.shadowedProps = shadowedProps;
// iterator options
data.array = data.bottom = data.loop = data.top = '';
data.init = 'iterable';
data.useHas = true;
data.useKeys = !!keys;
// merge options into a template data object
for (var object, index = 0; object = arguments[index]; index++) {
for (var key in object) {
data[key] = object[key];
}
}
var args = data.args;
data.firstArg = /^[^,]+/.exec(args)[0];
// create the function factory
var factory = Function(
'errorClass, errorProto, hasOwnProperty, isArguments, isArray, ' +
'isString, keys, lodash, objectProto, objectTypes, nonEnumProps, ' +
'stringClass, stringProto, toString',
'return function(' + args + ') {\n' + iteratorTemplate(data) + '\n}'
);
releaseObject(data);
// return the compiled function
return factory(
errorClass, errorProto, hasOwnProperty, isArguments, isArray,
isString, keys, lodash, objectProto, objectTypes, nonEnumProps,
stringClass, stringProto, toString
);
}
/**
* Creates a new object with the specified `prototype`.
*
* @private
* @param {Object} prototype The prototype object.
* @returns {Object} Returns the new object.
*/
function createObject(prototype) {
return isObject(prototype) ? nativeCreate(prototype) : {};
}
// fallback for browsers without `Object.create`
if (!nativeCreate) {
var createObject = function(prototype) {
if (isObject(prototype)) {
noop.prototype = prototype;
var result = new noop;
noop.prototype = null;
}
return result || {};
};
}
/**
* Used by `escape` to convert characters to HTML entities.
*
* @private
* @param {String} match The matched character to escape.
* @returns {String} Returns the escaped character.
*/
function escapeHtmlChar(match) {
return htmlEscapes[match];
}
/**
* Gets the appropriate "indexOf" function. If the `_.indexOf` method is
* customized, this method returns the custom method, otherwise it returns
* the `basicIndexOf` function.
*
* @private
* @returns {Function} Returns the "indexOf" function.
*/
function getIndexOf(array, value, fromIndex) {
var result = (result = lodash.indexOf) === indexOf ? basicIndexOf : result;
return result;
}
/**
* Creates a function that juggles arguments, allowing argument overloading
* for `_.flatten` and `_.uniq`, before passing them to the given `func`.
*
* @private
* @param {Function} func The function to wrap.
* @returns {Function} Returns the new function.
*/
function overloadWrapper(func) {
return function(array, flag, callback, thisArg) {
// juggle arguments
if (typeof flag != 'boolean' && flag != null) {
thisArg = callback;
callback = !(thisArg && thisArg[flag] === array) ? flag : undefined;
flag = false;
}
if (callback != null) {
callback = lodash.createCallback(callback, thisArg);
}
return func(array, flag, callback, thisArg);
};
}
/**
* A fallback implementation of `isPlainObject` which checks if a given `value`
* is an object created by the `Object` constructor, assuming objects created
* by the `Object` constructor have no inherited enumerable properties and that
* there are no `Object.prototype` extensions.
*
* @private
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if `value` is a plain object, else `false`.
*/
function shimIsPlainObject(value) {
var ctor,
result;
// avoid non Object objects, `arguments` objects, and DOM elements
if (!(value && toString.call(value) == objectClass) ||
(ctor = value.constructor, isFunction(ctor) && !(ctor instanceof ctor)) ||
(!support.argsClass && isArguments(value)) ||
(!support.nodeClass && isNode(value))) {
return false;
}
// IE < 9 iterates inherited properties before own properties. If the first
// iterated property is an object's own property then there are no inherited
// enumerable properties.
if (support.ownLast) {
forIn(value, function(value, key, object) {
result = hasOwnProperty.call(object, key);
return false;
});
return result !== false;
}
// In most environments an object's own properties are iterated before
// its inherited properties. If the last iterated property is an object's
// own property then there are no inherited enumerable properties.
forIn(value, function(value, key) {
result = key;
});
return result === undefined || hasOwnProperty.call(value, result);
}
/**
* Used by `unescape` to convert HTML entities to characters.
*
* @private
* @param {String} match The matched character to unescape.
* @returns {String} Returns the unescaped character.
*/
function unescapeHtmlChar(match) {
return htmlUnescapes[match];
}
/*--------------------------------------------------------------------------*/
/**
* Checks if `value` is an `arguments` object.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is an `arguments` object, else `false`.
* @example
*
* (function() { return _.isArguments(arguments); })(1, 2, 3);
* // => true
*
* _.isArguments([1, 2, 3]);
* // => false
*/
function isArguments(value) {
return toString.call(value) == argsClass;
}
// fallback for browsers that can't detect `arguments` objects by [[Class]]
if (!support.argsClass) {
isArguments = function(value) {
return value ? hasOwnProperty.call(value, 'callee') : false;
};
}
/**
* Checks if `value` is an array.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is an array, else `false`.
* @example
*
* (function() { return _.isArray(arguments); })();
* // => false
*
* _.isArray([1, 2, 3]);
* // => true
*/
var isArray = nativeIsArray || function(value) {
return value ? (typeof value == 'object' && toString.call(value) == arrayClass) : false;
};
/**
* A fallback implementation of `Object.keys` which produces an array of the
* given object's own enumerable property names.
*
* @private
* @type Function
* @param {Object} object The object to inspect.
* @returns {Array} Returns a new array of property names.
*/
var shimKeys = createIterator({
'args': 'object',
'init': '[]',
'top': 'if (!(objectTypes[typeof object])) return result',
'loop': 'result.push(index)'
});
/**
* Creates an array composed of the own enumerable property names of `object`.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to inspect.
* @returns {Array} Returns a new array of property names.
* @example
*
* _.keys({ 'one': 1, 'two': 2, 'three': 3 });
* // => ['one', 'two', 'three'] (order is not guaranteed)
*/
var keys = !nativeKeys ? shimKeys : function(object) {
if (!isObject(object)) {
return [];
}
if ((support.enumPrototypes && typeof object == 'function') ||
(support.nonEnumArgs && object.length && isArguments(object))) {
return shimKeys(object);
}
return nativeKeys(object);
};
/**
* A function compiled to iterate `arguments` objects, arrays, objects, and
* strings consistenly across environments, executing the `callback` for each
* element in the `collection`. The `callback` is bound to `thisArg` and invoked
* with three arguments; (value, index|key, collection). Callbacks may exit
* iteration early by explicitly returning `false`.
*
* @private
* @type Function
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array|Object|String} Returns `collection`.
*/
var basicEach = createIterator(eachIteratorOptions);
/**
* Used to convert characters to HTML entities:
*
* Though the `>` character is escaped for symmetry, characters like `>` and `/`
* don't require escaping in HTML and have no special meaning unless they're part
* of a tag or an unquoted attribute value.
* http://mathiasbynens.be/notes/ambiguous-ampersands (under "semi-related fun fact")
*/
var htmlEscapes = {
'&': '&amp;',
'<': '&lt;',
'>': '&gt;',
'"': '&quot;',
"'": '&#39;'
};
/** Used to convert HTML entities to characters */
var htmlUnescapes = invert(htmlEscapes);
/*--------------------------------------------------------------------------*/
/**
* Assigns own enumerable properties of source object(s) to the destination
* object. Subsequent sources will overwrite property assignments of previous
* sources. If a `callback` function is passed, it will be executed to produce
* the assigned values. The `callback` is bound to `thisArg` and invoked with
* two arguments; (objectValue, sourceValue).
*
* @static
* @memberOf _
* @type Function
* @alias extend
* @category Objects
* @param {Object} object The destination object.
* @param {Object} [source1, source2, ...] The source objects.
* @param {Function} [callback] The function to customize assigning values.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns the destination object.
* @example
*
* _.assign({ 'name': 'moe' }, { 'age': 40 });
* // => { 'name': 'moe', 'age': 40 }
*
* var defaults = _.partialRight(_.assign, function(a, b) {
* return typeof a == 'undefined' ? b : a;
* });
*
* var food = { 'name': 'apple' };
* defaults(food, { 'name': 'banana', 'type': 'fruit' });
* // => { 'name': 'apple', 'type': 'fruit' }
*/
var assign = createIterator(defaultsIteratorOptions, {
'top':
defaultsIteratorOptions.top.replace(';',
';\n' +
"if (argsLength > 3 && typeof args[argsLength - 2] == 'function') {\n" +
' var callback = lodash.createCallback(args[--argsLength - 1], args[argsLength--], 2);\n' +
"} else if (argsLength > 2 && typeof args[argsLength - 1] == 'function') {\n" +
' callback = args[--argsLength];\n' +
'}'
),
'loop': 'result[index] = callback ? callback(result[index], iterable[index]) : iterable[index]'
});
/**
* Creates a clone of `value`. If `deep` is `true`, nested objects will also
* be cloned, otherwise they will be assigned by reference. If a `callback`
* function is passed, it will be executed to produce the cloned values. If
* `callback` returns `undefined`, cloning will be handled by the method instead.
* The `callback` is bound to `thisArg` and invoked with one argument; (value).
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to clone.
* @param {Boolean} [deep=false] A flag to indicate a deep clone.
* @param {Function} [callback] The function to customize cloning values.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @param- {Array} [stackA=[]] Tracks traversed source objects.
* @param- {Array} [stackB=[]] Associates clones with source counterparts.
* @returns {Mixed} Returns the cloned `value`.
* @example
*
* var stooges = [
* { 'name': 'moe', 'age': 40 },
* { 'name': 'larry', 'age': 50 }
* ];
*
* var shallow = _.clone(stooges);
* shallow[0] === stooges[0];
* // => true
*
* var deep = _.clone(stooges, true);
* deep[0] === stooges[0];
* // => false
*
* _.mixin({
* 'clone': _.partialRight(_.clone, function(value) {
* return _.isElement(value) ? value.cloneNode(false) : undefined;
* })
* });
*
* var clone = _.clone(document.body);
* clone.childNodes.length;
* // => 0
*/
function clone(value, deep, callback, thisArg, stackA, stackB) {
var result = value;
// allows working with "Collections" methods without using their `callback`
// argument, `index|key`, for this method's `callback`
if (typeof deep != 'boolean' && deep != null) {
thisArg = callback;
callback = deep;
deep = false;
}
if (typeof callback == 'function') {
callback = (typeof thisArg == 'undefined')
? callback
: lodash.createCallback(callback, thisArg, 1);
result = callback(result);
if (typeof result != 'undefined') {
return result;
}
result = value;
}
// inspect [[Class]]
var isObj = isObject(result);
if (isObj) {
var className = toString.call(result);
if (!cloneableClasses[className] || (!support.nodeClass && isNode(result))) {
return result;
}
var isArr = isArray(result);
}
// shallow clone
if (!isObj || !deep) {
return isObj
? (isArr ? slice(result) : assign({}, result))
: result;
}
var ctor = ctorByClass[className];
switch (className) {
case boolClass:
case dateClass:
return new ctor(+result);
case numberClass:
case stringClass:
return new ctor(result);
case regexpClass:
return ctor(result.source, reFlags.exec(result));
}
// check for circular references and return corresponding clone
var initedStack = !stackA;
stackA || (stackA = getArray());
stackB || (stackB = getArray());
var length = stackA.length;
while (length--) {
if (stackA[length] == value) {
return stackB[length];
}
}
// init cloned object
result = isArr ? ctor(result.length) : {};
// add array properties assigned by `RegExp#exec`
if (isArr) {
if (hasOwnProperty.call(value, 'index')) {
result.index = value.index;
}
if (hasOwnProperty.call(value, 'input')) {
result.input = value.input;
}
}
// add the source value to the stack of traversed objects
// and associate it with its clone
stackA.push(value);
stackB.push(result);
// recursively populate clone (susceptible to call stack limits)
(isArr ? basicEach : forOwn)(value, function(objValue, key) {
result[key] = clone(objValue, deep, callback, undefined, stackA, stackB);
});
if (initedStack) {
releaseArray(stackA);
releaseArray(stackB);
}
return result;
}
/**
* Creates a deep clone of `value`. If a `callback` function is passed,
* it will be executed to produce the cloned values. If `callback` returns
* `undefined`, cloning will be handled by the method instead. The `callback`
* is bound to `thisArg` and invoked with one argument; (value).
*
* Note: This method is loosely based on the structured clone algorithm. Functions
* and DOM nodes are **not** cloned. The enumerable properties of `arguments` objects and
* objects created by constructors other than `Object` are cloned to plain `Object` objects.
* See http://www.w3.org/TR/html5/infrastructure.html#internal-structured-cloning-algorithm.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to deep clone.
* @param {Function} [callback] The function to customize cloning values.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the deep cloned `value`.
* @example
*
* var stooges = [
* { 'name': 'moe', 'age': 40 },
* { 'name': 'larry', 'age': 50 }
* ];
*
* var deep = _.cloneDeep(stooges);
* deep[0] === stooges[0];
* // => false
*
* var view = {
* 'label': 'docs',
* 'node': element
* };
*
* var clone = _.cloneDeep(view, function(value) {
* return _.isElement(value) ? value.cloneNode(true) : undefined;
* });
*
* clone.node == view.node;
* // => false
*/
function cloneDeep(value, callback, thisArg) {
return clone(value, true, callback, thisArg);
}
/**
* Assigns own enumerable properties of source object(s) to the destination
* object for all destination properties that resolve to `undefined`. Once a
* property is set, additional defaults of the same property will be ignored.
*
* @static
* @memberOf _
* @type Function
* @category Objects
* @param {Object} object The destination object.
* @param {Object} [source1, source2, ...] The source objects.
* @param- {Object} [guard] Allows working with `_.reduce` without using its
* callback's `key` and `object` arguments as sources.
* @returns {Object} Returns the destination object.
* @example
*
* var food = { 'name': 'apple' };
* _.defaults(food, { 'name': 'banana', 'type': 'fruit' });
* // => { 'name': 'apple', 'type': 'fruit' }
*/
var defaults = createIterator(defaultsIteratorOptions);
/**
* This method is similar to `_.find`, except that it returns the key of the
* element that passes the callback check, instead of the element itself.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to search.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the key of the found element, else `undefined`.
* @example
*
* _.findKey({ 'a': 1, 'b': 2, 'c': 3, 'd': 4 }, function(num) {
* return num % 2 == 0;
* });
* // => 'b'
*/
function findKey(object, callback, thisArg) {
var result;
callback = lodash.createCallback(callback, thisArg);
forOwn(object, function(value, key, object) {
if (callback(value, key, object)) {
result = key;
return false;
}
});
return result;
}
/**
* Iterates over `object`'s own and inherited enumerable properties, executing
* the `callback` for each property. The `callback` is bound to `thisArg` and
* invoked with three arguments; (value, key, object). Callbacks may exit iteration
* early by explicitly returning `false`.
*
* @static
* @memberOf _
* @type Function
* @category Objects
* @param {Object} object The object to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns `object`.
* @example
*
* function Dog(name) {
* this.name = name;
* }
*
* Dog.prototype.bark = function() {
* alert('Woof, woof!');
* };
*
* _.forIn(new Dog('Dagny'), function(value, key) {
* alert(key);
* });
* // => alerts 'name' and 'bark' (order is not guaranteed)
*/
var forIn = createIterator(eachIteratorOptions, forOwnIteratorOptions, {
'useHas': false
});
/**
* Iterates over an object's own enumerable properties, executing the `callback`
* for each property. The `callback` is bound to `thisArg` and invoked with three
* arguments; (value, key, object). Callbacks may exit iteration early by explicitly
* returning `false`.
*
* @static
* @memberOf _
* @type Function
* @category Objects
* @param {Object} object The object to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns `object`.
* @example
*
* _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) {
* alert(key);
* });
* // => alerts '0', '1', and 'length' (order is not guaranteed)
*/
var forOwn = createIterator(eachIteratorOptions, forOwnIteratorOptions);
/**
* Creates a sorted array of all enumerable properties, own and inherited,
* of `object` that have function values.
*
* @static
* @memberOf _
* @alias methods
* @category Objects
* @param {Object} object The object to inspect.
* @returns {Array} Returns a new array of property names that have function values.
* @example
*
* _.functions(_);
* // => ['all', 'any', 'bind', 'bindAll', 'clone', 'compact', 'compose', ...]
*/
function functions(object) {
var result = [];
forIn(object, function(value, key) {
if (isFunction(value)) {
result.push(key);
}
});
return result.sort();
}
/**
* Checks if the specified object `property` exists and is a direct property,
* instead of an inherited property.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to check.
* @param {String} property The property to check for.
* @returns {Boolean} Returns `true` if key is a direct property, else `false`.
* @example
*
* _.has({ 'a': 1, 'b': 2, 'c': 3 }, 'b');
* // => true
*/
function has(object, property) {
return object ? hasOwnProperty.call(object, property) : false;
}
/**
* Creates an object composed of the inverted keys and values of the given `object`.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to invert.
* @returns {Object} Returns the created inverted object.
* @example
*
* _.invert({ 'first': 'moe', 'second': 'larry' });
* // => { 'moe': 'first', 'larry': 'second' }
*/
function invert(object) {
var index = -1,
props = keys(object),
length = props.length,
result = {};
while (++index < length) {
var key = props[index];
result[object[key]] = key;
}
return result;
}
/**
* Checks if `value` is a boolean value.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is a boolean value, else `false`.
* @example
*
* _.isBoolean(null);
* // => false
*/
function isBoolean(value) {
return value === true || value === false || toString.call(value) == boolClass;
}
/**
* Checks if `value` is a date.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is a date, else `false`.
* @example
*
* _.isDate(new Date);
* // => true
*/
function isDate(value) {
return value ? (typeof value == 'object' && toString.call(value) == dateClass) : false;
}
/**
* Checks if `value` is a DOM element.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is a DOM element, else `false`.
* @example
*
* _.isElement(document.body);
* // => true
*/
function isElement(value) {
return value ? value.nodeType === 1 : false;
}
/**
* Checks if `value` is empty. Arrays, strings, or `arguments` objects with a
* length of `0` and objects with no own enumerable properties are considered
* "empty".
*
* @static
* @memberOf _
* @category Objects
* @param {Array|Object|String} value The value to inspect.
* @returns {Boolean} Returns `true`, if the `value` is empty, else `false`.
* @example
*
* _.isEmpty([1, 2, 3]);
* // => false
*
* _.isEmpty({});
* // => true
*
* _.isEmpty('');
* // => true
*/
function isEmpty(value) {
var result = true;
if (!value) {
return result;
}
var className = toString.call(value),
length = value.length;
if ((className == arrayClass || className == stringClass ||
(support.argsClass ? className == argsClass : isArguments(value))) ||
(className == objectClass && typeof length == 'number' && isFunction(value.splice))) {
return !length;
}
forOwn(value, function() {
return (result = false);
});
return result;
}
/**
* Performs a deep comparison between two values to determine if they are
* equivalent to each other. If `callback` is passed, it will be executed to
* compare values. If `callback` returns `undefined`, comparisons will be handled
* by the method instead. The `callback` is bound to `thisArg` and invoked with
* two arguments; (a, b).
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} a The value to compare.
* @param {Mixed} b The other value to compare.
* @param {Function} [callback] The function to customize comparing values.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @param- {Array} [stackA=[]] Tracks traversed `a` objects.
* @param- {Array} [stackB=[]] Tracks traversed `b` objects.
* @returns {Boolean} Returns `true`, if the values are equivalent, else `false`.
* @example
*
* var moe = { 'name': 'moe', 'age': 40 };
* var copy = { 'name': 'moe', 'age': 40 };
*
* moe == copy;
* // => false
*
* _.isEqual(moe, copy);
* // => true
*
* var words = ['hello', 'goodbye'];
* var otherWords = ['hi', 'goodbye'];
*
* _.isEqual(words, otherWords, function(a, b) {
* var reGreet = /^(?:hello|hi)$/i,
* aGreet = _.isString(a) && reGreet.test(a),
* bGreet = _.isString(b) && reGreet.test(b);
*
* return (aGreet || bGreet) ? (aGreet == bGreet) : undefined;
* });
* // => true
*/
function isEqual(a, b, callback, thisArg, stackA, stackB) {
// used to indicate that when comparing objects, `a` has at least the properties of `b`
var whereIndicator = callback === indicatorObject;
if (typeof callback == 'function' && !whereIndicator) {
callback = lodash.createCallback(callback, thisArg, 2);
var result = callback(a, b);
if (typeof result != 'undefined') {
return !!result;
}
}
// exit early for identical values
if (a === b) {
// treat `+0` vs. `-0` as not equal
return a !== 0 || (1 / a == 1 / b);
}
var type = typeof a,
otherType = typeof b;
// exit early for unlike primitive values
if (a === a &&
(!a || (type != 'function' && type != 'object')) &&
(!b || (otherType != 'function' && otherType != 'object'))) {
return false;
}
// exit early for `null` and `undefined`, avoiding ES3's Function#call behavior
// http://es5.github.com/#x15.3.4.4
if (a == null || b == null) {
return a === b;
}
// compare [[Class]] names
var className = toString.call(a),
otherClass = toString.call(b);
if (className == argsClass) {
className = objectClass;
}
if (otherClass == argsClass) {
otherClass = objectClass;
}
if (className != otherClass) {
return false;
}
switch (className) {
case boolClass:
case dateClass:
// coerce dates and booleans to numbers, dates to milliseconds and booleans
// to `1` or `0`, treating invalid dates coerced to `NaN` as not equal
return +a == +b;
case numberClass:
// treat `NaN` vs. `NaN` as equal
return (a != +a)
? b != +b
// but treat `+0` vs. `-0` as not equal
: (a == 0 ? (1 / a == 1 / b) : a == +b);
case regexpClass:
case stringClass:
// coerce regexes to strings (http://es5.github.com/#x15.10.6.4)
// treat string primitives and their corresponding object instances as equal
return a == String(b);
}
var isArr = className == arrayClass;
if (!isArr) {
// unwrap any `lodash` wrapped values
if (hasOwnProperty.call(a, '__wrapped__ ') || hasOwnProperty.call(b, '__wrapped__')) {
return isEqual(a.__wrapped__ || a, b.__wrapped__ || b, callback, thisArg, stackA, stackB);
}
// exit for functions and DOM nodes
if (className != objectClass || (!support.nodeClass && (isNode(a) || isNode(b)))) {
return false;
}
// in older versions of Opera, `arguments` objects have `Array` constructors
var ctorA = !support.argsObject && isArguments(a) ? Object : a.constructor,
ctorB = !support.argsObject && isArguments(b) ? Object : b.constructor;
// non `Object` object instances with different constructors are not equal
if (ctorA != ctorB && !(
isFunction(ctorA) && ctorA instanceof ctorA &&
isFunction(ctorB) && ctorB instanceof ctorB
)) {
return false;
}
}
// assume cyclic structures are equal
// the algorithm for detecting cyclic structures is adapted from ES 5.1
// section 15.12.3, abstract operation `JO` (http://es5.github.com/#x15.12.3)
var initedStack = !stackA;
stackA || (stackA = getArray());
stackB || (stackB = getArray());
var length = stackA.length;
while (length--) {
if (stackA[length] == a) {
return stackB[length] == b;
}
}
var size = 0;
result = true;
// add `a` and `b` to the stack of traversed objects
stackA.push(a);
stackB.push(b);
// recursively compare objects and arrays (susceptible to call stack limits)
if (isArr) {
length = a.length;
size = b.length;
// compare lengths to determine if a deep comparison is necessary
result = size == a.length;
if (!result && !whereIndicator) {
return result;
}
// deep compare the contents, ignoring non-numeric properties
while (size--) {
var index = length,
value = b[size];
if (whereIndicator) {
while (index--) {
if ((result = isEqual(a[index], value, callback, thisArg, stackA, stackB))) {
break;
}
}
} else if (!(result = isEqual(a[size], value, callback, thisArg, stackA, stackB))) {
break;
}
}
return result;
}
// deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
// which, in this case, is more costly
forIn(b, function(value, key, b) {
if (hasOwnProperty.call(b, key)) {
// count the number of properties.
size++;
// deep compare each property value.
return (result = hasOwnProperty.call(a, key) && isEqual(a[key], value, callback, thisArg, stackA, stackB));
}
});
if (result && !whereIndicator) {
// ensure both objects have the same number of properties
forIn(a, function(value, key, a) {
if (hasOwnProperty.call(a, key)) {
// `size` will be `-1` if `a` has more properties than `b`
return (result = --size > -1);
}
});
}
if (initedStack) {
releaseArray(stackA);
releaseArray(stackB);
}
return result;
}
/**
* Checks if `value` is, or can be coerced to, a finite number.
*
* Note: This is not the same as native `isFinite`, which will return true for
* booleans and empty strings. See http://es5.github.com/#x15.1.2.5.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is finite, else `false`.
* @example
*
* _.isFinite(-101);
* // => true
*
* _.isFinite('10');
* // => true
*
* _.isFinite(true);
* // => false
*
* _.isFinite('');
* // => false
*
* _.isFinite(Infinity);
* // => false
*/
function isFinite(value) {
return nativeIsFinite(value) && !nativeIsNaN(parseFloat(value));
}
/**
* Checks if `value` is a function.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is a function, else `false`.
* @example
*
* _.isFunction(_);
* // => true
*/
function isFunction(value) {
return typeof value == 'function';
}
// fallback for older versions of Chrome and Safari
if (isFunction(/x/)) {
isFunction = function(value) {
return typeof value == 'function' && toString.call(value) == funcClass;
};
}
/**
* Checks if `value` is the language type of Object.
* (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is an object, else `false`.
* @example
*
* _.isObject({});
* // => true
*
* _.isObject([1, 2, 3]);
* // => true
*
* _.isObject(1);
* // => false
*/
function isObject(value) {
// check if the value is the ECMAScript language type of Object
// http://es5.github.com/#x8
// and avoid a V8 bug
// http://code.google.com/p/v8/issues/detail?id=2291
return !!(value && objectTypes[typeof value]);
}
/**
* Checks if `value` is `NaN`.
*
* Note: This is not the same as native `isNaN`, which will return `true` for
* `undefined` and other values. See http://es5.github.com/#x15.1.2.4.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is `NaN`, else `false`.
* @example
*
* _.isNaN(NaN);
* // => true
*
* _.isNaN(new Number(NaN));
* // => true
*
* isNaN(undefined);
* // => true
*
* _.isNaN(undefined);
* // => false
*/
function isNaN(value) {
// `NaN` as a primitive is the only value that is not equal to itself
// (perform the [[Class]] check first to avoid errors with some host objects in IE)
return isNumber(value) && value != +value
}
/**
* Checks if `value` is `null`.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is `null`, else `false`.
* @example
*
* _.isNull(null);
* // => true
*
* _.isNull(undefined);
* // => false
*/
function isNull(value) {
return value === null;
}
/**
* Checks if `value` is a number.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is a number, else `false`.
* @example
*
* _.isNumber(8.4 * 5);
* // => true
*/
function isNumber(value) {
return typeof value == 'number' || toString.call(value) == numberClass;
}
/**
* Checks if a given `value` is an object created by the `Object` constructor.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if `value` is a plain object, else `false`.
* @example
*
* function Stooge(name, age) {
* this.name = name;
* this.age = age;
* }
*
* _.isPlainObject(new Stooge('moe', 40));
* // => false
*
* _.isPlainObject([1, 2, 3]);
* // => false
*
* _.isPlainObject({ 'name': 'moe', 'age': 40 });
* // => true
*/
var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
if (!(value && toString.call(value) == objectClass) || (!support.argsClass && isArguments(value))) {
return false;
}
var valueOf = value.valueOf,
objProto = typeof valueOf == 'function' && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto);
return objProto
? (value == objProto || getPrototypeOf(value) == objProto)
: shimIsPlainObject(value);
};
/**
* Checks if `value` is a regular expression.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is a regular expression, else `false`.
* @example
*
* _.isRegExp(/moe/);
* // => true
*/
function isRegExp(value) {
return !!(value && objectTypes[typeof value]) && toString.call(value) == regexpClass;
}
/**
* Checks if `value` is a string.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is a string, else `false`.
* @example
*
* _.isString('moe');
* // => true
*/
function isString(value) {
return typeof value == 'string' || toString.call(value) == stringClass;
}
/**
* Checks if `value` is `undefined`.
*
* @static
* @memberOf _
* @category Objects
* @param {Mixed} value The value to check.
* @returns {Boolean} Returns `true`, if the `value` is `undefined`, else `false`.
* @example
*
* _.isUndefined(void 0);
* // => true
*/
function isUndefined(value) {
return typeof value == 'undefined';
}
/**
* Recursively merges own enumerable properties of the source object(s), that
* don't resolve to `undefined`, into the destination object. Subsequent sources
* will overwrite property assignments of previous sources. If a `callback` function
* is passed, it will be executed to produce the merged values of the destination
* and source properties. If `callback` returns `undefined`, merging will be
* handled by the method instead. The `callback` is bound to `thisArg` and
* invoked with two arguments; (objectValue, sourceValue).
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The destination object.
* @param {Object} [source1, source2, ...] The source objects.
* @param {Function} [callback] The function to customize merging properties.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @param- {Object} [deepIndicator] Indicates that `stackA` and `stackB` are
* arrays of traversed objects, instead of source objects.
* @param- {Array} [stackA=[]] Tracks traversed source objects.
* @param- {Array} [stackB=[]] Associates values with source counterparts.
* @returns {Object} Returns the destination object.
* @example
*
* var names = {
* 'stooges': [
* { 'name': 'moe' },
* { 'name': 'larry' }
* ]
* };
*
* var ages = {
* 'stooges': [
* { 'age': 40 },
* { 'age': 50 }
* ]
* };
*
* _.merge(names, ages);
* // => { 'stooges': [{ 'name': 'moe', 'age': 40 }, { 'name': 'larry', 'age': 50 }] }
*
* var food = {
* 'fruits': ['apple'],
* 'vegetables': ['beet']
* };
*
* var otherFood = {
* 'fruits': ['banana'],
* 'vegetables': ['carrot']
* };
*
* _.merge(food, otherFood, function(a, b) {
* return _.isArray(a) ? a.concat(b) : undefined;
* });
* // => { 'fruits': ['apple', 'banana'], 'vegetables': ['beet', 'carrot] }
*/
function merge(object, source, deepIndicator) {
var args = arguments,
index = 0,
length = 2;
if (!isObject(object)) {
return object;
}
if (deepIndicator === indicatorObject) {
var callback = args[3],
stackA = args[4],
stackB = args[5];
} else {
var initedStack = true;
stackA = getArray();
stackB = getArray();
// allows working with `_.reduce` and `_.reduceRight` without
// using their `callback` arguments, `index|key` and `collection`
if (typeof deepIndicator != 'number') {
length = args.length;
}
if (length > 3 && typeof args[length - 2] == 'function') {
callback = lodash.createCallback(args[--length - 1], args[length--], 2);
} else if (length > 2 && typeof args[length - 1] == 'function') {
callback = args[--length];
}
}
while (++index < length) {
(isArray(args[index]) ? forEach : forOwn)(args[index], function(source, key) {
var found,
isArr,
result = source,
value = object[key];
if (source && ((isArr = isArray(source)) || isPlainObject(source))) {
// avoid merging previously merged cyclic sources
var stackLength = stackA.length;
while (stackLength--) {
if ((found = stackA[stackLength] == source)) {
value = stackB[stackLength];
break;
}
}
if (!found) {
var isShallow;
if (callback) {
result = callback(value, source);
if ((isShallow = typeof result != 'undefined')) {
value = result;
}
}
if (!isShallow) {
value = isArr
? (isArray(value) ? value : [])
: (isPlainObject(value) ? value : {});
}
// add `source` and associated `value` to the stack of traversed objects
stackA.push(source);
stackB.push(value);
// recursively merge objects and arrays (susceptible to call stack limits)
if (!isShallow) {
value = merge(value, source, indicatorObject, callback, stackA, stackB);
}
}
}
else {
if (callback) {
result = callback(value, source);
if (typeof result == 'undefined') {
result = source;
}
}
if (typeof result != 'undefined') {
value = result;
}
}
object[key] = value;
});
}
if (initedStack) {
releaseArray(stackA);
releaseArray(stackB);
}
return object;
}
/**
* Creates a shallow clone of `object` excluding the specified properties.
* Property names may be specified as individual arguments or as arrays of
* property names. If a `callback` function is passed, it will be executed
* for each property in the `object`, omitting the properties `callback`
* returns truthy for. The `callback` is bound to `thisArg` and invoked
* with three arguments; (value, key, object).
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The source object.
* @param {Function|String} callback|[prop1, prop2, ...] The properties to omit
* or the function called per iteration.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns an object without the omitted properties.
* @example
*
* _.omit({ 'name': 'moe', 'age': 40 }, 'age');
* // => { 'name': 'moe' }
*
* _.omit({ 'name': 'moe', 'age': 40 }, function(value) {
* return typeof value == 'number';
* });
* // => { 'name': 'moe' }
*/
function omit(object, callback, thisArg) {
var indexOf = getIndexOf(),
isFunc = typeof callback == 'function',
result = {};
if (isFunc) {
callback = lodash.createCallback(callback, thisArg);
} else {
var props = concat.apply(arrayRef, nativeSlice.call(arguments, 1));
}
forIn(object, function(value, key, object) {
if (isFunc
? !callback(value, key, object)
: indexOf(props, key) < 0
) {
result[key] = value;
}
});
return result;
}
/**
* Creates a two dimensional array of the given object's key-value pairs,
* i.e. `[[key1, value1], [key2, value2]]`.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to inspect.
* @returns {Array} Returns new array of key-value pairs.
* @example
*
* _.pairs({ 'moe': 30, 'larry': 40 });
* // => [['moe', 30], ['larry', 40]] (order is not guaranteed)
*/
function pairs(object) {
var index = -1,
props = keys(object),
length = props.length,
result = Array(length);
while (++index < length) {
var key = props[index];
result[index] = [key, object[key]];
}
return result;
}
/**
* Creates a shallow clone of `object` composed of the specified properties.
* Property names may be specified as individual arguments or as arrays of property
* names. If `callback` is passed, it will be executed for each property in the
* `object`, picking the properties `callback` returns truthy for. The `callback`
* is bound to `thisArg` and invoked with three arguments; (value, key, object).
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The source object.
* @param {Array|Function|String} callback|[prop1, prop2, ...] The function called
* per iteration or properties to pick, either as individual arguments or arrays.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns an object composed of the picked properties.
* @example
*
* _.pick({ 'name': 'moe', '_userid': 'moe1' }, 'name');
* // => { 'name': 'moe' }
*
* _.pick({ 'name': 'moe', '_userid': 'moe1' }, function(value, key) {
* return key.charAt(0) != '_';
* });
* // => { 'name': 'moe' }
*/
function pick(object, callback, thisArg) {
var result = {};
if (typeof callback != 'function') {
var index = -1,
props = concat.apply(arrayRef, nativeSlice.call(arguments, 1)),
length = isObject(object) ? props.length : 0;
while (++index < length) {
var key = props[index];
if (key in object) {
result[key] = object[key];
}
}
} else {
callback = lodash.createCallback(callback, thisArg);
forIn(object, function(value, key, object) {
if (callback(value, key, object)) {
result[key] = value;
}
});
}
return result;
}
/**
* An alternative to `_.reduce`, this method transforms an `object` to a new
* `accumulator` object which is the result of running each of its elements
* through the `callback`, with each `callback` execution potentially mutating
* the `accumulator` object. The `callback` is bound to `thisArg` and invoked
* with four arguments; (accumulator, value, key, object). Callbacks may exit
* iteration early by explicitly returning `false`.
*
* @static
* @memberOf _
* @category Objects
* @param {Array|Object} collection The collection to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {Mixed} [accumulator] The custom accumulator value.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the accumulated value.
* @example
*
* var squares = _.transform([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], function(result, num) {
* num *= num;
* if (num % 2) {
* return result.push(num) < 3;
* }
* });
* // => [1, 9, 25]
*
* var mapped = _.transform({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
* result[key] = num * 3;
* });
* // => { 'a': 3, 'b': 6, 'c': 9 }
*/
function transform(object, callback, accumulator, thisArg) {
var isArr = isArray(object);
callback = lodash.createCallback(callback, thisArg, 4);
if (accumulator == null) {
if (isArr) {
accumulator = [];
} else {
var ctor = object && object.constructor,
proto = ctor && ctor.prototype;
accumulator = createObject(proto);
}
}
(isArr ? basicEach : forOwn)(object, function(value, index, object) {
return callback(accumulator, value, index, object);
});
return accumulator;
}
/**
* Creates an array composed of the own enumerable property values of `object`.
*
* @static
* @memberOf _
* @category Objects
* @param {Object} object The object to inspect.
* @returns {Array} Returns a new array of property values.
* @example
*
* _.values({ 'one': 1, 'two': 2, 'three': 3 });
* // => [1, 2, 3] (order is not guaranteed)
*/
function values(object) {
var index = -1,
props = keys(object),
length = props.length,
result = Array(length);
while (++index < length) {
result[index] = object[props[index]];
}
return result;
}
/*--------------------------------------------------------------------------*/
/**
* Creates an array of elements from the specified indexes, or keys, of the
* `collection`. Indexes may be specified as individual arguments or as arrays
* of indexes.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Array|Number|String} [index1, index2, ...] The indexes of
* `collection` to retrieve, either as individual arguments or arrays.
* @returns {Array} Returns a new array of elements corresponding to the
* provided indexes.
* @example
*
* _.at(['a', 'b', 'c', 'd', 'e'], [0, 2, 4]);
* // => ['a', 'c', 'e']
*
* _.at(['moe', 'larry', 'curly'], 0, 2);
* // => ['moe', 'curly']
*/
function at(collection) {
var index = -1,
props = concat.apply(arrayRef, nativeSlice.call(arguments, 1)),
length = props.length,
result = Array(length);
if (support.unindexedChars && isString(collection)) {
collection = collection.split('');
}
while(++index < length) {
result[index] = collection[props[index]];
}
return result;
}
/**
* Checks if a given `target` element is present in a `collection` using strict
* equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used
* as the offset from the end of the collection.
*
* @static
* @memberOf _
* @alias include
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Mixed} target The value to check for.
* @param {Number} [fromIndex=0] The index to search from.
* @returns {Boolean} Returns `true` if the `target` element is found, else `false`.
* @example
*
* _.contains([1, 2, 3], 1);
* // => true
*
* _.contains([1, 2, 3], 1, 2);
* // => false
*
* _.contains({ 'name': 'moe', 'age': 40 }, 'moe');
* // => true
*
* _.contains('curly', 'ur');
* // => true
*/
function contains(collection, target, fromIndex) {
var index = -1,
indexOf = getIndexOf(),
length = collection ? collection.length : 0,
result = false;
fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex) || 0;
if (length && typeof length == 'number') {
result = (isString(collection)
? collection.indexOf(target, fromIndex)
: indexOf(collection, target, fromIndex)
) > -1;
} else {
basicEach(collection, function(value) {
if (++index >= fromIndex) {
return !(result = value === target);
}
});
}
return result;
}
/**
* Creates an object composed of keys returned from running each element of the
* `collection` through the given `callback`. The corresponding value of each key
* is the number of times the key was returned by the `callback`. The `callback`
* is bound to `thisArg` and invoked with three arguments; (value, index|key, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* _.countBy([4.3, 6.1, 6.4], function(num) { return Math.floor(num); });
* // => { '4': 1, '6': 2 }
*
* _.countBy([4.3, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
* // => { '4': 1, '6': 2 }
*
* _.countBy(['one', 'two', 'three'], 'length');
* // => { '3': 2, '5': 1 }
*/
function countBy(collection, callback, thisArg) {
var result = {};
callback = lodash.createCallback(callback, thisArg);
forEach(collection, function(value, key, collection) {
key = String(callback(value, key, collection));
(hasOwnProperty.call(result, key) ? result[key]++ : result[key] = 1);
});
return result;
}
/**
* Checks if the `callback` returns a truthy value for **all** elements of a
* `collection`. The `callback` is bound to `thisArg` and invoked with three
* arguments; (value, index|key, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias all
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Boolean} Returns `true` if all elements pass the callback check,
* else `false`.
* @example
*
* _.every([true, 1, null, 'yes'], Boolean);
* // => false
*
* var stooges = [
* { 'name': 'moe', 'age': 40 },
* { 'name': 'larry', 'age': 50 }
* ];
*
* // using "_.pluck" callback shorthand
* _.every(stooges, 'age');
* // => true
*
* // using "_.where" callback shorthand
* _.every(stooges, { 'age': 50 });
* // => false
*/
function every(collection, callback, thisArg) {
var result = true;
callback = lodash.createCallback(callback, thisArg);
if (isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
if (!(result = !!callback(collection[index], index, collection))) {
break;
}
}
} else {
basicEach(collection, function(value, index, collection) {
return (result = !!callback(value, index, collection));
});
}
return result;
}
/**
* Examines each element in a `collection`, returning an array of all elements
* the `callback` returns truthy for. The `callback` is bound to `thisArg` and
* invoked with three arguments; (value, index|key, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias select
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of elements that passed the callback check.
* @example
*
* var evens = _.filter([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
* // => [2, 4, 6]
*
* var food = [
* { 'name': 'apple', 'organic': false, 'type': 'fruit' },
* { 'name': 'carrot', 'organic': true, 'type': 'vegetable' }
* ];
*
* // using "_.pluck" callback shorthand
* _.filter(food, 'organic');
* // => [{ 'name': 'carrot', 'organic': true, 'type': 'vegetable' }]
*
* // using "_.where" callback shorthand
* _.filter(food, { 'type': 'fruit' });
* // => [{ 'name': 'apple', 'organic': false, 'type': 'fruit' }]
*/
function filter(collection, callback, thisArg) {
var result = [];
callback = lodash.createCallback(callback, thisArg);
if (isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
var value = collection[index];
if (callback(value, index, collection)) {
result.push(value);
}
}
} else {
basicEach(collection, function(value, index, collection) {
if (callback(value, index, collection)) {
result.push(value);
}
});
}
return result;
}
/**
* Examines each element in a `collection`, returning the first that the `callback`
* returns truthy for. The `callback` is bound to `thisArg` and invoked with three
* arguments; (value, index|key, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias detect, findWhere
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the found element, else `undefined`.
* @example
*
* _.find([1, 2, 3, 4], function(num) {
* return num % 2 == 0;
* });
* // => 2
*
* var food = [
* { 'name': 'apple', 'organic': false, 'type': 'fruit' },
* { 'name': 'banana', 'organic': true, 'type': 'fruit' },
* { 'name': 'beet', 'organic': false, 'type': 'vegetable' }
* ];
*
* // using "_.where" callback shorthand
* _.find(food, { 'type': 'vegetable' });
* // => { 'name': 'beet', 'organic': false, 'type': 'vegetable' }
*
* // using "_.pluck" callback shorthand
* _.find(food, 'organic');
* // => { 'name': 'banana', 'organic': true, 'type': 'fruit' }
*/
function find(collection, callback, thisArg) {
callback = lodash.createCallback(callback, thisArg);
if (isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
var value = collection[index];
if (callback(value, index, collection)) {
return value;
}
}
} else {
var result;
basicEach(collection, function(value, index, collection) {
if (callback(value, index, collection)) {
result = value;
return false;
}
});
return result;
}
}
/**
* Iterates over a `collection`, executing the `callback` for each element in
* the `collection`. The `callback` is bound to `thisArg` and invoked with three
* arguments; (value, index|key, collection). Callbacks may exit iteration early
* by explicitly returning `false`.
*
* @static
* @memberOf _
* @alias each
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array|Object|String} Returns `collection`.
* @example
*
* _([1, 2, 3]).forEach(alert).join(',');
* // => alerts each number and returns '1,2,3'
*
* _.forEach({ 'one': 1, 'two': 2, 'three': 3 }, alert);
* // => alerts each number value (order is not guaranteed)
*/
function forEach(collection, callback, thisArg) {
if (callback && typeof thisArg == 'undefined' && isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
if (callback(collection[index], index, collection) === false) {
break;
}
}
} else {
basicEach(collection, callback, thisArg);
}
return collection;
}
/**
* Creates an object composed of keys returned from running each element of the
* `collection` through the `callback`. The corresponding value of each key is
* an array of elements passed to `callback` that returned the key. The `callback`
* is bound to `thisArg` and invoked with three arguments; (value, index|key, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Object} Returns the composed aggregate object.
* @example
*
* _.groupBy([4.2, 6.1, 6.4], function(num) { return Math.floor(num); });
* // => { '4': [4.2], '6': [6.1, 6.4] }
*
* _.groupBy([4.2, 6.1, 6.4], function(num) { return this.floor(num); }, Math);
* // => { '4': [4.2], '6': [6.1, 6.4] }
*
* // using "_.pluck" callback shorthand
* _.groupBy(['one', 'two', 'three'], 'length');
* // => { '3': ['one', 'two'], '5': ['three'] }
*/
function groupBy(collection, callback, thisArg) {
var result = {};
callback = lodash.createCallback(callback, thisArg);
forEach(collection, function(value, key, collection) {
key = String(callback(value, key, collection));
(hasOwnProperty.call(result, key) ? result[key] : result[key] = []).push(value);
});
return result;
}
/**
* Invokes the method named by `methodName` on each element in the `collection`,
* returning an array of the results of each invoked method. Additional arguments
* will be passed to each invoked method. If `methodName` is a function, it will
* be invoked for, and `this` bound to, each element in the `collection`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|String} methodName The name of the method to invoke or
* the function invoked per iteration.
* @param {Mixed} [arg1, arg2, ...] Arguments to invoke the method with.
* @returns {Array} Returns a new array of the results of each invoked method.
* @example
*
* _.invoke([[5, 1, 7], [3, 2, 1]], 'sort');
* // => [[1, 5, 7], [1, 2, 3]]
*
* _.invoke([123, 456], String.prototype.split, '');
* // => [['1', '2', '3'], ['4', '5', '6']]
*/
function invoke(collection, methodName) {
var args = nativeSlice.call(arguments, 2),
index = -1,
isFunc = typeof methodName == 'function',
length = collection ? collection.length : 0,
result = Array(typeof length == 'number' ? length : 0);
forEach(collection, function(value) {
result[++index] = (isFunc ? methodName : value[methodName]).apply(value, args);
});
return result;
}
/**
* Creates an array of values by running each element in the `collection`
* through the `callback`. The `callback` is bound to `thisArg` and invoked with
* three arguments; (value, index|key, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias collect
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of the results of each `callback` execution.
* @example
*
* _.map([1, 2, 3], function(num) { return num * 3; });
* // => [3, 6, 9]
*
* _.map({ 'one': 1, 'two': 2, 'three': 3 }, function(num) { return num * 3; });
* // => [3, 6, 9] (order is not guaranteed)
*
* var stooges = [
* { 'name': 'moe', 'age': 40 },
* { 'name': 'larry', 'age': 50 }
* ];
*
* // using "_.pluck" callback shorthand
* _.map(stooges, 'name');
* // => ['moe', 'larry']
*/
function map(collection, callback, thisArg) {
var index = -1,
length = collection ? collection.length : 0,
result = Array(typeof length == 'number' ? length : 0);
callback = lodash.createCallback(callback, thisArg);
if (isArray(collection)) {
while (++index < length) {
result[index] = callback(collection[index], index, collection);
}
} else {
basicEach(collection, function(value, key, collection) {
result[++index] = callback(value, key, collection);
});
}
return result;
}
/**
* Retrieves the maximum value of an `array`. If `callback` is passed,
* it will be executed for each value in the `array` to generate the
* criterion by which the value is ranked. The `callback` is bound to
* `thisArg` and invoked with three arguments; (value, index, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the maximum value.
* @example
*
* _.max([4, 2, 8, 6]);
* // => 8
*
* var stooges = [
* { 'name': 'moe', 'age': 40 },
* { 'name': 'larry', 'age': 50 }
* ];
*
* _.max(stooges, function(stooge) { return stooge.age; });
* // => { 'name': 'larry', 'age': 50 };
*
* // using "_.pluck" callback shorthand
* _.max(stooges, 'age');
* // => { 'name': 'larry', 'age': 50 };
*/
function max(collection, callback, thisArg) {
var computed = -Infinity,
result = computed;
if (!callback && isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
var value = collection[index];
if (value > result) {
result = value;
}
}
} else {
callback = (!callback && isString(collection))
? charAtCallback
: lodash.createCallback(callback, thisArg);
basicEach(collection, function(value, index, collection) {
var current = callback(value, index, collection);
if (current > computed) {
computed = current;
result = value;
}
});
}
return result;
}
/**
* Retrieves the minimum value of an `array`. If `callback` is passed,
* it will be executed for each value in the `array` to generate the
* criterion by which the value is ranked. The `callback` is bound to `thisArg`
* and invoked with three arguments; (value, index, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the minimum value.
* @example
*
* _.min([4, 2, 8, 6]);
* // => 2
*
* var stooges = [
* { 'name': 'moe', 'age': 40 },
* { 'name': 'larry', 'age': 50 }
* ];
*
* _.min(stooges, function(stooge) { return stooge.age; });
* // => { 'name': 'moe', 'age': 40 };
*
* // using "_.pluck" callback shorthand
* _.min(stooges, 'age');
* // => { 'name': 'moe', 'age': 40 };
*/
function min(collection, callback, thisArg) {
var computed = Infinity,
result = computed;
if (!callback && isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
var value = collection[index];
if (value < result) {
result = value;
}
}
} else {
callback = (!callback && isString(collection))
? charAtCallback
: lodash.createCallback(callback, thisArg);
basicEach(collection, function(value, index, collection) {
var current = callback(value, index, collection);
if (current < computed) {
computed = current;
result = value;
}
});
}
return result;
}
/**
* Retrieves the value of a specified property from all elements in the `collection`.
*
* @static
* @memberOf _
* @type Function
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {String} property The property to pluck.
* @returns {Array} Returns a new array of property values.
* @example
*
* var stooges = [
* { 'name': 'moe', 'age': 40 },
* { 'name': 'larry', 'age': 50 }
* ];
*
* _.pluck(stooges, 'name');
* // => ['moe', 'larry']
*/
var pluck = map;
/**
* Reduces a `collection` to a value which is the accumulated result of running
* each element in the `collection` through the `callback`, where each successive
* `callback` execution consumes the return value of the previous execution.
* If `accumulator` is not passed, the first element of the `collection` will be
* used as the initial `accumulator` value. The `callback` is bound to `thisArg`
* and invoked with four arguments; (accumulator, value, index|key, collection).
*
* @static
* @memberOf _
* @alias foldl, inject
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {Mixed} [accumulator] Initial value of the accumulator.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the accumulated value.
* @example
*
* var sum = _.reduce([1, 2, 3], function(sum, num) {
* return sum + num;
* });
* // => 6
*
* var mapped = _.reduce({ 'a': 1, 'b': 2, 'c': 3 }, function(result, num, key) {
* result[key] = num * 3;
* return result;
* }, {});
* // => { 'a': 3, 'b': 6, 'c': 9 }
*/
function reduce(collection, callback, accumulator, thisArg) {
var noaccum = arguments.length < 3;
callback = lodash.createCallback(callback, thisArg, 4);
if (isArray(collection)) {
var index = -1,
length = collection.length;
if (noaccum) {
accumulator = collection[++index];
}
while (++index < length) {
accumulator = callback(accumulator, collection[index], index, collection);
}
} else {
basicEach(collection, function(value, index, collection) {
accumulator = noaccum
? (noaccum = false, value)
: callback(accumulator, value, index, collection)
});
}
return accumulator;
}
/**
* This method is similar to `_.reduce`, except that it iterates over a
* `collection` from right to left.
*
* @static
* @memberOf _
* @alias foldr
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function} [callback=identity] The function called per iteration.
* @param {Mixed} [accumulator] Initial value of the accumulator.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the accumulated value.
* @example
*
* var list = [[0, 1], [2, 3], [4, 5]];
* var flat = _.reduceRight(list, function(a, b) { return a.concat(b); }, []);
* // => [4, 5, 2, 3, 0, 1]
*/
function reduceRight(collection, callback, accumulator, thisArg) {
var iterable = collection,
length = collection ? collection.length : 0,
noaccum = arguments.length < 3;
if (typeof length != 'number') {
var props = keys(collection);
length = props.length;
} else if (support.unindexedChars && isString(collection)) {
iterable = collection.split('');
}
callback = lodash.createCallback(callback, thisArg, 4);
forEach(collection, function(value, index, collection) {
index = props ? props[--length] : --length;
accumulator = noaccum
? (noaccum = false, iterable[index])
: callback(accumulator, iterable[index], index, collection);
});
return accumulator;
}
/**
* The opposite of `_.filter`, this method returns the elements of a
* `collection` that `callback` does **not** return truthy for.
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of elements that did **not** pass the
* callback check.
* @example
*
* var odds = _.reject([1, 2, 3, 4, 5, 6], function(num) { return num % 2 == 0; });
* // => [1, 3, 5]
*
* var food = [
* { 'name': 'apple', 'organic': false, 'type': 'fruit' },
* { 'name': 'carrot', 'organic': true, 'type': 'vegetable' }
* ];
*
* // using "_.pluck" callback shorthand
* _.reject(food, 'organic');
* // => [{ 'name': 'apple', 'organic': false, 'type': 'fruit' }]
*
* // using "_.where" callback shorthand
* _.reject(food, { 'type': 'fruit' });
* // => [{ 'name': 'carrot', 'organic': true, 'type': 'vegetable' }]
*/
function reject(collection, callback, thisArg) {
callback = lodash.createCallback(callback, thisArg);
return filter(collection, function(value, index, collection) {
return !callback(value, index, collection);
});
}
/**
* Creates an array of shuffled `array` values, using a version of the
* Fisher-Yates shuffle. See http://en.wikipedia.org/wiki/Fisher-Yates_shuffle.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to shuffle.
* @returns {Array} Returns a new shuffled collection.
* @example
*
* _.shuffle([1, 2, 3, 4, 5, 6]);
* // => [4, 1, 6, 3, 5, 2]
*/
function shuffle(collection) {
var index = -1,
length = collection ? collection.length : 0,
result = Array(typeof length == 'number' ? length : 0);
forEach(collection, function(value) {
var rand = floor(nativeRandom() * (++index + 1));
result[index] = result[rand];
result[rand] = value;
});
return result;
}
/**
* Gets the size of the `collection` by returning `collection.length` for arrays
* and array-like objects or the number of own enumerable properties for objects.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to inspect.
* @returns {Number} Returns `collection.length` or number of own enumerable properties.
* @example
*
* _.size([1, 2]);
* // => 2
*
* _.size({ 'one': 1, 'two': 2, 'three': 3 });
* // => 3
*
* _.size('curly');
* // => 5
*/
function size(collection) {
var length = collection ? collection.length : 0;
return typeof length == 'number' ? length : keys(collection).length;
}
/**
* Checks if the `callback` returns a truthy value for **any** element of a
* `collection`. The function returns as soon as it finds passing value, and
* does not iterate over the entire `collection`. The `callback` is bound to
* `thisArg` and invoked with three arguments; (value, index|key, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias any
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Boolean} Returns `true` if any element passes the callback check,
* else `false`.
* @example
*
* _.some([null, 0, 'yes', false], Boolean);
* // => true
*
* var food = [
* { 'name': 'apple', 'organic': false, 'type': 'fruit' },
* { 'name': 'carrot', 'organic': true, 'type': 'vegetable' }
* ];
*
* // using "_.pluck" callback shorthand
* _.some(food, 'organic');
* // => true
*
* // using "_.where" callback shorthand
* _.some(food, { 'type': 'meat' });
* // => false
*/
function some(collection, callback, thisArg) {
var result;
callback = lodash.createCallback(callback, thisArg);
if (isArray(collection)) {
var index = -1,
length = collection.length;
while (++index < length) {
if ((result = callback(collection[index], index, collection))) {
break;
}
}
} else {
basicEach(collection, function(value, index, collection) {
return !(result = callback(value, index, collection));
});
}
return !!result;
}
/**
* Creates an array of elements, sorted in ascending order by the results of
* running each element in the `collection` through the `callback`. This method
* performs a stable sort, that is, it will preserve the original sort order of
* equal elements. The `callback` is bound to `thisArg` and invoked with three
* arguments; (value, index|key, collection).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of sorted elements.
* @example
*
* _.sortBy([1, 2, 3], function(num) { return Math.sin(num); });
* // => [3, 1, 2]
*
* _.sortBy([1, 2, 3], function(num) { return this.sin(num); }, Math);
* // => [3, 1, 2]
*
* // using "_.pluck" callback shorthand
* _.sortBy(['banana', 'strawberry', 'apple'], 'length');
* // => ['apple', 'banana', 'strawberry']
*/
function sortBy(collection, callback, thisArg) {
var index = -1,
length = collection ? collection.length : 0,
result = Array(typeof length == 'number' ? length : 0);
callback = lodash.createCallback(callback, thisArg);
forEach(collection, function(value, key, collection) {
var object = result[++index] = getObject();
object.criteria = callback(value, key, collection);
object.index = index;
object.value = value;
});
length = result.length;
result.sort(compareAscending);
while (length--) {
var object = result[length];
result[length] = object.value;
releaseObject(object);
}
return result;
}
/**
* Converts the `collection` to an array.
*
* @static
* @memberOf _
* @category Collections
* @param {Array|Object|String} collection The collection to convert.
* @returns {Array} Returns the new converted array.
* @example
*
* (function() { return _.toArray(arguments).slice(1); })(1, 2, 3, 4);
* // => [2, 3, 4]
*/
function toArray(collection) {
if (collection && typeof collection.length == 'number') {
return (support.unindexedChars && isString(collection))
? collection.split('')
: slice(collection);
}
return values(collection);
}
/**
* Examines each element in a `collection`, returning an array of all elements
* that have the given `properties`. When checking `properties`, this method
* performs a deep comparison between values to determine if they are equivalent
* to each other.
*
* @static
* @memberOf _
* @type Function
* @category Collections
* @param {Array|Object|String} collection The collection to iterate over.
* @param {Object} properties The object of property values to filter by.
* @returns {Array} Returns a new array of elements that have the given `properties`.
* @example
*
* var stooges = [
* { 'name': 'moe', 'age': 40 },
* { 'name': 'larry', 'age': 50 }
* ];
*
* _.where(stooges, { 'age': 40 });
* // => [{ 'name': 'moe', 'age': 40 }]
*/
var where = filter;
/*--------------------------------------------------------------------------*/
/**
* Creates an array with all falsey values of `array` removed. The values
* `false`, `null`, `0`, `""`, `undefined` and `NaN` are all falsey.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to compact.
* @returns {Array} Returns a new filtered array.
* @example
*
* _.compact([0, 1, false, 2, '', 3]);
* // => [1, 2, 3]
*/
function compact(array) {
var index = -1,
length = array ? array.length : 0,
result = [];
while (++index < length) {
var value = array[index];
if (value) {
result.push(value);
}
}
return result;
}
/**
* Creates an array of `array` elements not present in the other arrays
* using strict equality for comparisons, i.e. `===`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to process.
* @param {Array} [array1, array2, ...] Arrays to check.
* @returns {Array} Returns a new array of `array` elements not present in the
* other arrays.
* @example
*
* _.difference([1, 2, 3, 4, 5], [5, 2, 10]);
* // => [1, 3, 4]
*/
function difference(array) {
var index = -1,
indexOf = getIndexOf(),
length = array ? array.length : 0,
seen = concat.apply(arrayRef, nativeSlice.call(arguments, 1)),
result = [];
var isLarge = length >= largeArraySize && indexOf === basicIndexOf;
if (isLarge) {
var cache = createCache(seen);
if (cache) {
indexOf = cacheIndexOf;
seen = cache;
} else {
isLarge = false;
}
}
while (++index < length) {
var value = array[index];
if (indexOf(seen, value) < 0) {
result.push(value);
}
}
if (isLarge) {
releaseObject(seen);
}
return result;
}
/**
* This method is similar to `_.find`, except that it returns the index of
* the element that passes the callback check, instead of the element itself.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to search.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the index of the found element, else `-1`.
* @example
*
* _.findIndex(['apple', 'banana', 'beet'], function(food) {
* return /^b/.test(food);
* });
* // => 1
*/
function findIndex(array, callback, thisArg) {
var index = -1,
length = array ? array.length : 0;
callback = lodash.createCallback(callback, thisArg);
while (++index < length) {
if (callback(array[index], index, array)) {
return index;
}
}
return -1;
}
/**
* Gets the first element of the `array`. If a number `n` is passed, the first
* `n` elements of the `array` are returned. If a `callback` function is passed,
* elements at the beginning of the array are returned as long as the `callback`
* returns truthy. The `callback` is bound to `thisArg` and invoked with three
* arguments; (value, index, array).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias head, take
* @category Arrays
* @param {Array} array The array to query.
* @param {Function|Object|Number|String} [callback|n] The function called
* per element or the number of elements to return. If a property name or
* object is passed, it will be used to create a "_.pluck" or "_.where"
* style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the first element(s) of `array`.
* @example
*
* _.first([1, 2, 3]);
* // => 1
*
* _.first([1, 2, 3], 2);
* // => [1, 2]
*
* _.first([1, 2, 3], function(num) {
* return num < 3;
* });
* // => [1, 2]
*
* var food = [
* { 'name': 'banana', 'organic': true },
* { 'name': 'beet', 'organic': false },
* ];
*
* // using "_.pluck" callback shorthand
* _.first(food, 'organic');
* // => [{ 'name': 'banana', 'organic': true }]
*
* var food = [
* { 'name': 'apple', 'type': 'fruit' },
* { 'name': 'banana', 'type': 'fruit' },
* { 'name': 'beet', 'type': 'vegetable' }
* ];
*
* // using "_.where" callback shorthand
* _.first(food, { 'type': 'fruit' });
* // => [{ 'name': 'apple', 'type': 'fruit' }, { 'name': 'banana', 'type': 'fruit' }]
*/
function first(array, callback, thisArg) {
if (array) {
var n = 0,
length = array.length;
if (typeof callback != 'number' && callback != null) {
var index = -1;
callback = lodash.createCallback(callback, thisArg);
while (++index < length && callback(array[index], index, array)) {
n++;
}
} else {
n = callback;
if (n == null || thisArg) {
return array[0];
}
}
return slice(array, 0, nativeMin(nativeMax(0, n), length));
}
}
/**
* Flattens a nested array (the nesting can be to any depth). If `isShallow`
* is truthy, `array` will only be flattened a single level. If `callback`
* is passed, each element of `array` is passed through a `callback` before
* flattening. The `callback` is bound to `thisArg` and invoked with three
* arguments; (value, index, array).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to flatten.
* @param {Boolean} [isShallow=false] A flag to indicate only flattening a single level.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new flattened array.
* @example
*
* _.flatten([1, [2], [3, [[4]]]]);
* // => [1, 2, 3, 4];
*
* _.flatten([1, [2], [3, [[4]]]], true);
* // => [1, 2, 3, [[4]]];
*
* var stooges = [
* { 'name': 'curly', 'quotes': ['Oh, a wise guy, eh?', 'Poifect!'] },
* { 'name': 'moe', 'quotes': ['Spread out!', 'You knucklehead!'] }
* ];
*
* // using "_.pluck" callback shorthand
* _.flatten(stooges, 'quotes');
* // => ['Oh, a wise guy, eh?', 'Poifect!', 'Spread out!', 'You knucklehead!']
*/
var flatten = overloadWrapper(function flatten(array, isShallow, callback) {
var index = -1,
length = array ? array.length : 0,
result = [];
while (++index < length) {
var value = array[index];
if (callback) {
value = callback(value, index, array);
}
// recursively flatten arrays (susceptible to call stack limits)
if (isArray(value)) {
push.apply(result, isShallow ? value : flatten(value));
} else {
result.push(value);
}
}
return result;
});
/**
* Gets the index at which the first occurrence of `value` is found using
* strict equality for comparisons, i.e. `===`. If the `array` is already
* sorted, passing `true` for `fromIndex` will run a faster binary search.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to search.
* @param {Mixed} value The value to search for.
* @param {Boolean|Number} [fromIndex=0] The index to search from or `true` to
* perform a binary search on a sorted `array`.
* @returns {Number} Returns the index of the matched value or `-1`.
* @example
*
* _.indexOf([1, 2, 3, 1, 2, 3], 2);
* // => 1
*
* _.indexOf([1, 2, 3, 1, 2, 3], 2, 3);
* // => 4
*
* _.indexOf([1, 1, 2, 2, 3, 3], 2, true);
* // => 2
*/
function indexOf(array, value, fromIndex) {
if (typeof fromIndex == 'number') {
var length = array ? array.length : 0;
fromIndex = (fromIndex < 0 ? nativeMax(0, length + fromIndex) : fromIndex || 0);
} else if (fromIndex) {
var index = sortedIndex(array, value);
return array[index] === value ? index : -1;
}
return array ? basicIndexOf(array, value, fromIndex) : -1;
}
/**
* Gets all but the last element of `array`. If a number `n` is passed, the
* last `n` elements are excluded from the result. If a `callback` function
* is passed, elements at the end of the array are excluded from the result
* as long as the `callback` returns truthy. The `callback` is bound to
* `thisArg` and invoked with three arguments; (value, index, array).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to query.
* @param {Function|Object|Number|String} [callback|n=1] The function called
* per element or the number of elements to exclude. If a property name or
* object is passed, it will be used to create a "_.pluck" or "_.where"
* style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a slice of `array`.
* @example
*
* _.initial([1, 2, 3]);
* // => [1, 2]
*
* _.initial([1, 2, 3], 2);
* // => [1]
*
* _.initial([1, 2, 3], function(num) {
* return num > 1;
* });
* // => [1]
*
* var food = [
* { 'name': 'beet', 'organic': false },
* { 'name': 'carrot', 'organic': true }
* ];
*
* // using "_.pluck" callback shorthand
* _.initial(food, 'organic');
* // => [{ 'name': 'beet', 'organic': false }]
*
* var food = [
* { 'name': 'banana', 'type': 'fruit' },
* { 'name': 'beet', 'type': 'vegetable' },
* { 'name': 'carrot', 'type': 'vegetable' }
* ];
*
* // using "_.where" callback shorthand
* _.initial(food, { 'type': 'vegetable' });
* // => [{ 'name': 'banana', 'type': 'fruit' }]
*/
function initial(array, callback, thisArg) {
if (!array) {
return [];
}
var n = 0,
length = array.length;
if (typeof callback != 'number' && callback != null) {
var index = length;
callback = lodash.createCallback(callback, thisArg);
while (index-- && callback(array[index], index, array)) {
n++;
}
} else {
n = (callback == null || thisArg) ? 1 : callback || n;
}
return slice(array, 0, nativeMin(nativeMax(0, length - n), length));
}
/**
* Computes the intersection of all the passed-in arrays using strict equality
* for comparisons, i.e. `===`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} [array1, array2, ...] Arrays to process.
* @returns {Array} Returns a new array of unique elements that are present
* in **all** of the arrays.
* @example
*
* _.intersection([1, 2, 3], [101, 2, 1, 10], [2, 1]);
* // => [1, 2]
*/
function intersection(array) {
var args = arguments,
argsLength = args.length,
argsIndex = -1,
caches = getArray(),
index = -1,
indexOf = getIndexOf(),
length = array ? array.length : 0,
result = [],
seen = getArray();
while (++argsIndex < argsLength) {
var value = args[argsIndex];
caches[argsIndex] = indexOf === basicIndexOf &&
(value ? value.length : 0) >= largeArraySize &&
createCache(argsIndex ? args[argsIndex] : seen);
}
outer:
while (++index < length) {
var cache = caches[0];
value = array[index];
if ((cache ? cacheIndexOf(cache, value) : indexOf(seen, value)) < 0) {
argsIndex = argsLength;
(cache || seen).push(value);
while (--argsIndex) {
cache = caches[argsIndex];
if ((cache ? cacheIndexOf(cache, value) : indexOf(args[argsIndex], value)) < 0) {
continue outer;
}
}
result.push(value);
}
}
while (argsLength--) {
cache = caches[argsLength];
if (cache) {
releaseObject(cache);
}
}
releaseArray(caches);
releaseArray(seen);
return result;
}
/**
* Gets the last element of the `array`. If a number `n` is passed, the
* last `n` elements of the `array` are returned. If a `callback` function
* is passed, elements at the end of the array are returned as long as the
* `callback` returns truthy. The `callback` is bound to `thisArg` and
* invoked with three arguments;(value, index, array).
*
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to query.
* @param {Function|Object|Number|String} [callback|n] The function called
* per element or the number of elements to return. If a property name or
* object is passed, it will be used to create a "_.pluck" or "_.where"
* style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Mixed} Returns the last element(s) of `array`.
* @example
*
* _.last([1, 2, 3]);
* // => 3
*
* _.last([1, 2, 3], 2);
* // => [2, 3]
*
* _.last([1, 2, 3], function(num) {
* return num > 1;
* });
* // => [2, 3]
*
* var food = [
* { 'name': 'beet', 'organic': false },
* { 'name': 'carrot', 'organic': true }
* ];
*
* // using "_.pluck" callback shorthand
* _.last(food, 'organic');
* // => [{ 'name': 'carrot', 'organic': true }]
*
* var food = [
* { 'name': 'banana', 'type': 'fruit' },
* { 'name': 'beet', 'type': 'vegetable' },
* { 'name': 'carrot', 'type': 'vegetable' }
* ];
*
* // using "_.where" callback shorthand
* _.last(food, { 'type': 'vegetable' });
* // => [{ 'name': 'beet', 'type': 'vegetable' }, { 'name': 'carrot', 'type': 'vegetable' }]
*/
function last(array, callback, thisArg) {
if (array) {
var n = 0,
length = array.length;
if (typeof callback != 'number' && callback != null) {
var index = length;
callback = lodash.createCallback(callback, thisArg);
while (index-- && callback(array[index], index, array)) {
n++;
}
} else {
n = callback;
if (n == null || thisArg) {
return array[length - 1];
}
}
return slice(array, nativeMax(0, length - n));
}
}
/**
* Gets the index at which the last occurrence of `value` is found using strict
* equality for comparisons, i.e. `===`. If `fromIndex` is negative, it is used
* as the offset from the end of the collection.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to search.
* @param {Mixed} value The value to search for.
* @param {Number} [fromIndex=array.length-1] The index to search from.
* @returns {Number} Returns the index of the matched value or `-1`.
* @example
*
* _.lastIndexOf([1, 2, 3, 1, 2, 3], 2);
* // => 4
*
* _.lastIndexOf([1, 2, 3, 1, 2, 3], 2, 3);
* // => 1
*/
function lastIndexOf(array, value, fromIndex) {
var index = array ? array.length : 0;
if (typeof fromIndex == 'number') {
index = (fromIndex < 0 ? nativeMax(0, index + fromIndex) : nativeMin(fromIndex, index - 1)) + 1;
}
while (index--) {
if (array[index] === value) {
return index;
}
}
return -1;
}
/**
* Creates an array of numbers (positive and/or negative) progressing from
* `start` up to but not including `end`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Number} [start=0] The start of the range.
* @param {Number} end The end of the range.
* @param {Number} [step=1] The value to increment or decrement by.
* @returns {Array} Returns a new range array.
* @example
*
* _.range(10);
* // => [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
*
* _.range(1, 11);
* // => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
*
* _.range(0, 30, 5);
* // => [0, 5, 10, 15, 20, 25]
*
* _.range(0, -10, -1);
* // => [0, -1, -2, -3, -4, -5, -6, -7, -8, -9]
*
* _.range(0);
* // => []
*/
function range(start, end, step) {
start = +start || 0;
step = +step || 1;
if (end == null) {
end = start;
start = 0;
}
// use `Array(length)` so V8 will avoid the slower "dictionary" mode
// http://youtu.be/XAqIpGU8ZZk#t=17m25s
var index = -1,
length = nativeMax(0, ceil((end - start) / step)),
result = Array(length);
while (++index < length) {
result[index] = start;
start += step;
}
return result;
}
/**
* The opposite of `_.initial`, this method gets all but the first value of
* `array`. If a number `n` is passed, the first `n` values are excluded from
* the result. If a `callback` function is passed, elements at the beginning
* of the array are excluded from the result as long as the `callback` returns
* truthy. The `callback` is bound to `thisArg` and invoked with three
* arguments; (value, index, array).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias drop, tail
* @category Arrays
* @param {Array} array The array to query.
* @param {Function|Object|Number|String} [callback|n=1] The function called
* per element or the number of elements to exclude. If a property name or
* object is passed, it will be used to create a "_.pluck" or "_.where"
* style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a slice of `array`.
* @example
*
* _.rest([1, 2, 3]);
* // => [2, 3]
*
* _.rest([1, 2, 3], 2);
* // => [3]
*
* _.rest([1, 2, 3], function(num) {
* return num < 3;
* });
* // => [3]
*
* var food = [
* { 'name': 'banana', 'organic': true },
* { 'name': 'beet', 'organic': false },
* ];
*
* // using "_.pluck" callback shorthand
* _.rest(food, 'organic');
* // => [{ 'name': 'beet', 'organic': false }]
*
* var food = [
* { 'name': 'apple', 'type': 'fruit' },
* { 'name': 'banana', 'type': 'fruit' },
* { 'name': 'beet', 'type': 'vegetable' }
* ];
*
* // using "_.where" callback shorthand
* _.rest(food, { 'type': 'fruit' });
* // => [{ 'name': 'beet', 'type': 'vegetable' }]
*/
function rest(array, callback, thisArg) {
if (typeof callback != 'number' && callback != null) {
var n = 0,
index = -1,
length = array ? array.length : 0;
callback = lodash.createCallback(callback, thisArg);
while (++index < length && callback(array[index], index, array)) {
n++;
}
} else {
n = (callback == null || thisArg) ? 1 : nativeMax(0, callback);
}
return slice(array, n);
}
/**
* Uses a binary search to determine the smallest index at which the `value`
* should be inserted into `array` in order to maintain the sort order of the
* sorted `array`. If `callback` is passed, it will be executed for `value` and
* each element in `array` to compute their sort ranking. The `callback` is
* bound to `thisArg` and invoked with one argument; (value).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to inspect.
* @param {Mixed} value The value to evaluate.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Number} Returns the index at which the value should be inserted
* into `array`.
* @example
*
* _.sortedIndex([20, 30, 50], 40);
* // => 2
*
* // using "_.pluck" callback shorthand
* _.sortedIndex([{ 'x': 20 }, { 'x': 30 }, { 'x': 50 }], { 'x': 40 }, 'x');
* // => 2
*
* var dict = {
* 'wordToNumber': { 'twenty': 20, 'thirty': 30, 'fourty': 40, 'fifty': 50 }
* };
*
* _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
* return dict.wordToNumber[word];
* });
* // => 2
*
* _.sortedIndex(['twenty', 'thirty', 'fifty'], 'fourty', function(word) {
* return this.wordToNumber[word];
* }, dict);
* // => 2
*/
function sortedIndex(array, value, callback, thisArg) {
var low = 0,
high = array ? array.length : low;
// explicitly reference `identity` for better inlining in Firefox
callback = callback ? lodash.createCallback(callback, thisArg, 1) : identity;
value = callback(value);
while (low < high) {
var mid = (low + high) >>> 1;
(callback(array[mid]) < value)
? low = mid + 1
: high = mid;
}
return low;
}
/**
* Computes the union of the passed-in arrays using strict equality for
* comparisons, i.e. `===`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} [array1, array2, ...] Arrays to process.
* @returns {Array} Returns a new array of unique values, in order, that are
* present in one or more of the arrays.
* @example
*
* _.union([1, 2, 3], [101, 2, 1, 10], [2, 1]);
* // => [1, 2, 3, 101, 10]
*/
function union(array) {
if (!isArray(array)) {
arguments[0] = array ? nativeSlice.call(array) : arrayRef;
}
return uniq(concat.apply(arrayRef, arguments));
}
/**
* Creates a duplicate-value-free version of the `array` using strict equality
* for comparisons, i.e. `===`. If the `array` is already sorted, passing `true`
* for `isSorted` will run a faster algorithm. If `callback` is passed, each
* element of `array` is passed through the `callback` before uniqueness is computed.
* The `callback` is bound to `thisArg` and invoked with three arguments; (value, index, array).
*
* If a property name is passed for `callback`, the created "_.pluck" style
* callback will return the property value of the given element.
*
* If an object is passed for `callback`, the created "_.where" style callback
* will return `true` for elements that have the properties of the given object,
* else `false`.
*
* @static
* @memberOf _
* @alias unique
* @category Arrays
* @param {Array} array The array to process.
* @param {Boolean} [isSorted=false] A flag to indicate that the `array` is already sorted.
* @param {Function|Object|String} [callback=identity] The function called per
* iteration. If a property name or object is passed, it will be used to create
* a "_.pluck" or "_.where" style callback, respectively.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a duplicate-value-free array.
* @example
*
* _.uniq([1, 2, 1, 3, 1]);
* // => [1, 2, 3]
*
* _.uniq([1, 1, 2, 2, 3], true);
* // => [1, 2, 3]
*
* _.uniq(['A', 'b', 'C', 'a', 'B', 'c'], function(letter) { return letter.toLowerCase(); });
* // => ['A', 'b', 'C']
*
* _.uniq([1, 2.5, 3, 1.5, 2, 3.5], function(num) { return this.floor(num); }, Math);
* // => [1, 2.5, 3]
*
* // using "_.pluck" callback shorthand
* _.uniq([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
* // => [{ 'x': 1 }, { 'x': 2 }]
*/
var uniq = overloadWrapper(function(array, isSorted, callback) {
var index = -1,
indexOf = getIndexOf(),
length = array ? array.length : 0,
result = [];
var isLarge = !isSorted && length >= largeArraySize && indexOf === basicIndexOf,
seen = (callback || isLarge) ? getArray() : result;
if (isLarge) {
var cache = createCache(seen);
if (cache) {
indexOf = cacheIndexOf;
seen = cache;
} else {
isLarge = false;
seen = callback ? seen : (releaseArray(seen), result);
}
}
while (++index < length) {
var value = array[index],
computed = callback ? callback(value, index, array) : value;
if (isSorted
? !index || seen[seen.length - 1] !== computed
: indexOf(seen, computed) < 0
) {
if (callback || isLarge) {
seen.push(computed);
}
result.push(value);
}
}
if (isLarge) {
releaseArray(seen.array);
releaseObject(seen);
} else if (callback) {
releaseArray(seen);
}
return result;
});
/**
* The inverse of `_.zip`, this method splits groups of elements into arrays
* composed of elements from each group at their corresponding indexes.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to process.
* @returns {Array} Returns a new array of the composed arrays.
* @example
*
* _.unzip([['moe', 30, true], ['larry', 40, false]]);
* // => [['moe', 'larry'], [30, 40], [true, false]];
*/
function unzip(array) {
var index = -1,
length = array ? max(pluck(array, 'length')) : 0,
result = Array(length < 0 ? 0 : length);
while (++index < length) {
result[index] = pluck(array, index);
}
return result;
}
/**
* Creates an array with all occurrences of the passed values removed using
* strict equality for comparisons, i.e. `===`.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} array The array to filter.
* @param {Mixed} [value1, value2, ...] Values to remove.
* @returns {Array} Returns a new filtered array.
* @example
*
* _.without([1, 2, 1, 0, 3, 1, 4], 0, 1);
* // => [2, 3, 4]
*/
function without(array) {
return difference(array, nativeSlice.call(arguments, 1));
}
/**
* Groups the elements of each array at their corresponding indexes. Useful for
* separate data sources that are coordinated through matching array indexes.
* For a matrix of nested arrays, `_.zip.apply(...)` can transpose the matrix
* in a similar fashion.
*
* @static
* @memberOf _
* @category Arrays
* @param {Array} [array1, array2, ...] Arrays to process.
* @returns {Array} Returns a new array of grouped elements.
* @example
*
* _.zip(['moe', 'larry'], [30, 40], [true, false]);
* // => [['moe', 30, true], ['larry', 40, false]]
*/
function zip(array) {
return array ? unzip(arguments) : [];
}
/**
* Creates an object composed from arrays of `keys` and `values`. Pass either
* a single two dimensional array, i.e. `[[key1, value1], [key2, value2]]`, or
* two arrays, one of `keys` and one of corresponding `values`.
*
* @static
* @memberOf _
* @alias object
* @category Arrays
* @param {Array} keys The array of keys.
* @param {Array} [values=[]] The array of values.
* @returns {Object} Returns an object composed of the given keys and
* corresponding values.
* @example
*
* _.zipObject(['moe', 'larry'], [30, 40]);
* // => { 'moe': 30, 'larry': 40 }
*/
function zipObject(keys, values) {
var index = -1,
length = keys ? keys.length : 0,
result = {};
while (++index < length) {
var key = keys[index];
if (values) {
result[key] = values[index];
} else {
result[key[0]] = key[1];
}
}
return result;
}
/*--------------------------------------------------------------------------*/
/**
* If `n` is greater than `0`, a function is created that is restricted to
* executing `func`, with the `this` binding and arguments of the created
* function, only after it is called `n` times. If `n` is less than `1`,
* `func` is executed immediately, without a `this` binding or additional
* arguments, and its result is returned.
*
* @static
* @memberOf _
* @category Functions
* @param {Number} n The number of times the function must be called before
* it is executed.
* @param {Function} func The function to restrict.
* @returns {Function} Returns the new restricted function.
* @example
*
* var renderNotes = _.after(notes.length, render);
* _.forEach(notes, function(note) {
* note.asyncSave({ 'success': renderNotes });
* });
* // `renderNotes` is run once, after all notes have saved
*/
function after(n, func) {
if (n < 1) {
return func();
}
return function() {
if (--n < 1) {
return func.apply(this, arguments);
}
};
}
/**
* Creates a function that, when called, invokes `func` with the `this`
* binding of `thisArg` and prepends any additional `bind` arguments to those
* passed to the bound function.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to bind.
* @param {Mixed} [thisArg] The `this` binding of `func`.
* @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied.
* @returns {Function} Returns the new bound function.
* @example
*
* var func = function(greeting) {
* return greeting + ' ' + this.name;
* };
*
* func = _.bind(func, { 'name': 'moe' }, 'hi');
* func();
* // => 'hi moe'
*/
function bind(func, thisArg) {
// use `Function#bind` if it exists and is fast
// (in V8 `Function#bind` is slower except when partially applied)
return support.fastBind || (nativeBind && arguments.length > 2)
? nativeBind.call.apply(nativeBind, arguments)
: createBound(func, thisArg, nativeSlice.call(arguments, 2));
}
/**
* Binds methods on `object` to `object`, overwriting the existing method.
* Method names may be specified as individual arguments or as arrays of method
* names. If no method names are provided, all the function properties of `object`
* will be bound.
*
* @static
* @memberOf _
* @category Functions
* @param {Object} object The object to bind and assign the bound methods to.
* @param {String} [methodName1, methodName2, ...] Method names on the object to bind.
* @returns {Object} Returns `object`.
* @example
*
* var view = {
* 'label': 'docs',
* 'onClick': function() { alert('clicked ' + this.label); }
* };
*
* _.bindAll(view);
* jQuery('#docs').on('click', view.onClick);
* // => alerts 'clicked docs', when the button is clicked
*/
function bindAll(object) {
var funcs = arguments.length > 1 ? concat.apply(arrayRef, nativeSlice.call(arguments, 1)) : functions(object),
index = -1,
length = funcs.length;
while (++index < length) {
var key = funcs[index];
object[key] = bind(object[key], object);
}
return object;
}
/**
* Creates a function that, when called, invokes the method at `object[key]`
* and prepends any additional `bindKey` arguments to those passed to the bound
* function. This method differs from `_.bind` by allowing bound functions to
* reference methods that will be redefined or don't yet exist.
* See http://michaux.ca/articles/lazy-function-definition-pattern.
*
* @static
* @memberOf _
* @category Functions
* @param {Object} object The object the method belongs to.
* @param {String} key The key of the method.
* @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied.
* @returns {Function} Returns the new bound function.
* @example
*
* var object = {
* 'name': 'moe',
* 'greet': function(greeting) {
* return greeting + ' ' + this.name;
* }
* };
*
* var func = _.bindKey(object, 'greet', 'hi');
* func();
* // => 'hi moe'
*
* object.greet = function(greeting) {
* return greeting + ', ' + this.name + '!';
* };
*
* func();
* // => 'hi, moe!'
*/
function bindKey(object, key) {
return createBound(object, key, nativeSlice.call(arguments, 2), indicatorObject);
}
/**
* Creates a function that is the composition of the passed functions,
* where each function consumes the return value of the function that follows.
* For example, composing the functions `f()`, `g()`, and `h()` produces `f(g(h()))`.
* Each function is executed with the `this` binding of the composed function.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} [func1, func2, ...] Functions to compose.
* @returns {Function} Returns the new composed function.
* @example
*
* var greet = function(name) { return 'hi ' + name; };
* var exclaim = function(statement) { return statement + '!'; };
* var welcome = _.compose(exclaim, greet);
* welcome('moe');
* // => 'hi moe!'
*/
function compose() {
var funcs = arguments;
return function() {
var args = arguments,
length = funcs.length;
while (length--) {
args = [funcs[length].apply(this, args)];
}
return args[0];
};
}
/**
* Produces a callback bound to an optional `thisArg`. If `func` is a property
* name, the created callback will return the property value for a given element.
* If `func` is an object, the created callback will return `true` for elements
* that contain the equivalent object properties, otherwise it will return `false`.
*
* Note: All Lo-Dash methods, that accept a `callback` argument, use `_.createCallback`.
*
* @static
* @memberOf _
* @category Functions
* @param {Mixed} [func=identity] The value to convert to a callback.
* @param {Mixed} [thisArg] The `this` binding of the created callback.
* @param {Number} [argCount=3] The number of arguments the callback accepts.
* @returns {Function} Returns a callback function.
* @example
*
* var stooges = [
* { 'name': 'moe', 'age': 40 },
* { 'name': 'larry', 'age': 50 }
* ];
*
* // wrap to create custom callback shorthands
* _.createCallback = _.wrap(_.createCallback, function(func, callback, thisArg) {
* var match = /^(.+?)__([gl]t)(.+)$/.exec(callback);
* return !match ? func(callback, thisArg) : function(object) {
* return match[2] == 'gt' ? object[match[1]] > match[3] : object[match[1]] < match[3];
* };
* });
*
* _.filter(stooges, 'age__gt45');
* // => [{ 'name': 'larry', 'age': 50 }]
*
* // create mixins with support for "_.pluck" and "_.where" callback shorthands
* _.mixin({
* 'toLookup': function(collection, callback, thisArg) {
* callback = _.createCallback(callback, thisArg);
* return _.reduce(collection, function(result, value, index, collection) {
* return (result[callback(value, index, collection)] = value, result);
* }, {});
* }
* });
*
* _.toLookup(stooges, 'name');
* // => { 'moe': { 'name': 'moe', 'age': 40 }, 'larry': { 'name': 'larry', 'age': 50 } }
*/
function createCallback(func, thisArg, argCount) {
if (func == null) {
return identity;
}
var type = typeof func;
if (type != 'function') {
if (type != 'object') {
return function(object) {
return object[func];
};
}
var props = keys(func);
return function(object) {
var length = props.length,
result = false;
while (length--) {
if (!(result = isEqual(object[props[length]], func[props[length]], indicatorObject))) {
break;
}
}
return result;
};
}
if (typeof thisArg == 'undefined' || (reThis && !reThis.test(fnToString.call(func)))) {
return func;
}
if (argCount === 1) {
return function(value) {
return func.call(thisArg, value);
};
}
if (argCount === 2) {
return function(a, b) {
return func.call(thisArg, a, b);
};
}
if (argCount === 4) {
return function(accumulator, value, index, collection) {
return func.call(thisArg, accumulator, value, index, collection);
};
}
return function(value, index, collection) {
return func.call(thisArg, value, index, collection);
};
}
/**
* Creates a function that will delay the execution of `func` until after
* `wait` milliseconds have elapsed since the last time it was invoked. Pass
* an `options` object to indicate that `func` should be invoked on the leading
* and/or trailing edge of the `wait` timeout. Subsequent calls to the debounced
* function will return the result of the last `func` call.
*
* Note: If `leading` and `trailing` options are `true`, `func` will be called
* on the trailing edge of the timeout only if the the debounced function is
* invoked more than once during the `wait` timeout.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to debounce.
* @param {Number} wait The number of milliseconds to delay.
* @param {Object} options The options object.
* [leading=false] A boolean to specify execution on the leading edge of the timeout.
* [maxWait] The maximum time `func` is allowed to be delayed before it's called.
* [trailing=true] A boolean to specify execution on the trailing edge of the timeout.
* @returns {Function} Returns the new debounced function.
* @example
*
* var lazyLayout = _.debounce(calculateLayout, 300);
* jQuery(window).on('resize', lazyLayout);
*
* jQuery('#postbox').on('click', _.debounce(sendMail, 200, {
* 'leading': true,
* 'trailing': false
* });
*/
function debounce(func, wait, options) {
var args,
result,
thisArg,
callCount = 0,
lastCalled = 0,
maxWait = false,
maxTimeoutId = null,
timeoutId = null,
trailing = true;
function clear() {
clearTimeout(maxTimeoutId);
clearTimeout(timeoutId);
callCount = 0;
maxTimeoutId = timeoutId = null;
}
function delayed() {
var isCalled = trailing && (!leading || callCount > 1);
clear();
if (isCalled) {
if (maxWait !== false) {
lastCalled = new Date;
}
result = func.apply(thisArg, args);
}
}
function maxDelayed() {
clear();
if (trailing || (maxWait !== wait)) {
lastCalled = new Date;
result = func.apply(thisArg, args);
}
}
wait = nativeMax(0, wait || 0);
if (options === true) {
var leading = true;
trailing = false;
} else if (isObject(options)) {
leading = options.leading;
maxWait = 'maxWait' in options && nativeMax(wait, options.maxWait || 0);
trailing = 'trailing' in options ? options.trailing : trailing;
}
return function() {
args = arguments;
thisArg = this;
callCount++;
// avoid issues with Titanium and `undefined` timeout ids
// https://github.com/appcelerator/titanium_mobile/blob/3_1_0_GA/android/titanium/src/java/ti/modules/titanium/TitaniumModule.java#L185-L192
clearTimeout(timeoutId);
if (maxWait === false) {
if (leading && callCount < 2) {
result = func.apply(thisArg, args);
}
} else {
var now = new Date;
if (!maxTimeoutId && !leading) {
lastCalled = now;
}
var remaining = maxWait - (now - lastCalled);
if (remaining <= 0) {
clearTimeout(maxTimeoutId);
maxTimeoutId = null;
lastCalled = now;
result = func.apply(thisArg, args);
}
else if (!maxTimeoutId) {
maxTimeoutId = setTimeout(maxDelayed, remaining);
}
}
if (wait !== maxWait) {
timeoutId = setTimeout(delayed, wait);
}
return result;
};
}
/**
* Defers executing the `func` function until the current call stack has cleared.
* Additional arguments will be passed to `func` when it is invoked.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to defer.
* @param {Mixed} [arg1, arg2, ...] Arguments to invoke the function with.
* @returns {Number} Returns the timer id.
* @example
*
* _.defer(function() { alert('deferred'); });
* // returns from the function before `alert` is called
*/
function defer(func) {
var args = nativeSlice.call(arguments, 1);
return setTimeout(function() { func.apply(undefined, args); }, 1);
}
// use `setImmediate` if it's available in Node.js
if (isV8 && freeModule && typeof setImmediate == 'function') {
defer = bind(setImmediate, context);
}
/**
* Executes the `func` function after `wait` milliseconds. Additional arguments
* will be passed to `func` when it is invoked.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to delay.
* @param {Number} wait The number of milliseconds to delay execution.
* @param {Mixed} [arg1, arg2, ...] Arguments to invoke the function with.
* @returns {Number} Returns the timer id.
* @example
*
* var log = _.bind(console.log, console);
* _.delay(log, 1000, 'logged later');
* // => 'logged later' (Appears after one second.)
*/
function delay(func, wait) {
var args = nativeSlice.call(arguments, 2);
return setTimeout(function() { func.apply(undefined, args); }, wait);
}
/**
* Creates a function that memoizes the result of `func`. If `resolver` is
* passed, it will be used to determine the cache key for storing the result
* based on the arguments passed to the memoized function. By default, the first
* argument passed to the memoized function is used as the cache key. The `func`
* is executed with the `this` binding of the memoized function. The result
* cache is exposed as the `cache` property on the memoized function.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to have its output memoized.
* @param {Function} [resolver] A function used to resolve the cache key.
* @returns {Function} Returns the new memoizing function.
* @example
*
* var fibonacci = _.memoize(function(n) {
* return n < 2 ? n : fibonacci(n - 1) + fibonacci(n - 2);
* });
*/
function memoize(func, resolver) {
function memoized() {
var cache = memoized.cache,
key = keyPrefix + (resolver ? resolver.apply(this, arguments) : arguments[0]);
return hasOwnProperty.call(cache, key)
? cache[key]
: (cache[key] = func.apply(this, arguments));
}
memoized.cache = {};
return memoized;
}
/**
* Creates a function that is restricted to execute `func` once. Repeat calls to
* the function will return the value of the first call. The `func` is executed
* with the `this` binding of the created function.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to restrict.
* @returns {Function} Returns the new restricted function.
* @example
*
* var initialize = _.once(createApplication);
* initialize();
* initialize();
* // `initialize` executes `createApplication` once
*/
function once(func) {
var ran,
result;
return function() {
if (ran) {
return result;
}
ran = true;
result = func.apply(this, arguments);
// clear the `func` variable so the function may be garbage collected
func = null;
return result;
};
}
/**
* Creates a function that, when called, invokes `func` with any additional
* `partial` arguments prepended to those passed to the new function. This
* method is similar to `_.bind`, except it does **not** alter the `this` binding.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to partially apply arguments to.
* @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied.
* @returns {Function} Returns the new partially applied function.
* @example
*
* var greet = function(greeting, name) { return greeting + ' ' + name; };
* var hi = _.partial(greet, 'hi');
* hi('moe');
* // => 'hi moe'
*/
function partial(func) {
return createBound(func, nativeSlice.call(arguments, 1));
}
/**
* This method is similar to `_.partial`, except that `partial` arguments are
* appended to those passed to the new function.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to partially apply arguments to.
* @param {Mixed} [arg1, arg2, ...] Arguments to be partially applied.
* @returns {Function} Returns the new partially applied function.
* @example
*
* var defaultsDeep = _.partialRight(_.merge, _.defaults);
*
* var options = {
* 'variable': 'data',
* 'imports': { 'jq': $ }
* };
*
* defaultsDeep(options, _.templateSettings);
*
* options.variable
* // => 'data'
*
* options.imports
* // => { '_': _, 'jq': $ }
*/
function partialRight(func) {
return createBound(func, nativeSlice.call(arguments, 1), null, indicatorObject);
}
/**
* Creates a function that, when executed, will only call the `func` function
* at most once per every `wait` milliseconds. Pass an `options` object to
* indicate that `func` should be invoked on the leading and/or trailing edge
* of the `wait` timeout. Subsequent calls to the throttled function will
* return the result of the last `func` call.
*
* Note: If `leading` and `trailing` options are `true`, `func` will be called
* on the trailing edge of the timeout only if the the throttled function is
* invoked more than once during the `wait` timeout.
*
* @static
* @memberOf _
* @category Functions
* @param {Function} func The function to throttle.
* @param {Number} wait The number of milliseconds to throttle executions to.
* @param {Object} options The options object.
* [leading=true] A boolean to specify execution on the leading edge of the timeout.
* [trailing=true] A boolean to specify execution on the trailing edge of the timeout.
* @returns {Function} Returns the new throttled function.
* @example
*
* var throttled = _.throttle(updatePosition, 100);
* jQuery(window).on('scroll', throttled);
*
* jQuery('.interactive').on('click', _.throttle(renewToken, 300000, {
* 'trailing': false
* }));
*/
function throttle(func, wait, options) {
var leading = true,
trailing = true;
if (options === false) {
leading = false;
} else if (isObject(options)) {
leading = 'leading' in options ? options.leading : leading;
trailing = 'trailing' in options ? options.trailing : trailing;
}
options = getObject();
options.leading = leading;
options.maxWait = wait;
options.trailing = trailing;
var result = debounce(func, wait, options);
releaseObject(options);
return result;
}
/**
* Creates a function that passes `value` to the `wrapper` function as its
* first argument. Additional arguments passed to the function are appended
* to those passed to the `wrapper` function. The `wrapper` is executed with
* the `this` binding of the created function.
*
* @static
* @memberOf _
* @category Functions
* @param {Mixed} value The value to wrap.
* @param {Function} wrapper The wrapper function.
* @returns {Function} Returns the new function.
* @example
*
* var hello = function(name) { return 'hello ' + name; };
* hello = _.wrap(hello, function(func) {
* return 'before, ' + func('moe') + ', after';
* });
* hello();
* // => 'before, hello moe, after'
*/
function wrap(value, wrapper) {
return function() {
var args = [value];
push.apply(args, arguments);
return wrapper.apply(this, args);
};
}
/*--------------------------------------------------------------------------*/
/**
* Converts the characters `&`, `<`, `>`, `"`, and `'` in `string` to their
* corresponding HTML entities.
*
* @static
* @memberOf _
* @category Utilities
* @param {String} string The string to escape.
* @returns {String} Returns the escaped string.
* @example
*
* _.escape('Moe, Larry & Curly');
* // => 'Moe, Larry &amp; Curly'
*/
function escape(string) {
return string == null ? '' : String(string).replace(reUnescapedHtml, escapeHtmlChar);
}
/**
* This method returns the first argument passed to it.
*
* @static
* @memberOf _
* @category Utilities
* @param {Mixed} value Any value.
* @returns {Mixed} Returns `value`.
* @example
*
* var moe = { 'name': 'moe' };
* moe === _.identity(moe);
* // => true
*/
function identity(value) {
return value;
}
/**
* Adds functions properties of `object` to the `lodash` function and chainable
* wrapper.
*
* @static
* @memberOf _
* @category Utilities
* @param {Object} object The object of function properties to add to `lodash`.
* @example
*
* _.mixin({
* 'capitalize': function(string) {
* return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
* }
* });
*
* _.capitalize('moe');
* // => 'Moe'
*
* _('moe').capitalize();
* // => 'Moe'
*/
function mixin(object) {
forEach(functions(object), function(methodName) {
var func = lodash[methodName] = object[methodName];
lodash.prototype[methodName] = function() {
var value = this.__wrapped__,
args = [value];
push.apply(args, arguments);
var result = func.apply(lodash, args);
return (value && typeof value == 'object' && value === result)
? this
: new lodashWrapper(result);
};
});
}
/**
* Reverts the '_' variable to its previous value and returns a reference to
* the `lodash` function.
*
* @static
* @memberOf _
* @category Utilities
* @returns {Function} Returns the `lodash` function.
* @example
*
* var lodash = _.noConflict();
*/
function noConflict() {
context._ = oldDash;
return this;
}
/**
* Converts the given `value` into an integer of the specified `radix`.
* If `radix` is `undefined` or `0`, a `radix` of `10` is used unless the
* `value` is a hexadecimal, in which case a `radix` of `16` is used.
*
* Note: This method avoids differences in native ES3 and ES5 `parseInt`
* implementations. See http://es5.github.com/#E.
*
* @static
* @memberOf _
* @category Utilities
* @param {String} value The value to parse.
* @param {Number} [radix] The radix used to interpret the value to parse.
* @returns {Number} Returns the new integer value.
* @example
*
* _.parseInt('08');
* // => 8
*/
var parseInt = nativeParseInt(whitespace + '08') == 8 ? nativeParseInt : function(value, radix) {
// Firefox and Opera still follow the ES3 specified implementation of `parseInt`
return nativeParseInt(isString(value) ? value.replace(reLeadingSpacesAndZeros, '') : value, radix || 0);
};
/**
* Produces a random number between `min` and `max` (inclusive). If only one
* argument is passed, a number between `0` and the given number will be returned.
*
* @static
* @memberOf _
* @category Utilities
* @param {Number} [min=0] The minimum possible value.
* @param {Number} [max=1] The maximum possible value.
* @returns {Number} Returns a random number.
* @example
*
* _.random(0, 5);
* // => a number between 0 and 5
*
* _.random(5);
* // => also a number between 0 and 5
*/
function random(min, max) {
if (min == null && max == null) {
max = 1;
}
min = +min || 0;
if (max == null) {
max = min;
min = 0;
} else {
max = +max || 0;
}
var rand = nativeRandom();
return (min % 1 || max % 1)
? min + nativeMin(rand * (max - min + parseFloat('1e-' + ((rand +'').length - 1))), max)
: min + floor(rand * (max - min + 1));
}
/**
* Resolves the value of `property` on `object`. If `property` is a function,
* it will be invoked with the `this` binding of `object` and its result returned,
* else the property value is returned. If `object` is falsey, then `undefined`
* is returned.
*
* @static
* @memberOf _
* @category Utilities
* @param {Object} object The object to inspect.
* @param {String} property The property to get the value of.
* @returns {Mixed} Returns the resolved value.
* @example
*
* var object = {
* 'cheese': 'crumpets',
* 'stuff': function() {
* return 'nonsense';
* }
* };
*
* _.result(object, 'cheese');
* // => 'crumpets'
*
* _.result(object, 'stuff');
* // => 'nonsense'
*/
function result(object, property) {
var value = object ? object[property] : undefined;
return isFunction(value) ? object[property]() : value;
}
/**
* A micro-templating method that handles arbitrary delimiters, preserves
* whitespace, and correctly escapes quotes within interpolated code.
*
* Note: In the development build, `_.template` utilizes sourceURLs for easier
* debugging. See http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
*
* For more information on precompiling templates see:
* http://lodash.com/#custom-builds
*
* For more information on Chrome extension sandboxes see:
* http://developer.chrome.com/stable/extensions/sandboxingEval.html
*
* @static
* @memberOf _
* @category Utilities
* @param {String} text The template text.
* @param {Object} data The data object used to populate the text.
* @param {Object} options The options object.
* escape - The "escape" delimiter regexp.
* evaluate - The "evaluate" delimiter regexp.
* interpolate - The "interpolate" delimiter regexp.
* sourceURL - The sourceURL of the template's compiled source.
* variable - The data object variable name.
* @returns {Function|String} Returns a compiled function when no `data` object
* is given, else it returns the interpolated text.
* @example
*
* // using a compiled template
* var compiled = _.template('hello <%= name %>');
* compiled({ 'name': 'moe' });
* // => 'hello moe'
*
* var list = '<% _.forEach(people, function(name) { %><li><%= name %></li><% }); %>';
* _.template(list, { 'people': ['moe', 'larry'] });
* // => '<li>moe</li><li>larry</li>'
*
* // using the "escape" delimiter to escape HTML in data property values
* _.template('<b><%- value %></b>', { 'value': '<script>' });
* // => '<b>&lt;script&gt;</b>'
*
* // using the ES6 delimiter as an alternative to the default "interpolate" delimiter
* _.template('hello ${ name }', { 'name': 'curly' });
* // => 'hello curly'
*
* // using the internal `print` function in "evaluate" delimiters
* _.template('<% print("hello " + epithet); %>!', { 'epithet': 'stooge' });
* // => 'hello stooge!'
*
* // using custom template delimiters
* _.templateSettings = {
* 'interpolate': /{{([\s\S]+?)}}/g
* };
*
* _.template('hello {{ name }}!', { 'name': 'mustache' });
* // => 'hello mustache!'
*
* // using the `sourceURL` option to specify a custom sourceURL for the template
* var compiled = _.template('hello <%= name %>', null, { 'sourceURL': '/basic/greeting.jst' });
* compiled(data);
* // => find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector
*
* // using the `variable` option to ensure a with-statement isn't used in the compiled template
* var compiled = _.template('hi <%= data.name %>!', null, { 'variable': 'data' });
* compiled.source;
* // => function(data) {
* var __t, __p = '', __e = _.escape;
* __p += 'hi ' + ((__t = ( data.name )) == null ? '' : __t) + '!';
* return __p;
* }
*
* // using the `source` property to inline compiled templates for meaningful
* // line numbers in error messages and a stack trace
* fs.writeFileSync(path.join(cwd, 'jst.js'), '\
* var JST = {\
* "main": ' + _.template(mainText).source + '\
* };\
* ');
*/
function template(text, data, options) {
// based on John Resig's `tmpl` implementation
// http://ejohn.org/blog/javascript-micro-templating/
// and Laura Doktorova's doT.js
// https://github.com/olado/doT
var settings = lodash.templateSettings;
text || (text = '');
// avoid missing dependencies when `iteratorTemplate` is not defined
options = defaults({}, options, settings);
var imports = defaults({}, options.imports, settings.imports),
importsKeys = keys(imports),
importsValues = values(imports);
var isEvaluating,
index = 0,
interpolate = options.interpolate || reNoMatch,
source = "__p += '";
// compile the regexp to match each delimiter
var reDelimiters = RegExp(
(options.escape || reNoMatch).source + '|' +
interpolate.source + '|' +
(interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
(options.evaluate || reNoMatch).source + '|$'
, 'g');
text.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
interpolateValue || (interpolateValue = esTemplateValue);
// escape characters that cannot be included in string literals
source += text.slice(index, offset).replace(reUnescapedString, escapeStringChar);
// replace delimiters with snippets
if (escapeValue) {
source += "' +\n__e(" + escapeValue + ") +\n'";
}
if (evaluateValue) {
isEvaluating = true;
source += "';\n" + evaluateValue + ";\n__p += '";
}
if (interpolateValue) {
source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
}
index = offset + match.length;
// the JS engine embedded in Adobe products requires returning the `match`
// string in order to produce the correct `offset` value
return match;
});
source += "';\n";
// if `variable` is not specified, wrap a with-statement around the generated
// code to add the data object to the top of the scope chain
var variable = options.variable,
hasVariable = variable;
if (!hasVariable) {
variable = 'obj';
source = 'with (' + variable + ') {\n' + source + '\n}\n';
}
// cleanup code by stripping empty strings
source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
.replace(reEmptyStringMiddle, '$1')
.replace(reEmptyStringTrailing, '$1;');
// frame code as the function body
source = 'function(' + variable + ') {\n' +
(hasVariable ? '' : variable + ' || (' + variable + ' = {});\n') +
"var __t, __p = '', __e = _.escape" +
(isEvaluating
? ', __j = Array.prototype.join;\n' +
"function print() { __p += __j.call(arguments, '') }\n"
: ';\n'
) +
source +
'return __p\n}';
// Use a sourceURL for easier debugging and wrap in a multi-line comment to
// avoid issues with Narwhal, IE conditional compilation, and the JS engine
// embedded in Adobe products.
// http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl
var sourceURL = '\n/*\n//@ sourceURL=' + (options.sourceURL || '/lodash/template/source[' + (templateCounter++) + ']') + '\n*/';
try {
var result = Function(importsKeys, 'return ' + source + sourceURL).apply(undefined, importsValues);
} catch(e) {
e.source = source;
throw e;
}
if (data) {
return result(data);
}
// provide the compiled function's source via its `toString` method, in
// supported environments, or the `source` property as a convenience for
// inlining compiled templates during the build process
result.source = source;
return result;
}
/**
* Executes the `callback` function `n` times, returning an array of the results
* of each `callback` execution. The `callback` is bound to `thisArg` and invoked
* with one argument; (index).
*
* @static
* @memberOf _
* @category Utilities
* @param {Number} n The number of times to execute the callback.
* @param {Function} callback The function called per iteration.
* @param {Mixed} [thisArg] The `this` binding of `callback`.
* @returns {Array} Returns a new array of the results of each `callback` execution.
* @example
*
* var diceRolls = _.times(3, _.partial(_.random, 1, 6));
* // => [3, 6, 4]
*
* _.times(3, function(n) { mage.castSpell(n); });
* // => calls `mage.castSpell(n)` three times, passing `n` of `0`, `1`, and `2` respectively
*
* _.times(3, function(n) { this.cast(n); }, mage);
* // => also calls `mage.castSpell(n)` three times
*/
function times(n, callback, thisArg) {
n = (n = +n) > -1 ? n : 0;
var index = -1,
result = Array(n);
callback = lodash.createCallback(callback, thisArg, 1);
while (++index < n) {
result[index] = callback(index);
}
return result;
}
/**
* The inverse of `_.escape`, this method converts the HTML entities
* `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to their
* corresponding characters.
*
* @static
* @memberOf _
* @category Utilities
* @param {String} string The string to unescape.
* @returns {String} Returns the unescaped string.
* @example
*
* _.unescape('Moe, Larry &amp; Curly');
* // => 'Moe, Larry & Curly'
*/
function unescape(string) {
return string == null ? '' : String(string).replace(reEscapedHtml, unescapeHtmlChar);
}
/**
* Generates a unique ID. If `prefix` is passed, the ID will be appended to it.
*
* @static
* @memberOf _
* @category Utilities
* @param {String} [prefix] The value to prefix the ID with.
* @returns {String} Returns the unique ID.
* @example
*
* _.uniqueId('contact_');
* // => 'contact_104'
*
* _.uniqueId();
* // => '105'
*/
function uniqueId(prefix) {
var id = ++idCounter;
return String(prefix == null ? '' : prefix) + id;
}
/*--------------------------------------------------------------------------*/
/**
* Invokes `interceptor` with the `value` as the first argument, and then
* returns `value`. The purpose of this method is to "tap into" a method chain,
* in order to perform operations on intermediate results within the chain.
*
* @static
* @memberOf _
* @category Chaining
* @param {Mixed} value The value to pass to `interceptor`.
* @param {Function} interceptor The function to invoke.
* @returns {Mixed} Returns `value`.
* @example
*
* _([1, 2, 3, 4])
* .filter(function(num) { return num % 2 == 0; })
* .tap(alert)
* .map(function(num) { return num * num; })
* .value();
* // => // [2, 4] (alerted)
* // => [4, 16]
*/
function tap(value, interceptor) {
interceptor(value);
return value;
}
/**
* Produces the `toString` result of the wrapped value.
*
* @name toString
* @memberOf _
* @category Chaining
* @returns {String} Returns the string result.
* @example
*
* _([1, 2, 3]).toString();
* // => '1,2,3'
*/
function wrapperToString() {
return String(this.__wrapped__);
}
/**
* Extracts the wrapped value.
*
* @name valueOf
* @memberOf _
* @alias value
* @category Chaining
* @returns {Mixed} Returns the wrapped value.
* @example
*
* _([1, 2, 3]).valueOf();
* // => [1, 2, 3]
*/
function wrapperValueOf() {
return this.__wrapped__;
}
/*--------------------------------------------------------------------------*/
// add functions that return wrapped values when chaining
lodash.after = after;
lodash.assign = assign;
lodash.at = at;
lodash.bind = bind;
lodash.bindAll = bindAll;
lodash.bindKey = bindKey;
lodash.compact = compact;
lodash.compose = compose;
lodash.countBy = countBy;
lodash.createCallback = createCallback;
lodash.debounce = debounce;
lodash.defaults = defaults;
lodash.defer = defer;
lodash.delay = delay;
lodash.difference = difference;
lodash.filter = filter;
lodash.flatten = flatten;
lodash.forEach = forEach;
lodash.forIn = forIn;
lodash.forOwn = forOwn;
lodash.functions = functions;
lodash.groupBy = groupBy;
lodash.initial = initial;
lodash.intersection = intersection;
lodash.invert = invert;
lodash.invoke = invoke;
lodash.keys = keys;
lodash.map = map;
lodash.max = max;
lodash.memoize = memoize;
lodash.merge = merge;
lodash.min = min;
lodash.omit = omit;
lodash.once = once;
lodash.pairs = pairs;
lodash.partial = partial;
lodash.partialRight = partialRight;
lodash.pick = pick;
lodash.pluck = pluck;
lodash.range = range;
lodash.reject = reject;
lodash.rest = rest;
lodash.shuffle = shuffle;
lodash.sortBy = sortBy;
lodash.tap = tap;
lodash.throttle = throttle;
lodash.times = times;
lodash.toArray = toArray;
lodash.transform = transform;
lodash.union = union;
lodash.uniq = uniq;
lodash.unzip = unzip;
lodash.values = values;
lodash.where = where;
lodash.without = without;
lodash.wrap = wrap;
lodash.zip = zip;
lodash.zipObject = zipObject;
// add aliases
lodash.collect = map;
lodash.drop = rest;
lodash.each = forEach;
lodash.extend = assign;
lodash.methods = functions;
lodash.object = zipObject;
lodash.select = filter;
lodash.tail = rest;
lodash.unique = uniq;
// add functions to `lodash.prototype`
mixin(lodash);
// add Underscore compat
lodash.chain = lodash;
lodash.prototype.chain = function() { return this; };
/*--------------------------------------------------------------------------*/
// add functions that return unwrapped values when chaining
lodash.clone = clone;
lodash.cloneDeep = cloneDeep;
lodash.contains = contains;
lodash.escape = escape;
lodash.every = every;
lodash.find = find;
lodash.findIndex = findIndex;
lodash.findKey = findKey;
lodash.has = has;
lodash.identity = identity;
lodash.indexOf = indexOf;
lodash.isArguments = isArguments;
lodash.isArray = isArray;
lodash.isBoolean = isBoolean;
lodash.isDate = isDate;
lodash.isElement = isElement;
lodash.isEmpty = isEmpty;
lodash.isEqual = isEqual;
lodash.isFinite = isFinite;
lodash.isFunction = isFunction;
lodash.isNaN = isNaN;
lodash.isNull = isNull;
lodash.isNumber = isNumber;
lodash.isObject = isObject;
lodash.isPlainObject = isPlainObject;
lodash.isRegExp = isRegExp;
lodash.isString = isString;
lodash.isUndefined = isUndefined;
lodash.lastIndexOf = lastIndexOf;
lodash.mixin = mixin;
lodash.noConflict = noConflict;
lodash.parseInt = parseInt;
lodash.random = random;
lodash.reduce = reduce;
lodash.reduceRight = reduceRight;
lodash.result = result;
lodash.runInContext = runInContext;
lodash.size = size;
lodash.some = some;
lodash.sortedIndex = sortedIndex;
lodash.template = template;
lodash.unescape = unescape;
lodash.uniqueId = uniqueId;
// add aliases
lodash.all = every;
lodash.any = some;
lodash.detect = find;
lodash.findWhere = find;
lodash.foldl = reduce;
lodash.foldr = reduceRight;
lodash.include = contains;
lodash.inject = reduce;
forOwn(lodash, function(func, methodName) {
if (!lodash.prototype[methodName]) {
lodash.prototype[methodName] = function() {
var args = [this.__wrapped__];
push.apply(args, arguments);
return func.apply(lodash, args);
};
}
});
/*--------------------------------------------------------------------------*/
// add functions capable of returning wrapped and unwrapped values when chaining
lodash.first = first;
lodash.last = last;
// add aliases
lodash.take = first;
lodash.head = first;
forOwn(lodash, function(func, methodName) {
if (!lodash.prototype[methodName]) {
lodash.prototype[methodName]= function(callback, thisArg) {
var result = func(this.__wrapped__, callback, thisArg);
return callback == null || (thisArg && typeof callback != 'function')
? result
: new lodashWrapper(result);
};
}
});
/*--------------------------------------------------------------------------*/
/**
* The semantic version number.
*
* @static
* @memberOf _
* @type String
*/
lodash.VERSION = '1.3.1';
// add "Chaining" functions to the wrapper
lodash.prototype.toString = wrapperToString;
lodash.prototype.value = wrapperValueOf;
lodash.prototype.valueOf = wrapperValueOf;
// add `Array` functions that return unwrapped values
basicEach(['join', 'pop', 'shift'], function(methodName) {
var func = arrayRef[methodName];
lodash.prototype[methodName] = function() {
return func.apply(this.__wrapped__, arguments);
};
});
// add `Array` functions that return the wrapped value
basicEach(['push', 'reverse', 'sort', 'unshift'], function(methodName) {
var func = arrayRef[methodName];
lodash.prototype[methodName] = function() {
func.apply(this.__wrapped__, arguments);
return this;
};
});
// add `Array` functions that return new wrapped values
basicEach(['concat', 'slice', 'splice'], function(methodName) {
var func = arrayRef[methodName];
lodash.prototype[methodName] = function() {
return new lodashWrapper(func.apply(this.__wrapped__, arguments));
};
});
// avoid array-like object bugs with `Array#shift` and `Array#splice`
// in Firefox < 10 and IE < 9
if (!support.spliceObjects) {
basicEach(['pop', 'shift', 'splice'], function(methodName) {
var func = arrayRef[methodName],
isSplice = methodName == 'splice';
lodash.prototype[methodName] = function() {
var value = this.__wrapped__,
result = func.apply(value, arguments);
if (value.length === 0) {
delete value[0];
}
return isSplice ? new lodashWrapper(result) : result;
};
});
}
return lodash;
}
/*--------------------------------------------------------------------------*/
// expose Lo-Dash
var _ = runInContext();
// some AMD build optimizers, like r.js, check for specific condition patterns like the following:
if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
// Expose Lo-Dash to the global object even when an AMD loader is present in
// case Lo-Dash was injected by a third-party script and not intended to be
// loaded as a module. The global assignment can be reverted in the Lo-Dash
// module via its `noConflict()` method.
window._ = _;
// define as an anonymous module so, through path mapping, it can be
// referenced as the "underscore" module
define(function() {
return _;
});
}
// check for `exports` after `define` in case a build optimizer adds an `exports` object
else if (freeExports && !freeExports.nodeType) {
// in Node.js or RingoJS v0.8.0+
if (freeModule) {
(freeModule.exports = _)._ = _;
}
// in Narwhal or RingoJS v0.7.0-
else {
freeExports._ = _;
}
}
else {
// in a browser or Rhino
window._ = _;
}
}(this));
Raw
reverseRelationTest_js_lib_require.js
/** vim: et:ts=4:sw=4:sts=4
* @license RequireJS 2.1.5 Copyright (c) 2010-2012, The Dojo Foundation All Rights Reserved.
* Available via the MIT or new BSD license.
* see: http://github.com/jrburke/requirejs for details
*/
//Not using strict: uneven strict support in browsers, #392, and causes
//problems with requirejs.exec()/transpiler plugins that may not be strict.
/*jslint regexp: true, nomen: true, sloppy: true */
/*global window, navigator, document, importScripts, setTimeout, opera */
var requirejs, require, define;
(function (global) {
var req, s, head, baseElement, dataMain, src,
interactiveScript, currentlyAddingScript, mainScript, subPath,
version = '2.1.5',
commentRegExp = /(\/\*([\s\S]*?)\*\/|([^:]|^)\/\/(.*)$)/mg,
cjsRequireRegExp = /[^.]\s*require\s*\(\s*["']([^'"\s]+)["']\s*\)/g,
jsSuffixRegExp = /\.js$/,
currDirRegExp = /^\.\//,
op = Object.prototype,
ostring = op.toString,
hasOwn = op.hasOwnProperty,
ap = Array.prototype,
apsp = ap.splice,
isBrowser = !!(typeof window !== 'undefined' && navigator && document),
isWebWorker = !isBrowser && typeof importScripts !== 'undefined',
//PS3 indicates loaded and complete, but need to wait for complete
//specifically. Sequence is 'loading', 'loaded', execution,
// then 'complete'. The UA check is unfortunate, but not sure how
//to feature test w/o causing perf issues.
readyRegExp = isBrowser && navigator.platform === 'PLAYSTATION 3' ?
/^complete$/ : /^(complete|loaded)$/,
defContextName = '_',
//Oh the tragedy, detecting opera. See the usage of isOpera for reason.
isOpera = typeof opera !== 'undefined' && opera.toString() === '[object Opera]',
contexts = {},
cfg = {},
globalDefQueue = [],
useInteractive = false;
function isFunction(it) {
return ostring.call(it) === '[object Function]';
}
function isArray(it) {
return ostring.call(it) === '[object Array]';
}
/**
* Helper function for iterating over an array. If the func returns
* a true value, it will break out of the loop.
*/
function each(ary, func) {
if (ary) {
var i;
for (i = 0; i < ary.length; i += 1) {
if (ary[i] && func(ary[i], i, ary)) {
break;
}
}
}
}
/**
* Helper function for iterating over an array backwards. If the func
* returns a true value, it will break out of the loop.
*/
function eachReverse(ary, func) {
if (ary) {
var i;
for (i = ary.length - 1; i > -1; i -= 1) {
if (ary[i] && func(ary[i], i, ary)) {
break;
}
}
}
}
function hasProp(obj, prop) {
return hasOwn.call(obj, prop);
}
function getOwn(obj, prop) {
return hasProp(obj, prop) && obj[prop];
}
/**
* Cycles over properties in an object and calls a function for each
* property value. If the function returns a truthy value, then the
* iteration is stopped.
*/
function eachProp(obj, func) {
var prop;
for (prop in obj) {
if (hasProp(obj, prop)) {
if (func(obj[prop], prop)) {
break;
}
}
}
}
/**
* Simple function to mix in properties from source into target,
* but only if target does not already have a property of the same name.
*/
function mixin(target, source, force, deepStringMixin) {
if (source) {
eachProp(source, function (value, prop) {
if (force || !hasProp(target, prop)) {
if (deepStringMixin && typeof value !== 'string') {
if (!target[prop]) {
target[prop] = {};
}
mixin(target[prop], value, force, deepStringMixin);
} else {
target[prop] = value;
}
}
});
}
return target;
}
//Similar to Function.prototype.bind, but the 'this' object is specified
//first, since it is easier to read/figure out what 'this' will be.
function bind(obj, fn) {
return function () {
return fn.apply(obj, arguments);
};
}
function scripts() {
return document.getElementsByTagName('script');
}
//Allow getting a global that expressed in
//dot notation, like 'a.b.c'.
function getGlobal(value) {
if (!value) {
return value;
}
var g = global;
each(value.split('.'), function (part) {
g = g[part];
});
return g;
}
/**
* Constructs an error with a pointer to an URL with more information.
* @param {String} id the error ID that maps to an ID on a web page.
* @param {String} message human readable error.
* @param {Error} [err] the original error, if there is one.
*
* @returns {Error}
*/
function makeError(id, msg, err, requireModules) {
var e = new Error(msg + '\nhttp://requirejs.org/docs/errors.html#' + id);
e.requireType = id;
e.requireModules = requireModules;
if (err) {
e.originalError = err;
}
return e;
}
if (typeof define !== 'undefined') {
//If a define is already in play via another AMD loader,
//do not overwrite.
return;
}
if (typeof requirejs !== 'undefined') {
if (isFunction(requirejs)) {
//Do not overwrite and existing requirejs instance.
return;
}
cfg = requirejs;
requirejs = undefined;
}
//Allow for a require config object
if (typeof require !== 'undefined' && !isFunction(require)) {
//assume it is a config object.
cfg = require;
require = undefined;
}
function newContext(contextName) {
var inCheckLoaded, Module, context, handlers,
checkLoadedTimeoutId,
config = {
//Defaults. Do not set a default for map
//config to speed up normalize(), which
//will run faster if there is no default.
waitSeconds: 7,
baseUrl: './',
paths: {},
pkgs: {},
shim: {},
config: {}
},
registry = {},
//registry of just enabled modules, to speed
//cycle breaking code when lots of modules
//are registered, but not activated.
enabledRegistry = {},
undefEvents = {},
defQueue = [],
defined = {},
urlFetched = {},
requireCounter = 1,
unnormalizedCounter = 1;
/**
* Trims the . and .. from an array of path segments.
* It will keep a leading path segment if a .. will become
* the first path segment, to help with module name lookups,
* which act like paths, but can be remapped. But the end result,
* all paths that use this function should look normalized.
* NOTE: this method MODIFIES the input array.
* @param {Array} ary the array of path segments.
*/
function trimDots(ary) {
var i, part;
for (i = 0; ary[i]; i += 1) {
part = ary[i];
if (part === '.') {
ary.splice(i, 1);
i -= 1;
} else if (part === '..') {
if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
//End of the line. Keep at least one non-dot
//path segment at the front so it can be mapped
//correctly to disk. Otherwise, there is likely
//no path mapping for a path starting with '..'.
//This can still fail, but catches the most reasonable
//uses of ..
break;
} else if (i > 0) {
ary.splice(i - 1, 2);
i -= 2;
}
}
}
}
/**
* Given a relative module name, like ./something, normalize it to
* a real name that can be mapped to a path.
* @param {String} name the relative name
* @param {String} baseName a real name that the name arg is relative
* to.
* @param {Boolean} applyMap apply the map config to the value. Should
* only be done if this normalization is for a dependency ID.
* @returns {String} normalized name
*/
function normalize(name, baseName, applyMap) {
var pkgName, pkgConfig, mapValue, nameParts, i, j, nameSegment,
foundMap, foundI, foundStarMap, starI,
baseParts = baseName && baseName.split('/'),
normalizedBaseParts = baseParts,
map = config.map,
starMap = map && map['*'];
//Adjust any relative paths.
if (name && name.charAt(0) === '.') {
//If have a base name, try to normalize against it,
//otherwise, assume it is a top-level require that will
//be relative to baseUrl in the end.
if (baseName) {
if (getOwn(config.pkgs, baseName)) {
//If the baseName is a package name, then just treat it as one
//name to concat the name with.
normalizedBaseParts = baseParts = [baseName];
} else {
//Convert baseName to array, and lop off the last part,
//so that . matches that 'directory' and not name of the baseName's
//module. For instance, baseName of 'one/two/three', maps to
//'one/two/three.js', but we want the directory, 'one/two' for
//this normalization.
normalizedBaseParts = baseParts.slice(0, baseParts.length - 1);
}
name = normalizedBaseParts.concat(name.split('/'));
trimDots(name);
//Some use of packages may use a . path to reference the
//'main' module name, so normalize for that.
pkgConfig = getOwn(config.pkgs, (pkgName = name[0]));
name = name.join('/');
if (pkgConfig && name === pkgName + '/' + pkgConfig.main) {
name = pkgName;
}
} else if (name.indexOf('./') === 0) {
// No baseName, so this is ID is resolved relative
// to baseUrl, pull off the leading dot.
name = name.substring(2);
}
}
//Apply map config if available.
if (applyMap && map && (baseParts || starMap)) {
nameParts = name.split('/');
for (i = nameParts.length; i > 0; i -= 1) {
nameSegment = nameParts.slice(0, i).join('/');
if (baseParts) {
//Find the longest baseName segment match in the config.
//So, do joins on the biggest to smallest lengths of baseParts.
for (j = baseParts.length; j > 0; j -= 1) {
mapValue = getOwn(map, baseParts.slice(0, j).join('/'));
//baseName segment has config, find if it has one for
//this name.
if (mapValue) {
mapValue = getOwn(mapValue, nameSegment);
if (mapValue) {
//Match, update name to the new value.
foundMap = mapValue;
foundI = i;
break;
}
}
}
}
if (foundMap) {
break;
}
//Check for a star map match, but just hold on to it,
//if there is a shorter segment match later in a matching
//config, then favor over this star map.
if (!foundStarMap && starMap && getOwn(starMap, nameSegment)) {
foundStarMap = getOwn(starMap, nameSegment);
starI = i;
}
}
if (!foundMap && foundStarMap) {
foundMap = foundStarMap;
foundI = starI;
}
if (foundMap) {
nameParts.splice(0, foundI, foundMap);
name = nameParts.join('/');
}
}
return name;
}
function removeScript(name) {
if (isBrowser) {
each(scripts(), function (scriptNode) {
if (scriptNode.getAttribute('data-requiremodule') === name &&
scriptNode.getAttribute('data-requirecontext') === context.contextName) {
scriptNode.parentNode.removeChild(scriptNode);
return true;
}
});
}
}
function hasPathFallback(id) {
var pathConfig = getOwn(config.paths, id);
if (pathConfig && isArray(pathConfig) && pathConfig.length > 1) {
removeScript(id);
//Pop off the first array value, since it failed, and
//retry
pathConfig.shift();
context.require.undef(id);
context.require([id]);
return true;
}
}
//Turns a plugin!resource to [plugin, resource]
//with the plugin being undefined if the name
//did not have a plugin prefix.
function splitPrefix(name) {
var prefix,
index = name ? name.indexOf('!') : -1;
if (index > -1) {
prefix = name.substring(0, index);
name = name.substring(index + 1, name.length);
}
return [prefix, name];
}
/**
* Creates a module mapping that includes plugin prefix, module
* name, and path. If parentModuleMap is provided it will
* also normalize the name via require.normalize()
*
* @param {String} name the module name
* @param {String} [parentModuleMap] parent module map
* for the module name, used to resolve relative names.
* @param {Boolean} isNormalized: is the ID already normalized.
* This is true if this call is done for a define() module ID.
* @param {Boolean} applyMap: apply the map config to the ID.
* Should only be true if this map is for a dependency.
*
* @returns {Object}
*/
function makeModuleMap(name, parentModuleMap, isNormalized, applyMap) {
var url, pluginModule, suffix, nameParts,
prefix = null,
parentName = parentModuleMap ? parentModuleMap.name : null,
originalName = name,
isDefine = true,
normalizedName = '';
//If no name, then it means it is a require call, generate an
//internal name.
if (!name) {
isDefine = false;
name = '_@r' + (requireCounter += 1);
}
nameParts = splitPrefix(name);
prefix = nameParts[0];
name = nameParts[1];
if (prefix) {
prefix = normalize(prefix, parentName, applyMap);
pluginModule = getOwn(defined, prefix);
}
//Account for relative paths if there is a base name.
if (name) {
if (prefix) {
if (pluginModule && pluginModule.normalize) {
//Plugin is loaded, use its normalize method.
normalizedName = pluginModule.normalize(name, function (name) {
return normalize(name, parentName, applyMap);
});
} else {
normalizedName = normalize(name, parentName, applyMap);
}
} else {
//A regular module.
normalizedName = normalize(name, parentName, applyMap);
//Normalized name may be a plugin ID due to map config
//application in normalize. The map config values must
//already be normalized, so do not need to redo that part.
nameParts = splitPrefix(normalizedName);
prefix = nameParts[0];
normalizedName = nameParts[1];
isNormalized = true;
url = context.nameToUrl(normalizedName);
}
}
//If the id is a plugin id that cannot be determined if it needs
//normalization, stamp it with a unique ID so two matching relative
//ids that may conflict can be separate.
suffix = prefix && !pluginModule && !isNormalized ?
'_unnormalized' + (unnormalizedCounter += 1) :
'';
return {
prefix: prefix,
name: normalizedName,
parentMap: parentModuleMap,
unnormalized: !!suffix,
url: url,
originalName: originalName,
isDefine: isDefine,
id: (prefix ?
prefix + '!' + normalizedName :
normalizedName) + suffix
};
}
function getModule(depMap) {
var id = depMap.id,
mod = getOwn(registry, id);
if (!mod) {
mod = registry[id] = new context.Module(depMap);
}
return mod;
}
function on(depMap, name, fn) {
var id = depMap.id,
mod = getOwn(registry, id);
if (hasProp(defined, id) &&
(!mod || mod.defineEmitComplete)) {
if (name === 'defined') {
fn(defined[id]);
}
} else {
getModule(depMap).on(name, fn);
}
}
function onError(err, errback) {
var ids = err.requireModules,
notified = false;
if (errback) {
errback(err);
} else {
each(ids, function (id) {
var mod = getOwn(registry, id);
if (mod) {
//Set error on module, so it skips timeout checks.
mod.error = err;
if (mod.events.error) {
notified = true;
mod.emit('error', err);
}
}
});
if (!notified) {
req.onError(err);
}
}
}
/**
* Internal method to transfer globalQueue items to this context's
* defQueue.
*/
function takeGlobalQueue() {
//Push all the globalDefQueue items into the context's defQueue
if (globalDefQueue.length) {
//Array splice in the values since the context code has a
//local var ref to defQueue, so cannot just reassign the one
//on context.
apsp.apply(defQueue,
[defQueue.length - 1, 0].concat(globalDefQueue));
globalDefQueue = [];
}
}
handlers = {
'require': function (mod) {
if (mod.require) {
return mod.require;
} else {
return (mod.require = context.makeRequire(mod.map));
}
},
'exports': function (mod) {
mod.usingExports = true;
if (mod.map.isDefine) {
if (mod.exports) {
return mod.exports;
} else {
return (mod.exports = defined[mod.map.id] = {});
}
}
},
'module': function (mod) {
if (mod.module) {
return mod.module;
} else {
return (mod.module = {
id: mod.map.id,
uri: mod.map.url,
config: function () {
return (config.config && getOwn(config.config, mod.map.id)) || {};
},
exports: defined[mod.map.id]
});
}
}
};
function cleanRegistry(id) {
//Clean up machinery used for waiting modules.
delete registry[id];
delete enabledRegistry[id];
}
function breakCycle(mod, traced, processed) {
var id = mod.map.id;
if (mod.error) {
mod.emit('error', mod.error);
} else {
traced[id] = true;
each(mod.depMaps, function (depMap, i) {
var depId = depMap.id,
dep = getOwn(registry, depId);
//Only force things that have not completed
//being defined, so still in the registry,
//and only if it has not been matched up
//in the module already.
if (dep && !mod.depMatched[i] && !processed[depId]) {
if (getOwn(traced, depId)) {
mod.defineDep(i, defined[depId]);
mod.check(); //pass false?
} else {
breakCycle(dep, traced, processed);
}
}
});
processed[id] = true;
}
}
function checkLoaded() {
var map, modId, err, usingPathFallback,
waitInterval = config.waitSeconds * 1000,
//It is possible to disable the wait interval by using waitSeconds of 0.
expired = waitInterval && (context.startTime + waitInterval) < new Date().getTime(),
noLoads = [],
reqCalls = [],
stillLoading = false,
needCycleCheck = true;
//Do not bother if this call was a result of a cycle break.
if (inCheckLoaded) {
return;
}
inCheckLoaded = true;
//Figure out the state of all the modules.
eachProp(enabledRegistry, function (mod) {
map = mod.map;
modId = map.id;
//Skip things that are not enabled or in error state.
if (!mod.enabled) {
return;
}
if (!map.isDefine) {
reqCalls.push(mod);
}
if (!mod.error) {
//If the module should be executed, and it has not
//been inited and time is up, remember it.
if (!mod.inited && expired) {
if (hasPathFallback(modId)) {
usingPathFallback = true;
stillLoading = true;
} else {
noLoads.push(modId);
removeScript(modId);
}
} else if (!mod.inited && mod.fetched && map.isDefine) {
stillLoading = true;
if (!map.prefix) {
//No reason to keep looking for unfinished
//loading. If the only stillLoading is a
//plugin resource though, keep going,
//because it may be that a plugin resource
//is waiting on a non-plugin cycle.
return (needCycleCheck = false);
}
}
}
});
if (expired && noLoads.length) {
//If wait time expired, throw error of unloaded modules.
err = makeError('timeout', 'Load timeout for modules: ' + noLoads, null, noLoads);
err.contextName = context.contextName;
return onError(err);
}
//Not expired, check for a cycle.
if (needCycleCheck) {
each(reqCalls, function (mod) {
breakCycle(mod, {}, {});
});
}
//If still waiting on loads, and the waiting load is something
//other than a plugin resource, or there are still outstanding
//scripts, then just try back later.
if ((!expired || usingPathFallback) && stillLoading) {
//Something is still waiting to load. Wait for it, but only
//if a timeout is not already in effect.
if ((isBrowser || isWebWorker) && !checkLoadedTimeoutId) {
checkLoadedTimeoutId = setTimeout(function () {
checkLoadedTimeoutId = 0;
checkLoaded();
}, 50);
}
}
inCheckLoaded = false;
}
Module = function (map) {
this.events = getOwn(undefEvents, map.id) || {};
this.map = map;
this.shim = getOwn(config.shim, map.id);
this.depExports = [];
this.depMaps = [];
this.depMatched = [];
this.pluginMaps = {};
this.depCount = 0;
/* this.exports this.factory
this.depMaps = [],
this.enabled, this.fetched
*/
};
Module.prototype = {
init: function (depMaps, factory, errback, options) {
options = options || {};
//Do not do more inits if already done. Can happen if there
//are multiple define calls for the same module. That is not
//a normal, common case, but it is also not unexpected.
if (this.inited) {
return;
}
this.factory = factory;
if (errback) {
//Register for errors on this module.
this.on('error', errback);
} else if (this.events.error) {
//If no errback already, but there are error listeners
//on this module, set up an errback to pass to the deps.
errback = bind(this, function (err) {
this.emit('error', err);
});
}
//Do a copy of the dependency array, so that
//source inputs are not modified. For example
//"shim" deps are passed in here directly, and
//doing a direct modification of the depMaps array
//would affect that config.
this.depMaps = depMaps && depMaps.slice(0);
this.errback = errback;
//Indicate this module has be initialized
this.inited = true;
this.ignore = options.ignore;
//Could have option to init this module in enabled mode,
//or could have been previously marked as enabled. However,
//the dependencies are not known until init is called. So
//if enabled previously, now trigger dependencies as enabled.
if (options.enabled || this.enabled) {
//Enable this module and dependencies.
//Will call this.check()
this.enable();
} else {
this.check();
}
},
defineDep: function (i, depExports) {
//Because of cycles, defined callback for a given
//export can be called more than once.
if (!this.depMatched[i]) {
this.depMatched[i] = true;
this.depCount -= 1;
this.depExports[i] = depExports;
}
},
fetch: function () {
if (this.fetched) {
return;
}
this.fetched = true;
context.startTime = (new Date()).getTime();
var map = this.map;
//If the manager is for a plugin managed resource,
//ask the plugin to load it now.
if (this.shim) {
context.makeRequire(this.map, {
enableBuildCallback: true
})(this.shim.deps || [], bind(this, function () {
return map.prefix ? this.callPlugin() : this.load();
}));
} else {
//Regular dependency.
return map.prefix ? this.callPlugin() : this.load();
}
},
load: function () {
var url = this.map.url;
//Regular dependency.
if (!urlFetched[url]) {
urlFetched[url] = true;
context.load(this.map.id, url);
}
},
/**
* Checks if the module is ready to define itself, and if so,
* define it.
*/
check: function () {
if (!this.enabled || this.enabling) {
return;
}
var err, cjsModule,
id = this.map.id,
depExports = this.depExports,
exports = this.exports,
factory = this.factory;
if (!this.inited) {
this.fetch();
} else if (this.error) {
this.emit('error', this.error);
} else if (!this.defining) {
//The factory could trigger another require call
//that would result in checking this module to
//define itself again. If already in the process
//of doing that, skip this work.
this.defining = true;
if (this.depCount < 1 && !this.defined) {
if (isFunction(factory)) {
//If there is an error listener, favor passing
//to that instead of throwing an error.
if (this.events.error) {
try {
exports = context.execCb(id, factory, depExports, exports);
} catch (e) {
err = e;
}
} else {
exports = context.execCb(id, factory, depExports, exports);
}
if (this.map.isDefine) {
//If setting exports via 'module' is in play,
//favor that over return value and exports. After that,
//favor a non-undefined return value over exports use.
cjsModule = this.module;
if (cjsModule &&
cjsModule.exports !== undefined &&
//Make sure it is not already the exports value
cjsModule.exports !== this.exports) {
exports = cjsModule.exports;
} else if (exports === undefined && this.usingExports) {
//exports already set the defined value.
exports = this.exports;
}
}
if (err) {
err.requireMap = this.map;
err.requireModules = [this.map.id];
err.requireType = 'define';
return onError((this.error = err));
}
} else {
//Just a literal value
exports = factory;
}
this.exports = exports;
if (this.map.isDefine && !this.ignore) {
defined[id] = exports;
if (req.onResourceLoad) {
req.onResourceLoad(context, this.map, this.depMaps);
}
}
//Clean up
cleanRegistry(id);
this.defined = true;
}
//Finished the define stage. Allow calling check again
//to allow define notifications below in the case of a
//cycle.
this.defining = false;
if (this.defined && !this.defineEmitted) {
this.defineEmitted = true;
this.emit('defined', this.exports);
this.defineEmitComplete = true;
}
}
},
callPlugin: function () {
var map = this.map,
id = map.id,
//Map already normalized the prefix.
pluginMap = makeModuleMap(map.prefix);
//Mark this as a dependency for this plugin, so it
//can be traced for cycles.
this.depMaps.push(pluginMap);
on(pluginMap, 'defined', bind(this, function (plugin) {
var load, normalizedMap, normalizedMod,
name = this.map.name,
parentName = this.map.parentMap ? this.map.parentMap.name : null,
localRequire = context.makeRequire(map.parentMap, {
enableBuildCallback: true
});
//If current map is not normalized, wait for that
//normalized name to load instead of continuing.
if (this.map.unnormalized) {
//Normalize the ID if the plugin allows it.
if (plugin.normalize) {
name = plugin.normalize(name, function (name) {
return normalize(name, parentName, true);
}) || '';
}
//prefix and name should already be normalized, no need
//for applying map config again either.
normalizedMap = makeModuleMap(map.prefix + '!' + name,
this.map.parentMap);
on(normalizedMap,
'defined', bind(this, function (value) {
this.init([], function () { return value; }, null, {
enabled: true,
ignore: true
});
}));
normalizedMod = getOwn(registry, normalizedMap.id);
if (normalizedMod) {
//Mark this as a dependency for this plugin, so it
//can be traced for cycles.
this.depMaps.push(normalizedMap);
if (this.events.error) {
normalizedMod.on('error', bind(this, function (err) {
this.emit('error', err);
}));
}
normalizedMod.enable();
}
return;
}
load = bind(this, function (value) {
this.init([], function () { return value; }, null, {
enabled: true
});
});
load.error = bind(this, function (err) {
this.inited = true;
this.error = err;
err.requireModules = [id];
//Remove temp unnormalized modules for this module,
//since they will never be resolved otherwise now.
eachProp(registry, function (mod) {
if (mod.map.id.indexOf(id + '_unnormalized') === 0) {
cleanRegistry(mod.map.id);
}
});
onError(err);
});
//Allow plugins to load other code without having to know the
//context or how to 'complete' the load.
load.fromText = bind(this, function (text, textAlt) {
/*jslint evil: true */
var moduleName = map.name,
moduleMap = makeModuleMap(moduleName),
hasInteractive = useInteractive;
//As of 2.1.0, support just passing the text, to reinforce
//fromText only being called once per resource. Still
//support old style of passing moduleName but discard
//that moduleName in favor of the internal ref.
if (textAlt) {
text = textAlt;
}
//Turn off interactive script matching for IE for any define
//calls in the text, then turn it back on at the end.
if (hasInteractive) {
useInteractive = false;
}
//Prime the system by creating a module instance for
//it.
getModule(moduleMap);
//Transfer any config to this other module.
if (hasProp(config.config, id)) {
config.config[moduleName] = config.config[id];
}
try {
req.exec(text);
} catch (e) {
return onError(makeError('fromtexteval',
'fromText eval for ' + id +
' failed: ' + e,
e,
[id]));
}
if (hasInteractive) {
useInteractive = true;
}
//Mark this as a dependency for the plugin
//resource
this.depMaps.push(moduleMap);
//Support anonymous modules.
context.completeLoad(moduleName);
//Bind the value of that module to the value for this
//resource ID.
localRequire([moduleName], load);
});
//Use parentName here since the plugin's name is not reliable,
//could be some weird string with no path that actually wants to
//reference the parentName's path.
plugin.load(map.name, localRequire, load, config);
}));
context.enable(pluginMap, this);
this.pluginMaps[pluginMap.id] = pluginMap;
},
enable: function () {
enabledRegistry[this.map.id] = this;
this.enabled = true;
//Set flag mentioning that the module is enabling,
//so that immediate calls to the defined callbacks
//for dependencies do not trigger inadvertent load
//with the depCount still being zero.
this.enabling = true;
//Enable each dependency
each(this.depMaps, bind(this, function (depMap, i) {
var id, mod, handler;
if (typeof depMap === 'string') {
//Dependency needs to be converted to a depMap
//and wired up to this module.
depMap = makeModuleMap(depMap,
(this.map.isDefine ? this.map : this.map.parentMap),
false,
!this.skipMap);
this.depMaps[i] = depMap;
handler = getOwn(handlers, depMap.id);
if (handler) {
this.depExports[i] = handler(this);
return;
}
this.depCount += 1;
on(depMap, 'defined', bind(this, function (depExports) {
this.defineDep(i, depExports);
this.check();
}));
if (this.errback) {
on(depMap, 'error', this.errback);
}
}
id = depMap.id;
mod = registry[id];
//Skip special modules like 'require', 'exports', 'module'
//Also, don't call enable if it is already enabled,
//important in circular dependency cases.
if (!hasProp(handlers, id) && mod && !mod.enabled) {
context.enable(depMap, this);
}
}));
//Enable each plugin that is used in
//a dependency
eachProp(this.pluginMaps, bind(this, function (pluginMap) {
var mod = getOwn(registry, pluginMap.id);
if (mod && !mod.enabled) {
context.enable(pluginMap, this);
}
}));
this.enabling = false;
this.check();
},
on: function (name, cb) {
var cbs = this.events[name];
if (!cbs) {
cbs = this.events[name] = [];
}
cbs.push(cb);
},
emit: function (name, evt) {
each(this.events[name], function (cb) {
cb(evt);
});
if (name === 'error') {
//Now that the error handler was triggered, remove
//the listeners, since this broken Module instance
//can stay around for a while in the registry.
delete this.events[name];
}
}
};
function callGetModule(args) {
//Skip modules already defined.
if (!hasProp(defined, args[0])) {
getModule(makeModuleMap(args[0], null, true)).init(args[1], args[2]);
}
}
function removeListener(node, func, name, ieName) {
//Favor detachEvent because of IE9
//issue, see attachEvent/addEventListener comment elsewhere
//in this file.
if (node.detachEvent && !isOpera) {
//Probably IE. If not it will throw an error, which will be
//useful to know.
if (ieName) {
node.detachEvent(ieName, func);
}
} else {
node.removeEventListener(name, func, false);
}
}
/**
* Given an event from a script node, get the requirejs info from it,
* and then removes the event listeners on the node.
* @param {Event} evt
* @returns {Object}
*/
function getScriptData(evt) {
//Using currentTarget instead of target for Firefox 2.0's sake. Not
//all old browsers will be supported, but this one was easy enough
//to support and still makes sense.
var node = evt.currentTarget || evt.srcElement;
//Remove the listeners once here.
removeListener(node, context.onScriptLoad, 'load', 'onreadystatechange');
removeListener(node, context.onScriptError, 'error');
return {
node: node,
id: node && node.getAttribute('data-requiremodule')
};
}
function intakeDefines() {
var args;
//Any defined modules in the global queue, intake them now.
takeGlobalQueue();
//Make sure any remaining defQueue items get properly processed.
while (defQueue.length) {
args = defQueue.shift();
if (args[0] === null) {
return onError(makeError('mismatch', 'Mismatched anonymous define() module: ' + args[args.length - 1]));
} else {
//args are id, deps, factory. Should be normalized by the
//define() function.
callGetModule(args);
}
}
}
context = {
config: config,
contextName: contextName,
registry: registry,
defined: defined,
urlFetched: urlFetched,
defQueue: defQueue,
Module: Module,
makeModuleMap: makeModuleMap,
nextTick: req.nextTick,
onError: onError,
/**
* Set a configuration for the context.
* @param {Object} cfg config object to integrate.
*/
configure: function (cfg) {
//Make sure the baseUrl ends in a slash.
if (cfg.baseUrl) {
if (cfg.baseUrl.charAt(cfg.baseUrl.length - 1) !== '/') {
cfg.baseUrl += '/';
}
}
//Save off the paths and packages since they require special processing,
//they are additive.
var pkgs = config.pkgs,
shim = config.shim,
objs = {
paths: true,
config: true,
map: true
};
eachProp(cfg, function (value, prop) {
if (objs[prop]) {
if (prop === 'map') {
if (!config.map) {
config.map = {};
}
mixin(config[prop], value, true, true);
} else {
mixin(config[prop], value, true);
}
} else {
config[prop] = value;
}
});
//Merge shim
if (cfg.shim) {
eachProp(cfg.shim, function (value, id) {
//Normalize the structure
if (isArray(value)) {
value = {
deps: value
};
}
if ((value.exports || value.init) && !value.exportsFn) {
value.exportsFn = context.makeShimExports(value);
}
shim[id] = value;
});
config.shim = shim;
}
//Adjust packages if necessary.
if (cfg.packages) {
each(cfg.packages, function (pkgObj) {
var location;
pkgObj = typeof pkgObj === 'string' ? { name: pkgObj } : pkgObj;
location = pkgObj.location;
//Create a brand new object on pkgs, since currentPackages can
//be passed in again, and config.pkgs is the internal transformed
//state for all package configs.
pkgs[pkgObj.name] = {
name: pkgObj.name,
location: location || pkgObj.name,
//Remove leading dot in main, so main paths are normalized,
//and remove any trailing .js, since different package
//envs have different conventions: some use a module name,
//some use a file name.
main: (pkgObj.main || 'main')
.replace(currDirRegExp, '')
.replace(jsSuffixRegExp, '')
};
});
//Done with modifications, assing packages back to context config
config.pkgs = pkgs;
}
//If there are any "waiting to execute" modules in the registry,
//update the maps for them, since their info, like URLs to load,
//may have changed.
eachProp(registry, function (mod, id) {
//If module already has init called, since it is too
//late to modify them, and ignore unnormalized ones
//since they are transient.
if (!mod.inited && !mod.map.unnormalized) {
mod.map = makeModuleMap(id);
}
});
//If a deps array or a config callback is specified, then call
//require with those args. This is useful when require is defined as a
//config object before require.js is loaded.
if (cfg.deps || cfg.callback) {
context.require(cfg.deps || [], cfg.callback);
}
},
makeShimExports: function (value) {
function fn() {
var ret;
if (value.init) {
ret = value.init.apply(global, arguments);
}
return ret || (value.exports && getGlobal(value.exports));
}
return fn;
},
makeRequire: function (relMap, options) {
options = options || {};
function localRequire(deps, callback, errback) {
var id, map, requireMod;
if (options.enableBuildCallback && callback && isFunction(callback)) {
callback.__requireJsBuild = true;
}
if (typeof deps === 'string') {
if (isFunction(callback)) {
//Invalid call
return onError(makeError('requireargs', 'Invalid require call'), errback);
}
//If require|exports|module are requested, get the
//value for them from the special handlers. Caveat:
//this only works while module is being defined.
if (relMap && hasProp(handlers, deps)) {
return handlers[deps](registry[relMap.id]);
}
//Synchronous access to one module. If require.get is
//available (as in the Node adapter), prefer that.
if (req.get) {
return req.get(context, deps, relMap, localRequire);
}
//Normalize module name, if it contains . or ..
map = makeModuleMap(deps, relMap, false, true);
id = map.id;
if (!hasProp(defined, id)) {
return onError(makeError('notloaded', 'Module name "' +
id +
'" has not been loaded yet for context: ' +
contextName +
(relMap ? '' : '. Use require([])')));
}
return defined[id];
}
//Grab defines waiting in the global queue.
intakeDefines();
//Mark all the dependencies as needing to be loaded.
context.nextTick(function () {
//Some defines could have been added since the
//require call, collect them.
intakeDefines();
requireMod = getModule(makeModuleMap(null, relMap));
//Store if map config should be applied to this require
//call for dependencies.
requireMod.skipMap = options.skipMap;
requireMod.init(deps, callback, errback, {
enabled: true
});
checkLoaded();
});
return localRequire;
}
mixin(localRequire, {
isBrowser: isBrowser,
/**
* Converts a module name + .extension into an URL path.
* *Requires* the use of a module name. It does not support using
* plain URLs like nameToUrl.
*/
toUrl: function (moduleNamePlusExt) {
var ext,
index = moduleNamePlusExt.lastIndexOf('.'),
segment = moduleNamePlusExt.split('/')[0],
isRelative = segment === '.' || segment === '..';
//Have a file extension alias, and it is not the
//dots from a relative path.
if (index !== -1 && (!isRelative || index > 1)) {
ext = moduleNamePlusExt.substring(index, moduleNamePlusExt.length);
moduleNamePlusExt = moduleNamePlusExt.substring(0, index);
}
return context.nameToUrl(normalize(moduleNamePlusExt,
relMap && relMap.id, true), ext, true);
},
defined: function (id) {
return hasProp(defined, makeModuleMap(id, relMap, false, true).id);
},
specified: function (id) {
id = makeModuleMap(id, relMap, false, true).id;
return hasProp(defined, id) || hasProp(registry, id);
}
});
//Only allow undef on top level require calls
if (!relMap) {
localRequire.undef = function (id) {
//Bind any waiting define() calls to this context,
//fix for #408
takeGlobalQueue();
var map = makeModuleMap(id, relMap, true),
mod = getOwn(registry, id);
delete defined[id];
delete urlFetched[map.url];
delete undefEvents[id];
if (mod) {
//Hold on to listeners in case the
//module will be attempted to be reloaded
//using a different config.
if (mod.events.defined) {
undefEvents[id] = mod.events;
}
cleanRegistry(id);
}
};
}
return localRequire;
},
/**
* Called to enable a module if it is still in the registry
* awaiting enablement. A second arg, parent, the parent module,
* is passed in for context, when this method is overriden by
* the optimizer. Not shown here to keep code compact.
*/
enable: function (depMap) {
var mod = getOwn(registry, depMap.id);
if (mod) {
getModule(depMap).enable();
}
},
/**
* Internal method used by environment adapters to complete a load event.
* A load event could be a script load or just a load pass from a synchronous
* load call.
* @param {String} moduleName the name of the module to potentially complete.
*/
completeLoad: function (moduleName) {
var found, args, mod,
shim = getOwn(config.shim, moduleName) || {},
shExports = shim.exports;
takeGlobalQueue();
while (defQueue.length) {
args = defQueue.shift();
if (args[0] === null) {
args[0] = moduleName;
//If already found an anonymous module and bound it
//to this name, then this is some other anon module
//waiting for its completeLoad to fire.
if (found) {
break;
}
found = true;
} else if (args[0] === moduleName) {
//Found matching define call for this script!
found = true;
}
callGetModule(args);
}
//Do this after the cycle of callGetModule in case the result
//of those calls/init calls changes the registry.
mod = getOwn(registry, moduleName);
if (!found && !hasProp(defined, moduleName) && mod && !mod.inited) {
if (config.enforceDefine && (!shExports || !getGlobal(shExports))) {
if (hasPathFallback(moduleName)) {
return;
} else {
return onError(makeError('nodefine',
'No define call for ' + moduleName,
null,
[moduleName]));
}
} else {
//A script that does not call define(), so just simulate
//the call for it.
callGetModule([moduleName, (shim.deps || []), shim.exportsFn]);
}
}
checkLoaded();
},
/**
* Converts a module name to a file path. Supports cases where
* moduleName may actually be just an URL.
* Note that it **does not** call normalize on the moduleName,
* it is assumed to have already been normalized. This is an
* internal API, not a public one. Use toUrl for the public API.
*/
nameToUrl: function (moduleName, ext, skipExt) {
var paths, pkgs, pkg, pkgPath, syms, i, parentModule, url,
parentPath;
//If a colon is in the URL, it indicates a protocol is used and it is just
//an URL to a file, or if it starts with a slash, contains a query arg (i.e. ?)
//or ends with .js, then assume the user meant to use an url and not a module id.
//The slash is important for protocol-less URLs as well as full paths.
if (req.jsExtRegExp.test(moduleName)) {
//Just a plain path, not module name lookup, so just return it.
//Add extension if it is included. This is a bit wonky, only non-.js things pass
//an extension, this method probably needs to be reworked.
url = moduleName + (ext || '');
} else {
//A module that needs to be converted to a path.
paths = config.paths;
pkgs = config.pkgs;
syms = moduleName.split('/');
//For each module name segment, see if there is a path
//registered for it. Start with most specific name
//and work up from it.
for (i = syms.length; i > 0; i -= 1) {
parentModule = syms.slice(0, i).join('/');
pkg = getOwn(pkgs, parentModule);
parentPath = getOwn(paths, parentModule);
if (parentPath) {
//If an array, it means there are a few choices,
//Choose the one that is desired
if (isArray(parentPath)) {
parentPath = parentPath[0];
}
syms.splice(0, i, parentPath);
break;
} else if (pkg) {
//If module name is just the package name, then looking
//for the main module.
if (moduleName === pkg.name) {
pkgPath = pkg.location + '/' + pkg.main;
} else {
pkgPath = pkg.location;
}
syms.splice(0, i, pkgPath);
break;
}
}
//Join the path parts together, then figure out if baseUrl is needed.
url = syms.join('/');
url += (ext || (/\?/.test(url) || skipExt ? '' : '.js'));
url = (url.charAt(0) === '/' || url.match(/^[\w\+\.\-]+:/) ? '' : config.baseUrl) + url;
}
return config.urlArgs ? url +
((url.indexOf('?') === -1 ? '?' : '&') +
config.urlArgs) : url;
},
//Delegates to req.load. Broken out as a separate function to
//allow overriding in the optimizer.
load: function (id, url) {
req.load(context, id, url);
},
/**
* Executes a module callack function. Broken out as a separate function
* solely to allow the build system to sequence the files in the built
* layer in the right sequence.
*
* @private
*/
execCb: function (name, callback, args, exports) {
return callback.apply(exports, args);
},
/**
* callback for script loads, used to check status of loading.
*
* @param {Event} evt the event from the browser for the script
* that was loaded.
*/
onScriptLoad: function (evt) {
//Using currentTarget instead of target for Firefox 2.0's sake. Not
//all old browsers will be supported, but this one was easy enough
//to support and still makes sense.
if (evt.type === 'load' ||
(readyRegExp.test((evt.currentTarget || evt.srcElement).readyState))) {
//Reset interactive script so a script node is not held onto for
//to long.
interactiveScript = null;
//Pull out the name of the module and the context.
var data = getScriptData(evt);
context.completeLoad(data.id);
}
},
/**
* Callback for script errors.
*/
onScriptError: function (evt) {
var data = getScriptData(evt);
if (!hasPathFallback(data.id)) {
return onError(makeError('scripterror', 'Script error', evt, [data.id]));
}
}
};
context.require = context.makeRequire();
return context;
}
/**
* Main entry point.
*
* If the only argument to require is a string, then the module that
* is represented by that string is fetched for the appropriate context.
*
* If the first argument is an array, then it will be treated as an array
* of dependency string names to fetch. An optional function callback can
* be specified to execute when all of those dependencies are available.
*
* Make a local req variable to help Caja compliance (it assumes things
* on a require that are not standardized), and to give a short
* name for minification/local scope use.
*/
req = requirejs = function (deps, callback, errback, optional) {
//Find the right context, use default
var context, config,
contextName = defContextName;
// Determine if have config object in the call.
if (!isArray(deps) && typeof deps !== 'string') {
// deps is a config object
config = deps;
if (isArray(callback)) {
// Adjust args if there are dependencies
deps = callback;
callback = errback;
errback = optional;
} else {
deps = [];
}
}
if (config && config.context) {
contextName = config.context;
}
context = getOwn(contexts, contextName);
if (!context) {
context = contexts[contextName] = req.s.newContext(contextName);
}
if (config) {
context.configure(config);
}
return context.require(deps, callback, errback);
};
/**
* Support require.config() to make it easier to cooperate with other
* AMD loaders on globally agreed names.
*/
req.config = function (config) {
return req(config);
};
/**
* Execute something after the current tick
* of the event loop. Override for other envs
* that have a better solution than setTimeout.
* @param {Function} fn function to execute later.
*/
req.nextTick = typeof setTimeout !== 'undefined' ? function (fn) {
setTimeout(fn, 4);
} : function (fn) { fn(); };
/**
* Export require as a global, but only if it does not already exist.
*/
if (!require) {
require = req;
}
req.version = version;
//Used to filter out dependencies that are already paths.
req.jsExtRegExp = /^\/|:|\?|\.js$/;
req.isBrowser = isBrowser;
s = req.s = {
contexts: contexts,
newContext: newContext
};
//Create default context.
req({});
//Exports some context-sensitive methods on global require.
each([
'toUrl',
'undef',
'defined',
'specified'
], function (prop) {
//Reference from contexts instead of early binding to default context,
//so that during builds, the latest instance of the default context
//with its config gets used.
req[prop] = function () {
var ctx = contexts[defContextName];
return ctx.require[prop].apply(ctx, arguments);
};
});
if (isBrowser) {
head = s.head = document.getElementsByTagName('head')[0];
//If BASE tag is in play, using appendChild is a problem for IE6.
//When that browser dies, this can be removed. Details in this jQuery bug:
//http://dev.jquery.com/ticket/2709
baseElement = document.getElementsByTagName('base')[0];
if (baseElement) {
head = s.head = baseElement.parentNode;
}
}
/**
* Any errors that require explicitly generates will be passed to this
* function. Intercept/override it if you want custom error handling.
* @param {Error} err the error object.
*/
req.onError = function (err) {
throw err;
};
/**
* Does the request to load a module for the browser case.
* Make this a separate function to allow other environments
* to override it.
*
* @param {Object} context the require context to find state.
* @param {String} moduleName the name of the module.
* @param {Object} url the URL to the module.
*/
req.load = function (context, moduleName, url) {
var config = (context && context.config) || {},
node;
if (isBrowser) {
//In the browser so use a script tag
node = config.xhtml ?
document.createElementNS('http://www.w3.org/1999/xhtml', 'html:script') :
document.createElement('script');
node.type = config.scriptType || 'text/javascript';
node.charset = 'utf-8';
node.async = true;
node.setAttribute('data-requirecontext', context.contextName);
node.setAttribute('data-requiremodule', moduleName);
//Set up load listener. Test attachEvent first because IE9 has
//a subtle issue in its addEventListener and script onload firings
//that do not match the behavior of all other browsers with
//addEventListener support, which fire the onload event for a
//script right after the script execution. See:
//https://connect.microsoft.com/IE/feedback/details/648057/script-onload-event-is-not-fired-immediately-after-script-execution
//UNFORTUNATELY Opera implements attachEvent but does not follow the script
//script execution mode.
if (node.attachEvent &&
//Check if node.attachEvent is artificially added by custom script or
//natively supported by browser
//read https://github.com/jrburke/requirejs/issues/187
//if we can NOT find [native code] then it must NOT natively supported.
//in IE8, node.attachEvent does not have toString()
//Note the test for "[native code" with no closing brace, see:
//https://github.com/jrburke/requirejs/issues/273
!(node.attachEvent.toString && node.attachEvent.toString().indexOf('[native code') < 0) &&
!isOpera) {
//Probably IE. IE (at least 6-8) do not fire
//script onload right after executing the script, so
//we cannot tie the anonymous define call to a name.
//However, IE reports the script as being in 'interactive'
//readyState at the time of the define call.
useInteractive = true;
node.attachEvent('onreadystatechange', context.onScriptLoad);
//It would be great to add an error handler here to catch
//404s in IE9+. However, onreadystatechange will fire before
//the error handler, so that does not help. If addEventListener
//is used, then IE will fire error before load, but we cannot
//use that pathway given the connect.microsoft.com issue
//mentioned above about not doing the 'script execute,
//then fire the script load event listener before execute
//next script' that other browsers do.
//Best hope: IE10 fixes the issues,
//and then destroys all installs of IE 6-9.
//node.attachEvent('onerror', context.onScriptError);
} else {
node.addEventListener('load', context.onScriptLoad, false);
node.addEventListener('error', context.onScriptError, false);
}
node.src = url;
//For some cache cases in IE 6-8, the script executes before the end
//of the appendChild execution, so to tie an anonymous define
//call to the module name (which is stored on the node), hold on
//to a reference to this node, but clear after the DOM insertion.
currentlyAddingScript = node;
if (baseElement) {
head.insertBefore(node, baseElement);
} else {
head.appendChild(node);
}
currentlyAddingScript = null;
return node;
} else if (isWebWorker) {
try {
//In a web worker, use importScripts. This is not a very
//efficient use of importScripts, importScripts will block until
//its script is downloaded and evaluated. However, if web workers
//are in play, the expectation that a build has been done so that
//only one script needs to be loaded anyway. This may need to be
//reevaluated if other use cases become common.
importScripts(url);
//Account for anonymous modules
context.completeLoad(moduleName);
} catch (e) {
context.onError(makeError('importscripts',
'importScripts failed for ' +
moduleName + ' at ' + url,
e,
[moduleName]));
}
}
};
function getInteractiveScript() {
if (interactiveScript && interactiveScript.readyState === 'interactive') {
return interactiveScript;
}
eachReverse(scripts(), function (script) {
if (script.readyState === 'interactive') {
return (interactiveScript = script);
}
});
return interactiveScript;
}
//Look for a data-main script attribute, which could also adjust the baseUrl.
if (isBrowser) {
//Figure out baseUrl. Get it from the script tag with require.js in it.
eachReverse(scripts(), function (script) {
//Set the 'head' where we can append children by
//using the script's parent.
if (!head) {
head = script.parentNode;
}
//Look for a data-main attribute to set main script for the page
//to load. If it is there, the path to data main becomes the
//baseUrl, if it is not already set.
dataMain = script.getAttribute('data-main');
if (dataMain) {
//Set final baseUrl if there is not already an explicit one.
if (!cfg.baseUrl) {
//Pull off the directory of data-main for use as the
//baseUrl.
src = dataMain.split('/');
mainScript = src.pop();
subPath = src.length ? src.join('/') + '/' : './';
cfg.baseUrl = subPath;
dataMain = mainScript;
}
//Strip off any trailing .js since dataMain is now
//like a module name.
dataMain = dataMain.replace(jsSuffixRegExp, '');
//Put the data-main script in the files to load.
cfg.deps = cfg.deps ? cfg.deps.concat(dataMain) : [dataMain];
return true;
}
});
}
/**
* The function that handles definitions of modules. Differs from
* require() in that a string for the module should be the first argument,
* and the function to execute after dependencies are loaded should
* return a value to define the module corresponding to the first argument's
* name.
*/
define = function (name, deps, callback) {
var node, context;
//Allow for anonymous modules
if (typeof name !== 'string') {
//Adjust args appropriately
callback = deps;
deps = name;
name = null;
}
//This module may not have dependencies
if (!isArray(deps)) {
callback = deps;
deps = [];
}
//If no name, and callback is a function, then figure out if it a
//CommonJS thing with dependencies.
if (!deps.length && isFunction(callback)) {
//Remove comments from the callback string,
//look for require calls, and pull them into the dependencies,
//but only if there are function args.
if (callback.length) {
callback
.toString()
.replace(commentRegExp, '')
.replace(cjsRequireRegExp, function (match, dep) {
deps.push(dep);
});
//May be a CommonJS thing even without require calls, but still
//could use exports, and module. Avoid doing exports and module
//work though if it just needs require.
//REQUIRES the function to expect the CommonJS variables in the
//order listed below.
deps = (callback.length === 1 ? ['require'] : ['require', 'exports', 'module']).concat(deps);
}
}
//If in IE 6-8 and hit an anonymous define() call, do the interactive
//work.
if (useInteractive) {
node = currentlyAddingScript || getInteractiveScript();
if (node) {
if (!name) {
name = node.getAttribute('data-requiremodule');
}
context = contexts[node.getAttribute('data-requirecontext')];
}
}
//Always save off evaluating the def call until the script onload handler.
//This allows multiple modules to be in a file without prematurely
//tracing dependencies, and allows for anonymous module support,
//where the module name is not known until the script onload event
//occurs. If no context, use the global queue, and get it processed
//in the onscript load callback.
(context ? context.defQueue : globalDefQueue).push([name, deps, callback]);
};
define.amd = {
jQuery: true
};
/**
* Executes the text. Normally just uses eval, but can be modified
* to use a better, environment-specific call. Only used for transpiling
* loader plugins, not for plain JS modules.
* @param {String} text the text to execute/evaluate.
*/
req.exec = function (text) {
/*jslint evil: true */
return eval(text);
};
//Set up with config info.
req(cfg);
}(this));
Raw
reverseRelationTest_js_Main.js
/**
* Created by matt on 10/10/13.
*/
define(["Person"], function(Person){
var person = new Person();
person.set("house", {
windows:4
});
alert(person.get("house"))
})
Raw
reverseRelationTest_js_Person.js
/**
* Created by matt on 10/10/13.
*/
define([
"backbone.associations",
"House"
], function(Associations, House){
var Person = Backbone.AssociatedModel.extend({
relations:[{
key:"house",
type:Backbone.One,
relatedModel: function(){ return House;}
}]
});
return Person;
})
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