Created
December 18, 2011 06:52
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tokenInput #219 2.0
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/* | |
* jQuery Plugin: Tokenizing Autocomplete Text Entry | |
* Version 1.6.0 | |
* | |
* Copyright (c) 2009 James Smith (http://loopj.com) | |
* Licensed jointly under the GPL and MIT licenses, | |
* choose which one suits your project best! | |
* | |
*/ | |
(function ($) { | |
// Default settings | |
var DEFAULT_SETTINGS = { | |
// Search settings | |
method: "GET", | |
queryParam: "q", | |
searchDelay: 300, | |
minChars: 1, | |
propertyToSearch: "name", | |
jsonContainer: null, | |
contentType: "json", | |
allowCreation: false, | |
creationPosition: "bottom", | |
// Prepopulation settings | |
prePopulate: null, | |
processPrePopulate: false, | |
// Display settings | |
hintText: "Type in a search term", | |
noResultsText: "No results", | |
searchingText: "Searching...", | |
deleteText: "×", | |
createTokenText: "", | |
animateDropdown: false, | |
theme: null, | |
resultsFormatter: function(item){ return "<li>" + item[this.propertyToSearch]+ "</li>" }, | |
tokenFormatter: function(item) { return "<li><p>" + item[this.propertyToSearch] + "</p></li>" }, | |
// Tokenization settings | |
tokenLimit: null, | |
tokenDelimiter: ",", | |
preventDuplicates: false, | |
tokenValue: "id", | |
// Callbacks | |
onResult: null, | |
onAdd: null, | |
onDelete: null, | |
onReady: null, | |
// Other settings | |
idPrefix: "token-input-", | |
// Keep track if the input is currently in disabled mode | |
disabled: false | |
}; | |
// Default classes to use when theming | |
var DEFAULT_CLASSES = { | |
tokenList: "token-input-list", | |
token: "token-input-token", | |
tokenDelete: "token-input-delete-token", | |
selectedToken: "token-input-selected-token", | |
highlightedToken: "token-input-highlighted-token", | |
dropdown: "token-input-dropdown", | |
dropdownItem: "token-input-dropdown-item", | |
dropdownItem2: "token-input-dropdown-item2", | |
selectedDropdownItem: "token-input-selected-dropdown-item", | |
inputToken: "token-input-input-token", | |
disabled: "token-input-disabled" | |
}; | |
// Input box position "enum" | |
var POSITION = { | |
BEFORE: 0, | |
AFTER: 1, | |
END: 2 | |
}; | |
// Keys "enum" | |
var KEY = { | |
BACKSPACE: 8, | |
TAB: 9, | |
ENTER: 13, | |
ESCAPE: 27, | |
SPACE: 32, | |
PAGE_UP: 33, | |
PAGE_DOWN: 34, | |
END: 35, | |
HOME: 36, | |
LEFT: 37, | |
UP: 38, | |
RIGHT: 39, | |
DOWN: 40, | |
NUMPAD_ENTER: 108, | |
COMMA: 188 | |
}; | |
// Additional public (exposed) methods | |
var methods = { | |
init: function(url_or_data_or_function, options) { | |
var settings = $.extend({}, DEFAULT_SETTINGS, options || {}); | |
return this.each(function () { | |
$(this).data("tokenInputObject", new $.TokenList(this, url_or_data_or_function, settings)); | |
}); | |
}, | |
clear: function() { | |
this.data("tokenInputObject").clear(); | |
return this; | |
}, | |
add: function(item) { | |
this.data("tokenInputObject").add(item); | |
return this; | |
}, | |
remove: function(item) { | |
this.data("tokenInputObject").remove(item); | |
return this; | |
}, | |
get: function() { | |
return this.data("tokenInputObject").getTokens(); | |
} | |
} | |
// Expose the .tokenInput function to jQuery as a plugin | |
$.fn.tokenInput = function (method) { | |
// Method calling and initialization logic | |
if(methods[method]) { | |
return methods[method].apply(this, Array.prototype.slice.call(arguments, 1)); | |
} else { | |
return methods.init.apply(this, arguments); | |
} | |
}; | |
// TokenList class for each input | |
$.TokenList = function (input, url_or_data, settings) { | |
// | |
// Initialization | |
// | |
// Configure the data source | |
if($.type(url_or_data) === "string" || $.type(url_or_data) === "function") { | |
// Set the url to query against | |
settings.url = url_or_data; | |
// If the URL is a function, evaluate it here to do our initalization work | |
var url = computeURL(); | |
// Make a smart guess about cross-domain if it wasn't explicitly specified | |
if(settings.crossDomain === undefined) { | |
if(url.indexOf("://") === -1) { | |
settings.crossDomain = false; | |
} else { | |
settings.crossDomain = (location.href.split(/\/+/g)[1] !== url.split(/\/+/g)[1]); | |
} | |
} | |
} else if(typeof(url_or_data) === "object") { | |
// Set the local data to search through | |
settings.local_data = url_or_data; | |
} | |
// Build class names | |
if(settings.classes) { | |
// Use custom class names | |
settings.classes = $.extend({}, DEFAULT_CLASSES, settings.classes); | |
} else if(settings.theme) { | |
// Use theme-suffixed default class names | |
settings.classes = {}; | |
$.each(DEFAULT_CLASSES, function(key, value) { | |
settings.classes[key] = value + "-" + settings.theme; | |
}); | |
} else { | |
settings.classes = DEFAULT_CLASSES; | |
} | |
// Save the tokens | |
var saved_tokens = []; | |
// Keep track of the number of tokens in the list | |
var token_count = 0; | |
// Basic cache to save on db hits | |
var cache = new $.TokenList.Cache(); | |
// Keep track of the timeout, old vals | |
var timeout; | |
var input_val; | |
// Create a new text input an attach keyup events | |
var input_box = $("<input type=\"text\" autocomplete=\"off\">") | |
.css({ | |
outline: "none" | |
}) | |
.attr("id", settings.idPrefix + input.id) | |
.focus(function () { | |
if (settings.tokenLimit === null || settings.tokenLimit !== token_count) { | |
show_dropdown_hint(); | |
} | |
}) | |
.blur(function () { | |
hide_dropdown(); | |
$(this).val(""); | |
}) | |
.bind("keyup keydown blur update", resize_input) | |
.keydown(function (event) { | |
var previous_token; | |
var next_token; | |
switch(event.keyCode) { | |
case KEY.LEFT: | |
case KEY.RIGHT: | |
case KEY.UP: | |
case KEY.DOWN: | |
if(!$(this).val()) { | |
previous_token = input_token.prev(); | |
next_token = input_token.next(); | |
if((previous_token.length && previous_token.get(0) === selected_token) || (next_token.length && next_token.get(0) === selected_token)) { | |
// Check if there is a previous/next token and it is selected | |
if(event.keyCode === KEY.LEFT || event.keyCode === KEY.UP) { | |
deselect_token($(selected_token), POSITION.BEFORE); | |
} else { | |
deselect_token($(selected_token), POSITION.AFTER); | |
} | |
} else if((event.keyCode === KEY.LEFT || event.keyCode === KEY.UP) && previous_token.length) { | |
// We are moving left, select the previous token if it exists | |
select_token($(previous_token.get(0))); | |
} else if((event.keyCode === KEY.RIGHT || event.keyCode === KEY.DOWN) && next_token.length) { | |
// We are moving right, select the next token if it exists | |
select_token($(next_token.get(0))); | |
} | |
} else { | |
var dropdown_item = null; | |
if(event.keyCode === KEY.DOWN || event.keyCode === KEY.RIGHT) { | |
dropdown_item = $(selected_dropdown_item).next(); | |
} else { | |
dropdown_item = $(selected_dropdown_item).prev(); | |
} | |
if(dropdown_item.length) { | |
select_dropdown_item(dropdown_item); | |
} | |
return false; | |
} | |
break; | |
case KEY.BACKSPACE: | |
previous_token = input_token.prev(); | |
if(!$(this).val().length) { | |
if(selected_token) { | |
delete_token($(selected_token)); | |
hidden_input.change(); | |
} else if(previous_token.length) { | |
select_token($(previous_token.get(0))); | |
} | |
return false; | |
} else if($(this).val().length === 1) { | |
hide_dropdown(); | |
} else { | |
// set a timeout just long enough to let this function finish. | |
setTimeout(function(){do_search();}, 5); | |
} | |
break; | |
case KEY.TAB: | |
case KEY.ENTER: | |
case KEY.NUMPAD_ENTER: | |
case KEY.COMMA: | |
if(selected_dropdown_item) { | |
add_token($(selected_dropdown_item).data("tokeninput")); | |
hidden_input.change(); | |
return false; | |
} | |
break; | |
case KEY.ESCAPE: | |
hide_dropdown(); | |
return true; | |
default: | |
if(String.fromCharCode(event.which)) { | |
// set a timeout just long enough to let this function finish. | |
setTimeout(function(){do_search();}, 5); | |
} | |
break; | |
} | |
}); | |
// Keep a reference to the original input box | |
var hidden_input = $(input) | |
.hide() | |
.val("") | |
.focus(function () { | |
input_box.focus(); | |
}) | |
.blur(function () { | |
input_box.blur(); | |
}); | |
// Keep a reference to the selected token and dropdown item | |
var selected_token = null; | |
var selected_token_index = 0; | |
var selected_dropdown_item = null; | |
// The list to store the token items in | |
var token_list = $("<ul />") | |
.addClass(settings.classes.tokenList) | |
.click(function (event) { | |
var li = $(event.target).closest("li"); | |
if(li && li.get(0) && $.data(li.get(0), "tokeninput")) { | |
toggle_select_token(li); | |
} else { | |
// Deselect selected token | |
if(selected_token) { | |
deselect_token($(selected_token), POSITION.END); | |
} | |
// Focus input box | |
input_box.focus(); | |
} | |
}) | |
.mouseover(function (event) { | |
var li = $(event.target).closest("li"); | |
if(li && selected_token !== this) { | |
li.addClass(settings.classes.highlightedToken); | |
} | |
}) | |
.mouseout(function (event) { | |
var li = $(event.target).closest("li"); | |
if(li && selected_token !== this) { | |
li.removeClass(settings.classes.highlightedToken); | |
} | |
}) | |
.insertBefore(hidden_input); | |
// The token holding the input box | |
var input_token = $("<li />") | |
.addClass(settings.classes.inputToken) | |
.appendTo(token_list) | |
.append(input_box); | |
// The list to store the dropdown items in | |
var dropdown = $("<div>") | |
.addClass(settings.classes.dropdown) | |
.appendTo("body") | |
.hide(); | |
// Magic element to help us resize the text input | |
var input_resizer = $("<tester/>") | |
.insertAfter(input_box) | |
.css({ | |
position: "absolute", | |
top: -9999, | |
left: -9999, | |
width: "auto", | |
fontSize: input_box.css("fontSize"), | |
fontFamily: input_box.css("fontFamily"), | |
fontWeight: input_box.css("fontWeight"), | |
letterSpacing: input_box.css("letterSpacing"), | |
whiteSpace: "nowrap" | |
}); | |
// Pre-populate list if items exist | |
hidden_input.val(""); | |
var li_data = settings.prePopulate || hidden_input.data("pre"); | |
if(settings.processPrePopulate && $.isFunction(settings.onResult)) { | |
li_data = settings.onResult.call(hidden_input, li_data); | |
} | |
if(li_data && li_data.length) { | |
$.each(li_data, function (index, value) { | |
insert_token(value); | |
checkTokenLimit(); | |
}); | |
} | |
// Initialization is done | |
if($.isFunction(settings.onReady)) { | |
settings.onReady.call(); | |
} | |
// | |
// Public functions | |
// | |
this.clear = function() { | |
token_list.children("li").each(function() { | |
if ($(this).children("input").length === 0) { | |
delete_token($(this)); | |
} | |
}); | |
} | |
this.add = function(item) { | |
add_token(item); | |
} | |
this.remove = function(item) { | |
token_list.children("li").each(function() { | |
if ($(this).children("input").length === 0) { | |
var currToken = $(this).data("tokeninput"); | |
var match = true; | |
for (var prop in item) { | |
if (item[prop] !== currToken[prop]) { | |
match = false; | |
break; | |
} | |
} | |
if (match) { | |
delete_token($(this)); | |
} | |
} | |
}); | |
} | |
this.getTokens = function() { | |
return saved_tokens; | |
} | |
// | |
// Private functions | |
// | |
function checkTokenLimit() { | |
if(settings.tokenLimit !== null && token_count >= settings.tokenLimit) { | |
input_box.hide(); | |
hide_dropdown(); | |
return; | |
} | |
} | |
function resize_input() { | |
if(input_val === (input_val = input_box.val())) {return;} | |
// Enter new content into resizer and resize input accordingly | |
var escaped = input_val.replace(/&/g, '&').replace(/\s/g,' ').replace(/</g, '<').replace(/>/g, '>'); | |
input_resizer.html(escaped); | |
input_box.width(input_resizer.width() + 30); | |
} | |
function is_printable_character(keycode) { | |
return ((keycode >= 48 && keycode <= 90) || // 0-1a-z | |
(keycode >= 96 && keycode <= 111) || // numpad 0-9 + - / * . | |
(keycode >= 186 && keycode <= 192) || // ; = , - . / ^ | |
(keycode >= 219 && keycode <= 222)); // ( \ ) ' | |
} | |
// Inner function to a token to the list | |
function insert_token(item) { | |
var this_token = settings.tokenFormatter(item); | |
this_token = $(this_token) | |
.addClass(settings.classes.token) | |
.insertBefore(input_token); | |
// The 'delete token' button | |
$("<span>" + settings.deleteText + "</span>") | |
.addClass(settings.classes.tokenDelete) | |
.appendTo(this_token) | |
.click(function () { | |
delete_token($(this).parent()); | |
hidden_input.change(); | |
return false; | |
}); | |
// Store data on the token | |
var token_data = item; | |
$.data(this_token.get(0), "tokeninput", item); | |
// Save this token for duplicate checking | |
saved_tokens = saved_tokens.slice(0,selected_token_index).concat([token_data]).concat(saved_tokens.slice(selected_token_index)); | |
selected_token_index++; | |
// Update the hidden input | |
update_hidden_input(saved_tokens, hidden_input); | |
token_count += 1; | |
// Check the token limit | |
if(settings.tokenLimit !== null && token_count >= settings.tokenLimit) { | |
input_box.hide(); | |
hide_dropdown(); | |
} | |
return this_token; | |
} | |
// Add a token to the token list based on user input | |
function add_token (item) { | |
var callback = settings.onAdd; | |
// See if the token already exists and select it if we don't want duplicates | |
if(token_count > 0 && settings.preventDuplicates) { | |
var found_existing_token = null; | |
token_list.children().each(function () { | |
var existing_token = $(this); | |
var existing_data = $.data(existing_token.get(0), "tokeninput"); | |
if(existing_data && (existing_data.id === item.id || item.wasCreated && existing_data.name === item.name)) { | |
found_existing_token = existing_token; | |
return false; | |
} | |
}); | |
if(found_existing_token) { | |
select_token(found_existing_token); | |
input_token.insertAfter(found_existing_token); | |
input_box.focus(); | |
return; | |
} | |
} | |
// For newly created tokens, restore the original name without the text saying it is a new token | |
if(settings.allowCreation && item.wasCreated) { | |
item.name = item.id; // restore the name without the token creation text | |
} | |
// Insert the new tokens | |
if(settings.tokenLimit == null || token_count < settings.tokenLimit) { | |
insert_token(item); | |
checkTokenLimit(); | |
} | |
// Clear input box | |
input_box.val(""); | |
// Don't show the help dropdown, they've got the idea | |
hide_dropdown(); | |
// Execute the onAdd callback if defined | |
if($.isFunction(callback)) { | |
callback.call(hidden_input,item); | |
} | |
} | |
// Select a token in the token list | |
function select_token (token) { | |
token.addClass(settings.classes.selectedToken); | |
selected_token = token.get(0); | |
// Hide input box | |
input_box.val(""); | |
// Hide dropdown if it is visible (eg if we clicked to select token) | |
hide_dropdown(); | |
} | |
// Deselect a token in the token list | |
function deselect_token (token, position) { | |
token.removeClass(settings.classes.selectedToken); | |
selected_token = null; | |
if(position === POSITION.BEFORE) { | |
input_token.insertBefore(token); | |
selected_token_index--; | |
} else if(position === POSITION.AFTER) { | |
input_token.insertAfter(token); | |
selected_token_index++; | |
} else { | |
input_token.appendTo(token_list); | |
selected_token_index = token_count; | |
} | |
// Show the input box and give it focus again | |
input_box.focus(); | |
} | |
// Toggle selection of a token in the token list | |
function toggle_select_token(token) { | |
var previous_selected_token = selected_token; | |
if(selected_token) { | |
deselect_token($(selected_token), POSITION.END); | |
} | |
if(previous_selected_token === token.get(0)) { | |
deselect_token(token, POSITION.END); | |
} else { | |
select_token(token); | |
} | |
} | |
// Delete a token from the token list | |
function delete_token (token) { | |
// Remove the id from the saved list | |
var token_data = $.data(token.get(0), "tokeninput"); | |
var callback = settings.onDelete; | |
var index = token.prevAll().length; | |
if(index > selected_token_index) index--; | |
// Delete the token | |
token.remove(); | |
selected_token = null; | |
// Show the input box and give it focus again | |
input_box.focus(); | |
// Remove this token from the saved list | |
saved_tokens = saved_tokens.slice(0,index).concat(saved_tokens.slice(index+1)); | |
if(index < selected_token_index) selected_token_index--; | |
// Update the hidden input | |
update_hidden_input(saved_tokens, hidden_input); | |
token_count -= 1; | |
if(settings.tokenLimit !== null) { | |
input_box | |
.show() | |
.val("") | |
.focus(); | |
} | |
// Execute the onDelete callback if defined | |
if($.isFunction(callback)) { | |
callback.call(hidden_input,token_data); | |
} | |
} | |
// Update the hidden input box value | |
function update_hidden_input(saved_tokens, hidden_input) { | |
var token_values = $.map(saved_tokens, function (el) { | |
if(typeof settings.tokenValue == 'function') | |
return settings.tokenValue.call(this, el); | |
return el[settings.tokenValue]; | |
}); | |
hidden_input.val(token_values.join(settings.tokenDelimiter)); | |
} | |
// Hide and clear the results dropdown | |
function hide_dropdown () { | |
dropdown.hide().empty(); | |
selected_dropdown_item = null; | |
} | |
function show_dropdown() { | |
dropdown | |
.css({ | |
position: "absolute", | |
top: $(token_list).offset().top + $(token_list).outerHeight(), | |
left: $(token_list).offset().left, | |
'z-index': 999 | |
}) | |
.show(); | |
} | |
function show_dropdown_searching () { | |
if(settings.searchingText) { | |
dropdown.html("<p>"+settings.searchingText+"</p>"); | |
show_dropdown(); | |
} | |
} | |
function show_dropdown_hint () { | |
if(settings.hintText) { | |
dropdown.html("<p>"+settings.hintText+"</p>"); | |
show_dropdown(); | |
} | |
} | |
// Highlight the query part of the search term | |
function highlight_term(value, term) { | |
return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<strong>$1</strong>"); | |
} | |
function find_value_and_highlight_term(template, value, term) { | |
return template.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + value + ")(?![^<>]*>)(?![^&;]+;)", "g"), highlight_term(value, term)); | |
} | |
// Populate the results dropdown with some results | |
function populate_dropdown (query, results) { | |
if(results && results.length) { | |
dropdown.empty(); | |
var dropdown_ul = $("<ul>") | |
.appendTo(dropdown) | |
.mouseover(function (event) { | |
select_dropdown_item($(event.target).closest("li")); | |
}) | |
.mousedown(function (event) { | |
add_token($(event.target).closest("li").data("tokeninput")); | |
hidden_input.change(); | |
return false; | |
}) | |
.hide(); | |
$.each(results, function(index, value) { | |
var this_li = settings.resultsFormatter(value); | |
this_li = find_value_and_highlight_term(this_li ,value[settings.propertyToSearch], query); | |
this_li = $(this_li).appendTo(dropdown_ul); | |
if(index % 2) { | |
this_li.addClass(settings.classes.dropdownItem); | |
} else { | |
this_li.addClass(settings.classes.dropdownItem2); | |
} | |
if(index === 0) { | |
select_dropdown_item(this_li); | |
} | |
$.data(this_li.get(0), "tokeninput", value); | |
}); | |
show_dropdown(); | |
if(settings.animateDropdown) { | |
dropdown_ul.slideDown("fast"); | |
} else { | |
dropdown_ul.show(); | |
} | |
} else { | |
if(settings.noResultsText) { | |
dropdown.html("<p>"+settings.noResultsText+"</p>"); | |
show_dropdown(); | |
} | |
} | |
} | |
// Highlight an item in the results dropdown | |
function select_dropdown_item (item) { | |
if(item) { | |
if(selected_dropdown_item) { | |
deselect_dropdown_item($(selected_dropdown_item)); | |
} | |
item.addClass(settings.classes.selectedDropdownItem); | |
selected_dropdown_item = item.get(0); | |
} | |
} | |
// Remove highlighting from an item in the results dropdown | |
function deselect_dropdown_item (item) { | |
item.removeClass(settings.classes.selectedDropdownItem); | |
selected_dropdown_item = null; | |
} | |
// Do a search and show the "searching" dropdown if the input is longer | |
// than settings.minChars | |
function do_search() { | |
var query = input_box.val(); | |
if(query && query.length) { | |
if(selected_token) { | |
deselect_token($(selected_token), POSITION.AFTER); | |
} | |
if(query.length >= settings.minChars) { | |
show_dropdown_searching(); | |
clearTimeout(timeout); | |
timeout = setTimeout(function(){ | |
run_search(query); | |
}, settings.searchDelay); | |
} else { | |
hide_dropdown(); | |
} | |
} | |
} | |
// Do the actual search | |
function run_search(query) { | |
var cache_key = query + computeURL(); | |
var cached_results = cache.get(cache_key); | |
if(cached_results) { | |
console.log(cached_results) | |
populate_dropdown(query, cached_results); | |
} else { | |
// Are we doing an ajax search or local data search? | |
if(settings.url) { | |
var url = computeURL(); | |
// Extract exisiting get params | |
var ajax_params = {}; | |
ajax_params.data = {}; | |
if(url.indexOf("?") > -1) { | |
var parts = url.split("?"); | |
ajax_params.url = parts[0]; | |
var param_array = parts[1].split("&"); | |
$.each(param_array, function (index, value) { | |
var kv = value.split("="); | |
ajax_params.data[kv[0]] = kv[1]; | |
}); | |
} else { | |
ajax_params.url = url; | |
} | |
// Prepare the request | |
ajax_params.data[settings.queryParam] = query; | |
ajax_params.type = settings.method; | |
ajax_params.dataType = settings.contentType; | |
if(settings.crossDomain) { | |
ajax_params.dataType = "jsonp"; | |
} | |
// Attach the success callback | |
ajax_params.success = function(results) { | |
if($.isFunction(settings.onResult)) { | |
results = settings.onResult.call(hidden_input, results); | |
} | |
if(settings.allowCreation) { | |
handleCreation(results); | |
} else { | |
cache.add(cache_key, settings.jsonContainer ? results[settings.jsonContainer] : results); | |
} | |
// only populate the dropdown if the results are associated with the active search query | |
if(input_box.val().toLowerCase() === query.toLowerCase()) { | |
populate_dropdown(query, settings.jsonContainer ? results[settings.jsonContainer] : results); | |
} | |
}; | |
// Make the request | |
$.ajax(ajax_params); | |
} else if(settings.local_data) { | |
// Do the search through local data | |
var results = $.grep(settings.local_data, function (row) { | |
return row[settings.propertyToSearch].toLowerCase().indexOf(query.toLowerCase()) > -1; | |
}); | |
if($.isFunction(settings.onResult)) { | |
results = settings.onResult.call(hidden_input, results); | |
} | |
if(settings.allowCreation) { | |
handleCreation(results); | |
} else { | |
cache.add(cache_key, results); | |
} | |
populate_dropdown(query, results); | |
} | |
} | |
} | |
function handleCreation(results) { | |
var displayedItem = {}; | |
displayedItem['name'] = input_box.val() + ' ' + settings.createTokenText; | |
displayedItem[settings.tokenValue] = input_box.val(); | |
displayedItem['wasCreated'] = true; | |
var creationExists = false; | |
// check if exists | |
for(x in results){ | |
if(results[x].name.toLowerCase() == input_box.val().toLowerCase()){ | |
creationExists = true; | |
} | |
} | |
// display created token in its position | |
if(!creationExists){ | |
if(settings.creationPosition == "top"){ | |
results.unshift(displayedItem); | |
} else { | |
results.push(displayedItem); | |
} | |
} | |
if($.isFunction(settings.onCreate)) { | |
var item = {}; | |
item['name'] = input_box.val(); | |
item[settings.tokenValue] = input_box.val(); | |
settings.onCreate.call(hidden_input, item); | |
} | |
} | |
// compute the dynamic URL | |
function computeURL() { | |
var url = settings.url; | |
if(typeof settings.url == 'function') { | |
url = settings.url.call(); | |
} | |
return url; | |
} | |
}; | |
// Really basic cache for the results | |
$.TokenList.Cache = function (options) { | |
var settings = $.extend({ | |
max_size: 500 | |
}, options); | |
var data = {}; | |
var size = 0; | |
var flush = function () { | |
data = {}; | |
size = 0; | |
}; | |
this.add = function (query, results) { | |
if(size > settings.max_size) { | |
flush(); | |
} | |
if(!data[query]) { | |
size += 1; | |
} | |
data[query] = results; | |
}; | |
this.get = function (query) { | |
return data[query]; | |
}; | |
}; | |
}(jQuery)); |
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