Created
April 5, 2013 05:29
-
-
Save awesome/5316861 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
/* | |
* jQuery File Upload Plugin 5.28.8 | |
* https://github.com/blueimp/jQuery-File-Upload | |
* | |
* Copyright 2010, Sebastian Tschan | |
* https://blueimp.net | |
* | |
* Licensed under the MIT license: | |
* http://www.opensource.org/licenses/MIT | |
*/ | |
/*jslint nomen: true, unparam: true, regexp: true */ | |
/*global define, window, document, File, Blob, FormData, location */ | |
(function (factory) { | |
'use strict'; | |
if (typeof define === 'function' && define.amd) { | |
// Register as an anonymous AMD module: | |
define([ | |
'jquery', | |
'jquery.ui.widget' | |
], factory); | |
} else { | |
// Browser globals: | |
factory(window.jQuery); | |
} | |
}(function ($) { | |
'use strict'; | |
// The FileReader API is not actually used, but works as feature detection, | |
// as e.g. Safari supports XHR file uploads via the FormData API, | |
// but not non-multipart XHR file uploads: | |
$.support.xhrFileUpload = !!(window.XMLHttpRequestUpload && window.FileReader); | |
$.support.xhrFormDataFileUpload = !!window.FormData; | |
// The fileupload widget listens for change events on file input fields defined | |
// via fileInput setting and paste or drop events of the given dropZone. | |
// In addition to the default jQuery Widget methods, the fileupload widget | |
// exposes the "add" and "send" methods, to add or directly send files using | |
// the fileupload API. | |
// By default, files added via file input selection, paste, drag & drop or | |
// "add" method are uploaded immediately, but it is possible to override | |
// the "add" callback option to queue file uploads. | |
$.widget('blueimp.fileupload', { | |
options: { | |
// The drop target element(s), by the default the complete document. | |
// Set to null to disable drag & drop support: | |
dropZone: $(document), | |
// The paste target element(s), by the default the complete document. | |
// Set to null to disable paste support: | |
pasteZone: $(document), | |
// The file input field(s), that are listened to for change events. | |
// If undefined, it is set to the file input fields inside | |
// of the widget element on plugin initialization. | |
// Set to null to disable the change listener. | |
fileInput: undefined, | |
// By default, the file input field is replaced with a clone after | |
// each input field change event. This is required for iframe transport | |
// queues and allows change events to be fired for the same file | |
// selection, but can be disabled by setting the following option to false: | |
replaceFileInput: true, | |
// The parameter name for the file form data (the request argument name). | |
// If undefined or empty, the name property of the file input field is | |
// used, or "files[]" if the file input name property is also empty, | |
// can be a string or an array of strings: | |
paramName: undefined, | |
// By default, each file of a selection is uploaded using an individual | |
// request for XHR type uploads. Set to false to upload file | |
// selections in one request each: | |
singleFileUploads: true, | |
// To limit the number of files uploaded with one XHR request, | |
// set the following option to an integer greater than 0: | |
limitMultiFileUploads: undefined, | |
// Set the following option to true to issue all file upload requests | |
// in a sequential order: | |
sequentialUploads: false, | |
// To limit the number of concurrent uploads, | |
// set the following option to an integer greater than 0: | |
limitConcurrentUploads: undefined, | |
// Set the following option to true to force iframe transport uploads: | |
forceIframeTransport: false, | |
// Set the following option to the location of a redirect url on the | |
// origin server, for cross-domain iframe transport uploads: | |
redirect: undefined, | |
// The parameter name for the redirect url, sent as part of the form | |
// data and set to 'redirect' if this option is empty: | |
redirectParamName: undefined, | |
// Set the following option to the location of a postMessage window, | |
// to enable postMessage transport uploads: | |
postMessage: undefined, | |
// By default, XHR file uploads are sent as multipart/form-data. | |
// The iframe transport is always using multipart/form-data. | |
// Set to false to enable non-multipart XHR uploads: | |
multipart: true, | |
// To upload large files in smaller chunks, set the following option | |
// to a preferred maximum chunk size. If set to 0, null or undefined, | |
// or the browser does not support the required Blob API, files will | |
// be uploaded as a whole. | |
maxChunkSize: undefined, | |
// When a non-multipart upload or a chunked multipart upload has been | |
// aborted, this option can be used to resume the upload by setting | |
// it to the size of the already uploaded bytes. This option is most | |
// useful when modifying the options object inside of the "add" or | |
// "send" callbacks, as the options are cloned for each file upload. | |
uploadedBytes: undefined, | |
// By default, failed (abort or error) file uploads are removed from the | |
// global progress calculation. Set the following option to false to | |
// prevent recalculating the global progress data: | |
recalculateProgress: true, | |
// Interval in milliseconds to calculate and trigger progress events: | |
progressInterval: 100, | |
// Interval in milliseconds to calculate progress bitrate: | |
bitrateInterval: 500, | |
// By default, uploads are started automatically when adding files: | |
autoUpload: true, | |
// Additional form data to be sent along with the file uploads can be set | |
// using this option, which accepts an array of objects with name and | |
// value properties, a function returning such an array, a FormData | |
// object (for XHR file uploads), or a simple object. | |
// The form of the first fileInput is given as parameter to the function: | |
formData: function (form) { | |
return form.serializeArray(); | |
}, | |
// The add callback is invoked as soon as files are added to the fileupload | |
// widget (via file input selection, drag & drop, paste or add API call). | |
// If the singleFileUploads option is enabled, this callback will be | |
// called once for each file in the selection for XHR file uplaods, else | |
// once for each file selection. | |
// The upload starts when the submit method is invoked on the data parameter. | |
// The data object contains a files property holding the added files | |
// and allows to override plugin options as well as define ajax settings. | |
// Listeners for this callback can also be bound the following way: | |
// .bind('fileuploadadd', func); | |
// data.submit() returns a Promise object and allows to attach additional | |
// handlers using jQuery's Deferred callbacks: | |
// data.submit().done(func).fail(func).always(func); | |
add: function (e, data) { | |
if (data.autoUpload || (data.autoUpload !== false && | |
($(this).data('blueimp-fileupload') || | |
$(this).data('fileupload')).options.autoUpload)) { | |
data.submit(); | |
} | |
}, | |
// Other callbacks: | |
// Callback for the submit event of each file upload: | |
// submit: function (e, data) {}, // .bind('fileuploadsubmit', func); | |
// Callback for the start of each file upload request: | |
// send: function (e, data) {}, // .bind('fileuploadsend', func); | |
// Callback for successful uploads: | |
// done: function (e, data) {}, // .bind('fileuploaddone', func); | |
// Callback for failed (abort or error) uploads: | |
// fail: function (e, data) {}, // .bind('fileuploadfail', func); | |
// Callback for completed (success, abort or error) requests: | |
// always: function (e, data) {}, // .bind('fileuploadalways', func); | |
// Callback for upload progress events: | |
// progress: function (e, data) {}, // .bind('fileuploadprogress', func); | |
// Callback for global upload progress events: | |
// progressall: function (e, data) {}, // .bind('fileuploadprogressall', func); | |
// Callback for uploads start, equivalent to the global ajaxStart event: | |
// start: function (e) {}, // .bind('fileuploadstart', func); | |
// Callback for uploads stop, equivalent to the global ajaxStop event: | |
// stop: function (e) {}, // .bind('fileuploadstop', func); | |
// Callback for change events of the fileInput(s): | |
// change: function (e, data) {}, // .bind('fileuploadchange', func); | |
// Callback for paste events to the pasteZone(s): | |
// paste: function (e, data) {}, // .bind('fileuploadpaste', func); | |
// Callback for drop events of the dropZone(s): | |
// drop: function (e, data) {}, // .bind('fileuploaddrop', func); | |
// Callback for dragover events of the dropZone(s): | |
// dragover: function (e) {}, // .bind('fileuploaddragover', func); | |
// Callback for the start of each chunk upload request: | |
// chunksend: function (e, data) {}, // .bind('fileuploadchunksend', func); | |
// Callback for successful chunk uploads: | |
// chunkdone: function (e, data) {}, // .bind('fileuploadchunkdone', func); | |
// Callback for failed (abort or error) chunk uploads: | |
// chunkfail: function (e, data) {}, // .bind('fileuploadchunkfail', func); | |
// Callback for completed (success, abort or error) chunk upload requests: | |
// chunkalways: function (e, data) {}, // .bind('fileuploadchunkalways', func); | |
// The plugin options are used as settings object for the ajax calls. | |
// The following are jQuery ajax settings required for the file uploads: | |
processData: false, | |
contentType: false, | |
cache: false | |
}, | |
// A list of options that require a refresh after assigning a new value: | |
_refreshOptionsList: [ | |
'fileInput', | |
'dropZone', | |
'pasteZone', | |
'multipart', | |
'forceIframeTransport' | |
], | |
_BitrateTimer: function () { | |
this.timestamp = ((Date.now) ? Date.now() : (new Date()).getTime()); | |
this.loaded = 0; | |
this.bitrate = 0; | |
this.getBitrate = function (now, loaded, interval) { | |
var timeDiff = now - this.timestamp; | |
if (!this.bitrate || !interval || timeDiff > interval) { | |
this.bitrate = (loaded - this.loaded) * (1000 / timeDiff) * 8; | |
this.loaded = loaded; | |
this.timestamp = now; | |
} | |
return this.bitrate; | |
}; | |
}, | |
_isXHRUpload: function (options) { | |
return !options.forceIframeTransport && | |
((!options.multipart && $.support.xhrFileUpload) || | |
$.support.xhrFormDataFileUpload); | |
}, | |
_getFormData: function (options) { | |
var formData; | |
if (typeof options.formData === 'function') { | |
return options.formData(options.form); | |
} | |
if ($.isArray(options.formData)) { | |
return options.formData; | |
} | |
if ($.type(options.formData) === 'object') { | |
formData = []; | |
$.each(options.formData, function (name, value) { | |
formData.push({name: name, value: value}); | |
}); | |
return formData; | |
} | |
return []; | |
}, | |
_getTotal: function (files) { | |
var total = 0; | |
$.each(files, function (index, file) { | |
total += file.size || 1; | |
}); | |
return total; | |
}, | |
_initProgressObject: function (obj) { | |
var progress = { | |
loaded: 0, | |
total: 0, | |
bitrate: 0 | |
}; | |
if (obj._progress) { | |
$.extend(obj._progress, progress); | |
} else { | |
obj._progress = progress; | |
} | |
}, | |
_initResponseObject: function (obj) { | |
var prop; | |
if (obj._response) { | |
for (prop in obj._response) { | |
if (obj._response.hasOwnProperty(prop)) { | |
delete obj._response[prop]; | |
} | |
} | |
} else { | |
obj._response = {}; | |
} | |
}, | |
_onProgress: function (e, data) { | |
if (e.lengthComputable) { | |
var now = ((Date.now) ? Date.now() : (new Date()).getTime()), | |
loaded; | |
if (data._time && data.progressInterval && | |
(now - data._time < data.progressInterval) && | |
e.loaded !== e.total) { | |
return; | |
} | |
data._time = now; | |
loaded = Math.floor( | |
e.loaded / e.total * (data.chunkSize || data._progress.total) | |
) + (data.uploadedBytes || 0); | |
// Add the difference from the previously loaded state | |
// to the global loaded counter: | |
this._progress.loaded += (loaded - data._progress.loaded); | |
this._progress.bitrate = this._bitrateTimer.getBitrate( | |
now, | |
this._progress.loaded, | |
data.bitrateInterval | |
); | |
data._progress.loaded = data.loaded = loaded; | |
data._progress.bitrate = data.bitrate = data._bitrateTimer.getBitrate( | |
now, | |
loaded, | |
data.bitrateInterval | |
); | |
// Trigger a custom progress event with a total data property set | |
// to the file size(s) of the current upload and a loaded data | |
// property calculated accordingly: | |
this._trigger('progress', e, data); | |
// Trigger a global progress event for all current file uploads, | |
// including ajax calls queued for sequential file uploads: | |
this._trigger('progressall', e, this._progress); | |
} | |
}, | |
_initProgressListener: function (options) { | |
var that = this, | |
xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr(); | |
// Accesss to the native XHR object is required to add event listeners | |
// for the upload progress event: | |
if (xhr.upload) { | |
$(xhr.upload).bind('progress', function (e) { | |
var oe = e.originalEvent; | |
// Make sure the progress event properties get copied over: | |
e.lengthComputable = oe.lengthComputable; | |
e.loaded = oe.loaded; | |
e.total = oe.total; | |
that._onProgress(e, options); | |
}); | |
options.xhr = function () { | |
return xhr; | |
}; | |
} | |
}, | |
_isInstanceOf: function (type, obj) { | |
// Cross-frame instanceof check | |
return Object.prototype.toString.call(obj) === '[object ' + type + ']'; | |
}, | |
_initXHRData: function (options) { | |
var that = this, | |
formData, | |
file = options.files[0], | |
// Ignore non-multipart setting if not supported: | |
multipart = options.multipart || !$.support.xhrFileUpload, | |
paramName = options.paramName[0]; | |
options.headers = options.headers || {}; | |
if (options.contentRange) { | |
options.headers['Content-Range'] = options.contentRange; | |
} | |
if (!multipart) { | |
options.headers['Content-Disposition'] = 'attachment; filename="' + | |
encodeURI(file.name) + '"'; | |
options.contentType = file.type; | |
options.data = options.blob || file; | |
} else if ($.support.xhrFormDataFileUpload) { | |
if (options.postMessage) { | |
// window.postMessage does not allow sending FormData | |
// objects, so we just add the File/Blob objects to | |
// the formData array and let the postMessage window | |
// create the FormData object out of this array: | |
formData = this._getFormData(options); | |
if (options.blob) { | |
formData.push({ | |
name: paramName, | |
value: options.blob | |
}); | |
} else { | |
$.each(options.files, function (index, file) { | |
formData.push({ | |
name: options.paramName[index] || paramName, | |
value: file | |
}); | |
}); | |
} | |
} else { | |
if (that._isInstanceOf('FormData', options.formData)) { | |
formData = options.formData; | |
} else { | |
formData = new FormData(); | |
$.each(this._getFormData(options), function (index, field) { | |
formData.append(field.name, field.value); | |
}); | |
} | |
if (options.blob) { | |
options.headers['Content-Disposition'] = 'attachment; filename="' + | |
encodeURI(file.name) + '"'; | |
formData.append(paramName, options.blob, file.name); | |
} else { | |
$.each(options.files, function (index, file) { | |
// This check allows the tests to run with | |
// dummy objects: | |
if (that._isInstanceOf('File', file) || | |
that._isInstanceOf('Blob', file)) { | |
formData.append( | |
options.paramName[index] || paramName, | |
file, | |
file.name | |
); | |
} | |
}); | |
} | |
} | |
options.data = formData; | |
} | |
// Blob reference is not needed anymore, free memory: | |
options.blob = null; | |
}, | |
_initIframeSettings: function (options) { | |
// Setting the dataType to iframe enables the iframe transport: | |
options.dataType = 'iframe ' + (options.dataType || ''); | |
// The iframe transport accepts a serialized array as form data: | |
options.formData = this._getFormData(options); | |
// Add redirect url to form data on cross-domain uploads: | |
if (options.redirect && $('<a></a>').prop('href', options.url) | |
.prop('host') !== location.host) { | |
options.formData.push({ | |
name: options.redirectParamName || 'redirect', | |
value: options.redirect | |
}); | |
} | |
}, | |
_initDataSettings: function (options) { | |
if (this._isXHRUpload(options)) { | |
if (!this._chunkedUpload(options, true)) { | |
if (!options.data) { | |
this._initXHRData(options); | |
} | |
this._initProgressListener(options); | |
} | |
if (options.postMessage) { | |
// Setting the dataType to postmessage enables the | |
// postMessage transport: | |
options.dataType = 'postmessage ' + (options.dataType || ''); | |
} | |
} else { | |
this._initIframeSettings(options); | |
} | |
}, | |
_getParamName: function (options) { | |
var fileInput = $(options.fileInput), | |
paramName = options.paramName; | |
if (!paramName) { | |
paramName = []; | |
fileInput.each(function () { | |
var input = $(this), | |
name = input.prop('name') || 'files[]', | |
i = (input.prop('files') || [1]).length; | |
while (i) { | |
paramName.push(name); | |
i -= 1; | |
} | |
}); | |
if (!paramName.length) { | |
paramName = [fileInput.prop('name') || 'files[]']; | |
} | |
} else if (!$.isArray(paramName)) { | |
paramName = [paramName]; | |
} | |
return paramName; | |
}, | |
_initFormSettings: function (options) { | |
// Retrieve missing options from the input field and the | |
// associated form, if available: | |
if (!options.form || !options.form.length) { | |
options.form = $(options.fileInput.prop('form')); | |
// If the given file input doesn't have an associated form, | |
// use the default widget file input's form: | |
if (!options.form.length) { | |
options.form = $(this.options.fileInput.prop('form')); | |
} | |
} | |
options.paramName = this._getParamName(options); | |
if (!options.url) { | |
options.url = options.form.prop('action') || location.href; | |
} | |
// The HTTP request method must be "POST" or "PUT": | |
options.type = (options.type || options.form.prop('method') || '') | |
.toUpperCase(); | |
if (options.type !== 'POST' && options.type !== 'PUT' && | |
options.type !== 'PATCH') { | |
options.type = 'POST'; | |
} | |
if (!options.formAcceptCharset) { | |
options.formAcceptCharset = options.form.attr('accept-charset'); | |
} | |
}, | |
_getAJAXSettings: function (data) { | |
var options = $.extend({}, this.options, data); | |
this._initFormSettings(options); | |
this._initDataSettings(options); | |
return options; | |
}, | |
// jQuery 1.6 doesn't provide .state(), | |
// while jQuery 1.8+ removed .isRejected() and .isResolved(): | |
_getDeferredState: function (deferred) { | |
if (deferred.state) { | |
return deferred.state(); | |
} | |
if (deferred.isResolved()) { | |
return 'resolved'; | |
} | |
if (deferred.isRejected()) { | |
return 'rejected'; | |
} | |
return 'pending'; | |
}, | |
// Maps jqXHR callbacks to the equivalent | |
// methods of the given Promise object: | |
_enhancePromise: function (promise) { | |
promise.success = promise.done; | |
promise.error = promise.fail; | |
promise.complete = promise.always; | |
return promise; | |
}, | |
// Creates and returns a Promise object enhanced with | |
// the jqXHR methods abort, success, error and complete: | |
_getXHRPromise: function (resolveOrReject, context, args) { | |
var dfd = $.Deferred(), | |
promise = dfd.promise(); | |
context = context || this.options.context || promise; | |
if (resolveOrReject === true) { | |
dfd.resolveWith(context, args); | |
} else if (resolveOrReject === false) { | |
dfd.rejectWith(context, args); | |
} | |
promise.abort = dfd.promise; | |
return this._enhancePromise(promise); | |
}, | |
// Adds convenience methods to the callback arguments: | |
_addConvenienceMethods: function (e, data) { | |
var that = this; | |
data.submit = function () { | |
if (this.state() !== 'pending') { | |
data.jqXHR = this.jqXHR = | |
(that._trigger('submit', e, this) !== false) && | |
that._onSend(e, this); | |
} | |
return this.jqXHR || that._getXHRPromise(); | |
}; | |
data.abort = function () { | |
if (this.jqXHR) { | |
return this.jqXHR.abort(); | |
} | |
return that._getXHRPromise(); | |
}; | |
data.state = function () { | |
if (this.jqXHR) { | |
return that._getDeferredState(this.jqXHR); | |
} | |
}; | |
data.progress = function () { | |
return this._progress; | |
}; | |
data.response = function () { | |
return this._response; | |
}; | |
}, | |
// Parses the Range header from the server response | |
// and returns the uploaded bytes: | |
_getUploadedBytes: function (jqXHR) { | |
var range = jqXHR.getResponseHeader('Range'), | |
parts = range && range.split('-'), | |
upperBytesPos = parts && parts.length > 1 && | |
parseInt(parts[1], 10); | |
return upperBytesPos && upperBytesPos + 1; | |
}, | |
// Uploads a file in multiple, sequential requests | |
// by splitting the file up in multiple blob chunks. | |
// If the second parameter is true, only tests if the file | |
// should be uploaded in chunks, but does not invoke any | |
// upload requests: | |
_chunkedUpload: function (options, testOnly) { | |
var that = this, | |
file = options.files[0], | |
fs = file.size, | |
ub = options.uploadedBytes = options.uploadedBytes || 0, | |
mcs = options.maxChunkSize || fs, | |
slice = file.slice || file.webkitSlice || file.mozSlice, | |
dfd = $.Deferred(), | |
promise = dfd.promise(), | |
jqXHR, | |
upload; | |
if (!(this._isXHRUpload(options) && slice && (ub || mcs < fs)) || | |
options.data) { | |
return false; | |
} | |
if (testOnly) { | |
return true; | |
} | |
if (ub >= fs) { | |
file.error = 'Uploaded bytes exceed file size'; | |
return this._getXHRPromise( | |
false, | |
options.context, | |
[null, 'error', file.error] | |
); | |
} | |
// The chunk upload method: | |
upload = function () { | |
// Clone the options object for each chunk upload: | |
var o = $.extend({}, options), | |
currentLoaded = o._progress.loaded; | |
o.blob = slice.call( | |
file, | |
ub, | |
ub + mcs, | |
file.type | |
); | |
// Store the current chunk size, as the blob itself | |
// will be dereferenced after data processing: | |
o.chunkSize = o.blob.size; | |
// Expose the chunk bytes position range: | |
o.contentRange = 'bytes ' + ub + '-' + | |
(ub + o.chunkSize - 1) + '/' + fs; | |
// Process the upload data (the blob and potential form data): | |
that._initXHRData(o); | |
// Add progress listeners for this chunk upload: | |
that._initProgressListener(o); | |
jqXHR = ((that._trigger('chunksend', null, o) !== false && $.ajax(o)) || | |
that._getXHRPromise(false, o.context)) | |
.done(function (result, textStatus, jqXHR) { | |
ub = that._getUploadedBytes(jqXHR) || | |
(ub + o.chunkSize); | |
// Create a progress event if no final progress event | |
// with loaded equaling total has been triggered | |
// for this chunk: | |
if (o._progress.loaded === currentLoaded) { | |
that._onProgress($.Event('progress', { | |
lengthComputable: true, | |
loaded: ub - o.uploadedBytes, | |
total: ub - o.uploadedBytes | |
}), o); | |
} | |
options.uploadedBytes = o.uploadedBytes = ub; | |
o.result = result; | |
o.textStatus = textStatus; | |
o.jqXHR = jqXHR; | |
that._trigger('chunkdone', null, o); | |
that._trigger('chunkalways', null, o); | |
if (ub < fs) { | |
// File upload not yet complete, | |
// continue with the next chunk: | |
upload(); | |
} else { | |
dfd.resolveWith( | |
o.context, | |
[result, textStatus, jqXHR] | |
); | |
} | |
}) | |
.fail(function (jqXHR, textStatus, errorThrown) { | |
o.jqXHR = jqXHR; | |
o.textStatus = textStatus; | |
o.errorThrown = errorThrown; | |
that._trigger('chunkfail', null, o); | |
that._trigger('chunkalways', null, o); | |
dfd.rejectWith( | |
o.context, | |
[jqXHR, textStatus, errorThrown] | |
); | |
}); | |
}; | |
this._enhancePromise(promise); | |
promise.abort = function () { | |
return jqXHR.abort(); | |
}; | |
upload(); | |
return promise; | |
}, | |
_beforeSend: function (e, data) { | |
if (this._active === 0) { | |
// the start callback is triggered when an upload starts | |
// and no other uploads are currently running, | |
// equivalent to the global ajaxStart event: | |
this._trigger('start'); | |
// Set timer for global bitrate progress calculation: | |
this._bitrateTimer = new this._BitrateTimer(); | |
// Reset the global progress values: | |
this._progress.loaded = this._progress.total = 0; | |
this._progress.bitrate = 0; | |
} | |
// Make sure the container objects for the .response() and | |
// .progress() methods on the data object are available | |
// and reset to their initial state: | |
this._initResponseObject(data); | |
this._initProgressObject(data); | |
data._progress.loaded = data.loaded = data.uploadedBytes || 0; | |
data._progress.total = data.total = this._getTotal(data.files) || 1; | |
data._progress.bitrate = data.bitrate = 0; | |
this._active += 1; | |
// Initialize the global progress values: | |
this._progress.loaded += data.loaded; | |
this._progress.total += data.total; | |
}, | |
_onDone: function (result, textStatus, jqXHR, options) { | |
var total = options._progress.total, | |
response = options._response; | |
if (options._progress.loaded < total) { | |
// Create a progress event if no final progress event | |
// with loaded equaling total has been triggered: | |
this._onProgress($.Event('progress', { | |
lengthComputable: true, | |
loaded: total, | |
total: total | |
}), options); | |
} | |
response.result = options.result = result; | |
response.textStatus = options.textStatus = textStatus; | |
response.jqXHR = options.jqXHR = jqXHR; | |
this._trigger('done', null, options); | |
}, | |
_onFail: function (jqXHR, textStatus, errorThrown, options) { | |
var response = options._response; | |
if (options.recalculateProgress) { | |
// Remove the failed (error or abort) file upload from | |
// the global progress calculation: | |
this._progress.loaded -= options._progress.loaded; | |
this._progress.total -= options._progress.total; | |
} | |
response.jqXHR = options.jqXHR = jqXHR; | |
response.textStatus = options.textStatus = textStatus; | |
response.errorThrown = options.errorThrown = errorThrown; | |
this._trigger('fail', null, options); | |
}, | |
_onAlways: function (jqXHRorResult, textStatus, jqXHRorError, options) { | |
// jqXHRorResult, textStatus and jqXHRorError are added to the | |
// options object via done and fail callbacks | |
this._trigger('always', null, options); | |
}, | |
_onSend: function (e, data) { | |
if (!data.submit) { | |
this._addConvenienceMethods(e, data); | |
} | |
var that = this, | |
jqXHR, | |
aborted, | |
slot, | |
pipe, | |
options = that._getAJAXSettings(data), | |
send = function () { | |
that._sending += 1; | |
// Set timer for bitrate progress calculation: | |
options._bitrateTimer = new that._BitrateTimer(); | |
jqXHR = jqXHR || ( | |
((aborted || that._trigger('send', e, options) === false) && | |
that._getXHRPromise(false, options.context, aborted)) || | |
that._chunkedUpload(options) || $.ajax(options) | |
).done(function (result, textStatus, jqXHR) { | |
that._onDone(result, textStatus, jqXHR, options); | |
}).fail(function (jqXHR, textStatus, errorThrown) { | |
that._onFail(jqXHR, textStatus, errorThrown, options); | |
}).always(function (jqXHRorResult, textStatus, jqXHRorError) { | |
that._onAlways( | |
jqXHRorResult, | |
textStatus, | |
jqXHRorError, | |
options | |
); | |
that._sending -= 1; | |
that._active -= 1; | |
if (options.limitConcurrentUploads && | |
options.limitConcurrentUploads > that._sending) { | |
// Start the next queued upload, | |
// that has not been aborted: | |
var nextSlot = that._slots.shift(); | |
while (nextSlot) { | |
if (that._getDeferredState(nextSlot) === 'pending') { | |
nextSlot.resolve(); | |
break; | |
} | |
nextSlot = that._slots.shift(); | |
} | |
} | |
if (that._active === 0) { | |
// The stop callback is triggered when all uploads have | |
// been completed, equivalent to the global ajaxStop event: | |
that._trigger('stop'); | |
} | |
}); | |
return jqXHR; | |
}; | |
this._beforeSend(e, options); | |
if (this.options.sequentialUploads || | |
(this.options.limitConcurrentUploads && | |
this.options.limitConcurrentUploads <= this._sending)) { | |
if (this.options.limitConcurrentUploads > 1) { | |
slot = $.Deferred(); | |
this._slots.push(slot); | |
pipe = slot.pipe(send); | |
} else { | |
pipe = (this._sequence = this._sequence.pipe(send, send)); | |
} | |
// Return the piped Promise object, enhanced with an abort method, | |
// which is delegated to the jqXHR object of the current upload, | |
// and jqXHR callbacks mapped to the equivalent Promise methods: | |
pipe.abort = function () { | |
aborted = [undefined, 'abort', 'abort']; | |
if (!jqXHR) { | |
if (slot) { | |
slot.rejectWith(options.context, aborted); | |
} | |
return send(); | |
} | |
return jqXHR.abort(); | |
}; | |
return this._enhancePromise(pipe); | |
} | |
return send(); | |
}, | |
_onAdd: function (e, data) { | |
var that = this, | |
result = true, | |
options = $.extend({}, this.options, data), | |
limit = options.limitMultiFileUploads, | |
paramName = this._getParamName(options), | |
paramNameSet, | |
paramNameSlice, | |
fileSet, | |
i; | |
if (!(options.singleFileUploads || limit) || | |
!this._isXHRUpload(options)) { | |
fileSet = [data.files]; | |
paramNameSet = [paramName]; | |
} else if (!options.singleFileUploads && limit) { | |
fileSet = []; | |
paramNameSet = []; | |
for (i = 0; i < data.files.length; i += limit) { | |
fileSet.push(data.files.slice(i, i + limit)); | |
paramNameSlice = paramName.slice(i, i + limit); | |
if (!paramNameSlice.length) { | |
paramNameSlice = paramName; | |
} | |
paramNameSet.push(paramNameSlice); | |
} | |
} else { | |
paramNameSet = paramName; | |
} | |
data.originalFiles = data.files; | |
$.each(fileSet || data.files, function (index, element) { | |
var newData = $.extend({}, data); | |
newData.files = fileSet ? element : [element]; | |
newData.paramName = paramNameSet[index]; | |
that._initResponseObject(newData); | |
that._initProgressObject(newData); | |
that._addConvenienceMethods(e, newData); | |
result = that._trigger('add', e, newData); | |
return result; | |
}); | |
return result; | |
}, | |
_replaceFileInput: function (input) { | |
var inputClone = input.clone(true); | |
$('<form></form>').append(inputClone)[0].reset(); | |
// Detaching allows to insert the fileInput on another form | |
// without loosing the file input value: | |
input.after(inputClone).detach(); | |
// Avoid memory leaks with the detached file input: | |
$.cleanData(input.unbind('remove')); | |
// Replace the original file input element in the fileInput | |
// elements set with the clone, which has been copied including | |
// event handlers: | |
this.options.fileInput = this.options.fileInput.map(function (i, el) { | |
if (el === input[0]) { | |
return inputClone[0]; | |
} | |
return el; | |
}); | |
// If the widget has been initialized on the file input itself, | |
// override this.element with the file input clone: | |
if (input[0] === this.element[0]) { | |
this.element = inputClone; | |
} | |
}, | |
_handleFileTreeEntry: function (entry, path) { | |
var that = this, | |
dfd = $.Deferred(), | |
errorHandler = function (e) { | |
if (e && !e.entry) { | |
e.entry = entry; | |
} | |
// Since $.when returns immediately if one | |
// Deferred is rejected, we use resolve instead. | |
// This allows valid files and invalid items | |
// to be returned together in one set: | |
dfd.resolve([e]); | |
}, | |
dirReader; | |
path = path || ''; | |
if (entry.isFile) { | |
if (entry._file) { | |
// Workaround for Chrome bug #149735 | |
entry._file.relativePath = path; | |
dfd.resolve(entry._file); | |
} else { | |
entry.file(function (file) { | |
file.relativePath = path; | |
dfd.resolve(file); | |
}, errorHandler); | |
} | |
} else if (entry.isDirectory) { | |
dirReader = entry.createReader(); | |
dirReader.readEntries(function (entries) { | |
that._handleFileTreeEntries( | |
entries, | |
path + entry.name + '/' | |
).done(function (files) { | |
dfd.resolve(files); | |
}).fail(errorHandler); | |
}, errorHandler); | |
} else { | |
// Return an empy list for file system items | |
// other than files or directories: | |
dfd.resolve([]); | |
} | |
return dfd.promise(); | |
}, | |
_handleFileTreeEntries: function (entries, path) { | |
var that = this; | |
return $.when.apply( | |
$, | |
$.map(entries, function (entry) { | |
return that._handleFileTreeEntry(entry, path); | |
}) | |
).pipe(function () { | |
return Array.prototype.concat.apply( | |
[], | |
arguments | |
); | |
}); | |
}, | |
_getDroppedFiles: function (dataTransfer) { | |
dataTransfer = dataTransfer || {}; | |
var items = dataTransfer.items; | |
if (items && items.length && (items[0].webkitGetAsEntry || | |
items[0].getAsEntry)) { | |
return this._handleFileTreeEntries( | |
$.map(items, function (item) { | |
var entry; | |
if (item.webkitGetAsEntry) { | |
entry = item.webkitGetAsEntry(); | |
if (entry) { | |
// Workaround for Chrome bug #149735: | |
entry._file = item.getAsFile(); | |
} | |
return entry; | |
} | |
return item.getAsEntry(); | |
}) | |
); | |
} | |
return $.Deferred().resolve( | |
$.makeArray(dataTransfer.files) | |
).promise(); | |
}, | |
_getSingleFileInputFiles: function (fileInput) { | |
fileInput = $(fileInput); | |
var entries = fileInput.prop('webkitEntries') || | |
fileInput.prop('entries'), | |
files, | |
value; | |
if (entries && entries.length) { | |
return this._handleFileTreeEntries(entries); | |
} | |
files = $.makeArray(fileInput.prop('files')); | |
if (!files.length) { | |
value = fileInput.prop('value'); | |
if (!value) { | |
return $.Deferred().resolve([]).promise(); | |
} | |
// If the files property is not available, the browser does not | |
// support the File API and we add a pseudo File object with | |
// the input value as name with path information removed: | |
files = [{name: value.replace(/^.*\\/, '')}]; | |
} else if (files[0].name === undefined && files[0].fileName) { | |
// File normalization for Safari 4 and Firefox 3: | |
$.each(files, function (index, file) { | |
file.name = file.fileName; | |
file.size = file.fileSize; | |
}); | |
} | |
return $.Deferred().resolve(files).promise(); | |
}, | |
_getFileInputFiles: function (fileInput) { | |
if (!(fileInput instanceof $) || fileInput.length === 1) { | |
return this._getSingleFileInputFiles(fileInput); | |
} | |
return $.when.apply( | |
$, | |
$.map(fileInput, this._getSingleFileInputFiles) | |
).pipe(function () { | |
return Array.prototype.concat.apply( | |
[], | |
arguments | |
); | |
}); | |
}, | |
_onChange: function (e) { | |
var that = this, | |
data = { | |
fileInput: $(e.target), | |
form: $(e.target.form) | |
}; | |
this._getFileInputFiles(data.fileInput).always(function (files) { | |
data.files = files; | |
if (that.options.replaceFileInput) { | |
that._replaceFileInput(data.fileInput); | |
} | |
if (that._trigger('change', e, data) !== false) { | |
that._onAdd(e, data); | |
} | |
}); | |
}, | |
_onPaste: function (e) { | |
var items = e.originalEvent && e.originalEvent.clipboardData && | |
e.originalEvent.clipboardData.items, | |
data = {files: []}; | |
if (items && items.length) { | |
$.each(items, function (index, item) { | |
var file = item.getAsFile && item.getAsFile(); | |
if (file) { | |
data.files.push(file); | |
} | |
}); | |
if (this._trigger('paste', e, data) === false || | |
this._onAdd(e, data) === false) { | |
return false; | |
} | |
} | |
}, | |
_onDrop: function (e) { | |
var that = this, | |
dataTransfer = e.dataTransfer = e.originalEvent && | |
e.originalEvent.dataTransfer, | |
data = {}; | |
if (dataTransfer && dataTransfer.files && dataTransfer.files.length) { | |
e.preventDefault(); | |
this._getDroppedFiles(dataTransfer).always(function (files) { | |
data.files = files; | |
if (that._trigger('drop', e, data) !== false) { | |
that._onAdd(e, data); | |
} | |
}); | |
} | |
}, | |
_onDragOver: function (e) { | |
var dataTransfer = e.dataTransfer = e.originalEvent && | |
e.originalEvent.dataTransfer; | |
if (dataTransfer) { | |
if (this._trigger('dragover', e) === false) { | |
return false; | |
} | |
if ($.inArray('Files', dataTransfer.types) !== -1) { | |
dataTransfer.dropEffect = 'copy'; | |
e.preventDefault(); | |
} | |
} | |
}, | |
_initEventHandlers: function () { | |
if (this._isXHRUpload(this.options)) { | |
this._on(this.options.dropZone, { | |
dragover: this._onDragOver, | |
drop: this._onDrop | |
}); | |
this._on(this.options.pasteZone, { | |
paste: this._onPaste | |
}); | |
} | |
this._on(this.options.fileInput, { | |
change: this._onChange | |
}); | |
}, | |
_destroyEventHandlers: function () { | |
this._off(this.options.dropZone, 'dragover drop'); | |
this._off(this.options.pasteZone, 'paste'); | |
this._off(this.options.fileInput, 'change'); | |
}, | |
_setOption: function (key, value) { | |
var refresh = $.inArray(key, this._refreshOptionsList) !== -1; | |
if (refresh) { | |
this._destroyEventHandlers(); | |
} | |
this._super(key, value); | |
if (refresh) { | |
this._initSpecialOptions(); | |
this._initEventHandlers(); | |
} | |
}, | |
_initSpecialOptions: function () { | |
var options = this.options; | |
if (options.fileInput === undefined) { | |
options.fileInput = this.element.is('input[type="file"]') ? | |
this.element : this.element.find('input[type="file"]'); | |
} else if (!(options.fileInput instanceof $)) { | |
options.fileInput = $(options.fileInput); | |
} | |
if (!(options.dropZone instanceof $)) { | |
options.dropZone = $(options.dropZone); | |
} | |
if (!(options.pasteZone instanceof $)) { | |
options.pasteZone = $(options.pasteZone); | |
} | |
}, | |
_create: function () { | |
var options = this.options; | |
// Initialize options set via HTML5 data-attributes: | |
$.extend(options, $(this.element[0].cloneNode(false)).data()); | |
this._initSpecialOptions(); | |
this._slots = []; | |
this._sequence = this._getXHRPromise(true); | |
this._sending = this._active = 0; | |
this._initProgressObject(this); | |
this._initEventHandlers(); | |
}, | |
// This method is exposed to the widget API and allows to query | |
// the number of active uploads: | |
active: function () { | |
return this._active; | |
}, | |
// This method is exposed to the widget API and allows to query | |
// the widget upload progress. | |
// It returns an object with loaded, total and bitrate properties | |
// for the running uploads: | |
progress: function () { | |
return this._progress; | |
}, | |
// This method is exposed to the widget API and allows adding files | |
// using the fileupload API. The data parameter accepts an object which | |
// must have a files property and can contain additional options: | |
// .fileupload('add', {files: filesList}); | |
add: function (data) { | |
var that = this; | |
if (!data || this.options.disabled) { | |
return; | |
} | |
if (data.fileInput && !data.files) { | |
this._getFileInputFiles(data.fileInput).always(function (files) { | |
data.files = files; | |
that._onAdd(null, data); | |
}); | |
} else { | |
data.files = $.makeArray(data.files); | |
this._onAdd(null, data); | |
} | |
}, | |
// This method is exposed to the widget API and allows sending files | |
// using the fileupload API. The data parameter accepts an object which | |
// must have a files or fileInput property and can contain additional options: | |
// .fileupload('send', {files: filesList}); | |
// The method returns a Promise object for the file upload call. | |
send: function (data) { | |
if (data && !this.options.disabled) { | |
if (data.fileInput && !data.files) { | |
var that = this, | |
dfd = $.Deferred(), | |
promise = dfd.promise(), | |
jqXHR, | |
aborted; | |
promise.abort = function () { | |
aborted = true; | |
if (jqXHR) { | |
return jqXHR.abort(); | |
} | |
dfd.reject(null, 'abort', 'abort'); | |
return promise; | |
}; | |
this._getFileInputFiles(data.fileInput).always( | |
function (files) { | |
if (aborted) { | |
return; | |
} | |
data.files = files; | |
jqXHR = that._onSend(null, data).then( | |
function (result, textStatus, jqXHR) { | |
dfd.resolve(result, textStatus, jqXHR); | |
}, | |
function (jqXHR, textStatus, errorThrown) { | |
dfd.reject(jqXHR, textStatus, errorThrown); | |
} | |
); | |
} | |
); | |
return this._enhancePromise(promise); | |
} | |
data.files = $.makeArray(data.files); | |
if (data.files.length) { | |
return this._onSend(null, data); | |
} | |
} | |
return this._getXHRPromise(false, data && data.context); | |
} | |
}); | |
})); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment