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Edit File : wp-plupload.js \| Size : 15.79 KB
/* global pluploadL10n, plupload, _wpPluploadSettings / /* * @namespace wp / window.wp = window.wp \|\| {}; ( function( exports, $ ) { var Uploader; if ( typeof _wpPluploadSettings === 'undefined' ) { return; } /* * A WordPress uploader. * * The Plupload library provides cross-browser uploader UI integration. * This object bridges the Plupload API to integrate uploads into the * WordPress back end and the WordPress media experience. * * @class * @memberOf wp * @alias wp.Uploader * * @param {object} options The options passed to the new plupload instance. * @param {object} options.container The id of uploader container. * @param {object} options.browser The id of button to trigger the file select. * @param {object} options.dropzone The id of file drop target. * @param {object} options.plupload An object of parameters to pass to the plupload instance. * @param {object} options.params An object of parameters to pass to $_POST when uploading the file. * Extends this.plupload.multipart_params under the hood. / Uploader = function( options ) { var self = this, isIE, // Not used, back-compat. elements = { container: 'container', browser: 'browse_button', dropzone: 'drop_element' }, tryAgainCount = {}, tryAgain, key, error, fileUploaded; this.supports = { upload: Uploader.browser.supported }; this.supported = this.supports.upload; if ( ! this.supported ) { return; } // Arguments to send to pluplad.Uploader(). // Use deep extend to ensure that multipart_params and other objects are cloned. this.plupload = $.extend( true, { multipart_params: {} }, Uploader.defaults ); this.container = document.body; // Set default container. / * Extend the instance with options. * * Use deep extend to allow options.plupload to override individual * default plupload keys. / $.extend( true, this, options ); // Proxy all methods so this always refers to the current instance. for ( key in this ) { if ( $.isFunction( this[ key ] ) ) { this[ key ] = $.proxy( this[ key ], this ); } } // Ensure all elements are jQuery elements and have id attributes, // then set the proper plupload arguments to the ids. for ( key in elements ) { if ( ! this[ key ] ) { continue; } this[ key ] = $( this[ key ] ).first(); if ( ! this[ key ].length ) { delete this[ key ]; continue; } if ( ! this[ key ].prop('id') ) { this[ key ].prop( 'id', '__wp-uploader-id-' + Uploader.uuid++ ); } this.plupload[ elements[ key ] ] = this[ key ].prop('id'); } // If the uploader has neither a browse button nor a dropzone, bail. if ( ! ( this.browser && this.browser.length ) && ! ( this.dropzone && this.dropzone.length ) ) { return; } // Initialize the plupload instance. this.uploader = new plupload.Uploader( this.plupload ); delete this.plupload; // Set default params and remove this.params alias. this.param( this.params \|\| {} ); delete this.params; /* * Attempt to create image sub-sizes when an image was uploaded successfully * but the server responded with HTTP 5xx error. * * @since 5.3.0 * * @param {string} message Error message. * @param {object} data Error data from Plupload. * @param {plupload.File} file File that was uploaded. / tryAgain = function( message, data, file ) { var times, id; if ( ! data \|\| ! data.responseHeaders ) { error( pluploadL10n.http_error_image, data, file, 'no-retry' ); return; } id = data.responseHeaders.match( /x-wp-upload-attachment-id:\s(\d+)/i ); if ( id && id[1] ) { id = id[1]; } else { error( pluploadL10n.http_error_image, data, file, 'no-retry' ); return; } times = tryAgainCount[ file.id ]; if ( times && times > 4 ) { /* * The file may have been uploaded and attachment post created, * but post-processing and resizing failed... * Do a cleanup then tell the user to scale down the image and upload it again. / $.ajax({ type: 'post', url: ajaxurl, dataType: 'json', data: { action: 'media-create-image-subsizes', _wpnonce: _wpPluploadSettings.defaults.multipart_params._wpnonce, attachment_id: id, _wp_upload_failed_cleanup: true, } }); error( message, data, file, 'no-retry' ); return; } if ( ! times ) { tryAgainCount[ file.id ] = 1; } else { tryAgainCount[ file.id ] = ++times; } // Another request to try to create the missing image sub-sizes. $.ajax({ type: 'post', url: ajaxurl, dataType: 'json', data: { action: 'media-create-image-subsizes', _wpnonce: _wpPluploadSettings.defaults.multipart_params._wpnonce, attachment_id: id, } }).done( function( response ) { if ( response.success ) { fileUploaded( self.uploader, file, response ); } else { if ( response.data && response.data.message ) { message = response.data.message; } error( message, data, file, 'no-retry' ); } }).fail( function( jqXHR ) { // If another HTTP 5xx error, try try again... if ( jqXHR.status >= 500 && jqXHR.status < 600 ) { tryAgain( message, data, file ); return; } error( message, data, file, 'no-retry' ); }); } /* * Custom error callback. * * Add a new error to the errors collection, so other modules can track * and display errors. @see wp.Uploader.errors. * * @param {string} message Error message. * @param {object} data Error data from Plupload. * @param {plupload.File} file File that was uploaded. * @param {string} retry Whether to try again to create image sub-sizes. Passing 'no-retry' will prevent it. / error = function( message, data, file, retry ) { var isImage = file.type && file.type.indexOf( 'image/' ) === 0, status = data && data.status; // If the file is an image and the error is HTTP 5xx try to create sub-sizes again. if ( retry !== 'no-retry' && isImage && status >= 500 && status < 600 ) { tryAgain( message, data, file ); return; } if ( file.attachment ) { file.attachment.destroy(); } Uploader.errors.unshift({ message: message \|\| pluploadL10n.default_error, data: data, file: file }); self.error( message, data, file ); }; /* * After a file is successfully uploaded, update its model. * * @param {plupload.Uploader} up Uploader instance. * @param {plupload.File} file File that was uploaded. * @param {Object} response Object with response properties. / fileUploaded = function( up, file, response ) { var complete; // Remove the "uploading" UI elements. _.each( ['file','loaded','size','percent'], function( key ) { file.attachment.unset( key ); } ); file.attachment.set( _.extend( response.data, { uploading: false } ) ); wp.media.model.Attachment.get( response.data.id, file.attachment ); complete = Uploader.queue.all( function( attachment ) { return ! attachment.get( 'uploading' ); }); if ( complete ) { Uploader.queue.reset(); } self.success( file.attachment ); } /* * After the Uploader has been initialized, initialize some behaviors for the dropzone. * * @param {plupload.Uploader} uploader Uploader instance. / this.uploader.bind( 'init', function( uploader ) { var timer, active, dragdrop, dropzone = self.dropzone; dragdrop = self.supports.dragdrop = uploader.features.dragdrop && ! Uploader.browser.mobile; // Generate drag/drop helper classes. if ( ! dropzone ) { return; } dropzone.toggleClass( 'supports-drag-drop', !! dragdrop ); if ( ! dragdrop ) { return dropzone.unbind('.wp-uploader'); } // 'dragenter' doesn't fire correctly, simulate it with a limited 'dragover'. dropzone.bind( 'dragover.wp-uploader', function() { if ( timer ) { clearTimeout( timer ); } if ( active ) { return; } dropzone.trigger('dropzone:enter').addClass('drag-over'); active = true; }); dropzone.bind('dragleave.wp-uploader, drop.wp-uploader', function() { / * Using an instant timer prevents the drag-over class * from being quickly removed and re-added when elements * inside the dropzone are repositioned. * * @see https://core.trac.wordpress.org/ticket/21705 / timer = setTimeout( function() { active = false; dropzone.trigger('dropzone:leave').removeClass('drag-over'); }, 0 ); }); self.ready = true; $(self).trigger( 'uploader:ready' ); }); this.uploader.bind( 'postinit', function( up ) { up.refresh(); self.init(); }); this.uploader.init(); if ( this.browser ) { this.browser.on( 'mouseenter', this.refresh ); } else { this.uploader.disableBrowse( true ); } $( self ).on( 'uploader:ready', function() { $( '.moxie-shim-html5 input[type="file"]' ) .attr( { tabIndex: '-1', 'aria-hidden': 'true' } ); } ); /* * After files were filtered and added to the queue, create a model for each. * * @param {plupload.Uploader} up Uploader instance. * @param {Array} files Array of file objects that were added to queue by the user. / this.uploader.bind( 'FilesAdded', function( up, files ) { _.each( files, function( file ) { var attributes, image; // Ignore failed uploads. if ( plupload.FAILED === file.status ) { return; } if ( file.type === 'image/heic' && up.settings.heic_upload_error ) { // Show error but do not block uploading. Uploader.errors.unshift({ message: pluploadL10n.unsupported_image, data: {}, file: file }); } // Generate attributes for a new `Attachment` model. attributes = _.extend({ file: file, uploading: true, date: new Date(), filename: file.name, menuOrder: 0, uploadedTo: wp.media.model.settings.post.id }, _.pick( file, 'loaded', 'size', 'percent' ) ); // Handle early mime type scanning for images. image = /(?:jpe?g\|png\|gif)$/i.exec( file.name ); // For images set the model's type and subtype attributes. if ( image ) { attributes.type = 'image'; // `jpeg`, `png` and `gif` are valid subtypes. // `jpg` is not, so map it to `jpeg`. attributes.subtype = ( 'jpg' === image[0] ) ? 'jpeg' : image[0]; } // Create a model for the attachment, and add it to the Upload queue collection // so listeners to the upload queue can track and display upload progress. file.attachment = wp.media.model.Attachment.create( attributes ); Uploader.queue.add( file.attachment ); self.added( file.attachment ); }); up.refresh(); up.start(); }); this.uploader.bind( 'UploadProgress', function( up, file ) { file.attachment.set( _.pick( file, 'loaded', 'percent' ) ); self.progress( file.attachment ); }); /* * After a file is successfully uploaded, update its model. * * @param {plupload.Uploader} up Uploader instance. * @param {plupload.File} file File that was uploaded. * @param {Object} response Object with response properties. * @return {mixed} / this.uploader.bind( 'FileUploaded', function( up, file, response ) { try { response = JSON.parse( response.response ); } catch ( e ) { return error( pluploadL10n.default_error, e, file ); } if ( ! _.isObject( response ) \|\| _.isUndefined( response.success ) ) { return error( pluploadL10n.default_error, null, file ); } else if ( ! response.success ) { return error( response.data && response.data.message, response.data, file ); } // Success. Update the UI with the new attachment. fileUploaded( up, file, response ); }); /* * When plupload surfaces an error, send it to the error handler. * * @param {plupload.Uploader} up Uploader instance. * @param {Object} pluploadError Contains code, message and sometimes file and other details. / this.uploader.bind( 'Error', function( up, pluploadError ) { var message = pluploadL10n.default_error, key; // Check for plupload errors. for ( key in Uploader.errorMap ) { if ( pluploadError.code === plupload[ key ] ) { message = Uploader.errorMap[ key ]; if ( _.isFunction( message ) ) { message = message( pluploadError.file, pluploadError ); } break; } } error( message, pluploadError, pluploadError.file ); up.refresh(); }); }; // Adds the 'defaults' and 'browser' properties. $.extend( Uploader, _wpPluploadSettings ); Uploader.uuid = 0; // Map Plupload error codes to user friendly error messages. Uploader.errorMap = { 'FAILED': pluploadL10n.upload_failed, 'FILE_EXTENSION_ERROR': pluploadL10n.invalid_filetype, 'IMAGE_FORMAT_ERROR': pluploadL10n.not_an_image, 'IMAGE_MEMORY_ERROR': pluploadL10n.image_memory_exceeded, 'IMAGE_DIMENSIONS_ERROR': pluploadL10n.image_dimensions_exceeded, 'GENERIC_ERROR': pluploadL10n.upload_failed, 'IO_ERROR': pluploadL10n.io_error, 'SECURITY_ERROR': pluploadL10n.security_error, 'FILE_SIZE_ERROR': function( file ) { return pluploadL10n.file_exceeds_size_limit.replace( '%s', file.name ); }, 'HTTP_ERROR': function( file ) { if ( file.type && file.type.indexOf( 'image/' ) === 0 ) { return pluploadL10n.http_error_image; } return pluploadL10n.http_error; }, }; $.extend( Uploader.prototype, /* @lends wp.Uploader.prototype /{ /* * Acts as a shortcut to extending the uploader's multipart_params object. * * param( key ) * Returns the value of the key. * * param( key, value ) * Sets the value of a key. * * param( map ) * Sets values for a map of data. / param: function( key, value ) { if ( arguments.length === 1 && typeof key === 'string' ) { return this.uploader.settings.multipart_params[ key ]; } if ( arguments.length > 1 ) { this.uploader.settings.multipart_params[ key ] = value; } else { $.extend( this.uploader.settings.multipart_params, key ); } }, /* * Make a few internal event callbacks available on the wp.Uploader object * to change the Uploader internals if absolutely necessary. / init: function() {}, error: function() {}, success: function() {}, added: function() {}, progress: function() {}, complete: function() {}, refresh: function() { var node, attached, container, id; if ( this.browser ) { node = this.browser[0]; // Check if the browser node is in the DOM. while ( node ) { if ( node === document.body ) { attached = true; break; } node = node.parentNode; } / * If the browser node is not attached to the DOM, * use a temporary container to house it, as the browser button shims * require the button to exist in the DOM at all times. */ if ( ! attached ) { id = 'wp-uploader-browser-' + this.uploader.id; container = $( '#' + id ); if ( ! container.length ) { container = $('<div class="wp-uploader-browser" />').css({ position: 'fixed', top: '-1000px', left: '-1000px', height: 0, width: 0 }).attr( 'id', 'wp-uploader-browser-' + this.uploader.id ).appendTo('body'); } container.append( this.browser ); } } this.uploader.refresh(); } }); // Create a collection of attachments in the upload queue, // so that other modules can track and display upload progress. Uploader.queue = new wp.media.model.Attachments( [], { query: false }); // Create a collection to collect errors incurred while attempting upload. Uploader.errors = new Backbone.Collection(); exports.Uploader = Uploader; })( wp, jQuery ); Back

Edit File : wp-plupload.js | Size : 15.79 KB

/* global pluploadL10n, plupload, _wpPluploadSettings */

/**
 * @namespace wp
 */
window.wp = window.wp || {};

( function( exports, $ ) {
	var Uploader;

if ( typeof _wpPluploadSettings === 'undefined' ) {
		return;
	}

/**
	 * A WordPress uploader.
	 *
	 * The Plupload library provides cross-browser uploader UI integration.
	 * This object bridges the Plupload API to integrate uploads into the
	 * WordPress back end and the WordPress media experience.
	 *
	 * @class
	 * @memberOf wp
	 * @alias wp.Uploader
	 *
	 * @param {object} options           The options passed to the new plupload instance.
	 * @param {object} options.container The id of uploader container.
	 * @param {object} options.browser   The id of button to trigger the file select.
	 * @param {object} options.dropzone  The id of file drop target.
	 * @param {object} options.plupload  An object of parameters to pass to the plupload instance.
	 * @param {object} options.params    An object of parameters to pass to $_POST when uploading the file.
	 *                                   Extends this.plupload.multipart_params under the hood.
	 */
	Uploader = function( options ) {
		var self = this,
			isIE, // Not used, back-compat.
			elements = {
				container: 'container',
				browser:   'browse_button',
				dropzone:  'drop_element'
			},
			tryAgainCount = {},
			tryAgain,
			key,
			error,
			fileUploaded;

this.supports = {
			upload: Uploader.browser.supported
		};

this.supported = this.supports.upload;

if ( ! this.supported ) {
			return;
		}

// Arguments to send to pluplad.Uploader().
		// Use deep extend to ensure that multipart_params and other objects are cloned.
		this.plupload = $.extend( true, { multipart_params: {} }, Uploader.defaults );
		this.container = document.body; // Set default container.

/*
		 * Extend the instance with options.
		 *
		 * Use deep extend to allow options.plupload to override individual
		 * default plupload keys.
		 */
		$.extend( true, this, options );

// Proxy all methods so this always refers to the current instance.
		for ( key in this ) {
			if ( $.isFunction( this[ key ] ) ) {
				this[ key ] = $.proxy( this[ key ], this );
			}
		}

// Ensure all elements are jQuery elements and have id attributes,
		// then set the proper plupload arguments to the ids.
		for ( key in elements ) {
			if ( ! this[ key ] ) {
				continue;
			}

this[ key ] = $( this[ key ] ).first();

if ( ! this[ key ].length ) {
				delete this[ key ];
				continue;
			}

if ( ! this[ key ].prop('id') ) {
				this[ key ].prop( 'id', '__wp-uploader-id-' + Uploader.uuid++ );
			}

this.plupload[ elements[ key ] ] = this[ key ].prop('id');
		}

// If the uploader has neither a browse button nor a dropzone, bail.
		if ( ! ( this.browser && this.browser.length ) && ! ( this.dropzone && this.dropzone.length ) ) {
			return;
		}

// Initialize the plupload instance.
		this.uploader = new plupload.Uploader( this.plupload );
		delete this.plupload;

// Set default params and remove this.params alias.
		this.param( this.params || {} );
		delete this.params;

/**
		 * Attempt to create image sub-sizes when an image was uploaded successfully
		 * but the server responded with HTTP 5xx error.
		 *
		 * @since 5.3.0
		 *
		 * @param {string}        message Error message.
		 * @param {object}        data    Error data from Plupload.
		 * @param {plupload.File} file    File that was uploaded.
		 */
		tryAgain = function( message, data, file ) {
			var times, id;

if ( ! data || ! data.responseHeaders ) {
				error( pluploadL10n.http_error_image, data, file, 'no-retry' );
				return;
			}

id = data.responseHeaders.match( /x-wp-upload-attachment-id:\s*(\d+)/i );

if ( id && id[1] ) {
				id = id[1];
			} else {
				error( pluploadL10n.http_error_image, data, file, 'no-retry' );
				return;
			}

times = tryAgainCount[ file.id ];

if ( times && times > 4 ) {
				/*
				 * The file may have been uploaded and attachment post created,
				 * but post-processing and resizing failed...
				 * Do a cleanup then tell the user to scale down the image and upload it again.
				 */
				$.ajax({
					type: 'post',
					url: ajaxurl,
					dataType: 'json',
					data: {
						action: 'media-create-image-subsizes',
						_wpnonce: _wpPluploadSettings.defaults.multipart_params._wpnonce,
						attachment_id: id,
						_wp_upload_failed_cleanup: true,
					}
				});

error( message, data, file, 'no-retry' );
				return;
			}

if ( ! times ) {
				tryAgainCount[ file.id ] = 1;
			} else {
				tryAgainCount[ file.id ] = ++times;
			}

// Another request to try to create the missing image sub-sizes.
			$.ajax({
				type: 'post',
				url: ajaxurl,
				dataType: 'json',
				data: {
					action: 'media-create-image-subsizes',
					_wpnonce: _wpPluploadSettings.defaults.multipart_params._wpnonce,
					attachment_id: id,
				}
			}).done( function( response ) {
				if ( response.success ) {
					fileUploaded( self.uploader, file, response );
				} else {
					if ( response.data && response.data.message ) {
						message = response.data.message;
					}

error( message, data, file, 'no-retry' );
				}
			}).fail( function( jqXHR ) {
				// If another HTTP 5xx error, try try again...
				if ( jqXHR.status >= 500 && jqXHR.status < 600 ) {
					tryAgain( message, data, file );
					return;
				}

error( message, data, file, 'no-retry' );
			});
		}

/**
		 * Custom error callback.
		 *
		 * Add a new error to the errors collection, so other modules can track
		 * and display errors. @see wp.Uploader.errors.
		 *
		 * @param {string}        message Error message.
		 * @param {object}        data    Error data from Plupload.
		 * @param {plupload.File} file    File that was uploaded.
		 * @param {string}        retry   Whether to try again to create image sub-sizes. Passing 'no-retry' will prevent it.
		 */
		error = function( message, data, file, retry ) {
			var isImage = file.type && file.type.indexOf( 'image/' ) === 0,
				status = data && data.status;

// If the file is an image and the error is HTTP 5xx try to create sub-sizes again.
			if ( retry !== 'no-retry' && isImage && status >= 500 && status < 600 ) {
				tryAgain( message, data, file );
				return;
			}

if ( file.attachment ) {
				file.attachment.destroy();
			}

Uploader.errors.unshift({
				message: message || pluploadL10n.default_error,
				data:    data,
				file:    file
			});

self.error( message, data, file );
		};

/**
		 * After a file is successfully uploaded, update its model.
		 *
		 * @param {plupload.Uploader} up       Uploader instance.
		 * @param {plupload.File}     file     File that was uploaded.
		 * @param {Object}            response Object with response properties.
		 */
		fileUploaded = function( up, file, response ) {
			var complete;

// Remove the "uploading" UI elements.
			_.each( ['file','loaded','size','percent'], function( key ) {
				file.attachment.unset( key );
			} );

file.attachment.set( _.extend( response.data, { uploading: false } ) );

wp.media.model.Attachment.get( response.data.id, file.attachment );

complete = Uploader.queue.all( function( attachment ) {
				return ! attachment.get( 'uploading' );
			});

if ( complete ) {
				Uploader.queue.reset();
			}

self.success( file.attachment );
		}

/**
		 * After the Uploader has been initialized, initialize some behaviors for the dropzone.
		 *
		 * @param {plupload.Uploader} uploader Uploader instance.
		 */
		this.uploader.bind( 'init', function( uploader ) {
			var timer, active, dragdrop,
				dropzone = self.dropzone;

dragdrop = self.supports.dragdrop = uploader.features.dragdrop && ! Uploader.browser.mobile;

// Generate drag/drop helper classes.
			if ( ! dropzone ) {
				return;
			}

dropzone.toggleClass( 'supports-drag-drop', !! dragdrop );

if ( ! dragdrop ) {
				return dropzone.unbind('.wp-uploader');
			}

// 'dragenter' doesn't fire correctly, simulate it with a limited 'dragover'.
			dropzone.bind( 'dragover.wp-uploader', function() {
				if ( timer ) {
					clearTimeout( timer );
				}

if ( active ) {
					return;
				}

dropzone.trigger('dropzone:enter').addClass('drag-over');
				active = true;
			});

dropzone.bind('dragleave.wp-uploader, drop.wp-uploader', function() {
				/*
				 * Using an instant timer prevents the drag-over class
				 * from being quickly removed and re-added when elements
				 * inside the dropzone are repositioned.
				 *
				 * @see https://core.trac.wordpress.org/ticket/21705
				 */
				timer = setTimeout( function() {
					active = false;
					dropzone.trigger('dropzone:leave').removeClass('drag-over');
				}, 0 );
			});

self.ready = true;
			$(self).trigger( 'uploader:ready' );
		});

this.uploader.bind( 'postinit', function( up ) {
			up.refresh();
			self.init();
		});

this.uploader.init();

if ( this.browser ) {
			this.browser.on( 'mouseenter', this.refresh );
		} else {
			this.uploader.disableBrowse( true );
		}

$( self ).on( 'uploader:ready', function() {
			$( '.moxie-shim-html5 input[type="file"]' )
				.attr( {
					tabIndex:      '-1',
					'aria-hidden': 'true'
				} );
		} );

/**
		 * After files were filtered and added to the queue, create a model for each.
		 *
		 * @param {plupload.Uploader} up    Uploader instance.
		 * @param {Array}             files Array of file objects that were added to queue by the user.
		 */
		this.uploader.bind( 'FilesAdded', function( up, files ) {
			_.each( files, function( file ) {
				var attributes, image;

// Ignore failed uploads.
				if ( plupload.FAILED === file.status ) {
					return;
				}

if ( file.type === 'image/heic' && up.settings.heic_upload_error ) {
					// Show error but do not block uploading.
					Uploader.errors.unshift({
						message: pluploadL10n.unsupported_image,
						data:    {},
						file:    file
					});
				}

// Generate attributes for a new `Attachment` model.
				attributes = _.extend({
					file:      file,
					uploading: true,
					date:      new Date(),
					filename:  file.name,
					menuOrder: 0,
					uploadedTo: wp.media.model.settings.post.id
				}, _.pick( file, 'loaded', 'size', 'percent' ) );

// Handle early mime type scanning for images.
				image = /(?:jpe?g|png|gif)$/i.exec( file.name );

// For images set the model's type and subtype attributes.
				if ( image ) {
					attributes.type = 'image';

// `jpeg`, `png` and `gif` are valid subtypes.
					// `jpg` is not, so map it to `jpeg`.
					attributes.subtype = ( 'jpg' === image[0] ) ? 'jpeg' : image[0];
				}

// Create a model for the attachment, and add it to the Upload queue collection
				// so listeners to the upload queue can track and display upload progress.
				file.attachment = wp.media.model.Attachment.create( attributes );
				Uploader.queue.add( file.attachment );

self.added( file.attachment );
			});

up.refresh();
			up.start();
		});

this.uploader.bind( 'UploadProgress', function( up, file ) {
			file.attachment.set( _.pick( file, 'loaded', 'percent' ) );
			self.progress( file.attachment );
		});

/**
		 * After a file is successfully uploaded, update its model.
		 *
		 * @param {plupload.Uploader} up       Uploader instance.
		 * @param {plupload.File}     file     File that was uploaded.
		 * @param {Object}            response Object with response properties.
		 * @return {mixed}
		 */
		this.uploader.bind( 'FileUploaded', function( up, file, response ) {

try {
				response = JSON.parse( response.response );
			} catch ( e ) {
				return error( pluploadL10n.default_error, e, file );
			}

if ( ! _.isObject( response ) || _.isUndefined( response.success ) ) {
				return error( pluploadL10n.default_error, null, file );
			} else if ( ! response.success ) {
				return error( response.data && response.data.message, response.data, file );
			}

// Success. Update the UI with the new attachment.
			fileUploaded( up, file, response );
		});

/**
		 * When plupload surfaces an error, send it to the error handler.
		 *
		 * @param {plupload.Uploader} up            Uploader instance.
		 * @param {Object}            pluploadError Contains code, message and sometimes file and other details.
		 */
		this.uploader.bind( 'Error', function( up, pluploadError ) {
			var message = pluploadL10n.default_error,
				key;

// Check for plupload errors.
			for ( key in Uploader.errorMap ) {
				if ( pluploadError.code === plupload[ key ] ) {
					message = Uploader.errorMap[ key ];

if ( _.isFunction( message ) ) {
						message = message( pluploadError.file, pluploadError );
					}

break;
				}
			}

error( message, pluploadError, pluploadError.file );
			up.refresh();
		});

};

// Adds the 'defaults' and 'browser' properties.
	$.extend( Uploader, _wpPluploadSettings );

Uploader.uuid = 0;

// Map Plupload error codes to user friendly error messages.
	Uploader.errorMap = {
		'FAILED':                 pluploadL10n.upload_failed,
		'FILE_EXTENSION_ERROR':   pluploadL10n.invalid_filetype,
		'IMAGE_FORMAT_ERROR':     pluploadL10n.not_an_image,
		'IMAGE_MEMORY_ERROR':     pluploadL10n.image_memory_exceeded,
		'IMAGE_DIMENSIONS_ERROR': pluploadL10n.image_dimensions_exceeded,
		'GENERIC_ERROR':          pluploadL10n.upload_failed,
		'IO_ERROR':               pluploadL10n.io_error,
		'SECURITY_ERROR':         pluploadL10n.security_error,

'FILE_SIZE_ERROR': function( file ) {
			return pluploadL10n.file_exceeds_size_limit.replace( '%s', file.name );
		},

'HTTP_ERROR': function( file ) {
			if ( file.type && file.type.indexOf( 'image/' ) === 0 ) {
				return pluploadL10n.http_error_image;
			}

return pluploadL10n.http_error;
		},
	};

$.extend( Uploader.prototype, /** @lends wp.Uploader.prototype */{
		/**
		 * Acts as a shortcut to extending the uploader's multipart_params object.
		 *
		 * param( key )
		 *    Returns the value of the key.
		 *
		 * param( key, value )
		 *    Sets the value of a key.
		 *
		 * param( map )
		 *    Sets values for a map of data.
		 */
		param: function( key, value ) {
			if ( arguments.length === 1 && typeof key === 'string' ) {
				return this.uploader.settings.multipart_params[ key ];
			}

if ( arguments.length > 1 ) {
				this.uploader.settings.multipart_params[ key ] = value;
			} else {
				$.extend( this.uploader.settings.multipart_params, key );
			}
		},

/**
		 * Make a few internal event callbacks available on the wp.Uploader object
		 * to change the Uploader internals if absolutely necessary.
		 */
		init:     function() {},
		error:    function() {},
		success:  function() {},
		added:    function() {},
		progress: function() {},
		complete: function() {},
		refresh:  function() {
			var node, attached, container, id;

if ( this.browser ) {
				node = this.browser[0];

// Check if the browser node is in the DOM.
				while ( node ) {
					if ( node === document.body ) {
						attached = true;
						break;
					}
					node = node.parentNode;
				}

/*
				 * If the browser node is not attached to the DOM,
				 * use a temporary container to house it, as the browser button shims
				 * require the button to exist in the DOM at all times.
				 */
				if ( ! attached ) {
					id = 'wp-uploader-browser-' + this.uploader.id;

container = $( '#' + id );
					if ( ! container.length ) {
						container = $('<div class="wp-uploader-browser" />').css({
							position: 'fixed',
							top: '-1000px',
							left: '-1000px',
							height: 0,
							width: 0
						}).attr( 'id', 'wp-uploader-browser-' + this.uploader.id ).appendTo('body');
					}

container.append( this.browser );
				}
			}

this.uploader.refresh();
		}
	});

// Create a collection of attachments in the upload queue,
	// so that other modules can track and display upload progress.
	Uploader.queue = new wp.media.model.Attachments( [], { query: false });

// Create a collection to collect errors incurred while attempting upload.
	Uploader.errors = new Backbone.Collection();

exports.Uploader = Uploader;
})( wp, jQuery );

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