1
/* global _wpMediaModelsL10n:false */
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window.wp = window.wp || {};
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var Attachment, Attachments, Query, PostImage, compare, l10n, media;
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* Create and return a media frame.
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* Handles the default media experience. Automatically creates
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* and opens a media frame, and returns the result.
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* Does nothing if the controllers do not exist.
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* @param {object} attributes The properties passed to the main media controller.
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* @return {wp.media.view.MediaFrame} A media workflow.
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media = wp.media = function( attributes ) {
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var MediaFrame = media.view.MediaFrame,
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attributes = _.defaults( attributes || {}, {
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if ( 'select' === attributes.frame && MediaFrame.Select ) {
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frame = new MediaFrame.Select( attributes );
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} else if ( 'post' === attributes.frame && MediaFrame.Post ) {
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frame = new MediaFrame.Post( attributes );
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} else if ( 'manage' === attributes.frame && MediaFrame.Manage ) {
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frame = new MediaFrame.Manage( attributes );
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} else if ( 'image' === attributes.frame && MediaFrame.ImageDetails ) {
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frame = new MediaFrame.ImageDetails( attributes );
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} else if ( 'audio' === attributes.frame && MediaFrame.AudioDetails ) {
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frame = new MediaFrame.AudioDetails( attributes );
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} else if ( 'video' === attributes.frame && MediaFrame.VideoDetails ) {
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frame = new MediaFrame.VideoDetails( attributes );
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} else if ( 'edit-attachments' === attributes.frame && MediaFrame.EditAttachments ) {
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frame = new MediaFrame.EditAttachments( attributes );
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delete attributes.frame;
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_.extend( media, { model: {}, view: {}, controller: {}, frames: {} });
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// Link any localized strings.
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l10n = media.model.l10n = typeof _wpMediaModelsL10n === 'undefined' ? {} : _wpMediaModelsL10n;
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media.model.settings = l10n.settings || {};
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* ========================================================================
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* ========================================================================
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* @param {mixed} a The primary parameter to compare.
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* @param {mixed} b The primary parameter to compare.
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* @param {string} ac The fallback parameter to compare, a's cid.
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* @param {string} bc The fallback parameter to compare, b's cid.
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* @return {number} -1: a should come before b.
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* 0: a and b are of the same rank.
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* 1: b should come before a.
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compare = function( a, b, ac, bc ) {
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if ( _.isEqual( a, b ) ) {
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return ac === bc ? 0 : (ac > bc ? -1 : 1);
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return a > b ? -1 : 1;
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* media.template( id )
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* Fetches a template by id.
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* See wp.template() in `wp-includes/js/wp-util.js`.
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* @borrows wp.template as template
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template: wp.template,
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* media.post( [action], [data] )
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* Sends a POST request to WordPress.
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* See wp.ajax.post() in `wp-includes/js/wp-util.js`.
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* @borrows wp.ajax.post as post
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* media.ajax( [action], [options] )
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* Sends an XHR request to WordPress.
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* See wp.ajax.send() in `wp-includes/js/wp-util.js`.
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* @borrows wp.ajax.send as ajax
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* Scales a set of dimensions to fit within bounding dimensions.
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* @param {Object} dimensions
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fit: function( dimensions ) {
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var width = dimensions.width,
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height = dimensions.height,
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maxWidth = dimensions.maxWidth,
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maxHeight = dimensions.maxHeight,
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// Compare ratios between the two values to determine which
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// max to constrain by. If a max value doesn't exist, then the
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// opposite side is the constraint.
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if ( ! _.isUndefined( maxWidth ) && ! _.isUndefined( maxHeight ) ) {
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constraint = ( width / height > maxWidth / maxHeight ) ? 'width' : 'height';
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} else if ( _.isUndefined( maxHeight ) ) {
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constraint = 'width';
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} else if ( _.isUndefined( maxWidth ) && height > maxHeight ) {
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constraint = 'height';
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// If the value of the constrained side is larger than the max,
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// then scale the values. Otherwise return the originals; they fit.
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if ( 'width' === constraint && width > maxWidth ) {
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height: Math.round( maxWidth * height / width )
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} else if ( 'height' === constraint && height > maxHeight ) {
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width : Math.round( maxHeight * width / height ),
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* Truncates a string by injecting an ellipsis into the middle.
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* Useful for filenames.
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* @param {String} string
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* @param {Number} [length=30]
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* @param {String} [replacement=…]
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* @returns {String} The string, unless length is greater than string.length.
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truncate: function( string, length, replacement ) {
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length = length || 30;
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replacement = replacement || '…';
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if ( string.length <= length ) {
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return string.substr( 0, length / 2 ) + replacement + string.substr( -1 * length / 2 );
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* ========================================================================
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* ========================================================================
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* wp.media.attachment
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* @param {String} id A string used to identify a model.
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* @returns {wp.media.model.Attachment}
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media.attachment = function( id ) {
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return Attachment.get( id );
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* wp.media.model.Attachment
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* @augments Backbone.Model
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Attachment = media.model.Attachment = Backbone.Model.extend({
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* Triggered when attachment details change
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* Overrides Backbone.Model.sync
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* @param {string} method
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* @param {wp.media.model.Attachment} model
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* @param {Object} [options={}]
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sync: function( method, model, options ) {
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// If the attachment does not yet have an `id`, return an instantly
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// rejected promise. Otherwise, all of our requests will fail.
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if ( _.isUndefined( this.id ) ) {
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return $.Deferred().rejectWith( this ).promise();
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// Overload the `read` request so Attachment.fetch() functions correctly.
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if ( 'read' === method ) {
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options = options || {};
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options.context = this;
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options.data = _.extend( options.data || {}, {
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action: 'get-attachment',
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return media.ajax( options );
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// Overload the `update` request so properties can be saved.
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} else if ( 'update' === method ) {
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// If we do not have the necessary nonce, fail immeditately.
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if ( ! this.get('nonces') || ! this.get('nonces').update ) {
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return $.Deferred().rejectWith( this ).promise();
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options = options || {};
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options.context = this;
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// Set the action and ID.
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options.data = _.extend( options.data || {}, {
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action: 'save-attachment',
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nonce: this.get('nonces').update,
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post_id: media.model.settings.post.id
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// Record the values of the changed attributes.
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if ( model.hasChanged() ) {
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options.data.changes = {};
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_.each( model.changed, function( value, key ) {
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options.data.changes[ key ] = this.get( key );
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return media.ajax( options );
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// Overload the `delete` request so attachments can be removed.
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// This will permanently delete an attachment.
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} else if ( 'delete' === method ) {
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options = options || {};
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if ( ! options.wait ) {
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this.destroyed = true;
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options.context = this;
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options.data = _.extend( options.data || {}, {
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action: 'delete-post',
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_wpnonce: this.get('nonces')['delete']
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return media.ajax( options ).done( function() {
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this.destroyed = true;
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}).fail( function() {
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this.destroyed = false;
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// Otherwise, fall back to `Backbone.sync()`.
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* Call `sync` directly on Backbone.Model
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return Backbone.Model.prototype.sync.apply( this, arguments );
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* Convert date strings into Date objects.
293
* @param {Object} resp The raw response object, typically returned by fetch()
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* @returns {Object} The modified response object, which is the attributes hash
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* to be set on the model.
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parse: function( resp ) {
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resp.date = new Date( resp.date );
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resp.modified = new Date( resp.modified );
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* @param {Object} data The properties to be saved.
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* @param {Object} options Sync options. e.g. patch, wait, success, error.
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* @this Backbone.Model
314
saveCompat: function( data, options ) {
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// If we do not have the necessary nonce, fail immeditately.
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if ( ! this.get('nonces') || ! this.get('nonces').update ) {
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return $.Deferred().rejectWith( this ).promise();
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return media.post( 'save-attachment-compat', _.defaults({
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nonce: this.get('nonces').update,
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post_id: media.model.settings.post.id
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}, data ) ).done( function( resp, status, xhr ) {
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model.set( model.parse( resp, xhr ), options );
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* Add a model to the end of the static 'all' collection and return it.
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* @param {Object} attrs
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* @returns {wp.media.model.Attachment}
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create: function( attrs ) {
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return Attachments.all.push( attrs );
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* Retrieve a model, or add it to the end of the static 'all' collection before returning it.
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* @param {string} id A string used to identify a model.
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* @param {Backbone.Model|undefined} attachment
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* @returns {wp.media.model.Attachment}
349
get: _.memoize( function( id, attachment ) {
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return Attachments.all.push( attachment || { id: id } );
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* wp.media.model.PostImage
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* @augments Backbone.Model
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PostImage = media.model.PostImage = Backbone.Model.extend({
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initialize: function( attributes ) {
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this.attachment = false;
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if ( attributes.attachment_id ) {
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this.attachment = Attachment.get( attributes.attachment_id );
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if ( this.attachment.get( 'url' ) ) {
368
this.dfd = $.Deferred();
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this.dfd = this.attachment.fetch();
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this.bindAttachmentListeners();
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// keep url in sync with changes to the type of link
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this.on( 'change:link', this.updateLinkUrl, this );
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this.on( 'change:size', this.updateSize, this );
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this.setLinkTypeFromUrl();
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this.setAspectRatio();
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this.set( 'originalUrl', attributes.url );
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bindAttachmentListeners: function() {
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this.listenTo( this.attachment, 'sync', this.setLinkTypeFromUrl );
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this.listenTo( this.attachment, 'sync', this.setAspectRatio );
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this.listenTo( this.attachment, 'change', this.updateSize );
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changeAttachment: function( attachment, props ) {
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this.stopListening( this.attachment );
394
this.attachment = attachment;
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this.bindAttachmentListeners();
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this.set( 'attachment_id', this.attachment.get( 'id' ) );
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this.set( 'caption', this.attachment.get( 'caption' ) );
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this.set( 'alt', this.attachment.get( 'alt' ) );
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this.set( 'size', props.get( 'size' ) );
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this.set( 'align', props.get( 'align' ) );
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this.set( 'link', props.get( 'link' ) );
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this.updateLinkUrl();
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setLinkTypeFromUrl: function() {
408
var linkUrl = this.get( 'linkUrl' ),
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this.set( 'link', 'none' );
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// default to custom if there is a linkUrl
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if ( this.attachment ) {
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if ( this.attachment.get( 'url' ) === linkUrl ) {
422
} else if ( this.attachment.get( 'link' ) === linkUrl ) {
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if ( this.get( 'url' ) === linkUrl ) {
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this.set( 'link', type );
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updateLinkUrl: function() {
435
var link = this.get( 'link' ),
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if ( this.attachment ) {
441
url = this.attachment.get( 'url' );
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url = this.get( 'url' );
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this.set( 'linkUrl', url );
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this.set( 'linkUrl', this.attachment.get( 'link' ) );
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this.set( 'linkUrl', '' );
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updateSize: function() {
459
if ( ! this.attachment ) {
463
if ( this.get( 'size' ) === 'custom' ) {
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this.set( 'width', this.get( 'customWidth' ) );
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this.set( 'height', this.get( 'customHeight' ) );
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this.set( 'url', this.get( 'originalUrl' ) );
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size = this.attachment.get( 'sizes' )[ this.get( 'size' ) ];
476
this.set( 'url', size.url );
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this.set( 'width', size.width );
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this.set( 'height', size.height );
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setAspectRatio: function() {
484
if ( this.attachment && this.attachment.get( 'sizes' ) ) {
485
full = this.attachment.get( 'sizes' ).full;
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this.set( 'aspectRatio', full.width / full.height );
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this.set( 'aspectRatio', this.get( 'customWidth' ) / this.get( 'customHeight' ) );
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* wp.media.model.Attachments
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* @augments Backbone.Collection
503
Attachments = media.model.Attachments = Backbone.Collection.extend({
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* @type {wp.media.model.Attachment}
509
* @param {Array} [models=[]] Array of models used to populate the collection.
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* @param {Object} [options={}]
512
initialize: function( models, options ) {
513
options = options || {};
515
this.props = new Backbone.Model();
516
this.filters = options.filters || {};
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// Bind default `change` events to the `props` model.
519
this.props.on( 'change', this._changeFilteredProps, this );
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this.props.on( 'change:order', this._changeOrder, this );
522
this.props.on( 'change:orderby', this._changeOrderby, this );
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this.props.on( 'change:query', this._changeQuery, this );
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// Set the `props` model and fill the default property values.
526
this.props.set( _.defaults( options.props || {} ) );
528
// Observe another `Attachments` collection if one is provided.
529
if ( options.observe ) {
530
this.observe( options.observe );
534
* Automatically sort the collection when the order changes.
538
_changeOrder: function() {
539
if ( this.comparator ) {
544
* Set the default comparator only when the `orderby` property is set.
548
* @param {Backbone.Model} model
549
* @param {string} orderby
551
_changeOrderby: function( model, orderby ) {
552
// If a different comparator is defined, bail.
553
if ( this.comparator && this.comparator !== Attachments.comparator ) {
557
if ( orderby && 'post__in' !== orderby ) {
558
this.comparator = Attachments.comparator;
560
delete this.comparator;
564
* If the `query` property is set to true, query the server using
565
* the `props` values, and sync the results to this collection.
569
* @param {Backbone.Model} model
570
* @param {Boolean} query
572
_changeQuery: function( model, query ) {
574
this.props.on( 'change', this._requery, this );
577
this.props.off( 'change', this._requery, this );
583
* @param {Backbone.Model} model
585
_changeFilteredProps: function( model ) {
586
// If this is a query, updating the collection will be handled by
587
// `this._requery()`.
588
if ( this.props.get('query') ) {
592
var changed = _.chain( model.changed ).map( function( t, prop ) {
593
var filter = Attachments.filters[ prop ],
594
term = model.get( prop );
600
if ( term && ! this.filters[ prop ] ) {
601
this.filters[ prop ] = filter;
602
} else if ( ! term && this.filters[ prop ] === filter ) {
603
delete this.filters[ prop ];
608
// Record the change.
610
}, this ).any().value();
616
// If no `Attachments` model is provided to source the searches
617
// from, then automatically generate a source from the existing
619
if ( ! this._source ) {
620
this._source = new Attachments( this.models );
623
this.reset( this._source.filter( this.validator, this ) );
626
validateDestroyed: false,
628
* @param {wp.media.model.Attachment} attachment
631
validator: function( attachment ) {
632
if ( ! this.validateDestroyed && attachment.destroyed ) {
635
return _.all( this.filters, function( filter ) {
636
return !! filter.call( this, attachment );
640
* @param {wp.media.model.Attachment} attachment
641
* @param {Object} options
642
* @returns {wp.media.model.Attachments} Returns itself to allow chaining
644
validate: function( attachment, options ) {
645
var valid = this.validator( attachment ),
646
hasAttachment = !! this.get( attachment.cid );
648
if ( ! valid && hasAttachment ) {
649
this.remove( attachment, options );
650
} else if ( valid && ! hasAttachment ) {
651
this.add( attachment, options );
658
* @param {wp.media.model.Attachments} attachments
659
* @param {object} [options={}]
661
* @fires wp.media.model.Attachments#reset
663
* @returns {wp.media.model.Attachments} Returns itself to allow chaining
665
validateAll: function( attachments, options ) {
666
options = options || {};
668
_.each( attachments.models, function( attachment ) {
669
this.validate( attachment, { silent: true });
672
if ( ! options.silent ) {
673
this.trigger( 'reset', this, options );
678
* @param {wp.media.model.Attachments} attachments
679
* @returns {wp.media.model.Attachments} Returns itself to allow chaining
681
observe: function( attachments ) {
682
this.observers = this.observers || [];
683
this.observers.push( attachments );
685
attachments.on( 'add change remove', this._validateHandler, this );
686
attachments.on( 'reset', this._validateAllHandler, this );
687
this.validateAll( attachments );
691
* @param {wp.media.model.Attachments} attachments
692
* @returns {wp.media.model.Attachments} Returns itself to allow chaining
694
unobserve: function( attachments ) {
696
attachments.off( null, null, this );
697
this.observers = _.without( this.observers, attachments );
700
_.each( this.observers, function( attachments ) {
701
attachments.off( null, null, this );
703
delete this.observers;
711
* @param {wp.media.model.Attachments} attachment
712
* @param {wp.media.model.Attachments} attachments
713
* @param {Object} options
715
* @returns {wp.media.model.Attachments} Returns itself to allow chaining
717
_validateHandler: function( attachment, attachments, options ) {
718
// If we're not mirroring this `attachments` collection,
719
// only retain the `silent` option.
720
options = attachments === this.mirroring ? options : {
721
silent: options && options.silent
724
return this.validate( attachment, options );
729
* @param {wp.media.model.Attachments} attachments
730
* @param {Object} options
731
* @returns {wp.media.model.Attachments} Returns itself to allow chaining
733
_validateAllHandler: function( attachments, options ) {
734
return this.validateAll( attachments, options );
737
* @param {wp.media.model.Attachments} attachments
738
* @returns {wp.media.model.Attachments} Returns itself to allow chaining
740
mirror: function( attachments ) {
741
if ( this.mirroring && this.mirroring === attachments ) {
746
this.mirroring = attachments;
748
// Clear the collection silently. A `reset` event will be fired
749
// when `observe()` calls `validateAll()`.
750
this.reset( [], { silent: true } );
751
this.observe( attachments );
755
unmirror: function() {
756
if ( ! this.mirroring ) {
760
this.unobserve( this.mirroring );
761
delete this.mirroring;
764
* @param {Object} options
767
more: function( options ) {
768
var deferred = $.Deferred(),
769
mirroring = this.mirroring,
772
if ( ! mirroring || ! mirroring.more ) {
773
return deferred.resolveWith( this ).promise();
775
// If we're mirroring another collection, forward `more` to
776
// the mirrored collection. Account for a race condition by
777
// checking if we're still mirroring that collection when
778
// the request resolves.
779
mirroring.more( options ).done( function() {
780
if ( this === attachments.mirroring )
781
deferred.resolveWith( this );
784
return deferred.promise();
789
hasMore: function() {
790
return this.mirroring ? this.mirroring.hasMore() : false;
793
* Overrides Backbone.Collection.parse
795
* @param {Object|Array} resp The raw response Object/Array.
796
* @param {Object} xhr
797
* @returns {Array} The array of model attributes to be added to the collection
799
parse: function( resp, xhr ) {
800
if ( ! _.isArray( resp ) ) {
804
return _.map( resp, function( attrs ) {
805
var id, attachment, newAttributes;
807
if ( attrs instanceof Backbone.Model ) {
808
id = attrs.get( 'id' );
809
attrs = attrs.attributes;
814
attachment = Attachment.get( id );
815
newAttributes = attachment.parse( attrs, xhr );
817
if ( ! _.isEqual( attachment.attributes, newAttributes ) ) {
818
attachment.set( newAttributes );
827
_requery: function( refresh ) {
829
if ( this.props.get('query') ) {
830
props = this.props.toJSON();
831
props.cache = ( true !== refresh );
832
this.mirror( Query.get( props ) );
836
* If this collection is sorted by `menuOrder`, recalculates and saves
837
* the menu order to the database.
839
* @returns {undefined|Promise}
841
saveMenuOrder: function() {
842
if ( 'menuOrder' !== this.props.get('orderby') ) {
846
// Removes any uploading attachments, updates each attachment's
847
// menu order, and returns an object with an { id: menuOrder }
848
// mapping to pass to the request.
849
var attachments = this.chain().filter( function( attachment ) {
850
return ! _.isUndefined( attachment.id );
851
}).map( function( attachment, index ) {
852
// Indices start at 1.
854
attachment.set( 'menuOrder', index );
855
return [ attachment.id, index ];
858
if ( _.isEmpty( attachments ) ) {
862
return media.post( 'save-attachment-order', {
863
nonce: media.model.settings.post.nonce,
864
post_id: media.model.settings.post.id,
865
attachments: attachments
871
* Overrides Backbone.Collection.comparator
873
* @param {Backbone.Model} a
874
* @param {Backbone.Model} b
875
* @param {Object} options
876
* @returns {Number} -1 if the first model should come before the second,
877
* 0 if they are of the same rank and
878
* 1 if the first model should come after.
880
comparator: function( a, b, options ) {
881
var key = this.props.get('orderby'),
882
order = this.props.get('order') || 'DESC',
889
if ( 'date' === key || 'modified' === key ) {
894
// If `options.ties` is set, don't enforce the `cid` tiebreaker.
895
if ( options && options.ties ) {
899
return ( 'DESC' === order ) ? compare( a, b, ac, bc ) : compare( b, a, bc, ac );
907
* Note that this client-side searching is *not* equivalent
908
* to our server-side searching.
910
* @param {wp.media.model.Attachment} attachment
912
* @this wp.media.model.Attachments
916
search: function( attachment ) {
917
if ( ! this.props.get('search') ) {
921
return _.any(['title','filename','description','caption','name'], function( key ) {
922
var value = attachment.get( key );
923
return value && -1 !== value.search( this.props.get('search') );
928
* @param {wp.media.model.Attachment} attachment
930
* @this wp.media.model.Attachments
934
type: function( attachment ) {
935
var type = this.props.get('type');
936
return ! type || -1 !== type.indexOf( attachment.get('type') );
940
* @param {wp.media.model.Attachment} attachment
942
* @this wp.media.model.Attachments
946
uploadedTo: function( attachment ) {
947
var uploadedTo = this.props.get('uploadedTo');
948
if ( _.isUndefined( uploadedTo ) ) {
952
return uploadedTo === attachment.get('uploadedTo');
956
* @param {wp.media.model.Attachment} attachment
958
* @this wp.media.model.Attachments
962
status: function( attachment ) {
963
var status = this.props.get('status');
964
if ( _.isUndefined( status ) ) {
968
return status === attachment.get('status');
975
* @member {wp.media.model.Attachments}
977
Attachments.all = new Attachments();
983
* @returns {wp.media.model.Attachments}
985
media.query = function( props ) {
986
return new Attachments( null, {
987
props: _.extend( _.defaults( props || {}, { orderby: 'date' } ), { query: true } )
992
* wp.media.model.Query
994
* A set of attachments that corresponds to a set of consecutively paged
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* queries on the server.
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* Note: Do NOT change this.args after the query has been initialized.
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* @augments wp.media.model.Attachments
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* @augments Backbone.Collection
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Query = media.model.Query = Attachments.extend({
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* @global wp.Uploader
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* @param {Array} [models=[]] Array of models used to populate the collection.
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* @param {Object} [options={}]
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initialize: function( models, options ) {
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options = options || {};
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Attachments.prototype.initialize.apply( this, arguments );
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this.args = options.args;
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this._hasMore = true;
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this.created = new Date();
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this.filters.order = function( attachment ) {
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var orderby = this.props.get('orderby'),
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order = this.props.get('order');
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if ( ! this.comparator ) {
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// We want any items that can be placed before the last
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// item in the set. If we add any items after the last
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// item, then we can't guarantee the set is complete.
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if ( this.length ) {
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return 1 !== this.comparator( attachment, this.last(), { ties: true });
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// Handle the case where there are no items yet and
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// we're sorting for recent items. In that case, we want
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// changes that occurred after we created the query.
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} else if ( 'DESC' === order && ( 'date' === orderby || 'modified' === orderby ) ) {
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return attachment.get( orderby ) >= this.created;
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// If we're sorting by menu order and we have no items,
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// accept any items that have the default menu order (0).
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} else if ( 'ASC' === order && 'menuOrder' === orderby ) {
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return attachment.get( orderby ) === 0;
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// Otherwise, we don't want any items yet.
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// Observe the central `wp.Uploader.queue` collection to watch for
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// new matches for the query.
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// Only observe when a limited number of query args are set. There
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// are no filters for other properties, so observing will result in
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// false positives in those queries.
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allowed = [ 's', 'order', 'orderby', 'posts_per_page', 'post_mime_type', 'post_parent' ];
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if ( wp.Uploader && _( this.args ).chain().keys().difference( allowed ).isEmpty().value() ) {
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this.observe( wp.Uploader.queue );
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* @returns {Boolean}
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hasMore: function() {
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return this._hasMore;
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* @param {Object} [options={}]
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* @returns {Promise}
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more: function( options ) {
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if ( this._more && 'pending' === this._more.state() ) {
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if ( ! this.hasMore() ) {
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return $.Deferred().resolveWith( this ).promise();
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options = options || {};
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options.remove = false;
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return this._more = this.fetch( options ).done( function( resp ) {
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if ( _.isEmpty( resp ) || -1 === this.args.posts_per_page || resp.length < this.args.posts_per_page ) {
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query._hasMore = false;
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* Overrides Backbone.Collection.sync
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* Overrides wp.media.model.Attachments.sync
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* @param {String} method
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* @param {Backbone.Model} model
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* @param {Object} [options={}]
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* @returns {Promise}
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sync: function( method, model, options ) {
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// Overload the read method so Attachment.fetch() functions correctly.
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if ( 'read' === method ) {
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options = options || {};
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options.context = this;
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options.data = _.extend( options.data || {}, {
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action: 'query-attachments',
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post_id: media.model.settings.post.id
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// Clone the args so manipulation is non-destructive.
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args = _.clone( this.args );
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// Determine which page to query.
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if ( -1 !== args.posts_per_page ) {
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args.paged = Math.floor( this.length / args.posts_per_page ) + 1;
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options.data.query = args;
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return media.ajax( options );
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// Otherwise, fall back to Backbone.sync()
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* Call wp.media.model.Attachments.sync or Backbone.sync
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fallback = Attachments.prototype.sync ? Attachments.prototype : Backbone;
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return fallback.sync.apply( this, arguments );
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allowed: [ 'name', 'author', 'date', 'title', 'modified', 'uploadedTo', 'id', 'post__in', 'menuOrder' ],
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'uploadedTo': 'parent',
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'menuOrder': 'menu_order ID'
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'type': 'post_mime_type',
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'perPage': 'posts_per_page',
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'menuOrder': 'menu_order',
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'uploadedTo': 'post_parent',
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'status': 'post_status'
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* @returns {wp.media.model.Query} A new query.
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// Caches query objects so queries can be easily reused.
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* @param {Object} props
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* @param {Object} options
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return function( props, options ) {
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orderby = Query.orderby,
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defaults = Query.defaultProps,
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cache = !! props.cache || _.isUndefined( props.cache );
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// Remove the `query` property. This isn't linked to a query,
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// this *is* the query.
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// Fill default args.
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_.defaults( props, defaults );
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// Normalize the order.
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props.order = props.order.toUpperCase();
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if ( 'DESC' !== props.order && 'ASC' !== props.order ) {
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props.order = defaults.order.toUpperCase();
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// Ensure we have a valid orderby value.
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if ( ! _.contains( orderby.allowed, props.orderby ) ) {
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props.orderby = defaults.orderby;
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// Generate the query `args` object.
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// Correct any differing property names.
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_.each( props, function( value, prop ) {
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if ( _.isNull( value ) ) {
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args[ Query.propmap[ prop ] || prop ] = value;
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// Fill any other default query args.
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_.defaults( args, Query.defaultArgs );
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// `props.orderby` does not always map directly to `args.orderby`.
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// Substitute exceptions specified in orderby.keymap.
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args.orderby = orderby.valuemap[ props.orderby ] || props.orderby;
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// Search the query cache for matches.
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query = _.find( queries, function( query ) {
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return _.isEqual( query.args, args );
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// Otherwise, create a new query and add it to the cache.
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query = new Query( [], _.extend( options || {}, {
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queries.push( query );
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* wp.media.model.Selection
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* Used to manage a selection of attachments in the views.
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* @augments wp.media.model.Attachments
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* @augments Backbone.Collection
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media.model.Selection = Attachments.extend({
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* Refresh the `single` model whenever the selection changes.
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* Binds `single` instead of using the context argument to ensure
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* it receives no parameters.
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* @param {Array} [models=[]] Array of models used to populate the collection.
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* @param {Object} [options={}]
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initialize: function( models, options ) {
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* call 'initialize' directly on the parent class
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Attachments.prototype.initialize.apply( this, arguments );
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this.multiple = options && options.multiple;
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this.on( 'add remove reset', _.bind( this.single, this, false ) );
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* Override the selection's add method.
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* If the workflow does not support multiple
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* selected attachments, reset the selection.
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* Overrides Backbone.Collection.add
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* Overrides wp.media.model.Attachments.add
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* @param {Array} models
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* @param {Object} options
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* @returns {wp.media.model.Attachment[]}
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add: function( models, options ) {
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if ( ! this.multiple ) {
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this.remove( this.models );
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* call 'add' directly on the parent class
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return Attachments.prototype.add.call( this, models, options );
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* Triggered when toggling (clicking on) an attachment in the modal
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* @param {undefined|boolean|wp.media.model.Attachment} model
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* @fires wp.media.model.Selection#selection:single
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* @fires wp.media.model.Selection#selection:unsingle
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* @returns {Backbone.Model}
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single: function( model ) {
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var previous = this._single;
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// If a `model` is provided, use it as the single model.
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this._single = model;
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// If the single model isn't in the selection, remove it.
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if ( this._single && ! this.get( this._single.cid ) ) {
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delete this._single;
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this._single = this._single || this.last();
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// If single has changed, fire an event.
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if ( this._single !== previous ) {
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previous.trigger( 'selection:unsingle', previous, this );
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// If the model was already removed, trigger the collection
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if ( ! this.get( previous.cid ) ) {
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this.trigger( 'selection:unsingle', previous, this );
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if ( this._single ) {
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this._single.trigger( 'selection:single', this._single, this );
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// Return the single model, or the last model as a fallback.
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return this._single;
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// Clean up. Prevents mobile browsers caching
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$(window).on('unload', function(){
added
removed
wp-includes/js/media-models.js
