mirror of
https://github.com/WordPress/WordPress.git
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6a4d212138
git-svn-id: http://core.svn.wordpress.org/trunk@24369 1a063a9b-81f0-0310-95a4-ce76da25c4cd
864 lines
24 KiB
JavaScript
864 lines
24 KiB
JavaScript
window.wp = window.wp || {};
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(function($){
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var Attachment, Attachments, Query, compare, l10n, media, bindSyncEvents;
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/**
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* wp.media( attributes )
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*
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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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*
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* @param {object} attributes The properties passed to the main media controller.
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* @return {object} A media workflow.
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*/
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media = wp.media = function( attributes ) {
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var MediaFrame = media.view.MediaFrame,
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frame;
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if ( ! MediaFrame )
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return;
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attributes = _.defaults( attributes || {}, {
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frame: 'select'
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});
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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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delete attributes.frame;
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return frame;
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};
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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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// Link any settings.
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media.model.settings = l10n.settings || {};
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delete l10n.settings;
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/**
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* ========================================================================
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* UTILITIES
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* ========================================================================
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*/
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/**
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* A basic comparator.
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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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*/
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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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else
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return a > b ? -1 : 1;
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};
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// Ensures the 'sync' and 'error' events are always
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// correctly triggered when overloading `Backbone.sync`.
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bindSyncEvents = function( model, options ) {
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var success = options.success,
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error = options.error;
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options.success = function( resp ) {
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if ( success )
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success( resp );
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model.trigger( 'sync', model, resp, options );
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};
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options.error = function( xhr ) {
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if ( error )
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error( xhr );
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model.trigger( 'error', model, xhr, options );
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};
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return options;
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};
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_.extend( media, {
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/**
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* media.template( id )
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*
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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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*/
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template: wp.template,
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/**
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* media.post( [action], [data] )
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*
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* Sends a POST request to WordPress.
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* See wp.xhr.post() in `wp-includes/js/wp-util.js`.
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*/
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post: wp.xhr.post,
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/**
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* media.ajax( [action], [options] )
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*
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* Sends an XHR request to WordPress.
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* See wp.xhr.send() in `wp-includes/js/wp-util.js`.
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*/
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ajax: wp.xhr.send,
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// Scales a set of dimensions to fit within bounding 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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constraint;
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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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}
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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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return {
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width : maxWidth,
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height: Math.round( maxWidth * height / width )
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};
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} else if ( 'height' === constraint && height > maxHeight ) {
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return {
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width : Math.round( maxHeight * width / height ),
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height: maxHeight
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};
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} else {
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return {
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width : width,
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height: height
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};
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}
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},
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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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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;
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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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/**
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* ========================================================================
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* MODELS
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* ========================================================================
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*/
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/**
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* wp.media.attachment
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*/
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media.attachment = function( id ) {
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return Attachment.get( id );
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};
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/**
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* wp.media.model.Attachment
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*/
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Attachment = media.model.Attachment = Backbone.Model.extend({
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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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id: this.id
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});
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bindSyncEvents( model, options );
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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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id: this.id,
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nonce: this.get('nonces').update,
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post_id: media.model.settings.post.id
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});
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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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}, this );
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}
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bindSyncEvents( model, options );
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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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id: this.id,
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_wpnonce: this.get('nonces')['delete']
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});
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bindSyncEvents( model, options );
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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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});
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// Otherwise, fall back to `Backbone.sync()`.
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} else {
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return Backbone.Model.prototype.sync.apply( this, arguments );
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}
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},
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parse: function( resp, xhr ) {
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if ( ! resp )
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return resp;
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// Convert date strings into Date objects.
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resp.date = new Date( resp.date );
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resp.modified = new Date( resp.modified );
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return resp;
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},
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saveCompat: function( data, options ) {
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var model = this;
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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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id: this.id,
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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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});
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}
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}, {
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create: function( attrs ) {
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return Attachments.all.push( attrs );
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},
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get: _.memoize( function( id, attachment ) {
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return Attachments.all.push( attachment || { id: id } );
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})
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});
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/**
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* wp.media.model.Attachments
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*/
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Attachments = media.model.Attachments = Backbone.Collection.extend({
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model: Attachment,
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initialize: function( models, options ) {
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options = options || {};
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this.props = new Backbone.Model();
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this.filters = options.filters || {};
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// Bind default `change` events to the `props` model.
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this.props.on( 'change', this._changeFilteredProps, this );
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this.props.on( 'change:order', this._changeOrder, this );
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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.
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this.props.set( _.defaults( options.props || {} ) );
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// Observe another `Attachments` collection if one is provided.
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if ( options.observe )
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this.observe( options.observe );
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},
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// Automatically sort the collection when the order changes.
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_changeOrder: function( model, order ) {
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if ( this.comparator )
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this.sort();
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},
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// Set the default comparator only when the `orderby` property is set.
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_changeOrderby: function( model, orderby ) {
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// If a different comparator is defined, bail.
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if ( this.comparator && this.comparator !== Attachments.comparator )
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return;
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if ( orderby && 'post__in' !== orderby )
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this.comparator = Attachments.comparator;
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else
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delete this.comparator;
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},
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// If the `query` property is set to true, query the server using
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// the `props` values, and sync the results to this collection.
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_changeQuery: function( model, query ) {
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if ( query ) {
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this.props.on( 'change', this._requery, this );
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this._requery();
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} else {
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this.props.off( 'change', this._requery, this );
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}
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},
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_changeFilteredProps: function( model, options ) {
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// If this is a query, updating the collection will be handled by
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// `this._requery()`.
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if ( this.props.get('query') )
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return;
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var changed = _.chain( model.changed ).map( function( t, prop ) {
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var filter = Attachments.filters[ prop ],
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term = model.get( prop );
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if ( ! filter )
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return;
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if ( term && ! this.filters[ prop ] )
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this.filters[ prop ] = filter;
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else if ( ! term && this.filters[ prop ] === filter )
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delete this.filters[ prop ];
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else
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return;
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// Record the change.
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return true;
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}, this ).any().value();
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if ( ! changed )
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return;
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// If no `Attachments` model is provided to source the searches
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// from, then automatically generate a source from the existing
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// models.
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if ( ! this._source )
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this._source = new Attachments( this.models );
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this.reset( this._source.filter( this.validator, this ) );
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},
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validateDestroyed: false,
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validator: function( attachment ) {
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if ( ! this.validateDestroyed && attachment.destroyed )
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return false;
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return _.all( this.filters, function( filter, key ) {
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return !! filter.call( this, attachment );
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}, this );
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},
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validate: function( attachment, options ) {
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var valid = this.validator( attachment ),
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hasAttachment = !! this.get( attachment.cid );
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if ( ! valid && hasAttachment )
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this.remove( attachment, options );
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else if ( valid && ! hasAttachment )
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this.add( attachment, options );
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return this;
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},
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validateAll: function( attachments, options ) {
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options = options || {};
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_.each( attachments.models, function( attachment ) {
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this.validate( attachment, { silent: true });
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}, this );
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if ( ! options.silent )
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this.trigger( 'reset', this, options );
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return this;
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},
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observe: function( attachments ) {
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this.observers = this.observers || [];
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this.observers.push( attachments );
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attachments.on( 'add change remove', this._validateHandler, this );
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attachments.on( 'reset', this._validateAllHandler, this );
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this.validateAll( attachments );
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return this;
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},
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unobserve: function( attachments ) {
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if ( attachments ) {
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attachments.off( null, null, this );
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this.observers = _.without( this.observers, attachments );
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} else {
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_.each( this.observers, function( attachments ) {
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attachments.off( null, null, this );
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}, this );
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delete this.observers;
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}
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return this;
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},
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_validateHandler: function( attachment, attachments, options ) {
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// If we're not mirroring this `attachments` collection,
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// only retain the `silent` option.
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options = attachments === this.mirroring ? options : {
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silent: options && options.silent
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};
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return this.validate( attachment, options );
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},
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_validateAllHandler: function( attachments, options ) {
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return this.validateAll( attachments, options );
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},
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mirror: function( attachments ) {
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if ( this.mirroring && this.mirroring === attachments )
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return this;
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this.unmirror();
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this.mirroring = attachments;
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// Clear the collection silently. A `reset` event will be fired
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// when `observe()` calls `validateAll()`.
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this.reset( [], { silent: true } );
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this.observe( attachments );
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return this;
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},
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unmirror: function() {
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if ( ! this.mirroring )
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return;
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this.unobserve( this.mirroring );
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delete this.mirroring;
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},
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more: function( options ) {
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var deferred = $.Deferred(),
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mirroring = this.mirroring,
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attachments = this;
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if ( ! mirroring || ! mirroring.more )
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return deferred.resolveWith( this ).promise();
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// If we're mirroring another collection, forward `more` to
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// the mirrored collection. Account for a race condition by
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// checking if we're still mirroring that collection when
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// the request resolves.
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mirroring.more( options ).done( function() {
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if ( this === attachments.mirroring )
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deferred.resolveWith( this );
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});
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return deferred.promise();
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},
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hasMore: function() {
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return this.mirroring ? this.mirroring.hasMore() : false;
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},
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_requery: function() {
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if ( this.props.get('query') )
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this.mirror( Query.get( this.props.toJSON() ) );
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},
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// If this collection is sorted by `menuOrder`, recalculates and saves
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// the menu order to the database.
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saveMenuOrder: function() {
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if ( 'menuOrder' !== this.props.get('orderby') )
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return;
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// Removes any uploading attachments, updates each attachment's
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// menu order, and returns an object with an { id: menuOrder }
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// mapping to pass to the request.
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var attachments = this.chain().filter( function( attachment ) {
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return ! _.isUndefined( attachment.id );
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}).map( function( attachment, index ) {
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// Indices start at 1.
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index = index + 1;
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attachment.set( 'menuOrder', index );
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return [ attachment.id, index ];
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}).object().value();
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if ( _.isEmpty( attachments ) )
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return;
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return media.post( 'save-attachment-order', {
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nonce: media.model.settings.post.nonce,
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post_id: media.model.settings.post.id,
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attachments: attachments
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});
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}
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}, {
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comparator: function( a, b, options ) {
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var key = this.props.get('orderby'),
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order = this.props.get('order') || 'DESC',
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ac = a.cid,
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bc = b.cid;
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a = a.get( key );
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b = b.get( key );
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if ( 'date' === key || 'modified' === key ) {
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a = a || new Date();
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b = b || new Date();
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}
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// If `options.ties` is set, don't enforce the `cid` tiebreaker.
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if ( options && options.ties )
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ac = bc = null;
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return ( 'DESC' === order ) ? compare( a, b, ac, bc ) : compare( b, a, bc, ac );
|
|
},
|
|
|
|
filters: {
|
|
// Note that this client-side searching is *not* equivalent
|
|
// to our server-side searching.
|
|
search: function( attachment ) {
|
|
if ( ! this.props.get('search') )
|
|
return true;
|
|
|
|
return _.any(['title','filename','description','caption','name'], function( key ) {
|
|
var value = attachment.get( key );
|
|
return value && -1 !== value.search( this.props.get('search') );
|
|
}, this );
|
|
},
|
|
|
|
type: function( attachment ) {
|
|
var type = this.props.get('type');
|
|
return ! type || -1 !== type.indexOf( attachment.get('type') );
|
|
},
|
|
|
|
uploadedTo: function( attachment ) {
|
|
var uploadedTo = this.props.get('uploadedTo');
|
|
if ( _.isUndefined( uploadedTo ) )
|
|
return true;
|
|
|
|
return uploadedTo === attachment.get('uploadedTo');
|
|
}
|
|
}
|
|
});
|
|
|
|
Attachments.all = new Attachments();
|
|
|
|
/**
|
|
* wp.media.query
|
|
*/
|
|
media.query = function( props ) {
|
|
return new Attachments( null, {
|
|
props: _.extend( _.defaults( props || {}, { orderby: 'date' } ), { query: true } )
|
|
});
|
|
};
|
|
|
|
/**
|
|
* wp.media.model.Query
|
|
*
|
|
* A set of attachments that corresponds to a set of consecutively paged
|
|
* queries on the server.
|
|
*
|
|
* Note: Do NOT change this.args after the query has been initialized.
|
|
* Things will break.
|
|
*/
|
|
Query = media.model.Query = Attachments.extend({
|
|
initialize: function( models, options ) {
|
|
var allowed;
|
|
|
|
options = options || {};
|
|
Attachments.prototype.initialize.apply( this, arguments );
|
|
|
|
this.args = options.args;
|
|
this._hasMore = true;
|
|
this.created = new Date();
|
|
|
|
this.filters.order = function( attachment ) {
|
|
var orderby = this.props.get('orderby'),
|
|
order = this.props.get('order');
|
|
|
|
if ( ! this.comparator )
|
|
return true;
|
|
|
|
// We want any items that can be placed before the last
|
|
// item in the set. If we add any items after the last
|
|
// item, then we can't guarantee the set is complete.
|
|
if ( this.length ) {
|
|
return 1 !== this.comparator( attachment, this.last(), { ties: true });
|
|
|
|
// Handle the case where there are no items yet and
|
|
// we're sorting for recent items. In that case, we want
|
|
// changes that occurred after we created the query.
|
|
} else if ( 'DESC' === order && ( 'date' === orderby || 'modified' === orderby ) ) {
|
|
return attachment.get( orderby ) >= this.created;
|
|
|
|
// If we're sorting by menu order and we have no items,
|
|
// accept any items that have the default menu order (0).
|
|
} else if ( 'ASC' === order && 'menuOrder' === orderby ) {
|
|
return attachment.get( orderby ) === 0;
|
|
}
|
|
|
|
// Otherwise, we don't want any items yet.
|
|
return false;
|
|
};
|
|
|
|
// Observe the central `wp.Uploader.queue` collection to watch for
|
|
// new matches for the query.
|
|
//
|
|
// Only observe when a limited number of query args are set. There
|
|
// are no filters for other properties, so observing will result in
|
|
// false positives in those queries.
|
|
allowed = [ 's', 'order', 'orderby', 'posts_per_page', 'post_mime_type', 'post_parent' ];
|
|
if ( wp.Uploader && _( this.args ).chain().keys().difference( allowed ).isEmpty().value() )
|
|
this.observe( wp.Uploader.queue );
|
|
},
|
|
|
|
hasMore: function() {
|
|
return this._hasMore;
|
|
},
|
|
|
|
more: function( options ) {
|
|
var query = this;
|
|
|
|
if ( this._more && 'pending' === this._more.state() )
|
|
return this._more;
|
|
|
|
if ( ! this.hasMore() )
|
|
return $.Deferred().resolveWith( this ).promise();
|
|
|
|
options = options || {};
|
|
options.remove = false;
|
|
|
|
return this._more = this.fetch( options ).done( function( resp ) {
|
|
if ( _.isEmpty( resp ) || -1 === this.args.posts_per_page || resp.length < this.args.posts_per_page )
|
|
query._hasMore = false;
|
|
});
|
|
},
|
|
|
|
sync: function( method, model, options ) {
|
|
var fallback;
|
|
|
|
// Overload the read method so Attachment.fetch() functions correctly.
|
|
if ( 'read' === method ) {
|
|
options = options || {};
|
|
options.context = this;
|
|
options.data = _.extend( options.data || {}, {
|
|
action: 'query-attachments',
|
|
post_id: media.model.settings.post.id
|
|
});
|
|
|
|
// Clone the args so manipulation is non-destructive.
|
|
args = _.clone( this.args );
|
|
|
|
// Determine which page to query.
|
|
if ( -1 !== args.posts_per_page )
|
|
args.paged = Math.floor( this.length / args.posts_per_page ) + 1;
|
|
|
|
options.data.query = args;
|
|
bindSyncEvents( model, options );
|
|
return media.ajax( options );
|
|
|
|
// Otherwise, fall back to Backbone.sync()
|
|
} else {
|
|
fallback = Attachments.prototype.sync ? Attachments.prototype : Backbone;
|
|
return fallback.sync.apply( this, arguments );
|
|
}
|
|
}
|
|
}, {
|
|
defaultProps: {
|
|
orderby: 'date',
|
|
order: 'DESC'
|
|
},
|
|
|
|
defaultArgs: {
|
|
posts_per_page: 40
|
|
},
|
|
|
|
orderby: {
|
|
allowed: [ 'name', 'author', 'date', 'title', 'modified', 'uploadedTo', 'id', 'post__in', 'menuOrder' ],
|
|
valuemap: {
|
|
'id': 'ID',
|
|
'uploadedTo': 'parent',
|
|
'menuOrder': 'menu_order ID'
|
|
}
|
|
},
|
|
|
|
propmap: {
|
|
'search': 's',
|
|
'type': 'post_mime_type',
|
|
'perPage': 'posts_per_page',
|
|
'menuOrder': 'menu_order',
|
|
'uploadedTo': 'post_parent'
|
|
},
|
|
|
|
// Caches query objects so queries can be easily reused.
|
|
get: (function(){
|
|
var queries = [];
|
|
|
|
return function( props, options ) {
|
|
var args = {},
|
|
orderby = Query.orderby,
|
|
defaults = Query.defaultProps,
|
|
query;
|
|
|
|
// Remove the `query` property. This isn't linked to a query,
|
|
// this *is* the query.
|
|
delete props.query;
|
|
|
|
// Fill default args.
|
|
_.defaults( props, defaults );
|
|
|
|
// Normalize the order.
|
|
props.order = props.order.toUpperCase();
|
|
if ( 'DESC' !== props.order && 'ASC' !== props.order )
|
|
props.order = defaults.order.toUpperCase();
|
|
|
|
// Ensure we have a valid orderby value.
|
|
if ( ! _.contains( orderby.allowed, props.orderby ) )
|
|
props.orderby = defaults.orderby;
|
|
|
|
// Generate the query `args` object.
|
|
// Correct any differing property names.
|
|
_.each( props, function( value, prop ) {
|
|
if ( _.isNull( value ) )
|
|
return;
|
|
|
|
args[ Query.propmap[ prop ] || prop ] = value;
|
|
});
|
|
|
|
// Fill any other default query args.
|
|
_.defaults( args, Query.defaultArgs );
|
|
|
|
// `props.orderby` does not always map directly to `args.orderby`.
|
|
// Substitute exceptions specified in orderby.keymap.
|
|
args.orderby = orderby.valuemap[ props.orderby ] || props.orderby;
|
|
|
|
// Search the query cache for matches.
|
|
query = _.find( queries, function( query ) {
|
|
return _.isEqual( query.args, args );
|
|
});
|
|
|
|
// Otherwise, create a new query and add it to the cache.
|
|
if ( ! query ) {
|
|
query = new Query( [], _.extend( options || {}, {
|
|
props: props,
|
|
args: args
|
|
} ) );
|
|
queries.push( query );
|
|
}
|
|
|
|
return query;
|
|
};
|
|
}())
|
|
});
|
|
|
|
/**
|
|
* wp.media.model.Selection
|
|
*
|
|
* Used to manage a selection of attachments in the views.
|
|
*/
|
|
media.model.Selection = Attachments.extend({
|
|
initialize: function( models, options ) {
|
|
Attachments.prototype.initialize.apply( this, arguments );
|
|
this.multiple = options && options.multiple;
|
|
|
|
// Refresh the `single` model whenever the selection changes.
|
|
// Binds `single` instead of using the context argument to ensure
|
|
// it receives no parameters.
|
|
this.on( 'add remove reset', _.bind( this.single, this, false ) );
|
|
},
|
|
|
|
// Override the selection's add method.
|
|
// If the workflow does not support multiple
|
|
// selected attachments, reset the selection.
|
|
add: function( models, options ) {
|
|
if ( ! this.multiple )
|
|
this.remove( this.models );
|
|
|
|
return Attachments.prototype.add.call( this, models, options );
|
|
},
|
|
|
|
single: function( model ) {
|
|
var previous = this._single;
|
|
|
|
// If a `model` is provided, use it as the single model.
|
|
if ( model )
|
|
this._single = model;
|
|
|
|
// If the single model isn't in the selection, remove it.
|
|
if ( this._single && ! this.get( this._single.cid ) )
|
|
delete this._single;
|
|
|
|
this._single = this._single || this.last();
|
|
|
|
// If single has changed, fire an event.
|
|
if ( this._single !== previous ) {
|
|
if ( previous ) {
|
|
previous.trigger( 'selection:unsingle', previous, this );
|
|
|
|
// If the model was already removed, trigger the collection
|
|
// event manually.
|
|
if ( ! this.get( previous.cid ) )
|
|
this.trigger( 'selection:unsingle', previous, this );
|
|
}
|
|
if ( this._single )
|
|
this._single.trigger( 'selection:single', this._single, this );
|
|
}
|
|
|
|
// Return the single model, or the last model as a fallback.
|
|
return this._single;
|
|
}
|
|
});
|
|
|
|
// Clean up. Prevents mobile browsers caching
|
|
$(window).on('unload', function(){
|
|
window.wp = null;
|
|
});
|
|
|
|
}(jQuery)); |