6a9778959c
Moves the reference to the source collection out of the props model. If it was translated over to a query (which was potentially possible) which then fired an ajax request, jQuery would attempt to serialize an object recursively, which caused an infinite loop and much sadness for my browser. see #21390. git-svn-id: https://develop.svn.wordpress.org/trunk@22737 602fd350-edb4-49c9-b593-d223f7449a82
778 lines
22 KiB
JavaScript
778 lines
22 KiB
JavaScript
window.wp = window.wp || {};
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(function($){
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var Attachment, Attachments, Query, compare, l10n;
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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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// Set the default state.
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frame.state( frame.options.state );
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// Render, attach, and open the frame.
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return frame.render().attach().open();
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};
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_.extend( media, { model: {}, view: {}, controller: {} });
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// Link any localized strings.
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l10n = media.model.l10n = typeof _wpMediaModelsL10n === 'undefined' ? {} : _wpMediaModelsL10n;
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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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_.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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*
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* @param {string} id A string that corresponds to a DOM element with an id prefixed with "tmpl-".
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* For example, "attachment" maps to "tmpl-attachment".
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* @return {function} A function that lazily-compiles the template requested.
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*/
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template: _.memoize( function( id ) {
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var compiled,
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options = {
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evaluate: /<#([\s\S]+?)#>/g,
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interpolate: /\{\{\{([\s\S]+?)\}\}\}/g,
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escape: /\{\{([^\}]+?)\}\}(?!\})/g,
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variable: 'data'
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};
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return function( data ) {
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compiled = compiled || _.template( $( '#tmpl-' + id ).html(), null, options );
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return compiled( data );
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};
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}),
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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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*
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* @param {string} action The slug of the action to fire in WordPress.
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* @param {object} data The data to populate $_POST with.
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* @return {$.promise} A jQuery promise that represents the request.
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*/
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post: function( action, data ) {
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return media.ajax({
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data: _.isObject( action ) ? action : _.extend( data || {}, { action: action })
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});
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},
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/**
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* media.ajax( [action], [options] )
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*
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* Sends a POST request to WordPress.
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*
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* @param {string} action The slug of the action to fire in WordPress.
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* @param {object} options The options passed to jQuery.ajax.
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* @return {$.promise} A jQuery promise that represents the request.
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*/
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ajax: function( action, options ) {
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if ( _.isObject( action ) ) {
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options = action;
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} else {
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options = options || {};
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options.data = _.extend( options.data || {}, { action: action });
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}
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options = _.defaults( options || {}, {
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type: 'POST',
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url: ajaxurl,
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context: this
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});
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return $.Deferred( function( deferred ) {
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// Transfer success/error callbacks.
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if ( options.success )
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deferred.done( options.success );
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if ( options.error )
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deferred.fail( options.error );
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delete options.success;
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delete options.error;
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// Use with PHP's wp_send_json_success() and wp_send_json_error()
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$.ajax( options ).done( function( response ) {
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if ( _.isObject( response ) && ! _.isUndefined( response.success ) )
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deferred[ response.success ? 'resolveWith' : 'rejectWith' ]( this, [response.data] );
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else
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deferred.rejectWith( this, [response] );
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}).fail( function() {
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deferred.rejectWith( this, arguments );
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});
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}).promise();
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},
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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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});
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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.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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// 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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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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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: l10n.saveAttachmentNonce
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});
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// Record the values of the changed attributes.
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if ( options.changes ) {
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_.each( options.changes, function( value, key ) {
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options.changes[ key ] = this.get( key );
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}, this );
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options.data.changes = options.changes;
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delete options.changes;
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}
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return media.ajax( options );
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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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return media.post( 'save-attachment-compat', _.defaults({
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id: this.id,
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nonce: l10n.saveAttachmentNonce
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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: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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this.props.on( 'change:search', this._changeSearch, this );
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this.props.on( 'change:type', this._changeType, 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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_changeFilteredProp: function( prop, model, term ) {
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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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if ( term && ! this.filters[ prop ] )
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this.filters[ prop ] = Attachments.filters[ prop ];
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else if ( ! term && this.filters[ prop ] === Attachments.filters[ prop ] )
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delete this.filters[ prop ];
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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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_changeSearch: function( model, term ) {
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return this._changeFilteredProp( 'search', model, term );
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},
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_changeType: function( model, term ) {
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return this._changeFilteredProp( 'type', model, term );
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},
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validator: function( attachment ) {
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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.getByCid( attachment.cid );
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// Only retain the `silent` option.
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options = {
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silent: options && options.silent
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};
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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 ) {
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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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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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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;
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this.unmirror();
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this.mirroring = attachments;
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this.reset( attachments.models );
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attachments.on( 'add', this._mirrorAdd, this );
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attachments.on( 'remove', this._mirrorRemove, this );
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attachments.on( 'reset', this._mirrorReset, 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.mirroring.off( 'add', this._mirrorAdd, this );
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this.mirroring.off( 'remove', this._mirrorRemove, this );
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this.mirroring.off( 'reset', this._mirrorReset, this );
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delete this.mirroring;
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},
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_mirrorAdd: function( attachment, attachments, options ) {
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this.add( attachment, { at: options.index });
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},
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_mirrorRemove: function( attachment ) {
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this.remove( attachment );
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},
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_mirrorReset: function( attachments ) {
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this.reset( attachments.models );
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},
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more: function( options ) {
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if ( this.mirroring && this.mirroring.more )
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return this.mirroring.more( options );
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return $.Deferred().resolve().promise();
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},
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parse: function( resp, xhr ) {
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return _.map( resp, function( attrs ) {
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var attachment = Attachment.get( attrs.id );
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return attachment.set( attachment.parse( attrs, xhr ) );
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});
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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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}, {
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comparator: function( a, b ) {
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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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return ( 'DESC' === order ) ? compare( a, b, ac, bc ) : compare( b, a, bc, ac );
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},
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filters: {
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// Note that this client-side searching is *not* equivalent
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// to our server-side searching.
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search: function( attachment ) {
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if ( ! this.props.get('search') )
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return true;
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return _.any(['title','filename','description','caption','name'], function( key ) {
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var value = attachment.get( key );
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return value && -1 !== value.search( this.props.get('search') );
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}, this );
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},
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type: function( attachment ) {
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var type = this.props.get('type');
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if ( ! type )
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return true;
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return -1 !== type.indexOf( attachment.get('type') );
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}
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}
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});
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Attachments.all = new Attachments();
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/**
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* wp.media.query
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*/
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media.query = function( props ) {
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return new Attachments( null, {
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props: _.extend( _.defaults( props || {}, { orderby: 'date' } ), { query: true } )
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});
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};
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/**
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* wp.media.model.Query
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*
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* A set of attachments that corresponds to a set of consecutively paged
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* queries on the server.
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*
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* Note: Do NOT change this.args after the query has been initialized.
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* Things will break.
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*/
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Query = media.model.Query = Attachments.extend({
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initialize: function( models, options ) {
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var allowed;
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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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if ( ! this.comparator )
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return true;
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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 ) {
|
|
return 1 !== this.comparator( attachment, this.last() );
|
|
|
|
// 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' === this.args.order && ( 'date' === this.args.orderby || 'modified' === this.args.orderby ) ) {
|
|
return attachment.get( this.args.orderby ) >= this.created;
|
|
}
|
|
|
|
// 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' ];
|
|
if ( wp.Uploader && _( this.args ).chain().keys().difference( allowed ).isEmpty().value() )
|
|
this.observe( wp.Uploader.queue );
|
|
},
|
|
|
|
more: function( options ) {
|
|
var query = this;
|
|
|
|
if ( this._more && 'pending' === this._more.state() )
|
|
return this._more;
|
|
|
|
if ( ! this.hasMore )
|
|
return $.Deferred().resolve().promise();
|
|
|
|
options = options || {};
|
|
options.add = true;
|
|
|
|
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'
|
|
});
|
|
|
|
// 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;
|
|
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' ],
|
|
valuemap: {
|
|
'id': 'ID',
|
|
'uploadedTo': 'parent'
|
|
}
|
|
},
|
|
|
|
propmap: {
|
|
'search': 's',
|
|
'type': 'post_mime_type',
|
|
'parent': 'post_parent',
|
|
'perPage': 'posts_per_page'
|
|
},
|
|
|
|
// 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 ) {
|
|
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 ) {
|
|
models = _.isArray( models ) && models.length ? _.first( models ) : models;
|
|
this.clear( options );
|
|
}
|
|
|
|
return Attachments.prototype.add.call( this, models, options );
|
|
},
|
|
|
|
// Removes all models from the selection.
|
|
clear: function( options ) {
|
|
this.remove( this.models, options ).single();
|
|
return this;
|
|
},
|
|
|
|
// Override the selection's reset method.
|
|
// Always direct items through add and remove,
|
|
// as we need them to fire.
|
|
reset: function( models, options ) {
|
|
this.clear( options ).add( models, options ).single();
|
|
return this;
|
|
},
|
|
|
|
// Create selection.has, which determines if a model
|
|
// exists in the collection based on cid and id,
|
|
// instead of direct comparison.
|
|
has: function( attachment ) {
|
|
return !! ( this.getByCid( attachment.cid ) || this.get( attachment.id ) );
|
|
},
|
|
|
|
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.has( this._single ) )
|
|
delete this._single;
|
|
|
|
this._single = this._single || this.last();
|
|
|
|
// If single has changed, fire an event.
|
|
if ( this._single !== previous ) {
|
|
if ( this._single )
|
|
this._single.trigger( 'selection:single', this._single, this );
|
|
if ( previous )
|
|
previous.trigger( 'selection:unsingle', previous, this );
|
|
}
|
|
|
|
// Return the single model, or the last model as a fallback.
|
|
return this._single;
|
|
}
|
|
});
|
|
|
|
}(jQuery)); |