634 lines
16 KiB
JavaScript
634 lines
16 KiB
JavaScript
(function($){
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var media = wp.media,
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Attachment = media.model.Attachment,
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Attachments = media.model.Attachments,
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Query = media.model.Query;
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/**
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* ========================================================================
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* CONTROLLERS
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* ========================================================================
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*/
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/**
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* wp.media.controller.Workflow
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*/
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media.controller.Workflow = Backbone.Model.extend({
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defaults: {
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multiple: false
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},
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initialize: function() {
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this.createSelection();
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// Initialize views.
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this.modal = new media.view.Modal({ controller: this });
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this.workspace = new media.view.Workspace({ controller: this });
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},
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createSelection: function() {
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var controller = this;
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// Initialize workflow-specific models.
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this.selection = new Attachments();
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_.extend( this.selection, {
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// Override the selection's add method.
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// If the workflow does not support multiple
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// selected attachments, reset the selection.
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add: function( models, options ) {
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if ( ! controller.get('multiple') ) {
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models = _.isArray( models ) ? _.first( models ) : models;
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this.clear( options );
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}
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return Attachments.prototype.add.call( this, models, options );
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},
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// Removes all models from the selection.
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clear: function( options ) {
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return this.remove( this.models, options );
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},
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// Override the selection's reset method.
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// Always direct items through add and remove,
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// as we need them to fire.
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reset: function( models, options ) {
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return this.clear( options ).add( models, options );
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},
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// Create selection.has, which determines if a model
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// exists in the collection based on cid and id,
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// instead of direct comparison.
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has: function( attachment ) {
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return !! ( this.getByCid( attachment.cid ) || this.get( attachment.id ) );
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}
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});
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},
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render: function() {
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this.workspace.render();
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this.modal.content( this.workspace ).attach();
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return this;
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}
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});
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/**
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* ========================================================================
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* VIEWS
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* ========================================================================
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*/
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/**
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* wp.media.view.Modal
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*/
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media.view.Modal = Backbone.View.extend({
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tagName: 'div',
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template: media.template('media-modal'),
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events: {
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'click .media-modal-backdrop, .media-modal-close' : 'closeHandler'
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},
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initialize: function() {
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this.controller = this.options.controller;
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_.defaults( this.options, {
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title: '',
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container: document.body
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});
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},
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render: function() {
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// Ensure content div exists.
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this.options.$content = this.options.$content || $('<div />');
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// Detach the content element from the DOM to prevent
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// `this.$el.html()` from garbage collecting its events.
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this.options.$content.detach();
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this.$el.html( this.template( this.options ) );
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this.$('.media-modal-content').append( this.options.$content );
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return this;
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},
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attach: function() {
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this.$el.appendTo( this.options.container );
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},
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detach: function() {
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this.$el.detach();
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},
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open: function() {
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this.$el.show();
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},
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close: function() {
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this.$el.hide();
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},
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closeHandler: function( event ) {
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event.preventDefault();
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this.close();
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},
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content: function( $content ) {
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this.options.$content = ( $content instanceof Backbone.View ) ? $content.$el : $content;
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return this.render();
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},
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title: function( title ) {
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this.options.title = title;
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return this.render();
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}
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});
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/**
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* wp.media.view.Toolbar
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*/
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media.view.Toolbar = Backbone.View.extend({
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tagName: 'div',
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className: 'media-toolbar',
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initialize: function() {
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this._views = {};
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this.$primary = $('<div class="media-toolbar-primary" />').prependTo( this.$el );
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this.$secondary = $('<div class="media-toolbar-secondary" />').prependTo( this.$el );
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if ( this.options.items ) {
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_.each( this.options.items, function( view, id ) {
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this.add( id, view, { silent: true } );
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}, this );
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this.render();
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}
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},
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render: function() {
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var views = _.chain( this._views ).sortBy( function( view ) {
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return view.options.priority || 10;
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}).groupBy( function( view ) {
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return ( view.options.priority || 10 ) > 0 ? 'primary' : 'secondary';
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}).value();
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// Make sure to detach the elements we want to reuse.
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// Otherwise, `jQuery.html()` will unbind their events.
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$( _.pluck( this._views, 'el' ) ).detach();
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this.$primary.html( _.pluck( views.primary, 'el' ) );
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this.$secondary.html( _.pluck( views.secondary, 'el' ) );
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return this;
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},
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add: function( id, view, options ) {
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if ( ! ( view instanceof Backbone.View ) ) {
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view.classes = [ id ].concat( view.classes || [] );
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view = new media.view.Button( view ).render();
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}
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this._views[ id ] = view;
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if ( ! options || ! options.silent )
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this.render();
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return this;
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},
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remove: function( id, options ) {
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delete this._views[ id ];
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if ( ! options || ! options.silent )
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this.render();
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return this;
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}
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});
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/**
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* wp.media.view.Button
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*/
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media.view.Button = Backbone.View.extend({
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tagName: 'a',
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className: 'media-button',
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attributes: { href: '#' },
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events: {
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'click': 'click'
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},
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initialize: function() {
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_.defaults( this.options, {
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style: 'secondary',
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text: '',
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classes: []
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});
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},
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render: function() {
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var classes = [ this.className ];
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if ( this.options.style )
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classes.push( 'button-' + this.options.style );
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classes = classes.concat( this.options.classes );
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this.el.className = classes.join(' ');
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this.$el.text( this.options.text );
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return this;
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},
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click: function( event ) {
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event.preventDefault();
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if ( this.options.click )
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this.options.click.apply( this, arguments );
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}
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});
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/**
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* wp.media.view.Workspace
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*/
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media.view.Workspace = Backbone.View.extend({
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tagName: 'div',
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className: 'media-workspace',
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template: media.template('media-workspace'),
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events: {
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'dragenter': 'maybeInitUploader',
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'mouseenter': 'maybeInitUploader'
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},
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initialize: function() {
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this.controller = this.options.controller;
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_.defaults( this.options, {
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selectOne: false,
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uploader: {}
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});
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this.$content = $('<div class="existing-attachments" />');
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// If this supports multiple attachments, initialize the sample toolbar view.
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if ( this.controller.get('multiple') )
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this.initToolbarView();
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this.attachmentsView = new media.view.Attachments({
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controller: this.controller,
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directions: 'Select stuff.',
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collection: new Attachments( null, {
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mirror: media.query()
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})
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});
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this.$content.append( this.attachmentsView.$el );
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// Track uploading attachments.
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this.pending = new Attachments( [], { query: false });
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this.pending.on( 'add remove reset change:percent', function() {
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this.$el.toggleClass( 'uploading', !! this.pending.length );
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if ( ! this.$bar || ! this.pending.length )
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return;
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this.$bar.width( ( this.pending.reduce( function( memo, attachment ) {
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if ( attachment.get('uploading') )
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return memo + ( attachment.get('percent') || 0 );
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else
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return memo + 100;
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}, 0 ) / this.pending.length ) + '%' );
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}, this );
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},
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render: function() {
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this.attachmentsView.render();
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this.$el.html( this.template( this.options ) ).append( this.$content );
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this.$bar = this.$('.media-progress-bar div');
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return this;
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},
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maybeInitUploader: function() {
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var workspace = this;
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// If the uploader already exists or the body isn't in the DOM, bail.
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if ( this.uploader || ! this.$el.closest('body').length )
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return;
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this.uploader = new wp.Uploader( _.extend({
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container: this.$el,
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dropzone: this.$el,
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browser: this.$('.upload-attachments a'),
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added: function( file ) {
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file.attachment = Attachment.create( _.extend({
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file: file,
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uploading: true,
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date: new Date()
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}, _.pick( file, 'loaded', 'size', 'percent' ) ) );
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workspace.pending.add( file.attachment );
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},
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progress: function( file ) {
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file.attachment.set( _.pick( file, 'loaded', 'percent' ) );
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},
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success: function( resp, file ) {
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var complete;
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_.each(['file','loaded','size','uploading','percent'], function( key ) {
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file.attachment.unset( key );
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});
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file.attachment.set( 'id', resp.id );
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Attachment.get( resp.id, file.attachment ).fetch();
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complete = workspace.pending.all( function( attachment ) {
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return ! attachment.get('uploading');
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});
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if ( complete )
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workspace.pending.reset();
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},
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error: function( message, error, file ) {
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file.attachment.destroy();
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}
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}, this.options.uploader ) );
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},
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// Initializes the toolbar view. Currently uses defaults set for
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// inserting media into a post. This should be pulled out into the
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// appropriate workflow when the time comes, but is currently here
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// to test multiple selections.
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initToolbarView: function() {
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this.toolbarView = new media.view.Toolbar({
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items: {
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'selection-preview': new media.view.SelectionPreview({
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controller: this.controller,
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collection: this.controller.selection,
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priority: -40
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}),
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'insert-into-post': {
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style: 'primary',
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text: 'Insert into post',
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priority: 40
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},
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'create-new-gallery': {
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style: 'primary',
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text: 'Create a new gallery',
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priority: 30
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},
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'add-to-gallery': {
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text: 'Add to gallery',
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priority: 20
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}
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}
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});
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this.controller.selection.on( 'add remove', function() {
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this.$el.toggleClass( 'with-toolbar', !! this.controller.selection.length );
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}, this );
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this.$content.append( this.toolbarView.$el );
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}
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});
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/**
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* wp.media.view.Attachments
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*/
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media.view.Attachments = Backbone.View.extend({
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tagName: 'div',
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className: 'attachments',
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template: media.template('attachments'),
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events: {
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'keyup input': 'search'
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},
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initialize: function() {
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this.controller = this.options.controller;
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_.defaults( this.options, {
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refreshSensitivity: 200,
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refreshThreshold: 3
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});
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_.each(['add','remove'], function( method ) {
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this.collection.on( method, function( attachment, attachments, options ) {
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this[ method ]( attachment, options.index );
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}, this );
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}, this );
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this.collection.on( 'reset', this.refresh, this );
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this.$list = $('<ul />');
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this.list = this.$list[0];
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this.scroll = _.chain( this.scroll ).bind( this ).throttle( this.options.refreshSensitivity ).value();
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this.$list.on( 'scroll.attachments', this.scroll );
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},
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render: function() {
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this.$el.html( this.template( this.options ) ).append( this.$list );
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this.refresh();
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return this;
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},
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refresh: function() {
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// If there are no elements, load some.
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if ( ! this.collection.length ) {
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this.collection.more();
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this.$list.empty();
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return this;
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}
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// Otherwise, create all of the Attachment views, and replace
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// the list in a single DOM operation.
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this.$list.html( this.collection.map( function( attachment ) {
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return new media.view.Attachment({
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controller: this.controller,
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model: attachment
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}).render().$el;
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}, this ) );
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// Then, trigger the scroll event to check if we're within the
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// threshold to query for additional attachments.
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this.scroll();
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return this;
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},
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add: function( attachment, index ) {
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var view, children;
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view = new media.view.Attachment({
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controller: this.controller,
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model: attachment
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}).render();
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children = this.$list.children();
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if ( children.length > index )
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children.eq( index ).before( view.$el );
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else
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this.$list.append( view.$el );
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},
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remove: function( attachment, index ) {
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var children = this.$list.children();
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if ( children.length )
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children.eq( index ).detach();
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},
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scroll: function( event ) {
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// @todo: is this still necessary?
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if ( ! this.$list.is(':visible') )
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return;
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if ( this.list.scrollHeight < this.list.scrollTop + ( this.list.clientHeight * this.options.refreshThreshold ) ) {
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this.collection.more();
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}
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},
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search: function( event ) {
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var args = _.clone( this.collection.mirroring.args );
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// Bail if we're currently searching for the same string.
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if ( args.s === event.target.value )
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return;
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if ( event.target.value )
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args.s = event.target.value;
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else
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delete args.s;
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this.collection.mirror( media.query( args ) );
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}
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});
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/**
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* wp.media.view.Attachment
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*/
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media.view.Attachment = Backbone.View.extend({
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tagName: 'li',
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className: 'attachment',
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template: media.template('attachment'),
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events: {
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'click': 'toggleSelection'
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},
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initialize: function() {
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this.controller = this.options.controller;
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this.model.on( 'change:sizes change:uploading', this.render, this );
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this.model.on( 'change:percent', this.progress, this );
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this.model.on( 'add', this.select, this );
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this.model.on( 'remove', this.deselect, this );
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},
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render: function() {
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var attachment = this.model.toJSON(),
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options = {
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thumbnail: 'image' === attachment.type ? attachment.url : attachment.icon,
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uploading: attachment.uploading,
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orientation: attachment.orientation || 'landscape',
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type: attachment.type,
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subtype: attachment.subtype
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};
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// Use the medium image size if possible. If the medium size
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// doesn't exist, then the attachment is too small.
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// In that case, use the attachment itself.
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if ( attachment.sizes && attachment.sizes.medium ) {
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options.orientation = attachment.sizes.medium.orientation;
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options.thumbnail = attachment.sizes.medium.url;
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}
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this.$el.html( this.template( options ) );
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if ( attachment.uploading )
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this.$bar = this.$('.media-progress-bar div');
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else
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delete this.$bar;
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// Check if the model is selected.
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if ( this.controller.selection.has( this.model ) )
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this.select();
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return this;
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},
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progress: function() {
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if ( this.$bar && this.$bar.length )
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this.$bar.width( this.model.get('percent') + '%' );
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},
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toggleSelection: function( event ) {
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var selection = this.controller.selection;
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selection[ selection.has( this.model ) ? 'remove' : 'add' ]( this.model );
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},
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select: function( model, collection ) {
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// If a collection is provided, check if it's the selection.
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// If it's not, bail; we're in another selection's event loop.
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if ( collection && collection !== this.controller.selection )
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return;
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this.$el.addClass('selected');
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},
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deselect: function( model, collection ) {
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// If a collection is provided, check if it's the selection.
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// If it's not, bail; we're in another selection's event loop.
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if ( collection && collection !== this.controller.selection )
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return;
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this.$el.removeClass('selected');
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}
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});
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/**
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* wp.media.view.SelectionPreview
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*/
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media.view.SelectionPreview = Backbone.View.extend({
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tagName: 'div',
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className: 'selection-preview',
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template: media.template('media-selection-preview'),
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events: {
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'click .clear-selection': 'clear'
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},
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initialize: function() {
|
|
this.controller = this.options.controller;
|
|
this.collection.on( 'add change:url remove', this.render, this );
|
|
this.render();
|
|
},
|
|
|
|
render: function() {
|
|
var options = {},
|
|
first, sizes, amount;
|
|
|
|
// If nothing is selected, display nothing.
|
|
if ( ! this.collection.length ) {
|
|
this.$el.empty();
|
|
return this;
|
|
}
|
|
|
|
options.count = this.collection.length;
|
|
first = this.collection.first();
|
|
sizes = first.get('sizes');
|
|
|
|
if ( 'image' === first.get('type') )
|
|
options.thumbnail = ( sizes && sizes.thumbnail ) ? sizes.thumbnail.url : first.get('url');
|
|
else
|
|
options.thumbnail = first.get('icon');
|
|
|
|
this.$el.html( this.template( options ) );
|
|
return this;
|
|
},
|
|
|
|
clear: function( event ) {
|
|
event.preventDefault();
|
|
this.collection.clear();
|
|
}
|
|
});
|
|
}(jQuery)); |