275 lines
9.3 KiB
JavaScript
275 lines
9.3 KiB
JavaScript
/*globals wp, _, Backbone */
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/**
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* wp.media.controller.Library
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*
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* A state for choosing an attachment or group of attachments from the media library.
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*
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* @class
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* @augments wp.media.controller.State
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* @augments Backbone.Model
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* @mixes media.selectionSync
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*
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* @param {object} [attributes] The attributes hash passed to the state.
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* @param {string} [attributes.id=library] Unique identifier.
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* @param {string} [attributes.title=Media library] Title for the state. Displays in the media menu and the frame's title region.
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* @param {wp.media.model.Attachments} [attributes.library] The attachments collection to browse.
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* If one is not supplied, a collection of all attachments will be created.
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* @param {wp.media.model.Selection|object} [attributes.selection] A collection to contain attachment selections within the state.
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* If the 'selection' attribute is a plain JS object,
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* a Selection will be created using its values as the selection instance's `props` model.
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* Otherwise, it will copy the library's `props` model.
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* @param {boolean} [attributes.multiple=false] Whether multi-select is enabled.
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* @param {string} [attributes.content=upload] Initial mode for the content region.
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* Overridden by persistent user setting if 'contentUserSetting' is true.
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* @param {string} [attributes.menu=default] Initial mode for the menu region.
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* @param {string} [attributes.router=browse] Initial mode for the router region.
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* @param {string} [attributes.toolbar=select] Initial mode for the toolbar region.
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* @param {boolean} [attributes.searchable=true] Whether the library is searchable.
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* @param {boolean|string} [attributes.filterable=false] Whether the library is filterable, and if so what filters should be shown.
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* Accepts 'all', 'uploaded', or 'unattached'.
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* @param {boolean} [attributes.sortable=true] Whether the Attachments should be sortable. Depends on the orderby property being set to menuOrder on the attachments collection.
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* @param {boolean} [attributes.autoSelect=true] Whether an uploaded attachment should be automatically added to the selection.
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* @param {boolean} [attributes.describe=false] Whether to offer UI to describe attachments - e.g. captioning images in a gallery.
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* @param {boolean} [attributes.contentUserSetting=true] Whether the content region's mode should be set and persisted per user.
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* @param {boolean} [attributes.syncSelection=true] Whether the Attachments selection should be persisted from the last state.
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*/
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var selectionSync = require( '../utils/selection-sync.js' ),
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State = require( './state.js' ),
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l10n = wp.media.view.l10n,
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getUserSetting = window.getUserSetting,
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setUserSetting = window.setUserSetting,
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Library;
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Library = State.extend({
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defaults: {
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id: 'library',
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title: l10n.mediaLibraryTitle,
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multiple: false,
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content: 'upload',
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menu: 'default',
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router: 'browse',
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toolbar: 'select',
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searchable: true,
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filterable: false,
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sortable: true,
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autoSelect: true,
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describe: false,
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contentUserSetting: true,
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syncSelection: true
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},
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/**
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* If a library isn't provided, query all media items.
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* If a selection instance isn't provided, create one.
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*
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* @since 3.5.0
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*/
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initialize: function() {
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var selection = this.get('selection'),
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props;
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if ( ! this.get('library') ) {
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this.set( 'library', wp.media.query() );
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}
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if ( ! ( selection instanceof wp.media.model.Selection ) ) {
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props = selection;
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if ( ! props ) {
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props = this.get('library').props.toJSON();
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props = _.omit( props, 'orderby', 'query' );
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}
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this.set( 'selection', new wp.media.model.Selection( null, {
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multiple: this.get('multiple'),
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props: props
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}) );
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}
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this.resetDisplays();
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},
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/**
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* @since 3.5.0
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*/
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activate: function() {
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this.syncSelection();
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wp.Uploader.queue.on( 'add', this.uploading, this );
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this.get('selection').on( 'add remove reset', this.refreshContent, this );
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if ( this.get( 'router' ) && this.get('contentUserSetting') ) {
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this.frame.on( 'content:activate', this.saveContentMode, this );
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this.set( 'content', getUserSetting( 'libraryContent', this.get('content') ) );
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}
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},
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/**
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* @since 3.5.0
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*/
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deactivate: function() {
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this.recordSelection();
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this.frame.off( 'content:activate', this.saveContentMode, this );
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// Unbind all event handlers that use this state as the context
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// from the selection.
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this.get('selection').off( null, null, this );
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wp.Uploader.queue.off( null, null, this );
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},
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/**
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* Reset the library to its initial state.
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*
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* @since 3.5.0
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*/
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reset: function() {
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this.get('selection').reset();
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this.resetDisplays();
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this.refreshContent();
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},
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/**
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* Reset the attachment display settings defaults to the site options.
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*
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* If site options don't define them, fall back to a persistent user setting.
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*
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* @since 3.5.0
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*/
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resetDisplays: function() {
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var defaultProps = wp.media.view.settings.defaultProps;
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this._displays = [];
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this._defaultDisplaySettings = {
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align: defaultProps.align || getUserSetting( 'align', 'none' ),
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size: defaultProps.size || getUserSetting( 'imgsize', 'medium' ),
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link: defaultProps.link || getUserSetting( 'urlbutton', 'file' )
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};
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},
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/**
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* Create a model to represent display settings (alignment, etc.) for an attachment.
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*
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* @since 3.5.0
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*
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* @param {wp.media.model.Attachment} attachment
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* @returns {Backbone.Model}
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*/
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display: function( attachment ) {
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var displays = this._displays;
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if ( ! displays[ attachment.cid ] ) {
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displays[ attachment.cid ] = new Backbone.Model( this.defaultDisplaySettings( attachment ) );
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}
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return displays[ attachment.cid ];
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},
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/**
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* Given an attachment, create attachment display settings properties.
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*
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* @since 3.6.0
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*
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* @param {wp.media.model.Attachment} attachment
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* @returns {Object}
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*/
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defaultDisplaySettings: function( attachment ) {
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var settings = this._defaultDisplaySettings;
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if ( settings.canEmbed = this.canEmbed( attachment ) ) {
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settings.link = 'embed';
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}
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return settings;
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},
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/**
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* Whether an attachment can be embedded (audio or video).
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*
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* @since 3.6.0
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*
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* @param {wp.media.model.Attachment} attachment
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* @returns {Boolean}
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*/
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canEmbed: function( attachment ) {
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// If uploading, we know the filename but not the mime type.
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if ( ! attachment.get('uploading') ) {
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var type = attachment.get('type');
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if ( type !== 'audio' && type !== 'video' ) {
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return false;
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}
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}
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return _.contains( wp.media.view.settings.embedExts, attachment.get('filename').split('.').pop() );
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},
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/**
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* If the state is active, no items are selected, and the current
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* content mode is not an option in the state's router (provided
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* the state has a router), reset the content mode to the default.
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*
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* @since 3.5.0
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*/
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refreshContent: function() {
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var selection = this.get('selection'),
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frame = this.frame,
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router = frame.router.get(),
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mode = frame.content.mode();
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if ( this.active && ! selection.length && router && ! router.get( mode ) ) {
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this.frame.content.render( this.get('content') );
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}
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},
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/**
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* Callback handler when an attachment is uploaded.
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*
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* Switch to the Media Library if uploaded from the 'Upload Files' tab.
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*
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* Adds any uploading attachments to the selection.
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*
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* If the state only supports one attachment to be selected and multiple
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* attachments are uploaded, the last attachment in the upload queue will
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* be selected.
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*
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* @since 3.5.0
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*
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* @param {wp.media.model.Attachment} attachment
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*/
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uploading: function( attachment ) {
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var content = this.frame.content;
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if ( 'upload' === content.mode() ) {
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this.frame.content.mode('browse');
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}
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if ( this.get( 'autoSelect' ) ) {
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this.get('selection').add( attachment );
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this.frame.trigger( 'library:selection:add' );
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}
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},
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/**
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* Persist the mode of the content region as a user setting.
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*
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* @since 3.5.0
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*/
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saveContentMode: function() {
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if ( 'browse' !== this.get('router') ) {
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return;
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}
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var mode = this.frame.content.mode(),
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view = this.frame.router.get();
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if ( view && view.get( mode ) ) {
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setUserSetting( 'libraryContent', mode );
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}
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}
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});
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// Make selectionSync available on any Media Library state.
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_.extend( Library.prototype, selectionSync );
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module.exports = Library;
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