/**

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* @output wp-admin/js/customize-widgets.js

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*/

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/* global _wpCustomizeWidgetsSettings */

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(function( wp, $ ){

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if ( ! wp || ! wp.customize ) { return; }

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// Set up our namespace...

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var api = wp.customize,

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l10n;

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/**

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* @namespace wp.customize.Widgets

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*/

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api.Widgets = api.Widgets || {};

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api.Widgets.savedWidgetIds = {};

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// Link settings.

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api.Widgets.data = _wpCustomizeWidgetsSettings || {};

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l10n = api.Widgets.data.l10n;

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/**

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* wp.customize.Widgets.WidgetModel

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*

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* A single widget model.

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*

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* @class wp.customize.Widgets.WidgetModel

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* @augments Backbone.Model

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*/

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api.Widgets.WidgetModel = Backbone.Model.extend(/** @lends wp.customize.Widgets.WidgetModel.prototype */{

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id: null,

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temp_id: null,

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classname: null,

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control_tpl: null,

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description: null,

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is_disabled: null,

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is_multi: null,

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multi_number: null,

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name: null,

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id_base: null,

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transport: null,

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params: [],

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width: null,

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height: null,

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search_matched: true

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});

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/**

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* wp.customize.Widgets.WidgetCollection

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*

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* Collection for widget models.

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*

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* @class wp.customize.Widgets.WidgetCollection

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* @augments Backbone.Collection

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*/

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api.Widgets.WidgetCollection = Backbone.Collection.extend(/** @lends wp.customize.Widgets.WidgetCollection.prototype */{

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model: api.Widgets.WidgetModel,

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// Controls searching on the current widget collection

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// and triggers an update event.

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doSearch: function( value ) {

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// Don't do anything if we've already done this search.

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// Useful because the search handler fires multiple times per keystroke.

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if ( this.terms === value ) {

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return;

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}

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// Updates terms with the value passed.

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this.terms = value;

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// If we have terms, run a search...

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if ( this.terms.length > 0 ) {

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this.search( this.terms );

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}

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// If search is blank, set all the widgets as they matched the search to reset the views.

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if ( this.terms === '' ) {

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this.each( function ( widget ) {

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widget.set( 'search_matched', true );

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} );

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}

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},

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// Performs a search within the collection.

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// @uses RegExp

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search: function( term ) {

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var match, haystack;

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// Escape the term string for RegExp meta characters.

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term = term.replace( /[-\/\\^$*+?.()|[\]{}]/g, '\\$&' );

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// Consider spaces as word delimiters and match the whole string

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// so matching terms can be combined.

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term = term.replace( / /g, ')(?=.*' );

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match = new RegExp( '^(?=.*' + term + ').+', 'i' );

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this.each( function ( data ) {

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haystack = [ data.get( 'name' ), data.get( 'description' ) ].join( ' ' );

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data.set( 'search_matched', match.test( haystack ) );

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} );

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}

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});

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api.Widgets.availableWidgets = new api.Widgets.WidgetCollection( api.Widgets.data.availableWidgets );

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/**

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* wp.customize.Widgets.SidebarModel

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*

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* A single sidebar model.

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*

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* @class wp.customize.Widgets.SidebarModel

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* @augments Backbone.Model

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*/

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api.Widgets.SidebarModel = Backbone.Model.extend(/** @lends wp.customize.Widgets.SidebarModel.prototype */{

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after_title: null,

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after_widget: null,

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before_title: null,

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before_widget: null,

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'class': null,

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description: null,

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id: null,

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name: null,

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is_rendered: false

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});

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/**

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* wp.customize.Widgets.SidebarCollection

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*

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* Collection for sidebar models.

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*

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* @class wp.customize.Widgets.SidebarCollection

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* @augments Backbone.Collection

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*/

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api.Widgets.SidebarCollection = Backbone.Collection.extend(/** @lends wp.customize.Widgets.SidebarCollection.prototype */{

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model: api.Widgets.SidebarModel

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});

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api.Widgets.registeredSidebars = new api.Widgets.SidebarCollection( api.Widgets.data.registeredSidebars );

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api.Widgets.AvailableWidgetsPanelView = wp.Backbone.View.extend(/** @lends wp.customize.Widgets.AvailableWidgetsPanelView.prototype */{

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el: '#available-widgets',

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events: {

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'input #widgets-search': 'search',

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'focus .widget-tpl' : 'focus',

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'click .widget-tpl' : '_submit',

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'keypress .widget-tpl' : '_submit',

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'keydown' : 'keyboardAccessible'

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},

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// Cache current selected widget.

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selected: null,

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// Cache sidebar control which has opened panel.

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currentSidebarControl: null,

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$search: null,

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$clearResults: null,

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searchMatchesCount: null,

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/**

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* View class for the available widgets panel.

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*

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* @constructs wp.customize.Widgets.AvailableWidgetsPanelView

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* @augments wp.Backbone.View

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*/

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initialize: function() {

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var self = this;

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this.$search = $( '#widgets-search' );

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this.$clearResults = this.$el.find( '.clear-results' );

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_.bindAll( this, 'close' );

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this.listenTo( this.collection, 'change', this.updateList );

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this.updateList();

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// Set the initial search count to the number of available widgets.

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this.searchMatchesCount = this.collection.length;

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/*

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* If the available widgets panel is open and the customize controls

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* are interacted with (i.e. available widgets panel is blurred) then

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* close the available widgets panel. Also close on back button click.

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*/

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$( '#customize-controls, #available-widgets .customize-section-title' ).on( 'click keydown', function( e ) {

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var isAddNewBtn = $( e.target ).is( '.add-new-widget, .add-new-widget *' );

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if ( $( 'body' ).hasClass( 'adding-widget' ) && ! isAddNewBtn ) {

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self.close();

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}

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} );

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// Clear the search results and trigger an `input` event to fire a new search.

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this.$clearResults.on( 'click', function() {

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self.$search.val( '' ).focus().trigger( 'input' );

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} );

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// Close the panel if the URL in the preview changes.

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api.previewer.bind( 'url', this.close );

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},

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/**

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* Performs a search and handles selected widget.

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*/

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search: _.debounce( function( event ) {

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var firstVisible;

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this.collection.doSearch( event.target.value );

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// Update the search matches count.

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this.updateSearchMatchesCount();

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// Announce how many search results.

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this.announceSearchMatches();

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// Remove a widget from being selected if it is no longer visible.

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if ( this.selected && ! this.selected.is( ':visible' ) ) {

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this.selected.removeClass( 'selected' );

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this.selected = null;

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}

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// If a widget was selected but the filter value has been cleared out, clear selection.

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if ( this.selected && ! event.target.value ) {

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this.selected.removeClass( 'selected' );

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this.selected = null;

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}

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// If a filter has been entered and a widget hasn't been selected, select the first one shown.

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if ( ! this.selected && event.target.value ) {

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firstVisible = this.$el.find( '> .widget-tpl:visible:first' );

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if ( firstVisible.length ) {

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this.select( firstVisible );

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}

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}

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// Toggle the clear search results button.

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if ( '' !== event.target.value ) {

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this.$clearResults.addClass( 'is-visible' );

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} else if ( '' === event.target.value ) {

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this.$clearResults.removeClass( 'is-visible' );

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}

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// Set a CSS class on the search container when there are no search results.

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if ( ! this.searchMatchesCount ) {

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this.$el.addClass( 'no-widgets-found' );

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} else {

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this.$el.removeClass( 'no-widgets-found' );

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}

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}, 500 ),

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/**

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* Updates the count of the available widgets that have the `search_matched` attribute.

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*/

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updateSearchMatchesCount: function() {

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this.searchMatchesCount = this.collection.where({ search_matched: true }).length;

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},

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/**

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* Sends a message to the aria-live region to announce how many search results.

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*/

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announceSearchMatches: function() {

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var message = l10n.widgetsFound.replace( '%d', this.searchMatchesCount ) ;

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if ( ! this.searchMatchesCount ) {

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message = l10n.noWidgetsFound;

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}

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wp.a11y.speak( message );

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},

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/**

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* Changes visibility of available widgets.

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*/

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updateList: function() {

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this.collection.each( function( widget ) {

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var widgetTpl = $( '#widget-tpl-' + widget.id );

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widgetTpl.toggle( widget.get( 'search_matched' ) && ! widget.get( 'is_disabled' ) );

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if ( widget.get( 'is_disabled' ) && widgetTpl.is( this.selected ) ) {

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this.selected = null;

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}

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} );

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},

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/**

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* Highlights a widget.

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*/

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select: function( widgetTpl ) {

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this.selected = $( widgetTpl );

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this.selected.siblings( '.widget-tpl' ).removeClass( 'selected' );

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this.selected.addClass( 'selected' );

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},

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/**

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* Highlights a widget on focus.

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*/

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focus: function( event ) {

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this.select( $( event.currentTarget ) );

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},

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/**

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* Handles submit for keypress and click on widget.

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*/

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_submit: function( event ) {

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// Only proceed with keypress if it is Enter or Spacebar.

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if ( event.type === 'keypress' && ( event.which !== 13 && event.which !== 32 ) ) {

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return;

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}

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this.submit( $( event.currentTarget ) );

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},

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/**

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* Adds a selected widget to the sidebar.

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*/

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submit: function( widgetTpl ) {

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var widgetId, widget, widgetFormControl;

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if ( ! widgetTpl ) {

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widgetTpl = this.selected;

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}

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if ( ! widgetTpl || ! this.currentSidebarControl ) {

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return;

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}

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this.select( widgetTpl );

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widgetId = $( this.selected ).data( 'widget-id' );

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widget = this.collection.findWhere( { id: widgetId } );

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if ( ! widget ) {

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return;

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}

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widgetFormControl = this.currentSidebarControl.addWidget( widget.get( 'id_base' ) );

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if ( widgetFormControl ) {

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widgetFormControl.focus();

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}

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this.close();

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},

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/**

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* Opens the panel.

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*/

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open: function( sidebarControl ) {

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this.currentSidebarControl = sidebarControl;

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// Wide widget controls appear over the preview, and so they need to be collapsed when the panel opens.

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_( this.currentSidebarControl.getWidgetFormControls() ).each( function( control ) {

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if ( control.params.is_wide ) {

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control.collapseForm();

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}

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} );

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if ( api.section.has( 'publish_settings' ) ) {

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api.section( 'publish_settings' ).collapse();

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}

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$( 'body' ).addClass( 'adding-widget' );

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this.$el.find( '.selected' ).removeClass( 'selected' );

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// Reset search.

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this.collection.doSearch( '' );

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if ( ! api.settings.browser.mobile ) {

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this.$search.focus();

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}

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},

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/**

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* Closes the panel.

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*/

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close: function( options ) {

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options = options || {};

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if ( options.returnFocus && this.currentSidebarControl ) {

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this.currentSidebarControl.container.find( '.add-new-widget' ).focus();

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}

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this.currentSidebarControl = null;

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this.selected = null;

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$( 'body' ).removeClass( 'adding-widget' );

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this.$search.val( '' ).trigger( 'input' );

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},

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/**

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* Adds keyboard accessiblity to the panel.

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*/

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keyboardAccessible: function( event ) {

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var isEnter = ( event.which === 13 ),

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isEsc = ( event.which === 27 ),

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isDown = ( event.which === 40 ),

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isUp = ( event.which === 38 ),

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isTab = ( event.which === 9 ),

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isShift = ( event.shiftKey ),

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selected = null,

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firstVisible = this.$el.find( '> .widget-tpl:visible:first' ),

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lastVisible = this.$el.find( '> .widget-tpl:visible:last' ),

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isSearchFocused = $( event.target ).is( this.$search ),

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isLastWidgetFocused = $( event.target ).is( '.widget-tpl:visible:last' );

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if ( isDown || isUp ) {

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if ( isDown ) {

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if ( isSearchFocused ) {

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selected = firstVisible;

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} else if ( this.selected && this.selected.nextAll( '.widget-tpl:visible' ).length !== 0 ) {

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selected = this.selected.nextAll( '.widget-tpl:visible:first' );

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}

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} else if ( isUp ) {

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if ( isSearchFocused ) {

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selected = lastVisible;

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} else if ( this.selected && this.selected.prevAll( '.widget-tpl:visible' ).length !== 0 ) {

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selected = this.selected.prevAll( '.widget-tpl:visible:first' );

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}

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}

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this.select( selected );

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if ( selected ) {

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selected.focus();

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} else {

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this.$search.focus();

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}

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return;

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}

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// If enter pressed but nothing entered, don't do anything.

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if ( isEnter && ! this.$search.val() ) {

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return;

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}

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if ( isEnter ) {

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this.submit();

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} else if ( isEsc ) {

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this.close( { returnFocus: true } );

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}

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if ( this.currentSidebarControl && isTab && ( isShift && isSearchFocused || ! isShift && isLastWidgetFocused ) ) {

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this.currentSidebarControl.container.find( '.add-new-widget' ).focus();

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event.preventDefault();

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}

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}

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});

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/**

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* Handlers for the widget-synced event, organized by widget ID base.

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* Other widgets may provide their own update handlers by adding

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* listeners for the widget-synced event.

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*

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* @alias wp.customize.Widgets.formSyncHandlers

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*/

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api.Widgets.formSyncHandlers = {

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/**

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* @param {jQuery.Event} e

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* @param {jQuery} widget

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* @param {string} newForm

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*/

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rss: function( e, widget, newForm ) {

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var oldWidgetError = widget.find( '.widget-error:first' ),

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newWidgetError = $( '<div>' + newForm + '</div>' ).find( '.widget-error:first' );

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if ( oldWidgetError.length && newWidgetError.length ) {

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oldWidgetError.replaceWith( newWidgetError );

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} else if ( oldWidgetError.length ) {

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oldWidgetError.remove();

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} else if ( newWidgetError.length ) {

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widget.find( '.widget-content:first' ).prepend( newWidgetError );

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}

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}

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};

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api.Widgets.WidgetControl = api.Control.extend(/** @lends wp.customize.Widgets.WidgetControl.prototype */{

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defaultExpandedArguments: {

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duration: 'fast',

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completeCallback: $.noop

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},

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[482] Fix | Delete

/**

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* wp.customize.Widgets.WidgetControl

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*

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* Customizer control for widgets.

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* Note that 'widget_form' must match the WP_Widget_Form_Customize_Control::$type

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*

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* @since 4.1.0

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*

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* @constructs wp.customize.Widgets.WidgetControl

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* @augments wp.customize.Control

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*/

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initialize: function( id, options ) {

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var control = this;

[495] Fix | Delete

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control.widgetControlEmbedded = false;

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control.widgetContentEmbedded = false;

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control.expanded = new api.Value( false );

[499] Fix | Delete