774 lines
23 KiB
JavaScript
774 lines
23 KiB
JavaScript
/**
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* @output wp-includes/js/customize-preview-widgets.js
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*/
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/* global _wpWidgetCustomizerPreviewSettings */
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/**
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* Handles the initialization, refreshing and rendering of widget partials and sidebar widgets.
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*
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* @since 4.5.0
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*
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* @namespace wp.customize.widgetsPreview
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*
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* @param {jQuery} $ The jQuery object.
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* @param {Object} _ The utilities library.
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* @param {Object} wp Current WordPress environment instance.
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* @param {Object} api Information from the API.
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*
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* @return {Object} Widget-related variables.
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*/
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wp.customize.widgetsPreview = wp.customize.WidgetCustomizerPreview = (function( $, _, wp, api ) {
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var self;
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self = {
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renderedSidebars: {},
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renderedWidgets: {},
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registeredSidebars: [],
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registeredWidgets: {},
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widgetSelectors: [],
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preview: null,
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l10n: {
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widgetTooltip: ''
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},
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selectiveRefreshableWidgets: {}
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};
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/**
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* Initializes the widgets preview.
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*
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* @since 4.5.0
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*
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* @memberOf wp.customize.widgetsPreview
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*
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* @return {void}
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*/
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self.init = function() {
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var self = this;
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self.preview = api.preview;
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if ( ! _.isEmpty( self.selectiveRefreshableWidgets ) ) {
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self.addPartials();
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}
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self.buildWidgetSelectors();
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self.highlightControls();
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self.preview.bind( 'highlight-widget', self.highlightWidget );
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api.preview.bind( 'active', function() {
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self.highlightControls();
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} );
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/*
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* Refresh a partial when the controls pane requests it. This is used currently just by the
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* Gallery widget so that when an attachment's caption is updated in the media modal,
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* the widget in the preview will then be refreshed to show the change. Normally doing this
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* would not be necessary because all of the state should be contained inside the changeset,
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* as everything done in the Customizer should not make a change to the site unless the
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* changeset itself is published. Attachments are a current exception to this rule.
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* For a proposal to include attachments in the customized state, see #37887.
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*/
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api.preview.bind( 'refresh-widget-partial', function( widgetId ) {
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var partialId = 'widget[' + widgetId + ']';
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if ( api.selectiveRefresh.partial.has( partialId ) ) {
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api.selectiveRefresh.partial( partialId ).refresh();
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} else if ( self.renderedWidgets[ widgetId ] ) {
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api.preview.send( 'refresh' ); // Fallback in case theme does not support 'customize-selective-refresh-widgets'.
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}
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} );
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};
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self.WidgetPartial = api.selectiveRefresh.Partial.extend(/** @lends wp.customize.widgetsPreview.WidgetPartial.prototype */{
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/**
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* Represents a partial widget instance.
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*
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* @since 4.5.0
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*
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* @constructs
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* @augments wp.customize.selectiveRefresh.Partial
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*
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* @alias wp.customize.widgetsPreview.WidgetPartial
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* @memberOf wp.customize.widgetsPreview
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*
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* @param {string} id The partial's ID.
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* @param {Object} options Options used to initialize the partial's
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* instance.
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* @param {Object} options.params The options parameters.
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*/
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initialize: function( id, options ) {
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var partial = this, matches;
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matches = id.match( /^widget\[(.+)]$/ );
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if ( ! matches ) {
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throw new Error( 'Illegal id for widget partial.' );
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}
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partial.widgetId = matches[1];
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partial.widgetIdParts = self.parseWidgetId( partial.widgetId );
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options = options || {};
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options.params = _.extend(
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{
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settings: [ self.getWidgetSettingId( partial.widgetId ) ],
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containerInclusive: true
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},
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options.params || {}
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);
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api.selectiveRefresh.Partial.prototype.initialize.call( partial, id, options );
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},
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/**
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* Refreshes the widget partial.
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*
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* @since 4.5.0
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*
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* @return {Promise|void} Either a promise postponing the refresh, or void.
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*/
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refresh: function() {
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var partial = this, refreshDeferred;
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if ( ! self.selectiveRefreshableWidgets[ partial.widgetIdParts.idBase ] ) {
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refreshDeferred = $.Deferred();
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refreshDeferred.reject();
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partial.fallback();
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return refreshDeferred.promise();
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} else {
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return api.selectiveRefresh.Partial.prototype.refresh.call( partial );
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}
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},
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/**
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* Sends the widget-updated message to the parent so the spinner will get
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* removed from the widget control.
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*
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* @inheritDoc
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* @param {wp.customize.selectiveRefresh.Placement} placement The placement
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* function.
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*
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* @return {void}
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*/
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renderContent: function( placement ) {
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var partial = this;
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if ( api.selectiveRefresh.Partial.prototype.renderContent.call( partial, placement ) ) {
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api.preview.send( 'widget-updated', partial.widgetId );
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api.selectiveRefresh.trigger( 'widget-updated', partial );
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}
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}
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});
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self.SidebarPartial = api.selectiveRefresh.Partial.extend(/** @lends wp.customize.widgetsPreview.SidebarPartial.prototype */{
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/**
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* Represents a partial widget area.
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*
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* @since 4.5.0
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*
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* @class
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* @augments wp.customize.selectiveRefresh.Partial
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*
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* @memberOf wp.customize.widgetsPreview
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* @alias wp.customize.widgetsPreview.SidebarPartial
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*
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* @param {string} id The partial's ID.
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* @param {Object} options Options used to initialize the partial's instance.
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* @param {Object} options.params The options parameters.
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*/
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initialize: function( id, options ) {
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var partial = this, matches;
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matches = id.match( /^sidebar\[(.+)]$/ );
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if ( ! matches ) {
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throw new Error( 'Illegal id for sidebar partial.' );
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}
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partial.sidebarId = matches[1];
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options = options || {};
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options.params = _.extend(
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{
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settings: [ 'sidebars_widgets[' + partial.sidebarId + ']' ]
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},
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options.params || {}
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);
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api.selectiveRefresh.Partial.prototype.initialize.call( partial, id, options );
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if ( ! partial.params.sidebarArgs ) {
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throw new Error( 'The sidebarArgs param was not provided.' );
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}
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if ( partial.params.settings.length > 1 ) {
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throw new Error( 'Expected SidebarPartial to only have one associated setting' );
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}
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},
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/**
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* Sets up the partial.
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*
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* @since 4.5.0
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*
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* @return {void}
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*/
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ready: function() {
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var sidebarPartial = this;
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// Watch for changes to the sidebar_widgets setting.
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_.each( sidebarPartial.settings(), function( settingId ) {
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api( settingId ).bind( _.bind( sidebarPartial.handleSettingChange, sidebarPartial ) );
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} );
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// Trigger an event for this sidebar being updated whenever a widget inside is rendered.
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api.selectiveRefresh.bind( 'partial-content-rendered', function( placement ) {
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var isAssignedWidgetPartial = (
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placement.partial.extended( self.WidgetPartial ) &&
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( -1 !== _.indexOf( sidebarPartial.getWidgetIds(), placement.partial.widgetId ) )
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);
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if ( isAssignedWidgetPartial ) {
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api.selectiveRefresh.trigger( 'sidebar-updated', sidebarPartial );
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}
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} );
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// Make sure that a widget partial has a container in the DOM prior to a refresh.
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api.bind( 'change', function( widgetSetting ) {
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var widgetId, parsedId;
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parsedId = self.parseWidgetSettingId( widgetSetting.id );
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if ( ! parsedId ) {
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return;
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}
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widgetId = parsedId.idBase;
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if ( parsedId.number ) {
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widgetId += '-' + String( parsedId.number );
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}
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if ( -1 !== _.indexOf( sidebarPartial.getWidgetIds(), widgetId ) ) {
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sidebarPartial.ensureWidgetPlacementContainers( widgetId );
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}
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} );
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},
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/**
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* Gets the before/after boundary nodes for all instances of this sidebar
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* (usually one).
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*
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* Note that TreeWalker is not implemented in IE8.
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*
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* @since 4.5.0
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*
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* @return {Array.<{before: Comment, after: Comment, instanceNumber: number}>}
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* An array with an object for each sidebar instance, containing the
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* node before and after the sidebar instance and its instance number.
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*/
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findDynamicSidebarBoundaryNodes: function() {
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var partial = this, regExp, boundaryNodes = {}, recursiveCommentTraversal;
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regExp = /^(dynamic_sidebar_before|dynamic_sidebar_after):(.+):(\d+)$/;
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recursiveCommentTraversal = function( childNodes ) {
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_.each( childNodes, function( node ) {
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var matches;
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if ( 8 === node.nodeType ) {
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matches = node.nodeValue.match( regExp );
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if ( ! matches || matches[2] !== partial.sidebarId ) {
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return;
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}
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if ( _.isUndefined( boundaryNodes[ matches[3] ] ) ) {
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boundaryNodes[ matches[3] ] = {
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before: null,
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after: null,
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instanceNumber: parseInt( matches[3], 10 )
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};
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}
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if ( 'dynamic_sidebar_before' === matches[1] ) {
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boundaryNodes[ matches[3] ].before = node;
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} else {
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boundaryNodes[ matches[3] ].after = node;
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}
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} else if ( 1 === node.nodeType ) {
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recursiveCommentTraversal( node.childNodes );
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}
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} );
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};
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recursiveCommentTraversal( document.body.childNodes );
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return _.values( boundaryNodes );
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},
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/**
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* Gets the placements for this partial.
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*
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* @since 4.5.0
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*
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* @return {Array} An array containing placement objects for each of the
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* dynamic sidebar boundary nodes.
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*/
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placements: function() {
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var partial = this;
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return _.map( partial.findDynamicSidebarBoundaryNodes(), function( boundaryNodes ) {
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return new api.selectiveRefresh.Placement( {
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partial: partial,
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container: null,
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startNode: boundaryNodes.before,
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endNode: boundaryNodes.after,
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context: {
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instanceNumber: boundaryNodes.instanceNumber
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}
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} );
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} );
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},
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/**
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* Get the list of widget IDs associated with this widget area.
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*
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* @since 4.5.0
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*
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* @throws {Error} If there's no settingId.
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* @throws {Error} If the setting doesn't exist in the API.
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* @throws {Error} If the API doesn't pass an array of widget IDs.
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*
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* @return {Array} A shallow copy of the array containing widget IDs.
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*/
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getWidgetIds: function() {
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var sidebarPartial = this, settingId, widgetIds;
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settingId = sidebarPartial.settings()[0];
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if ( ! settingId ) {
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throw new Error( 'Missing associated setting.' );
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}
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if ( ! api.has( settingId ) ) {
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throw new Error( 'Setting does not exist.' );
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}
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widgetIds = api( settingId ).get();
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if ( ! _.isArray( widgetIds ) ) {
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throw new Error( 'Expected setting to be array of widget IDs' );
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}
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return widgetIds.slice( 0 );
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},
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/**
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* Reflows widgets in the sidebar, ensuring they have the proper position in the
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* DOM.
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*
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* @since 4.5.0
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*
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* @return {Array.<wp.customize.selectiveRefresh.Placement>} List of placements
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* that were reflowed.
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*/
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reflowWidgets: function() {
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var sidebarPartial = this, sidebarPlacements, widgetIds, widgetPartials, sortedSidebarContainers = [];
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widgetIds = sidebarPartial.getWidgetIds();
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sidebarPlacements = sidebarPartial.placements();
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widgetPartials = {};
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_.each( widgetIds, function( widgetId ) {
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var widgetPartial = api.selectiveRefresh.partial( 'widget[' + widgetId + ']' );
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if ( widgetPartial ) {
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widgetPartials[ widgetId ] = widgetPartial;
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}
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} );
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_.each( sidebarPlacements, function( sidebarPlacement ) {
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var sidebarWidgets = [], needsSort = false, thisPosition, lastPosition = -1;
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// Gather list of widget partial containers in this sidebar, and determine if a sort is needed.
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_.each( widgetPartials, function( widgetPartial ) {
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_.each( widgetPartial.placements(), function( widgetPlacement ) {
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if ( sidebarPlacement.context.instanceNumber === widgetPlacement.context.sidebar_instance_number ) {
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thisPosition = widgetPlacement.container.index();
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sidebarWidgets.push( {
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partial: widgetPartial,
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placement: widgetPlacement,
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position: thisPosition
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} );
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if ( thisPosition < lastPosition ) {
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needsSort = true;
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}
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lastPosition = thisPosition;
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}
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} );
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} );
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if ( needsSort ) {
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_.each( sidebarWidgets, function( sidebarWidget ) {
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sidebarPlacement.endNode.parentNode.insertBefore(
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sidebarWidget.placement.container[0],
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sidebarPlacement.endNode
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);
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// @todo Rename partial-placement-moved?
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api.selectiveRefresh.trigger( 'partial-content-moved', sidebarWidget.placement );
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} );
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sortedSidebarContainers.push( sidebarPlacement );
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}
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} );
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if ( sortedSidebarContainers.length > 0 ) {
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api.selectiveRefresh.trigger( 'sidebar-updated', sidebarPartial );
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}
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return sortedSidebarContainers;
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},
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/**
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* Makes sure there is a widget instance container in this sidebar for the given
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* widget ID.
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*
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* @since 4.5.0
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*
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* @param {string} widgetId The widget ID.
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*
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* @return {wp.customize.selectiveRefresh.Partial} The widget instance partial.
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*/
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ensureWidgetPlacementContainers: function( widgetId ) {
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var sidebarPartial = this, widgetPartial, wasInserted = false, partialId = 'widget[' + widgetId + ']';
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widgetPartial = api.selectiveRefresh.partial( partialId );
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if ( ! widgetPartial ) {
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widgetPartial = new self.WidgetPartial( partialId, {
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params: {}
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} );
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}
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// Make sure that there is a container element for the widget in the sidebar, if at least a placeholder.
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_.each( sidebarPartial.placements(), function( sidebarPlacement ) {
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var foundWidgetPlacement, widgetContainerElement;
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foundWidgetPlacement = _.find( widgetPartial.placements(), function( widgetPlacement ) {
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return ( widgetPlacement.context.sidebar_instance_number === sidebarPlacement.context.instanceNumber );
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} );
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if ( foundWidgetPlacement ) {
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return;
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}
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widgetContainerElement = $(
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sidebarPartial.params.sidebarArgs.before_widget.replace( /%1\$s/g, widgetId ).replace( /%2\$s/g, 'widget' ) +
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sidebarPartial.params.sidebarArgs.after_widget
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);
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// Handle rare case where before_widget and after_widget are empty.
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if ( ! widgetContainerElement[0] ) {
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return;
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}
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widgetContainerElement.attr( 'data-customize-partial-id', widgetPartial.id );
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widgetContainerElement.attr( 'data-customize-partial-type', 'widget' );
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widgetContainerElement.attr( 'data-customize-widget-id', widgetId );
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/*
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* Make sure the widget container element has the customize-container context data.
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* The sidebar_instance_number is used to disambiguate multiple instances of the
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* same sidebar are rendered onto the template, and so the same widget is embedded
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* multiple times.
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*/
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widgetContainerElement.data( 'customize-partial-placement-context', {
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'sidebar_id': sidebarPartial.sidebarId,
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'sidebar_instance_number': sidebarPlacement.context.instanceNumber
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} );
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sidebarPlacement.endNode.parentNode.insertBefore( widgetContainerElement[0], sidebarPlacement.endNode );
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wasInserted = true;
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} );
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api.selectiveRefresh.partial.add( widgetPartial );
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if ( wasInserted ) {
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sidebarPartial.reflowWidgets();
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}
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return widgetPartial;
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},
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/**
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* Handles changes to the sidebars_widgets[] setting.
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*
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* @since 4.5.0
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*
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* @param {Array} newWidgetIds New widget IDs.
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* @param {Array} oldWidgetIds Old widget IDs.
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*
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* @return {void}
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*/
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handleSettingChange: function( newWidgetIds, oldWidgetIds ) {
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var sidebarPartial = this, needsRefresh, widgetsRemoved, widgetsAdded, addedWidgetPartials = [];
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needsRefresh = (
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( oldWidgetIds.length > 0 && 0 === newWidgetIds.length ) ||
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( newWidgetIds.length > 0 && 0 === oldWidgetIds.length )
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);
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if ( needsRefresh ) {
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sidebarPartial.fallback();
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return;
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}
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// Handle removal of widgets.
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widgetsRemoved = _.difference( oldWidgetIds, newWidgetIds );
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_.each( widgetsRemoved, function( removedWidgetId ) {
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var widgetPartial = api.selectiveRefresh.partial( 'widget[' + removedWidgetId + ']' );
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if ( widgetPartial ) {
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_.each( widgetPartial.placements(), function( placement ) {
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var isRemoved = (
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placement.context.sidebar_id === sidebarPartial.sidebarId ||
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( placement.context.sidebar_args && placement.context.sidebar_args.id === sidebarPartial.sidebarId )
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);
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if ( isRemoved ) {
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placement.container.remove();
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}
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} );
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}
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delete self.renderedWidgets[ removedWidgetId ];
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} );
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// Handle insertion of widgets.
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widgetsAdded = _.difference( newWidgetIds, oldWidgetIds );
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_.each( widgetsAdded, function( addedWidgetId ) {
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var widgetPartial = sidebarPartial.ensureWidgetPlacementContainers( addedWidgetId );
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addedWidgetPartials.push( widgetPartial );
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self.renderedWidgets[ addedWidgetId ] = true;
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} );
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_.each( addedWidgetPartials, function( widgetPartial ) {
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widgetPartial.refresh();
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} );
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api.selectiveRefresh.trigger( 'sidebar-updated', sidebarPartial );
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},
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/**
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* Refreshes the sidebar partial.
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*
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* Note that the meat is handled in handleSettingChange because it has the
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* context of which widgets were removed.
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*
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* @since 4.5.0
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*
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* @return {Promise} A promise postponing the refresh.
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*/
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refresh: function() {
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var partial = this, deferred = $.Deferred();
|
|
|
|
deferred.fail( function() {
|
|
partial.fallback();
|
|
} );
|
|
|
|
if ( 0 === partial.placements().length ) {
|
|
deferred.reject();
|
|
} else {
|
|
_.each( partial.reflowWidgets(), function( sidebarPlacement ) {
|
|
api.selectiveRefresh.trigger( 'partial-content-rendered', sidebarPlacement );
|
|
} );
|
|
deferred.resolve();
|
|
}
|
|
|
|
return deferred.promise();
|
|
}
|
|
});
|
|
|
|
api.selectiveRefresh.partialConstructor.sidebar = self.SidebarPartial;
|
|
api.selectiveRefresh.partialConstructor.widget = self.WidgetPartial;
|
|
|
|
/**
|
|
* Adds partials for the registered widget areas (sidebars).
|
|
*
|
|
* @since 4.5.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
self.addPartials = function() {
|
|
_.each( self.registeredSidebars, function( registeredSidebar ) {
|
|
var partial, partialId = 'sidebar[' + registeredSidebar.id + ']';
|
|
partial = api.selectiveRefresh.partial( partialId );
|
|
if ( ! partial ) {
|
|
partial = new self.SidebarPartial( partialId, {
|
|
params: {
|
|
sidebarArgs: registeredSidebar
|
|
}
|
|
} );
|
|
api.selectiveRefresh.partial.add( partial );
|
|
}
|
|
} );
|
|
};
|
|
|
|
/**
|
|
* Calculates the selector for the sidebar's widgets based on the registered
|
|
* sidebar's info.
|
|
*
|
|
* @memberOf wp.customize.widgetsPreview
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
self.buildWidgetSelectors = function() {
|
|
var self = this;
|
|
|
|
$.each( self.registeredSidebars, function( i, sidebar ) {
|
|
var widgetTpl = [
|
|
sidebar.before_widget,
|
|
sidebar.before_title,
|
|
sidebar.after_title,
|
|
sidebar.after_widget
|
|
].join( '' ),
|
|
emptyWidget,
|
|
widgetSelector,
|
|
widgetClasses;
|
|
|
|
emptyWidget = $( widgetTpl );
|
|
widgetSelector = emptyWidget.prop( 'tagName' ) || '';
|
|
widgetClasses = emptyWidget.prop( 'className' ) || '';
|
|
|
|
// Prevent a rare case when before_widget, before_title, after_title and after_widget is empty.
|
|
if ( ! widgetClasses ) {
|
|
return;
|
|
}
|
|
|
|
// Remove class names that incorporate the string formatting placeholders %1$s and %2$s.
|
|
widgetClasses = widgetClasses.replace( /\S*%[12]\$s\S*/g, '' );
|
|
widgetClasses = widgetClasses.replace( /^\s+|\s+$/g, '' );
|
|
if ( widgetClasses ) {
|
|
widgetSelector += '.' + widgetClasses.split( /\s+/ ).join( '.' );
|
|
}
|
|
self.widgetSelectors.push( widgetSelector );
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Highlights the widget on widget updates or widget control mouse overs.
|
|
*
|
|
* @memberOf wp.customize.widgetsPreview
|
|
*
|
|
* @since 3.9.0
|
|
* @param {string} widgetId ID of the widget.
|
|
*
|
|
* @return {void}
|
|
*/
|
|
self.highlightWidget = function( widgetId ) {
|
|
var $body = $( document.body ),
|
|
$widget = $( '#' + widgetId );
|
|
|
|
$body.find( '.widget-customizer-highlighted-widget' ).removeClass( 'widget-customizer-highlighted-widget' );
|
|
|
|
$widget.addClass( 'widget-customizer-highlighted-widget' );
|
|
setTimeout( function() {
|
|
$widget.removeClass( 'widget-customizer-highlighted-widget' );
|
|
}, 500 );
|
|
};
|
|
|
|
/**
|
|
* Shows a title and highlights widgets on hover. On shift+clicking focuses the
|
|
* widget control.
|
|
*
|
|
* @memberOf wp.customize.widgetsPreview
|
|
*
|
|
* @since 3.9.0
|
|
*
|
|
* @return {void}
|
|
*/
|
|
self.highlightControls = function() {
|
|
var self = this,
|
|
selector = this.widgetSelectors.join( ',' );
|
|
|
|
// Skip adding highlights if not in the customizer preview iframe.
|
|
if ( ! api.settings.channel ) {
|
|
return;
|
|
}
|
|
|
|
$( selector ).attr( 'title', this.l10n.widgetTooltip );
|
|
// Highlights widget when entering the widget editor.
|
|
$( document ).on( 'mouseenter', selector, function() {
|
|
self.preview.send( 'highlight-widget-control', $( this ).prop( 'id' ) );
|
|
});
|
|
|
|
// Open expand the widget control when shift+clicking the widget element.
|
|
$( document ).on( 'click', selector, function( e ) {
|
|
if ( ! e.shiftKey ) {
|
|
return;
|
|
}
|
|
e.preventDefault();
|
|
|
|
self.preview.send( 'focus-widget-control', $( this ).prop( 'id' ) );
|
|
});
|
|
};
|
|
|
|
/**
|
|
* Parses a widget ID.
|
|
*
|
|
* @memberOf wp.customize.widgetsPreview
|
|
*
|
|
* @since 4.5.0
|
|
*
|
|
* @param {string} widgetId The widget ID.
|
|
*
|
|
* @return {{idBase: string, number: number|null}} An object containing the idBase
|
|
* and number of the parsed widget ID.
|
|
*/
|
|
self.parseWidgetId = function( widgetId ) {
|
|
var matches, parsed = {
|
|
idBase: '',
|
|
number: null
|
|
};
|
|
|
|
matches = widgetId.match( /^(.+)-(\d+)$/ );
|
|
if ( matches ) {
|
|
parsed.idBase = matches[1];
|
|
parsed.number = parseInt( matches[2], 10 );
|
|
} else {
|
|
parsed.idBase = widgetId; // Likely an old single widget.
|
|
}
|
|
|
|
return parsed;
|
|
};
|
|
|
|
/**
|
|
* Parses a widget setting ID.
|
|
*
|
|
* @memberOf wp.customize.widgetsPreview
|
|
*
|
|
* @since 4.5.0
|
|
*
|
|
* @param {string} settingId Widget setting ID.
|
|
*
|
|
* @return {{idBase: string, number: number|null}|null} Either an object containing the idBase
|
|
* and number of the parsed widget setting ID,
|
|
* or null.
|
|
*/
|
|
self.parseWidgetSettingId = function( settingId ) {
|
|
var matches, parsed = {
|
|
idBase: '',
|
|
number: null
|
|
};
|
|
|
|
matches = settingId.match( /^widget_([^\[]+?)(?:\[(\d+)])?$/ );
|
|
if ( ! matches ) {
|
|
return null;
|
|
}
|
|
parsed.idBase = matches[1];
|
|
if ( matches[2] ) {
|
|
parsed.number = parseInt( matches[2], 10 );
|
|
}
|
|
return parsed;
|
|
};
|
|
|
|
/**
|
|
* Converts a widget ID into a Customizer setting ID.
|
|
*
|
|
* @memberOf wp.customize.widgetsPreview
|
|
*
|
|
* @since 4.5.0
|
|
*
|
|
* @param {string} widgetId The widget ID.
|
|
*
|
|
* @return {string} The setting ID.
|
|
*/
|
|
self.getWidgetSettingId = function( widgetId ) {
|
|
var parsed = this.parseWidgetId( widgetId ), settingId;
|
|
|
|
settingId = 'widget_' + parsed.idBase;
|
|
if ( parsed.number ) {
|
|
settingId += '[' + String( parsed.number ) + ']';
|
|
}
|
|
|
|
return settingId;
|
|
};
|
|
|
|
api.bind( 'preview-ready', function() {
|
|
$.extend( self, _wpWidgetCustomizerPreviewSettings );
|
|
self.init();
|
|
});
|
|
|
|
return self;
|
|
})( jQuery, _, wp, wp.customize );
|