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+/**
+ * @output wp-admin/js/widgets/text-widgets.js
+ */
+
+/* global tinymce, switchEditors */
+/* eslint consistent-this: [ "error", "control" ] */
+
+/**
+ * @namespace wp.textWidgets
+ */
+wp.textWidgets = ( function( $ ) {
+ 'use strict';
+
+ var component = {
+ dismissedPointers: [],
+ idBases: [ 'text' ]
+ };
+
+ component.TextWidgetControl = Backbone.View.extend(/** @lends wp.textWidgets.TextWidgetControl.prototype */{
+
+ /**
+ * View events.
+ *
+ * @type {Object}
+ */
+ events: {},
+
+ /**
+ * Text widget control.
+ *
+ * @constructs wp.textWidgets.TextWidgetControl
+ * @augments Backbone.View
+ * @abstract
+ *
+ * @param {Object} options - Options.
+ * @param {jQuery} options.el - Control field container element.
+ * @param {jQuery} options.syncContainer - Container element where fields are synced for the server.
+ *
+ * @returns {void}
+ */
+ initialize: function initialize( options ) {
+ var control = this;
+
+ if ( ! options.el ) {
+ throw new Error( 'Missing options.el' );
+ }
+ if ( ! options.syncContainer ) {
+ throw new Error( 'Missing options.syncContainer' );
+ }
+
+ Backbone.View.prototype.initialize.call( control, options );
+ control.syncContainer = options.syncContainer;
+
+ control.$el.addClass( 'text-widget-fields' );
+ control.$el.html( wp.template( 'widget-text-control-fields' ) );
+
+ control.customHtmlWidgetPointer = control.$el.find( '.wp-pointer.custom-html-widget-pointer' );
+ if ( control.customHtmlWidgetPointer.length ) {
+ control.customHtmlWidgetPointer.find( '.close' ).on( 'click', function( event ) {
+ event.preventDefault();
+ control.customHtmlWidgetPointer.hide();
+ $( '#' + control.fields.text.attr( 'id' ) + '-html' ).focus();
+ control.dismissPointers( [ 'text_widget_custom_html' ] );
+ });
+ control.customHtmlWidgetPointer.find( '.add-widget' ).on( 'click', function( event ) {
+ event.preventDefault();
+ control.customHtmlWidgetPointer.hide();
+ control.openAvailableWidgetsPanel();
+ });
+ }
+
+ control.pasteHtmlPointer = control.$el.find( '.wp-pointer.paste-html-pointer' );
+ if ( control.pasteHtmlPointer.length ) {
+ control.pasteHtmlPointer.find( '.close' ).on( 'click', function( event ) {
+ event.preventDefault();
+ control.pasteHtmlPointer.hide();
+ control.editor.focus();
+ control.dismissPointers( [ 'text_widget_custom_html', 'text_widget_paste_html' ] );
+ });
+ }
+
+ control.fields = {
+ title: control.$el.find( '.title' ),
+ text: control.$el.find( '.text' )
+ };
+
+ // Sync input fields to hidden sync fields which actually get sent to the server.
+ _.each( control.fields, function( fieldInput, fieldName ) {
+ fieldInput.on( 'input change', function updateSyncField() {
+ var syncInput = control.syncContainer.find( '.sync-input.' + fieldName );
+ if ( syncInput.val() !== fieldInput.val() ) {
+ syncInput.val( fieldInput.val() );
+ syncInput.trigger( 'change' );
+ }
+ });
+
+ // Note that syncInput cannot be re-used because it will be destroyed with each widget-updated event.
+ fieldInput.val( control.syncContainer.find( '.sync-input.' + fieldName ).val() );
+ });
+ },
+
+ /**
+ * Dismiss pointers for Custom HTML widget.
+ *
+ * @since 4.8.1
+ *
+ * @param {Array} pointers Pointer IDs to dismiss.
+ * @returns {void}
+ */
+ dismissPointers: function dismissPointers( pointers ) {
+ _.each( pointers, function( pointer ) {
+ wp.ajax.post( 'dismiss-wp-pointer', {
+ pointer: pointer
+ });
+ component.dismissedPointers.push( pointer );
+ });
+ },
+
+ /**
+ * Open available widgets panel.
+ *
+ * @since 4.8.1
+ * @returns {void}
+ */
+ openAvailableWidgetsPanel: function openAvailableWidgetsPanel() {
+ var sidebarControl;
+ wp.customize.section.each( function( section ) {
+ if ( section.extended( wp.customize.Widgets.SidebarSection ) && section.expanded() ) {
+ sidebarControl = wp.customize.control( 'sidebars_widgets[' + section.params.sidebarId + ']' );
+ }
+ });
+ if ( ! sidebarControl ) {
+ return;
+ }
+ setTimeout( function() { // Timeout to prevent click event from causing panel to immediately collapse.
+ wp.customize.Widgets.availableWidgetsPanel.open( sidebarControl );
+ wp.customize.Widgets.availableWidgetsPanel.$search.val( 'HTML' ).trigger( 'keyup' );
+ });
+ },
+
+ /**
+ * Update input fields from the sync fields.
+ *
+ * This function is called at the widget-updated and widget-synced events.
+ * A field will only be updated if it is not currently focused, to avoid
+ * overwriting content that the user is entering.
+ *
+ * @returns {void}
+ */
+ updateFields: function updateFields() {
+ var control = this, syncInput;
+
+ if ( ! control.fields.title.is( document.activeElement ) ) {
+ syncInput = control.syncContainer.find( '.sync-input.title' );
+ control.fields.title.val( syncInput.val() );
+ }
+
+ syncInput = control.syncContainer.find( '.sync-input.text' );
+ if ( control.fields.text.is( ':visible' ) ) {
+ if ( ! control.fields.text.is( document.activeElement ) ) {
+ control.fields.text.val( syncInput.val() );
+ }
+ } else if ( control.editor && ! control.editorFocused && syncInput.val() !== control.fields.text.val() ) {
+ control.editor.setContent( wp.editor.autop( syncInput.val() ) );
+ }
+ },
+
+ /**
+ * Initialize editor.
+ *
+ * @returns {void}
+ */
+ initializeEditor: function initializeEditor() {
+ var control = this, changeDebounceDelay = 1000, id, textarea, triggerChangeIfDirty, restoreTextMode = false, needsTextareaChangeTrigger = false, previousValue;
+ textarea = control.fields.text;
+ id = textarea.attr( 'id' );
+ previousValue = textarea.val();
+
+ /**
+ * Trigger change if dirty.
+ *
+ * @returns {void}
+ */
+ triggerChangeIfDirty = function() {
+ var updateWidgetBuffer = 300; // See wp.customize.Widgets.WidgetControl._setupUpdateUI() which uses 250ms for updateWidgetDebounced.
+ if ( control.editor.isDirty() ) {
+
+ /*
+ * Account for race condition in customizer where user clicks Save & Publish while
+ * focus was just previously given to the editor. Since updates to the editor
+ * are debounced at 1 second and since widget input changes are only synced to
+ * settings after 250ms, the customizer needs to be put into the processing
+ * state during the time between the change event is triggered and updateWidget
+ * logic starts. Note that the debounced update-widget request should be able
+ * to be removed with the removal of the update-widget request entirely once
+ * widgets are able to mutate their own instance props directly in JS without
+ * having to make server round-trips to call the respective WP_Widget::update()
+ * callbacks. See <https://core.trac.wordpress.org/ticket/33507>.
+ */
+ if ( wp.customize && wp.customize.state ) {
+ wp.customize.state( 'processing' ).set( wp.customize.state( 'processing' ).get() + 1 );
+ _.delay( function() {
+ wp.customize.state( 'processing' ).set( wp.customize.state( 'processing' ).get() - 1 );
+ }, updateWidgetBuffer );
+ }
+
+ if ( ! control.editor.isHidden() ) {
+ control.editor.save();
+ }
+ }
+
+ // Trigger change on textarea when it has changed so the widget can enter a dirty state.
+ if ( needsTextareaChangeTrigger && previousValue !== textarea.val() ) {
+ textarea.trigger( 'change' );
+ needsTextareaChangeTrigger = false;
+ previousValue = textarea.val();
+ }
+ };
+
+ // Just-in-time force-update the hidden input fields.
+ control.syncContainer.closest( '.widget' ).find( '[name=savewidget]:first' ).on( 'click', function onClickSaveButton() {
+ triggerChangeIfDirty();
+ });
+
+ /**
+ * Build (or re-build) the visual editor.
+ *
+ * @returns {void}
+ */
+ function buildEditor() {
+ var editor, onInit, showPointerElement;
+
+ // Abort building if the textarea is gone, likely due to the widget having been deleted entirely.
+ if ( ! document.getElementById( id ) ) {
+ return;
+ }
+
+ // The user has disabled TinyMCE.
+ if ( typeof window.tinymce === 'undefined' ) {
+ wp.editor.initialize( id, {
+ quicktags: true,
+ mediaButtons: true
+ });
+
+ return;
+ }
+
+ // Destroy any existing editor so that it can be re-initialized after a widget-updated event.
+ if ( tinymce.get( id ) ) {
+ restoreTextMode = tinymce.get( id ).isHidden();
+ wp.editor.remove( id );
+ }
+
+ // Add or enable the `wpview` plugin.
+ $( document ).one( 'wp-before-tinymce-init.text-widget-init', function( event, init ) {
+ // If somebody has removed all plugins, they must have a good reason.
+ // Keep it that way.
+ if ( ! init.plugins ) {
+ return;
+ } else if ( ! /\bwpview\b/.test( init.plugins ) ) {
+ init.plugins += ',wpview';
+ }
+ } );
+
+ wp.editor.initialize( id, {
+ tinymce: {
+ wpautop: true
+ },
+ quicktags: true,
+ mediaButtons: true
+ });
+
+ /**
+ * Show a pointer, focus on dismiss, and speak the contents for a11y.
+ *
+ * @param {jQuery} pointerElement Pointer element.
+ * @returns {void}
+ */
+ showPointerElement = function( pointerElement ) {
+ pointerElement.show();
+ pointerElement.find( '.close' ).focus();
+ wp.a11y.speak( pointerElement.find( 'h3, p' ).map( function() {
+ return $( this ).text();
+ } ).get().join( '\n\n' ) );
+ };
+
+ editor = window.tinymce.get( id );
+ if ( ! editor ) {
+ throw new Error( 'Failed to initialize editor' );
+ }
+ onInit = function() {
+
+ // When a widget is moved in the DOM the dynamically-created TinyMCE iframe will be destroyed and has to be re-built.
+ $( editor.getWin() ).on( 'unload', function() {
+ _.defer( buildEditor );
+ });
+
+ // If a prior mce instance was replaced, and it was in text mode, toggle to text mode.
+ if ( restoreTextMode ) {
+ switchEditors.go( id, 'html' );
+ }
+
+ // Show the pointer.
+ $( '#' + id + '-html' ).on( 'click', function() {
+ control.pasteHtmlPointer.hide(); // Hide the HTML pasting pointer.
+
+ if ( -1 !== component.dismissedPointers.indexOf( 'text_widget_custom_html' ) ) {
+ return;
+ }
+ showPointerElement( control.customHtmlWidgetPointer );
+ });
+
+ // Hide the pointer when switching tabs.
+ $( '#' + id + '-tmce' ).on( 'click', function() {
+ control.customHtmlWidgetPointer.hide();
+ });
+
+ // Show pointer when pasting HTML.
+ editor.on( 'pastepreprocess', function( event ) {
+ var content = event.content;
+ if ( -1 !== component.dismissedPointers.indexOf( 'text_widget_paste_html' ) || ! content || ! /&lt;\w+.*?&gt;/.test( content ) ) {
+ return;
+ }
+
+ // Show the pointer after a slight delay so the user sees what they pasted.
+ _.delay( function() {
+ showPointerElement( control.pasteHtmlPointer );
+ }, 250 );
+ });
+ };
+
+ if ( editor.initialized ) {
+ onInit();
+ } else {
+ editor.on( 'init', onInit );
+ }
+
+ control.editorFocused = false;
+
+ editor.on( 'focus', function onEditorFocus() {
+ control.editorFocused = true;
+ });
+ editor.on( 'paste', function onEditorPaste() {
+ editor.setDirty( true ); // Because pasting doesn't currently set the dirty state.
+ triggerChangeIfDirty();
+ });
+ editor.on( 'NodeChange', function onNodeChange() {
+ needsTextareaChangeTrigger = true;
+ });
+ editor.on( 'NodeChange', _.debounce( triggerChangeIfDirty, changeDebounceDelay ) );
+ editor.on( 'blur hide', function onEditorBlur() {
+ control.editorFocused = false;
+ triggerChangeIfDirty();
+ });
+
+ control.editor = editor;
+ }
+
+ buildEditor();
+ }
+ });
+
+ /**
+ * Mapping of widget ID to instances of TextWidgetControl subclasses.
+ *
+ * @memberOf wp.textWidgets
+ *
+ * @type {Object.<string, wp.textWidgets.TextWidgetControl>}
+ */
+ component.widgetControls = {};
+
+ /**
+ * Handle widget being added or initialized for the first time at the widget-added event.
+ *
+ * @memberOf wp.textWidgets
+ *
+ * @param {jQuery.Event} event - Event.
+ * @param {jQuery} widgetContainer - Widget container element.
+ *
+ * @returns {void}
+ */
+ component.handleWidgetAdded = function handleWidgetAdded( event, widgetContainer ) {
+ var widgetForm, idBase, widgetControl, widgetId, animatedCheckDelay = 50, renderWhenAnimationDone, fieldContainer, syncContainer;
+ widgetForm = widgetContainer.find( '> .widget-inside > .form, > .widget-inside > form' ); // Note: '.form' appears in the customizer, whereas 'form' on the widgets admin screen.
+
+ idBase = widgetForm.find( '> .id_base' ).val();
+ if ( -1 === component.idBases.indexOf( idBase ) ) {
+ return;
+ }
+
+ // Prevent initializing already-added widgets.
+ widgetId = widgetForm.find( '.widget-id' ).val();
+ if ( component.widgetControls[ widgetId ] ) {
+ return;
+ }
+
+ // Bypass using TinyMCE when widget is in legacy mode.
+ if ( ! widgetForm.find( '.visual' ).val() ) {
+ return;
+ }
+
+ /*
+ * Create a container element for the widget control fields.
+ * This is inserted into the DOM immediately before the .widget-content
+ * element because the contents of this element are essentially "managed"
+ * by PHP, where each widget update cause the entire element to be emptied
+ * and replaced with the rendered output of WP_Widget::form() which is
+ * sent back in Ajax request made to save/update the widget instance.
+ * To prevent a "flash of replaced DOM elements and re-initialized JS
+ * components", the JS template is rendered outside of the normal form
+ * container.
+ */
+ fieldContainer = $( '<div></div>' );
+ syncContainer = widgetContainer.find( '.widget-content:first' );
+ syncContainer.before( fieldContainer );
+
+ widgetControl = new component.TextWidgetControl({
+ el: fieldContainer,
+ syncContainer: syncContainer
+ });
+
+ component.widgetControls[ widgetId ] = widgetControl;
+
+ /*
+ * Render the widget once the widget parent's container finishes animating,
+ * as the widget-added event fires with a slideDown of the container.
+ * This ensures that the textarea is visible and an iframe can be embedded
+ * with TinyMCE being able to set contenteditable on it.
+ */
+ renderWhenAnimationDone = function() {
+ if ( ! widgetContainer.hasClass( 'open' ) ) {
+ setTimeout( renderWhenAnimationDone, animatedCheckDelay );
+ } else {
+ widgetControl.initializeEditor();
+ }
+ };
+ renderWhenAnimationDone();
+ };
+
+ /**
+ * Setup widget in accessibility mode.
+ *
+ * @memberOf wp.textWidgets
+ *
+ * @returns {void}
+ */
+ component.setupAccessibleMode = function setupAccessibleMode() {
+ var widgetForm, idBase, widgetControl, fieldContainer, syncContainer;
+ widgetForm = $( '.editwidget > form' );
+ if ( 0 === widgetForm.length ) {
+ return;
+ }
+
+ idBase = widgetForm.find( '> .widget-control-actions > .id_base' ).val();
+ if ( -1 === component.idBases.indexOf( idBase ) ) {
+ return;
+ }
+
+ // Bypass using TinyMCE when widget is in legacy mode.
+ if ( ! widgetForm.find( '.visual' ).val() ) {
+ return;
+ }
+
+ fieldContainer = $( '<div></div>' );
+ syncContainer = widgetForm.find( '> .widget-inside' );
+ syncContainer.before( fieldContainer );
+
+ widgetControl = new component.TextWidgetControl({
+ el: fieldContainer,
+ syncContainer: syncContainer
+ });
+
+ widgetControl.initializeEditor();
+ };
+
+ /**
+ * Sync widget instance data sanitized from server back onto widget model.
+ *
+ * This gets called via the 'widget-updated' event when saving a widget from
+ * the widgets admin screen and also via the 'widget-synced' event when making
+ * a change to a widget in the customizer.
+ *
+ * @memberOf wp.textWidgets
+ *
+ * @param {jQuery.Event} event - Event.
+ * @param {jQuery} widgetContainer - Widget container element.
+ * @returns {void}
+ */
+ component.handleWidgetUpdated = function handleWidgetUpdated( event, widgetContainer ) {
+ var widgetForm, widgetId, widgetControl, idBase;
+ widgetForm = widgetContainer.find( '> .widget-inside > .form, > .widget-inside > form' );
+
+ idBase = widgetForm.find( '> .id_base' ).val();
+ if ( -1 === component.idBases.indexOf( idBase ) ) {
+ return;
+ }
+
+ widgetId = widgetForm.find( '> .widget-id' ).val();
+ widgetControl = component.widgetControls[ widgetId ];
+ if ( ! widgetControl ) {
+ return;
+ }
+
+ widgetControl.updateFields();
+ };
+
+ /**
+ * Initialize functionality.
+ *
+ * This function exists to prevent the JS file from having to boot itself.
+ * When WordPress enqueues this script, it should have an inline script
+ * attached which calls wp.textWidgets.init().
+ *
+ * @memberOf wp.textWidgets
+ *
+ * @returns {void}
+ */
+ component.init = function init() {
+ var $document = $( document );
+ $document.on( 'widget-added', component.handleWidgetAdded );
+ $document.on( 'widget-synced widget-updated', component.handleWidgetUpdated );
+
+ /*
+ * Manually trigger widget-added events for media widgets on the admin
+ * screen once they are expanded. The widget-added event is not triggered
+ * for each pre-existing widget on the widgets admin screen like it is
+ * on the customizer. Likewise, the customizer only triggers widget-added
+ * when the widget is expanded to just-in-time construct the widget form
+ * when it is actually going to be displayed. So the following implements
+ * the same for the widgets admin screen, to invoke the widget-added
+ * handler when a pre-existing media widget is expanded.
+ */
+ $( function initializeExistingWidgetContainers() {
+ var widgetContainers;
+ if ( 'widgets' !== window.pagenow ) {
+ return;
+ }
+ widgetContainers = $( '.widgets-holder-wrap:not(#available-widgets)' ).find( 'div.widget' );
+ widgetContainers.one( 'click.toggle-widget-expanded', function toggleWidgetExpanded() {
+ var widgetContainer = $( this );
+ component.handleWidgetAdded( new jQuery.Event( 'widget-added' ), widgetContainer );
+ });
+
+ // Accessibility mode.
+ $( window ).on( 'load', function() {
+ component.setupAccessibleMode();
+ });
+ });
+ };
+
+ return component;
+})( jQuery );
generated by cgit v1.2.1 (git 2.18.0) at 2024-04-20 06:46:25 +0000