WordPress/wp-includes/js/customize-preview-widgets.js

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/*global jQuery, WidgetCustomizerPreview_exports */
/*exported WidgetCustomizerPreview */
var WidgetCustomizerPreview = (function ($) {
'use strict';
var self = {
rendered_sidebars: {}, // @todo Make rendered a property of the Backbone model
rendered_widgets: {}, // @todo Make rendered a property of the Backbone model
registered_sidebars: [], // @todo Make a Backbone collection
registered_widgets: {}, // @todo Make array, Backbone collection
widget_selectors: [],
render_widget_ajax_action: null,
render_widget_nonce_value: null,
render_widget_nonce_post_key: null,
preview: null,
i18n: {},
init: function () {
this.buildWidgetSelectors();
this.highlightControls();
self.preview.bind( 'active', function() {
self.preview.send( 'rendered-sidebars', self.rendered_sidebars ); // @todo Only send array of IDs
self.preview.send( 'rendered-widgets', self.rendered_widgets ); // @todo Only send array of IDs
} );
},
/**
* Calculate the selector for the sidebar's widgets based on the registered sidebar's info
*/
buildWidgetSelectors: function () {
$.each( self.registered_sidebars, function ( i, sidebar ) {
var widget_tpl = [
sidebar.before_widget.replace('%1$s', '').replace('%2$s', ''),
sidebar.before_title,
sidebar.after_title,
sidebar.after_widget
].join('');
var empty_widget = $(widget_tpl);
var widget_selector = empty_widget.prop('tagName');
var widget_classes = empty_widget.prop('className').replace(/^\s+|\s+$/g, '');
if ( widget_classes ) {
widget_selector += '.' + widget_classes.split(/\s+/).join('.');
}
self.widget_selectors.push(widget_selector);
});
},
/**
* Obtain a widget instance if it was added to the provided sidebar
* This addresses a race condition where a widget is moved between sidebars
* We cannot use ID selector because jQuery will only return the first one
* that matches. We have to resort to an [id] attribute selector
*
* @param {String} sidebar_id
* @param {String} widget_id
* @return {jQuery}
*/
getSidebarWidgetElement: function ( sidebar_id, widget_id ) {
return $( '[id=' + widget_id + ']' ).filter( function () {
return $( this ).data( 'widget_customizer_sidebar_id' ) === sidebar_id;
} );
},
/**
*
*/
highlightControls: function() {
var selector = this.widget_selectors.join(',');
$(selector).attr( 'title', self.i18n.widget_tooltip );
$(document).on( 'mouseenter', selector, function () {
var control = parent.WidgetCustomizer.getWidgetFormControlForWidget( $(this).prop('id') );
if ( control ) {
control.highlightSectionAndControl();
}
});
// Open expand the widget control when shift+clicking the widget element
$(document).on( 'click', selector, function ( e ) {
if ( ! e.shiftKey ) {
return;
}
e.preventDefault();
var control = parent.WidgetCustomizer.getWidgetFormControlForWidget( $(this).prop('id') );
if ( control ) {
control.focus();
}
});
}
};
$.extend(self, WidgetCustomizerPreview_exports);
/**
* Capture the instance of the Preview since it is private
*/
var OldPreview = wp.customize.Preview;
wp.customize.Preview = OldPreview.extend( {
initialize: function( params, options ) {
self.preview = this;
OldPreview.prototype.initialize.call( this, params, options );
}
} );
// @todo on customize ready?
$(function () {
self.init();
});
return self;
}( jQuery ));