285 lines
8.3 KiB
JavaScript
285 lines
8.3 KiB
JavaScript
/* global JSON, _wpCustomizePreviewNavMenusExports */
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( function( $, _, wp ) {
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'use strict';
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if ( ! wp || ! wp.customize ) { return; }
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var api = wp.customize,
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currentRefreshDebounced = {},
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refreshDebounceDelay = 200,
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settings = {},
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defaultSettings = {
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renderQueryVar: null,
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renderNonceValue: null,
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renderNoncePostKey: null,
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previewCustomizeNonce: null,
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requestUri: '/',
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theme: {
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active: false,
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stylesheet: ''
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},
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navMenuInstanceArgs: {}
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};
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api.MenusCustomizerPreview = {
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/**
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* Bootstrap functionality.
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*/
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init : function() {
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var self = this, initializedSettings = {};
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settings = _.extend( {}, defaultSettings );
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if ( 'undefined' !== typeof _wpCustomizePreviewNavMenusExports ) {
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_.extend( settings, _wpCustomizePreviewNavMenusExports );
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}
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api.each( function( setting, id ) {
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setting.id = id;
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initializedSettings[ setting.id ] = true;
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self.bindListener( setting );
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} );
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api.preview.bind( 'setting', function( args ) {
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var id, value, setting;
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args = args.slice();
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id = args.shift();
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value = args.shift();
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setting = api( id );
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if ( ! setting ) {
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// Currently customize-preview.js is not creating settings for dynamically-created settings in the pane, so we have to do it.
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setting = api.create( id, value ); // @todo This should be in core
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}
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if ( ! setting.id ) {
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// Currently customize-preview.js doesn't set the id property for each setting, like customize-controls.js does.
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setting.id = id;
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}
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if ( ! initializedSettings[ setting.id ] ) {
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initializedSettings[ setting.id ] = true;
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if ( self.bindListener( setting ) ) {
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setting.callbacks.fireWith( setting, [ setting(), null ] );
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}
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}
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} );
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},
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/**
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*
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* @param {wp.customize.Value} setting
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* @returns {boolean} Whether the setting was bound.
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*/
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bindListener : function( setting ) {
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var matches, themeLocation;
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matches = setting.id.match( /^nav_menu\[(-?\d+)]$/ );
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if ( matches ) {
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setting.navMenuId = parseInt( matches[1], 10 );
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setting.bind( this.onChangeNavMenuSetting );
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return true;
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}
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matches = setting.id.match( /^nav_menu_item\[(-?\d+)]$/ );
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if ( matches ) {
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setting.navMenuItemId = parseInt( matches[1], 10 );
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setting.bind( this.onChangeNavMenuItemSetting );
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return true;
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}
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matches = setting.id.match( /^nav_menu_locations\[(.+?)]/ );
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if ( matches ) {
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themeLocation = matches[1];
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setting.bind( _.bind( function() {
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this.refreshMenuLocation( themeLocation );
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}, this ) );
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return true;
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}
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return false;
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},
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/**
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* Handle changing of a nav_menu setting.
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*
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* @this {wp.customize.Setting}
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*/
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onChangeNavMenuSetting : function() {
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var setting = this;
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if ( ! setting.navMenuId ) {
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throw new Error( 'Expected navMenuId property to be set.' );
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}
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api.MenusCustomizerPreview.refreshMenu( setting.navMenuId );
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},
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/**
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* Handle changing of a nav_menu_item setting.
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*
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* @this {wp.customize.Setting}
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* @param {object} to
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* @param {object} from
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*/
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onChangeNavMenuItemSetting : function( to, from ) {
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if ( from && from.nav_menu_term_id && ( ! to || from.nav_menu_term_id !== to.nav_menu_term_id ) ) {
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api.MenusCustomizerPreview.refreshMenu( from.nav_menu_term_id );
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}
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if ( to && to.nav_menu_term_id ) {
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api.MenusCustomizerPreview.refreshMenu( to.nav_menu_term_id );
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}
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},
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/**
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* Update a given menu rendered in the preview.
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*
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* @param {int} menuId
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*/
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refreshMenu : function( menuId ) {
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var assignedLocations = [];
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api.each(function( setting, id ) {
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var matches = id.match( /^nav_menu_locations\[(.+?)]/ );
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if ( matches && menuId === setting() ) {
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assignedLocations.push( matches[1] );
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}
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});
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_.each( settings.navMenuInstanceArgs, function( navMenuArgs, instanceNumber ) {
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if ( menuId === navMenuArgs.menu || -1 !== _.indexOf( assignedLocations, navMenuArgs.theme_location ) ) {
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this.refreshMenuInstanceDebounced( instanceNumber );
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}
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}, this );
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},
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/**
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* Refresh the menu(s) associated with a given nav menu location.
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*
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* @param {string} location
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*/
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refreshMenuLocation : function( location ) {
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var foundInstance = false;
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_.each( settings.navMenuInstanceArgs, function( navMenuArgs, instanceNumber ) {
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if ( location === navMenuArgs.theme_location ) {
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this.refreshMenuInstanceDebounced( instanceNumber );
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foundInstance = true;
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}
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}, this );
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if ( ! foundInstance ) {
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api.preview.send( 'refresh' );
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}
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},
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/**
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* Update a specific instance of a given menu on the page.
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*
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* @param {int} instanceNumber
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*/
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refreshMenuInstance : function( instanceNumber ) {
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var data, menuId, customized, container, request, wpNavMenuArgs, instance, containerInstanceClassName;
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if ( ! settings.navMenuInstanceArgs[ instanceNumber ] ) {
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throw new Error( 'unknown_instance_number' );
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}
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instance = settings.navMenuInstanceArgs[ instanceNumber ];
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containerInstanceClassName = 'partial-refreshable-nav-menu-' + String( instanceNumber );
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container = $( '.' + containerInstanceClassName );
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if ( _.isNumber( instance.menu ) ) {
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menuId = instance.menu;
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} else if ( instance.theme_location && api.has( 'nav_menu_locations[' + instance.theme_location + ']' ) ) {
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menuId = api( 'nav_menu_locations[' + instance.theme_location + ']' ).get();
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}
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if ( ! menuId || ! instance.can_partial_refresh || 0 === container.length ) {
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api.preview.send( 'refresh' );
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return;
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}
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menuId = parseInt( menuId, 10 );
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data = {
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nonce: settings.previewCustomizeNonce, // for Customize Preview
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wp_customize: 'on'
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};
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if ( ! settings.theme.active ) {
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data.theme = settings.theme.stylesheet;
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}
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data[ settings.renderQueryVar ] = '1';
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// Gather settings to send in partial refresh request.
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customized = {};
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api.each( function( setting, id ) {
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var value = setting.get(), shouldSend = false;
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// @todo Core should propagate the dirty state into the Preview as well so we can use that here.
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// Send setting if it is a nav_menu_locations[] setting.
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shouldSend = shouldSend || /^nav_menu_locations\[/.test( id );
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// Send setting if it is the setting for this menu.
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shouldSend = shouldSend || id === 'nav_menu[' + String( menuId ) + ']';
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// Send setting if it is one that is associated with this menu, or it is deleted.
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shouldSend = shouldSend || ( /^nav_menu_item\[/.test( id ) && ( false === value || menuId === value.nav_menu_term_id ) );
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if ( shouldSend ) {
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customized[ id ] = value;
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}
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} );
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data.customized = JSON.stringify( customized );
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data[ settings.renderNoncePostKey ] = settings.renderNonceValue;
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wpNavMenuArgs = $.extend( {}, instance );
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data.wp_nav_menu_args_hash = wpNavMenuArgs.args_hash;
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delete wpNavMenuArgs.args_hash;
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data.wp_nav_menu_args = JSON.stringify( wpNavMenuArgs );
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container.addClass( 'customize-partial-refreshing' );
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request = wp.ajax.send( null, {
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data: data,
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url: settings.requestUri
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} );
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request.done( function( data ) {
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// If the menu is now not visible, refresh since the page layout may have changed.
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if ( false === data ) {
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api.preview.send( 'refresh' );
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return;
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}
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var eventParam, previousContainer = container;
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container = $( data );
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container.addClass( containerInstanceClassName );
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container.addClass( 'partial-refreshable-nav-menu customize-partial-refreshing' );
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previousContainer.replaceWith( container );
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eventParam = {
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instanceNumber: instanceNumber,
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wpNavArgs: wpNavMenuArgs, // @deprecated
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wpNavMenuArgs: wpNavMenuArgs,
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oldContainer: previousContainer,
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newContainer: container
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};
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container.removeClass( 'customize-partial-refreshing' );
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$( document ).trigger( 'customize-preview-menu-refreshed', [ eventParam ] );
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} );
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},
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refreshMenuInstanceDebounced : function( instanceNumber ) {
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if ( currentRefreshDebounced[ instanceNumber ] ) {
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clearTimeout( currentRefreshDebounced[ instanceNumber ] );
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}
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currentRefreshDebounced[ instanceNumber ] = setTimeout(
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_.bind( function() {
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this.refreshMenuInstance( instanceNumber );
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}, this ),
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refreshDebounceDelay
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);
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}
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};
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api.bind( 'preview-ready', function() {
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api.preview.bind( 'active', function() {
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api.MenusCustomizerPreview.init();
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} );
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} );
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}( jQuery, _, wp ) );
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