WordPress/wp-includes/js/customize-loader.min.js
Andrea Fercia 3c1d571cd7 Accessibility: Improve the Customizer and Theme Installer initial focus.
The Customizer and Theme Installer open in full overlays that need to receive 
focus. Also, keyboard navigation should be constrained within the overlays. Using
CSS `visibility` to hide all the content except the overlays, makes them the only
available and focusable content and allows browsers to handle focus natively.

See #29158.
Fixes #33228, #27705.

Built from https://develop.svn.wordpress.org/trunk@38520


git-svn-id: http://core.svn.wordpress.org/trunk@38461 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2016-09-04 21:51:31 +00:00

1 line
3.1 KiB
JavaScript

window.wp=window.wp||{},function(a,b){var c,d=wp.customize;b.extend(b.support,{history:!(!window.history||!history.pushState),hashchange:"onhashchange"in window&&(void 0===document.documentMode||document.documentMode>7)}),c=b.extend({},d.Events,{initialize:function(){this.body=b(document.body),c.settings&&b.support.postMessage&&(b.support.cors||!c.settings.isCrossDomain)&&(this.window=b(window),this.element=b('<div id="customize-container" />').appendTo(this.body),this.bind("open",this.overlay.show),this.bind("close",this.overlay.hide),b("#wpbody").on("click",".load-customize",function(a){a.preventDefault(),c.link=b(this),c.open(c.link.attr("href"))}),b.support.history&&this.window.on("popstate",c.popstate),b.support.hashchange&&(this.window.on("hashchange",c.hashchange),this.window.triggerHandler("hashchange")))},popstate:function(a){var b=a.originalEvent.state;b&&b.customize?c.open(b.customize):c.active&&c.close()},hashchange:function(){var a=window.location.toString().split("#")[1];a&&0===a.indexOf("wp_customize=on")&&c.open(c.settings.url+"?"+a),a||b.support.history||c.close()},beforeunload:function(){return c.saved()?void 0:c.settings.l10n.saveAlert},open:function(a){if(!this.active){if(c.settings.browser.mobile)return window.location=a;this.originalDocumentTitle=document.title,this.active=!0,this.body.addClass("customize-loading"),this.saved=new d.Value(!0),this.iframe=b("<iframe />",{src:a,title:c.settings.l10n.mainIframeTitle}).appendTo(this.element),this.iframe.one("load",this.loaded),this.messenger=new d.Messenger({url:a,channel:"loader",targetWindow:this.iframe[0].contentWindow}),this.messenger.bind("ready",function(){c.messenger.send("back")}),this.messenger.bind("close",function(){b.support.history?history.back():b.support.hashchange?window.location.hash="":c.close()}),b(window).on("beforeunload",this.beforeunload),this.messenger.bind("saved",function(){c.saved(!0)}),this.messenger.bind("change",function(){c.saved(!1)}),this.messenger.bind("title",function(a){window.document.title=a}),this.pushState(a),this.trigger("open")}},pushState:function(a){var c=a.split("?")[1];b.support.history&&window.location.href!==a?history.pushState({customize:a},"",a):!b.support.history&&b.support.hashchange&&c&&(window.location.hash="wp_customize=on&"+c),this.trigger("open")},opened:function(){c.body.addClass("customize-active full-overlay-active").attr("aria-busy","true")},close:function(){if(this.active){if(!this.saved()&&!confirm(c.settings.l10n.saveAlert))return void history.forward();this.active=!1,this.trigger("close"),this.originalDocumentTitle&&(document.title=this.originalDocumentTitle)}},closed:function(){c.iframe.remove(),c.messenger.destroy(),c.iframe=null,c.messenger=null,c.saved=null,c.body.removeClass("customize-active full-overlay-active").removeClass("customize-loading"),b(window).off("beforeunload",c.beforeunload),c.link&&c.link.focus()},loaded:function(){c.body.removeClass("customize-loading").attr("aria-busy","false")},overlay:{show:function(){this.element.fadeIn(200,c.opened)},hide:function(){this.element.fadeOut(200,c.closed)}}}),b(function(){c.settings=_wpCustomizeLoaderSettings,c.initialize()}),d.Loader=c}(wp,jQuery);