From b25006231146f919b36d41445b4bc9d30ff8f053 Mon Sep 17 00:00:00 2001
From: Dominik Schilling <dominikschilling+git@gmail.com>
Date: Tue, 11 Nov 2014 22:29:23 +0000
Subject: [PATCH] Customizer: When navigating around the site within the
 Customizer preview, update the document title.

props westonruter.
fixes #28542.
Built from https://develop.svn.wordpress.org/trunk@30306


git-svn-id: http://core.svn.wordpress.org/trunk@30305 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 wp-admin/customize.php                  | 18 ++++++++++++++----
 wp-admin/js/customize-controls.js       | 20 ++++++++++++++++++++
 wp-admin/js/customize-controls.min.js   |  2 +-
 wp-includes/js/customize-loader.js      | 17 +++++++++++++----
 wp-includes/js/customize-loader.min.js  |  2 +-
 wp-includes/js/customize-preview.js     | 11 +++++++----
 wp-includes/js/customize-preview.min.js |  2 +-
 wp-includes/version.php                 |  2 +-
 8 files changed, 58 insertions(+), 16 deletions(-)

diff --git a/wp-admin/customize.php b/wp-admin/customize.php
index 1f85ec6c75..7ec8f90aed 100644
--- a/wp-admin/customize.php
+++ b/wp-admin/customize.php
@@ -76,14 +76,23 @@ endif;
 
 $is_ios = wp_is_mobile() && preg_match( '/iPad|iPod|iPhone/', $_SERVER['HTTP_USER_AGENT'] );
 
-if ( $is_ios )
+if ( $is_ios ) {
 	$body_class .= ' ios';
+}
 
-if ( is_rtl() )
-	$body_class .=  ' rtl';
+if ( is_rtl() ) {
+	$body_class .= ' rtl';
+}
 $body_class .= ' locale-' . sanitize_html_class( strtolower( str_replace( '_', '-', get_locale() ) ) );
 
-$admin_title = sprintf( __( '%1$s &#8212; WordPress' ), strip_tags( sprintf( __( 'Customize %s' ), $wp_customize->theme()->display('Name') ) ) );
+if ( $wp_customize->is_theme_active() ) {
+	$document_title_tmpl = _x( 'Customize: %s', 'Placeholder is the document title from the preview' );
+} else {
+	$document_title_tmpl = _x( 'Live Preview: %s', 'Placeholder is the document title from the preview' );
+}
+$document_title_tmpl = html_entity_decode( $document_title_tmpl, ENT_QUOTES, 'UTF-8' ); // because exported to JS and assigned to document.title
+$admin_title = sprintf( $document_title_tmpl, __( 'Loading&hellip;' ) );
+
 ?><title><?php echo $admin_title; ?></title>
 
 <script type="text/javascript">
@@ -253,6 +262,7 @@ do_action( 'customize_controls_print_scripts' );
 			'preview' => wp_create_nonce( 'preview-customize_' . $wp_customize->get_stylesheet() )
 		),
 		'autofocus' => array(),
+		'documentTitleTmpl' => $document_title_tmpl,
 	);
 
 	// Prepare Customize Setting objects to pass to Javascript.
diff --git a/wp-admin/js/customize-controls.js b/wp-admin/js/customize-controls.js
index 66d63bd13c..83ac3f5669 100644
--- a/wp-admin/js/customize-controls.js
+++ b/wp-admin/js/customize-controls.js
@@ -1499,6 +1499,21 @@
 		};
 	}());
 
+	/**
+	 * Set the document title of the customizer
+	 *
+	 * @param {string} documentTitle
+	 */
+	api.setDocumentTitle = function ( documentTitle ) {
+		var tmpl, title;
+		tmpl = api.settings.documentTitleTmpl;
+		title = tmpl.replace( '%s', documentTitle );
+		document.title = title;
+		if ( window !== window.parent ) {
+			window.parent.document.title = document.title;
+		}
+	};
+
 	/**
 	 * @constructor
 	 * @augments wp.customize.Messenger
@@ -1617,6 +1632,11 @@
 
 			// Update the URL when the iframe sends a URL message.
 			this.bind( 'url', this.previewUrl );
+
+			// Update the document title when the preview changes
+			this.bind( 'documentTitle', function ( title ) {
+				api.setDocumentTitle( title );
+			} );
 		},
 
 		query: function() {},
diff --git a/wp-admin/js/customize-controls.min.js b/wp-admin/js/customize-controls.min.js
index e060df8c8a..64af5f33c9 100644
--- a/wp-admin/js/customize-controls.min.js
+++ b/wp-admin/js/customize-controls.min.js
@@ -1 +1 @@
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keydown",".dropdown",function(b){f(b)||(b.preventDefault(),d||a.container.toggleClass("open"),a.container.hasClass("open")&&a.container.parent().parent().find("li.library-selected").focus(),d=!0,setTimeout(function(){d=!1},400))}),this.setting.bind(e),e(this.setting())},renderContent:function(){var a,c=this;0!==b("#tmpl-"+c.templateSelector).length&&(a=wp.template(c.templateSelector),a&&c.container&&c.container.append(a(c.params)))}}),i.ColorControl=i.Control.extend({ready:function(){var a=this,b=this.container.find(".color-picker-hex");b.val(a.setting()).wpColorPicker({change:function(){a.setting.set(b.wpColorPicker("color"))},clear:function(){a.setting.set(!1)}}),this.setting.bind(function(a){b.val(a),b.wpColorPicker("color",a)})}}),i.UploadControl=i.Control.extend({ready:function(){var a=this;this.params.removed=this.params.removed||"",this.success=b.proxy(this.success,this),this.uploader=b.extend({container:this.container,browser:this.container.find(".upload"),dropzone:this.container.find(".upload-dropzone"),success:this.success,plupload:{},params:{}},this.uploader||{}),a.params.extensions&&(a.uploader.plupload.filters=[{title:i.l10n.allowedFiles,extensions:a.params.extensions}]),a.params.context&&(a.uploader.params["post_data[context]"]=this.params.context),i.settings.theme.stylesheet&&(a.uploader.params["post_data[theme]"]=i.settings.theme.stylesheet),this.uploader=new wp.Uploader(this.uploader),this.remover=this.container.find(".remove"),this.remover.on("click keydown",function(b){f(b)||(a.setting.set(a.params.removed),b.preventDefault())}),this.removerVisibility=b.proxy(this.removerVisibility,this),this.setting.bind(this.removerVisibility),this.removerVisibility(this.setting.get())},success:function(a){this.setting.set(a.get("url"))},removerVisibility:function(a){this.remover.toggle(a!=this.params.removed)}}),i.ImageControl=i.UploadControl.extend({ready:function(){var a,c=this;this.uploader={init:function(){var a,b;this.supports.dragdrop||(a=c.container.find(".upload-fallback"),b=a.children().detach(),this.browser.detach().empty().append(b),a.append(this.browser).show())}},i.UploadControl.prototype.ready.call(this),this.thumbnail=this.container.find(".preview-thumbnail img"),this.thumbnailSrc=b.proxy(this.thumbnailSrc,this),this.setting.bind(this.thumbnailSrc),this.library=this.container.find(".library"),this.tabs={},a=this.library.find(".library-content"),this.library.children("ul").children("li").each(function(){var d=b(this),e=d.data("customizeTab"),f=a.filter('[data-customize-tab="'+e+'"]');c.tabs[e]={both:d.add(f),link:d,panel:f}}),this.library.children("ul").on("click keydown","li",function(a){if(!f(a)){var d=b(this).data("customizeTab"),e=c.tabs[d];a.preventDefault(),e.link.hasClass("library-selected")||(c.selected.both.removeClass("library-selected"),c.selected=e,c.selected.both.addClass("library-selected"))}}),this.library.on("click keydown","a",function(a){if(!f(a)){var d=b(this).data("customizeImageValue");d&&(c.setting.set(d),a.preventDefault())}}),this.tabs.uploaded&&(this.tabs.uploaded.target=this.library.find(".uploaded-target"),this.tabs.uploaded.panel.find(".thumbnail").length||this.tabs.uploaded.both.addClass("hidden")),a.each(function(){var a=c.tabs[b(this).data("customizeTab")];return a.link.hasClass("hidden")?void 0:(c.selected=a,a.both.addClass("library-selected"),!1)}),this.dropdownInit()},success:function(a){i.UploadControl.prototype.success.call(this,a),this.tabs.uploaded&&this.tabs.uploaded.target.length&&(this.tabs.uploaded.both.removeClass("hidden"),a.element=b('<a href="#" class="thumbnail"></a>').data("customizeImageValue",a.get("url")).append('<img src="'+a.get("url")+'" />').appendTo(this.tabs.uploaded.target))},thumbnailSrc:function(a){/^(https?:)?\/\//.test(a)?this.thumbnail.prop("src",a).show():this.thumbnail.hide()}}),i.HeaderControl=i.Control.extend({ready:function(){this.btnRemove=b("#customize-control-header_image .actions .remove"),this.btnNew=b("#customize-control-header_image .actions .new"),_.bindAll(this,"openMedia","removeImage"),this.btnNew.on("click",this.openMedia),this.btnRemove.on("click",this.removeImage),i.HeaderTool.currentHeader=new i.HeaderTool.ImageModel,new i.HeaderTool.CurrentView({model:i.HeaderTool.currentHeader,el:".current .container"}),new i.HeaderTool.ChoiceListView({collection:i.HeaderTool.UploadsList=new i.HeaderTool.ChoiceList,el:".choices .uploaded .list"}),new i.HeaderTool.ChoiceListView({collection:i.HeaderTool.DefaultsList=new i.HeaderTool.DefaultsList,el:".choices .default .list"}),i.HeaderTool.combinedList=i.HeaderTool.CombinedList=new i.HeaderTool.CombinedList([i.HeaderTool.UploadsList,i.HeaderTool.DefaultsList])},calculateImageSelectOptions:function(a,b){var c,d,e,f,g,h,j=parseInt(_wpCustomizeHeader.data.width,10),k=parseInt(_wpCustomizeHeader.data.height,10),l=!!parseInt(_wpCustomizeHeader.data["flex-width"],10),m=!!parseInt(_wpCustomizeHeader.data["flex-height"],10);return g=a.get("width"),f=a.get("height"),this.headerImage=new i.HeaderTool.ImageModel,this.headerImage.set({themeWidth:j,themeHeight:k,themeFlexWidth:l,themeFlexHeight:m,imageWidth:g,imageHeight:f}),b.set("canSkipCrop",!this.headerImage.shouldBeCropped()),c=j/k,d=g,e=f,d/e>c?(k=e,j=k*c):(j=d,k=j/c),h={handles:!0,keys:!0,instance:!0,persistent:!0,imageWidth:g,imageHeight:f,x1:0,y1:0,x2:j,y2:k},m===!1&&l===!1&&(h.aspectRatio=j+":"+k),m===!1&&(h.maxHeight=k),l===!1&&(h.maxWidth=j),h},openMedia:function(a){var b=_wpMediaViewsL10n;a.preventDefault(),this.frame=wp.media({button:{text:b.selectAndCrop,close:!1},states:[new wp.media.controller.Library({title:b.chooseImage,library:wp.media.query({type:"image"}),multiple:!1,priority:20,suggestedWidth:_wpCustomizeHeader.data.width,suggestedHeight:_wpCustomizeHeader.data.height}),new wp.media.controller.Cropper({imgSelectOptions:this.calculateImageSelectOptions})]}),this.frame.on("select",this.onSelect,this),this.frame.on("cropped",this.onCropped,this),this.frame.on("skippedcrop",this.onSkippedCrop,this),this.frame.open()},onSelect:function(){this.frame.setState("cropper")},onCropped:function(a){var b=a.post_content,c=a.attachment_id,d=a.width,e=a.height;this.setImageFromURL(b,c,d,e)},onSkippedCrop:function(a){var b=a.get("url"),c=a.get("width"),d=a.get("height");this.setImageFromURL(b,a.id,c,d)},setImageFromURL:function(a,b,c,d){var e,f={};f.url=a,f.thumbnail_url=a,f.timestamp=_.now(),b&&(f.attachment_id=b),c&&(f.width=c),d&&(f.height=d),e=new i.HeaderTool.ImageModel({header:f,choice:a.split("/").pop()}),i.HeaderTool.UploadsList.add(e),i.HeaderTool.currentHeader.set(e.toJSON()),e.save(),e.importImage()},removeImage:function(){i.HeaderTool.currentHeader.trigger("hide"),i.HeaderTool.CombinedList.trigger("control:removeImage")}}),i.defaultConstructor=i.Setting,i.control=new i.Values({defaultConstructor:i.Control}),i.section=new i.Values({defaultConstructor:i.Section}),i.panel=new i.Values({defaultConstructor:i.Panel}),i.PreviewFrame=i.Messenger.extend({sensitivity:2e3,initialize:function(a,c){var d=b.Deferred();d.promise(this),this.container=a.container,this.signature=a.signature,b.extend(a,{channel:i.PreviewFrame.uuid()}),i.Messenger.prototype.initialize.call(this,a,c),this.add("previewUrl",a.previewUrl),this.query=b.extend(a.query||{},{customize_messenger_channel:this.channel()}),this.run(d)},run:function(a){var c=this,d=!1,e=!1;this._ready&&this.unbind("ready",this._ready),this._ready=function(){e=!0,d&&a.resolveWith(c)},this.bind("ready",this._ready),this.bind("ready",function(a){if(a){var c={panel:a.activePanels,section:a.activeSections,control:a.activeControls};b.each(c,function(a,c){c&&b.each(c,function(b,c){var d=i[a](b);d&&d.active(c)})})}}),this.request=b.ajax(this.previewUrl(),{type:"POST",data:this.query,xhrFields:{withCredentials:!0}}),this.request.fail(function(){a.rejectWith(c,["request failure"])}),this.request.done(function(f){var g,h=c.request.getResponseHeader("Location"),i=c.signature;return h&&h!==c.previewUrl()?void a.rejectWith(c,["redirect",h]):"0"===f?void c.login(a):"-1"===f?void a.rejectWith(c,["cheatin"]):(g=f.lastIndexOf(i),-1===g||g<f.lastIndexOf("</html>")?void a.rejectWith(c,["unsigned"]):(f=f.slice(0,g)+f.slice(g+i.length),c.iframe=b("<iframe />").appendTo(c.container),c.iframe.one("load",function(){d=!0,e?a.resolveWith(c):setTimeout(function(){a.rejectWith(c,["ready timeout"])},c.sensitivity)}),c.targetWindow(c.iframe[0].contentWindow),c.targetWindow().document.open(),c.targetWindow().document.write(f),void c.targetWindow().document.close()))})},login:function(a){var c,d=this;return c=function(){a.rejectWith(d,["logged out"])},this.triedLogin?c():void b.get(i.settings.url.ajax,{action:"logged-in"}).fail(c).done(function(e){var f;"1"!==e&&c(),f=b('<iframe src="'+d.previewUrl()+'" />').hide(),f.appendTo(d.container),f.load(function(){d.triedLogin=!0,f.remove(),d.run(a)})})},destroy:function(){i.Messenger.prototype.destroy.call(this),this.request.abort(),this.iframe&&this.iframe.remove(),delete this.request,delete this.iframe,delete this.targetWindow}}),function(){var a=0;i.PreviewFrame.uuid=function(){return"preview-"+a++}}(),i.setDocumentTitle=function(a){var b,c;b=i.settings.documentTitleTmpl,c=b.replace("%s",a),document.title=c,window!==window.parent&&(window.parent.document.title=document.title)},i.Previewer=i.Messenger.extend({refreshBuffer:250,initialize:function(a,c){var d=this,e=/^https?/;b.extend(this,c||{}),this.deferred={active:b.Deferred()},this.refresh=function(a){var b,c=a.refresh,d=function(){b=null,c.call(a)};return function(){if("number"!=typeof b){if(!a.loading)return d();a.abort()}clearTimeout(b),b=setTimeout(d,a.refreshBuffer)}}(this),this.container=i.ensure(a.container),this.allowedUrls=a.allowedUrls,this.signature=a.signature,a.url=window.location.href,i.Messenger.prototype.initialize.call(this,a),this.add("scheme",this.origin()).link(this.origin).setter(function(a){var b=a.match(e);return b?b[0]:""}),this.add("previewUrl",a.previewUrl).setter(function(a){var c;return/\/wp-admin(\/|$)/.test(a.replace(/[#?].*$/,""))?null:(b.each([a.replace(e,d.scheme()),a],function(a,e){return b.each(d.allowedUrls,function(a,b){var d;return b=b.replace(/\/+$/,""),d=e.replace(b,""),0===e.indexOf(b)&&/^([/#?]|$)/.test(d)?(c=e,!1):void 0}),c?!1:void 0}),c?c:null)}),this.previewUrl.bind(this.refresh),this.scroll=0,this.bind("scroll",function(a){this.scroll=a}),this.bind("url",this.previewUrl),this.bind("documentTitle",function(a){i.setDocumentTitle(a)})},query:function(){},abort:function(){this.loading&&(this.loading.destroy(),delete this.loading)},refresh:function(){var a=this;this.abort(),this.loading=new i.PreviewFrame({url:this.url(),previewUrl:this.previewUrl(),query:this.query()||{},container:this.container,signature:this.signature}),this.loading.done(function(){this.bind("synced",function(){a.preview&&a.preview.destroy(),a.preview=this,delete a.loading,a.targetWindow(this.targetWindow()),a.channel(this.channel()),a.deferred.active.resolve(),a.send("active")}),this.send("sync",{scroll:a.scroll,settings:i.get()})}),this.loading.fail(function(b,c){"redirect"===b&&c&&a.previewUrl(c),"logged out"===b&&(a.preview&&(a.preview.destroy(),delete a.preview),a.login().done(a.refresh)),"cheatin"===b&&a.cheatin()})},login:function(){var a,c,d,e=this;return this._login?this._login:(a=b.Deferred(),this._login=a.promise(),c=new i.Messenger({channel:"login",url:i.settings.url.login}),d=b('<iframe src="'+i.settings.url.login+'" />').appendTo(this.container),c.targetWindow(d[0].contentWindow),c.bind("login",function(){d.remove(),c.destroy(),delete e._login,a.resolve()}),this._login)},cheatin:function(){b(document.body).empty().addClass("cheatin").append("<p>"+i.l10n.cheatin+"</p>")}}),i.controlConstructor={color:i.ColorControl,upload:i.UploadControl,image:i.ImageControl,header:i.HeaderControl},i.panelConstructor={},i.sectionConstructor={},b(function(){if(i.settings=window._wpCustomizeSettings,i.l10n=window._wpCustomizeControlsL10n,i.settings){if(!b.support.postMessage||!b.support.cors&&i.settings.isCrossDomain)return window.location=i.settings.url.fallback;var a,c,d=b(document.body),e=d.children(".wp-full-overlay"),j=b("#customize-info .theme-name.site-title"),k=b(".customize-controls-close"),l=b("#save");b("#customize-controls").on("keydown",function(a){var c=13===a.which,d=b(a.target);c&&(d.is("input:not([type=button])")||d.is("select"))&&a.preventDefault()}),b("#customize-info").find("> .accordion-section-title").on("click keydown",function(a){if(!f(a)){a.preventDefault();var c=b(this).parent(),d=c.find(".accordion-section-content:first");c.hasClass("cannot-expand")||(c.hasClass("open")?(c.toggleClass("open"),d.slideUp(i.Panel.prototype.defaultExpandedArguments.duration)):(d.slideDown(i.Panel.prototype.defaultExpandedArguments.duration),c.toggleClass("open")))}}),i.previewer=new i.Previewer({container:"#customize-preview",form:"#customize-controls",previewUrl:i.settings.url.preview,allowedUrls:i.settings.url.allowed,signature:"WP_CUSTOMIZER_SIGNATURE"},{nonce:i.settings.nonce,query:function(){var a={};return i.each(function(b,c){b._dirty&&(a[c]=b())}),{wp_customize:"on",theme:i.settings.theme.stylesheet,customized:JSON.stringify(a),nonce:this.nonce.preview}},save:function(){var a,c,e=this,f=b.extend(this.query(),{action:"customize_save",nonce:this.nonce.save}),g=i.state("processing");d.addClass("saving"),c=function(){var a=b.post(i.settings.url.ajax,f);i.trigger("save",a),a.always(function(){d.removeClass("saving")}),a.done(function(a){return"0"===a?(e.preview.iframe.hide(),void e.login().done(function(){e.save(),e.preview.iframe.show()})):"-1"===a?void e.cheatin():(i.each(function(a){a._dirty=!1}),void i.trigger("saved"))})},0===g()?c():(a=function(){0===g()&&(i.state.unbind("change",a),c())},i.state.bind("change",a))}}),i.previewer.bind("nonce",function(a){b.extend(this.nonce,a)}),b.each(i.settings.settings,function(a,b){i.create(a,a,b.value,{transport:b.transport,previewer:i.previewer})}),b.each(i.settings.panels,function(a,b){var c,d=i.panelConstructor[b.type]||i.Panel;c=new d(a,{params:b}),i.panel.add(a,c)}),b.each(i.settings.sections,function(a,b){var c,d=i.sectionConstructor[b.type]||i.Section;c=new d(a,{params:b}),i.section.add(a,c)}),b.each(i.settings.controls,function(a,b){var c,d=i.controlConstructor[b.type]||i.Control;c=new d(a,{params:b,previewer:i.previewer}),i.control.add(a,c)}),_.each(["panel","section","control"],function(a){var b,c=i.settings.autofocus[a];c&&i[a](c)&&(b=i[a](c),b.deferred.ready.done(function(){i.previewer.deferred.active.done(function(){b.focus()})}))}),i.reflowPaneContents=_.bind(function(){var a,c,d,e=[],f=!1;document.activeElement&&(c=b(document.activeElement)),i.panel.each(function(b){var c=b.sections(),d=_.pluck(c,"container");e.push(b),a=b.container.find("ul:first"),g(d,a.children("[id]"))||(_(c).each(function(b){a.append(b.container)}),f=!0)}),i.section.each(function(b){var c=b.controls(),d=_.pluck(c,"container");b.panel()||e.push(b),a=b.container.find("ul:first"),g(d,a.children("[id]"))||(_(c).each(function(b){a.append(b.container)}),f=!0)}),e.sort(h),d=_.pluck(e,"container"),a=b("#customize-theme-controls").children("ul"),g(d,a.children())||(_(e).each(function(b){a.append(b.container)}),f=!0),i.panel.each(function(a){var b=a.active();a.active.callbacks.fireWith(a.active,[b,b])}),i.section.each(function(a){var b=a.active();a.active.callbacks.fireWith(a.active,[b,b])}),f&&c&&c.focus()},i),i.bind("ready",i.reflowPaneContents),i.reflowPaneContents=_.debounce(i.reflowPaneContents,100),b([i.panel,i.section,i.control]).each(function(a,b){b.bind("add",i.reflowPaneContents),b.bind("change",i.reflowPaneContents),b.bind("remove",i.reflowPaneContents)}),i.previewer.previewUrl()?i.previewer.refresh():i.previewer.previewUrl(i.settings.url.home),function(){var a=new i.Values,b=a.create("saved"),c=a.create("activated"),d=a.create("processing");a.bind("change",function(){c()?b()?(l.val(i.l10n.saved).prop("disabled",!0),k.find(".screen-reader-text").text(i.l10n.close)):(l.val(i.l10n.save).prop("disabled",!1),k.find(".screen-reader-text").text(i.l10n.cancel)):(l.val(i.l10n.activate).prop("disabled",!1),k.find(".screen-reader-text").text(i.l10n.cancel))}),b(!0),c(i.settings.theme.active),d(0),i.bind("change",function(){a("saved").set(!1)}),i.bind("saved",function(){a("saved").set(!0),a("activated").set(!0)}),c.bind(function(a){a&&i.trigger("activated")}),i.state=a}(),l.click(function(a){i.previewer.save(),a.preventDefault()}).keydown(function(a){9!==a.which&&(13===a.which&&i.previewer.save(),a.preventDefault())}),b("#customize-header-actions").on("click keydown",".control-panel-back",function(a){f(a)||(a.preventDefault(),i.panel.each(function(a){a.collapse()}))}),k.keydown(function(a){9!==a.which&&(13===a.which&&this.click(),a.preventDefault())}),b(".upload-dropzone a.upload").keydown(function(a){13===a.which&&this.click()}),b(".collapse-sidebar").on("click keydown",function(a){f(a)||(e.toggleClass("collapsed").toggleClass("expanded"),a.preventDefault())}),j.length&&b("#customize-control-blogname input").on("input",function(){j.text(this.value)}),a=new i.Messenger({url:i.settings.url.parent,channel:"loader"}),a.bind("back",function(){k.on("click.customize-controls-close",function(b){b.preventDefault(),a.send("close")})}),b(window).on("beforeunload",function(){return i.state("saved")()?void 0:i.l10n.saveAlert}),b.each(["saved","change"],function(b,c){i.bind(c,function(){a.send(c)})}),i.bind("activated",function(){a.targetWindow()?a.send("activated",i.settings.url.activated):i.settings.url.activated&&(window.location=i.settings.url.activated)}),a.send("ready"),b.each({background_image:{controls:["background_repeat","background_position_x","background_attachment"],callback:function(a){return!!a}},show_on_front:{controls:["page_on_front","page_for_posts"],callback:function(a){return"page"===a}},header_textcolor:{controls:["header_textcolor"],callback:function(a){return"blank"!==a}}},function(a,c){i(a,function(a){b.each(c.controls,function(b,d){i.control(d,function(b){var d=function(a){b.container.toggle(c.callback(a))};d(a.get()),a.bind(d)})})})}),i.control("display_header_text",function(a){var b="";a.elements[0].unsync(i("header_textcolor")),a.element=new i.Element(a.container.find("input")),a.element.set("blank"!==a.setting()),a.element.bind(function(c){c||(b=i("header_textcolor").get()),a.setting.set(c?b:"blank")}),a.setting.bind(function(b){a.element.set("blank"!==b)})}),i.trigger("ready"),c=k,c.focus(),setTimeout(function(){c.focus()},200)}})}(wp,jQuery);
\ No newline at end of file
diff --git a/wp-includes/js/customize-loader.js b/wp-includes/js/customize-loader.js
index f0dbfdc8a6..07f21966a9 100644
--- a/wp-includes/js/customize-loader.js
+++ b/wp-includes/js/customize-loader.js
@@ -78,7 +78,7 @@ window.wp = window.wp || {};
 				Loader.open( Loader.settings.url + '?' + hash );
 			}
 
-			if ( ! hash && ! $.support.history ){
+			if ( ! hash && ! $.support.history ) {
 				Loader.close();
 			}
 		},
@@ -105,6 +105,9 @@ window.wp = window.wp || {};
 				return window.location = src;
 			}
 
+			// Store the document title prior to opening the Live Preview
+			this.originalDocumentTitle = document.title;
+
 			this.active = true;
 			this.body.addClass('customize-loading');
 
@@ -134,7 +137,7 @@ window.wp = window.wp || {};
 				} else {
 					Loader.close();
 				}
-			} );
+			});
 
 			// Prompt AYS dialog when navigating away
 			$( window ).on( 'beforeunload', this.beforeunload );
@@ -158,15 +161,16 @@ window.wp = window.wp || {};
 		},
 
 		pushState: function ( src ) {
-			var hash;
+			var hash = src.split( '?' )[1];
 
 			// Ensure we don't call pushState if the user hit the forward button.
 			if ( $.support.history && window.location.href !== src ) {
 				history.pushState( { customize: src }, '', src );
 			} else if ( ! $.support.history && $.support.hashchange && hash ) {
-				hash = src.split( '?' )[1];
 				window.location.hash = 'wp_customize=on&' + hash;
 			}
+
+			this.trigger( 'open' );
 		},
 
 		/**
@@ -195,6 +199,11 @@ window.wp = window.wp || {};
 
 			this.trigger( 'close' );
 
+			// Restore document title prior to opening the Live Preview
+			if ( this.originalDocumentTitle ) {
+				document.title = this.originalDocumentTitle;
+			}
+
 			// Return focus to link that was originally clicked.
 			if ( this.link ) {
 				this.link.focus();
diff --git a/wp-includes/js/customize-loader.min.js b/wp-includes/js/customize-loader.min.js
index fc32b05b75..f9f03b7a8a 100644
--- a/wp-includes/js/customize-loader.min.js
+++ b/wp-includes/js/customize-loader.min.js
@@ -1 +1 @@
-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.active=!0,this.body.addClass("customize-loading"),this.saved=new d.Value(!0),this.iframe=b("<iframe />",{src:a}).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("activated",function(a){a&&(window.location=a)}),this.messenger.bind("saved",function(){c.saved(!0)}),this.messenger.bind("change",function(){c.saved(!1)}),this.pushState(a),this.trigger("open")}},pushState:function(a){var c;b.support.history&&window.location.href!==a?history.pushState({customize:a},"",a):!b.support.history&&b.support.hashchange&&c&&(c=a.split("?")[1],window.location.hash="wp_customize=on&"+c)},opened:function(){c.body.addClass("customize-active full-overlay-active")},close:function(){if(this.active){if(!this.saved()&&!confirm(c.settings.l10n.saveAlert))return void history.forward();this.active=!1,this.trigger("close"),this.link&&this.link.focus()}},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)},loaded:function(){c.body.removeClass("customize-loading")},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);
\ No newline at end of file
+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}).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("activated",function(a){a&&(window.location=a)}),this.messenger.bind("saved",function(){c.saved(!0)}),this.messenger.bind("change",function(){c.saved(!1)}),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")},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),this.link&&this.link.focus()}},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)},loaded:function(){c.body.removeClass("customize-loading")},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);
\ No newline at end of file
diff --git a/wp-includes/js/customize-preview.js b/wp-includes/js/customize-preview.js
index 1a82565ec4..ea9b4b364e 100644
--- a/wp-includes/js/customize-preview.js
+++ b/wp-includes/js/customize-preview.js
@@ -101,10 +101,13 @@
 			preview.send( 'synced' );
 		});
 
-        preview.bind( 'active', function() {
-            if ( api.settings.nonce )
-                preview.send( 'nonce', api.settings.nonce );
-        });
+		preview.bind( 'active', function() {
+			if ( api.settings.nonce ) {
+				preview.send( 'nonce', api.settings.nonce );
+			}
+
+			preview.send( 'documentTitle', document.title );
+		});
 
 		preview.send( 'ready', {
 			activePanels: api.settings.activePanels,
diff --git a/wp-includes/js/customize-preview.min.js b/wp-includes/js/customize-preview.min.js
index 1b73271172..eab4df252e 100644
--- a/wp-includes/js/customize-preview.min.js
+++ b/wp-includes/js/customize-preview.min.js
@@ -1 +1 @@
-!function(a,b){var c,d=wp.customize;c=function(a,b,c){var d;return function(){var e=arguments;c=c||this,clearTimeout(d),d=setTimeout(function(){d=null,a.apply(c,e)},b)}},d.Preview=d.Messenger.extend({initialize:function(a,e){var f=this;d.Messenger.prototype.initialize.call(this,a,e),this.body=b(document.body),this.body.on("click.preview","a",function(a){a.preventDefault(),f.send("scroll",0),f.send("url",b(this).prop("href"))}),this.body.on("submit.preview","form",function(a){a.preventDefault()}),this.window=b(window),this.window.on("scroll.preview",c(function(){f.send("scroll",f.window.scrollTop())},200)),this.bind("scroll",function(a){f.window.scrollTop(a)})}}),b(function(){if(d.settings=window._wpCustomizeSettings,d.settings){var a,c;a=new d.Preview({url:window.location.href,channel:d.settings.channel}),a.bind("settings",function(a){b.each(a,function(a,b){d.has(a)?d(a).set(b):d.create(a,b)})}),a.trigger("settings",d.settings.values),a.bind("setting",function(a){var b;a=a.slice(),(b=d(a.shift()))&&b.set.apply(b,a)}),a.bind("sync",function(c){b.each(c,function(b,c){a.trigger(b,c)}),a.send("synced")}),a.bind("active",function(){d.settings.nonce&&a.send("nonce",d.settings.nonce)}),a.send("ready",{activePanels:d.settings.activePanels,activeSections:d.settings.activeSections,activeControls:d.settings.activeControls}),c=b.map(["color","image","position_x","repeat","attachment"],function(a){return"background_"+a}),d.when.apply(d,c).done(function(a,c,d,e,f){var g,h=b(document.body),i=b("head"),j=b("#custom-background-css");g=function(){var g="";h.toggleClass("custom-background",!(!a()&&!c())),a()&&(g+="background-color: "+a()+";"),c()&&(g+='background-image: url("'+c()+'");',g+="background-position: top "+d()+";",g+="background-repeat: "+e()+";",g+="background-attachment: "+f()+";"),j.remove(),j=b('<style type="text/css" id="custom-background-css">body.custom-background { '+g+" }</style>").appendTo(i)},b.each(arguments,function(){this.bind(g)})})}})}(wp,jQuery);
\ No newline at end of file
+!function(a,b){var c,d=wp.customize;c=function(a,b,c){var d;return function(){var e=arguments;c=c||this,clearTimeout(d),d=setTimeout(function(){d=null,a.apply(c,e)},b)}},d.Preview=d.Messenger.extend({initialize:function(a,e){var f=this;d.Messenger.prototype.initialize.call(this,a,e),this.body=b(document.body),this.body.on("click.preview","a",function(a){a.preventDefault(),f.send("scroll",0),f.send("url",b(this).prop("href"))}),this.body.on("submit.preview","form",function(a){a.preventDefault()}),this.window=b(window),this.window.on("scroll.preview",c(function(){f.send("scroll",f.window.scrollTop())},200)),this.bind("scroll",function(a){f.window.scrollTop(a)})}}),b(function(){if(d.settings=window._wpCustomizeSettings,d.settings){var a,c;a=new d.Preview({url:window.location.href,channel:d.settings.channel}),a.bind("settings",function(a){b.each(a,function(a,b){d.has(a)?d(a).set(b):d.create(a,b)})}),a.trigger("settings",d.settings.values),a.bind("setting",function(a){var b;a=a.slice(),(b=d(a.shift()))&&b.set.apply(b,a)}),a.bind("sync",function(c){b.each(c,function(b,c){a.trigger(b,c)}),a.send("synced")}),a.bind("active",function(){d.settings.nonce&&a.send("nonce",d.settings.nonce),a.send("documentTitle",document.title)}),a.send("ready",{activePanels:d.settings.activePanels,activeSections:d.settings.activeSections,activeControls:d.settings.activeControls}),c=b.map(["color","image","position_x","repeat","attachment"],function(a){return"background_"+a}),d.when.apply(d,c).done(function(a,c,d,e,f){var g,h=b(document.body),i=b("head"),j=b("#custom-background-css");g=function(){var g="";h.toggleClass("custom-background",!(!a()&&!c())),a()&&(g+="background-color: "+a()+";"),c()&&(g+='background-image: url("'+c()+'");',g+="background-position: top "+d()+";",g+="background-repeat: "+e()+";",g+="background-attachment: "+f()+";"),j.remove(),j=b('<style type="text/css" id="custom-background-css">body.custom-background { '+g+" }</style>").appendTo(i)},b.each(arguments,function(){this.bind(g)})})}})}(wp,jQuery);
\ No newline at end of file
diff --git a/wp-includes/version.php b/wp-includes/version.php
index d6aa52d289..98b5e6a675 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.1-alpha-30305';
+$wp_version = '4.1-alpha-30306';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.