diff --git a/wp-admin/js/theme.js b/wp-admin/js/theme.js
index 147b1c4ee1..f2fdf0d84f 100644
--- a/wp-admin/js/theme.js
+++ b/wp-admin/js/theme.js
@@ -269,6 +269,9 @@ themes.Collection = Backbone.Collection.extend({
 					self.add( data.themes );
 					self.trigger( 'query:success' );
 
+					// We are done loading themes for now.
+					self.loadingThemes = false;
+
 				}).fail( function() {
 					self.trigger( 'query:fail' );
 				});
@@ -331,7 +334,10 @@ themes.Collection = Backbone.Collection.extend({
 				}
 			}
 		});
-	}
+	},
+
+	// Static status controller for when we are loading themes.
+	loadingThemes: false
 });
 
 // This is the view that controls each theme item
@@ -1148,7 +1154,17 @@ themes.view.Installer = themes.view.Appearance.extend({
 
 		// Bump `collection.currentQuery.page` and request more themes if we hit the end of the page.
 		this.listenTo( this, 'theme:end', function() {
+
+			// Make sure we are not already loading
+			if ( self.collection.loadingThemes ) {
+				return;
+			}
+
+			// Set loadingThemes to true and bump page instance of currentQuery.
+			self.collection.loadingThemes = true;
 			self.collection.currentQuery.page++;
+
+			// Use currentQuery.page to build the themes request.
 			_.extend( self.collection.currentQuery.request, { page: self.collection.currentQuery.page } );
 			self.collection.query( self.collection.currentQuery.request );
 		});
diff --git a/wp-admin/js/theme.min.js b/wp-admin/js/theme.min.js
index aa4f5f08a3..3dbe3d2bf6 100644
--- a/wp-admin/js/theme.min.js
+++ b/wp-admin/js/theme.min.js
@@ -1 +1 @@
-window.wp=window.wp||{},function(a){var b,c;b=wp.themes=wp.themes||{},b.data=_wpThemeSettings,c=b.data.l10n,b.isInstall=!!b.data.settings.isInstall,_.extend(b,{model:{},view:{},routes:{},router:{},template:wp.template}),b.Model=Backbone.Model.extend({initialize:function(){var c,d;c={action:"install-theme",theme:this.get("slug"),_wpnonce:b.data.settings._nonceInstall},c=b.data.settings.updateURI+"?"+a.param(c),d={tab:"theme-information",theme:this.get("slug")},d=b.data.settings.installURI+"?"+a.param(d),this.set({installURI:c,previewURI:d,id:this.get("slug")||this.get("id")})}}),b.view.Appearance=wp.Backbone.View.extend({el:"#wpbody-content .wrap .theme-browser",window:a(window),page:0,initialize:function(a){_.bindAll(this,"scroller"),this.SearchView=a.SearchView?a.SearchView:b.view.Search,this.window.bind("scroll",_.throttle(this.scroller,300))},render:function(){this.view=new b.view.Themes({collection:this.collection,parent:this}),this.search(),this.view.render(),this.$el.empty().append(this.view.el).addClass("rendered"),this.$el.append('<br class="clear"/>')},searchContainer:a("#wpbody h2:first"),search:function(){var d,e=this;1!==b.data.themes.length&&(d=new this.SearchView({collection:e.collection,parent:this}),d.render(),this.searchContainer.append(a.parseHTML('<label class="screen-reader-text" for="theme-search-input">'+c.search+"</label>")).append(d.el))},scroller:function(){var a,b,c=this;a=this.window.scrollTop()+c.window.height(),b=c.$el.offset().top+c.$el.outerHeight(!1)-c.window.height(),b=Math.round(.9*b),a>b&&this.trigger("theme:scroll")}}),b.Collection=Backbone.Collection.extend({model:b.Model,terms:"",doSearch:function(a){this.terms!==a&&(this.terms=a,this.terms.length>0&&this.search(this.terms),""===this.terms&&this.reset(b.data.themes),this.trigger("update"))},search:function(a){var c,d,e;this.reset(b.data.themes,{silent:!0}),a=a.replace(/[-\/\\^$*+?.()|[\]{}]/g,"\\$&"),a=a.replace(/ /g,")(?=.*"),c=new RegExp("^(?=.*"+a+").+","i"),d=this.filter(function(b){return e=_.union(b.get("name"),b.get("id"),b.get("description"),b.get("author"),b.get("tags")),c.test(b.get("author"))&&a.length>2&&b.set("displayAuthor",!0),c.test(e)}),this.reset(d)},paginate:function(a){var b=this;return a=a||0,b=_(b.rest(20*a)),b=_(b.first(20))},query:function(a){var b,c,d,e=this.queries,f=this;if(b=_.find(e,function(b){return _.isEqual(b.request,a)}),c=_.has(a,"page"),c||(this.currentQuery.page=1),b){if(c)return this.apiCall(a,c).done(function(a){f.add(a.themes),f.trigger("query:success")}).fail(function(){f.trigger("query:fail")});this.reset(b.themes),this.trigger("update")}else b=this.apiCall(a).done(function(b){f.reset(b.themes),d=b.info.results,f.trigger("update"),f.trigger("query:success",d),e.push({themes:b.themes,request:a})}).fail(function(){f.trigger("query:fail")})},queries:[],currentQuery:{page:1,request:{}},apiCall:function(b,c){return this.currentQuery.request=b,a.ajax({url:"https://api.wordpress.org/themes/info/1.1/?action=query_themes",dataType:"json",type:"POST",crossDomain:!0,data:{action:"query_themes",request:_.extend({per_page:72,fields:{description:!0,tested:!0,requires:!0,rating:!0,downloaded:!0,downloadLink:!0,last_updated:!0,homepage:!0,num_ratings:!0}},b)},beforeSend:function(){c||a("body").addClass("loading-themes")}})}}),b.view.Theme=wp.Backbone.View.extend({className:"theme",state:"grid",html:b.template("theme"),events:{click:b.isInstall?"preview":"expand","click .preview":"preview",keydown:b.isInstall?"preview":"expand",touchend:b.isInstall?"preview":"expand",keyup:"addFocus",touchmove:"preventExpand"},touchDrag:!1,render:function(){var a=this.model.toJSON();this.$el.html(this.html(a)).attr({tabindex:0,"aria-describedby":a.id+"-action "+a.id+"-name"}),this.activeTheme(),this.model.get("displayAuthor")&&this.$el.addClass("display-author")},activeTheme:function(){this.model.get("active")&&this.$el.addClass("active")},addFocus:function(){var b=a(":focus").hasClass("theme")?a(":focus"):a(":focus").parents(".theme");a(".theme.focus").removeClass("focus"),b.addClass("focus")},expand:function(c){var d=this;return c=c||window.event,"keydown"!==c.type||13===c.which||32===c.which?this.touchDrag===!0?this.touchDrag=!1:void(a(c.target).is(".theme-actions a")||(b.focusedTheme=this.$el,this.trigger("theme:expand",d.model.cid))):void 0},preventExpand:function(){this.touchDrag=!0},preview:function(c){if(this.touchDrag===!0)return this.touchDrag=!1;if(!("keydown"===c.type&&13!==c.which&&32!==c.which||"keydown"===c.type&&13!==c.which&&a(":focus").hasClass("button"))){c.preventDefault(),c=c||window.event;var d=new b.view.Preview({model:this.model});d.render(),a("div.wrap").append(d.el)}}}),b.view.Details=wp.Backbone.View.extend({className:"theme-overlay",events:{click:"collapse","click .delete-theme":"deleteTheme","click .left":"previousTheme","click .right":"nextTheme"},html:b.template("theme-single"),render:function(){var a=this.model.toJSON();this.$el.html(this.html(a)),this.activeTheme(),this.navigation(),this.screenshotCheck(this.$el),this.containFocus(this.$el)},activeTheme:function(){this.$el.toggleClass("active",this.model.get("active"))},containFocus:function(b){var c;_.delay(function(){a(".theme-wrap a.button-primary:visible").focus()},500),b.on("keydown.wp-themes",function(d){9===d.which&&(c=a(d.target),c.is("button.left")&&d.shiftKey?(b.find(".theme-actions a:last-child").focus(),d.preventDefault()):c.is(".theme-actions a:last-child")&&(b.find("button.left").focus(),d.preventDefault()))})},collapse:function(c){var d,e=this;c=c||window.event,1!==b.data.themes.length&&(a(c.target).is(".theme-backdrop")||a(c.target).is(".close")||27===c.keyCode)&&(a("body").addClass("closing-overlay"),this.$el.fadeOut(130,function(){a("body").removeClass("closing-overlay"),e.closeOverlay(),d=document.body.scrollTop,b.router.navigate(b.router.baseUrl("")),document.body.scrollTop=d,b.focusedTheme&&b.focusedTheme.focus()}))},navigation:function(){this.model.cid===this.model.collection.at(0).cid&&this.$el.find(".left").addClass("disabled"),this.model.cid===this.model.collection.at(this.model.collection.length-1).cid&&this.$el.find(".right").addClass("disabled")},closeOverlay:function(){a("body").removeClass("theme-overlay-open"),this.remove(),this.unbind(),this.trigger("theme:collapse")},deleteTheme:function(){return confirm(b.data.settings.confirmDelete)},nextTheme:function(){var a=this;a.trigger("theme:next",a.model.cid)},previousTheme:function(){var a=this;a.trigger("theme:previous",a.model.cid)},screenshotCheck:function(a){var b,c;b=a.find(".screenshot img"),c=new Image,c.src=b.attr("src"),c.width&&c.width<=300&&a.addClass("small-screenshot")}}),b.view.Preview=wp.Backbone.View.extend({className:"wp-full-overlay expanded",el:"#theme-installer",events:{"click .close-full-overlay":"close","click .collapse-sidebar":"collapse"},html:b.template("theme-preview"),render:function(){var c=this.model.toJSON();this.$el.html(this.html(c)),b.router.navigate(b.router.baseUrl("?theme="+this.model.get("id")),{replace:!0}),this.$el.fadeIn(200,function(){a("body").addClass("theme-installer-active full-overlay-active")})},close:function(){return this.$el.fadeOut(200,function(){a("body").removeClass("theme-installer-active full-overlay-active")}),b.router.navigate(b.router.baseUrl("")),!1},collapse:function(){return this.$el.toggleClass("collapsed").toggleClass("expanded"),!1}}),b.view.Themes=wp.Backbone.View.extend({className:"themes",$overlay:a("div.theme-overlay"),index:0,count:a(".theme-count"),initialize:function(b){var c=this;this.parent=b.parent,this.setView("grid"),c.currentTheme(),this.listenTo(c.collection,"update",function(){c.parent.page=0,c.currentTheme(),c.render(this)}),this.listenTo(c.collection,"query:success",function(a){c.count.text(_.isNumber(a)?a:c.collection.length)}),this.listenTo(this.parent,"theme:scroll",function(){c.renderThemes(c.parent.page)}),this.listenTo(this.parent,"theme:close",function(){c.overlay&&c.overlay.closeOverlay()}),a("body").on("keyup",function(a){c.overlay&&(39===a.keyCode&&c.overlay.nextTheme(),37===a.keyCode&&c.overlay.previousTheme(),27===a.keyCode&&c.overlay.collapse(a))})},render:function(){this.$el.html(""),1===b.data.themes.length&&(this.singleTheme=new b.view.Details({model:this.collection.models[0]}),this.singleTheme.render(),this.$el.addClass("single-theme"),this.$el.append(this.singleTheme.el)),this.options.collection.size()>0&&this.renderThemes(this.parent.page),this.count.text(this.collection.length)},renderThemes:function(d){var e=this;return e.instance=e.collection.paginate(d),0===e.instance.size()?void this.parent.trigger("theme:end"):(d>=1&&a(".add-new-theme").remove(),e.instance.each(function(a){e.theme=new b.view.Theme({model:a}),e.theme.render(),e.$el.append(e.theme.el),e.listenTo(e.theme,"theme:expand",e.expand,e)}),b.data.settings.canInstall&&this.$el.append('<div class="theme add-new-theme"><a href="'+b.data.settings.installURI+'"><div class="theme-screenshot"><span></span></div><h3 class="theme-name">'+c.addNew+"</h3></a></div>"),void this.parent.page++)},currentTheme:function(){var a,b=this;a=b.collection.findWhere({active:!0}),a&&(b.collection.remove(a),b.collection.add(a,{at:0}))},setView:function(a){return a},expand:function(c){var d=this;this.model=d.collection.get(c),b.router.navigate(b.router.baseUrl("?theme="+this.model.id)),this.setView("detail"),a("body").addClass("theme-overlay-open"),this.overlay=new b.view.Details({model:d.model}),this.overlay.render(),this.$overlay.html(this.overlay.el),this.listenTo(this.overlay,"theme:next",function(){d.next([d.model.cid])}).listenTo(this.overlay,"theme:previous",function(){d.previous([d.model.cid])})},next:function(a){var b,c,d=this;b=d.collection.get(a[0]),c=d.collection.at(d.collection.indexOf(b)+1),void 0!==c&&(this.overlay.closeOverlay(),d.theme.trigger("theme:expand",c.cid))},previous:function(a){var b,c,d=this;b=d.collection.get(a[0]),c=d.collection.at(d.collection.indexOf(b)-1),void 0!==c&&(this.overlay.closeOverlay(),d.theme.trigger("theme:expand",c.cid))}}),b.view.Search=wp.Backbone.View.extend({tagName:"input",className:"theme-search",id:"theme-search-input",searching:!1,attributes:{placeholder:c.searchPlaceholder,type:"search"},events:{input:"search",keyup:"search",change:"search",search:"search",blur:"pushState"},initialize:function(a){this.parent=a.parent,this.listenTo(this.parent,"theme:close",function(){this.searching=!1})},search:function(a){var c={};"keyup"===a.type&&27===a.which&&(a.target.value=""),13===a.which&&this.$el.trigger("blur"),this.collection.doSearch(a.target.value),this.searching&&13!==a.which?c.replace=!0:this.searching=!0,a.target.value?b.router.navigate(b.router.baseUrl("?search="+a.target.value),c):b.router.navigate(b.router.baseUrl(""))},pushState:function(a){var c=b.router.baseUrl("");a.target.value&&(c=b.router.baseUrl("?search="+a.target.value)),this.searching=!1,b.router.navigate(c)}}),b.Router=Backbone.Router.extend({routes:{"themes.php?theme=:slug":"theme","themes.php?search=:query":"search","themes.php?s=:query":"search","themes.php":"themes","":"themes"},baseUrl:function(a){return"themes.php"+a},search:function(b){a(".theme-search").val(b)},themes:function(){a(".theme-search").val("")}}),b.Run={init:function(){this.themes=new b.Collection(b.data.themes),this.view=new b.view.Appearance({collection:this.themes}),this.render()},render:function(){this.view.render(),this.routes(),Backbone.history.start({root:b.data.settings.adminUrl,pushState:!0,hashChange:!1})},routes:function(){var a=this;b.router=new b.Router,b.router.on("route:theme",function(b){a.view.view.expand(b)}),b.router.on("route:themes",function(){a.themes.doSearch(""),a.view.trigger("theme:close")}),b.router.on("route:search",function(b){a.view.trigger("theme:close"),a.themes.doSearch(b)}),this.extraRoutes()},extraRoutes:function(){return!1}},b.view.InstallerSearch=b.view.Search.extend({events:{keyup:"search"},search:function(a){("keyup"!==a.type||9!==a.which&&16!==a.which)&&(this.collection=this.options.parent.view.collection,"keyup"===a.type&&27===a.which&&(a.target.value=""),_.debounce(_.bind(this.doSearch,this),300)(a.target.value))},doSearch:_.debounce(function(a){var b={};b.search=a,"author:"===a.substring(0,7)&&(b.search="",b.author=a.slice(7)),"tag:"===a.substring(0,4)&&(b.search="",b.tag=[a.slice(4)]),this.collection.query(b)},300)}),b.view.Installer=b.view.Appearance.extend({el:"#wpbody-content .wrap",events:{"click .theme-section":"onSort","click .theme-filter":"onFilter","click .more-filters":"moreFilters",'click [type="checkbox"]':"addFilter"},browse:function(d){var e=this;this.collection=new b.Collection,this.listenTo(this,"theme:end",function(){e.collection.currentQuery.page++,_.extend(e.collection.currentQuery.request,{page:e.collection.currentQuery.page}),e.collection.query(e.collection.currentQuery.request)}),this.listenTo(this.collection,"query:success",function(){a("body").removeClass("loading-themes"),a(".theme-browser").find("div.error").remove()}),this.listenTo(this.collection,"query:fail",function(){a(".theme-browser").find("div.error").remove(),a(".theme-browser").append('<div class="error"><p>'+c.error+"</p></div>")}),this.collection.query({browse:d}),this.view&&this.view.remove(),this.view=new b.view.Themes({collection:this.collection,section:d,parent:this}),this.page=0,this.$el.find(".themes").remove(),this.view.render(),this.$el.find(".theme-browser").append(this.view.el).addClass("rendered")},render:function(){return this.search(),this.uploader(),this.browse(this.options.section)},onSort:function(c){var d=a(c.target),e=d.data("sort");c.preventDefault(),d.hasClass(this.activeClass)||(this.sort(e),b.router.navigate(b.router.baseUrl("?sort="+e)))},sort:function(b){a("#theme-search-input").val(""),a(".theme-section, .theme-filter").removeClass(this.activeClass),a('[data-sort="'+b+'"]').addClass(this.activeClass),this.browse(b)},onFilter:function(b){var c,d=a(b.target),e=d.data("filter");d.hasClass(this.activeClass)||(a(".theme-filter, .theme-section").removeClass(this.activeClass),d.addClass(this.activeClass),e&&(e=_.union(e,this.filtersChecked()),c={tag:[e]},this.collection.query(c)))},addFilter:function(){var a=this.filtersChecked(),b={tag:a};this.collection.query(b)},filtersChecked:function(){var b=a(".feature-group").find(":checkbox"),c=[];return _.each(b.filter(":checked"),function(b){c.push(a(b).prop("value"))}),c},activeClass:"current",searchContainer:a(".theme-navigation"),uploader:function(){a("a.upload").on("click",function(){a("body").addClass("show-upload-theme"),b.router.navigate(b.router.baseUrl("?upload"),{replace:!0})}),a("a.browse-themes").on("click",function(){a("body").removeClass("show-upload-theme"),b.router.navigate(b.router.baseUrl(""),{replace:!0})})},moreFilters:function(){a("body").toggleClass("more-filters-opened")}}),b.InstallerRouter=Backbone.Router.extend({routes:{"theme-install.php?theme=:slug":"preview","theme-install.php?sort=:sort":"sort","theme-install.php?upload":"upload","":"sort"},baseUrl:function(a){return"theme-install.php"+a}}),b.RunInstaller={init:function(){this.view=new b.view.Installer({section:"featured",SearchView:b.view.InstallerSearch}),this.render()},render:function(){this.view.render(),this.routes(),Backbone.history.start({root:b.data.settings.adminUrl,pushState:!0,hashChange:!1})},routes:function(){var c=this;b.router=new b.InstallerRouter,b.router.on("route:theme",function(a){c.view.view.expand(a)}),b.router.on("route:sort",function(a){a||(a="featured"),c.view.sort(a),c.view.trigger("theme:close")}),b.router.on("route:upload",function(){a("a.upload").trigger("click")}),this.extraRoutes()},extraRoutes:function(){return!1}},a(document).ready(function(){b.isInstall?b.RunInstaller.init():b.Run.init()})}(jQuery);var tb_position;jQuery(document).ready(function(a){tb_position=function(){var b=a("#TB_window"),c=a(window).width(),d=a(window).height(),e=c>1040?1040:c,f=0;a("#wpadminbar").length&&(f=parseInt(a("#wpadminbar").css("height"),10)),b.size()&&(b.width(e-50).height(d-45-f),a("#TB_iframeContent").width(e-50).height(d-75-f),b.css({"margin-left":"-"+parseInt((e-50)/2,10)+"px"}),"undefined"!=typeof document.body.style.maxWidth&&b.css({top:20+f+"px","margin-top":"0"}))},a(window).resize(function(){tb_position()})});
\ No newline at end of file
+window.wp=window.wp||{},function(a){var b,c;b=wp.themes=wp.themes||{},b.data=_wpThemeSettings,c=b.data.l10n,b.isInstall=!!b.data.settings.isInstall,_.extend(b,{model:{},view:{},routes:{},router:{},template:wp.template}),b.Model=Backbone.Model.extend({initialize:function(){var c,d;c={action:"install-theme",theme:this.get("slug"),_wpnonce:b.data.settings._nonceInstall},c=b.data.settings.updateURI+"?"+a.param(c),d={tab:"theme-information",theme:this.get("slug")},d=b.data.settings.installURI+"?"+a.param(d),this.set({installURI:c,previewURI:d,id:this.get("slug")||this.get("id")})}}),b.view.Appearance=wp.Backbone.View.extend({el:"#wpbody-content .wrap .theme-browser",window:a(window),page:0,initialize:function(a){_.bindAll(this,"scroller"),this.SearchView=a.SearchView?a.SearchView:b.view.Search,this.window.bind("scroll",_.throttle(this.scroller,300))},render:function(){this.view=new b.view.Themes({collection:this.collection,parent:this}),this.search(),this.view.render(),this.$el.empty().append(this.view.el).addClass("rendered"),this.$el.append('<br class="clear"/>')},searchContainer:a("#wpbody h2:first"),search:function(){var d,e=this;1!==b.data.themes.length&&(d=new this.SearchView({collection:e.collection,parent:this}),d.render(),this.searchContainer.append(a.parseHTML('<label class="screen-reader-text" for="theme-search-input">'+c.search+"</label>")).append(d.el))},scroller:function(){var a,b,c=this;a=this.window.scrollTop()+c.window.height(),b=c.$el.offset().top+c.$el.outerHeight(!1)-c.window.height(),b=Math.round(.9*b),a>b&&this.trigger("theme:scroll")}}),b.Collection=Backbone.Collection.extend({model:b.Model,terms:"",doSearch:function(a){this.terms!==a&&(this.terms=a,this.terms.length>0&&this.search(this.terms),""===this.terms&&this.reset(b.data.themes),this.trigger("update"))},search:function(a){var c,d,e;this.reset(b.data.themes,{silent:!0}),a=a.replace(/[-\/\\^$*+?.()|[\]{}]/g,"\\$&"),a=a.replace(/ /g,")(?=.*"),c=new RegExp("^(?=.*"+a+").+","i"),d=this.filter(function(b){return e=_.union(b.get("name"),b.get("id"),b.get("description"),b.get("author"),b.get("tags")),c.test(b.get("author"))&&a.length>2&&b.set("displayAuthor",!0),c.test(e)}),this.reset(d)},paginate:function(a){var b=this;return a=a||0,b=_(b.rest(20*a)),b=_(b.first(20))},query:function(a){var b,c,d,e=this.queries,f=this;if(b=_.find(e,function(b){return _.isEqual(b.request,a)}),c=_.has(a,"page"),c||(this.currentQuery.page=1),b){if(c)return this.apiCall(a,c).done(function(a){f.add(a.themes),f.trigger("query:success"),f.loadingThemes=!1}).fail(function(){f.trigger("query:fail")});this.reset(b.themes),this.trigger("update")}else b=this.apiCall(a).done(function(b){f.reset(b.themes),d=b.info.results,f.trigger("update"),f.trigger("query:success",d),e.push({themes:b.themes,request:a})}).fail(function(){f.trigger("query:fail")})},queries:[],currentQuery:{page:1,request:{}},apiCall:function(b,c){return this.currentQuery.request=b,a.ajax({url:"https://api.wordpress.org/themes/info/1.1/?action=query_themes",dataType:"json",type:"POST",crossDomain:!0,data:{action:"query_themes",request:_.extend({per_page:72,fields:{description:!0,tested:!0,requires:!0,rating:!0,downloaded:!0,downloadLink:!0,last_updated:!0,homepage:!0,num_ratings:!0}},b)},beforeSend:function(){c||a("body").addClass("loading-themes")}})},loadingThemes:!1}),b.view.Theme=wp.Backbone.View.extend({className:"theme",state:"grid",html:b.template("theme"),events:{click:b.isInstall?"preview":"expand","click .preview":"preview",keydown:b.isInstall?"preview":"expand",touchend:b.isInstall?"preview":"expand",keyup:"addFocus",touchmove:"preventExpand"},touchDrag:!1,render:function(){var a=this.model.toJSON();this.$el.html(this.html(a)).attr({tabindex:0,"aria-describedby":a.id+"-action "+a.id+"-name"}),this.activeTheme(),this.model.get("displayAuthor")&&this.$el.addClass("display-author")},activeTheme:function(){this.model.get("active")&&this.$el.addClass("active")},addFocus:function(){var b=a(":focus").hasClass("theme")?a(":focus"):a(":focus").parents(".theme");a(".theme.focus").removeClass("focus"),b.addClass("focus")},expand:function(c){var d=this;return c=c||window.event,"keydown"!==c.type||13===c.which||32===c.which?this.touchDrag===!0?this.touchDrag=!1:void(a(c.target).is(".theme-actions a")||(b.focusedTheme=this.$el,this.trigger("theme:expand",d.model.cid))):void 0},preventExpand:function(){this.touchDrag=!0},preview:function(c){if(this.touchDrag===!0)return this.touchDrag=!1;if(!("keydown"===c.type&&13!==c.which&&32!==c.which||"keydown"===c.type&&13!==c.which&&a(":focus").hasClass("button"))){c.preventDefault(),c=c||window.event;var d=new b.view.Preview({model:this.model});d.render(),a("div.wrap").append(d.el)}}}),b.view.Details=wp.Backbone.View.extend({className:"theme-overlay",events:{click:"collapse","click .delete-theme":"deleteTheme","click .left":"previousTheme","click .right":"nextTheme"},html:b.template("theme-single"),render:function(){var a=this.model.toJSON();this.$el.html(this.html(a)),this.activeTheme(),this.navigation(),this.screenshotCheck(this.$el),this.containFocus(this.$el)},activeTheme:function(){this.$el.toggleClass("active",this.model.get("active"))},containFocus:function(b){var c;_.delay(function(){a(".theme-wrap a.button-primary:visible").focus()},500),b.on("keydown.wp-themes",function(d){9===d.which&&(c=a(d.target),c.is("button.left")&&d.shiftKey?(b.find(".theme-actions a:last-child").focus(),d.preventDefault()):c.is(".theme-actions a:last-child")&&(b.find("button.left").focus(),d.preventDefault()))})},collapse:function(c){var d,e=this;c=c||window.event,1!==b.data.themes.length&&(a(c.target).is(".theme-backdrop")||a(c.target).is(".close")||27===c.keyCode)&&(a("body").addClass("closing-overlay"),this.$el.fadeOut(130,function(){a("body").removeClass("closing-overlay"),e.closeOverlay(),d=document.body.scrollTop,b.router.navigate(b.router.baseUrl("")),document.body.scrollTop=d,b.focusedTheme&&b.focusedTheme.focus()}))},navigation:function(){this.model.cid===this.model.collection.at(0).cid&&this.$el.find(".left").addClass("disabled"),this.model.cid===this.model.collection.at(this.model.collection.length-1).cid&&this.$el.find(".right").addClass("disabled")},closeOverlay:function(){a("body").removeClass("theme-overlay-open"),this.remove(),this.unbind(),this.trigger("theme:collapse")},deleteTheme:function(){return confirm(b.data.settings.confirmDelete)},nextTheme:function(){var a=this;a.trigger("theme:next",a.model.cid)},previousTheme:function(){var a=this;a.trigger("theme:previous",a.model.cid)},screenshotCheck:function(a){var b,c;b=a.find(".screenshot img"),c=new Image,c.src=b.attr("src"),c.width&&c.width<=300&&a.addClass("small-screenshot")}}),b.view.Preview=wp.Backbone.View.extend({className:"wp-full-overlay expanded",el:"#theme-installer",events:{"click .close-full-overlay":"close","click .collapse-sidebar":"collapse"},html:b.template("theme-preview"),render:function(){var c=this.model.toJSON();this.$el.html(this.html(c)),b.router.navigate(b.router.baseUrl("?theme="+this.model.get("id")),{replace:!0}),this.$el.fadeIn(200,function(){a("body").addClass("theme-installer-active full-overlay-active")})},close:function(){return this.$el.fadeOut(200,function(){a("body").removeClass("theme-installer-active full-overlay-active")}),b.router.navigate(b.router.baseUrl("")),!1},collapse:function(){return this.$el.toggleClass("collapsed").toggleClass("expanded"),!1}}),b.view.Themes=wp.Backbone.View.extend({className:"themes",$overlay:a("div.theme-overlay"),index:0,count:a(".theme-count"),initialize:function(b){var c=this;this.parent=b.parent,this.setView("grid"),c.currentTheme(),this.listenTo(c.collection,"update",function(){c.parent.page=0,c.currentTheme(),c.render(this)}),this.listenTo(c.collection,"query:success",function(a){c.count.text(_.isNumber(a)?a:c.collection.length)}),this.listenTo(this.parent,"theme:scroll",function(){c.renderThemes(c.parent.page)}),this.listenTo(this.parent,"theme:close",function(){c.overlay&&c.overlay.closeOverlay()}),a("body").on("keyup",function(a){c.overlay&&(39===a.keyCode&&c.overlay.nextTheme(),37===a.keyCode&&c.overlay.previousTheme(),27===a.keyCode&&c.overlay.collapse(a))})},render:function(){this.$el.html(""),1===b.data.themes.length&&(this.singleTheme=new b.view.Details({model:this.collection.models[0]}),this.singleTheme.render(),this.$el.addClass("single-theme"),this.$el.append(this.singleTheme.el)),this.options.collection.size()>0&&this.renderThemes(this.parent.page),this.count.text(this.collection.length)},renderThemes:function(d){var e=this;return e.instance=e.collection.paginate(d),0===e.instance.size()?void this.parent.trigger("theme:end"):(d>=1&&a(".add-new-theme").remove(),e.instance.each(function(a){e.theme=new b.view.Theme({model:a}),e.theme.render(),e.$el.append(e.theme.el),e.listenTo(e.theme,"theme:expand",e.expand,e)}),b.data.settings.canInstall&&this.$el.append('<div class="theme add-new-theme"><a href="'+b.data.settings.installURI+'"><div class="theme-screenshot"><span></span></div><h3 class="theme-name">'+c.addNew+"</h3></a></div>"),void this.parent.page++)},currentTheme:function(){var a,b=this;a=b.collection.findWhere({active:!0}),a&&(b.collection.remove(a),b.collection.add(a,{at:0}))},setView:function(a){return a},expand:function(c){var d=this;this.model=d.collection.get(c),b.router.navigate(b.router.baseUrl("?theme="+this.model.id)),this.setView("detail"),a("body").addClass("theme-overlay-open"),this.overlay=new b.view.Details({model:d.model}),this.overlay.render(),this.$overlay.html(this.overlay.el),this.listenTo(this.overlay,"theme:next",function(){d.next([d.model.cid])}).listenTo(this.overlay,"theme:previous",function(){d.previous([d.model.cid])})},next:function(a){var b,c,d=this;b=d.collection.get(a[0]),c=d.collection.at(d.collection.indexOf(b)+1),void 0!==c&&(this.overlay.closeOverlay(),d.theme.trigger("theme:expand",c.cid))},previous:function(a){var b,c,d=this;b=d.collection.get(a[0]),c=d.collection.at(d.collection.indexOf(b)-1),void 0!==c&&(this.overlay.closeOverlay(),d.theme.trigger("theme:expand",c.cid))}}),b.view.Search=wp.Backbone.View.extend({tagName:"input",className:"theme-search",id:"theme-search-input",searching:!1,attributes:{placeholder:c.searchPlaceholder,type:"search"},events:{input:"search",keyup:"search",change:"search",search:"search",blur:"pushState"},initialize:function(a){this.parent=a.parent,this.listenTo(this.parent,"theme:close",function(){this.searching=!1})},search:function(a){var c={};"keyup"===a.type&&27===a.which&&(a.target.value=""),13===a.which&&this.$el.trigger("blur"),this.collection.doSearch(a.target.value),this.searching&&13!==a.which?c.replace=!0:this.searching=!0,a.target.value?b.router.navigate(b.router.baseUrl("?search="+a.target.value),c):b.router.navigate(b.router.baseUrl(""))},pushState:function(a){var c=b.router.baseUrl("");a.target.value&&(c=b.router.baseUrl("?search="+a.target.value)),this.searching=!1,b.router.navigate(c)}}),b.Router=Backbone.Router.extend({routes:{"themes.php?theme=:slug":"theme","themes.php?search=:query":"search","themes.php?s=:query":"search","themes.php":"themes","":"themes"},baseUrl:function(a){return"themes.php"+a},search:function(b){a(".theme-search").val(b)},themes:function(){a(".theme-search").val("")}}),b.Run={init:function(){this.themes=new b.Collection(b.data.themes),this.view=new b.view.Appearance({collection:this.themes}),this.render()},render:function(){this.view.render(),this.routes(),Backbone.history.start({root:b.data.settings.adminUrl,pushState:!0,hashChange:!1})},routes:function(){var a=this;b.router=new b.Router,b.router.on("route:theme",function(b){a.view.view.expand(b)}),b.router.on("route:themes",function(){a.themes.doSearch(""),a.view.trigger("theme:close")}),b.router.on("route:search",function(b){a.view.trigger("theme:close"),a.themes.doSearch(b)}),this.extraRoutes()},extraRoutes:function(){return!1}},b.view.InstallerSearch=b.view.Search.extend({events:{keyup:"search"},search:function(a){("keyup"!==a.type||9!==a.which&&16!==a.which)&&(this.collection=this.options.parent.view.collection,"keyup"===a.type&&27===a.which&&(a.target.value=""),_.debounce(_.bind(this.doSearch,this),300)(a.target.value))},doSearch:_.debounce(function(a){var b={};b.search=a,"author:"===a.substring(0,7)&&(b.search="",b.author=a.slice(7)),"tag:"===a.substring(0,4)&&(b.search="",b.tag=[a.slice(4)]),this.collection.query(b)},300)}),b.view.Installer=b.view.Appearance.extend({el:"#wpbody-content .wrap",events:{"click .theme-section":"onSort","click .theme-filter":"onFilter","click .more-filters":"moreFilters",'click [type="checkbox"]':"addFilter"},browse:function(d){var e=this;this.collection=new b.Collection,this.listenTo(this,"theme:end",function(){e.collection.loadingThemes||(e.collection.loadingThemes=!0,e.collection.currentQuery.page++,_.extend(e.collection.currentQuery.request,{page:e.collection.currentQuery.page}),e.collection.query(e.collection.currentQuery.request))}),this.listenTo(this.collection,"query:success",function(){a("body").removeClass("loading-themes"),a(".theme-browser").find("div.error").remove()}),this.listenTo(this.collection,"query:fail",function(){a(".theme-browser").find("div.error").remove(),a(".theme-browser").append('<div class="error"><p>'+c.error+"</p></div>")}),this.collection.query({browse:d}),this.view&&this.view.remove(),this.view=new b.view.Themes({collection:this.collection,section:d,parent:this}),this.page=0,this.$el.find(".themes").remove(),this.view.render(),this.$el.find(".theme-browser").append(this.view.el).addClass("rendered")},render:function(){return this.search(),this.uploader(),this.browse(this.options.section)},onSort:function(c){var d=a(c.target),e=d.data("sort");c.preventDefault(),d.hasClass(this.activeClass)||(this.sort(e),b.router.navigate(b.router.baseUrl("?sort="+e)))},sort:function(b){a("#theme-search-input").val(""),a(".theme-section, .theme-filter").removeClass(this.activeClass),a('[data-sort="'+b+'"]').addClass(this.activeClass),this.browse(b)},onFilter:function(b){var c,d=a(b.target),e=d.data("filter");d.hasClass(this.activeClass)||(a(".theme-filter, .theme-section").removeClass(this.activeClass),d.addClass(this.activeClass),e&&(e=_.union(e,this.filtersChecked()),c={tag:[e]},this.collection.query(c)))},addFilter:function(){var a=this.filtersChecked(),b={tag:a};this.collection.query(b)},filtersChecked:function(){var b=a(".feature-group").find(":checkbox"),c=[];return _.each(b.filter(":checked"),function(b){c.push(a(b).prop("value"))}),c},activeClass:"current",searchContainer:a(".theme-navigation"),uploader:function(){a("a.upload").on("click",function(){a("body").addClass("show-upload-theme"),b.router.navigate(b.router.baseUrl("?upload"),{replace:!0})}),a("a.browse-themes").on("click",function(){a("body").removeClass("show-upload-theme"),b.router.navigate(b.router.baseUrl(""),{replace:!0})})},moreFilters:function(){a("body").toggleClass("more-filters-opened")}}),b.InstallerRouter=Backbone.Router.extend({routes:{"theme-install.php?theme=:slug":"preview","theme-install.php?sort=:sort":"sort","theme-install.php?upload":"upload","":"sort"},baseUrl:function(a){return"theme-install.php"+a}}),b.RunInstaller={init:function(){this.view=new b.view.Installer({section:"featured",SearchView:b.view.InstallerSearch}),this.render()},render:function(){this.view.render(),this.routes(),Backbone.history.start({root:b.data.settings.adminUrl,pushState:!0,hashChange:!1})},routes:function(){var c=this;b.router=new b.InstallerRouter,b.router.on("route:theme",function(a){c.view.view.expand(a)}),b.router.on("route:sort",function(a){a||(a="featured"),c.view.sort(a),c.view.trigger("theme:close")}),b.router.on("route:upload",function(){a("a.upload").trigger("click")}),this.extraRoutes()},extraRoutes:function(){return!1}},a(document).ready(function(){b.isInstall?b.RunInstaller.init():b.Run.init()})}(jQuery);var tb_position;jQuery(document).ready(function(a){tb_position=function(){var b=a("#TB_window"),c=a(window).width(),d=a(window).height(),e=c>1040?1040:c,f=0;a("#wpadminbar").length&&(f=parseInt(a("#wpadminbar").css("height"),10)),b.size()&&(b.width(e-50).height(d-45-f),a("#TB_iframeContent").width(e-50).height(d-75-f),b.css({"margin-left":"-"+parseInt((e-50)/2,10)+"px"}),"undefined"!=typeof document.body.style.maxWidth&&b.css({top:20+f+"px","margin-top":"0"}))},a(window).resize(function(){tb_position()})});
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