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

!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){var c,d;c=b(this),d="#"===c.attr("href").substr(0,1),a.preventDefault(),d&&"#"!==c.attr("href")&&b(c.attr("href")).each(function(){this.scrollIntoView()}),a.shiftKey||d||(f.send("scroll",0),f.send("url",c.prop("href")))}),this.body.on("submit.preview","form",function(a){var c;a.isDefaultPrevented()||"GET"!==this.method.toUpperCase()||(c=document.createElement("a"),c.href=this.action,c.search.substr(1).length>1&&(c.search+="&"),c.search+=b(this).serialize(),d.preview.send("url",c.href)),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(){var a,c;d.settings=window._wpCustomizeSettings,d.settings&&(d.preview=new d.Preview({url:window.location.href,channel:d.settings.channel}),c=function(a,b,c){var e=d(a);e?e.set(b):(c=c||!1,e=d.create(a,b,{id:a}),c&&(e._dirty=!0))},d.preview.bind("settings",function(a){b.each(a,c)}),d.preview.trigger("settings",d.settings.values),b.each(d.settings._dirty,function(a,b){var c=d(b);c&&(c._dirty=!0)}),d.preview.bind("setting",function(a){var b=!0;c.apply(null,a.concat(b))}),d.preview.bind("sync",function(a){b.each(a,function(a,b){d.preview.trigger(a,b)}),d.preview.send("synced")}),d.preview.bind("active",function(){d.preview.send("nonce",d.settings.nonce),d.preview.send("documentTitle",document.title)}),d.preview.bind("saved",function(a){d.trigger("saved",a)}),d.bind("saved",function(){d.each(function(a){a._dirty=!1})}),d.preview.bind("nonce-refresh",function(a){b.extend(d.settings.nonce,a)}),d.preview.send("ready",{activePanels:d.settings.activePanels,activeSections:d.settings.activeSections,activeControls:d.settings.activeControls,settingValidities:d.settings.settingValidities}),d.preview.bind("loading-initiated",function(){b("body").addClass("wp-customizer-unloading")}),d.preview.bind("loading-failed",function(){b("body").removeClass("wp-customizer-unloading")}),a=b.map(["color","image","position_x","repeat","attachment"],function(a){return"background_"+a}),d.when.apply(d,a).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)})}),d("custom_logo",function(a){b("body").toggleClass("wp-custom-logo",!!a.get()),a.bind(function(a){b("body").toggleClass("wp-custom-logo",!!a)})}),d.trigger("preview-ready"))})}(wp,jQuery);