jquery.watch.min.js

/**
 * jQuery Watch Plugin
 *
 * @author Darcy Clarke
 *
 * Copyright (c) 2013 Darcy Clarke
 * Dual licensed under the MIT and GPL licenses.
 *
 * Usage:
 * $('div').watch('width height', function(){
 *   console.log(this.style.width, this.style.height);
 * });
 */

(function(e){e.fn.watch=function(t,n,r){var i=document.createElement("div");var s=window.MutationObserver||window.WebKitMutationObserver||window.MozMutationObserver;var o=window.CustomEvent||function(){return arguments||{}};var u=function(e,t){e="on"+e;var n=e in t;if(!n){t.setAttribute(e,"return;");n=typeof t[e]=="function"}return n};if(typeof n=="function"){r=n;n={}}if(typeof r!="function")r=function(){};n=e.extend({},{throttle:10},n);var a=function(t){var n=this;e.each(this.watching,function(){var e=this;var r=false;var i;for(var s=0;s<e.props.length;s++){i=t[0].attributes[e.props[s]]||t.css(e.props[s]);if(e.vals[s]!=i){e.vals[s]=i;r=true;break}}if(r&&e.callback)e.callback.call(n,new o("AttrChange"))})};return this.each(function(){var o=this;var f=e(this);var l={props:t.split(" "),vals:[],changed:[],callback:r};e.each(l.props,function(e){l.vals[e]=f[0].attributes[l.props[e]]||f.css(l.props[e]);l.changed[e]=false});if(!this.watching)this.watching=[];this.watching.push(l);if(s){var c=new s(function(e){e.forEach(function(e){r.call(o,e)})});c.observe(this,{subtree:false,attributes:true})}else if(u("DOMAttrModified",i)){f.on("DOMAttrModified",r)}else if(u("propertychange",i)){f.on("propertychange",r)}else{setInterval(function(){a.call(o,f)},n.throttle)}})}})(jQuery);