/*
 * arrive.js
 * v2.0.0
 * https://github.com/uzairfarooq/arrive
 * MIT licensed
 *
 * Copyright (c) 2014 Uzair Farooq
 */

(function(q,r,m){function n(a,b,e){for(var d=0,c;c=a[d];d++)f.matchesSelector(c,b.selector)&&-1==b.firedElems.indexOf(c)&&(b.firedElems.push(c),e.push({callback:b.callback,elem:c})),0<c.childNodes.length&&n(c.childNodes,b,e)}function s(a){for(var b=0,e;e=a[b];b++)e.callback.call(e.elem)}function g(a){a.arrive=h.bindEvent;f.addMethod(a,"unbindArrive",h.unbindEvent);f.addMethod(a,"unbindArrive",h.unbindEventWithSelectorOrCallback);f.addMethod(a,"unbindArrive",h.unbindEventWithSelectorAndCallback);a.leave=
k.bindEvent;f.addMethod(a,"unbindLeave",k.unbindEvent);f.addMethod(a,"unbindLeave",k.unbindEventWithSelectorOrCallback);f.addMethod(a,"unbindLeave",k.unbindEventWithSelectorAndCallback)}var f=function(){var a=HTMLElement.prototype.matches||HTMLElement.prototype.webkitMatchesSelector||HTMLElement.prototype.mozMatchesSelector||HTMLElement.prototype.msMatchesSelector;return{matchesSelector:function(b,e){return b instanceof HTMLElement&&a.call(b,e)},addMethod:function(b,a,d){var c=b[a];b[a]=function(){if(d.length==
arguments.length)return d.apply(this,arguments);if("function"==typeof c)return c.apply(this,arguments)}}}}(),t=function(){var a=function(){this._eventsBucket=[];this._beforeRemoving=this._beforeAdding=null};a.prototype.addEvent=function(b,a,d,c){b={target:b,selector:a,options:d,callback:c,firedElems:[]};this._beforeAdding&&this._beforeAdding(b);this._eventsBucket.push(b);return b};a.prototype.removeEvent=function(b){for(var a=this._eventsBucket.length-1,d;d=this._eventsBucket[a];a--)b(d)&&(this._beforeRemoving&&
this._beforeRemoving(d),this._eventsBucket.splice(a,1))};a.prototype.beforeAdding=function(b){this._beforeAdding=b};a.prototype.beforeRemoving=function(b){this._beforeRemoving=b};return a}();m=function(a,b,e){function d(b){"number"!==typeof b.length&&(b=[b]);return b}var c=new t;c.beforeAdding(function(b){var c=b.target,d;if(c===q.document||c===q)c=document.getElementsByTagName("html")[0];d=new MutationObserver(function(a){e.call(this,a,b)});var l=a(b.options);d.observe(c,l);b.observer=d});c.beforeRemoving(function(b){b.observer.disconnect()});
this.bindEvent=function(a,e,p){"undefined"===typeof p&&(p=e,e=b);for(var l=d(this),f=0;f<l.length;f++)c.addEvent(l[f],a,e,p)};this.unbindEvent=function(){var b=d(this);c.removeEvent(function(a){for(var c=0;c<b.length;c++)if(a.target===b[c])return!0;return!1})};this.unbindEventWithSelectorOrCallback=function(b){var a=d(this);c.removeEvent("function"===typeof b?function(c){for(var d=0;d<a.length;d++)if(c.target===a[d]&&c.callback===b)return!0;return!1}:function(c){for(var d=0;d<a.length;d++)if(c.target===
a[d]&&c.selector===b)return!0;return!1})};this.unbindEventWithSelectorAndCallback=function(b,a){var e=d(this);c.removeEvent(function(c){for(var d=0;d<e.length;d++)if(c.target===e[d]&&c.selector===b&&c.callback===a)return!0;return!1})};return this};var h=new m(function(a){var b={attributes:!1,childList:!0,subtree:!0};a.fireOnAttributesModification&&(b.attributes=!0);return b},{fireOnAttributesModification:!1},function(a,b){a.forEach(function(a){var d=a.addedNodes,c=a.target,g=[];null!==d&&0<d.length?
n(d,b,g):"attributes"===a.type&&f.matchesSelector(c,b.selector)&&-1==b.firedElems.indexOf(c)&&(b.firedElems.push(c),g.push({callback:b.callback,elem:c}));s(g)})}),k=new m(function(a){return{childList:!0,subtree:!0}},{},function(a,b){a.forEach(function(a){a=a.removedNodes;var d=[];null!==a&&0<a.length&&n(a,b,d);s(d)})});r&&g(r.fn);g(HTMLElement.prototype);g(NodeList.prototype);g(HTMLCollection.prototype);g(HTMLDocument.prototype);g(Window.prototype)})(this,"undefined"===typeof jQuery?null:jQuery);