waypoints.min.js

/*
jQuery Waypoints - v1.0
Copyright (c) 2011 Caleb Troughton
Dual licensed under the MIT license and GPL license.
https://github.com/imakewebthings/jquery-waypoints/blob/master/MIT-license.txt
https://github.com/imakewebthings/jquery-waypoints/blob/master/GPL-license.txt
*/
(function($,l,n,j,d){var f=$(j),k=[],m=-99999,i=false,o=false,g="waypoint.reached";var c={init:function(q,p){this.each(function(){var u=$(this),r=h(u),t=r<0?$.fn[l].defaults:k[r].options,s=$.extend({},t,p);if(r<0){k.push({element:u,offset:u.offset().top,options:s})}else{k[r].options=s}q&&u.bind(g,q)});$[n]("refresh");return this},remove:function(){return this.each(function(){var p=h($(this));if(p>=0){k.splice(p,1)}})},destroy:function(){return this.unbind(g).waypoint("remove")}};function h(q){var p=k.length-1;while(p>=0&&k[p].element[0]!==q[0]){p-=1}return p}function b(q,p){q.element.trigger(g,p);if(q.options.triggerOnce){q.element.waypoint("destroy")}}function e(){var q=f.scrollTop(),p=q>m,r=$.grep(k,function(t,s){return p?(t.offset>m&&t.offset<=q):(t.offset<=m&&t.offset>q)});if(!r.length){return}if($[n].settings.continuous){$.each(p?r:r.reverse(),function(t,s){b(s,[p?"down":"up"])})}else{b(r[p?r.length-1:0],[p?"down":"up"])}m=q}$.fn[l]=function(p){if(c[p]){return c[p].apply(this,Array.prototype.slice.call(arguments,1))}else{if(typeof p==="function"||!p){return c.init.apply(this,arguments)}else{if(typeof p==="object"){return c.init.apply(this,[null,p])}else{$.error("Method "+p+" does not exist on jQuery"+l)}}}};$.fn[l].defaults={offset:0,triggerOnce:false};var a={refresh:function(){$.each(k,function(r,t){var p=0,s=t.offset;if(typeof t.options.offset==="function"){p=t.options.offset.apply(t.element)}else{if(typeof t.options.offset==="string"){var q=parseFloat(t.options.offset);p=t.options.offset.indexOf("%")?f.height()*(q/100):q}else{p=t.options.offset}}t.offset=t.element.offset().top-p;if(m>s&&m<=t.offset){b(t,["up"])}else{if(m<s&&m>=t.offset){b(t,["down"])}}});k.sort(function(q,p){return q.offset-p.offset})},aggregate:function(){var p=$();$.each(k,function(q,r){p=p.add(r.element)});return p}};$[n]=function(p){if(a[p]){return a[p].apply(this)}else{return a.aggregate()}};$[n].settings={continuous:true,resizeThrottle:200,scrollThrottle:100};f.load(function(){f.scroll(function(){if(!i){i=true;j.setTimeout(function(){e();i=false},$[n].settings.scrollThrottle)}});f.resize(function(){if(!o){o=true;j.setTimeout(function(){$.waypoints("refresh");o=false},$[n].settings.resizeThrottle)}});$[n]("refresh");e()})})(jQuery,"waypoint","waypoints",this);