jquery.scrollie.min.js

/****
 * jQuery Scrollie Plugin v1.0.1
 * https://github.com/Funsella/jquery-scrollie
 *
 * Copyright 2013 JP Nothard
 * Released under the MIT license
 */
!function(l,t){"use strict";function s(t,s){this.element=t,this.settings=l.extend({},i,s),this._defaults=i,this._name=e,this.init()}var e="scrollie",i={direction:"both",scrollOffset:0,scrollRatio:2,scrollingInView:null,scrollingToTheTop:null,scrollingOutOfView:null,scrolledOutOfView:null};s.prototype={init:function(){this._defineElements(),this._scrollEvent()},_defineElements:function(){var t=this;t.$scrollElement=l(t.element),t.$elemHeight=t.$scrollElement.outerHeight(),t.$elemPosTop=t.$scrollElement.offset().top,t.$scrollOffset=t.$scrollElement.data("scrollie-offset")||"0"==t.$scrollElement.data("scrollie-offset")?t.$scrollElement.data("scrollie-offset"):t.settings.scrollOffset,t.$scrollRatio=t.$scrollElement.data("scrollie-scrollRatio")||"0"==t.$scrollElement.data("scrollie-scrollRatio")?t.$scrollElement.data("scrollie-scrollRatio"):t.settings.scrollRatio},_inMotion:function(l,t,s,e){var i=this,o=-1*(-1*(l-s)-t),n=o/2,c=o<t+i.$elemHeight,r=o>0-i.$scrollOffset,f=r&&t>o,u=r&&c,a=o>t-i.$scrollOffset&&c;f&&jQuery.isFunction(i.settings.scrollingToTheTop)&&i.settings.scrollingToTheTop.call(this,this.$scrollElement,i.$scrollOffset,e,o,n,s,l),u&&jQuery.isFunction(i.settings.scrollingInView)&&i.settings.scrollingInView.call(this,this.$scrollElement,i.$scrollOffset,e,o,n,s,l),a&&jQuery.isFunction(i.settings.scrollingOutOfView)&&i.settings.scrollingOutOfView.call(this,this.$scrollElement,i.$scrollOffset,e,o,n,s,l),c||jQuery.isFunction(i.settings.scrolledOutOfView)&&i.settings.scrolledOutOfView.call(this,this.$scrollElement,i.$scrollOffset,e,o,n,s,l)},_scrollEvent:function(){var s=this,e=s.settings.direction,i=0,o=!0;setInterval(function(){o=!0},66),l(t).on("scroll",function(){var t=l(this).scrollTop(),n=l(this).height(),c=t>i?"up":"down";c===e&&o===!0?(o=!1,s._inMotion(t,n,s.$elemPosTop,c)):"both"===e&&o===!0&&(o=!1,s._inMotion(t,n,s.$elemPosTop,c)),i=t})}},l.fn[e]=function(t){return this.each(function(){l.data(this,"plugin_"+e)||l.data(this,"plugin_"+e,new s(this,t))})}}(jQuery,window,document);