4h-record-books/script/parallax.min.js

/*!
 * parallax.js v1.5.0 (http://pixelcog.github.io/parallax.js/)
 * @copyright 2016 PixelCog, Inc.
 * @license MIT (https://github.com/pixelcog/parallax.js/blob/master/LICENSE)
 */
!function(t,i,e,s){function o(i,e){var h=this;"object"==typeof e&&(delete e.refresh,delete e.render,t.extend(this,e)),this.$element=t(i),!this.imageSrc&&this.$element.is("img")&&(this.imageSrc=this.$element.attr("src"));var r=(this.position+"").toLowerCase().match(/\S+/g)||[];if(r.length<1&&r.push("center"),1==r.length&&r.push(r[0]),"top"!=r[0]&&"bottom"!=r[0]&&"left"!=r[1]&&"right"!=r[1]||(r=[r[1],r[0]]),this.positionX!==s&&(r[0]=this.positionX.toLowerCase()),this.positionY!==s&&(r[1]=this.positionY.toLowerCase()),h.positionX=r[0],h.positionY=r[1],"left"!=this.positionX&&"right"!=this.positionX&&(isNaN(parseInt(this.positionX))?this.positionX="center":this.positionX=parseInt(this.positionX)),"top"!=this.positionY&&"bottom"!=this.positionY&&(isNaN(parseInt(this.positionY))?this.positionY="center":this.positionY=parseInt(this.positionY)),this.position=this.positionX+(isNaN(this.positionX)?"":"px")+" "+this.positionY+(isNaN(this.positionY)?"":"px"),navigator.userAgent.match(/(iPod|iPhone|iPad)/))return this.imageSrc&&this.iosFix&&!this.$element.is("img")&&this.$element.css({backgroundImage:"url("+this.imageSrc+")",backgroundSize:"cover",backgroundPosition:this.position}),this;if(navigator.userAgent.match(/(Android)/))return this.imageSrc&&this.androidFix&&!this.$element.is("img")&&this.$element.css({backgroundImage:"url("+this.imageSrc+")",backgroundSize:"cover",backgroundPosition:this.position}),this;this.$mirror=t("<div />").prependTo(this.mirrorContainer);var a=this.$element.find(">.parallax-slider"),n=!1;0==a.length?this.$slider=t("<img />").prependTo(this.$mirror):(this.$slider=a.prependTo(this.$mirror),n=!0),this.$mirror.addClass("parallax-mirror").css({visibility:"hidden",zIndex:this.zIndex,position:"fixed",top:0,left:0,overflow:"hidden"}),this.$slider.addClass("parallax-slider").one("load",function(){h.naturalHeight&&h.naturalWidth||(h.naturalHeight=this.naturalHeight||this.height||1,h.naturalWidth=this.naturalWidth||this.width||1),h.aspectRatio=h.naturalWidth/h.naturalHeight,o.isSetup||o.setup(),o.sliders.push(h),o.isFresh=!1,o.requestRender()}),n||(this.$slider[0].src=this.imageSrc),(this.naturalHeight&&this.naturalWidth||this.$slider[0].complete||a.length>0)&&this.$slider.trigger("load")}!function(){for(var t=0,e=["ms","moz","webkit","o"],s=0;s<e.length&&!i.requestAnimationFrame;++s)i.requestAnimationFrame=i[e[s]+"RequestAnimationFrame"],i.cancelAnimationFrame=i[e[s]+"CancelAnimationFrame"]||i[e[s]+"CancelRequestAnimationFrame"];i.requestAnimationFrame||(i.requestAnimationFrame=function(e){var s=(new Date).getTime(),o=Math.max(0,16-(s-t)),h=i.setTimeout(function(){e(s+o)},o);return t=s+o,h}),i.cancelAnimationFrame||(i.cancelAnimationFrame=function(t){clearTimeout(t)})}(),t.extend(o.prototype,{speed:.2,bleed:0,zIndex:-100,iosFix:!0,androidFix:!0,position:"center",overScrollFix:!1,mirrorContainer:"body",refresh:function(){this.boxWidth=this.$element.outerWidth(),this.boxHeight=this.$element.outerHeight()+2*this.bleed,this.boxOffsetTop=this.$element.offset().top-this.bleed,this.boxOffsetLeft=this.$element.offset().left,this.boxOffsetBottom=this.boxOffsetTop+this.boxHeight;var t,i=o.winHeight,e=o.docHeight,s=Math.min(this.boxOffsetTop,e-i),h=Math.max(this.boxOffsetTop+this.boxHeight-i,0),r=this.boxHeight+(s-h)*(1-this.speed)|0,a=(this.boxOffsetTop-s)*(1-this.speed)|0;r*this.aspectRatio>=this.boxWidth?(this.imageWidth=r*this.aspectRatio|0,this.imageHeight=r,this.offsetBaseTop=a,t=this.imageWidth-this.boxWidth,"left"==this.positionX?this.offsetLeft=0:"right"==this.positionX?this.offsetLeft=-t:isNaN(this.positionX)?this.offsetLeft=-t/2|0:this.offsetLeft=Math.max(this.positionX,-t)):(this.imageWidth=this.boxWidth,this.imageHeight=this.boxWidth/this.aspectRatio|0,this.offsetLeft=0,t=this.imageHeight-r,"top"==this.positionY?this.offsetBaseTop=a:"bottom"==this.positionY?this.offsetBaseTop=a-t:isNaN(this.positionY)?this.offsetBaseTop=a-t/2|0:this.offsetBaseTop=a+Math.max(this.positionY,-t))},render:function(){var t=o.scrollTop,i=o.scrollLeft,e=this.overScrollFix?o.overScroll:0,s=t+o.winHeight;this.boxOffsetBottom>t&&this.b