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 r=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.$element.attr("src"));var h=(this.position+"").toLowerCase().match(/\S+/g)||[];if(h.length<1&&h.push("center"),1==h.length&&h.push(h[0]),"top"!=h[0]&&"bottom"!=h[0]&&"left"!=h[1]&&"right"!=h[1]||(h=[h[1],h[0]]),this.positionX!==s&&(h[0]=this.positionX.toLowerCase()),this.positionY!==s&&(h[1]=this.positionY.toLowerCase()),r.positionX=h[0],r.positionY=h[1],"left"!=this.positionX&&"right"!=this.positionX&&(isNaN(parseInt(this.positionX))?this.positionX="center":this.positionX=parseInt(this.positionX)),"top"!=this.positionY&&"bottom"!=this.positionY&&(isNaN(parseInt(this.positionY))?this.positionY="center":this.positionY=parseInt(this.positionY)),this.position=this.positionX+(isNaN(this.positionX)?"":"px")+" "+this.positionY+(isNaN(this.positionY)?"":"px"),navigator.userAgent.match(/(iPod|iPhone|iPad)/)&&this.iosDisabled)return this.imageSrc&&this.iosFix&&!this.$element.is("img")&&this.$element.css({backgroundImage:'url("'+this.imageSrc+'")',backgroundSize:"cover",backgroundPosition:this.position}),this;if(navigator.userAgent.match(/(Android)/)&&this.androidDisabled)return this.imageSrc&&this.androidFix&&!this.$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.$slider.addClass("parallax-slider").one("load",function(){r.naturalHeight&&r.naturalWidth||(r.naturalHeight=this.naturalHeight||this.height||1,r.naturalWidth=this.naturalWidth||this.width||1),r.aspectRatio=r.naturalWidth/r.naturalHeight,o.isSetup||o.setup(),o.sliders.push(r),o.isFresh=!1,o.requestRender()}),n||(this.$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)),r=i.setTimeout(function(){e(s+o)},o);return t=s+o,r}),i.cancelAnimationFrame||(i.cancelAnimationFrame=function(t){clearTimeout(t)})}();var r=!1;try{var h=Object.defineProperty({},"passive",{get:function(){r=!0}});i.addEventListener("test",null,h)}catch(t){}t.extend(o.prototype,{speed:.2,bleed:0,zIndex:-100,iosFix:!0,iosDisabled:!0,androidFix:!0,androidDisabled:!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),r=Math.max(this.boxOffsetTop+this.boxHeight-i,0),h=this.boxHeight+(s-r)*(1-this.speed)|0,a=(this.boxOffsetTop-s)*(1-this.speed)|0;h*this.aspectRatio>=this.boxWidth?(this.imageWidth=h*this.aspectRatio|0,this.imageHeight=h,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-h,"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.boxOffsetTop<=s?(this.visibility="visible",this.mirrorTop=this.boxOffsetTop-t,this.mirrorLeft=this.boxOffsetLeft-i,this.offsetTop=this.offsetBaseTop-this.mirrorTop*(1-this.speed)):this.visibility="hidden",this.$mirror.css({transform:"translate3d("+this.mirrorLeft+"px, "+(this.mirrorTop-e)+"px, 0px)",visibility:this.visibility,height:this.boxHeight,width:this.boxWidth}),this.$slider.css({transform:"translate3d("+this.offsetLeft+"px, "+this.offsetTop+"px, 0px)",position:"absolute",height:this.imageHeight,width:this.imageWidth,maxWidth:"none"})}}),t.extend(o,{scrollTop:0,scrollLeft:0,winHeight:0,winWidth:0,docHeight:1<<30,docWidth:1<<30,sliders:[],isReady:!1,isFresh:!1,isBusy:!1,setup:function(){function s(){if(f==i.pageYOffset)return i.requestAnimationFrame(s),!1;f=i.pageYOffset,h.render(),i.requestAnimationFrame(s)}if(!this.isReady){var h=this,a=t(e),n=t(i),l=function(){o.winHeight=n.height(),o.winWidth=n.width(),o.docHeight=a.height(),o.docWidth=a.width()},d=function(){var t=n.scrollTop(),i=o.docHeight-o.winHeight,e=o.docWidth-o.winWidth;o.scrollTop=Math.max(0,Math.min(i,t)),o.scrollLeft=Math.max(0,Math.min(e,n.scrollLeft())),o.overScroll=Math.max(t-i,Math.min(t,0))},p=this.scrollListener=function(){d(),o.requestRender()};n.on("resize.px.parallax load.px.parallax",function(){l(),h.refresh(),o.isFresh=!1,o.requestRender()}).on("scroll.px.parallax load.px.parallax",p),function(t,i,e){r?t.addEventListener(i,e,{passive:!0}):t.addEventListener(i,e)}(i,"touchmove",p),l(),d(),this.isReady=!0;var f=-1;s()}},configure:function(i){"object"==typeof i&&(delete i.refresh,delete i.render,t.extend(this.prototype,i))},refresh:function(){t.each(this.sliders,function(){this.refresh()}),this.isFresh=!0},render:function(){this.isFresh||this.refresh(),t.each(this.sliders,function(){this.render()})},requestRender:function(){this.render(),this.isBusy=!1},destroy:function(e){var s,r=t(e).data("px.parallax");for(r.$mirror.remove(),s=0;s<this.sliders.length;s+=1)this.sliders[s]==r&&this.sliders.splice(s,1);t(e).data("px.parallax",!1),0===this.sliders.length&&(t(i).off("scroll.px.parallax resize.px.parallax load.px.parallax"),function(t,i,e){t.removeEventListenr(i,e)}(i,"touchmove",this.scrollListener),this.isReady=!1,o.isSetup=!1)}});var a=t.fn.parallax;t.fn.parallax=function(s){return this.each(function(){var r=t(this),h="object"==typeof s&&s;this==i||this==e||r.is("body")?o.configure(h):r.data("px.parallax")?"object"==typeof s&&t.extend(r.data("px.parallax"),h):(h=t.extend({},r.data(),h),r.data("px.parallax",new o(this,h))),"string"==typeof s&&("destroy"==s?o.destroy(this):o[s]())})},t.fn.parallax.Constructor=o,t.fn.parallax.noConflict=function(){return t.fn.parallax=a,this},t(function(){t('[data-parallax="scroll"]').parallax()})}(jQuery,window,document);