coverflow.js

!function(t){var e={},n=function(t){if(!t)for(var o in e)t=e[o].id;if(t){var i=e[t];return i?i:e[t]=new n.Api(t)}return null};n.Api=function(o){function i(){a.resize()}var r,s,a=this;this.id=o,this.container=document.getElementById(o),this.config=null,this.setup=function(e){r=null,s=!1;var a={mode:"html5",flash:"coverflow.swf",width:480,height:270,item:0,backgroundcolor:"000000",backgroundopacity:1,wmode:"window",gradientcolor:void 0,coverwidth:150,coverheight:"auto",covergap:40,coverangle:70,coverdepth:170,coveroffset:130,removeblackborder:!1,fixedsize:!1,opacitydecrease:.1,reflectionopacity:.3,reflectionratio:155,reflectionoffset:0,showduration:!1,showtext:!0,textstyle:".coverflow-text{color:#f1f1f1;text-align:center;font-family:Arial Rounded MT Bold,Arial;} .coverflow-text h1{font-size:14px;font-weight:normal;line-height:21px;} .coverflow-text h2{font-size:11px;font-weight:normal;} .coverflow-text a{color:#0000EE;}",textoffset:75,tweentime:.8,rotatedelay:0,focallength:250,framerate:60,mousewheel:!0,x:0,y:0};return this.events={ready:new n.Signal,playlist:new n.Signal,focus:new n.Signal,click:new n.Signal,fadeIn:new n.Signal,fadeOut:new n.Signal},this.config=n.Utils.extend(a,e),this.config.id=this.id,this.container=document.getElementById(o),this.container.innerHTML="",this.container.tabIndex=0,n.Utils.addClass(this.container,"coverflow"),-1!==String(this.config.width).indexOf("%")&&(n.Utils.off(t,"resize",i),n.Utils.on(t,"resize",i)),this.resize(this.config.width,this.config.height),"html5"===this.getMode()?r=new n.html5(this):"flash"===this.getMode()&&(r=new n.flash(this)),this.left=r.left,this.right=r.right,this.prev=r.prev,this.next=r.next,this.to=r.to,this.fadeIn=r.fadeIn,this.fadeOut=r.fadeOut,this},this.remove=function(){var o=document.createElement("div");o.id=this.id,this.container.parentNode.replaceChild(o,this.container),this.container=o,n.Utils.off(t,"resize",i),r&&r.destroy(),delete e[this.id]},this.resize=function(t,e){n.Utils.css(this.container,{width:t,height:e}),this.config.width=this.container.clientWidth,this.config.height=this.container.clientHeight,r&&r.resize(this.config.width,this.config.height)},this.getMode=function(){return n.Utils.hasFlash&&"flash"===this.config.mode?"flash":!n.Utils.isIE&&n.Modernizr.csstransforms3d&&n.Modernizr.csstransitions&&n.Modernizr.canvas?"html5":"flash"},this.on=function(t,e){this.events[t].on(e),s&&"ready"===t&&this.events.ready.trigger.apply(this)},this.off=function(t,e){this.events[t].off(e)},this.trigger=function(t){s=!0;var e=Array.prototype.slice.call(arguments);e.shift(),this.events[t].trigger.apply(this,e)}},"undefined"!=typeof jQuery&&(jQuery.fn.coverflow=function(t){var e=n(this[0].id);return e[t]?e[t].apply(e,Array.prototype.slice.call(arguments,1)):"object"==typeof t?e.setup.apply(e,arguments):t?($.error("Method "+t+" does not exist on jQuery.coverflow"),void 0):e}),t.coverflow=n}(window),function(t){t.flash=function(t){function e(){var e='<object id="'+t.id+'-coverflow-flash" data="'+t.config.flash+'" width="100%" height="100%" type="application/x-shockwave-flash">'+'<param name="movie" value="'+t.config.flash+'" />'+'<param name="wmode" value="'+t.config.wmode+'" />'+'<param name="allowscriptaccess" value="always" />'+'<param name="flashvars" value="'+n(t.config)+'" />'+'<a href="http://get.adobe.com/flashplayer/">Get Adobe Flash player</a>'+"</object>";t.container.innerHTML=e,o=document.getElementById(t.id+"-coverflow-flash")}function n(t){var e="";for(var n in t)e+="object"==typeof t[n]?n+"="+encodeURIComponent("[[JSON]]"+JSON.stringify(t[n]))+"&":n+"="+encodeURIComponent(t[n])+"&";return e.slice(0,-1)}var o;this.resize=function(t,e){o.apiResize(t,e)},this.left=function(){o.apiLeft()},this.right=function(){o.apiRight()},this.prev=function(){o.apiPrev()},this.next=function(){o.apiNext()},this.to=function(t){o.apiTo(t)},this.fadeIn=function(e){t.events.fadeIn.off().on(e),o.apiFadeIn()},this.fadeOut=function(e){t.events.fadeOut.off().on(e),o.apiFadeOut()},this.destroy=function(){},e()}}(coverflow),function(t){t.html5=function(e){function n(){var n=document.createElement("style");n.type="text/css",document.getElementsByTagName("head")[0].appendChild(n),n.appendChild(document.createTextNode(m.textstyle));var i=t.Utils.hexToRgb(m.backgroundcolor);m.backgroundcolor="rgba("+i.r+","+i.g+","+i.b+","+m.backgroundopacity+")",g.style.backgroundColor=m.backgroundcolor,void 0!==m.gradientcolor&&(i=t.Utils.hexToRgb(m.gradientcolor),m.gradientcolor="rgba("+i.r+","+i.g+","+i.b+","+m.backgroundopacity+")",g.style.background="-webkit-gradient(linear, left top, left bottom, from("+m.gradientcolor+"), to("+m.backgroundcolor+"))"),e.trigger("ready"),e.events.playlist.on(o);var r=new t.PlaylistLoader(e);r.load(e.config.playlist)}function o(e){h=e,m.coverheight="auto"==m.coverheight?m.height:m.coverheight,d&&d.destroy(),d=new t.CoverFlow(g,h,m),g.appendChild(d.domElement),u&&g.removeChild(u),m.showtext===!0&&(u=document.createElement("div"),t.Utils.addClass(u,"coverflow-text"),g.appendChild(u)),d.onFocus(r),d.onClick(s),v.resize(m.width,m.height),m.rotatedelay>0&&(p&&v.stopRotation(),p=setInterval(a,m.rotatedelay),g.addEventListener("touchstart",v.stopRotation,!1),g.addEventListener("mousedown",v.stopRotation,!1)),g.addEventListener("webkitTransitionEnd",f,!1),g.addEventListener("transitionend",f,!1),m.mousewheel&&(g.addEventListener("mousewheel",i),g.addEventListener("DOMMouseScroll",i))}function i(t){t.preventDefault();var e=t.detail?-120*t.detail:t.wheelDelta,n=Math.ceil(Math.abs(e)/120);if(n>0){var o=Math.abs(e)/e,i=null;if(o>0?i=v.left:0>o&&(i=v.right),"function"==typeof i)for(var r=0;n>r;r++)i()}}function r(t){if(m.showtext===!0){var n=h[t];n&&(u.innerHTML="<h1>"+(void 0===n.title?"":n.title)+"</h1><h2>"+(void 0===n.description?"":n.description)+"</h2>")}e.trigger("focus",t,h[t]?h[t].link:void 0)}function s(t){m.rotatedelay>0&&p&&v.stopRotation(),e.trigger("click",t,h[t]?h[t].link:void 0)}function a(){d.next()}function c(){g.style.opacity=1}function l(){u&&(u.style.opacity=0),d.fadeOut(function(){g.style.opacity=0})}function f(t){t.target===g&&(0===parseInt(g.style.opacity,10)?e.events.fadeOut.trigger():(u&&(u.style.opacity=1),d.fadeIn(function(){e.events.fadeIn.trigger()})))}var h,d,u,p,v=this,g=e.container,m=e.config;this.stopRotation=function(){g.removeEventListener("touchstart",v.stopRotation,!1),g.removeEventListener("mousedown",v.stopRotation,!1),clearInterval(p)},this.resize=function(t,e){d&&d.resize(t,e),u&&(u.style.top=e-m.textoffset+"px")},this.left=function(){d.left()},this.right=function(){d.right()},this.prev=function(){d.prev()},this.next=function(){d.next()},this.to=function(t){d.to(t)},this.fadeIn=function(t){e.events.fadeIn.off().on(t),c()},this.fadeOut=function(t){e.events.fadeOut.off().on(t),l()},this.destroy=function(){d&&d.destroy()},n()}}(coverflow),function(t){t.CoverFlow=function(e,n,o){function i(t){t.stopPropagation(),0===parseInt(m.domElement.firstChild.style.opacity,10)?(a.domElement.style.opacity=0,c.trigger()):1===parseInt(m.domElement.firstChild.style.opacity,10)&&l.trigger()}function r(t){if(0===t.button){for(var e=this,n=0;null!==(e=e.previousSibling);)n+=1;var o=a.covers[n],i=t.offsetY||t.layerY;i<o.halfHeight&&(t.preventDefault(),o.index!=u?a.to(o.index):a.clicked(o.index))}}function s(t){var e=t.target;if("INPUT"!=e.tagName&&"SELECT"!=e.tagName&&"TEXTAREA"!=e.tagName&&-1!==[37,39,38,40,32].indexOf(t.keyCode))switch(t.preventDefault(),t.keyCode){case 37:a.left();break;case 39:a.right();break;case 38:a.to(0);break;case 40:a.to(f-1);break;case 32:a.clicked(u)}}var a=this;this.config=o;var c=new t.Signal,l=new t.Signal,f=n.length,h=0,d=0,u=0,p=[],v=[];this.covers=[],this.transforms=[],this.prevF=-1,this.transformProp=t.Modernizr.prefixed("transform"),this.space=o.coveroffset+o.covergap,this._angle="rotateY("+-o.coverangle+"deg)",this.angle="rotateY("+o.coverangle+"deg)",this.offsetX=0,this.offsetY=0,this.domElement=document.createElement("div"),this.domElement.className="coverflow-wrap",this.tray=document.createElement("div"),this.tray.className="coverflow-tray",this.domElement.appendChild(this.tray),this.domElement.style[t.Modernizr.prefixed("perspective")]=o.focallength+"px";for(var g=new t.Controller(this,this.tray,this.config),m=null,y=0;f>y;y++)m=new t.Cover(a,y,n[y].image,n[y].duration,o),this.tray.appendChild(m.domElement),m.domElement.onmousedown=r,m.domElement.style[t.Modernizr.prefixed("transitionDuration")]=this.config.tweentime+"s",this.covers[y]=m;m&&(m.domElement.firstChild.addEventListener("webkitTransitionEnd",i,!1),m.domElement.firstChild.addEventListener("transitionend",i,!1)),e.addEventListener("touchstart",g,!0),e.addEventListener("keydown",s,!1),this.fadeOut=function(t){c.off().on(t);for(var e=0;e<this.covers.length;e++)this.covers[e].domElement.firstChild.style.opacity=0},this.fadeIn=function(t){l.off().on(t),a.domElement.style.opacity=1;for(var e=0;e<this.covers.length;e++)this.covers[e].domElement.firstChild.style.opacity=1},this.itemComplete=function(t){if(d=t>d?t:d,h+=1,h==f){a.to(o.item);for(var e=0;f>e;e++)this.covers[e].setY(d)}},this.left=function(){u>0&&a.to(u-1)},this.right=function(){f-1>u&&a.to(u+1)},this.prev=function(){u>0?a.to(u-1):a.to(f-1)},this.next=function(){f-1>u?a.to(u+1):a.to(0)},this.to=function(t){t>f-1?t=f-1:0>t&&(t=0),u=t,g.to(t)},this.focused=function(t){for(var e=0;e<p.length;e++)p[e](t)},this.clicked=function(t){for(var e=0;e<v.length;e++)v[e](t)},this.onFocus=function(t){p.push(t)},this.onClick=function(t){v.push(t)},this.destroy=function(){e.removeChild(a.domElement),e.removeEventListener("touchstart",g,!0),e.removeEventListener("keydown",s,!1)},this.resize=function(){this.offsetX=.5*o.width+o.x,this.offsetY=.5*o.height+o.y,this.setTrayStyle(g.currentX+this.offsetX,this.offsetY)}},t.CoverFlow.prototype.updateTouchEnd=function(t){var e=this.getFocusedCover(t.currentX);t.currentX=-e*this.config.covergap,this.update(t.currentX)},t.CoverFlow.prototype.getFocusedCover=function(t){var e=-Math.round(t/this.config.covergap);return Math.min(Math.max(e,0),this.covers.length-1)},t.CoverFlow.prototype.getFocusedCoverOne=function(t){var e=-Math.round(t/this.config.covergap);return Math.min(Math.max(e,-1),this.covers.length)},t.CoverFlow.prototype.tap=function(t,e,n){var o=-Math.round(n/this.config.covergap),i=this.covers[o];if(i.domElement==t.target.parentNode){var r=this.findPos(this.tray),s=r.y+this.offsetY+i.halfHeight/2;s>e&&this.clicked(i.index)}},t.CoverFlow.prototype.findPos=function(t){var e=0,n=0;if(t.offsetParent){do e+=t.offsetLeft,n+=t.offsetTop;while(null!==(t=t.offsetParent));return{x:e,y:n}}},t.CoverFlow.prototype.setTrayStyle=function(t,e){this.tray.style[this.transformProp]="translate3d("+t+"px, "+e+"px, 0)"},t.CoverFlow.prototype.setCoverStyle=function(t,e,n){this.transforms[e]!=n&&(t.domElement.style[this.transformProp]=n,this.transforms[e]=n)},t.CoverFlow.prototype.getCoverTransform=function(t,e){var n=e*this.config.covergap;return t==e?"translate3d("+n+"px, 0, 0)":e>t?"translate3d("+(n+this.space)+"px, 0, "+-this.config.coverdepth+"px) "+this._angle:"translate3d("+(n-this.space)+"px, 0, "+-this.config.coverdepth+"px) "+this.angle},t.CoverFlow.prototype.update=function(t){this.setTrayStyle(t+this.offsetX,this.offsetY);var e=this.getFocusedCoverOne(t);e!=this.prevF&&(this.focused(e),this.prevF=e);for(var n=0;n<this.covers.length;n++)this.setCoverStyle(this.covers[n],n,this.getCoverTransform(e,n))}}(coverflow),function(t){t.Cover=function(e,n,o,i,r){function s(){var n,o=p.width,s=p.height,v=0,g=0,m=0;if(r.removeblackborder){var y=document.createElement("canvas");y.width=o,y.height=s,n=y.getContext("2d"),n.drawImage(p,0,0);for(var w=n.getImageData(0,0,o,s).data,x=0,C=0,E=0,b=0;s>b;b++){for(x=0,C=0;o>C;C++)E=4*(b*o+C),x+=w[E]<<16|w[E+1]<<8|w[E+2];if(!(460551>x/o))break;v++}for(b=s-1;b>=0;b--){for(x=0,C=0;o>C;C++)E=4*(b*o+C),x+=w[E]<<16|w[E+1]<<8|w[E+2];if(!(460551>x/o))break;g++}s-=v+g}var k;if(r.fixedsize?(a=Math.round(f),c=Math.round(h),c/s>a/o?(k=c/s,m+=.5*(o-a/k)):(k=a/o,v+=.5*(s-c/k))):f>=h?(a=Math.round(o/s*h),c=Math.round(h),k=h/s):(a=Math.round(f),c=Math.round(s/o*f),k=f/o),l.halfHeight=c,d.top=-(.5*c)+"px",d.left=-(.5*a)+"px",d.width=a+"px",d.height=c+"px",u.width=a,u.height=2*c,n=u.getContext("2d"),n.drawImage(p,m,v,o-2*m,s-2*v,0,0,a,c),r.showduration&&i>0){n.save();var M=t.Cover.formatTime(i);n.font="normal 10px Arial Rounded MT Bold, Arial";var T=n.measureText(M),I=T.width;n.roundRect(a-(I+9),5,I+4,11,2),n.fillStyle="#000",n.globalAlpha=.7,n.fill(),n.fillStyle="#fff",n.globalAlpha=.8,n.textAlign="right",n.fillText(M,a-7,14),n.restore()}r.reflectionopacity>0&&(d.height=2*c+"px",t.Cover.reflect(u,a,c,r.reflectionopacity,r.reflectionratio,r.reflectionoffset)),e.itemComplete(c)}var a,c,l=this,f=r.coverwidth,h=r.coverheight;this.index=n,this.halfHeight=0,this.domElement=document.createElement("div"),this.domElement.className=t.Cover.getClassName();var d=this.domElement.style;1===r.backgroundopacity&&(d.backgroundColor=r.backgroundcolor);var u=document.createElement("canvas");this.domElement.appendChild(u);var p=new Image;p.onload=s,p.src=o,this.setY=function(t){var e=.5*t-(t-c);this.domElement.style.top=-e+"px"}},t.Cover.getClassName=function(){return"coverflow-cell"},t.Cover.reflect=function(t,e,n,o,i,r){var s=t.getContext("2d");s.save(),s.scale(1,-1),s.drawImage(t,0,2*-n-r),s.restore(),s.globalCompositeOperation="destination-out";var a=s.createLinearGradient(0,0,0,n);a.addColorStop(i/255,"rgba(255, 255, 255, 1.0)"),a.addColorStop(0,"rgba(255, 255, 255, "+(1-o)+")"),s.translate(0,n+r),s.fillStyle=a,s.fillRect(0,0,e,n)},t.Cover.formatTime=function(t){var e=Math.floor(t/3600),n=Math.floor(t%3600/60),o=Math.floor(t%3600%60);return(0===e?"":e.toString()+":")+n.toString()+":"+(10>o?"0"+o.toString():o.toString())},window.CanvasRenderingContext2D&&CanvasRenderingContext2D.prototype&&(CanvasRenderingContext2D.prototype.roundRect=function(t,e,n,o,i){return 2*i>n&&(i=n/2),2*i>o&&(i=o/2),this.beginPath(),this.moveTo(t+i,e),this.arcTo(t+n,e,t+n,e+o,i),this.arcTo(t+n,e+o,t,e+o,i),this.arcTo(t,e+o,t,e,i),this.arcTo(t,e,t+n,e,i),this.closePath(),this})}(coverflow),function(t){t.Controller=function(e,n,o){this.flow=e,this.elem=n,this.config=o,this.currentX=0,this.currentY=0,this.transformProp=t.Modernizr.prefixed("transitionDuration")},t.Controller.prototype.handleEvent=function(t){this[t.type](t)},t.Controller.prototype.touchstart=function(t){t.stopImmediatePropagation(),this.startX=t.touches[0].pageX-this.currentX,this.startY=t.touches[0].pageY-this.currentY,this.pageY=t.touches[0].pageY,this.moved=!1,window.addEventListener("touchmove",this,!0),window.addEventListener("touchend",this,!0),this.elem.style[this.transformProp]="0s"},t.Controller.prototype.touchmove=function(t){t.stopImmediatePropagation(),this.lastX=this.currentX,this.lastY=this.currentY,this.currentX=t.touches[0].pageX-this.startX,this.currentY=t.touches[0].pageY-this.startY,Math.abs(this.currentX-this.lastX)>Math.abs(this.currentY-this.lastY)?(t.preventDefault(),this.moved=!0,this.lastMoveTime=(new Date).getTime(),this.flow.update(this.currentX)):(window.removeEventListener("touchmove",this,!0),window.removeEventListener("touchend",this,!0))},t.Controller.prototype.touchend=function(t){if(t.stopImmediatePropagation(),window.removeEventListener("touchmove",this,!0),window.removeEventListener("touchend",this,!0),this.elem.style[this.transformProp]=this.config.tweentime+"s",this.moved){t.preventDefault();var e=this.currentX-this.lastX,n=(new Date).getTime()-this.lastMoveTime+1;this.currentX=this.currentX+50*e/n,this.flow.updateTouchEnd(this)}else this.flow.tap(t,this.pageY,this.currentX)},t.Controller.prototype.to=function(t){this.currentX=-t*this.config.covergap,this.flow.update(this.currentX)}}(coverflow),function(t){t.PlaylistLoader=function(e){function n(t){var n=[];if(r.hasOwnProperty("route")){r.route.hasOwnProperty("playlist")&&(t=t[r.route.playlist]);for(var i=0;i<t.length;i++)n[i]={image:o(t[i],"image"),title:o(t[i],"title"),description:o(t[i],"description"),link:o(t[i],"link"),duration:o(t[i],"duration")}}e.events.playlist.trigger(n),e.events.playlist.off()}function o(t,e){if(r.route.hasOwnProperty(e)){for(var n=t,o=r.route[e].split("."),i=0;i<o.length;i++)n=n[o[i]];return n}return t[e]}function i(t){var n=JSON.parse(t.responseText);e.events.playlist.trigger(n),e.events.playlist.off()}var r=e.config;this.load=function(o){"string"==typeof o?-1!==o.indexOf("callback=?")?t.Utils.jsonp(o,n):t.Utils.ajax(o,i):"object"==typeof o&&(e.events.playlist.trigger(o),e.events.playlist.off())}}}(coverflow),function(t){t.Signal=function(){var t=[];this.on=function(e){return t.push(e),this},this.trigger=function(){for(var e=Array.prototype.slice.call(arguments),n=0;n<t.length;n++)"function"==typeof t[n]&&t[n].apply(this,e);return this},this.off=function(e){if(e)for(var n=0;n<t.length;n++)t[n]===e&&(t.splice(n,1),n--);else t=[];return this}}}(coverflow),function(t){t.Utils=function(){},t.Utils.hasFlash="undefined"!=typeof navigator.plugins&&"object"==typeof navigator.plugins["Shockwave Flash"]||window.ActiveXObject&&new ActiveXObject("ShockwaveFlash.ShockwaveFlash")!==!1,t.Utils.isIE=null!==navigator.userAgent.match(/msie/i),t.Utils.ajax=function(t,e,n){var o;o=window.XMLHttpRequest?new XMLHttpRequest:new ActiveXObject("Microsoft.XMLHTTP"),o.onreadystatechange=function(){4===o.readyState&&(200===o.status?e&&e(o):n&&n(t))};try{o.open("GET",t,!0),o.send(null)}catch(i){n&&n(t)}return o},t.Utils.jsonp=function(e,n,o){var i=-1===e.indexOf("?")?"?":"&";o=o||{};for(var r in o)o.hasOwnProperty(r)&&(i+=encodeURIComponent(r)+"="+encodeURIComponent(o[r])+"&");var s=t.Utils.uniqueId("json_call");window[s]=function(t){n(t),window[s]=null};var 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