coverflow.js

!function(a,b){var c={},d=a.coverflow=function(a){if(!a)for(var b in c)a=c[b].id;if(a){var d=c[a];return d?d:c[a]=new g(a)}return null};"undefined"!=typeof jQuery&&(jQuery.fn.coverflow=function(a){var b=d(this[0].id);return b[a]?b[a].apply(b,Array.prototype.slice.call(arguments,1)):"object"==typeof a?b.setup.apply(b,arguments):a?void $.error("Method "+a+" does not exist on jQuery.coverflow"):b});var e=0,f={hasFlash:"undefined"!=typeof navigator.plugins&&"object"==typeof navigator.plugins["Shockwave Flash"]||a.ActiveXObject&&new ActiveXObject("ShockwaveFlash.ShockwaveFlash")!==!1,isIE:!!navigator.userAgent.match(/msie/i)||!!navigator.userAgent.match(/Trident\/7\./),uniqueId:function(a){var b=e++;return a?a+b:b},bind:function(a,b){return function(){a.apply(b)}},on:function(a,b,c){if(a)for(var d=b.split(" "),e=0;e<d.length;e++)a.attachEvent?a.attachEvent("on"+d[e],c):a.addEventListener(d[e],c,!1)},off:function(a,b,c){if(a)for(var d=b.split(" "),e=0;e<d.length;e++)a.detachEvent?a.detachEvent("on"+d[e],c):a.removeEventListener(d[e],c,!1)},extend:function(a,b){for(var c in b)a[c]=b[c];return a},addClass:function(a,b){-1===a.className.indexOf(b)&&(a.className+=" "+b)},css:function(a,b){if(a)for(var c in b)if("undefined"!=typeof b[c]){if("number"==typeof b[c]&&"zIndex"!=c&&"opacity"!=c){if(isNaN(b[c]))continue;b[c]=Math.ceil(b[c])+"px"}try{a.style[c]=b[c]}catch(d){}}},hexToRgb:function(a){var b=/^#?([a-f\d])([a-f\d])([a-f\d])$/i;a=a.replace(b,function(a,b,c,d){return b+b+c+c+d+d});var c=/^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(a);return c?{r:parseInt(c[1],16),g:parseInt(c[2],16),b:parseInt(c[3],16)}:null},ajax:function(b,c,d){var e;e=a.XMLHttpRequest?new XMLHttpRequest:new ActiveXObject("Microsoft.XMLHTTP"),e.onreadystatechange=function(){4===e.readyState&&(200===e.status?c&&c(e):d&&d(b))};try{e.open("GET",b,!0),e.send(null)}catch(f){d&&d(b)}return e},jsonp:function(c,d,e){var g=-1===c.indexOf("?")?"?":"&";e=e||{};for(var h in e)e.hasOwnProperty(h)&&(g+=encodeURIComponent(h)+"="+encodeURIComponent(e[h])+"&");var i=f.uniqueId("json_call");a[i]=function(b){d(b),a[i]=null};var j=b.createElement("script");-1!==c.indexOf("callback=?")?j.src=c.replace("callback=?","callback="+i)+g.slice(0,-1):j.src=c+g+"callback="+i,j.async=!0,j.onload=j.onreadystatechange=function(){this.readyState&&"loaded"!==this.readyState&&"complete"!==this.readyState||(j.onload=j.onreadystatechange=null,j&&j.parentNode&&j.parentNode.removeChild(j))};var k=b.head||b.getElementsByTagName("head")[0]||b.documentElement;k.insertBefore(j,k.firstChild)},getResizeDimensions:function(a,b,c,d){var e=Math.min(c/a,d/b);return{width:a*e,height:b*e,ratio:e}},getCropOffsets:function(a,b,c,d){var e=[c/a,d/b];return e[0]<e[1]?{left:.5*(a-c/e[1]),top:0,ratio:e[1]}:{top:.5*(b-d/e[0]),left:0,ratio:e[0]}},getChildIndex:function(a){for(var b=0;null!==(a=a.previousSibling);)1===a.nodeType&&++b;return b}},g=function(d){function e(){i.resize()}var g,h,i=this;this.id=d,this.el=b.getElementById(d),this.config=null,this.setup=function(c){g=null,h=!1;var i={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,fixedsize:!1,opacitydecrease:.1,reflectionopacity:.3,reflectionratio:155,reflectionoffset:0,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 o,playlist:new o,focus:new o,click:new o},this.config=f.extend(i,c),this.config.id=this.id,this.el=b.getElementById(d),this.el.innerHTML="",this.el.tabIndex=0,f.addClass(this.el,"coverflow"),-1!==String(this.config.width).indexOf("%")&&(f.off(a,"resize",e),f.on(a,"resize",e)),this.resize(this.config.width,this.config.height),"html5"===this.getMode()?g=new m(this):"flash"===this.getMode()&&(g=new k(this)),this.left=g.left,this.right=g.right,this.prev=g.prev,this.next=g.next,this.to=g.to,this},this.remove=function(){var d=b.createElement("div");d.id=this.id,this.el.parentNode.replaceChild(d,this.el),this.el=d,f.off(a,"resize",e),g&&g.destroy(),delete c[this.id]},this.resize=function(a,b){f.css(this.el,{width:a,height:b}),this.config.width=this.el.clientWidth,this.config.height=this.el.clientHeight,g&&g.resize(this.config.width,this.config.height)},this.getMode=function(){return f.hasFlash&&"flash"===this.config.mode?"flash":!f.isIE&&Modernizr.csstransforms3d&&Modernizr.csstransitions&&Modernizr.canvas?"html5":"flash"},this.on=function(a,b){return this.events[a].on(b),h&&"ready"===a&&this.events.ready.trigger.apply(this),this},this.off=function(a,b){return this.events[a].off(b),this},this.trigger=function(a){h=!0;var b=Array.prototype.slice.call(arguments);b.shift(),this.events[a].trigger.apply(this,b)}},h=function(a,b,c){this.flow=a,this.elem=b,this.config=c,this.currentX=0,this.currentY=0,this.transformProp=Modernizr.prefixed("transitionDuration")};h.prototype.handleEvent=function(a){this[a.type](a)},h.prototype.touchstart=function(b){b.stopImmediatePropagation(),this.startX=b.touches[0].pageX-this.currentX,this.startY=b.touches[0].pageY-this.currentY,this.pageY=b.touches[0].pageY,this.moved=!1,a.addEventListener("touchmove",this,!0),a.addEventListener("touchend",this,!0),this.elem.style[this.transformProp]="0s"},h.prototype.touchmove=function(b){b.stopImmediatePropagation(),this.lastX=this.currentX,this.lastY=this.currentY,this.currentX=b.touches[0].pageX-this.startX,this.currentY=b.touches[0].pageY-this.startY,Math.abs(this.currentX-this.lastX)>Math.abs(this.currentY-this.lastY)?(b.preventDefault(),this.moved=!0,this.lastMoveTime=(new Date).getTime(),this.flow.update(this.currentX)):(a.removeEventListener("touchmove",this,!0),a.removeEventListener("touchend",this,!0))},h.prototype.touchend=function(b){if(b.stopImmediatePropagation(),b.preventDefault(),a.removeEventListener("touchmove",this,!0),a.removeEventListener("touchend",this,!0),this.elem.style[this.transformProp]=this.config.tweentime+"s",this.moved){var c=this.currentX-this.lastX,d=(new Date).getTime()-this.lastMoveTime+1;this.currentX=this.currentX+50*c/d,this.flow.updateTouchEnd(this)}else this.flow.tap(b,this.currentX)},h.prototype.to=function(a){this.currentX=-a*this.config.covergap,this.flow.update(this.currentX)};var i=function(a,c,d,e){function g(){var b=n.width,c=n.height,d=0,g=0;if(e.fixedsize){h=Math.round(e.coverwidth),j=Math.round(e.coverheight);var o=f.getCropOffsets(b,c,h,j);g=Math.round(o.left),d=Math.round(o.top)}else{var p=f.getResizeDimensions(b,c,e.coverwidth,e.coverheight);h=Math.round(p.width),j=Math.round(p.height)}k.width=h,k.height=j,k.halfHeight=j,l.top=-(.5*j)+"px",l.left=-(.5*h)+"px",l.width=h+"px",l.height=j+"px",m.width=h,m.height=2*j;var q=m.getContext("2d");q.drawImage(n,g,d,b-2*g,c-2*d,0,0,h,j),e.reflectionopacity>0&&(l.height=2*j+"px",i.reflect(m,h,j,e.reflectionopacity,e.reflectionratio,e.reflectionoffset)),a.itemComplete(j)}var h,j,k=this;this.index=c,this.halfHeight=0,this.el=b.createElement("div"),this.el.className=i.getClassName();var l=this.el.style;1===e.backgroundopacity&&(l.backgroundColor=e.backgroundcolor);var m=b.createElement("canvas");this.el.appendChild(m);var n=new Image;n.onload=g,n.src=d,this.setY=function(a){var b=.5*a-(a-j);this.el.style.top=-b+"px"}};i.getClassName=function(){return"coverflow-cell"},i.reflect=function(a,b,c,d,e,f){var g=a.getContext("2d");g.save(),g.scale(1,-1),g.drawImage(a,0,2*-c-f),g.restore(),g.globalCompositeOperation="destination-out";var h=g.createLinearGradient(0,0,0,c);h.addColorStop(e/255,"rgba(255, 255, 255, 1.0)"),h.addColorStop(0,"rgba(255, 255, 255, "+(1-d)+")"),g.translate(0,c+f),g.fillStyle=h,g.fillRect(0,0,b,c)};var j=function(a,c,d){function e(a){if(0===a.button){a.stopImmediatePropagation(),a.preventDefault();var b=j.hits[f.getChildIndex(a.target)];b.index==p?j.events.click.trigger(b.index):j.to(b.index)}}function g(a){var b=a.target;if("INPUT"!=b.tagName&&"SELECT"!=b.tagName&&"TEXTAREA"!=b.tagName&&-1!==[37,39,38,40,32].indexOf(a.keyCode))switch(a.preventDefault(),a.keyCode){case 37:j.left();break;case 39:j.right();break;case 38:j.to(0);break;case 40:j.to(k-1);break;case 32:j.events.click.trigger(p)}}var j=this;this.config=d;var k=c.length,m=0,n=0,p=0;this.events={focus:new o,click:new o},this.covers=[],this.transforms=[],this.hits=[],this.transforms2=[],this.prevF=-1,this.transformProp=Modernizr.prefixed("transform"),this.space=d.coveroffset+d.covergap,this._angle="rotateY("+-d.coverangle+"deg)",this.angle="rotateY("+d.coverangle+"deg)",this.offsetX=0,this.offsetY=0,this.el=b.createElement("div"),this.el.className="coverflow-wrap",this.tray=b.createElement("div"),this.tray.className="coverflow-tray",this.el.appendChild(this.tray),this.rect=b.createElement("div"),this.rect.className="coverflow-rect",this.el.appendChild(this.rect),this.el.style[Modernizr.prefixed("perspective")]=d.focallength+"px",this.tray.style[Modernizr.prefixed("transitionDuration")]=this.config.tweentime+"s";for(var q=new h(this,this.tray,this.config),r=null,s=null,t=0;k>t;t++)r=new i(j,t,c[t].image,d),this.tray.appendChild(r.el),r.el.style[Modernizr.prefixed("transitionDuration")]=this.config.tweentime+"s",this.covers[t]=r,s=new l(j,t,d),this.rect.appendChild(s.el),this.hits[t]=s;a.addEventListener("touchstart",q,!0),a.addEventListener("keydown",g,!1),this.rect.addEventListener("mousedown",e,!1),this.itemComplete=function(a){if(n=a>n?a:n,m+=1,m==k)for(var b=0;k>b;b++){var c=this.covers[b];c.setY(n),this.hits[b].resize(c.width,c.height),this.hits[b].setY(n)}},this.left=function(){p>0&&j.to(p-1)},this.right=function(){k-1>p&&j.to(p+1)},this.prev=function(){p>0?j.to(p-1):j.to(k-1)},this.next=function(){k-1>p?j.to(p+1):j.to(0)},this.to=function(a){var b;"string"==typeof a&&(b=/^([+-])=(\d)/.exec(a))&&(a=(b[1]+1)*b[2]+p),a>k-1?a=k-1:0>a&&(a=0),p=a,q.to(a)},this.on=function(a,b){this.events[a].on(b)},this.destroy=function(){a.removeChild(j.el),a.removeEventListener("touchstart",q,!0),a.removeEventListener("keydown",g,!1)},this.resize=function(){this.offsetX=.5*d.width+d.x,this.offsetY=.5*d.height+d.y,this.setTrayStyle(q.currentX+this.offsetX,this.offsetY),this.setRectStyle(q.currentX+this.offsetX,this.offsetY)}};j.prototype.updateTouchEnd=function(a){var b=this.getFocusedCover(a.currentX);a.currentX=-b*this.config.covergap,this.update(a.currentX)},j.prototype.getFocusedCover=function(a){var b=-Math.round(a/this.config.covergap);return Math.min(Math.max(b,0),this.covers.length-1)},j.prototype.getFocusedCoverOne=function(a){var b=-Math.round(a/this.config.covergap);return Math.min(Math.max(b,-1),this.covers.length)},j.prototype.tap=function(a,b){if("coverflow-hit"==a.target.className){var c=this.getFocusedCover(b),d=this.hits[f.getChildIndex(a.target)];d.index==c?this.events.click.trigger(d.index):this.to(d.index)}},j.prototype.setTrayStyle=function(a,b){this.tray.style[this.transformProp]="translate3d("+a+"px, "+b+"px, -"+this.config.coverdepth+"px)"},j.prototype.setRectStyle=function(a,b){this.rect.style[this.transformProp]="translate3d("+a+"px, "+b+"px, -"+this.config.coverdepth+"px)"},j.prototype.setHitStyle=function(a,b,c){this.transforms2[b]!=c&&(a.el.style[this.transformProp]=c,this.transforms2[b]=c)},j.prototype.setCoverStyle=function(a,b,c){this.transforms[b]!=c&&(a.el.style[this.transformProp]=c,this.transforms[b]=c)},j.prototype.getCoverTransform=function(a,b){var c=b*this.config.covergap;return a==b?"translate3d("+c+"px, 0, "+this.config.coverdepth+"px)":b>a?"translate3d("+(c+this.space)+"px, 0, 0) "+this._angle:"translate3d("+(c-this.space)+"px, 0, 0) "+this.angle},j.prototype.update=function(a){var b=this.getFocusedCoverOne(a);b!=this.prevF&&(this.events.focus.trigger(b),this.prevF=b),this.setRectStyle(a+this.offsetX,this.offsetY),this.setTrayStyle(a+this.offsetX,this.offsetY);for(var c=0;c<this.covers.length;c++)this.setHitStyle(this.hits[c],c,this.getCoverTransform(b,c)),this.setCoverStyle(this.covers[c],c,this.getCoverTransform(b,c))};var k=function(a){function c(){var c='<object id="'+a.id+'-coverflow-flash" data="'+a.config.flash+'" width="100%" height="100%" type="application/x-shockwave-flash"><param name="movie" value="'+a.config.flash+'" /><param name="wmode" value="'+a.config.wmode+'" /><param name="allowscriptaccess" value="always" /><param name="flashvars" value="'+d(a.config)+'" /><a href="http://get.adobe.com/flashplayer/">Get Adobe Flash player</a></object>';a.el.innerHTML=c,e=b.getElementById(a.id+"-coverflow-flash")}function d(a){var b="";for(var c in a)b+="object"==typeof a[c]?c+"="+encodeURIComponent("[[JSON]]"+JSON.stringify(a[c]))+"&":c+"="+encodeURIComponent(a[c])+"&";return b.slice(0,-1)}var e;this.resize=function(a,b){e.apiResize(a,b)},this.left=function(){e.apiLeft()},this.right=function(){e.apiRight()},this.prev=function(){e.apiPrev()},this.next=function(){e.apiNext()},this.to=function(a){e.apiTo(a)},this.destroy=function(){},c()},l=function(a,c,d){this.index=c,this.el=b.createElement("div"),this.el.className=l.getClassName(),this.resize(d.coverwidth,d.coverheight),this.setY=function(a){var b=.5*a-(a-this.height);this.el.style.top=-b+"px"}};l.prototype.resize=function(a,b){this.height=b,f.css(this.el,{backgroundColor:"#00ff00",width:a,height:b,top:.5*-b,left:.5*-a})},l.getClassName=function(){return"coverflow-hit"};var m=function(a){function c(){var c=b.createElement("style");c.type="text/css",b.getElementsByTagName("head")[0].appendChild(c),c.appendChild(b.createTextNode(r.textstyle));var e=f.hexToRgb(r.backgroundcolor);r.backgroundcolor="rgba("+e.r+","+e.g+","+e.b+","+r.backgroundopacity+")",q.style.backgroundColor=r.backgroundcolor,void 0!==r.gradientcolor&&(e=f.hexToRgb(r.gradientcolor),r.gradientcolor="rgba("+e.r+","+e.g+","+e.b+","+r.backgroundopacity+")",q.style.background="-webkit-gradient(linear, left top, left bottom, from("+r.gradientcolor+"), to("+r.backgroundcolor+"))"),a.trigger("ready"),a.events.playlist.on(d);var g=new n(a);g.load(a.config.playlist)}function d(a){k=a,r.rotatedelay>0&&(q.addEventListener("touchstart",p.stopRotation,!0),q.addEventListener("mousedown",p.stopRotation,!0),q.addEventListener("keydown",p.stopRotation,!0)),r.coverheight="auto"==r.coverheight?r.height:r.coverheight,l&&l.destroy(),l=new j(q,k,r),q.appendChild(l.el),m&&q.removeChild(m),r.showtext===!0&&(m=b.createElement("div"),f.addClass(m,"coverflow-text"),q.appendChild(m)),l.on("focus",g),l.on("click",h),l.to(r.item),p.resize(r.width,r.height),r.rotatedelay>0&&(p.stopRotation(),o=setInterval(i,r.rotatedelay)),r.mousewheel&&(q.addEventListener("mousewheel",e),q.addEventListener("DOMMouseScroll",e))}function e(a){a.preventDefault(),p.stopRotation();var b=a.detail?-120*a.detail:a.wheelDelta,c=Math.ceil(Math.abs(b)/120);if(c>0){var d=Math.abs(b)/b,e=null;if(d>0?e=p.left:0>d&&(e=p.right),"function"==typeof e)for(var f=0;c>f;f++)e()}}function g(b){if(r.showtext===!0){var c=k[b];c&&(m.innerHTML="<h1>"+(void 0===c.title?"":c.title)+"</h1><h2>"+(void 0===c.description?"":c.description)+"</h2>")}a.trigger("focus",b,k[b]?k[b].link:void 0)}function h(b){p.stopRotation(),a.trigger("click",b,k[b]?k[b].link:void 0)}function i(){l.next()}var k,l,m,o,p=this,q=a.el,r=a.config;this.stopRotation=function(){o&&(q.removeEventListener("touchstart",p.stopRotation,!0),q.removeEventListener("mousedown",p.stopRotation,!0),q.removeEventListener("keydown",p.stopRotation,!0),clearInterval(o),o=!1)},this.resize=function(a,b){l&&l.resize(a,b),m&&(m.style.top=b-r.textoffset+"px")},this.left=function(){p.stopRotation(),l.left()},this.right=function(){p.stopRotation(),l.right()},this.prev=function(){p.stopRotation(),l.prev()},this.next=function(){p.stopRotation(),l.next()},this.to=function(a){p.stopRotation(),l.to(a)},this.destroy=function(){l&&l.destroy()},c()};a.Modernizr=function(a,b,c){function d(a){r.cssText=a}function e(a,b){return typeof a===b}function f(a,b){return!!~(""+a).indexOf(b)}function g(a,b){for(var d in a){var e=a[d];if(!f(e,"-")&&r[e]!==c)return"pfx"==b?e:!0}return!1}function h(a,b,d){for(var f in a){var g=b[a[f]];if(g!==c)return d===!1?a[f]:e(g,"function")?g.bind(d||b):g}return!1}function i(a,b,c){var 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