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public/static/theme/prize/awardRotate.js
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302
public/static/theme/prize/awardRotate.js
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(function($) {
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var supportedCSS,styles=document.getElementsByTagName("head")[0].style,toCheck="transformProperty WebkitTransform OTransform msTransform MozTransform".split(" ");
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for (var a=0;a<toCheck.length;a++) if (styles[toCheck[a]] !== undefined) supportedCSS = toCheck[a];
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// Bad eval to preven google closure to remove it from code o_O
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// After compresion replace it back to var IE = 'v' == '\v'
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var IE = eval('"v"=="\v"');
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jQuery.fn.extend({
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rotate:function(parameters)
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{
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if (this.length===0||typeof parameters=="undefined") return;
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if (typeof parameters=="number") parameters={angle:parameters};
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var returned=[];
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for (var i=0,i0=this.length;i<i0;i++)
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{
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var element=this.get(i);
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if (!element.Wilq32 || !element.Wilq32.PhotoEffect) {
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var paramClone = $.extend(true, {}, parameters);
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var newRotObject = new Wilq32.PhotoEffect(element,paramClone)._rootObj;
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returned.push($(newRotObject));
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}
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else {
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element.Wilq32.PhotoEffect._handleRotation(parameters);
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}
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}
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return returned;
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},
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getRotateAngle: function(){
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var ret = [];
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for (var i=0,i0=this.length;i<i0;i++)
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{
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var element=this.get(i);
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if (element.Wilq32 && element.Wilq32.PhotoEffect) {
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ret[i] = element.Wilq32.PhotoEffect._angle;
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}
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}
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return ret;
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},
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stopRotate: function(){
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for (var i=0,i0=this.length;i<i0;i++)
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{
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var element=this.get(i);
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if (element.Wilq32 && element.Wilq32.PhotoEffect) {
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clearTimeout(element.Wilq32.PhotoEffect._timer);
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}
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}
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}
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});
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// Library agnostic interface
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Wilq32=window.Wilq32||{};
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Wilq32.PhotoEffect=(function(){
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if (supportedCSS) {
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return function(img,parameters){
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img.Wilq32 = {
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PhotoEffect: this
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};
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this._img = this._rootObj = this._eventObj = img;
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this._handleRotation(parameters);
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}
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} else {
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return function(img,parameters) {
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// Make sure that class and id are also copied - just in case you would like to refeer to an newly created object
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this._img = img;
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this._rootObj=document.createElement('span');
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this._rootObj.style.display="inline-block";
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this._rootObj.Wilq32 =
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{
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PhotoEffect: this
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};
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img.parentNode.insertBefore(this._rootObj,img);
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if (img.complete) {
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this._Loader(parameters);
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} else {
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var self=this;
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// TODO: Remove jQuery dependency
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jQuery(this._img).bind("load", function()
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{
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self._Loader(parameters);
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});
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}
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}
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}
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})();
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Wilq32.PhotoEffect.prototype={
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_setupParameters : function (parameters){
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this._parameters = this._parameters || {};
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if (typeof this._angle !== "number") this._angle = 0 ;
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if (typeof parameters.angle==="number") this._angle = parameters.angle;
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this._parameters.animateTo = (typeof parameters.animateTo==="number") ? (parameters.animateTo) : (this._angle);
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this._parameters.step = parameters.step || this._parameters.step || null;
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this._parameters.easing = parameters.easing || this._parameters.easing || function (x, t, b, c, d) { return -c * ((t=t/d-1)*t*t*t - 1) + b; }
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this._parameters.duration = parameters.duration || this._parameters.duration || 1000;
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this._parameters.callback = parameters.callback || this._parameters.callback || function(){};
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if (parameters.bind && parameters.bind != this._parameters.bind) this._BindEvents(parameters.bind);
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},
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_handleRotation : function(parameters){
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this._setupParameters(parameters);
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if (this._angle==this._parameters.animateTo) {
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this._rotate(this._angle);
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}
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else {
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this._animateStart();
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}
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},
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_BindEvents:function(events){
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if (events && this._eventObj)
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{
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// Unbinding previous Events
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if (this._parameters.bind){
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var oldEvents = this._parameters.bind;
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for (var a in oldEvents) if (oldEvents.hasOwnProperty(a))
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// TODO: Remove jQuery dependency
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jQuery(this._eventObj).unbind(a,oldEvents[a]);
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}
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this._parameters.bind = events;
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for (var a in events) if (events.hasOwnProperty(a))
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// TODO: Remove jQuery dependency
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jQuery(this._eventObj).bind(a,events[a]);
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}
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},
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_Loader:(function()
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{
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if (IE)
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return function(parameters)
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{
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var width=this._img.width;
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var height=this._img.height;
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this._img.parentNode.removeChild(this._img);
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this._vimage = this.createVMLNode('image');
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this._vimage.src=this._img.src;
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this._vimage.style.height=height+"px";
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this._vimage.style.width=width+"px";
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this._vimage.style.position="absolute"; // FIXES IE PROBLEM - its only rendered if its on absolute position!
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this._vimage.style.top = "0px";
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this._vimage.style.left = "0px";
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/* Group minifying a small 1px precision problem when rotating object */
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this._container = this.createVMLNode('group');
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this._container.style.width=width;
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this._container.style.height=height;
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this._container.style.position="absolute";
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this._container.setAttribute('coordsize',width-1+','+(height-1)); // This -1, -1 trying to fix ugly problem with small displacement on IE
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this._container.appendChild(this._vimage);
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this._rootObj.appendChild(this._container);
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this._rootObj.style.position="relative"; // FIXES IE PROBLEM
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this._rootObj.style.width=width+"px";
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this._rootObj.style.height=height+"px";
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this._rootObj.setAttribute('id',this._img.getAttribute('id'));
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this._rootObj.className=this._img.className;
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this._eventObj = this._rootObj;
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this._handleRotation(parameters);
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}
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else
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return function (parameters)
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{
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this._rootObj.setAttribute('id',this._img.getAttribute('id'));
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this._rootObj.className=this._img.className;
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this._width=this._img.width;
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this._height=this._img.height;
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this._widthHalf=this._width/2; // used for optimisation
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this._heightHalf=this._height/2;// used for optimisation
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var _widthMax=Math.sqrt((this._height)*(this._height) + (this._width) * (this._width));
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this._widthAdd = _widthMax - this._width;
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this._heightAdd = _widthMax - this._height; // widthMax because maxWidth=maxHeight
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this._widthAddHalf=this._widthAdd/2; // used for optimisation
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this._heightAddHalf=this._heightAdd/2;// used for optimisation
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this._img.parentNode.removeChild(this._img);
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this._aspectW = ((parseInt(this._img.style.width,10)) || this._width)/this._img.width;
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this._aspectH = ((parseInt(this._img.style.height,10)) || this._height)/this._img.height;
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this._canvas=document.createElement('canvas');
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this._canvas.setAttribute('width',this._width);
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this._canvas.style.position="relative";
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this._canvas.style.left = -this._widthAddHalf + "px";
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this._canvas.style.top = -this._heightAddHalf + "px";
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this._canvas.Wilq32 = this._rootObj.Wilq32;
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this._rootObj.appendChild(this._canvas);
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this._rootObj.style.width=this._width+"px";
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this._rootObj.style.height=this._height+"px";
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this._eventObj = this._canvas;
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this._cnv=this._canvas.getContext('2d');
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this._handleRotation(parameters);
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}
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})(),
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_animateStart:function()
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{
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if (this._timer) {
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clearTimeout(this._timer);
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}
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this._animateStartTime = +new Date;
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this._animateStartAngle = this._angle;
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this._animate();
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},
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_animate:function()
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{
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var actualTime = +new Date;
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var checkEnd = actualTime - this._animateStartTime > this._parameters.duration;
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// TODO: Bug for animatedGif for static rotation ? (to test)
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if (checkEnd && !this._parameters.animatedGif)
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{
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clearTimeout(this._timer);
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}
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else
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{
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if (this._canvas||this._vimage||this._img) {
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var angle = this._parameters.easing(0, actualTime - this._animateStartTime, this._animateStartAngle, this._parameters.animateTo - this._animateStartAngle, this._parameters.duration);
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this._rotate((~~(angle*10))/10);
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}
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if (this._parameters.step) {
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this._parameters.step(this._angle);
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}
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var self = this;
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this._timer = setTimeout(function()
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{
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self._animate.call(self);
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}, 10);
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}
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// To fix Bug that prevents using recursive function in callback I moved this function to back
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if (this._parameters.callback && checkEnd){
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this._angle = this._parameters.animateTo;
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this._rotate(this._angle);
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this._parameters.callback.call(this._rootObj);
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}
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},
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_rotate : (function()
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{
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var rad = Math.PI/180;
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if (IE)
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return function(angle)
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{
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this._angle = angle;
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this._container.style.rotation=(angle%360)+"deg";
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}
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else if (supportedCSS)
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return function(angle){
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this._angle = angle;
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this._img.style[supportedCSS]="rotate("+(angle%360)+"deg)";
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}
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else
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return function(angle)
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{
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this._angle = angle;
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angle=(angle%360)* rad;
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// clear canvas
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this._canvas.width = this._width+this._widthAdd;
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this._canvas.height = this._height+this._heightAdd;
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// REMEMBER: all drawings are read from backwards.. so first function is translate, then rotate, then translate, translate..
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this._cnv.translate(this._widthAddHalf,this._heightAddHalf); // at least center image on screen
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this._cnv.translate(this._widthHalf,this._heightHalf); // we move image back to its orginal
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this._cnv.rotate(angle); // rotate image
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this._cnv.translate(-this._widthHalf,-this._heightHalf); // move image to its center, so we can rotate around its center
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this._cnv.scale(this._aspectW,this._aspectH); // SCALE - if needed ;)
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this._cnv.drawImage(this._img, 0, 0); // First - we draw image
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}
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})()
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}
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if (IE)
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{
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Wilq32.PhotoEffect.prototype.createVMLNode=(function(){
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document.createStyleSheet().addRule(".rvml", "behavior:url(#default#VML)");
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try {
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!document.namespaces.rvml && document.namespaces.add("rvml", "urn:schemas-microsoft-com:vml");
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return function (tagName) {
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return document.createElement('<rvml:' + tagName + ' class="rvml">');
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};
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} catch (e) {
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return function (tagName) {
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return document.createElement('<' + tagName + ' xmlns="urn:schemas-microsoft.com:vml" class="rvml">');
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};
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}
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})();
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}
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})(jQuery);
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