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- // VERSION: 2.2 LAST UPDATE: 13.03.2012
- /*
- * Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
- *
- * Made by Wilq32, wilq32@gmail.com, Wroclaw, Poland, 01.2009
- * Website: http://code.google.com/p/jqueryrotate/
- */
- // Documentation removed from script file (was kinda useless and outdated)
- (function($) {
- var supportedCSS,styles=document.getElementsByTagName("head")[0].style,toCheck="transformProperty WebkitTransform OTransform msTransform MozTransform".split(" ");
- for (var a=0;a<toCheck.length;a++) if (styles[toCheck[a]] !== undefined) supportedCSS = toCheck[a];
- // Bad eval to preven google closure to remove it from code o_O
- // After compresion replace it back to var IE = 'v' == '\v'
- var IE = eval('"v"=="\v"');
- jQuery.fn.extend({
- rotate:function(parameters)
- {
- if (this.length===0||typeof parameters=="undefined") return;
- if (typeof parameters=="number") parameters={angle:parameters};
- var returned=[];
- for (var i=0,i0=this.length;i<i0;i++)
- {
- var element=this.get(i);
- if (!element.Wilq32 || !element.Wilq32.PhotoEffect) {
- var paramClone = $.extend(true, {}, parameters);
- var newRotObject = new Wilq32.PhotoEffect(element,paramClone)._rootObj;
- returned.push($(newRotObject));
- }
- else {
- element.Wilq32.PhotoEffect._handleRotation(parameters);
- }
- }
- return returned;
- },
- getRotateAngle: function(){
- var ret = [];
- for (var i=0,i0=this.length;i<i0;i++)
- {
- var element=this.get(i);
- if (element.Wilq32 && element.Wilq32.PhotoEffect) {
- ret[i] = element.Wilq32.PhotoEffect._angle;
- }
- }
- return ret;
- },
- stopRotate: function(){
- for (var i=0,i0=this.length;i<i0;i++)
- {
- var element=this.get(i);
- if (element.Wilq32 && element.Wilq32.PhotoEffect) {
- clearTimeout(element.Wilq32.PhotoEffect._timer);
- }
- }
- }
- });
- // Library agnostic interface
- Wilq32=window.Wilq32||{};
- Wilq32.PhotoEffect=(function(){
- if (supportedCSS) {
- return function(img,parameters){
- img.Wilq32 = {
- PhotoEffect: this
- };
-
- this._img = this._rootObj = this._eventObj = img;
- this._handleRotation(parameters);
- }
- } else {
- return function(img,parameters) {
- // Make sure that class and id are also copied - just in case you would like to refeer to an newly created object
- this._img = img;
- this._rootObj=document.createElement('span');
- this._rootObj.style.display="inline-block";
- this._rootObj.Wilq32 =
- {
- PhotoEffect: this
- };
- img.parentNode.insertBefore(this._rootObj,img);
-
- if (img.complete) {
- this._Loader(parameters);
- } else {
- var self=this;
- // TODO: Remove jQuery dependency
- jQuery(this._img).bind("load", function()
- {
- self._Loader(parameters);
- });
- }
- }
- }
- })();
- Wilq32.PhotoEffect.prototype={
- _setupParameters : function (parameters){
- this._parameters = this._parameters || {};
- if (typeof this._angle !== "number") this._angle = 0 ;
- if (typeof parameters.angle==="number") this._angle = parameters.angle;
- this._parameters.animateTo = (typeof parameters.animateTo==="number") ? (parameters.animateTo) : (this._angle);
- this._parameters.step = parameters.step || this._parameters.step || null;
- 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; }
- this._parameters.duration = parameters.duration || this._parameters.duration || 1000;
- this._parameters.callback = parameters.callback || this._parameters.callback || function(){};
- if (parameters.bind && parameters.bind != this._parameters.bind) this._BindEvents(parameters.bind);
- },
- _handleRotation : function(parameters){
- this._setupParameters(parameters);
- if (this._angle==this._parameters.animateTo) {
- this._rotate(this._angle);
- }
- else {
- this._animateStart();
- }
- },
- _BindEvents:function(events){
- if (events && this._eventObj)
- {
- // Unbinding previous Events
- if (this._parameters.bind){
- var oldEvents = this._parameters.bind;
- for (var a in oldEvents) if (oldEvents.hasOwnProperty(a))
- // TODO: Remove jQuery dependency
- jQuery(this._eventObj).unbind(a,oldEvents[a]);
- }
- this._parameters.bind = events;
- for (var a in events) if (events.hasOwnProperty(a))
- // TODO: Remove jQuery dependency
- jQuery(this._eventObj).bind(a,events[a]);
- }
- },
- _Loader:(function()
- {
- if (IE)
- return function(parameters)
- {
- var width=this._img.width;
- var height=this._img.height;
- this._img.parentNode.removeChild(this._img);
-
- this._vimage = this.createVMLNode('image');
- this._vimage.src=this._img.src;
- this._vimage.style.height=height+"px";
- this._vimage.style.width=width+"px";
- this._vimage.style.position="absolute"; // FIXES IE PROBLEM - its only rendered if its on absolute position!
- this._vimage.style.top = "0px";
- this._vimage.style.left = "0px";
- /* Group minifying a small 1px precision problem when rotating object */
- this._container = this.createVMLNode('group');
- this._container.style.width=width;
- this._container.style.height=height;
- this._container.style.position="absolute";
- this._container.setAttribute('coordsize',width-1+','+(height-1)); // This -1, -1 trying to fix ugly problem with small displacement on IE
- this._container.appendChild(this._vimage);
-
- this._rootObj.appendChild(this._container);
- this._rootObj.style.position="relative"; // FIXES IE PROBLEM
- this._rootObj.style.width=width+"px";
- this._rootObj.style.height=height+"px";
- this._rootObj.setAttribute('id',this._img.getAttribute('id'));
- this._rootObj.className=this._img.className;
- this._eventObj = this._rootObj;
- this._handleRotation(parameters);
- }
- else
- return function (parameters)
- {
- this._rootObj.setAttribute('id',this._img.getAttribute('id'));
- this._rootObj.className=this._img.className;
-
- this._width=this._img.width;
- this._height=this._img.height;
- this._widthHalf=this._width/2; // used for optimisation
- this._heightHalf=this._height/2;// used for optimisation
-
- var _widthMax=Math.sqrt((this._height)*(this._height) + (this._width) * (this._width));
- this._widthAdd = _widthMax - this._width;
- this._heightAdd = _widthMax - this._height; // widthMax because maxWidth=maxHeight
- this._widthAddHalf=this._widthAdd/2; // used for optimisation
- this._heightAddHalf=this._heightAdd/2;// used for optimisation
-
- this._img.parentNode.removeChild(this._img);
-
- this._aspectW = ((parseInt(this._img.style.width,10)) || this._width)/this._img.width;
- this._aspectH = ((parseInt(this._img.style.height,10)) || this._height)/this._img.height;
-
- this._canvas=document.createElement('canvas');
- this._canvas.setAttribute('width',this._width);
- this._canvas.style.position="relative";
- this._canvas.style.left = -this._widthAddHalf + "px";
- this._canvas.style.top = -this._heightAddHalf + "px";
- this._canvas.Wilq32 = this._rootObj.Wilq32;
-
- this._rootObj.appendChild(this._canvas);
- this._rootObj.style.width=this._width+"px";
- this._rootObj.style.height=this._height+"px";
- this._eventObj = this._canvas;
-
- this._cnv=this._canvas.getContext('2d');
- this._handleRotation(parameters);
- }
- })(),
- _animateStart:function()
- {
- if (this._timer) {
- clearTimeout(this._timer);
- }
- this._animateStartTime = +new Date;
- this._animateStartAngle = this._angle;
- this._animate();
- },
- _animate:function()
- {
- var actualTime = +new Date;
- var checkEnd = actualTime - this._animateStartTime > this._parameters.duration;
- // TODO: Bug for animatedGif for static rotation ? (to test)
- if (checkEnd && !this._parameters.animatedGif)
- {
- clearTimeout(this._timer);
- }
- else
- {
- if (this._canvas||this._vimage||this._img) {
- var angle = this._parameters.easing(0, actualTime - this._animateStartTime, this._animateStartAngle, this._parameters.animateTo - this._animateStartAngle, this._parameters.duration);
- this._rotate((~~(angle*10))/10);
- }
- if (this._parameters.step) {
- this._parameters.step(this._angle);
- }
- var self = this;
- this._timer = setTimeout(function()
- {
- self._animate.call(self);
- }, 10);
- }
- // To fix Bug that prevents using recursive function in callback I moved this function to back
- if (this._parameters.callback && checkEnd){
- this._angle = this._parameters.animateTo;
- this._rotate(this._angle);
- this._parameters.callback.call(this._rootObj);
- }
- },
- _rotate : (function()
- {
- var rad = Math.PI/180;
- if (IE)
- return function(angle)
- {
- this._angle = angle;
- this._container.style.rotation=(angle%360)+"deg";
- }
- else if (supportedCSS)
- return function(angle){
- this._angle = angle;
- this._img.style[supportedCSS]="rotate("+(angle%360)+"deg)";
- }
- else
- return function(angle)
- {
- this._angle = angle;
- angle=(angle%360)* rad;
- // clear canvas
- this._canvas.width = this._width+this._widthAdd;
- this._canvas.height = this._height+this._heightAdd;
-
- // REMEMBER: all drawings are read from backwards.. so first function is translate, then rotate, then translate, translate..
- this._cnv.translate(this._widthAddHalf,this._heightAddHalf); // at least center image on screen
- this._cnv.translate(this._widthHalf,this._heightHalf); // we move image back to its orginal
- this._cnv.rotate(angle); // rotate image
- this._cnv.translate(-this._widthHalf,-this._heightHalf); // move image to its center, so we can rotate around its center
- this._cnv.scale(this._aspectW,this._aspectH); // SCALE - if needed ;)
- this._cnv.drawImage(this._img, 0, 0); // First - we draw image
- }
- })()
- }
- if (IE)
- {
- Wilq32.PhotoEffect.prototype.createVMLNode=(function(){
- document.createStyleSheet().addRule(".rvml", "behavior:url(#default#VML)");
- try {
- !document.namespaces.rvml && document.namespaces.add("rvml", "urn:schemas-microsoft-com:vml");
- return function (tagName) {
- return document.createElement('<rvml:' + tagName + ' class="rvml">');
- };
- } catch (e) {
- return function (tagName) {
- return document.createElement('<' + tagName + ' xmlns="urn:schemas-microsoft.com:vml" class="rvml">');
- };
- }
- })();
- }
- })(jQuery);
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