html，js，jq转盘抽奖
直接粘贴代码
幸运大转盘
rotate.js（粘贴别人的）
(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('');
};
} catch(e) {
return function(tagName) {
return document.createElement('<' + tagName + ' xmlns="urn:schemas-microsoft.com:vml" class="rvml">');
};
}
})();
}
})(jQuery);