jqrotate.js
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layui.define("jquery", function (exports) {
var jQuery = layui.jquery,
$ = layui.jquery;
// VERSION: 2.3 LAST UPDATE: 11.07.2013
/*
* 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://jqueryrotate.com
*/
(function ($) {
var supportedCSS, supportedCSSOrigin, 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]; }
if (supportedCSS) {
supportedCSSOrigin = supportedCSS.replace(/[tT]ransform/, "TransformOrigin");
if (supportedCSSOrigin[0] == "T") supportedCSSOrigin[0] = "t";
}
// Bad eval to preven google closure to remove it from code o_O
eval('IE = "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 = [0];
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) {
this._img = img;
this._onLoadDelegate = [parameters];
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();
} else {
var self = this;
// TODO: Remove jQuery dependency
jQuery(this._img).bind("load", function () { self._Loader(); });
}
}
}
})();
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 || this._defaultEasing;
this._parameters.duration = 'duration' in parameters ? parameters.duration : parameters.duration || this._parameters.duration || 1000;
this._parameters.callback = parameters.callback || this._parameters.callback || this._emptyFunction;
this._parameters.center = parameters.center || this._parameters.center || ["50%", "50%"];
if (typeof this._parameters.center[0] == "string") {
this._rotationCenterX = (parseInt(this._parameters.center[0], 10) / 100) * this._imgWidth * this._aspectW;
} else {
this._rotationCenterX = this._parameters.center[0];
}
if (typeof this._parameters.center[1] == "string") {
this._rotationCenterY = (parseInt(this._parameters.center[1], 10) / 100) * this._imgHeight * this._aspectH;
} else {
this._rotationCenterY = this._parameters.center[1];
}
if (parameters.bind && parameters.bind != this._parameters.bind) { this._BindEvents(parameters.bind); }
},
_emptyFunction: function () { },
_defaultEasing: function (x, t, b, c, d) { return -c * ((t = t / d - 1) * t * t * t - 1) + b },
_handleRotation: function (parameters, dontcheck) {
if (!supportedCSS && !this._img.complete && !dontcheck) {
this._onLoadDelegate.push(parameters);
return;
}
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 () {
var width = this._img.width;
var height = this._img.height;
this._imgWidth = width;
this._imgHeight = 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";
this._aspectW = this._aspectH = 1;
/* 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.style.top = "0px";
this._container.style.left = "0px";
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;
var parameters;
while (parameters = this._onLoadDelegate.shift()) {
this._handleRotation(parameters, true);
}
}
else return function () {
this._rootObj.setAttribute('id', this._img.getAttribute('id'));
this._rootObj.className = this._img.className;
this._imgWidth = this._img.naturalWidth;
this._imgHeight = this._img.naturalHeight;
var _widthMax = Math.sqrt((this._imgHeight) * (this._imgHeight) + (this._imgWidth) * (this._imgWidth));
this._width = _widthMax * 3;
this._height = _widthMax * 3;
this._aspectW = this._img.offsetWidth / this._img.naturalWidth;
this._aspectH = this._img.offsetHeight / this._img.naturalHeight;
this._img.parentNode.removeChild(this._img);
this._canvas = document.createElement('canvas');
this._canvas.setAttribute('width', this._width);
this._canvas.style.position = "relative";
this._canvas.style.left = -this._img.height * this._aspectW + "px";
this._canvas.style.top = -this._img.width * this._aspectH + "px";
this._canvas.Wilq32 = this._rootObj.Wilq32;
this._rootObj.appendChild(this._canvas);
this._rootObj.style.width = this._img.width * this._aspectW + "px";
this._rootObj.style.height = this._img.height * this._aspectH + "px";
this._eventObj = this._canvas;
this._cnv = this._canvas.getContext('2d');
var parameters;
while (parameters = this._onLoadDelegate.shift()) {
this._handleRotation(parameters, true);
}
}
})(),
_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";
this._vimage.style.top = -(this._rotationCenterY - this._imgHeight / 2) + "px";
this._vimage.style.left = -(this._rotationCenterX - this._imgWidth / 2) + "px";
this._container.style.top = this._rotationCenterY - this._imgHeight / 2 + "px";
this._container.style.left = this._rotationCenterX - this._imgWidth / 2 + "px";
}
else if (supportedCSS)
return function (angle) {
this._angle = angle;
this._img.style[supportedCSS] = "rotate(" + (angle % 360) + "deg)";
this._img.style[supportedCSSOrigin] = this._parameters.center.join(" ");
}
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._imgWidth * this._aspectW, this._imgHeight * this._aspectH); // at least center image on screen
this._cnv.translate(this._rotationCenterX, this._rotationCenterY); // we move image back to its orginal
this._cnv.rotate(angle); // rotate image
this._cnv.translate(-this._rotationCenterX, -this._rotationCenterY); // 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);
exports('jqrotate');
});