MediaWiki:Gadget-jquery.rotate.js
Note: After publishing, you may have to bypass your browser's cache to see the changes.
- Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
- Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
- Internet Explorer / Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5
- Opera: Press Ctrl-F5.
/**
* jQuery rotate plugIn. Allows rotating images using JavaScript
* <nowiki>
* Invoke automated jsHint-validation on save: A feature on WikimediaCommons
* Interested? See [[:commons:MediaWiki:JSValidator.js]], [[:commons:Help:JSValidator.js]].
*
**/
/*global jQuery:false, $:false, Wilq32:true */
// Following taken from jQueryRotate.2.2.js; with some minor modifications (see START MODIFICATION) for integration
// VERSION: 2.2 LAST UPDATE: 13.03.2012
/*
* Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php
*
* Made by Wilq32, wilq32@gmail.com, Wroclaw, Poland, 01.2009
* Website: http://code.google.com/p/jqueryrotate/
*/
// Documentation removed from script file (was kinda useless and outdated)
(function ($) {
/*jshint curly:false, eqeqeq:false, strict:false, asi:true, bitwise:false*/
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 - changed not in code anymore
// After compresion replace it back to var IE = 'v' == '\v'
var IE = "v" == "\v";
jQuery.fn.extend({
rotate: function (parameters) {
// These lines were modified. Re-include them when updating this plugIn
// START MODIFICATION
if (parameters && parameters.getSupportCSS) {
return supportedCSS;
}
// END MODIFICATION
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).on("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) {
var evt;
if (events && this._eventObj) {
// Unbinding previous Events
if (this._parameters.bind) {
var oldEvents = this._parameters.bind;
for (evt in oldEvents)
if (oldEvents.hasOwnProperty(evt))
// TODO: Remove jQuery dependency
jQuery(this._eventObj).off(evt, oldEvents[evt]);
}
this._parameters.bind = events;
for (evt in events)
if (events.hasOwnProperty(evt))
// TODO: Remove jQuery dependency
jQuery(this._eventObj).on(evt, events[evt]);
}
},
_Loader: (function () {
if (IE) {
return function (parameters) {
var t = this;
var width = t._img.width;
var height = t._img.height;
t._img.parentNode.removeChild(t._img);
t._vimage = t.createVMLNode('image');
t._vimage.src = t._img.src;
t._vimage.style.height = height + "px";
t._vimage.style.width = width + "px";
t._vimage.style.position = "absolute"; // FIXES IE PROBLEM - its only rendered if its on absolute position!
t._vimage.style.top = "0px";
t._vimage.style.left = "0px";
/* Group minifying a small 1px precision problem when rotating object */
t._container = t.createVMLNode('group');
t._container.style.width = width;
t._container.style.height = height;
t._container.style.position = "absolute";
t._container.setAttribute('coordsize', width - 1 + ',' + (height - 1)); // This -1, -1 trying to fix ugly problem with small displacement on IE
t._container.appendChild(t._vimage);
t._rootObj.appendChild(t._container);
t._rootObj.style.position = "relative"; // FIXES IE PROBLEM
t._rootObj.style.width = width + "px";
t._rootObj.style.height = height + "px";
t._rootObj.setAttribute('id', t._img.getAttribute('id'));
t._rootObj.className = t._img.className;
t._eventObj = t._rootObj;
t._handleRotation(parameters);
}
} else {
return function (parameters) {
var t = this;
t._rootObj.setAttribute('id', t._img.getAttribute('id'));
t._rootObj.className = t._img.className;
t._width = t._img.width;
t._height = t._img.height;
t._widthHalf = t._width / 2; // used for optimisation
t._heightHalf = t._height / 2; // used for optimisation
var _widthMax = Math.sqrt((t._height) * (t._height) + (t._width) * (t._width));
t._widthAdd = _widthMax - t._width;
t._heightAdd = _widthMax - t._height; // widthMax because maxWidth=maxHeight
t._widthAddHalf = t._widthAdd / 2; // used for optimisation
t._heightAddHalf = t._heightAdd / 2; // used for optimisation
t._img.parentNode.removeChild(t._img);
t._aspectW = ((parseInt(t._img.style.width, 10)) || t._width) / t._img.width;
t._aspectH = ((parseInt(t._img.style.height, 10)) || t._height) / t._img.height;
t._canvas = document.createElement('canvas');
t._canvas.setAttribute('width', t._width);
t._canvas.style.position = "relative";
t._canvas.style.left = -t._widthAddHalf + "px";
t._canvas.style.top = -t._heightAddHalf + "px";
t._canvas.Wilq32 = t._rootObj.Wilq32;
t._rootObj.appendChild(t._canvas);
t._rootObj.style.width = t._width + "px";
t._rootObj.style.height = t._height + "px";
t._eventObj = t._canvas;
t._cnv = t._canvas.getContext('2d');
t._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 {
if (!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">');
};
}
})();
}
$(document).triggerHandler('plugInLoaded', ['rotate', '2.2', 'MIT']);
})(jQuery);