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+/*!
+ * jQuery Transit - CSS3 transitions and transformations
+ * (c) 2011-2012 Rico Sta. Cruz <rico@ricostacruz.com>
+ * MIT Licensed.
+ *
+ * http://ricostacruz.com/jquery.transit
+ * http://github.com/rstacruz/jquery.transit
+ */
+
+(function($) {
+ $.transit = {
+ version: "0.9.9",
+
+ // Map of $.css() keys to values for 'transitionProperty'.
+ // See https://developer.mozilla.org/en/CSS/CSS_transitions#Properties_that_can_be_animated
+ propertyMap: {
+ marginLeft : 'margin',
+ marginRight : 'margin',
+ marginBottom : 'margin',
+ marginTop : 'margin',
+ paddingLeft : 'padding',
+ paddingRight : 'padding',
+ paddingBottom : 'padding',
+ paddingTop : 'padding'
+ },
+
+ // Will simply transition "instantly" if false
+ enabled: true,
+
+ // Set this to false if you don't want to use the transition end property.
+ useTransitionEnd: false
+ };
+
+ var div = document.createElement('div');
+ var support = {};
+
+ // Helper function to get the proper vendor property name.
+ // (`transition` => `WebkitTransition`)
+ function getVendorPropertyName(prop) {
+ // Handle unprefixed versions (FF16+, for example)
+ if (prop in div.style) return prop;
+
+ var prefixes = ['Moz', 'Webkit', 'O', 'ms'];
+ var prop_ = prop.charAt(0).toUpperCase() + prop.substr(1);
+
+ if (prop in div.style) { return prop; }
+
+ for (var i=0; i<prefixes.length; ++i) {
+ var vendorProp = prefixes[i] + prop_;
+ if (vendorProp in div.style) { return vendorProp; }
+ }
+ }
+
+ // Helper function to check if transform3D is supported.
+ // Should return true for Webkits and Firefox 10+.
+ function checkTransform3dSupport() {
+ div.style[support.transform] = '';
+ div.style[support.transform] = 'rotateY(90deg)';
+ return div.style[support.transform] !== '';
+ }
+
+ var isChrome = navigator.userAgent.toLowerCase().indexOf('chrome') > -1;
+
+ // Check for the browser's transitions support.
+ support.transition = getVendorPropertyName('transition');
+ support.transitionDelay = getVendorPropertyName('transitionDelay');
+ support.transform = getVendorPropertyName('transform');
+ support.transformOrigin = getVendorPropertyName('transformOrigin');
+ support.transform3d = checkTransform3dSupport();
+
+ var eventNames = {
+ 'transition': 'transitionEnd',
+ 'MozTransition': 'transitionend',
+ 'OTransition': 'oTransitionEnd',
+ 'WebkitTransition': 'webkitTransitionEnd',
+ 'msTransition': 'MSTransitionEnd'
+ };
+
+ // Detect the 'transitionend' event needed.
+ var transitionEnd = support.transitionEnd = eventNames[support.transition] || null;
+
+ // Populate jQuery's `$.support` with the vendor prefixes we know.
+ // As per [jQuery's cssHooks documentation](http://api.jquery.com/jQuery.cssHooks/),
+ // we set $.support.transition to a string of the actual property name used.
+ for (var key in support) {
+ if (support.hasOwnProperty(key) && typeof $.support[key] === 'undefined') {
+ $.support[key] = support[key];
+ }
+ }
+
+ // Avoid memory leak in IE.
+ div = null;
+
+ // ## $.cssEase
+ // List of easing aliases that you can use with `$.fn.transition`.
+ $.cssEase = {
+ '_default': 'ease',
+ 'in': 'ease-in',
+ 'out': 'ease-out',
+ 'in-out': 'ease-in-out',
+ 'snap': 'cubic-bezier(0,1,.5,1)',
+ // Penner equations
+ 'easeOutCubic': 'cubic-bezier(.215,.61,.355,1)',
+ 'easeInOutCubic': 'cubic-bezier(.645,.045,.355,1)',
+ 'easeInCirc': 'cubic-bezier(.6,.04,.98,.335)',
+ 'easeOutCirc': 'cubic-bezier(.075,.82,.165,1)',
+ 'easeInOutCirc': 'cubic-bezier(.785,.135,.15,.86)',
+ 'easeInExpo': 'cubic-bezier(.95,.05,.795,.035)',
+ 'easeOutExpo': 'cubic-bezier(.19,1,.22,1)',
+ 'easeInOutExpo': 'cubic-bezier(1,0,0,1)',
+ 'easeInQuad': 'cubic-bezier(.55,.085,.68,.53)',
+ 'easeOutQuad': 'cubic-bezier(.25,.46,.45,.94)',
+ 'easeInOutQuad': 'cubic-bezier(.455,.03,.515,.955)',
+ 'easeInQuart': 'cubic-bezier(.895,.03,.685,.22)',
+ 'easeOutQuart': 'cubic-bezier(.165,.84,.44,1)',
+ 'easeInOutQuart': 'cubic-bezier(.77,0,.175,1)',
+ 'easeInQuint': 'cubic-bezier(.755,.05,.855,.06)',
+ 'easeOutQuint': 'cubic-bezier(.23,1,.32,1)',
+ 'easeInOutQuint': 'cubic-bezier(.86,0,.07,1)',
+ 'easeInSine': 'cubic-bezier(.47,0,.745,.715)',
+ 'easeOutSine': 'cubic-bezier(.39,.575,.565,1)',
+ 'easeInOutSine': 'cubic-bezier(.445,.05,.55,.95)',
+ 'easeInBack': 'cubic-bezier(.6,-.28,.735,.045)',
+ 'easeOutBack': 'cubic-bezier(.175, .885,.32,1.275)',
+ 'easeInOutBack': 'cubic-bezier(.68,-.55,.265,1.55)'
+ };
+
+ // ## 'transform' CSS hook
+ // Allows you to use the `transform` property in CSS.
+ //
+ // $("#hello").css({ transform: "rotate(90deg)" });
+ //
+ // $("#hello").css('transform');
+ // //=> { rotate: '90deg' }
+ //
+ $.cssHooks['transit:transform'] = {
+ // The getter returns a `Transform` object.
+ get: function(elem) {
+ return $(elem).data('transform') || new Transform();
+ },
+
+ // The setter accepts a `Transform` object or a string.
+ set: function(elem, v) {
+ var value = v;
+
+ if (!(value instanceof Transform)) {
+ value = new Transform(value);
+ }
+
+ // We've seen the 3D version of Scale() not work in Chrome when the
+ // element being scaled extends outside of the viewport. Thus, we're
+ // forcing Chrome to not use the 3d transforms as well. Not sure if
+ // translate is affectede, but not risking it. Detection code from
+ // http://davidwalsh.name/detecting-google-chrome-javascript
+ if (support.transform === 'WebkitTransform' && !isChrome) {
+ elem.style[support.transform] = value.toString(true);
+ } else {
+ elem.style[support.transform] = value.toString();
+ }
+
+ $(elem).data('transform', value);
+ }
+ };
+
+ // Add a CSS hook for `.css({ transform: '...' })`.
+ // In jQuery 1.8+, this will intentionally override the default `transform`
+ // CSS hook so it'll play well with Transit. (see issue #62)
+ $.cssHooks.transform = {
+ set: $.cssHooks['transit:transform'].set
+ };
+
+ // jQuery 1.8+ supports prefix-free transitions, so these polyfills will not
+ // be necessary.
+ if ($.fn.jquery < "1.8") {
+ // ## 'transformOrigin' CSS hook
+ // Allows the use for `transformOrigin` to define where scaling and rotation
+ // is pivoted.
+ //
+ // $("#hello").css({ transformOrigin: '0 0' });
+ //
+ $.cssHooks.transformOrigin = {
+ get: function(elem) {
+ return elem.style[support.transformOrigin];
+ },
+ set: function(elem, value) {
+ elem.style[support.transformOrigin] = value;
+ }
+ };
+
+ // ## 'transition' CSS hook
+ // Allows you to use the `transition` property in CSS.
+ //
+ // $("#hello").css({ transition: 'all 0 ease 0' });
+ //
+ $.cssHooks.transition = {
+ get: function(elem) {
+ return elem.style[support.transition];
+ },
+ set: function(elem, value) {
+ elem.style[support.transition] = value;
+ }
+ };
+ }
+
+ // ## Other CSS hooks
+ // Allows you to rotate, scale and translate.
+ registerCssHook('scale');
+ registerCssHook('translate');
+ registerCssHook('rotate');
+ registerCssHook('rotateX');
+ registerCssHook('rotateY');
+ registerCssHook('rotate3d');
+ registerCssHook('perspective');
+ registerCssHook('skewX');
+ registerCssHook('skewY');
+ registerCssHook('x', true);
+ registerCssHook('y', true);
+
+ // ## Transform class
+ // This is the main class of a transformation property that powers
+ // `$.fn.css({ transform: '...' })`.
+ //
+ // This is, in essence, a dictionary object with key/values as `-transform`
+ // properties.
+ //
+ // var t = new Transform("rotate(90) scale(4)");
+ //
+ // t.rotate //=> "90deg"
+ // t.scale //=> "4,4"
+ //
+ // Setters are accounted for.
+ //
+ // t.set('rotate', 4)
+ // t.rotate //=> "4deg"
+ //
+ // Convert it to a CSS string using the `toString()` and `toString(true)` (for WebKit)
+ // functions.
+ //
+ // t.toString() //=> "rotate(90deg) scale(4,4)"
+ // t.toString(true) //=> "rotate(90deg) scale3d(4,4,0)" (WebKit version)
+ //
+ function Transform(str) {
+ if (typeof str === 'string') { this.parse(str); }
+ return this;
+ }
+
+ Transform.prototype = {
+ // ### setFromString()
+ // Sets a property from a string.
+ //
+ // t.setFromString('scale', '2,4');
+ // // Same as set('scale', '2', '4');
+ //
+ setFromString: function(prop, val) {
+ var args =
+ (typeof val === 'string') ? val.split(',') :
+ (val.constructor === Array) ? val :
+ [ val ];
+
+ args.unshift(prop);
+
+ Transform.prototype.set.apply(this, args);
+ },
+
+ // ### set()
+ // Sets a property.
+ //
+ // t.set('scale', 2, 4);
+ //
+ set: function(prop) {
+ var args = Array.prototype.slice.apply(arguments, [1]);
+ if (this.setter[prop]) {
+ this.setter[prop].apply(this, args);
+ } else {
+ this[prop] = args.join(',');
+ }
+ },
+
+ get: function(prop) {
+ if (this.getter[prop]) {
+ return this.getter[prop].apply(this);
+ } else {
+ return this[prop] || 0;
+ }
+ },
+
+ setter: {
+ // ### rotate
+ //
+ // .css({ rotate: 30 })
+ // .css({ rotate: "30" })
+ // .css({ rotate: "30deg" })
+ // .css({ rotate: "30deg" })
+ //
+ rotate: function(theta) {
+ this.rotate = unit(theta, 'deg');
+ },
+
+ rotateX: function(theta) {
+ this.rotateX = unit(theta, 'deg');
+ },
+
+ rotateY: function(theta) {
+ this.rotateY = unit(theta, 'deg');
+ },
+
+ // ### scale
+ //
+ // .css({ scale: 9 }) //=> "scale(9,9)"
+ // .css({ scale: '3,2' }) //=> "scale(3,2)"
+ //
+ scale: function(x, y) {
+ if (y === undefined) { y = x; }
+ this.scale = x + "," + y;
+ },
+
+ // ### skewX + skewY
+ skewX: function(x) {
+ this.skewX = unit(x, 'deg');
+ },
+
+ skewY: function(y) {
+ this.skewY = unit(y, 'deg');
+ },
+
+ // ### perspectvie
+ perspective: function(dist) {
+ this.perspective = unit(dist, 'px');
+ },
+
+ // ### x / y
+ // Translations. Notice how this keeps the other value.
+ //
+ // .css({ x: 4 }) //=> "translate(4px, 0)"
+ // .css({ y: 10 }) //=> "translate(4px, 10px)"
+ //
+ x: function(x) {
+ this.set('translate', x, null);
+ },
+
+ y: function(y) {
+ this.set('translate', null, y);
+ },
+
+ // ### translate
+ // Notice how this keeps the other value.
+ //
+ // .css({ translate: '2, 5' }) //=> "translate(2px, 5px)"
+ //
+ translate: function(x, y) {
+ if (this._translateX === undefined) { this._translateX = 0; }
+ if (this._translateY === undefined) { this._translateY = 0; }
+
+ if (x !== null && x !== undefined) { this._translateX = unit(x, 'px'); }
+ if (y !== null && y !== undefined) { this._translateY = unit(y, 'px'); }
+
+ this.translate = this._translateX + "," + this._translateY;
+ }
+ },
+
+ getter: {
+ x: function() {
+ return this._translateX || 0;
+ },
+
+ y: function() {
+ return this._translateY || 0;
+ },
+
+ scale: function() {
+ var s = (this.scale || "1,1").split(',');
+ if (s[0]) { s[0] = parseFloat(s[0]); }
+ if (s[1]) { s[1] = parseFloat(s[1]); }
+
+ // "2.5,2.5" => 2.5
+ // "2.5,1" => [2.5,1]
+ return (s[0] === s[1]) ? s[0] : s;
+ },
+
+ rotate3d: function() {
+ var s = (this.rotate3d || "0,0,0,0deg").split(',');
+ for (var i=0; i<=3; ++i) {
+ if (s[i]) { s[i] = parseFloat(s[i]); }
+ }
+ if (s[3]) { s[3] = unit(s[3], 'deg'); }
+
+ return s;
+ }
+ },
+
+ // ### parse()
+ // Parses from a string. Called on constructor.
+ parse: function(str) {
+ var self = this;
+ str.replace(/([a-zA-Z0-9]+)\((.*?)\)/g, function(x, prop, val) {
+ self.setFromString(prop, val);
+ });
+ },
+
+ // ### toString()
+ // Converts to a `transition` CSS property string. If `use3d` is given,
+ // it converts to a `-webkit-transition` CSS property string instead.
+ toString: function(use3d) {
+ var re = [];
+
+ for (var i in this) {
+ if (this.hasOwnProperty(i)) {
+ // Don't use 3D transformations if the browser can't support it.
+ if ((!support.transform3d) && (
+ (i === 'rotateX') ||
+ (i === 'rotateY') ||
+ (i === 'perspective') ||
+ (i === 'transformOrigin'))) { continue; }
+
+ if (i[0] !== '_') {
+ if (use3d && (i === 'scale')) {
+ re.push(i + "3d(" + this[i] + ",1)");
+ } else if (use3d && (i === 'translate')) {
+ re.push(i + "3d(" + this[i] + ",0)");
+ } else {
+ re.push(i + "(" + this[i] + ")");
+ }
+ }
+ }
+ }
+
+ return re.join(" ");
+ }
+ };
+
+ function callOrQueue(self, queue, fn) {
+ if (queue === true) {
+ self.queue(fn);
+ } else if (queue) {
+ self.queue(queue, fn);
+ } else {
+ fn();
+ }
+ }
+
+ // ### getProperties(dict)
+ // Returns properties (for `transition-property`) for dictionary `props`. The
+ // value of `props` is what you would expect in `$.css(...)`.
+ function getProperties(props) {
+ var re = [];
+
+ $.each(props, function(key) {
+ key = $.camelCase(key); // Convert "text-align" => "textAlign"
+ key = $.transit.propertyMap[key] || $.cssProps[key] || key;
+ key = uncamel(key); // Convert back to dasherized
+
+ if ($.inArray(key, re) === -1) { re.push(key); }
+ });
+
+ return re;
+ }
+
+ // ### getTransition()
+ // Returns the transition string to be used for the `transition` CSS property.
+ //
+ // Example:
+ //
+ // getTransition({ opacity: 1, rotate: 30 }, 500, 'ease');
+ // //=> 'opacity 500ms ease, -webkit-transform 500ms ease'
+ //
+ function getTransition(properties, duration, easing, delay) {
+ // Get the CSS properties needed.
+ var props = getProperties(properties);
+
+ // Account for aliases (`in` => `ease-in`).
+ if ($.cssEase[easing]) { easing = $.cssEase[easing]; }
+
+ // Build the duration/easing/delay attributes for it.
+ var attribs = '' + toMS(duration) + ' ' + easing;
+ if (parseInt(delay, 10) > 0) { attribs += ' ' + toMS(delay); }
+
+ // For more properties, add them this way:
+ // "margin 200ms ease, padding 200ms ease, ..."
+ var transitions = [];
+ $.each(props, function(i, name) {
+ transitions.push(name + ' ' + attribs);
+ });
+
+ return transitions.join(', ');
+ }
+
+ // ## $.fn.transition
+ // Works like $.fn.animate(), but uses CSS transitions.
+ //
+ // $("...").transition({ opacity: 0.1, scale: 0.3 });
+ //
+ // // Specific duration
+ // $("...").transition({ opacity: 0.1, scale: 0.3 }, 500);
+ //
+ // // With duration and easing
+ // $("...").transition({ opacity: 0.1, scale: 0.3 }, 500, 'in');
+ //
+ // // With callback
+ // $("...").transition({ opacity: 0.1, scale: 0.3 }, function() { ... });
+ //
+ // // With everything
+ // $("...").transition({ opacity: 0.1, scale: 0.3 }, 500, 'in', function() { ... });
+ //
+ // // Alternate syntax
+ // $("...").transition({
+ // opacity: 0.1,
+ // duration: 200,
+ // delay: 40,
+ // easing: 'in',
+ // complete: function() { /* ... */ }
+ // });
+ //
+ $.fn.transition = $.fn.transit = function(properties, duration, easing, callback) {
+ var self = this;
+ var delay = 0;
+ var queue = true;
+
+ // Account for `.transition(properties, callback)`.
+ if (typeof duration === 'function') {
+ callback = duration;
+ duration = undefined;
+ }
+
+ // Account for `.transition(properties, duration, callback)`.
+ if (typeof easing === 'function') {
+ callback = easing;
+ easing = undefined;
+ }
+
+ // Alternate syntax.
+ if (typeof properties.easing !== 'undefined') {
+ easing = properties.easing;
+ delete properties.easing;
+ }
+
+ if (typeof properties.duration !== 'undefined') {
+ duration = properties.duration;
+ delete properties.duration;
+ }
+
+ if (typeof properties.complete !== 'undefined') {
+ callback = properties.complete;
+ delete properties.complete;
+ }
+
+ if (typeof properties.queue !== 'undefined') {
+ queue = properties.queue;
+ delete properties.queue;
+ }
+
+ if (typeof properties.delay !== 'undefined') {
+ delay = properties.delay;
+ delete properties.delay;
+ }
+
+ // Set defaults. (`400` duration, `ease` easing)
+ if (typeof duration === 'undefined') { duration = $.fx.speeds._default; }
+ if (typeof easing === 'undefined') { easing = $.cssEase._default; }
+
+ duration = toMS(duration);
+
+ // Build the `transition` property.
+ var transitionValue = getTransition(properties, duration, easing, delay);
+
+ // Compute delay until callback.
+ // If this becomes 0, don't bother setting the transition property.
+ var work = $.transit.enabled && support.transition;
+ var i = work ? (parseInt(duration, 10) + parseInt(delay, 10)) : 0;
+
+ // If there's nothing to do...
+ if (i === 0) {
+ var fn = function(next) {
+ self.css(properties);
+ if (callback) { callback.apply(self); }
+ if (next) { next(); }
+ };
+
+ callOrQueue(self, queue, fn);
+ return self;
+ }
+
+ // Save the old transitions of each element so we can restore it later.
+ var oldTransitions = {};
+
+ var run = function(nextCall) {
+ var bound = false;
+
+ // Prepare the callback.
+ var cb = function() {
+ if (bound) { self.unbind(transitionEnd, cb); }
+
+ if (i > 0) {
+ self.each(function() {
+ this.style[support.transition] = (oldTransitions[this] || null);
+ });
+ }
+
+ if (typeof callback === 'function') { callback.apply(self); }
+ if (typeof nextCall === 'function') { nextCall(); }
+ };
+
+ if ((i > 0) && (transitionEnd) && ($.transit.useTransitionEnd)) {
+ // Use the 'transitionend' event if it's available.
+ bound = true;
+ self.bind(transitionEnd, cb);
+ } else {
+ // Fallback to timers if the 'transitionend' event isn't supported.
+ window.setTimeout(cb, i);
+ }
+
+ // Apply transitions.
+ self.each(function() {
+ if (i > 0) {
+ this.style[support.transition] = transitionValue;
+ }
+ $(this).css(properties);
+ });
+ };
+
+ // Defer running. This allows the browser to paint any pending CSS it hasn't
+ // painted yet before doing the transitions.
+ var deferredRun = function(next) {
+ var i = 0;
+
+ // Durations that are too slow will get transitions mixed up.
+ // (Tested on Mac/FF 7.0.1)
+ if ((support.transition === 'MozTransition') && (i < 25)) { i = 25; }
+
+ window.setTimeout(function() { run(next); }, i);
+ };
+
+ // Use jQuery's fx queue.
+ callOrQueue(self, queue, deferredRun);
+
+ // Chainability.
+ return this;
+ };
+
+ function registerCssHook(prop, isPixels) {
+ // For certain properties, the 'px' should not be implied.
+ if (!isPixels) { $.cssNumber[prop] = true; }
+
+ $.transit.propertyMap[prop] = support.transform;
+
+ $.cssHooks[prop] = {
+ get: function(elem) {
+ var t = $(elem).css('transit:transform');
+ return t.get(prop);
+ },
+
+ set: function(elem, value) {
+ var t = $(elem).css('transit:transform');
+ t.setFromString(prop, value);
+
+ $(elem).css({ 'transit:transform': t });
+ }
+ };
+
+ }
+
+ // ### uncamel(str)
+ // Converts a camelcase string to a dasherized string.
+ // (`marginLeft` => `margin-left`)
+ function uncamel(str) {
+ return str.replace(/([A-Z])/g, function(letter) { return '-' + letter.toLowerCase(); });
+ }
+
+ // ### unit(number, unit)
+ // Ensures that number `number` has a unit. If no unit is found, assume the
+ // default is `unit`.
+ //
+ // unit(2, 'px') //=> "2px"
+ // unit("30deg", 'rad') //=> "30deg"
+ //
+ function unit(i, units) {
+ if ((typeof i === "string") && (!i.match(/^[\-0-9\.]+$/))) {
+ return i;
+ } else {
+ return "" + i + units;
+ }
+ }
+
+ // ### toMS(duration)
+ // Converts given `duration` to a millisecond string.
+ //
+ // toMS('fast') //=> '400ms'
+ // toMS(10) //=> '10ms'
+ //
+ function toMS(duration) {
+ var i = duration;
+
+ // Allow for string durations like 'fast'.
+ if ($.fx.speeds[i]) { i = $.fx.speeds[i]; }
+
+ return unit(i, 'ms');
+ }
+
+ // Export some functions for testable-ness.
+ $.transit.getTransitionValue = getTransition;
+})(jQuery);