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jquery.transit.js
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jquery.transit.js
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/*!
* jQuery Transit - CSS3 transitions and transformations
* (c) 2011-2014 Rico Sta. Cruz
* MIT Licensed.
*
* http://ricostacruz.com/jquery.transit
* http://github.com/rstacruz/jquery.transit
*/
/* jshint expr: true */
;(function (root, factory) {
if (typeof define === 'function' && define.amd) {
define(['jquery'], factory);
} else if (typeof exports === 'object') {
module.exports = factory(require('jquery'));
} else {
factory(root.jQuery);
}
}(this, function($) {
$.transit = {
version: "0.9.12",
// 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);
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.filter = getVendorPropertyName('Filter');
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
'easeInCubic': 'cubic-bezier(.550,.055,.675,.190)',
'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
};
// ## 'filter' CSS hook
// Allows you to use the `filter` property in CSS.
//
// $("#hello").css({ filter: 'blur(10px)' });
//
$.cssHooks.filter = {
get: function(elem) {
return elem.style[support.filter];
},
set: function(elem, value) {
elem.style[support.filter] = value;
}
};
// jQuery 1.8+ supports prefix-free transitions, so these polyfills will not
// be necessary.
if ($.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' });
//
$.cssHooks.transition = {
get: function(elem) {
return elem.style[support.transition];
},
set: function(elem, value) {
elem.style[support.transition] = value;
}
};
}
// ## Other CSS hooks
// Allows you to rotate, scale and translate.
registerCssHook('scale');
registerCssHook('scaleX');
registerCssHook('scaleY');
registerCssHook('translate');
registerCssHook('rotate');
registerCssHook('rotateX');
registerCssHook('rotateY');
registerCssHook('rotate3d');
registerCssHook('perspective');
registerCssHook('skewX');
registerCssHook('skewY');
registerCssHook('x', true);
registerCssHook('y', true);
// ## Transform class
// This is the main class of a transformation property that powers
// `$.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 {
self.each(function () {
fn.call(this);
});
}
}
// ### 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] || $.cssProps[key] || key;
key = uncamel(key); // Convert back to dasherized
// Get vendor specify propertie
if (support[key])
key = uncamel(support[key]);
if ($.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;
var theseProperties = $.extend(true, {}, properties);
// Account for `.transition(properties, callback)`.
if (typeof duration === 'function') {
callback = duration;
duration = undefined;
}
// Account for `.transition(properties, options)`.
if (typeof duration === 'object') {
easing = duration.easing;
delay = duration.delay || 0;
queue = typeof duration.queue === "undefined" ? true : duration.queue;
callback = duration.complete;
duration = duration.duration;
}
// Account for `.transition(properties, duration, callback)`.
if (typeof easing === 'function') {
callback = easing;
easing = undefined;
}
// Alternate syntax.
if (typeof theseProperties.easing !== 'undefined') {
easing = theseProperties.easing;
delete theseProperties.easing;
}
if (typeof theseProperties.duration !== 'undefined') {
duration = theseProperties.duration;
delete theseProperties.duration;
}
if (typeof theseProperties.complete !== 'undefined') {
callback = theseProperties.complete;
delete theseProperties.complete;
}
if (typeof theseProperties.queue !== 'undefined') {
queue = theseProperties.queue;
delete theseProperties.queue;
}
if (typeof theseProperties.delay !== 'undefined') {
delay = theseProperties.delay;
delete theseProperties.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(theseProperties, duration, easing, delay);
// Compute delay until callback.
// If this becomes 0, don't bother setting the transition property.
var work = $.transit.enabled && support.transition;
var i = work ? (parseInt(duration, 10) + parseInt(delay, 10)) : 0;
// If there's nothing to do...
if (i === 0) {
var fn = function(next) {
self.css(theseProperties);
if (callback) { callback.apply(self); }
if (next) { next(); }
};
callOrQueue(self, queue, fn);
return self;
}
// Save the old transitions of each element so we can restore it later.
var oldTransitions = {};
var run = function(nextCall) {
var bound = false;
// Prepare the callback.
var cb = function() {
if (bound) { self.unbind(transitionEnd, cb); }
if (i > 0) {
self.each(function() {
this.style[support.transition] = (oldTransitions[this] || null);
});
}
if (typeof callback === 'function') { callback.apply(self); }
if (typeof nextCall === 'function') { nextCall(); }
};
if ((i > 0) && (transitionEnd) && ($.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(theseProperties);
});
};
// Defer running. This allows the browser to paint any pending CSS it hasn't
// painted yet before doing the transitions.
var deferredRun = function(next) {
this.offsetWidth = this.offsetWidth; // force a repaint
run(next);
};
// 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') => $.fx.speeds[i] => "200ms"
// toMS('normal') //=> $.fx.speeds._default => "400ms"
// toMS(10) //=> '10ms'
// toMS('100ms') //=> '100ms'
//
function toMS(duration) {
var i = duration;
// Allow string durations like 'fast' and 'slow', without overriding numeric values.
if (typeof i === 'string' && (!i.match(/^[\-0-9\.]+/))) { i = $.fx.speeds[i] || $.fx.speeds._default; }
return unit(i, 'ms');
}
// Export some functions for testable-ness.
$.transit.getTransitionValue = getTransition;
return $;
}));