/**
* @license AngularJS v1.4.4
* (c) 2010-2015 Google, Inc. http://angularjs.org
* License: MIT
*/
(function(window, angular, undefined) {'use strict';
/* jshint ignore:start */
var noop = angular.noop;
var extend = angular.extend;
var jqLite = angular.element;
var forEach = angular.forEach;
var isArray = angular.isArray;
var isString = angular.isString;
var isObject = angular.isObject;
var isUndefined = angular.isUndefined;
var isDefined = angular.isDefined;
var isFunction = angular.isFunction;
var isElement = angular.isElement;
var ELEMENT_NODE = 1;
var COMMENT_NODE = 8;
var ADD_CLASS_SUFFIX = '-add';
var REMOVE_CLASS_SUFFIX = '-remove';
var EVENT_CLASS_PREFIX = 'ng-';
var ACTIVE_CLASS_SUFFIX = '-active';
var NG_ANIMATE_CLASSNAME = 'ng-animate';
var NG_ANIMATE_CHILDREN_DATA = '$$ngAnimateChildren';
// Detect proper transitionend/animationend event names.
var CSS_PREFIX = '', TRANSITION_PROP, TRANSITIONEND_EVENT, ANIMATION_PROP, ANIMATIONEND_EVENT;
// If unprefixed events are not supported but webkit-prefixed are, use the latter.
// Otherwise, just use W3C names, browsers not supporting them at all will just ignore them.
// Note: Chrome implements `window.onwebkitanimationend` and doesn't implement `window.onanimationend`
// but at the same time dispatches the `animationend` event and not `webkitAnimationEnd`.
// Register both events in case `window.onanimationend` is not supported because of that,
// do the same for `transitionend` as Safari is likely to exhibit similar behavior.
// Also, the only modern browser that uses vendor prefixes for transitions/keyframes is webkit
// therefore there is no reason to test anymore for other vendor prefixes:
// http://caniuse.com/#search=transition
if (window.ontransitionend === undefined && window.onwebkittransitionend !== undefined) {
CSS_PREFIX = '-webkit-';
TRANSITION_PROP = 'WebkitTransition';
TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';
} else {
TRANSITION_PROP = 'transition';
TRANSITIONEND_EVENT = 'transitionend';
}
if (window.onanimationend === undefined && window.onwebkitanimationend !== undefined) {
CSS_PREFIX = '-webkit-';
ANIMATION_PROP = 'WebkitAnimation';
ANIMATIONEND_EVENT = 'webkitAnimationEnd animationend';
} else {
ANIMATION_PROP = 'animation';
ANIMATIONEND_EVENT = 'animationend';
}
var DURATION_KEY = 'Duration';
var PROPERTY_KEY = 'Property';
var DELAY_KEY = 'Delay';
var TIMING_KEY = 'TimingFunction';
var ANIMATION_ITERATION_COUNT_KEY = 'IterationCount';
var ANIMATION_PLAYSTATE_KEY = 'PlayState';
var SAFE_FAST_FORWARD_DURATION_VALUE = 9999;
var ANIMATION_DELAY_PROP = ANIMATION_PROP + DELAY_KEY;
var ANIMATION_DURATION_PROP = ANIMATION_PROP + DURATION_KEY;
var TRANSITION_DELAY_PROP = TRANSITION_PROP + DELAY_KEY;
var TRANSITION_DURATION_PROP = TRANSITION_PROP + DURATION_KEY;
var isPromiseLike = function(p) {
return p && p.then ? true : false;
};
function assertArg(arg, name, reason) {
if (!arg) {
throw ngMinErr('areq', "Argument '{0}' is {1}", (name || '?'), (reason || "required"));
}
return arg;
}
function mergeClasses(a,b) {
if (!a && !b) return '';
if (!a) return b;
if (!b) return a;
if (isArray(a)) a = a.join(' ');
if (isArray(b)) b = b.join(' ');
return a + ' ' + b;
}
function packageStyles(options) {
var styles = {};
if (options && (options.to || options.from)) {
styles.to = options.to;
styles.from = options.from;
}
return styles;
}
function pendClasses(classes, fix, isPrefix) {
var className = '';
classes = isArray(classes)
? classes
: classes && isString(classes) && classes.length
? classes.split(/\s+/)
: [];
forEach(classes, function(klass, i) {
if (klass && klass.length > 0) {
className += (i > 0) ? ' ' : '';
className += isPrefix ? fix + klass
: klass + fix;
}
});
return className;
}
function removeFromArray(arr, val) {
var index = arr.indexOf(val);
if (val >= 0) {
arr.splice(index, 1);
}
}
function stripCommentsFromElement(element) {
if (element instanceof jqLite) {
switch (element.length) {
case 0:
return [];
break;
case 1:
// there is no point of stripping anything if the element
// is the only element within the jqLite wrapper.
// (it's important that we retain the element instance.)
if (element[0].nodeType === ELEMENT_NODE) {
return element;
}
break;
default:
return jqLite(extractElementNode(element));
break;
}
}
if (element.nodeType === ELEMENT_NODE) {
return jqLite(element);
}
}
function extractElementNode(element) {
if (!element[0]) return element;
for (var i = 0; i < element.length; i++) {
var elm = element[i];
if (elm.nodeType == ELEMENT_NODE) {
return elm;
}
}
}
function $$addClass($$jqLite, element, className) {
forEach(element, function(elm) {
$$jqLite.addClass(elm, className);
});
}
function $$removeClass($$jqLite, element, className) {
forEach(element, function(elm) {
$$jqLite.removeClass(elm, className);
});
}
function applyAnimationClassesFactory($$jqLite) {
return function(element, options) {
if (options.addClass) {
$$addClass($$jqLite, element, options.addClass);
options.addClass = null;
}
if (options.removeClass) {
$$removeClass($$jqLite, element, options.removeClass);
options.removeClass = null;
}
}
}
function prepareAnimationOptions(options) {
options = options || {};
if (!options.$$prepared) {
var domOperation = options.domOperation || noop;
options.domOperation = function() {
options.$$domOperationFired = true;
domOperation();
domOperation = noop;
};
options.$$prepared = true;
}
return options;
}
function applyAnimationStyles(element, options) {
applyAnimationFromStyles(element, options);
applyAnimationToStyles(element, options);
}
function applyAnimationFromStyles(element, options) {
if (options.from) {
element.css(options.from);
options.from = null;
}
}
function applyAnimationToStyles(element, options) {
if (options.to) {
element.css(options.to);
options.to = null;
}
}
function mergeAnimationOptions(element, target, newOptions) {
var toAdd = (target.addClass || '') + ' ' + (newOptions.addClass || '');
var toRemove = (target.removeClass || '') + ' ' + (newOptions.removeClass || '');
var classes = resolveElementClasses(element.attr('class'), toAdd, toRemove);
if (newOptions.preparationClasses) {
target.preparationClasses = concatWithSpace(newOptions.preparationClasses, target.preparationClasses);
delete newOptions.preparationClasses;
}
// noop is basically when there is no callback; otherwise something has been set
var realDomOperation = target.domOperation !== noop ? target.domOperation : null;
extend(target, newOptions);
// TODO(matsko or sreeramu): proper fix is to maintain all animation callback in array and call at last,but now only leave has the callback so no issue with this.
if (realDomOperation) {
target.domOperation = realDomOperation;
}
if (classes.addClass) {
target.addClass = classes.addClass;
} else {
target.addClass = null;
}
if (classes.removeClass) {
target.removeClass = classes.removeClass;
} else {
target.removeClass = null;
}
return target;
}
function resolveElementClasses(existing, toAdd, toRemove) {
var ADD_CLASS = 1;
var REMOVE_CLASS = -1;
var flags = {};
existing = splitClassesToLookup(existing);
toAdd = splitClassesToLookup(toAdd);
forEach(toAdd, function(value, key) {
flags[key] = ADD_CLASS;
});
toRemove = splitClassesToLookup(toRemove);
forEach(toRemove, function(value, key) {
flags[key] = flags[key] === ADD_CLASS ? null : REMOVE_CLASS;
});
var classes = {
addClass: '',
removeClass: ''
};
forEach(flags, function(val, klass) {
var prop, allow;
if (val === ADD_CLASS) {
prop = 'addClass';
allow = !existing[klass];
} else if (val === REMOVE_CLASS) {
prop = 'removeClass';
allow = existing[klass];
}
if (allow) {
if (classes[prop].length) {
classes[prop] += ' ';
}
classes[prop] += klass;
}
});
function splitClassesToLookup(classes) {
if (isString(classes)) {
classes = classes.split(' ');
}
var obj = {};
forEach(classes, function(klass) {
// sometimes the split leaves empty string values
// incase extra spaces were applied to the options
if (klass.length) {
obj[klass] = true;
}
});
return obj;
}
return classes;
}
function getDomNode(element) {
return (element instanceof angular.element) ? element[0] : element;
}
function applyGeneratedPreparationClasses(element, event, options) {
var classes = '';
if (event) {
classes = pendClasses(event, EVENT_CLASS_PREFIX, true);
}
if (options.addClass) {
classes = concatWithSpace(classes, pendClasses(options.addClass, ADD_CLASS_SUFFIX));
}
if (options.removeClass) {
classes = concatWithSpace(classes, pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX));
}
if (classes.length) {
options.preparationClasses = classes;
element.addClass(classes);
}
}
function clearGeneratedClasses(element, options) {
if (options.preparationClasses) {
element.removeClass(options.preparationClasses);
options.preparationClasses = null;
}
if (options.activeClasses) {
element.removeClass(options.activeClasses);
options.activeClasses = null;
}
}
function blockTransitions(node, duration) {
// we use a negative delay value since it performs blocking
// yet it doesn't kill any existing transitions running on the
// same element which makes this safe for class-based animations
var value = duration ? '-' + duration + 's' : '';
applyInlineStyle(node, [TRANSITION_DELAY_PROP, value]);
return [TRANSITION_DELAY_PROP, value];
}
function blockKeyframeAnimations(node, applyBlock) {
var value = applyBlock ? 'paused' : '';
var key = ANIMATION_PROP + ANIMATION_PLAYSTATE_KEY;
applyInlineStyle(node, [key, value]);
return [key, value];
}
function applyInlineStyle(node, styleTuple) {
var prop = styleTuple[0];
var value = styleTuple[1];
node.style[prop] = value;
}
function concatWithSpace(a,b) {
if (!a) return b;
if (!b) return a;
return a + ' ' + b;
}
function $$BodyProvider() {
this.$get = ['$document', function($document) {
return jqLite($document[0].body);
}];
}
var $$AnimateChildrenDirective = [function() {
return function(scope, element, attrs) {
var val = attrs.ngAnimateChildren;
if (angular.isString(val) && val.length === 0) { //empty attribute
element.data(NG_ANIMATE_CHILDREN_DATA, true);
} else {
attrs.$observe('ngAnimateChildren', function(value) {
value = value === 'on' || value === 'true';
element.data(NG_ANIMATE_CHILDREN_DATA, value);
});
}
};
}];
/**
* @ngdoc service
* @name $animateCss
* @kind object
*
* @description
* The `$animateCss` service is a useful utility to trigger customized CSS-based transitions/keyframes
* from a JavaScript-based animation or directly from a directive. The purpose of `$animateCss` is NOT
* to side-step how `$animate` and ngAnimate work, but the goal is to allow pre-existing animations or
* directives to create more complex animations that can be purely driven using CSS code.
*
* Note that only browsers that support CSS transitions and/or keyframe animations are capable of
* rendering animations triggered via `$animateCss` (bad news for IE9 and lower).
*
* ## Usage
* Once again, `$animateCss` is designed to be used inside of a registered JavaScript animation that
* is powered by ngAnimate. It is possible to use `$animateCss` directly inside of a directive, however,
* any automatic control over cancelling animations and/or preventing animations from being run on
* child elements will not be handled by Angular. For this to work as expected, please use `$animate` to
* trigger the animation and then setup a JavaScript animation that injects `$animateCss` to trigger
* the CSS animation.
*
* The example below shows how we can create a folding animation on an element using `ng-if`:
*
* ```html
*
*
* This element will go BOOM
*
*
* ```
*
* Now we create the **JavaScript animation** that will trigger the CSS transition:
*
* ```js
* ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {
* return {
* enter: function(element, doneFn) {
* var height = element[0].offsetHeight;
* return $animateCss(element, {
* from: { height:'0px' },
* to: { height:height + 'px' },
* duration: 1 // one second
* });
* }
* }
* }]);
* ```
*
* ## More Advanced Uses
*
* `$animateCss` is the underlying code that ngAnimate uses to power **CSS-based animations** behind the scenes. Therefore CSS hooks
* like `.ng-EVENT`, `.ng-EVENT-active`, `.ng-EVENT-stagger` are all features that can be triggered using `$animateCss` via JavaScript code.
*
* This also means that just about any combination of adding classes, removing classes, setting styles, dynamically setting a keyframe animation,
* applying a hardcoded duration or delay value, changing the animation easing or applying a stagger animation are all options that work with
* `$animateCss`. The service itself is smart enough to figure out the combination of options and examine the element styling properties in order
* to provide a working animation that will run in CSS.
*
* The example below showcases a more advanced version of the `.fold-animation` from the example above:
*
* ```js
* ngModule.animation('.fold-animation', ['$animateCss', function($animateCss) {
* return {
* enter: function(element, doneFn) {
* var height = element[0].offsetHeight;
* return $animateCss(element, {
* addClass: 'red large-text pulse-twice',
* easing: 'ease-out',
* from: { height:'0px' },
* to: { height:height + 'px' },
* duration: 1 // one second
* });
* }
* }
* }]);
* ```
*
* Since we're adding/removing CSS classes then the CSS transition will also pick those up:
*
* ```css
* /* since a hardcoded duration value of 1 was provided in the JavaScript animation code,
* the CSS classes below will be transitioned despite them being defined as regular CSS classes */
* .red { background:red; }
* .large-text { font-size:20px; }
*
* /* we can also use a keyframe animation and $animateCss will make it work alongside the transition */
* .pulse-twice {
* animation: 0.5s pulse linear 2;
* -webkit-animation: 0.5s pulse linear 2;
* }
*
* @keyframes pulse {
* from { transform: scale(0.5); }
* to { transform: scale(1.5); }
* }
*
* @-webkit-keyframes pulse {
* from { -webkit-transform: scale(0.5); }
* to { -webkit-transform: scale(1.5); }
* }
* ```
*
* Given this complex combination of CSS classes, styles and options, `$animateCss` will figure everything out and make the animation happen.
*
* ## How the Options are handled
*
* `$animateCss` is very versatile and intelligent when it comes to figuring out what configurations to apply to the element to ensure the animation
* works with the options provided. Say for example we were adding a class that contained a keyframe value and we wanted to also animate some inline
* styles using the `from` and `to` properties.
*
* ```js
* var animator = $animateCss(element, {
* from: { background:'red' },
* to: { background:'blue' }
* });
* animator.start();
* ```
*
* ```css
* .rotating-animation {
* animation:0.5s rotate linear;
* -webkit-animation:0.5s rotate linear;
* }
*
* @keyframes rotate {
* from { transform: rotate(0deg); }
* to { transform: rotate(360deg); }
* }
*
* @-webkit-keyframes rotate {
* from { -webkit-transform: rotate(0deg); }
* to { -webkit-transform: rotate(360deg); }
* }
* ```
*
* The missing pieces here are that we do not have a transition set (within the CSS code nor within the `$animateCss` options) and the duration of the animation is
* going to be detected from what the keyframe styles on the CSS class are. In this event, `$animateCss` will automatically create an inline transition
* style matching the duration detected from the keyframe style (which is present in the CSS class that is being added) and then prepare both the transition
* and keyframe animations to run in parallel on the element. Then when the animation is underway the provided `from` and `to` CSS styles will be applied
* and spread across the transition and keyframe animation.
*
* ## What is returned
*
* `$animateCss` works in two stages: a preparation phase and an animation phase. Therefore when `$animateCss` is first called it will NOT actually
* start the animation. All that is going on here is that the element is being prepared for the animation (which means that the generated CSS classes are
* added and removed on the element). Once `$animateCss` is called it will return an object with the following properties:
*
* ```js
* var animator = $animateCss(element, { ... });
* ```
*
* Now what do the contents of our `animator` variable look like:
*
* ```js
* {
* // starts the animation
* start: Function,
*
* // ends (aborts) the animation
* end: Function
* }
* ```
*
* To actually start the animation we need to run `animation.start()` which will then return a promise that we can hook into to detect when the animation ends.
* If we choose not to run the animation then we MUST run `animation.end()` to perform a cleanup on the element (since some CSS classes and stlyes may have been
* applied to the element during the preparation phase). Note that all other properties such as duration, delay, transitions and keyframes are just properties
* and that changing them will not reconfigure the parameters of the animation.
*
* ### runner.done() vs runner.then()
* It is documented that `animation.start()` will return a promise object and this is true, however, there is also an additional method available on the
* runner called `.done(callbackFn)`. The done method works the same as `.finally(callbackFn)`, however, it does **not trigger a digest to occur**.
* Therefore, for performance reasons, it's always best to use `runner.done(callback)` instead of `runner.then()`, `runner.catch()` or `runner.finally()`
* unless you really need a digest to kick off afterwards.
*
* Keep in mind that, to make this easier, ngAnimate has tweaked the JS animations API to recognize when a runner instance is returned from $animateCss
* (so there is no need to call `runner.done(doneFn)` inside of your JavaScript animation code).
* Check the {@link ngAnimate.$animateCss#usage animation code above} to see how this works.
*
* @param {DOMElement} element the element that will be animated
* @param {object} options the animation-related options that will be applied during the animation
*
* * `event` - The DOM event (e.g. enter, leave, move). When used, a generated CSS class of `ng-EVENT` and `ng-EVENT-active` will be applied
* to the element during the animation. Multiple events can be provided when spaces are used as a separator. (Note that this will not perform any DOM operation.)
* * `easing` - The CSS easing value that will be applied to the transition or keyframe animation (or both).
* * `transition` - The raw CSS transition style that will be used (e.g. `1s linear all`).
* * `keyframeStyle` - The raw CSS keyframe animation style that will be used (e.g. `1s my_animation linear`).
* * `from` - The starting CSS styles (a key/value object) that will be applied at the start of the animation.
* * `to` - The ending CSS styles (a key/value object) that will be applied across the animation via a CSS transition.
* * `addClass` - A space separated list of CSS classes that will be added to the element and spread across the animation.
* * `removeClass` - A space separated list of CSS classes that will be removed from the element and spread across the animation.
* * `duration` - A number value representing the total duration of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `0`
* is provided then the animation will be skipped entirely.
* * `delay` - A number value representing the total delay of the transition and/or keyframe (note that a value of 1 is 1000ms). If a value of `true` is
* used then whatever delay value is detected from the CSS classes will be mirrored on the elements styles (e.g. by setting delay true then the style value
* of the element will be `transition-delay: DETECTED_VALUE`). Using `true` is useful when you want the CSS classes and inline styles to all share the same
* CSS delay value.
* * `stagger` - A numeric time value representing the delay between successively animated elements
* ({@link ngAnimate#css-staggering-animations Click here to learn how CSS-based staggering works in ngAnimate.})
* * `staggerIndex` - The numeric index representing the stagger item (e.g. a value of 5 is equal to the sixth item in the stagger; therefore when a
* * `stagger` option value of `0.1` is used then there will be a stagger delay of `600ms`)
* * `applyClassesEarly` - Whether or not the classes being added or removed will be used when detecting the animation. This is set by `$animate` when enter/leave/move animations are fired to ensure that the CSS classes are resolved in time. (Note that this will prevent any transitions from occuring on the classes being added and removed.)
*
* @return {object} an object with start and end methods and details about the animation.
*
* * `start` - The method to start the animation. This will return a `Promise` when called.
* * `end` - This method will cancel the animation and remove all applied CSS classes and styles.
*/
var ONE_SECOND = 1000;
var BASE_TEN = 10;
var ELAPSED_TIME_MAX_DECIMAL_PLACES = 3;
var CLOSING_TIME_BUFFER = 1.5;
var DETECT_CSS_PROPERTIES = {
transitionDuration: TRANSITION_DURATION_PROP,
transitionDelay: TRANSITION_DELAY_PROP,
transitionProperty: TRANSITION_PROP + PROPERTY_KEY,
animationDuration: ANIMATION_DURATION_PROP,
animationDelay: ANIMATION_DELAY_PROP,
animationIterationCount: ANIMATION_PROP + ANIMATION_ITERATION_COUNT_KEY
};
var DETECT_STAGGER_CSS_PROPERTIES = {
transitionDuration: TRANSITION_DURATION_PROP,
transitionDelay: TRANSITION_DELAY_PROP,
animationDuration: ANIMATION_DURATION_PROP,
animationDelay: ANIMATION_DELAY_PROP
};
function getCssKeyframeDurationStyle(duration) {
return [ANIMATION_DURATION_PROP, duration + 's'];
}
function getCssDelayStyle(delay, isKeyframeAnimation) {
var prop = isKeyframeAnimation ? ANIMATION_DELAY_PROP : TRANSITION_DELAY_PROP;
return [prop, delay + 's'];
}
function computeCssStyles($window, element, properties) {
var styles = Object.create(null);
var detectedStyles = $window.getComputedStyle(element) || {};
forEach(properties, function(formalStyleName, actualStyleName) {
var val = detectedStyles[formalStyleName];
if (val) {
var c = val.charAt(0);
// only numerical-based values have a negative sign or digit as the first value
if (c === '-' || c === '+' || c >= 0) {
val = parseMaxTime(val);
}
// by setting this to null in the event that the delay is not set or is set directly as 0
// then we can still allow for zegative values to be used later on and not mistake this
// value for being greater than any other negative value.
if (val === 0) {
val = null;
}
styles[actualStyleName] = val;
}
});
return styles;
}
function parseMaxTime(str) {
var maxValue = 0;
var values = str.split(/\s*,\s*/);
forEach(values, function(value) {
// it's always safe to consider only second values and omit `ms` values since
// getComputedStyle will always handle the conversion for us
if (value.charAt(value.length - 1) == 's') {
value = value.substring(0, value.length - 1);
}
value = parseFloat(value) || 0;
maxValue = maxValue ? Math.max(value, maxValue) : value;
});
return maxValue;
}
function truthyTimingValue(val) {
return val === 0 || val != null;
}
function getCssTransitionDurationStyle(duration, applyOnlyDuration) {
var style = TRANSITION_PROP;
var value = duration + 's';
if (applyOnlyDuration) {
style += DURATION_KEY;
} else {
value += ' linear all';
}
return [style, value];
}
function createLocalCacheLookup() {
var cache = Object.create(null);
return {
flush: function() {
cache = Object.create(null);
},
count: function(key) {
var entry = cache[key];
return entry ? entry.total : 0;
},
get: function(key) {
var entry = cache[key];
return entry && entry.value;
},
put: function(key, value) {
if (!cache[key]) {
cache[key] = { total: 1, value: value };
} else {
cache[key].total++;
}
}
};
}
var $AnimateCssProvider = ['$animateProvider', function($animateProvider) {
var gcsLookup = createLocalCacheLookup();
var gcsStaggerLookup = createLocalCacheLookup();
this.$get = ['$window', '$$jqLite', '$$AnimateRunner', '$timeout', '$$forceReflow', '$sniffer', '$$rAF',
function($window, $$jqLite, $$AnimateRunner, $timeout, $$forceReflow, $sniffer, $$rAF) {
var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);
var parentCounter = 0;
function gcsHashFn(node, extraClasses) {
var KEY = "$$ngAnimateParentKey";
var parentNode = node.parentNode;
var parentID = parentNode[KEY] || (parentNode[KEY] = ++parentCounter);
return parentID + '-' + node.getAttribute('class') + '-' + extraClasses;
}
function computeCachedCssStyles(node, className, cacheKey, properties) {
var timings = gcsLookup.get(cacheKey);
if (!timings) {
timings = computeCssStyles($window, node, properties);
if (timings.animationIterationCount === 'infinite') {
timings.animationIterationCount = 1;
}
}
// we keep putting this in multiple times even though the value and the cacheKey are the same
// because we're keeping an interal tally of how many duplicate animations are detected.
gcsLookup.put(cacheKey, timings);
return timings;
}
function computeCachedCssStaggerStyles(node, className, cacheKey, properties) {
var stagger;
// if we have one or more existing matches of matching elements
// containing the same parent + CSS styles (which is how cacheKey works)
// then staggering is possible
if (gcsLookup.count(cacheKey) > 0) {
stagger = gcsStaggerLookup.get(cacheKey);
if (!stagger) {
var staggerClassName = pendClasses(className, '-stagger');
$$jqLite.addClass(node, staggerClassName);
stagger = computeCssStyles($window, node, properties);
// force the conversion of a null value to zero incase not set
stagger.animationDuration = Math.max(stagger.animationDuration, 0);
stagger.transitionDuration = Math.max(stagger.transitionDuration, 0);
$$jqLite.removeClass(node, staggerClassName);
gcsStaggerLookup.put(cacheKey, stagger);
}
}
return stagger || {};
}
var cancelLastRAFRequest;
var rafWaitQueue = [];
function waitUntilQuiet(callback) {
if (cancelLastRAFRequest) {
cancelLastRAFRequest(); //cancels the request
}
rafWaitQueue.push(callback);
cancelLastRAFRequest = $$rAF(function() {
cancelLastRAFRequest = null;
gcsLookup.flush();
gcsStaggerLookup.flush();
// DO NOT REMOVE THIS LINE OR REFACTOR OUT THE `pageWidth` variable.
// PLEASE EXAMINE THE `$$forceReflow` service to understand why.
var pageWidth = $$forceReflow();
// we use a for loop to ensure that if the queue is changed
// during this looping then it will consider new requests
for (var i = 0; i < rafWaitQueue.length; i++) {
rafWaitQueue[i](pageWidth);
}
rafWaitQueue.length = 0;
});
}
return init;
function computeTimings(node, className, cacheKey) {
var timings = computeCachedCssStyles(node, className, cacheKey, DETECT_CSS_PROPERTIES);
var aD = timings.animationDelay;
var tD = timings.transitionDelay;
timings.maxDelay = aD && tD
? Math.max(aD, tD)
: (aD || tD);
timings.maxDuration = Math.max(
timings.animationDuration * timings.animationIterationCount,
timings.transitionDuration);
return timings;
}
function init(element, options) {
var node = getDomNode(element);
if (!node || !node.parentNode) {
return closeAndReturnNoopAnimator();
}
options = prepareAnimationOptions(options);
var temporaryStyles = [];
var classes = element.attr('class');
var styles = packageStyles(options);
var animationClosed;
var animationPaused;
var animationCompleted;
var runner;
var runnerHost;
var maxDelay;
var maxDelayTime;
var maxDuration;
var maxDurationTime;
if (options.duration === 0 || (!$sniffer.animations && !$sniffer.transitions)) {
return closeAndReturnNoopAnimator();
}
var method = options.event && isArray(options.event)
? options.event.join(' ')
: options.event;
var isStructural = method && options.structural;
var structuralClassName = '';
var addRemoveClassName = '';
if (isStructural) {
structuralClassName = pendClasses(method, EVENT_CLASS_PREFIX, true);
} else if (method) {
structuralClassName = method;
}
if (options.addClass) {
addRemoveClassName += pendClasses(options.addClass, ADD_CLASS_SUFFIX);
}
if (options.removeClass) {
if (addRemoveClassName.length) {
addRemoveClassName += ' ';
}
addRemoveClassName += pendClasses(options.removeClass, REMOVE_CLASS_SUFFIX);
}
// there may be a situation where a structural animation is combined together
// with CSS classes that need to resolve before the animation is computed.
// However this means that there is no explicit CSS code to block the animation
// from happening (by setting 0s none in the class name). If this is the case
// we need to apply the classes before the first rAF so we know to continue if
// there actually is a detected transition or keyframe animation
if (options.applyClassesEarly && addRemoveClassName.length) {
applyAnimationClasses(element, options);
addRemoveClassName = '';
}
var preparationClasses = [structuralClassName, addRemoveClassName].join(' ').trim();
var fullClassName = classes + ' ' + preparationClasses;
var activeClasses = pendClasses(preparationClasses, ACTIVE_CLASS_SUFFIX);
var hasToStyles = styles.to && Object.keys(styles.to).length > 0;
var containsKeyframeAnimation = (options.keyframeStyle || '').length > 0;
// there is no way we can trigger an animation if no styles and
// no classes are being applied which would then trigger a transition,
// unless there a is raw keyframe value that is applied to the element.
if (!containsKeyframeAnimation
&& !hasToStyles
&& !preparationClasses) {
return closeAndReturnNoopAnimator();
}
var cacheKey, stagger;
if (options.stagger > 0) {
var staggerVal = parseFloat(options.stagger);
stagger = {
transitionDelay: staggerVal,
animationDelay: staggerVal,
transitionDuration: 0,
animationDuration: 0
};
} else {
cacheKey = gcsHashFn(node, fullClassName);
stagger = computeCachedCssStaggerStyles(node, preparationClasses, cacheKey, DETECT_STAGGER_CSS_PROPERTIES);
}
if (!options.$$skipPreparationClasses) {
$$jqLite.addClass(element, preparationClasses);
}
var applyOnlyDuration;
if (options.transitionStyle) {
var transitionStyle = [TRANSITION_PROP, options.transitionStyle];
applyInlineStyle(node, transitionStyle);
temporaryStyles.push(transitionStyle);
}
if (options.duration >= 0) {
applyOnlyDuration = node.style[TRANSITION_PROP].length > 0;
var durationStyle = getCssTransitionDurationStyle(options.duration, applyOnlyDuration);
// we set the duration so that it will be picked up by getComputedStyle later
applyInlineStyle(node, durationStyle);
temporaryStyles.push(durationStyle);
}
if (options.keyframeStyle) {
var keyframeStyle = [ANIMATION_PROP, options.keyframeStyle];
applyInlineStyle(node, keyframeStyle);
temporaryStyles.push(keyframeStyle);
}
var itemIndex = stagger
? options.staggerIndex >= 0
? options.staggerIndex
: gcsLookup.count(cacheKey)
: 0;
var isFirst = itemIndex === 0;
// this is a pre-emptive way of forcing the setup classes to be added and applied INSTANTLY
// without causing any combination of transitions to kick in. By adding a negative delay value
// it forces the setup class' transition to end immediately. We later then remove the negative
// transition delay to allow for the transition to naturally do it's thing. The beauty here is
// that if there is no transition defined then nothing will happen and this will also allow
// other transitions to be stacked on top of each other without any chopping them out.
if (isFirst && !options.skipBlocking) {
blockTransitions(node, SAFE_FAST_FORWARD_DURATION_VALUE);
}
var timings = computeTimings(node, fullClassName, cacheKey);
var relativeDelay = timings.maxDelay;
maxDelay = Math.max(relativeDelay, 0);
maxDuration = timings.maxDuration;
var flags = {};
flags.hasTransitions = timings.transitionDuration > 0;
flags.hasAnimations = timings.animationDuration > 0;
flags.hasTransitionAll = flags.hasTransitions && timings.transitionProperty == 'all';
flags.applyTransitionDuration = hasToStyles && (
(flags.hasTransitions && !flags.hasTransitionAll)
|| (flags.hasAnimations && !flags.hasTransitions));
flags.applyAnimationDuration = options.duration && flags.hasAnimations;
flags.applyTransitionDelay = truthyTimingValue(options.delay) && (flags.applyTransitionDuration || flags.hasTransitions);
flags.applyAnimationDelay = truthyTimingValue(options.delay) && flags.hasAnimations;
flags.recalculateTimingStyles = addRemoveClassName.length > 0;
if (flags.applyTransitionDuration || flags.applyAnimationDuration) {
maxDuration = options.duration ? parseFloat(options.duration) : maxDuration;
if (flags.applyTransitionDuration) {
flags.hasTransitions = true;
timings.transitionDuration = maxDuration;
applyOnlyDuration = node.style[TRANSITION_PROP + PROPERTY_KEY].length > 0;
temporaryStyles.push(getCssTransitionDurationStyle(maxDuration, applyOnlyDuration));
}
if (flags.applyAnimationDuration) {
flags.hasAnimations = true;
timings.animationDuration = maxDuration;
temporaryStyles.push(getCssKeyframeDurationStyle(maxDuration));
}
}
if (maxDuration === 0 && !flags.recalculateTimingStyles) {
return closeAndReturnNoopAnimator();
}
// we need to recalculate the delay value since we used a pre-emptive negative
// delay value and the delay value is required for the final event checking. This
// property will ensure that this will happen after the RAF phase has passed.
if (options.duration == null && timings.transitionDuration > 0) {
flags.recalculateTimingStyles = flags.recalculateTimingStyles || isFirst;
}
maxDelayTime = maxDelay * ONE_SECOND;
maxDurationTime = maxDuration * ONE_SECOND;
if (!options.skipBlocking) {
flags.blockTransition = timings.transitionDuration > 0;
flags.blockKeyframeAnimation = timings.animationDuration > 0 &&
stagger.animationDelay > 0 &&
stagger.animationDuration === 0;
}
applyAnimationFromStyles(element, options);
if (flags.blockTransition || flags.blockKeyframeAnimation) {
applyBlocking(maxDuration);
} else if (!options.skipBlocking) {
blockTransitions(node, false);
}
// TODO(matsko): for 1.5 change this code to have an animator object for better debugging
return {
$$willAnimate: true,
end: endFn,
start: function() {
if (animationClosed) return;
runnerHost = {
end: endFn,
cancel: cancelFn,
resume: null, //this will be set during the start() phase
pause: null
};
runner = new $$AnimateRunner(runnerHost);
waitUntilQuiet(start);
// we don't have access to pause/resume the animation
// since it hasn't run yet. AnimateRunner will therefore
// set noop functions for resume and pause and they will
// later be overridden once the animation is triggered
return runner;
}
};
function endFn() {
close();
}
function cancelFn() {
close(true);
}
function close(rejected) { // jshint ignore:line
// if the promise has been called already then we shouldn't close
// the animation again
if (animationClosed || (animationCompleted && animationPaused)) return;
animationClosed = true;
animationPaused = false;
if (!options.$$skipPreparationClasses) {
$$jqLite.removeClass(element, preparationClasses);
}
$$jqLite.removeClass(element, activeClasses);
blockKeyframeAnimations(node, false);
blockTransitions(node, false);
forEach(temporaryStyles, function(entry) {
// There is only one way to remove inline style properties entirely from elements.
// By using `removeProperty` this works, but we need to convert camel-cased CSS
// styles down to hyphenated values.
node.style[entry[0]] = '';
});
applyAnimationClasses(element, options);
applyAnimationStyles(element, options);
// the reason why we have this option is to allow a synchronous closing callback
// that is fired as SOON as the animation ends (when the CSS is removed) or if
// the animation never takes off at all. A good example is a leave animation since
// the element must be removed just after the animation is over or else the element
// will appear on screen for one animation frame causing an overbearing flicker.
if (options.onDone) {
options.onDone();
}
// if the preparation function fails then the promise is not setup
if (runner) {
runner.complete(!rejected);
}
}
function applyBlocking(duration) {
if (flags.blockTransition) {
blockTransitions(node, duration);
}
if (flags.blockKeyframeAnimation) {
blockKeyframeAnimations(node, !!duration);
}
}
function closeAndReturnNoopAnimator() {
runner = new $$AnimateRunner({
end: endFn,
cancel: cancelFn
});
close();
return {
$$willAnimate: false,
start: function() {
return runner;
},
end: endFn
};
}
function start() {
if (animationClosed) return;
if (!node.parentNode) {
close();
return;
}
var startTime, events = [];
// even though we only pause keyframe animations here the pause flag
// will still happen when transitions are used. Only the transition will
// not be paused since that is not possible. If the animation ends when
// paused then it will not complete until unpaused or cancelled.
var playPause = function(playAnimation) {
if (!animationCompleted) {
animationPaused = !playAnimation;
if (timings.animationDuration) {
var value = blockKeyframeAnimations(node, animationPaused);
animationPaused
? temporaryStyles.push(value)
: removeFromArray(temporaryStyles, value);
}
} else if (animationPaused && playAnimation) {
animationPaused = false;
close();
}
};
// checking the stagger duration prevents an accidently cascade of the CSS delay style
// being inherited from the parent. If the transition duration is zero then we can safely
// rely that the delay value is an intential stagger delay style.
var maxStagger = itemIndex > 0
&& ((timings.transitionDuration && stagger.transitionDuration === 0) ||
(timings.animationDuration && stagger.animationDuration === 0))
&& Math.max(stagger.animationDelay, stagger.transitionDelay);
if (maxStagger) {
$timeout(triggerAnimationStart,
Math.floor(maxStagger * itemIndex * ONE_SECOND),
false);
} else {
triggerAnimationStart();
}
// this will decorate the existing promise runner with pause/resume methods
runnerHost.resume = function() {
playPause(true);
};
runnerHost.pause = function() {
playPause(false);
};
function triggerAnimationStart() {
// just incase a stagger animation kicks in when the animation
// itself was cancelled entirely
if (animationClosed) return;
applyBlocking(false);
forEach(temporaryStyles, function(entry) {
var key = entry[0];
var value = entry[1];
node.style[key] = value;
});
applyAnimationClasses(element, options);
$$jqLite.addClass(element, activeClasses);
if (flags.recalculateTimingStyles) {
fullClassName = node.className + ' ' + preparationClasses;
cacheKey = gcsHashFn(node, fullClassName);
timings = computeTimings(node, fullClassName, cacheKey);
relativeDelay = timings.maxDelay;
maxDelay = Math.max(relativeDelay, 0);
maxDuration = timings.maxDuration;
if (maxDuration === 0) {
close();
return;
}
flags.hasTransitions = timings.transitionDuration > 0;
flags.hasAnimations = timings.animationDuration > 0;
}
if (flags.applyTransitionDelay || flags.applyAnimationDelay) {
relativeDelay = typeof options.delay !== "boolean" && truthyTimingValue(options.delay)
? parseFloat(options.delay)
: relativeDelay;
maxDelay = Math.max(relativeDelay, 0);
var delayStyle;
if (flags.applyTransitionDelay) {
timings.transitionDelay = relativeDelay;
delayStyle = getCssDelayStyle(relativeDelay);
temporaryStyles.push(delayStyle);
node.style[delayStyle[0]] = delayStyle[1];
}
if (flags.applyAnimationDelay) {
timings.animationDelay = relativeDelay;
delayStyle = getCssDelayStyle(relativeDelay, true);
temporaryStyles.push(delayStyle);
node.style[delayStyle[0]] = delayStyle[1];
}
}
maxDelayTime = maxDelay * ONE_SECOND;
maxDurationTime = maxDuration * ONE_SECOND;
if (options.easing) {
var easeProp, easeVal = options.easing;
if (flags.hasTransitions) {
easeProp = TRANSITION_PROP + TIMING_KEY;
temporaryStyles.push([easeProp, easeVal]);
node.style[easeProp] = easeVal;
}
if (flags.hasAnimations) {
easeProp = ANIMATION_PROP + TIMING_KEY;
temporaryStyles.push([easeProp, easeVal]);
node.style[easeProp] = easeVal;
}
}
if (timings.transitionDuration) {
events.push(TRANSITIONEND_EVENT);
}
if (timings.animationDuration) {
events.push(ANIMATIONEND_EVENT);
}
startTime = Date.now();
element.on(events.join(' '), onAnimationProgress);
$timeout(onAnimationExpired, maxDelayTime + CLOSING_TIME_BUFFER * maxDurationTime, false);
applyAnimationToStyles(element, options);
}
function onAnimationExpired() {
// although an expired animation is a failed animation, getting to
// this outcome is very easy if the CSS code screws up. Therefore we
// should still continue normally as if the animation completed correctly.
close();
}
function onAnimationProgress(event) {
event.stopPropagation();
var ev = event.originalEvent || event;
var timeStamp = ev.$manualTimeStamp || ev.timeStamp || Date.now();
/* Firefox (or possibly just Gecko) likes to not round values up
* when a ms measurement is used for the animation */
var elapsedTime = parseFloat(ev.elapsedTime.toFixed(ELAPSED_TIME_MAX_DECIMAL_PLACES));
/* $manualTimeStamp is a mocked timeStamp value which is set
* within browserTrigger(). This is only here so that tests can
* mock animations properly. Real events fallback to event.timeStamp,
* or, if they don't, then a timeStamp is automatically created for them.
* We're checking to see if the timeStamp surpasses the expected delay,
* but we're using elapsedTime instead of the timeStamp on the 2nd
* pre-condition since animations sometimes close off early */
if (Math.max(timeStamp - startTime, 0) >= maxDelayTime && elapsedTime >= maxDuration) {
// we set this flag to ensure that if the transition is paused then, when resumed,
// the animation will automatically close itself since transitions cannot be paused.
animationCompleted = true;
close();
}
}
}
}
}];
}];
var $$AnimateCssDriverProvider = ['$$animationProvider', function($$animationProvider) {
$$animationProvider.drivers.push('$$animateCssDriver');
var NG_ANIMATE_SHIM_CLASS_NAME = 'ng-animate-shim';
var NG_ANIMATE_ANCHOR_CLASS_NAME = 'ng-anchor';
var NG_OUT_ANCHOR_CLASS_NAME = 'ng-anchor-out';
var NG_IN_ANCHOR_CLASS_NAME = 'ng-anchor-in';
this.$get = ['$animateCss', '$rootScope', '$$AnimateRunner', '$rootElement', '$$body', '$sniffer', '$$jqLite',
function($animateCss, $rootScope, $$AnimateRunner, $rootElement, $$body, $sniffer, $$jqLite) {
// only browsers that support these properties can render animations
if (!$sniffer.animations && !$sniffer.transitions) return noop;
var bodyNode = getDomNode($$body);
var rootNode = getDomNode($rootElement);
var rootBodyElement = jqLite(bodyNode.parentNode === rootNode ? bodyNode : rootNode);
var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);
return function initDriverFn(animationDetails, onBeforeClassesAppliedCb) {
return animationDetails.from && animationDetails.to
? prepareFromToAnchorAnimation(animationDetails.from,
animationDetails.to,
animationDetails.classes,
animationDetails.anchors)
: prepareRegularAnimation(animationDetails, onBeforeClassesAppliedCb);
};
function filterCssClasses(classes) {
//remove all the `ng-` stuff
return classes.replace(/\bng-\S+\b/g, '');
}
function getUniqueValues(a, b) {
if (isString(a)) a = a.split(' ');
if (isString(b)) b = b.split(' ');
return a.filter(function(val) {
return b.indexOf(val) === -1;
}).join(' ');
}
function prepareAnchoredAnimation(classes, outAnchor, inAnchor) {
var clone = jqLite(getDomNode(outAnchor).cloneNode(true));
var startingClasses = filterCssClasses(getClassVal(clone));
outAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);
inAnchor.addClass(NG_ANIMATE_SHIM_CLASS_NAME);
clone.addClass(NG_ANIMATE_ANCHOR_CLASS_NAME);
rootBodyElement.append(clone);
var animatorIn, animatorOut = prepareOutAnimation();
// the user may not end up using the `out` animation and
// only making use of the `in` animation or vice-versa.
// In either case we should allow this and not assume the
// animation is over unless both animations are not used.
if (!animatorOut) {
animatorIn = prepareInAnimation();
if (!animatorIn) {
return end();
}
}
var startingAnimator = animatorOut || animatorIn;
return {
start: function() {
var runner;
var currentAnimation = startingAnimator.start();
currentAnimation.done(function() {
currentAnimation = null;
if (!animatorIn) {
animatorIn = prepareInAnimation();
if (animatorIn) {
currentAnimation = animatorIn.start();
currentAnimation.done(function() {
currentAnimation = null;
end();
runner.complete();
});
return currentAnimation;
}
}
// in the event that there is no `in` animation
end();
runner.complete();
});
runner = new $$AnimateRunner({
end: endFn,
cancel: endFn
});
return runner;
function endFn() {
if (currentAnimation) {
currentAnimation.end();
}
}
}
};
function calculateAnchorStyles(anchor) {
var styles = {};
var coords = getDomNode(anchor).getBoundingClientRect();
// we iterate directly since safari messes up and doesn't return
// all the keys for the coods object when iterated
forEach(['width','height','top','left'], function(key) {
var value = coords[key];
switch (key) {
case 'top':
value += bodyNode.scrollTop;
break;
case 'left':
value += bodyNode.scrollLeft;
break;
}
styles[key] = Math.floor(value) + 'px';
});
return styles;
}
function prepareOutAnimation() {
var animator = $animateCss(clone, {
addClass: NG_OUT_ANCHOR_CLASS_NAME,
delay: true,
from: calculateAnchorStyles(outAnchor)
});
// read the comment within `prepareRegularAnimation` to understand
// why this check is necessary
return animator.$$willAnimate ? animator : null;
}
function getClassVal(element) {
return element.attr('class') || '';
}
function prepareInAnimation() {
var endingClasses = filterCssClasses(getClassVal(inAnchor));
var toAdd = getUniqueValues(endingClasses, startingClasses);
var toRemove = getUniqueValues(startingClasses, endingClasses);
var animator = $animateCss(clone, {
to: calculateAnchorStyles(inAnchor),
addClass: NG_IN_ANCHOR_CLASS_NAME + ' ' + toAdd,
removeClass: NG_OUT_ANCHOR_CLASS_NAME + ' ' + toRemove,
delay: true
});
// read the comment within `prepareRegularAnimation` to understand
// why this check is necessary
return animator.$$willAnimate ? animator : null;
}
function end() {
clone.remove();
outAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);
inAnchor.removeClass(NG_ANIMATE_SHIM_CLASS_NAME);
}
}
function prepareFromToAnchorAnimation(from, to, classes, anchors) {
var fromAnimation = prepareRegularAnimation(from, noop);
var toAnimation = prepareRegularAnimation(to, noop);
var anchorAnimations = [];
forEach(anchors, function(anchor) {
var outElement = anchor['out'];
var inElement = anchor['in'];
var animator = prepareAnchoredAnimation(classes, outElement, inElement);
if (animator) {
anchorAnimations.push(animator);
}
});
// no point in doing anything when there are no elements to animate
if (!fromAnimation && !toAnimation && anchorAnimations.length === 0) return;
return {
start: function() {
var animationRunners = [];
if (fromAnimation) {
animationRunners.push(fromAnimation.start());
}
if (toAnimation) {
animationRunners.push(toAnimation.start());
}
forEach(anchorAnimations, function(animation) {
animationRunners.push(animation.start());
});
var runner = new $$AnimateRunner({
end: endFn,
cancel: endFn // CSS-driven animations cannot be cancelled, only ended
});
$$AnimateRunner.all(animationRunners, function(status) {
runner.complete(status);
});
return runner;
function endFn() {
forEach(animationRunners, function(runner) {
runner.end();
});
}
}
};
}
function prepareRegularAnimation(animationDetails, onBeforeClassesAppliedCb) {
var element = animationDetails.element;
var options = animationDetails.options || {};
// since the ng-EVENT, class-ADD and class-REMOVE classes are applied inside
// of the animateQueue pre and postDigest stages then there is no need to add
// then them here as well.
options.$$skipPreparationClasses = true;
// during the pre/post digest stages inside of animateQueue we also performed
// the blocking (transition:-9999s) so there is no point in doing that again.
options.skipBlocking = true;
if (animationDetails.structural) {
options.event = animationDetails.event;
// we special case the leave animation since we want to ensure that
// the element is removed as soon as the animation is over. Otherwise
// a flicker might appear or the element may not be removed at all
if (animationDetails.event === 'leave') {
options.onDone = options.domOperation;
}
}
// we apply the classes right away since the pre-digest took care of the
// preparation classes.
onBeforeClassesAppliedCb(element);
applyAnimationClasses(element, options);
// We assign the preparationClasses as the actual animation event since
// the internals of $animateCss will just suffix the event token values
// with `-active` to trigger the animation.
if (options.preparationClasses) {
options.event = concatWithSpace(options.event, options.preparationClasses);
}
var animator = $animateCss(element, options);
// the driver lookup code inside of $$animation attempts to spawn a
// driver one by one until a driver returns a.$$willAnimate animator object.
// $animateCss will always return an object, however, it will pass in
// a flag as a hint as to whether an animation was detected or not
return animator.$$willAnimate ? animator : null;
}
}];
}];
// TODO(matsko): use caching here to speed things up for detection
// TODO(matsko): add documentation
// by the time...
var $$AnimateJsProvider = ['$animateProvider', function($animateProvider) {
this.$get = ['$injector', '$$AnimateRunner', '$$rAFMutex', '$$jqLite',
function($injector, $$AnimateRunner, $$rAFMutex, $$jqLite) {
var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);
// $animateJs(element, 'enter');
return function(element, event, classes, options) {
// the `classes` argument is optional and if it is not used
// then the classes will be resolved from the element's className
// property as well as options.addClass/options.removeClass.
if (arguments.length === 3 && isObject(classes)) {
options = classes;
classes = null;
}
options = prepareAnimationOptions(options);
if (!classes) {
classes = element.attr('class') || '';
if (options.addClass) {
classes += ' ' + options.addClass;
}
if (options.removeClass) {
classes += ' ' + options.removeClass;
}
}
var classesToAdd = options.addClass;
var classesToRemove = options.removeClass;
// the lookupAnimations function returns a series of animation objects that are
// matched up with one or more of the CSS classes. These animation objects are
// defined via the module.animation factory function. If nothing is detected then
// we don't return anything which then makes $animation query the next driver.
var animations = lookupAnimations(classes);
var before, after;
if (animations.length) {
var afterFn, beforeFn;
if (event == 'leave') {
beforeFn = 'leave';
afterFn = 'afterLeave'; // TODO(matsko): get rid of this
} else {
beforeFn = 'before' + event.charAt(0).toUpperCase() + event.substr(1);
afterFn = event;
}
if (event !== 'enter' && event !== 'move') {
before = packageAnimations(element, event, options, animations, beforeFn);
}
after = packageAnimations(element, event, options, animations, afterFn);
}
// no matching animations
if (!before && !after) return;
function applyOptions() {
options.domOperation();
applyAnimationClasses(element, options);
}
return {
start: function() {
var closeActiveAnimations;
var chain = [];
if (before) {
chain.push(function(fn) {
closeActiveAnimations = before(fn);
});
}
if (chain.length) {
chain.push(function(fn) {
applyOptions();
fn(true);
});
} else {
applyOptions();
}
if (after) {
chain.push(function(fn) {
closeActiveAnimations = after(fn);
});
}
var animationClosed = false;
var runner = new $$AnimateRunner({
end: function() {
endAnimations();
},
cancel: function() {
endAnimations(true);
}
});
$$AnimateRunner.chain(chain, onComplete);
return runner;
function onComplete(success) {
animationClosed = true;
applyOptions();
applyAnimationStyles(element, options);
runner.complete(success);
}
function endAnimations(cancelled) {
if (!animationClosed) {
(closeActiveAnimations || noop)(cancelled);
onComplete(cancelled);
}
}
}
};
function executeAnimationFn(fn, element, event, options, onDone) {
var args;
switch (event) {
case 'animate':
args = [element, options.from, options.to, onDone];
break;
case 'setClass':
args = [element, classesToAdd, classesToRemove, onDone];
break;
case 'addClass':
args = [element, classesToAdd, onDone];
break;
case 'removeClass':
args = [element, classesToRemove, onDone];
break;
default:
args = [element, onDone];
break;
}
args.push(options);
var value = fn.apply(fn, args);
if (value) {
if (isFunction(value.start)) {
value = value.start();
}
if (value instanceof $$AnimateRunner) {
value.done(onDone);
} else if (isFunction(value)) {
// optional onEnd / onCancel callback
return value;
}
}
return noop;
}
function groupEventedAnimations(element, event, options, animations, fnName) {
var operations = [];
forEach(animations, function(ani) {
var animation = ani[fnName];
if (!animation) return;
// note that all of these animations will run in parallel
operations.push(function() {
var runner;
var endProgressCb;
var resolved = false;
var onAnimationComplete = function(rejected) {
if (!resolved) {
resolved = true;
(endProgressCb || noop)(rejected);
runner.complete(!rejected);
}
};
runner = new $$AnimateRunner({
end: function() {
onAnimationComplete();
},
cancel: function() {
onAnimationComplete(true);
}
});
endProgressCb = executeAnimationFn(animation, element, event, options, function(result) {
var cancelled = result === false;
onAnimationComplete(cancelled);
});
return runner;
});
});
return operations;
}
function packageAnimations(element, event, options, animations, fnName) {
var operations = groupEventedAnimations(element, event, options, animations, fnName);
if (operations.length === 0) {
var a,b;
if (fnName === 'beforeSetClass') {
a = groupEventedAnimations(element, 'removeClass', options, animations, 'beforeRemoveClass');
b = groupEventedAnimations(element, 'addClass', options, animations, 'beforeAddClass');
} else if (fnName === 'setClass') {
a = groupEventedAnimations(element, 'removeClass', options, animations, 'removeClass');
b = groupEventedAnimations(element, 'addClass', options, animations, 'addClass');
}
if (a) {
operations = operations.concat(a);
}
if (b) {
operations = operations.concat(b);
}
}
if (operations.length === 0) return;
// TODO(matsko): add documentation
return function startAnimation(callback) {
var runners = [];
if (operations.length) {
forEach(operations, function(animateFn) {
runners.push(animateFn());
});
}
runners.length ? $$AnimateRunner.all(runners, callback) : callback();
return function endFn(reject) {
forEach(runners, function(runner) {
reject ? runner.cancel() : runner.end();
});
};
};
}
};
function lookupAnimations(classes) {
classes = isArray(classes) ? classes : classes.split(' ');
var matches = [], flagMap = {};
for (var i=0; i < classes.length; i++) {
var klass = classes[i],
animationFactory = $animateProvider.$$registeredAnimations[klass];
if (animationFactory && !flagMap[klass]) {
matches.push($injector.get(animationFactory));
flagMap[klass] = true;
}
}
return matches;
}
}];
}];
var $$AnimateJsDriverProvider = ['$$animationProvider', function($$animationProvider) {
$$animationProvider.drivers.push('$$animateJsDriver');
this.$get = ['$$animateJs', '$$AnimateRunner', function($$animateJs, $$AnimateRunner) {
return function initDriverFn(animationDetails) {
if (animationDetails.from && animationDetails.to) {
var fromAnimation = prepareAnimation(animationDetails.from);
var toAnimation = prepareAnimation(animationDetails.to);
if (!fromAnimation && !toAnimation) return;
return {
start: function() {
var animationRunners = [];
if (fromAnimation) {
animationRunners.push(fromAnimation.start());
}
if (toAnimation) {
animationRunners.push(toAnimation.start());
}
$$AnimateRunner.all(animationRunners, done);
var runner = new $$AnimateRunner({
end: endFnFactory(),
cancel: endFnFactory()
});
return runner;
function endFnFactory() {
return function() {
forEach(animationRunners, function(runner) {
// at this point we cannot cancel animations for groups just yet. 1.5+
runner.end();
});
};
}
function done(status) {
runner.complete(status);
}
}
};
} else {
return prepareAnimation(animationDetails);
}
};
function prepareAnimation(animationDetails) {
// TODO(matsko): make sure to check for grouped animations and delegate down to normal animations
var element = animationDetails.element;
var event = animationDetails.event;
var options = animationDetails.options;
var classes = animationDetails.classes;
return $$animateJs(element, event, classes, options);
}
}];
}];
var NG_ANIMATE_ATTR_NAME = 'data-ng-animate';
var NG_ANIMATE_PIN_DATA = '$ngAnimatePin';
var $$AnimateQueueProvider = ['$animateProvider', function($animateProvider) {
var PRE_DIGEST_STATE = 1;
var RUNNING_STATE = 2;
var rules = this.rules = {
skip: [],
cancel: [],
join: []
};
function isAllowed(ruleType, element, currentAnimation, previousAnimation) {
return rules[ruleType].some(function(fn) {
return fn(element, currentAnimation, previousAnimation);
});
}
function hasAnimationClasses(options, and) {
options = options || {};
var a = (options.addClass || '').length > 0;
var b = (options.removeClass || '').length > 0;
return and ? a && b : a || b;
}
rules.join.push(function(element, newAnimation, currentAnimation) {
// if the new animation is class-based then we can just tack that on
return !newAnimation.structural && hasAnimationClasses(newAnimation.options);
});
rules.skip.push(function(element, newAnimation, currentAnimation) {
// there is no need to animate anything if no classes are being added and
// there is no structural animation that will be triggered
return !newAnimation.structural && !hasAnimationClasses(newAnimation.options);
});
rules.skip.push(function(element, newAnimation, currentAnimation) {
// why should we trigger a new structural animation if the element will
// be removed from the DOM anyway?
return currentAnimation.event == 'leave' && newAnimation.structural;
});
rules.skip.push(function(element, newAnimation, currentAnimation) {
// if there is an ongoing current animation then don't even bother running the class-based animation
return currentAnimation.structural && currentAnimation.state === RUNNING_STATE && !newAnimation.structural;
});
rules.cancel.push(function(element, newAnimation, currentAnimation) {
// there can never be two structural animations running at the same time
return currentAnimation.structural && newAnimation.structural;
});
rules.cancel.push(function(element, newAnimation, currentAnimation) {
// if the previous animation is already running, but the new animation will
// be triggered, but the new animation is structural
return currentAnimation.state === RUNNING_STATE && newAnimation.structural;
});
rules.cancel.push(function(element, newAnimation, currentAnimation) {
var nO = newAnimation.options;
var cO = currentAnimation.options;
// if the exact same CSS class is added/removed then it's safe to cancel it
return (nO.addClass && nO.addClass === cO.removeClass) || (nO.removeClass && nO.removeClass === cO.addClass);
});
this.$get = ['$$rAF', '$rootScope', '$rootElement', '$document', '$$body', '$$HashMap',
'$$animation', '$$AnimateRunner', '$templateRequest', '$$jqLite', '$$forceReflow',
function($$rAF, $rootScope, $rootElement, $document, $$body, $$HashMap,
$$animation, $$AnimateRunner, $templateRequest, $$jqLite, $$forceReflow) {
var activeAnimationsLookup = new $$HashMap();
var disabledElementsLookup = new $$HashMap();
var animationsEnabled = null;
// Wait until all directive and route-related templates are downloaded and
// compiled. The $templateRequest.totalPendingRequests variable keeps track of
// all of the remote templates being currently downloaded. If there are no
// templates currently downloading then the watcher will still fire anyway.
var deregisterWatch = $rootScope.$watch(
function() { return $templateRequest.totalPendingRequests === 0; },
function(isEmpty) {
if (!isEmpty) return;
deregisterWatch();
// Now that all templates have been downloaded, $animate will wait until
// the post digest queue is empty before enabling animations. By having two
// calls to $postDigest calls we can ensure that the flag is enabled at the
// very end of the post digest queue. Since all of the animations in $animate
// use $postDigest, it's important that the code below executes at the end.
// This basically means that the page is fully downloaded and compiled before
// any animations are triggered.
$rootScope.$$postDigest(function() {
$rootScope.$$postDigest(function() {
// we check for null directly in the event that the application already called
// .enabled() with whatever arguments that it provided it with
if (animationsEnabled === null) {
animationsEnabled = true;
}
});
});
}
);
var callbackRegistry = {};
// remember that the classNameFilter is set during the provider/config
// stage therefore we can optimize here and setup a helper function
var classNameFilter = $animateProvider.classNameFilter();
var isAnimatableClassName = !classNameFilter
? function() { return true; }
: function(className) {
return classNameFilter.test(className);
};
var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);
function normalizeAnimationOptions(element, options) {
return mergeAnimationOptions(element, options, {});
}
function findCallbacks(element, event) {
var targetNode = getDomNode(element);
var matches = [];
var entries = callbackRegistry[event];
if (entries) {
forEach(entries, function(entry) {
if (entry.node.contains(targetNode)) {
matches.push(entry.callback);
}
});
}
return matches;
}
function triggerCallback(event, element, phase, data) {
$$rAF(function() {
forEach(findCallbacks(element, event), function(callback) {
callback(element, phase, data);
});
});
}
return {
on: function(event, container, callback) {
var node = extractElementNode(container);
callbackRegistry[event] = callbackRegistry[event] || [];
callbackRegistry[event].push({
node: node,
callback: callback
});
},
off: function(event, container, callback) {
var entries = callbackRegistry[event];
if (!entries) return;
callbackRegistry[event] = arguments.length === 1
? null
: filterFromRegistry(entries, container, callback);
function filterFromRegistry(list, matchContainer, matchCallback) {
var containerNode = extractElementNode(matchContainer);
return list.filter(function(entry) {
var isMatch = entry.node === containerNode &&
(!matchCallback || entry.callback === matchCallback);
return !isMatch;
});
}
},
pin: function(element, parentElement) {
assertArg(isElement(element), 'element', 'not an element');
assertArg(isElement(parentElement), 'parentElement', 'not an element');
element.data(NG_ANIMATE_PIN_DATA, parentElement);
},
push: function(element, event, options, domOperation) {
options = options || {};
options.domOperation = domOperation;
return queueAnimation(element, event, options);
},
// this method has four signatures:
// () - global getter
// (bool) - global setter
// (element) - element getter
// (element, bool) - element setter
enabled: function(element, bool) {
var argCount = arguments.length;
if (argCount === 0) {
// () - Global getter
bool = !!animationsEnabled;
} else {
var hasElement = isElement(element);
if (!hasElement) {
// (bool) - Global setter
bool = animationsEnabled = !!element;
} else {
var node = getDomNode(element);
var recordExists = disabledElementsLookup.get(node);
if (argCount === 1) {
// (element) - Element getter
bool = !recordExists;
} else {
// (element, bool) - Element setter
bool = !!bool;
if (!bool) {
disabledElementsLookup.put(node, true);
} else if (recordExists) {
disabledElementsLookup.remove(node);
}
}
}
}
return bool;
}
};
function queueAnimation(element, event, options) {
var node, parent;
element = stripCommentsFromElement(element);
if (element) {
node = getDomNode(element);
parent = element.parent();
}
options = prepareAnimationOptions(options);
// we create a fake runner with a working promise.
// These methods will become available after the digest has passed
var runner = new $$AnimateRunner();
if (isArray(options.addClass)) {
options.addClass = options.addClass.join(' ');
}
if (options.addClass && !isString(options.addClass)) {
options.addClass = null;
}
if (isArray(options.removeClass)) {
options.removeClass = options.removeClass.join(' ');
}
if (options.removeClass && !isString(options.removeClass)) {
options.removeClass = null;
}
if (options.from && !isObject(options.from)) {
options.from = null;
}
if (options.to && !isObject(options.to)) {
options.to = null;
}
// there are situations where a directive issues an animation for
// a jqLite wrapper that contains only comment nodes... If this
// happens then there is no way we can perform an animation
if (!node) {
close();
return runner;
}
var className = [node.className, options.addClass, options.removeClass].join(' ');
if (!isAnimatableClassName(className)) {
close();
return runner;
}
var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;
// this is a hard disable of all animations for the application or on
// the element itself, therefore there is no need to continue further
// past this point if not enabled
var skipAnimations = !animationsEnabled || disabledElementsLookup.get(node);
var existingAnimation = (!skipAnimations && activeAnimationsLookup.get(node)) || {};
var hasExistingAnimation = !!existingAnimation.state;
// there is no point in traversing the same collection of parent ancestors if a followup
// animation will be run on the same element that already did all that checking work
if (!skipAnimations && (!hasExistingAnimation || existingAnimation.state != PRE_DIGEST_STATE)) {
skipAnimations = !areAnimationsAllowed(element, parent, event);
}
if (skipAnimations) {
close();
return runner;
}
if (isStructural) {
closeChildAnimations(element);
}
var newAnimation = {
structural: isStructural,
element: element,
event: event,
close: close,
options: options,
runner: runner
};
if (hasExistingAnimation) {
var skipAnimationFlag = isAllowed('skip', element, newAnimation, existingAnimation);
if (skipAnimationFlag) {
if (existingAnimation.state === RUNNING_STATE) {
close();
return runner;
} else {
mergeAnimationOptions(element, existingAnimation.options, options);
return existingAnimation.runner;
}
}
var cancelAnimationFlag = isAllowed('cancel', element, newAnimation, existingAnimation);
if (cancelAnimationFlag) {
if (existingAnimation.state === RUNNING_STATE) {
// this will end the animation right away and it is safe
// to do so since the animation is already running and the
// runner callback code will run in async
existingAnimation.runner.end();
} else if (existingAnimation.structural) {
// this means that the animation is queued into a digest, but
// hasn't started yet. Therefore it is safe to run the close
// method which will call the runner methods in async.
existingAnimation.close();
} else {
// this will merge the new animation options into existing animation options
mergeAnimationOptions(element, existingAnimation.options, newAnimation.options);
return existingAnimation.runner;
}
} else {
// a joined animation means that this animation will take over the existing one
// so an example would involve a leave animation taking over an enter. Then when
// the postDigest kicks in the enter will be ignored.
var joinAnimationFlag = isAllowed('join', element, newAnimation, existingAnimation);
if (joinAnimationFlag) {
if (existingAnimation.state === RUNNING_STATE) {
normalizeAnimationOptions(element, options);
} else {
applyGeneratedPreparationClasses(element, isStructural ? event : null, options);
event = newAnimation.event = existingAnimation.event;
options = mergeAnimationOptions(element, existingAnimation.options, newAnimation.options);
//we return the same runner since only the option values of this animation will
//be fed into the `existingAnimation`.
return existingAnimation.runner;
}
}
}
} else {
// normalization in this case means that it removes redundant CSS classes that
// already exist (addClass) or do not exist (removeClass) on the element
normalizeAnimationOptions(element, options);
}
// when the options are merged and cleaned up we may end up not having to do
// an animation at all, therefore we should check this before issuing a post
// digest callback. Structural animations will always run no matter what.
var isValidAnimation = newAnimation.structural;
if (!isValidAnimation) {
// animate (from/to) can be quickly checked first, otherwise we check if any classes are present
isValidAnimation = (newAnimation.event === 'animate' && Object.keys(newAnimation.options.to || {}).length > 0)
|| hasAnimationClasses(newAnimation.options);
}
if (!isValidAnimation) {
close();
clearElementAnimationState(element);
return runner;
}
applyGeneratedPreparationClasses(element, isStructural ? event : null, options);
blockTransitions(node, SAFE_FAST_FORWARD_DURATION_VALUE);
// the counter keeps track of cancelled animations
var counter = (existingAnimation.counter || 0) + 1;
newAnimation.counter = counter;
markElementAnimationState(element, PRE_DIGEST_STATE, newAnimation);
$rootScope.$$postDigest(function() {
var animationDetails = activeAnimationsLookup.get(node);
var animationCancelled = !animationDetails;
animationDetails = animationDetails || {};
// if addClass/removeClass is called before something like enter then the
// registered parent element may not be present. The code below will ensure
// that a final value for parent element is obtained
var parentElement = element.parent() || [];
// animate/structural/class-based animations all have requirements. Otherwise there
// is no point in performing an animation. The parent node must also be set.
var isValidAnimation = parentElement.length > 0
&& (animationDetails.event === 'animate'
|| animationDetails.structural
|| hasAnimationClasses(animationDetails.options));
// this means that the previous animation was cancelled
// even if the follow-up animation is the same event
if (animationCancelled || animationDetails.counter !== counter || !isValidAnimation) {
// if another animation did not take over then we need
// to make sure that the domOperation and options are
// handled accordingly
if (animationCancelled) {
applyAnimationClasses(element, options);
applyAnimationStyles(element, options);
}
// if the event changed from something like enter to leave then we do
// it, otherwise if it's the same then the end result will be the same too
if (animationCancelled || (isStructural && animationDetails.event !== event)) {
options.domOperation();
runner.end();
}
// in the event that the element animation was not cancelled or a follow-up animation
// isn't allowed to animate from here then we need to clear the state of the element
// so that any future animations won't read the expired animation data.
if (!isValidAnimation) {
clearElementAnimationState(element);
}
return;
}
// this combined multiple class to addClass / removeClass into a setClass event
// so long as a structural event did not take over the animation
event = !animationDetails.structural && hasAnimationClasses(animationDetails.options, true)
? 'setClass'
: animationDetails.event;
markElementAnimationState(element, RUNNING_STATE);
var realRunner = $$animation(element, event, animationDetails.options, function(e) {
$$forceReflow();
blockTransitions(getDomNode(e), false);
});
realRunner.done(function(status) {
close(!status);
var animationDetails = activeAnimationsLookup.get(node);
if (animationDetails && animationDetails.counter === counter) {
clearElementAnimationState(getDomNode(element));
}
notifyProgress(runner, event, 'close', {});
});
// this will update the runner's flow-control events based on
// the `realRunner` object.
runner.setHost(realRunner);
notifyProgress(runner, event, 'start', {});
});
return runner;
function notifyProgress(runner, event, phase, data) {
triggerCallback(event, element, phase, data);
runner.progress(event, phase, data);
}
function close(reject) { // jshint ignore:line
clearGeneratedClasses(element, options);
applyAnimationClasses(element, options);
applyAnimationStyles(element, options);
options.domOperation();
runner.complete(!reject);
}
}
function closeChildAnimations(element) {
var node = getDomNode(element);
var children = node.querySelectorAll('[' + NG_ANIMATE_ATTR_NAME + ']');
forEach(children, function(child) {
var state = parseInt(child.getAttribute(NG_ANIMATE_ATTR_NAME));
var animationDetails = activeAnimationsLookup.get(child);
switch (state) {
case RUNNING_STATE:
animationDetails.runner.end();
/* falls through */
case PRE_DIGEST_STATE:
if (animationDetails) {
activeAnimationsLookup.remove(child);
}
break;
}
});
}
function clearElementAnimationState(element) {
var node = getDomNode(element);
node.removeAttribute(NG_ANIMATE_ATTR_NAME);
activeAnimationsLookup.remove(node);
}
function isMatchingElement(nodeOrElmA, nodeOrElmB) {
return getDomNode(nodeOrElmA) === getDomNode(nodeOrElmB);
}
function areAnimationsAllowed(element, parentElement, event) {
var bodyElementDetected = isMatchingElement(element, $$body) || element[0].nodeName === 'HTML';
var rootElementDetected = isMatchingElement(element, $rootElement);
var parentAnimationDetected = false;
var animateChildren;
var parentHost = element.data(NG_ANIMATE_PIN_DATA);
if (parentHost) {
parentElement = parentHost;
}
while (parentElement && parentElement.length) {
if (!rootElementDetected) {
// angular doesn't want to attempt to animate elements outside of the application
// therefore we need to ensure that the rootElement is an ancestor of the current element
rootElementDetected = isMatchingElement(parentElement, $rootElement);
}
var parentNode = parentElement[0];
if (parentNode.nodeType !== ELEMENT_NODE) {
// no point in inspecting the #document element
break;
}
var details = activeAnimationsLookup.get(parentNode) || {};
// either an enter, leave or move animation will commence
// therefore we can't allow any animations to take place
// but if a parent animation is class-based then that's ok
if (!parentAnimationDetected) {
parentAnimationDetected = details.structural || disabledElementsLookup.get(parentNode);
}
if (isUndefined(animateChildren) || animateChildren === true) {
var value = parentElement.data(NG_ANIMATE_CHILDREN_DATA);
if (isDefined(value)) {
animateChildren = value;
}
}
// there is no need to continue traversing at this point
if (parentAnimationDetected && animateChildren === false) break;
if (!rootElementDetected) {
// angular doesn't want to attempt to animate elements outside of the application
// therefore we need to ensure that the rootElement is an ancestor of the current element
rootElementDetected = isMatchingElement(parentElement, $rootElement);
if (!rootElementDetected) {
parentHost = parentElement.data(NG_ANIMATE_PIN_DATA);
if (parentHost) {
parentElement = parentHost;
}
}
}
if (!bodyElementDetected) {
// we also need to ensure that the element is or will be apart of the body element
// otherwise it is pointless to even issue an animation to be rendered
bodyElementDetected = isMatchingElement(parentElement, $$body);
}
parentElement = parentElement.parent();
}
var allowAnimation = !parentAnimationDetected || animateChildren;
return allowAnimation && rootElementDetected && bodyElementDetected;
}
function markElementAnimationState(element, state, details) {
details = details || {};
details.state = state;
var node = getDomNode(element);
node.setAttribute(NG_ANIMATE_ATTR_NAME, state);
var oldValue = activeAnimationsLookup.get(node);
var newValue = oldValue
? extend(oldValue, details)
: details;
activeAnimationsLookup.put(node, newValue);
}
}];
}];
var $$rAFMutexFactory = ['$$rAF', function($$rAF) {
return function() {
var passed = false;
$$rAF(function() {
passed = true;
});
return function(fn) {
passed ? fn() : $$rAF(fn);
};
};
}];
var $$AnimateRunnerFactory = ['$q', '$$rAFMutex', function($q, $$rAFMutex) {
var INITIAL_STATE = 0;
var DONE_PENDING_STATE = 1;
var DONE_COMPLETE_STATE = 2;
AnimateRunner.chain = function(chain, callback) {
var index = 0;
next();
function next() {
if (index === chain.length) {
callback(true);
return;
}
chain[index](function(response) {
if (response === false) {
callback(false);
return;
}
index++;
next();
});
}
};
AnimateRunner.all = function(runners, callback) {
var count = 0;
var status = true;
forEach(runners, function(runner) {
runner.done(onProgress);
});
function onProgress(response) {
status = status && response;
if (++count === runners.length) {
callback(status);
}
}
};
function AnimateRunner(host) {
this.setHost(host);
this._doneCallbacks = [];
this._runInAnimationFrame = $$rAFMutex();
this._state = 0;
}
AnimateRunner.prototype = {
setHost: function(host) {
this.host = host || {};
},
done: function(fn) {
if (this._state === DONE_COMPLETE_STATE) {
fn();
} else {
this._doneCallbacks.push(fn);
}
},
progress: noop,
getPromise: function() {
if (!this.promise) {
var self = this;
this.promise = $q(function(resolve, reject) {
self.done(function(status) {
status === false ? reject() : resolve();
});
});
}
return this.promise;
},
then: function(resolveHandler, rejectHandler) {
return this.getPromise().then(resolveHandler, rejectHandler);
},
'catch': function(handler) {
return this.getPromise()['catch'](handler);
},
'finally': function(handler) {
return this.getPromise()['finally'](handler);
},
pause: function() {
if (this.host.pause) {
this.host.pause();
}
},
resume: function() {
if (this.host.resume) {
this.host.resume();
}
},
end: function() {
if (this.host.end) {
this.host.end();
}
this._resolve(true);
},
cancel: function() {
if (this.host.cancel) {
this.host.cancel();
}
this._resolve(false);
},
complete: function(response) {
var self = this;
if (self._state === INITIAL_STATE) {
self._state = DONE_PENDING_STATE;
self._runInAnimationFrame(function() {
self._resolve(response);
});
}
},
_resolve: function(response) {
if (this._state !== DONE_COMPLETE_STATE) {
forEach(this._doneCallbacks, function(fn) {
fn(response);
});
this._doneCallbacks.length = 0;
this._state = DONE_COMPLETE_STATE;
}
}
};
return AnimateRunner;
}];
var $$AnimationProvider = ['$animateProvider', function($animateProvider) {
var NG_ANIMATE_REF_ATTR = 'ng-animate-ref';
var drivers = this.drivers = [];
var RUNNER_STORAGE_KEY = '$$animationRunner';
function setRunner(element, runner) {
element.data(RUNNER_STORAGE_KEY, runner);
}
function removeRunner(element) {
element.removeData(RUNNER_STORAGE_KEY);
}
function getRunner(element) {
return element.data(RUNNER_STORAGE_KEY);
}
this.$get = ['$$jqLite', '$rootScope', '$injector', '$$AnimateRunner', '$$HashMap',
function($$jqLite, $rootScope, $injector, $$AnimateRunner, $$HashMap) {
var animationQueue = [];
var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);
function sortAnimations(animations) {
var tree = { children: [] };
var i, lookup = new $$HashMap();
// this is done first beforehand so that the hashmap
// is filled with a list of the elements that will be animated
for (i = 0; i < animations.length; i++) {
var animation = animations[i];
lookup.put(animation.domNode, animations[i] = {
domNode: animation.domNode,
fn: animation.fn,
children: []
});
}
for (i = 0; i < animations.length; i++) {
processNode(animations[i]);
}
return flatten(tree);
function processNode(entry) {
if (entry.processed) return entry;
entry.processed = true;
var elementNode = entry.domNode;
var parentNode = elementNode.parentNode;
lookup.put(elementNode, entry);
var parentEntry;
while (parentNode) {
parentEntry = lookup.get(parentNode);
if (parentEntry) {
if (!parentEntry.processed) {
parentEntry = processNode(parentEntry);
}
break;
}
parentNode = parentNode.parentNode;
}
(parentEntry || tree).children.push(entry);
return entry;
}
function flatten(tree) {
var result = [];
var queue = [];
var i;
for (i = 0; i < tree.children.length; i++) {
queue.push(tree.children[i]);
}
var remainingLevelEntries = queue.length;
var nextLevelEntries = 0;
var row = [];
for (i = 0; i < queue.length; i++) {
var entry = queue[i];
if (remainingLevelEntries <= 0) {
remainingLevelEntries = nextLevelEntries;
nextLevelEntries = 0;
result = result.concat(row);
row = [];
}
row.push(entry.fn);
forEach(entry.children, function(childEntry) {
nextLevelEntries++;
queue.push(childEntry);
});
remainingLevelEntries--;
}
if (row.length) {
result = result.concat(row);
}
return result;
}
}
// TODO(matsko): document the signature in a better way
return function(element, event, options, onBeforeClassesAppliedCb) {
options = prepareAnimationOptions(options);
var isStructural = ['enter', 'move', 'leave'].indexOf(event) >= 0;
// there is no animation at the current moment, however
// these runner methods will get later updated with the
// methods leading into the driver's end/cancel methods
// for now they just stop the animation from starting
var runner = new $$AnimateRunner({
end: function() { close(); },
cancel: function() { close(true); }
});
if (!drivers.length) {
close();
return runner;
}
setRunner(element, runner);
var classes = mergeClasses(element.attr('class'), mergeClasses(options.addClass, options.removeClass));
var tempClasses = options.tempClasses;
if (tempClasses) {
classes += ' ' + tempClasses;
options.tempClasses = null;
}
animationQueue.push({
// this data is used by the postDigest code and passed into
// the driver step function
element: element,
classes: classes,
event: event,
structural: isStructural,
options: options,
beforeStart: beforeStart,
close: close
});
element.on('$destroy', handleDestroyedElement);
// we only want there to be one function called within the post digest
// block. This way we can group animations for all the animations that
// were apart of the same postDigest flush call.
if (animationQueue.length > 1) return runner;
$rootScope.$$postDigest(function() {
var animations = [];
forEach(animationQueue, function(entry) {
// the element was destroyed early on which removed the runner
// form its storage. This means we can't animate this element
// at all and it already has been closed due to destruction.
var elm = entry.element;
if (getRunner(elm) && getDomNode(elm).parentNode) {
animations.push(entry);
} else {
entry.close();
}
});
// now any future animations will be in another postDigest
animationQueue.length = 0;
var groupedAnimations = groupAnimations(animations);
var toBeSortedAnimations = [];
forEach(groupedAnimations, function(animationEntry) {
toBeSortedAnimations.push({
domNode: getDomNode(animationEntry.from ? animationEntry.from.element : animationEntry.element),
fn: function triggerAnimationStart() {
// it's important that we apply the `ng-animate` CSS class and the
// temporary classes before we do any driver invoking since these
// CSS classes may be required for proper CSS detection.
animationEntry.beforeStart();
var startAnimationFn, closeFn = animationEntry.close;
// in the event that the element was removed before the digest runs or
// during the RAF sequencing then we should not trigger the animation.
var targetElement = animationEntry.anchors
? (animationEntry.from.element || animationEntry.to.element)
: animationEntry.element;
if (getRunner(targetElement)) {
var operation = invokeFirstDriver(animationEntry, onBeforeClassesAppliedCb);
if (operation) {
startAnimationFn = operation.start;
}
}
if (!startAnimationFn) {
closeFn();
} else {
var animationRunner = startAnimationFn();
animationRunner.done(function(status) {
closeFn(!status);
});
updateAnimationRunners(animationEntry, animationRunner);
}
}
});
});
// we need to sort each of the animations in order of parent to child
// relationships. This ensures that the parent to child classes are
// applied at the right time.
forEach(sortAnimations(toBeSortedAnimations), function(triggerAnimation) {
triggerAnimation();
});
});
return runner;
// TODO(matsko): change to reference nodes
function getAnchorNodes(node) {
var SELECTOR = '[' + NG_ANIMATE_REF_ATTR + ']';
var items = node.hasAttribute(NG_ANIMATE_REF_ATTR)
? [node]
: node.querySelectorAll(SELECTOR);
var anchors = [];
forEach(items, function(node) {
var attr = node.getAttribute(NG_ANIMATE_REF_ATTR);
if (attr && attr.length) {
anchors.push(node);
}
});
return anchors;
}
function groupAnimations(animations) {
var preparedAnimations = [];
var refLookup = {};
forEach(animations, function(animation, index) {
var element = animation.element;
var node = getDomNode(element);
var event = animation.event;
var enterOrMove = ['enter', 'move'].indexOf(event) >= 0;
var anchorNodes = animation.structural ? getAnchorNodes(node) : [];
if (anchorNodes.length) {
var direction = enterOrMove ? 'to' : 'from';
forEach(anchorNodes, function(anchor) {
var key = anchor.getAttribute(NG_ANIMATE_REF_ATTR);
refLookup[key] = refLookup[key] || {};
refLookup[key][direction] = {
animationID: index,
element: jqLite(anchor)
};
});
} else {
preparedAnimations.push(animation);
}
});
var usedIndicesLookup = {};
var anchorGroups = {};
forEach(refLookup, function(operations, key) {
var from = operations.from;
var to = operations.to;
if (!from || !to) {
// only one of these is set therefore we can't have an
// anchor animation since all three pieces are required
var index = from ? from.animationID : to.animationID;
var indexKey = index.toString();
if (!usedIndicesLookup[indexKey]) {
usedIndicesLookup[indexKey] = true;
preparedAnimations.push(animations[index]);
}
return;
}
var fromAnimation = animations[from.animationID];
var toAnimation = animations[to.animationID];
var lookupKey = from.animationID.toString();
if (!anchorGroups[lookupKey]) {
var group = anchorGroups[lookupKey] = {
// TODO(matsko): double-check this code
beforeStart: function() {
fromAnimation.beforeStart();
toAnimation.beforeStart();
},
close: function() {
fromAnimation.close();
toAnimation.close();
},
classes: cssClassesIntersection(fromAnimation.classes, toAnimation.classes),
from: fromAnimation,
to: toAnimation,
anchors: [] // TODO(matsko): change to reference nodes
};
// the anchor animations require that the from and to elements both have at least
// one shared CSS class which effictively marries the two elements together to use
// the same animation driver and to properly sequence the anchor animation.
if (group.classes.length) {
preparedAnimations.push(group);
} else {
preparedAnimations.push(fromAnimation);
preparedAnimations.push(toAnimation);
}
}
anchorGroups[lookupKey].anchors.push({
'out': from.element, 'in': to.element
});
});
return preparedAnimations;
}
function cssClassesIntersection(a,b) {
a = a.split(' ');
b = b.split(' ');
var matches = [];
for (var i = 0; i < a.length; i++) {
var aa = a[i];
if (aa.substring(0,3) === 'ng-') continue;
for (var j = 0; j < b.length; j++) {
if (aa === b[j]) {
matches.push(aa);
break;
}
}
}
return matches.join(' ');
}
function invokeFirstDriver(animationDetails, onBeforeClassesAppliedCb) {
// we loop in reverse order since the more general drivers (like CSS and JS)
// may attempt more elements, but custom drivers are more particular
for (var i = drivers.length - 1; i >= 0; i--) {
var driverName = drivers[i];
if (!$injector.has(driverName)) continue; // TODO(matsko): remove this check
var factory = $injector.get(driverName);
var driver = factory(animationDetails, onBeforeClassesAppliedCb);
if (driver) {
return driver;
}
}
}
function beforeStart() {
element.addClass(NG_ANIMATE_CLASSNAME);
if (tempClasses) {
$$jqLite.addClass(element, tempClasses);
}
}
function updateAnimationRunners(animation, newRunner) {
if (animation.from && animation.to) {
update(animation.from.element);
update(animation.to.element);
} else {
update(animation.element);
}
function update(element) {
getRunner(element).setHost(newRunner);
}
}
function handleDestroyedElement() {
var runner = getRunner(element);
if (runner && (event !== 'leave' || !options.$$domOperationFired)) {
runner.end();
}
}
function close(rejected) { // jshint ignore:line
element.off('$destroy', handleDestroyedElement);
removeRunner(element);
applyAnimationClasses(element, options);
applyAnimationStyles(element, options);
options.domOperation();
if (tempClasses) {
$$jqLite.removeClass(element, tempClasses);
}
element.removeClass(NG_ANIMATE_CLASSNAME);
runner.complete(!rejected);
}
};
}];
}];
/* global angularAnimateModule: true,
$$BodyProvider,
$$rAFMutexFactory,
$$AnimateChildrenDirective,
$$AnimateRunnerFactory,
$$AnimateQueueProvider,
$$AnimationProvider,
$AnimateCssProvider,
$$AnimateCssDriverProvider,
$$AnimateJsProvider,
$$AnimateJsDriverProvider,
*/
/**
* @ngdoc module
* @name ngAnimate
* @description
*
* The `ngAnimate` module provides support for CSS-based animations (keyframes and transitions) as well as JavaScript-based animations via
* callback hooks. Animations are not enabled by default, however, by including `ngAnimate` then the animation hooks are enabled for an Angular app.
*
*
*
* # Usage
* Simply put, there are two ways to make use of animations when ngAnimate is used: by using **CSS** and **JavaScript**. The former works purely based
* using CSS (by using matching CSS selectors/styles) and the latter triggers animations that are registered via `module.animation()`. For
* both CSS and JS animations the sole requirement is to have a matching `CSS class` that exists both in the registered animation and within
* the HTML element that the animation will be triggered on.
*
* ## Directive Support
* The following directives are "animation aware":
*
* | Directive | Supported Animations |
* |----------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------|
* | {@link ng.directive:ngRepeat#animations ngRepeat} | enter, leave and move |
* | {@link ngRoute.directive:ngView#animations ngView} | enter and leave |
* | {@link ng.directive:ngInclude#animations ngInclude} | enter and leave |
* | {@link ng.directive:ngSwitch#animations ngSwitch} | enter and leave |
* | {@link ng.directive:ngIf#animations ngIf} | enter and leave |
* | {@link ng.directive:ngClass#animations ngClass} | add and remove (the CSS class(es) present) |
* | {@link ng.directive:ngShow#animations ngShow} & {@link ng.directive:ngHide#animations ngHide} | add and remove (the ng-hide class value) |
* | {@link ng.directive:form#animation-hooks form} & {@link ng.directive:ngModel#animation-hooks ngModel} | add and remove (dirty, pristine, valid, invalid & all other validations) |
* | {@link module:ngMessages#animations ngMessages} | add and remove (ng-active & ng-inactive) |
* | {@link module:ngMessages#animations ngMessage} | enter and leave |
*
* (More information can be found by visiting each the documentation associated with each directive.)
*
* ## CSS-based Animations
*
* CSS-based animations with ngAnimate are unique since they require no JavaScript code at all. By using a CSS class that we reference between our HTML
* and CSS code we can create an animation that will be picked up by Angular when an the underlying directive performs an operation.
*
* The example below shows how an `enter` animation can be made possible on a element using `ng-if`:
*
* ```html
*
* Fade me in out
*
*
*
* ```
*
* Notice the CSS class **fade**? We can now create the CSS transition code that references this class:
*
* ```css
* /* The starting CSS styles for the enter animation */
* .fade.ng-enter {
* transition:0.5s linear all;
* opacity:0;
* }
*
* /* The finishing CSS styles for the enter animation */
* .fade.ng-enter.ng-enter-active {
* opacity:1;
* }
* ```
*
* The key thing to remember here is that, depending on the animation event (which each of the directives above trigger depending on what's going on) two
* generated CSS classes will be applied to the element; in the example above we have `.ng-enter` and `.ng-enter-active`. For CSS transitions, the transition
* code **must** be defined within the starting CSS class (in this case `.ng-enter`). The destination class is what the transition will animate towards.
*
* If for example we wanted to create animations for `leave` and `move` (ngRepeat triggers move) then we can do so using the same CSS naming conventions:
*
* ```css
* /* now the element will fade out before it is removed from the DOM */
* .fade.ng-leave {
* transition:0.5s linear all;
* opacity:1;
* }
* .fade.ng-leave.ng-leave-active {
* opacity:0;
* }
* ```
*
* We can also make use of **CSS Keyframes** by referencing the keyframe animation within the starting CSS class:
*
* ```css
* /* there is no need to define anything inside of the destination
* CSS class since the keyframe will take charge of the animation */
* .fade.ng-leave {
* animation: my_fade_animation 0.5s linear;
* -webkit-animation: my_fade_animation 0.5s linear;
* }
*
* @keyframes my_fade_animation {
* from { opacity:1; }
* to { opacity:0; }
* }
*
* @-webkit-keyframes my_fade_animation {
* from { opacity:1; }
* to { opacity:0; }
* }
* ```
*
* Feel free also mix transitions and keyframes together as well as any other CSS classes on the same element.
*
* ### CSS Class-based Animations
*
* Class-based animations (animations that are triggered via `ngClass`, `ngShow`, `ngHide` and some other directives) have a slightly different
* naming convention. Class-based animations are basic enough that a standard transition or keyframe can be referenced on the class being added
* and removed.
*
* For example if we wanted to do a CSS animation for `ngHide` then we place an animation on the `.ng-hide` CSS class:
*
* ```html
*
* Show and hide me
*
*
*
*
* ```
*
* All that is going on here with ngShow/ngHide behind the scenes is the `.ng-hide` class is added/removed (when the hidden state is valid). Since
* ngShow and ngHide are animation aware then we can match up a transition and ngAnimate handles the rest.
*
* In addition the addition and removal of the CSS class, ngAnimate also provides two helper methods that we can use to further decorate the animation
* with CSS styles.
*
* ```html
*
* Highlight this box
*
*
*
*
* ```
*
* We can also make use of CSS keyframes by placing them within the CSS classes.
*
*
* ### CSS Staggering Animations
* A Staggering animation is a collection of animations that are issued with a slight delay in between each successive operation resulting in a
* curtain-like effect. The ngAnimate module (versions >=1.2) supports staggering animations and the stagger effect can be
* performed by creating a **ng-EVENT-stagger** CSS class and attaching that class to the base CSS class used for
* the animation. The style property expected within the stagger class can either be a **transition-delay** or an
* **animation-delay** property (or both if your animation contains both transitions and keyframe animations).
*
* ```css
* .my-animation.ng-enter {
* /* standard transition code */
* transition: 1s linear all;
* opacity:0;
* }
* .my-animation.ng-enter-stagger {
* /* this will have a 100ms delay between each successive leave animation */
* transition-delay: 0.1s;
*
* /* in case the stagger doesn't work then the duration value
* must be set to 0 to avoid an accidental CSS inheritance */
* transition-duration: 0s;
* }
* .my-animation.ng-enter.ng-enter-active {
* /* standard transition styles */
* opacity:1;
* }
* ```
*
* Staggering animations work by default in ngRepeat (so long as the CSS class is defined). Outside of ngRepeat, to use staggering animations
* on your own, they can be triggered by firing multiple calls to the same event on $animate. However, the restrictions surrounding this
* are that each of the elements must have the same CSS className value as well as the same parent element. A stagger operation
* will also be reset if one or more animation frames have passed since the multiple calls to `$animate` were fired.
*
* The following code will issue the **ng-leave-stagger** event on the element provided:
*
* ```js
* var kids = parent.children();
*
* $animate.leave(kids[0]); //stagger index=0
* $animate.leave(kids[1]); //stagger index=1
* $animate.leave(kids[2]); //stagger index=2
* $animate.leave(kids[3]); //stagger index=3
* $animate.leave(kids[4]); //stagger index=4
*
* window.requestAnimationFrame(function() {
* //stagger has reset itself
* $animate.leave(kids[5]); //stagger index=0
* $animate.leave(kids[6]); //stagger index=1
*
* $scope.$digest();
* });
* ```
*
* Stagger animations are currently only supported within CSS-defined animations.
*
* ### The `ng-animate` CSS class
*
* When ngAnimate is animating an element it will apply the `ng-animate` CSS class to the element for the duration of the animation.
* This is a temporary CSS class and it will be removed once the animation is over (for both JavaScript and CSS-based animations).
*
* Therefore, animations can be applied to an element using this temporary class directly via CSS.
*
* ```css
* .zipper.ng-animate {
* transition:0.5s linear all;
* }
* .zipper.ng-enter {
* opacity:0;
* }
* .zipper.ng-enter.ng-enter-active {
* opacity:1;
* }
* .zipper.ng-leave {
* opacity:1;
* }
* .zipper.ng-leave.ng-leave-active {
* opacity:0;
* }
* ```
*
* (Note that the `ng-animate` CSS class is reserved and it cannot be applied on an element directly since ngAnimate will always remove
* the CSS class once an animation has completed.)
*
*
* ## JavaScript-based Animations
*
* ngAnimate also allows for animations to be consumed by JavaScript code. The approach is similar to CSS-based animations (where there is a shared
* CSS class that is referenced in our HTML code) but in addition we need to register the JavaScript animation on the module. By making use of the
* `module.animation()` module function we can register the ainmation.
*
* Let's see an example of a enter/leave animation using `ngRepeat`:
*
* ```html
*
* {{ item }}
*
* ```
*
* See the **slide** CSS class? Let's use that class to define an animation that we'll structure in our module code by using `module.animation`:
*
* ```js
* myModule.animation('.slide', [function() {
* return {
* // make note that other events (like addClass/removeClass)
* // have different function input parameters
* enter: function(element, doneFn) {
* jQuery(element).fadeIn(1000, doneFn);
*
* // remember to call doneFn so that angular
* // knows that the animation has concluded
* },
*
* move: function(element, doneFn) {
* jQuery(element).fadeIn(1000, doneFn);
* },
*
* leave: function(element, doneFn) {
* jQuery(element).fadeOut(1000, doneFn);
* }
* }
* }]
* ```
*
* The nice thing about JS-based animations is that we can inject other services and make use of advanced animation libraries such as
* greensock.js and velocity.js.
*
* If our animation code class-based (meaning that something like `ngClass`, `ngHide` and `ngShow` triggers it) then we can still define
* our animations inside of the same registered animation, however, the function input arguments are a bit different:
*
* ```html
*
* this box is moody
*
*
*
*
* ```
*
* ```js
* myModule.animation('.colorful', [function() {
* return {
* addClass: function(element, className, doneFn) {
* // do some cool animation and call the doneFn
* },
* removeClass: function(element, className, doneFn) {
* // do some cool animation and call the doneFn
* },
* setClass: function(element, addedClass, removedClass, doneFn) {
* // do some cool animation and call the doneFn
* }
* }
* }]
* ```
*
* ## CSS + JS Animations Together
*
* AngularJS 1.4 and higher has taken steps to make the amalgamation of CSS and JS animations more flexible. However, unlike earlier versions of Angular,
* defining CSS and JS animations to work off of the same CSS class will not work anymore. Therefore the example below will only result in **JS animations taking
* charge of the animation**:
*
* ```html
*
* Slide in and out
*
* ```
*
* ```js
* myModule.animation('.slide', [function() {
* return {
* enter: function(element, doneFn) {
* jQuery(element).slideIn(1000, doneFn);
* }
* }
* }]
* ```
*
* ```css
* .slide.ng-enter {
* transition:0.5s linear all;
* transform:translateY(-100px);
* }
* .slide.ng-enter.ng-enter-active {
* transform:translateY(0);
* }
* ```
*
* Does this mean that CSS and JS animations cannot be used together? Do JS-based animations always have higher priority? We can make up for the
* lack of CSS animations by using the `$animateCss` service to trigger our own tweaked-out, CSS-based animations directly from
* our own JS-based animation code:
*
* ```js
* myModule.animation('.slide', ['$animateCss', function($animateCss) {
* return {
* enter: function(element, doneFn) {
* // this will trigger `.slide.ng-enter` and `.slide.ng-enter-active`.
* var runner = $animateCss(element, {
* event: 'enter',
* structural: true
* }).start();
* runner.done(doneFn);
* }
* }
* }]
* ```
*
* The nice thing here is that we can save bandwidth by sticking to our CSS-based animation code and we don't need to rely on a 3rd-party animation framework.
*
* The `$animateCss` service is very powerful since we can feed in all kinds of extra properties that will be evaluated and fed into a CSS transition or
* keyframe animation. For example if we wanted to animate the height of an element while adding and removing classes then we can do so by providing that
* data into `$animateCss` directly:
*
* ```js
* myModule.animation('.slide', ['$animateCss', function($animateCss) {
* return {
* enter: function(element, doneFn) {
* var runner = $animateCss(element, {
* event: 'enter',
* structural: true,
* addClass: 'maroon-setting',
* from: { height:0 },
* to: { height: 200 }
* }).start();
*
* runner.done(doneFn);
* }
* }
* }]
* ```
*
* Now we can fill in the rest via our transition CSS code:
*
* ```css
* /* the transition tells ngAnimate to make the animation happen */
* .slide.ng-enter { transition:0.5s linear all; }
*
* /* this extra CSS class will be absorbed into the transition
* since the $animateCss code is adding the class */
* .maroon-setting { background:red; }
* ```
*
* And `$animateCss` will figure out the rest. Just make sure to have the `done()` callback fire the `doneFn` function to signal when the animation is over.
*
* To learn more about what's possible be sure to visit the {@link ngAnimate.$animateCss $animateCss service}.
*
* ## Animation Anchoring (via `ng-animate-ref`)
*
* ngAnimate in AngularJS 1.4 comes packed with the ability to cross-animate elements between
* structural areas of an application (like views) by pairing up elements using an attribute
* called `ng-animate-ref`.
*
* Let's say for example we have two views that are managed by `ng-view` and we want to show
* that there is a relationship between two components situated in within these views. By using the
* `ng-animate-ref` attribute we can identify that the two components are paired together and we
* can then attach an animation, which is triggered when the view changes.
*
* Say for example we have the following template code:
*
* ```html
*
*
*
*
*
*
*
*
*
*
*
* ```
*
* Now, when the view changes (once the link is clicked), ngAnimate will examine the
* HTML contents to see if there is a match reference between any components in the view
* that is leaving and the view that is entering. It will scan both the view which is being
* removed (leave) and inserted (enter) to see if there are any paired DOM elements that
* contain a matching ref value.
*
* The two images match since they share the same ref value. ngAnimate will now create a
* transport element (which is a clone of the first image element) and it will then attempt
* to animate to the position of the second image element in the next view. For the animation to
* work a special CSS class called `ng-anchor` will be added to the transported element.
*
* We can now attach a transition onto the `.banner.ng-anchor` CSS class and then
* ngAnimate will handle the entire transition for us as well as the addition and removal of
* any changes of CSS classes between the elements:
*
* ```css
* .banner.ng-anchor {
* /* this animation will last for 1 second since there are
* two phases to the animation (an `in` and an `out` phase) */
* transition:0.5s linear all;
* }
* ```
*
* We also **must** include animations for the views that are being entered and removed
* (otherwise anchoring wouldn't be possible since the new view would be inserted right away).
*
* ```css
* .view-animation.ng-enter, .view-animation.ng-leave {
* transition:0.5s linear all;
* position:fixed;
* left:0;
* top:0;
* width:100%;
* }
* .view-animation.ng-enter {
* transform:translateX(100%);
* }
* .view-animation.ng-leave,
* .view-animation.ng-enter.ng-enter-active {
* transform:translateX(0%);
* }
* .view-animation.ng-leave.ng-leave-active {
* transform:translateX(-100%);
* }
* ```
*
* Now we can jump back to the anchor animation. When the animation happens, there are two stages that occur:
* an `out` and an `in` stage. The `out` stage happens first and that is when the element is animated away
* from its origin. Once that animation is over then the `in` stage occurs which animates the
* element to its destination. The reason why there are two animations is to give enough time
* for the enter animation on the new element to be ready.
*
* The example above sets up a transition for both the in and out phases, but we can also target the out or
* in phases directly via `ng-anchor-out` and `ng-anchor-in`.
*
* ```css
* .banner.ng-anchor-out {
* transition: 0.5s linear all;
*
* /* the scale will be applied during the out animation,
* but will be animated away when the in animation runs */
* transform: scale(1.2);
* }
*
* .banner.ng-anchor-in {
* transition: 1s linear all;
* }
* ```
*
*
*
*
* ### Anchoring Demo
*
Home
.record {
display:block;
font-size:20px;
}
.profile {
background:black;
color:white;
font-size:100px;
}
.view-container {
position:relative;
}
.view-container > .view.ng-animate {
position:absolute;
top:0;
left:0;
width:100%;
min-height:500px;
}
.view.ng-enter, .view.ng-leave,
.record.ng-anchor {
transition:0.5s linear all;
}
.view.ng-enter {
transform:translateX(100%);
}
.view.ng-enter.ng-enter-active, .view.ng-leave {
transform:translateX(0%);
}
.view.ng-leave.ng-leave-active {
transform:translateX(-100%);
}
.record.ng-anchor-out {
background:red;
}
*
* ### How is the element transported?
*
* When an anchor animation occurs, ngAnimate will clone the starting element and position it exactly where the starting
* element is located on screen via absolute positioning. The cloned element will be placed inside of the root element
* of the application (where ng-app was defined) and all of the CSS classes of the starting element will be applied. The
* element will then animate into the `out` and `in` animations and will eventually reach the coordinates and match
* the dimensions of the destination element. During the entire animation a CSS class of `.ng-animate-shim` will be applied
* to both the starting and destination elements in order to hide them from being visible (the CSS styling for the class
* is: `visibility:hidden`). Once the anchor reaches its destination then it will be removed and the destination element
* will become visible since the shim class will be removed.
*
* ### How is the morphing handled?
*
* CSS Anchoring relies on transitions and keyframes and the internal code is intelligent enough to figure out
* what CSS classes differ between the starting element and the destination element. These different CSS classes
* will be added/removed on the anchor element and a transition will be applied (the transition that is provided
* in the anchor class). Long story short, ngAnimate will figure out what classes to add and remove which will
* make the transition of the element as smooth and automatic as possible. Be sure to use simple CSS classes that
* do not rely on DOM nesting structure so that the anchor element appears the same as the starting element (since
* the cloned element is placed inside of root element which is likely close to the body element).
*
* Note that if the root element is on the `` element then the cloned node will be placed inside of body.
*
*
* ## Using $animate in your directive code
*
* So far we've explored how to feed in animations into an Angular application, but how do we trigger animations within our own directives in our application?
* By injecting the `$animate` service into our directive code, we can trigger structural and class-based hooks which can then be consumed by animations. Let's
* imagine we have a greeting box that shows and hides itself when the data changes
*
* ```html
* Hi there
* ```
*
* ```js
* ngModule.directive('greetingBox', ['$animate', function($animate) {
* return function(scope, element, attrs) {
* attrs.$observe('active', function(value) {
* value ? $animate.addClass(element, 'on') : $animate.removeClass(element, 'on');
* });
* });
* }]);
* ```
*
* Now the `on` CSS class is added and removed on the greeting box component. Now if we add a CSS class on top of the greeting box element
* in our HTML code then we can trigger a CSS or JS animation to happen.
*
* ```css
* /* normally we would create a CSS class to reference on the element */
* greeting-box.on { transition:0.5s linear all; background:green; color:white; }
* ```
*
* The `$animate` service contains a variety of other methods like `enter`, `leave`, `animate` and `setClass`. To learn more about what's
* possible be sure to visit the {@link ng.$animate $animate service API page}.
*
*
* ### Preventing Collisions With Third Party Libraries
*
* Some third-party frameworks place animation duration defaults across many element or className
* selectors in order to make their code small and reuseable. This can lead to issues with ngAnimate, which
* is expecting actual animations on these elements and has to wait for their completion.
*
* You can prevent this unwanted behavior by using a prefix on all your animation classes:
*
* ```css
* /* prefixed with animate- */
* .animate-fade-add.animate-fade-add-active {
* transition:1s linear all;
* opacity:0;
* }
* ```
*
* You then configure `$animate` to enforce this prefix:
*
* ```js
* $animateProvider.classNameFilter(/animate-/);
* ```
*
* This also may provide your application with a speed boost since only specific elements containing CSS class prefix
* will be evaluated for animation when any DOM changes occur in the application.
*
* ## Callbacks and Promises
*
* When `$animate` is called it returns a promise that can be used to capture when the animation has ended. Therefore if we were to trigger
* an animation (within our directive code) then we can continue performing directive and scope related activities after the animation has
* ended by chaining onto the returned promise that animation method returns.
*
* ```js
* // somewhere within the depths of the directive
* $animate.enter(element, parent).then(function() {
* //the animation has completed
* });
* ```
*
* (Note that earlier versions of Angular prior to v1.4 required the promise code to be wrapped using `$scope.$apply(...)`. This is not the case
* anymore.)
*
* In addition to the animation promise, we can also make use of animation-related callbacks within our directives and controller code by registering
* an event listener using the `$animate` service. Let's say for example that an animation was triggered on our view
* routing controller to hook into that:
*
* ```js
* ngModule.controller('HomePageController', ['$animate', function($animate) {
* $animate.on('enter', ngViewElement, function(element) {
* // the animation for this route has completed
* }]);
* }])
* ```
*
* (Note that you will need to trigger a digest within the callback to get angular to notice any scope-related changes.)
*/
/**
* @ngdoc service
* @name $animate
* @kind object
*
* @description
* The ngAnimate `$animate` service documentation is the same for the core `$animate` service.
*
* Click here {@link ng.$animate $animate to learn more about animations with `$animate`}.
*/
angular.module('ngAnimate', [])
.provider('$$body', $$BodyProvider)
.directive('ngAnimateChildren', $$AnimateChildrenDirective)
.factory('$$rAFMutex', $$rAFMutexFactory)
.factory('$$AnimateRunner', $$AnimateRunnerFactory)
.provider('$$animateQueue', $$AnimateQueueProvider)
.provider('$$animation', $$AnimationProvider)
.provider('$animateCss', $AnimateCssProvider)
.provider('$$animateCssDriver', $$AnimateCssDriverProvider)
.provider('$$animateJs', $$AnimateJsProvider)
.provider('$$animateJsDriver', $$AnimateJsDriverProvider);
})(window, window.angular);
*
*
*
*