/** * @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
angular.module('anchoringExample', ['ngAnimate', 'ngRoute']) .config(['$routeProvider', function($routeProvider) { $routeProvider.when('/', { templateUrl: 'home.html', controller: 'HomeController as home' }); $routeProvider.when('/profile/:id', { templateUrl: 'profile.html', controller: 'ProfileController as profile' }); }]) .run(['$rootScope', function($rootScope) { $rootScope.records = [ { id:1, title: "Miss Beulah Roob" }, { id:2, title: "Trent Morissette" }, { id:3, title: "Miss Ava Pouros" }, { id:4, title: "Rod Pouros" }, { id:5, title: "Abdul Rice" }, { id:6, title: "Laurie Rutherford Sr." }, { id:7, title: "Nakia McLaughlin" }, { id:8, title: "Jordon Blanda DVM" }, { id:9, title: "Rhoda Hand" }, { id:10, title: "Alexandrea Sauer" } ]; }]) .controller('HomeController', [function() { //empty }]) .controller('ProfileController', ['$rootScope', '$routeParams', function($rootScope, $routeParams) { var index = parseInt($routeParams.id, 10); var record = $rootScope.records[index - 1]; this.title = record.title; this.id = record.id; }]);

Welcome to the home page

Please click on an element

{{ record.title }}
{{ profile.title }}
.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);