diff --git a/static/js/angular-animate.js b/static/js/angular-animate.js
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+/**
+ * @license AngularJS v1.5.3
+ * (c) 2010-2016 Google, Inc. http://angularjs.org
+ * License: MIT
+ */
+(function(window, angular, undefined) {'use strict';
+
+/* jshint ignore:start */
+var noop = angular.noop;
+var copy = angular.copy;
+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 PREPARE_CLASS_SUFFIX = '-prepare';
+
+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 (isUndefined(window.ontransitionend) && isDefined(window.onwebkittransitionend)) {
+ CSS_PREFIX = '-webkit-';
+ TRANSITION_PROP = 'WebkitTransition';
+ TRANSITIONEND_EVENT = 'webkitTransitionEnd transitionend';
+} else {
+ TRANSITION_PROP = 'transition';
+ TRANSITIONEND_EVENT = 'transitionend';
+}
+
+if (isUndefined(window.onanimationend) && isDefined(window.onwebkitanimationend)) {
+ 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;
+};
+
+var ngMinErr = angular.$$minErr('ng');
+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 mergeAnimationDetails(element, oldAnimation, newAnimation) {
+ var target = oldAnimation.options || {};
+ var newOptions = newAnimation.options || {};
+
+ 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;
+ }
+
+ oldAnimation.addClass = target.addClass;
+ oldAnimation.removeClass = target.removeClass;
+
+ 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;
+}
+
+var $$rAFSchedulerFactory = ['$$rAF', function($$rAF) {
+ var queue, cancelFn;
+
+ function scheduler(tasks) {
+ // we make a copy since RAFScheduler mutates the state
+ // of the passed in array variable and this would be difficult
+ // to track down on the outside code
+ queue = queue.concat(tasks);
+ nextTick();
+ }
+
+ queue = scheduler.queue = [];
+
+ /* waitUntilQuiet does two things:
+ * 1. It will run the FINAL `fn` value only when an uncanceled RAF has passed through
+ * 2. It will delay the next wave of tasks from running until the quiet `fn` has run.
+ *
+ * The motivation here is that animation code can request more time from the scheduler
+ * before the next wave runs. This allows for certain DOM properties such as classes to
+ * be resolved in time for the next animation to run.
+ */
+ scheduler.waitUntilQuiet = function(fn) {
+ if (cancelFn) cancelFn();
+
+ cancelFn = $$rAF(function() {
+ cancelFn = null;
+ fn();
+ nextTick();
+ });
+ };
+
+ return scheduler;
+
+ function nextTick() {
+ if (!queue.length) return;
+
+ var items = queue.shift();
+ for (var i = 0; i < items.length; i++) {
+ items[i]();
+ }
+
+ if (!cancelFn) {
+ $$rAF(function() {
+ if (!cancelFn) nextTick();
+ });
+ }
+ }
+}];
+
+/**
+ * @ngdoc directive
+ * @name ngAnimateChildren
+ * @restrict AE
+ * @element ANY
+ *
+ * @description
+ *
+ * ngAnimateChildren allows you to specify that children of this element should animate even if any
+ * of the children's parents are currently animating. By default, when an element has an active `enter`, `leave`, or `move`
+ * (structural) animation, child elements that also have an active structural animation are not animated.
+ *
+ * Note that even if `ngAnimteChildren` is set, no child animations will run when the parent element is removed from the DOM (`leave` animation).
+ *
+ *
+ * @param {string} ngAnimateChildren If the value is empty, `true` or `on`,
+ * then child animations are allowed. If the value is `false`, child animations are not allowed.
+ *
+ * @example
+ *
+
+
+
+
+
+
+
+ List of items:
+
Item {{item}}
+
+
+
+
+
+
+ .container.ng-enter,
+ .container.ng-leave {
+ transition: all ease 1.5s;
+ }
+
+ .container.ng-enter,
+ .container.ng-leave-active {
+ opacity: 0;
+ }
+
+ .container.ng-leave,
+ .container.ng-enter-active {
+ opacity: 1;
+ }
+
+ .item {
+ background: firebrick;
+ color: #FFF;
+ margin-bottom: 10px;
+ }
+
+ .item.ng-enter,
+ .item.ng-leave {
+ transition: transform 1.5s ease;
+ }
+
+ .item.ng-enter {
+ transform: translateX(50px);
+ }
+
+ .item.ng-enter-active {
+ transform: translateX(0);
+ }
+
+
+ angular.module('ngAnimateChildren', ['ngAnimate'])
+ .controller('mainController', function() {
+ this.animateChildren = false;
+ this.enterElement = false;
+ });
+
+
+ */
+var $$AnimateChildrenDirective = ['$interpolate', function($interpolate) {
+ return {
+ link: 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 {
+ // Interpolate and set the value, so that it is available to
+ // animations that run right after compilation
+ setData($interpolate(val)(scope));
+ attrs.$observe('ngAnimateChildren', setData);
+ }
+
+ function setData(value) {
+ value = value === 'on' || value === 'true';
+ element.data(NG_ANIMATE_CHILDREN_DATA, value);
+ }
+ }
+ };
+}];
+
+var ANIMATE_TIMER_KEY = '$$animateCss';
+
+/**
+ * @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 styles 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.)
+ * * `structural` - Indicates that the `ng-` prefix will be added to the event class. Setting to `false` or omitting will turn `ng-EVENT` and
+ * `ng-EVENT-active` in `EVENT` and `EVENT-active`. Unused if `event` is omitted.
+ * * `easing` - The CSS easing value that will be applied to the transition or keyframe animation (or both).
+ * * `transitionStyle` - 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 occurring on the classes being added and removed.)
+ * * `cleanupStyles` - Whether or not the provided `from` and `to` styles will be removed once
+ * the animation is closed. This is useful for when the styles are used purely for the sake of
+ * the animation and do not have a lasting visual effect on the element (e.g. a collapse and open animation).
+ * By default this value is set to `false`.
+ *
+ * @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 negative 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++;
+ }
+ }
+ };
+}
+
+// we do not reassign an already present style value since
+// if we detect the style property value again we may be
+// detecting styles that were added via the `from` styles.
+// We make use of `isDefined` here since an empty string
+// or null value (which is what getPropertyValue will return
+// for a non-existing style) will still be marked as a valid
+// value for the style (a falsy value implies that the style
+// is to be removed at the end of the animation). If we had a simple
+// "OR" statement then it would not be enough to catch that.
+function registerRestorableStyles(backup, node, properties) {
+ forEach(properties, function(prop) {
+ backup[prop] = isDefined(backup[prop])
+ ? backup[prop]
+ : node.style.getPropertyValue(prop);
+ });
+}
+
+var $AnimateCssProvider = ['$animateProvider', function($animateProvider) {
+ var gcsLookup = createLocalCacheLookup();
+ var gcsStaggerLookup = createLocalCacheLookup();
+
+ this.$get = ['$window', '$$jqLite', '$$AnimateRunner', '$timeout',
+ '$$forceReflow', '$sniffer', '$$rAFScheduler', '$$animateQueue',
+ function($window, $$jqLite, $$AnimateRunner, $timeout,
+ $$forceReflow, $sniffer, $$rAFScheduler, $$animateQueue) {
+
+ var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);
+
+ var parentCounter = 0;
+ function gcsHashFn(node, extraClasses) {
+ var KEY = "$$ngAnimateParentKey";
+ var parentNode = node.parentNode;
+ var parentID = parentNode[KEY] || (parentNode[KEY] = ++parentCounter);
+ return parentID + '-' + node.getAttribute('class') + '-' + extraClasses;
+ }
+
+ function computeCachedCssStyles(node, className, cacheKey, properties) {
+ var timings = gcsLookup.get(cacheKey);
+
+ if (!timings) {
+ timings = computeCssStyles($window, node, properties);
+ if (timings.animationIterationCount === 'infinite') {
+ timings.animationIterationCount = 1;
+ }
+ }
+
+ // we keep putting this in multiple times even though the value and the cacheKey are the same
+ // because we're keeping an internal tally of how many duplicate animations are detected.
+ gcsLookup.put(cacheKey, timings);
+ return timings;
+ }
+
+ function computeCachedCssStaggerStyles(node, className, cacheKey, properties) {
+ var stagger;
+
+ // if we have one or more existing matches of matching elements
+ // containing the same parent + CSS styles (which is how cacheKey works)
+ // then staggering is possible
+ if (gcsLookup.count(cacheKey) > 0) {
+ stagger = gcsStaggerLookup.get(cacheKey);
+
+ if (!stagger) {
+ var staggerClassName = pendClasses(className, '-stagger');
+
+ $$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);
+
+ $$jqLite.removeClass(node, staggerClassName);
+
+ gcsStaggerLookup.put(cacheKey, stagger);
+ }
+ }
+
+ return stagger || {};
+ }
+
+ var cancelLastRAFRequest;
+ var rafWaitQueue = [];
+ function waitUntilQuiet(callback) {
+ rafWaitQueue.push(callback);
+ $$rAFScheduler.waitUntilQuiet(function() {
+ 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;
+ });
+ }
+
+ 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;
+ }
+
+ return function init(element, initialOptions) {
+ // all of the animation functions should create
+ // a copy of the options data, however, if a
+ // parent service has already created a copy then
+ // we should stick to using that
+ var options = initialOptions || {};
+ if (!options.$$prepared) {
+ options = prepareAnimationOptions(copy(options));
+ }
+
+ var restoreStyles = {};
+ var node = getDomNode(element);
+ if (!node
+ || !node.parentNode
+ || !$$animateQueue.enabled()) {
+ return closeAndReturnNoopAnimator();
+ }
+
+ 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;
+ var startTime;
+ var events = [];
+
+ 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);
+ }
+
+ 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();
+ }
+
+ if (options.delay != null) {
+ var delayStyle;
+ if (typeof options.delay !== "boolean") {
+ delayStyle = parseFloat(options.delay);
+ // number in options.delay means we have to recalculate the delay for the closing timeout
+ maxDelay = Math.max(delayStyle, 0);
+ }
+
+ if (flags.applyTransitionDelay) {
+ temporaryStyles.push(getCssDelayStyle(delayStyle));
+ }
+
+ if (flags.applyAnimationDelay) {
+ temporaryStyles.push(getCssDelayStyle(delayStyle, true));
+ }
+ }
+
+ // 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;
+ }
+
+ if (options.from) {
+ if (options.cleanupStyles) {
+ registerRestorableStyles(restoreStyles, node, Object.keys(options.from));
+ }
+ 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);
+ }
+ $$jqLite.removeClass(element, activeClasses);
+
+ blockKeyframeAnimations(node, false);
+ blockTransitions(node, false);
+
+ forEach(temporaryStyles, function(entry) {
+ // There is only one way to remove inline style properties entirely from elements.
+ // By using `removeProperty` this works, but we need to convert camel-cased CSS
+ // styles down to hyphenated values.
+ node.style[entry[0]] = '';
+ });
+
+ applyAnimationClasses(element, options);
+ applyAnimationStyles(element, options);
+
+ if (Object.keys(restoreStyles).length) {
+ forEach(restoreStyles, function(value, prop) {
+ value ? node.style.setProperty(prop, value)
+ : node.style.removeProperty(prop);
+ });
+ }
+
+ // the reason why we have this option is to allow a synchronous closing callback
+ // that is fired as SOON as the animation ends (when the CSS is removed) or if
+ // the animation never takes off at all. A good example is a leave animation since
+ // the element must be removed just after the animation is over or else the element
+ // will appear on screen for one animation frame causing an overbearing flicker.
+ if (options.onDone) {
+ options.onDone();
+ }
+
+ if (events && events.length) {
+ // Remove the transitionend / animationend listener(s)
+ element.off(events.join(' '), onAnimationProgress);
+ }
+
+ //Cancel the fallback closing timeout and remove the timer data
+ var animationTimerData = element.data(ANIMATE_TIMER_KEY);
+ if (animationTimerData) {
+ $timeout.cancel(animationTimerData[0].timer);
+ element.removeData(ANIMATE_TIMER_KEY);
+ }
+
+ // if the preparation function fails then the promise is not setup
+ if (runner) {
+ runner.complete(!rejected);
+ }
+ }
+
+ function applyBlocking(duration) {
+ if (flags.blockTransition) {
+ blockTransitions(node, duration);
+ }
+
+ if (flags.blockKeyframeAnimation) {
+ blockKeyframeAnimations(node, !!duration);
+ }
+ }
+
+ function closeAndReturnNoopAnimator() {
+ runner = new $$AnimateRunner({
+ end: endFn,
+ cancel: cancelFn
+ });
+
+ // should flush the cache animation
+ waitUntilQuiet(noop);
+ close();
+
+ return {
+ $$willAnimate: false,
+ start: function() {
+ return runner;
+ },
+ end: endFn
+ };
+ }
+
+ function onAnimationProgress(event) {
+ event.stopPropagation();
+ var ev = event.originalEvent || event;
+
+ // we now always use `Date.now()` due to the recent changes with
+ // event.timeStamp in Firefox, Webkit and Chrome (see #13494 for more info)
+ var timeStamp = ev.$manualTimeStamp || 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 animationPauseds 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();
+ }
+ }
+
+ function start() {
+ if (animationClosed) return;
+ if (!node.parentNode) {
+ close();
+ return;
+ }
+
+ // 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 accidentally 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 intentional 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.applyAnimationDelay) {
+ relativeDelay = typeof options.delay !== "boolean" && truthyTimingValue(options.delay)
+ ? parseFloat(options.delay)
+ : relativeDelay;
+
+ maxDelay = Math.max(relativeDelay, 0);
+ 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();
+ var timerTime = maxDelayTime + CLOSING_TIME_BUFFER * maxDurationTime;
+ var endTime = startTime + timerTime;
+
+ var animationsData = element.data(ANIMATE_TIMER_KEY) || [];
+ var setupFallbackTimer = true;
+ if (animationsData.length) {
+ var currentTimerData = animationsData[0];
+ setupFallbackTimer = endTime > currentTimerData.expectedEndTime;
+ if (setupFallbackTimer) {
+ $timeout.cancel(currentTimerData.timer);
+ } else {
+ animationsData.push(close);
+ }
+ }
+
+ if (setupFallbackTimer) {
+ var timer = $timeout(onAnimationExpired, timerTime, false);
+ animationsData[0] = {
+ timer: timer,
+ expectedEndTime: endTime
+ };
+ animationsData.push(close);
+ element.data(ANIMATE_TIMER_KEY, animationsData);
+ }
+
+ if (events.length) {
+ element.on(events.join(' '), onAnimationProgress);
+ }
+
+ if (options.to) {
+ if (options.cleanupStyles) {
+ registerRestorableStyles(restoreStyles, node, Object.keys(options.to));
+ }
+ applyAnimationToStyles(element, options);
+ }
+ }
+
+ function onAnimationExpired() {
+ var animationsData = element.data(ANIMATE_TIMER_KEY);
+
+ // this will be false in the event that the element was
+ // removed from the DOM (via a leave animation or something
+ // similar)
+ if (animationsData) {
+ for (var i = 1; i < animationsData.length; i++) {
+ animationsData[i]();
+ }
+ element.removeData(ANIMATE_TIMER_KEY);
+ }
+ }
+ }
+ };
+ }];
+}];
+
+var $$AnimateCssDriverProvider = ['$$animationProvider', function($$animationProvider) {
+ $$animationProvider.drivers.push('$$animateCssDriver');
+
+ var NG_ANIMATE_SHIM_CLASS_NAME = 'ng-animate-shim';
+ var NG_ANIMATE_ANCHOR_CLASS_NAME = 'ng-anchor';
+
+ var NG_OUT_ANCHOR_CLASS_NAME = 'ng-anchor-out';
+ var NG_IN_ANCHOR_CLASS_NAME = 'ng-anchor-in';
+
+ function isDocumentFragment(node) {
+ return node.parentNode && node.parentNode.nodeType === 11;
+ }
+
+ this.$get = ['$animateCss', '$rootScope', '$$AnimateRunner', '$rootElement', '$sniffer', '$$jqLite', '$document',
+ function($animateCss, $rootScope, $$AnimateRunner, $rootElement, $sniffer, $$jqLite, $document) {
+
+ // only browsers that support these properties can render animations
+ if (!$sniffer.animations && !$sniffer.transitions) return noop;
+
+ var bodyNode = $document[0].body;
+ var rootNode = getDomNode($rootElement);
+
+ var rootBodyElement = jqLite(
+ // this is to avoid using something that exists outside of the body
+ // we also special case the doc fragment case because our unit test code
+ // appends the $rootElement to the body after the app has been bootstrapped
+ isDocumentFragment(rootNode) || bodyNode.contains(rootNode) ? rootNode : bodyNode
+ );
+
+ var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);
+
+ return function initDriverFn(animationDetails) {
+ return animationDetails.from && animationDetails.to
+ ? prepareFromToAnchorAnimation(animationDetails.from,
+ animationDetails.to,
+ animationDetails.classes,
+ animationDetails.anchors)
+ : prepareRegularAnimation(animationDetails);
+ };
+
+ 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 $$AnimateRunner({
+ end: endFn,
+ cancel: endFn
+ });
+
+ return runner;
+
+ function endFn() {
+ if (currentAnimation) {
+ currentAnimation.end();
+ }
+ }
+ }
+ };
+
+ function calculateAnchorStyles(anchor) {
+ var styles = {};
+
+ var coords = getDomNode(anchor).getBoundingClientRect();
+
+ // we iterate directly since safari messes up and doesn't return
+ // all the keys for the coords object when iterated
+ forEach(['width','height','top','left'], function(key) {
+ var value = coords[key];
+ switch (key) {
+ case 'top':
+ value += bodyNode.scrollTop;
+ break;
+ case 'left':
+ value += bodyNode.scrollLeft;
+ break;
+ }
+ styles[key] = Math.floor(value) + 'px';
+ });
+ return styles;
+ }
+
+ function prepareOutAnimation() {
+ var animator = $animateCss(clone, {
+ addClass: NG_OUT_ANCHOR_CLASS_NAME,
+ delay: true,
+ from: calculateAnchorStyles(outAnchor)
+ });
+
+ // read the comment within `prepareRegularAnimation` to understand
+ // why this check is necessary
+ return animator.$$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
+ });
+
+ $$AnimateRunner.all(animationRunners, function(status) {
+ runner.complete(status);
+ });
+
+ return runner;
+
+ function endFn() {
+ forEach(animationRunners, function(runner) {
+ runner.end();
+ });
+ }
+ }
+ };
+ }
+
+ function prepareRegularAnimation(animationDetails) {
+ var element = animationDetails.element;
+ var options = animationDetails.options || {};
+
+ if (animationDetails.structural) {
+ options.event = animationDetails.event;
+ options.structural = true;
+ options.applyClassesEarly = true;
+
+ // we special case the leave animation since we want to ensure that
+ // the element is removed as soon as the animation is over. Otherwise
+ // a flicker might appear or the element may not be removed at all
+ if (animationDetails.event === 'leave') {
+ options.onDone = options.domOperation;
+ }
+ }
+
+ // We assign the preparationClasses as the actual animation event since
+ // the internals of $animateCss will just suffix the event token values
+ // with `-active` to trigger the animation.
+ if (options.preparationClasses) {
+ options.event = concatWithSpace(options.event, options.preparationClasses);
+ }
+
+ var animator = $animateCss(element, options);
+
+ // the driver lookup code inside of $$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', '$$jqLite',
+ function($injector, $$AnimateRunner, $$jqLite) {
+
+ var applyAnimationClasses = applyAnimationClassesFactory($$jqLite);
+ // $animateJs(element, 'enter');
+ return function(element, event, classes, options) {
+ var animationClosed = false;
+
+ // 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);
+ }
+
+ function close() {
+ animationClosed = true;
+ applyOptions();
+ applyAnimationStyles(element, options);
+ }
+
+ var runner;
+
+ return {
+ $$willAnimate: true,
+ end: function() {
+ if (runner) {
+ runner.end();
+ } else {
+ close();
+ runner = new $$AnimateRunner();
+ runner.complete(true);
+ }
+ return runner;
+ },
+ start: function() {
+ if (runner) {
+ return runner;
+ }
+
+ runner = new $$AnimateRunner();
+ var closeActiveAnimations;
+ var chain = [];
+
+ if (before) {
+ chain.push(function(fn) {
+ closeActiveAnimations = before(fn);
+ });
+ }
+
+ if (chain.length) {
+ chain.push(function(fn) {
+ applyOptions();
+ fn(true);
+ });
+ } else {
+ applyOptions();
+ }
+
+ if (after) {
+ chain.push(function(fn) {
+ closeActiveAnimations = after(fn);
+ });
+ }
+
+ runner.setHost({
+ end: function() {
+ endAnimations();
+ },
+ cancel: function() {
+ endAnimations(true);
+ }
+ });
+
+ $$AnimateRunner.chain(chain, onComplete);
+ return runner;
+
+ function onComplete(success) {
+ close(success);
+ 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 ONE_SPACE = ' ';
+
+ var rules = this.rules = {
+ skip: [],
+ cancel: [],
+ join: []
+ };
+
+ function makeTruthyCssClassMap(classString) {
+ if (!classString) {
+ return null;
+ }
+
+ var keys = classString.split(ONE_SPACE);
+ var map = Object.create(null);
+
+ forEach(keys, function(key) {
+ map[key] = true;
+ });
+ return map;
+ }
+
+ function hasMatchingClasses(newClassString, currentClassString) {
+ if (newClassString && currentClassString) {
+ var currentClassMap = makeTruthyCssClassMap(currentClassString);
+ return newClassString.split(ONE_SPACE).some(function(className) {
+ return currentClassMap[className];
+ });
+ }
+ }
+
+ function isAllowed(ruleType, element, currentAnimation, previousAnimation) {
+ return rules[ruleType].some(function(fn) {
+ return fn(element, currentAnimation, previousAnimation);
+ });
+ }
+
+ function hasAnimationClasses(animation, and) {
+ var a = (animation.addClass || '').length > 0;
+ var b = (animation.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);
+ });
+
+ 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);
+ });
+
+ 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) {
+ // cancel the animation if classes added / removed in both animation cancel each other out,
+ // but only if the current animation isn't structural
+
+ if (currentAnimation.structural) return false;
+
+ var nA = newAnimation.addClass;
+ var nR = newAnimation.removeClass;
+ var cA = currentAnimation.addClass;
+ var cR = currentAnimation.removeClass;
+
+ // early detection to save the global CPU shortage :)
+ if ((isUndefined(nA) && isUndefined(nR)) || (isUndefined(cA) && isUndefined(cR))) {
+ return false;
+ }
+
+ return hasMatchingClasses(nA, cR) || hasMatchingClasses(nR, cA);
+ });
+
+ this.$get = ['$$rAF', '$rootScope', '$rootElement', '$document', '$$HashMap',
+ '$$animation', '$$AnimateRunner', '$templateRequest', '$$jqLite', '$$forceReflow',
+ function($$rAF, $rootScope, $rootElement, $document, $$HashMap,
+ $$animation, $$AnimateRunner, $templateRequest, $$jqLite, $$forceReflow) {
+
+ var activeAnimationsLookup = new $$HashMap();
+ var disabledElementsLookup = new $$HashMap();
+ var animationsEnabled = null;
+
+ function postDigestTaskFactory() {
+ var postDigestCalled = false;
+ return function(fn) {
+ // we only issue a call to postDigest before
+ // it has first passed. This prevents any callbacks
+ // from not firing once the animation has completed
+ // since it will be out of the digest cycle.
+ if (postDigestCalled) {
+ fn();
+ } else {
+ $rootScope.$$postDigest(function() {
+ postDigestCalled = true;
+ fn();
+ });
+ }
+ };
+ }
+
+ // 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 normalizeAnimationDetails(element, animation) {
+ return mergeAnimationDetails(element, animation, {});
+ }
+
+ // IE9-11 has no method "contains" in SVG element and in Node.prototype. Bug #10259.
+ var contains = Node.prototype.contains || function(arg) {
+ // jshint bitwise: false
+ return this === arg || !!(this.compareDocumentPosition(arg) & 16);
+ // jshint bitwise: true
+ };
+
+ function findCallbacks(parent, element, event) {
+ var targetNode = getDomNode(element);
+ var targetParentNode = getDomNode(parent);
+
+ var matches = [];
+ var entries = callbackRegistry[event];
+ if (entries) {
+ forEach(entries, function(entry) {
+ if (contains.call(entry.node, targetNode)) {
+ matches.push(entry.callback);
+ } else if (event === 'leave' && contains.call(entry.node, targetParentNode)) {
+ matches.push(entry.callback);
+ }
+ });
+ }
+
+ return matches;
+ }
+
+ var $animate = {
+ on: function(event, container, callback) {
+ var node = extractElementNode(container);
+ callbackRegistry[event] = callbackRegistry[event] || [];
+ callbackRegistry[event].push({
+ node: node,
+ callback: callback
+ });
+
+ // Remove the callback when the element is removed from the DOM
+ jqLite(container).on('$destroy', function() {
+ $animate.off(event, container, 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
+ disabledElementsLookup.put(node, !bool);
+ }
+ }
+ }
+
+ return bool;
+ }
+ };
+
+ return $animate;
+
+ function queueAnimation(element, event, initialOptions) {
+ // we always make a copy of the options since
+ // there should never be any side effects on
+ // the input data when running `$animateCss`.
+ var options = copy(initialOptions);
+
+ 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();
+
+ // this is used to trigger callbacks in postDigest mode
+ var runInNextPostDigestOrNow = postDigestTaskFactory();
+
+ 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
+ // Animations are also disabled if the document is currently hidden (page is not visible
+ // to the user), because browsers slow down or do not flush calls to requestAnimationFrame
+ var skipAnimations = !animationsEnabled || $document[0].hidden || 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,
+ addClass: options.addClass,
+ removeClass: options.removeClass,
+ 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 {
+ mergeAnimationDetails(element, existingAnimation, newAnimation);
+ 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
+ mergeAnimationDetails(element, existingAnimation, newAnimation);
+
+ 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) {
+ normalizeAnimationDetails(element, newAnimation);
+ } else {
+ applyGeneratedPreparationClasses(element, isStructural ? event : null, options);
+
+ event = newAnimation.event = existingAnimation.event;
+ options = mergeAnimationDetails(element, existingAnimation, newAnimation);
+
+ //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
+ normalizeAnimationDetails(element, newAnimation);
+ }
+
+ // 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);
+ }
+
+ if (!isValidAnimation) {
+ close();
+ clearElementAnimationState(element);
+ return runner;
+ }
+
+ // 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));
+
+ // 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, true)
+ ? 'setClass'
+ : animationDetails.event;
+
+ markElementAnimationState(element, RUNNING_STATE);
+ var realRunner = $$animation(element, event, animationDetails.options);
+
+ 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) {
+ runInNextPostDigestOrNow(function() {
+ var callbacks = findCallbacks(parent, element, event);
+ if (callbacks.length) {
+ // do not optimize this call here to RAF because
+ // we don't know how heavy the callback code here will
+ // be and if this code is buffered then this can
+ // lead to a performance regression.
+ $$rAF(function() {
+ forEach(callbacks, function(callback) {
+ callback(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);
+ if (animationDetails) {
+ switch (state) {
+ case RUNNING_STATE:
+ animationDetails.runner.end();
+ /* falls through */
+ case PRE_DIGEST_STATE:
+ 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);
+ }
+
+ /**
+ * This fn returns false if any of the following is true:
+ * a) animations on any parent element are disabled, and animations on the element aren't explicitly allowed
+ * b) a parent element has an ongoing structural animation, and animateChildren is false
+ * c) the element is not a child of the body
+ * d) the element is not a child of the $rootElement
+ */
+ function areAnimationsAllowed(element, parentElement, event) {
+ var bodyElement = jqLite($document[0].body);
+ var bodyElementDetected = isMatchingElement(element, bodyElement) || element[0].nodeName === 'HTML';
+ var rootElementDetected = isMatchingElement(element, $rootElement);
+ var parentAnimationDetected = false;
+ var animateChildren;
+ var elementDisabled = disabledElementsLookup.get(getDomNode(element));
+
+ var parentHost = jqLite.data(element[0], NG_ANIMATE_PIN_DATA);
+ if (parentHost) {
+ parentElement = parentHost;
+ }
+
+ parentElement = getDomNode(parentElement);
+
+ while (parentElement) {
+ 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 (parentElement.nodeType !== ELEMENT_NODE) {
+ // no point in inspecting the #document element
+ break;
+ }
+
+ var details = activeAnimationsLookup.get(parentElement) || {};
+ // 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) {
+ var parentElementDisabled = disabledElementsLookup.get(parentElement);
+
+ if (parentElementDisabled === true && elementDisabled !== false) {
+ // disable animations if the user hasn't explicitly enabled animations on the
+ // current element
+ elementDisabled = true;
+ // element is disabled via parent element, no need to check anything else
+ break;
+ } else if (parentElementDisabled === false) {
+ elementDisabled = false;
+ }
+ parentAnimationDetected = details.structural;
+ }
+
+ if (isUndefined(animateChildren) || animateChildren === true) {
+ var value = jqLite.data(parentElement, 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 (!bodyElementDetected) {
+ // we also need to ensure that the element is or will be a part of the body element
+ // otherwise it is pointless to even issue an animation to be rendered
+ bodyElementDetected = isMatchingElement(parentElement, bodyElement);
+ }
+
+ if (bodyElementDetected && rootElementDetected) {
+ // If both body and root have been found, any other checks are pointless,
+ // as no animation data should live outside the application
+ break;
+ }
+
+ if (!rootElementDetected) {
+ // If no rootElement is detected, check if the parentElement is pinned to another element
+ parentHost = jqLite.data(parentElement, NG_ANIMATE_PIN_DATA);
+ if (parentHost) {
+ // The pin target element becomes the next parent element
+ parentElement = getDomNode(parentHost);
+ continue;
+ }
+ }
+
+ parentElement = parentElement.parentNode;
+ }
+
+ var allowAnimation = (!parentAnimationDetected || animateChildren) && elementDisabled !== true;
+ 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 $$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', '$$rAFScheduler',
+ function($$jqLite, $rootScope, $injector, $$AnimateRunner, $$HashMap, $$rAFScheduler) {
+
+ var animationQueue = [];
+ var applyAnimationClasses = applyAnimationClassesFactory($$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.push(row);
+ row = [];
+ }
+ row.push(entry.fn);
+ entry.children.forEach(function(childEntry) {
+ nextLevelEntries++;
+ queue.push(childEntry);
+ });
+ remainingLevelEntries--;
+ }
+
+ if (row.length) {
+ result.push(row);
+ }
+
+ return result;
+ }
+ }
+
+ // TODO(matsko): document the signature in a better way
+ return function(element, event, options) {
+ 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;
+ }
+
+ var prepareClassName;
+ if (isStructural) {
+ prepareClassName = 'ng-' + event + PREPARE_CLASS_SUFFIX;
+ $$jqLite.addClass(element, prepareClassName);
+ }
+
+ animationQueue.push({
+ // this data is used by the postDigest code and passed into
+ // the driver step function
+ element: element,
+ classes: classes,
+ event: event,
+ structural: isStructural,
+ options: options,
+ beforeStart: beforeStart,
+ close: close
+ });
+
+ element.on('$destroy', handleDestroyedElement);
+
+ // we only want there to be one function called within the post digest
+ // block. This way we can group animations for all the animations that
+ // were apart of the same postDigest flush call.
+ if (animationQueue.length > 1) return runner;
+
+ $rootScope.$$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.
+ if (getRunner(entry.element)) {
+ 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);
+ 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 child classes are applied at the
+ // right time.
+ $$rAFScheduler(sortAnimations(toBeSortedAnimations));
+ });
+
+ 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] = {
+ structural: true,
+ 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 effectively 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) {
+ // 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);
+ if (driver) {
+ return driver;
+ }
+ }
+ }
+
+ function beforeStart() {
+ element.addClass(NG_ANIMATE_CLASSNAME);
+ if (tempClasses) {
+ $$jqLite.addClass(element, tempClasses);
+ }
+ if (prepareClassName) {
+ $$jqLite.removeClass(element, prepareClassName);
+ prepareClassName = null;
+ }
+ }
+
+ function updateAnimationRunners(animation, newRunner) {
+ if (animation.from && animation.to) {
+ update(animation.from.element);
+ update(animation.to.element);
+ } else {
+ update(animation.element);
+ }
+
+ function update(element) {
+ getRunner(element).setHost(newRunner);
+ }
+ }
+
+ function handleDestroyedElement() {
+ var runner = getRunner(element);
+ if (runner && (event !== 'leave' || !options.$$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);
+ }
+ };
+ }];
+}];
+
+/**
+ * @ngdoc directive
+ * @name ngAnimateSwap
+ * @restrict A
+ * @scope
+ *
+ * @description
+ *
+ * ngAnimateSwap is a animation-oriented directive that allows for the container to
+ * be removed and entered in whenever the associated expression changes. A
+ * common usecase for this directive is a rotating banner or slider component which
+ * contains one image being present at a time. When the active image changes
+ * then the old image will perform a `leave` animation and the new element
+ * will be inserted via an `enter` animation.
+ *
+ * @animations
+ * | Animation | Occurs |
+ * |----------------------------------|--------------------------------------|
+ * | {@link ng.$animate#enter enter} | when the new element is inserted to the DOM |
+ * | {@link ng.$animate#leave leave} | when the old element is removed from the DOM |
+ *
+ * @example
+ *
+ *
+ *
+ *
+ * {{ number }}
+ *
+ *
+ *
+ *
+ * angular.module('ngAnimateSwapExample', ['ngAnimate'])
+ * .controller('AppCtrl', ['$scope', '$interval', function($scope, $interval) {
+ * $scope.number = 0;
+ * $interval(function() {
+ * $scope.number++;
+ * }, 1000);
+ *
+ * var colors = ['red','blue','green','yellow','orange'];
+ * $scope.colorClass = function(number) {
+ * return colors[number % colors.length];
+ * };
+ * }]);
+ *
+ *
+ * .container {
+ * height:250px;
+ * width:250px;
+ * position:relative;
+ * overflow:hidden;
+ * border:2px solid black;
+ * }
+ * .container .cell {
+ * font-size:150px;
+ * text-align:center;
+ * line-height:250px;
+ * position:absolute;
+ * top:0;
+ * left:0;
+ * right:0;
+ * border-bottom:2px solid black;
+ * }
+ * .swap-animation.ng-enter, .swap-animation.ng-leave {
+ * transition:0.5s linear all;
+ * }
+ * .swap-animation.ng-enter {
+ * top:-250px;
+ * }
+ * .swap-animation.ng-enter-active {
+ * top:0px;
+ * }
+ * .swap-animation.ng-leave {
+ * top:0px;
+ * }
+ * .swap-animation.ng-leave-active {
+ * top:250px;
+ * }
+ * .red { background:red; }
+ * .green { background:green; }
+ * .blue { background:blue; }
+ * .yellow { background:yellow; }
+ * .orange { background:orange; }
+ *
+ *
+ */
+var ngAnimateSwapDirective = ['$animate', '$rootScope', function($animate, $rootScope) {
+ return {
+ restrict: 'A',
+ transclude: 'element',
+ terminal: true,
+ priority: 600, // we use 600 here to ensure that the directive is caught before others
+ link: function(scope, $element, attrs, ctrl, $transclude) {
+ var previousElement, previousScope;
+ scope.$watchCollection(attrs.ngAnimateSwap || attrs['for'], function(value) {
+ if (previousElement) {
+ $animate.leave(previousElement);
+ }
+ if (previousScope) {
+ previousScope.$destroy();
+ previousScope = null;
+ }
+ if (value || value === 0) {
+ previousScope = scope.$new();
+ $transclude(previousScope, function(element) {
+ previousElement = element;
+ $animate.enter(element, null, $element);
+ });
+ }
+ });
+ }
+ };
+}];
+
+/* global angularAnimateModule: true,
+
+ ngAnimateSwapDirective,
+ $$AnimateAsyncRunFactory,
+ $$rAFSchedulerFactory,
+ $$AnimateChildrenDirective,
+ $$AnimateQueueProvider,
+ $$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` 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 an 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;
+ *
+ * /* As of 1.4.4, this must always be set: it signals ngAnimate
+ * to not accidentally inherit a delay property from another CSS class */
+ * 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.)
+ *
+ *
+ * ### The `ng-[event]-prepare` class
+ *
+ * This is a special class that can be used to prevent unwanted flickering / flash of content before
+ * the actual animation starts. The class is added as soon as an animation is initialized, but removed
+ * before the actual animation starts (after waiting for a $digest).
+ * It is also only added for *structural* animations (`enter`, `move`, and `leave`).
+ *
+ * In practice, flickering can appear when nesting elements with structural animations such as `ngIf`
+ * into elements that have class-based animations such as `ngClass`.
+ *
+ * ```html
+ *
+ *
+ *
+ *
+ *
+ * ```
+ *
+ * It is possible that during the `enter` animation, the `.message` div will be briefly visible before it starts animating.
+ * In that case, you can add styles to the CSS that make sure the element stays hidden before the animation starts:
+ *
+ * ```css
+ * .message.ng-enter-prepare {
+ * opacity: 0;
+ * }
+ *
+ * ```
+ *
+ * ## 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 animation.
+ *
+ * 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) {
+* // this will trigger `.slide.ng-enter` and `.slide.ng-enter-active`.
+ * return $animateCss(element, {
+ * event: 'enter',
+ * structural: true
+ * });
+ * }
+ * }
+ * }]);
+ * ```
+ *
+ * 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) {
+ * return $animateCss(element, {
+ * event: 'enter',
+ * structural: true,
+ * addClass: 'maroon-setting',
+ * from: { height:0 },
+ * to: { height: 200 }
+ * });
+ * }
+ * }
+ * }]);
+ * ```
+ *
+ * Now we can fill in the rest via our transition CSS code:
+ *
+ * ```css
+ * /* the transition tells ngAnimate to make the animation happen */
+ * .slide.ng-enter { transition:0.5s linear all; }
+ *
+ * /* this extra CSS class will be absorbed into the transition
+ * since the $animateCss code is adding the class */
+ * .maroon-setting { background:red; }
+ * ```
+ *
+ * And `$animateCss` will figure out the rest. Just make sure to have the `done()` callback fire the `doneFn` function to signal when the animation is over.
+ *
+ * To learn more about what's possible be sure to visit the {@link ngAnimate.$animateCss $animateCss service}.
+ *
+ * ## Animation Anchoring (via `ng-animate-ref`)
+ *
+ * ngAnimate in AngularJS 1.4 comes packed with the ability to cross-animate elements between
+ * structural areas of an application (like views) by pairing up elements using an attribute
+ * called `ng-animate-ref`.
+ *
+ * Let's say for example we have two views that are managed by `ng-view` and we want to show
+ * that there is a relationship between two components situated in within these views. By using the
+ * `ng-animate-ref` attribute we can identify that the two components are paired together and we
+ * can then attach an animation, which is triggered when the view changes.
+ *
+ * Say for example we have the following template code:
+ *
+ * ```html
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ *
+ * ```
+ *
+ * Now, when the view changes (once the link is clicked), ngAnimate will examine the
+ * HTML contents to see if there is a match reference between any components in the view
+ * that is leaving and the view that is entering. It will scan both the view which is being
+ * removed (leave) and inserted (enter) to see if there are any paired DOM elements that
+ * contain a matching ref value.
+ *
+ * The two images match since they share the same ref value. ngAnimate will now create a
+ * transport element (which is a clone of the first image element) and it will then attempt
+ * to animate to the position of the second image element in the next view. For the animation to
+ * work a special CSS class called `ng-anchor` will be added to the transported element.
+ *
+ * We can now attach a transition onto the `.banner.ng-anchor` CSS class and then
+ * ngAnimate will handle the entire transition for us as well as the addition and removal of
+ * any changes of CSS classes between the elements:
+ *
+ * ```css
+ * .banner.ng-anchor {
+ * /* this animation will last for 1 second since there are
+ * two phases to the animation (an `in` and an `out` phase) */
+ * transition:0.5s linear all;
+ * }
+ * ```
+ *
+ * We also **must** include animations for the views that are being entered and removed
+ * (otherwise anchoring wouldn't be possible since the new view would be inserted right away).
+ *
+ * ```css
+ * .view-animation.ng-enter, .view-animation.ng-leave {
+ * transition:0.5s linear all;
+ * position:fixed;
+ * left:0;
+ * top:0;
+ * width:100%;
+ * }
+ * .view-animation.ng-enter {
+ * transform:translateX(100%);
+ * }
+ * .view-animation.ng-leave,
+ * .view-animation.ng-enter.ng-enter-active {
+ * transform:translateX(0%);
+ * }
+ * .view-animation.ng-leave.ng-leave-active {
+ * transform:translateX(-100%);
+ * }
+ * ```
+ *
+ * Now we can jump back to the anchor animation. When the animation happens, there are two stages that occur:
+ * an `out` and an `in` stage. The `out` stage happens first and that is when the element is animated away
+ * from its origin. Once that animation is over then the `in` stage occurs which animates the
+ * element to its destination. The reason why there are two animations is to give enough time
+ * for the enter animation on the new element to be ready.
+ *
+ * The example above sets up a transition for both the in and out phases, but we can also target the out or
+ * in phases directly via `ng-anchor-out` and `ng-anchor-in`.
+ *
+ * ```css
+ * .banner.ng-anchor-out {
+ * transition: 0.5s linear all;
+ *
+ * /* the scale will be applied during the out animation,
+ * but will be animated away when the in animation runs */
+ * transform: scale(1.2);
+ * }
+ *
+ * .banner.ng-anchor-in {
+ * transition: 1s linear all;
+ * }
+ * ```
+ *
+ *
+ *
+ *
+ * ### Anchoring Demo
+ *
+
+
+ Home
+
+
+
+
+ .record {
+ display:block;
+ font-size:20px;
+ }
+ .profile {
+ background:black;
+ color:white;
+ font-size:100px;
+ }
+ .view-container {
+ position:relative;
+ }
+ .view-container > .view.ng-animate {
+ position:absolute;
+ top:0;
+ left:0;
+ width:100%;
+ min-height:500px;
+ }
+ .view.ng-enter, .view.ng-leave,
+ .record.ng-anchor {
+ transition:0.5s linear all;
+ }
+ .view.ng-enter {
+ transform:translateX(100%);
+ }
+ .view.ng-enter.ng-enter-active, .view.ng-leave {
+ transform:translateX(0%);
+ }
+ .view.ng-leave.ng-leave-active {
+ transform:translateX(-100%);
+ }
+ .record.ng-anchor-out {
+ background:red;
+ }
+
+
+ *
+ * ### How is the element transported?
+ *
+ * When an anchor animation occurs, ngAnimate will clone the starting element and position it exactly where the starting
+ * element is located on screen via absolute positioning. The cloned element will be placed inside of the root element
+ * of the application (where ng-app was defined) and all of the CSS classes of the starting element will be applied. The
+ * element will then animate into the `out` and `in` animations and will eventually reach the coordinates and match
+ * the dimensions of the destination element. During the entire animation a CSS class of `.ng-animate-shim` will be applied
+ * to both the starting and destination elements in order to hide them from being visible (the CSS styling for the class
+ * is: `visibility:hidden`). Once the anchor reaches its destination then it will be removed and the destination element
+ * will become visible since the shim class will be removed.
+ *
+ * ### How is the morphing handled?
+ *
+ * CSS Anchoring relies on transitions and keyframes and the internal code is intelligent enough to figure out
+ * what CSS classes differ between the starting element and the destination element. These different CSS classes
+ * will be added/removed on the anchor element and a transition will be applied (the transition that is provided
+ * in the anchor class). Long story short, ngAnimate will figure out what classes to add and remove which will
+ * make the transition of the element as smooth and automatic as possible. Be sure to use simple CSS classes that
+ * do not rely on DOM nesting structure so that the anchor element appears the same as the starting element (since
+ * the cloned element is placed inside of root element which is likely close to the body element).
+ *
+ * Note that if the root element is on the `` element then the cloned node will be placed inside of body.
+ *
+ *
+ * ## Using $animate in your directive code
+ *
+ * So far we've explored how to feed in animations into an Angular application, but how do we trigger animations within our own directives in our application?
+ * By injecting the `$animate` service into our directive code, we can trigger structural and class-based hooks which can then be consumed by animations. Let's
+ * imagine we have a greeting box that shows and hides itself when the data changes
+ *
+ * ```html
+ * Hi there
+ * ```
+ *
+ * ```js
+ * ngModule.directive('greetingBox', ['$animate', function($animate) {
+ * return function(scope, element, attrs) {
+ * attrs.$observe('active', function(value) {
+ * value ? $animate.addClass(element, 'on') : $animate.removeClass(element, 'on');
+ * });
+ * });
+ * }]);
+ * ```
+ *
+ * Now the `on` CSS class is added and removed on the greeting box component. Now if we add a CSS class on top of the greeting box element
+ * in our HTML code then we can trigger a CSS or JS animation to happen.
+ *
+ * ```css
+ * /* normally we would create a CSS class to reference on the element */
+ * greeting-box.on { transition:0.5s linear all; background:green; color:white; }
+ * ```
+ *
+ * The `$animate` service contains a variety of other methods like `enter`, `leave`, `animate` and `setClass`. To learn more about what's
+ * possible be sure to visit the {@link ng.$animate $animate service API page}.
+ *
+ *
+ * ## 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 to learn more about animations with `$animate`}.
+ */
+angular.module('ngAnimate', [])
+ .directive('ngAnimateSwap', ngAnimateSwapDirective)
+
+ .directive('ngAnimateChildren', $$AnimateChildrenDirective)
+ .factory('$$rAFScheduler', $$rAFSchedulerFactory)
+
+ .provider('$$animateQueue', $$AnimateQueueProvider)
+ .provider('$$animation', $$AnimationProvider)
+
+ .provider('$animateCss', $AnimateCssProvider)
+ .provider('$$animateCssDriver', $$AnimateCssDriverProvider)
+
+ .provider('$$animateJs', $$AnimateJsProvider)
+ .provider('$$animateJsDriver', $$AnimateJsDriverProvider);
+
+
+})(window, window.angular);
diff --git a/static/js/angular-animate.min.js b/static/js/angular-animate.min.js
new file mode 100644
index 0000000..57108b2
--- /dev/null
+++ b/static/js/angular-animate.min.js
@@ -0,0 +1,56 @@
+/*
+ AngularJS v1.5.3
+ (c) 2010-2016 Google, Inc. http://angularjs.org
+ License: MIT
+*/
+(function(E,w,Va){'use strict';function ya(a,b,c){if(!a)throw Ka("areq",b||"?",c||"required");return a}function za(a,b){if(!a&&!b)return"";if(!a)return b;if(!b)return a;ba(a)&&(a=a.join(" "));ba(b)&&(b=b.join(" "));return a+" "+b}function La(a){var b={};a&&(a.to||a.from)&&(b.to=a.to,b.from=a.from);return b}function V(a,b,c){var d="";a=ba(a)?a:a&&I(a)&&a.length?a.split(/\s+/):[];q(a,function(a,f){a&&0=a&&(a=h,h=0,b.push(e),e=[]);e.push(f.fn);f.children.forEach(function(a){h++;c.push(a)});a--}e.length&&b.push(e);return b}(c)}var l=[],w=Q(a);return function(s,x,v){function h(a){a=a.hasAttribute("ng-animate-ref")?[a]:a.querySelectorAll("[ng-animate-ref]");var b=[];q(a,function(a){var c=a.getAttribute("ng-animate-ref");c&&c.length&&b.push(a)});return b}function P(a){var b=[],c={};q(a,function(a,g){var d=A(a.element),k=0<=["enter","move"].indexOf(a.event),d=a.structural?
+h(d):[];if(d.length){var e=k?"to":"from";q(d,function(a){var b=a.getAttribute("ng-animate-ref");c[b]=c[b]||{};c[b][e]={animationID:g,element:H(a)}})}else b.push(a)});var d={},k={};q(c,function(c,h){var e=c.from,f=c.to;if(e&&f){var m=a[e.animationID],C=a[f.animationID],n=e.animationID.toString();if(!k[n]){var D=k[n]={structural:!0,beforeStart:function(){m.beforeStart();C.beforeStart()},close:function(){m.close();C.close()},classes:y(m.classes,C.classes),from:m,to:C,anchors:[]};D.classes.length?b.push(D):
+(b.push(m),b.push(C))}k[n].anchors.push({out:e.element,"in":f.element})}else e=e?e.animationID:f.animationID,f=e.toString(),d[f]||(d[f]=!0,b.push(a[e]))});return b}function y(a,b){a=a.split(" ");b=b.split(" ");for(var c=[],d=0;d=Q&&b>=L&&(H=!0,n())}function K(){function b(){if(!P){D(!1);q(y,function(a){m.style[a[0]]=a[1]});h(a,g);e.addClass(a,ga);if(p.recalculateTimingStyles){na=m.className+" "+fa;ia=w(m,na);B=v(m,na,ia);$=B.maxDelay;I=Math.max($,0);L=B.maxDuration;if(0===L){n();return}p.hasTransitions=0z.expectedEndTime)?r.cancel(z.timer):f.push(n)}K&&(l=r(c,l,!1),f[0]={timer:l,expectedEndTime:d},f.push(n),a.data("$$animateCss",f));
+if(ea.length)a.on(ea.join(" "),C);g.to&&(g.cleanupStyles&&Ga(G,m,Object.keys(g.to)),Ba(a,g))}}function c(){var b=a.data("$$animateCss");if(b){for(var d=1;d
+ *
+ */
+
+// define ngTouch module
+/* global -ngTouch */
+var ngTouch = angular.module('ngTouch', []);
+
+ngTouch.provider('$touch', $TouchProvider);
+
+function nodeName_(element) {
+ return angular.lowercase(element.nodeName || (element[0] && element[0].nodeName));
+}
+
+/**
+ * @ngdoc provider
+ * @name $touchProvider
+ *
+ * @description
+ * The `$touchProvider` allows enabling / disabling {@link ngTouch.ngClick ngTouch's ngClick directive}.
+ */
+$TouchProvider.$inject = ['$provide', '$compileProvider'];
+function $TouchProvider($provide, $compileProvider) {
+
+ /**
+ * @ngdoc method
+ * @name $touchProvider#ngClickOverrideEnabled
+ *
+ * @param {boolean=} enabled update the ngClickOverrideEnabled state if provided, otherwise just return the
+ * current ngClickOverrideEnabled state
+ * @returns {*} current value if used as getter or itself (chaining) if used as setter
+ *
+ * @kind function
+ *
+ * @description
+ * Call this method to enable/disable {@link ngTouch.ngClick ngTouch's ngClick directive}. If enabled,
+ * the default ngClick directive will be replaced by a version that eliminates the 300ms delay for
+ * click events on browser for touch-devices.
+ *
+ * The default is `false`.
+ *
+ */
+ var ngClickOverrideEnabled = false;
+ var ngClickDirectiveAdded = false;
+ this.ngClickOverrideEnabled = function(enabled) {
+ if (angular.isDefined(enabled)) {
+
+ if (enabled && !ngClickDirectiveAdded) {
+ ngClickDirectiveAdded = true;
+
+ // Use this to identify the correct directive in the delegate
+ ngTouchClickDirectiveFactory.$$moduleName = 'ngTouch';
+ $compileProvider.directive('ngClick', ngTouchClickDirectiveFactory);
+
+ $provide.decorator('ngClickDirective', ['$delegate', function($delegate) {
+ if (ngClickOverrideEnabled) {
+ // drop the default ngClick directive
+ $delegate.shift();
+ } else {
+ // drop the ngTouch ngClick directive if the override has been re-disabled (because
+ // we cannot de-register added directives)
+ var i = $delegate.length - 1;
+ while (i >= 0) {
+ if ($delegate[i].$$moduleName === 'ngTouch') {
+ $delegate.splice(i, 1);
+ break;
+ }
+ i--;
+ }
+ }
+
+ return $delegate;
+ }]);
+ }
+
+ ngClickOverrideEnabled = enabled;
+ return this;
+ }
+
+ return ngClickOverrideEnabled;
+ };
+
+ /**
+ * @ngdoc service
+ * @name $touch
+ * @kind object
+ *
+ * @description
+ * Provides the {@link ngTouch.$touch#ngClickOverrideEnabled `ngClickOverrideEnabled`} method.
+ *
+ */
+ this.$get = function() {
+ return {
+ /**
+ * @ngdoc method
+ * @name $touch#ngClickOverrideEnabled
+ *
+ * @returns {*} current value of `ngClickOverrideEnabled` set in the {@link ngTouch.$touchProvider $touchProvider},
+ * i.e. if {@link ngTouch.ngClick ngTouch's ngClick} directive is enabled.
+ *
+ * @kind function
+ */
+ ngClickOverrideEnabled: function() {
+ return ngClickOverrideEnabled;
+ }
+ };
+ };
+
+}
+
+/* global ngTouch: false */
+
+ /**
+ * @ngdoc service
+ * @name $swipe
+ *
+ * @description
+ * The `$swipe` service is a service that abstracts the messier details of hold-and-drag swipe
+ * behavior, to make implementing swipe-related directives more convenient.
+ *
+ * Requires the {@link ngTouch `ngTouch`} module to be installed.
+ *
+ * `$swipe` is used by the `ngSwipeLeft` and `ngSwipeRight` directives in `ngTouch`.
+ *
+ * # Usage
+ * The `$swipe` service is an object with a single method: `bind`. `bind` takes an element
+ * which is to be watched for swipes, and an object with four handler functions. See the
+ * documentation for `bind` below.
+ */
+
+ngTouch.factory('$swipe', [function() {
+ // The total distance in any direction before we make the call on swipe vs. scroll.
+ var MOVE_BUFFER_RADIUS = 10;
+
+ var POINTER_EVENTS = {
+ 'mouse': {
+ start: 'mousedown',
+ move: 'mousemove',
+ end: 'mouseup'
+ },
+ 'touch': {
+ start: 'touchstart',
+ move: 'touchmove',
+ end: 'touchend',
+ cancel: 'touchcancel'
+ }
+ };
+
+ function getCoordinates(event) {
+ var originalEvent = event.originalEvent || event;
+ var touches = originalEvent.touches && originalEvent.touches.length ? originalEvent.touches : [originalEvent];
+ var e = (originalEvent.changedTouches && originalEvent.changedTouches[0]) || touches[0];
+
+ return {
+ x: e.clientX,
+ y: e.clientY
+ };
+ }
+
+ function getEvents(pointerTypes, eventType) {
+ var res = [];
+ angular.forEach(pointerTypes, function(pointerType) {
+ var eventName = POINTER_EVENTS[pointerType][eventType];
+ if (eventName) {
+ res.push(eventName);
+ }
+ });
+ return res.join(' ');
+ }
+
+ return {
+ /**
+ * @ngdoc method
+ * @name $swipe#bind
+ *
+ * @description
+ * The main method of `$swipe`. It takes an element to be watched for swipe motions, and an
+ * object containing event handlers.
+ * The pointer types that should be used can be specified via the optional
+ * third argument, which is an array of strings `'mouse'` and `'touch'`. By default,
+ * `$swipe` will listen for `mouse` and `touch` events.
+ *
+ * The four events are `start`, `move`, `end`, and `cancel`. `start`, `move`, and `end`
+ * receive as a parameter a coordinates object of the form `{ x: 150, y: 310 }` and the raw
+ * `event`. `cancel` receives the raw `event` as its single parameter.
+ *
+ * `start` is called on either `mousedown` or `touchstart`. After this event, `$swipe` is
+ * watching for `touchmove` or `mousemove` events. These events are ignored until the total
+ * distance moved in either dimension exceeds a small threshold.
+ *
+ * Once this threshold is exceeded, either the horizontal or vertical delta is greater.
+ * - If the horizontal distance is greater, this is a swipe and `move` and `end` events follow.
+ * - If the vertical distance is greater, this is a scroll, and we let the browser take over.
+ * A `cancel` event is sent.
+ *
+ * `move` is called on `mousemove` and `touchmove` after the above logic has determined that
+ * a swipe is in progress.
+ *
+ * `end` is called when a swipe is successfully completed with a `touchend` or `mouseup`.
+ *
+ * `cancel` is called either on a `touchcancel` from the browser, or when we begin scrolling
+ * as described above.
+ *
+ */
+ bind: function(element, eventHandlers, pointerTypes) {
+ // Absolute total movement, used to control swipe vs. scroll.
+ var totalX, totalY;
+ // Coordinates of the start position.
+ var startCoords;
+ // Last event's position.
+ var lastPos;
+ // Whether a swipe is active.
+ var active = false;
+
+ pointerTypes = pointerTypes || ['mouse', 'touch'];
+ element.on(getEvents(pointerTypes, 'start'), function(event) {
+ startCoords = getCoordinates(event);
+ active = true;
+ totalX = 0;
+ totalY = 0;
+ lastPos = startCoords;
+ eventHandlers['start'] && eventHandlers['start'](startCoords, event);
+ });
+ var events = getEvents(pointerTypes, 'cancel');
+ if (events) {
+ element.on(events, function(event) {
+ active = false;
+ eventHandlers['cancel'] && eventHandlers['cancel'](event);
+ });
+ }
+
+ element.on(getEvents(pointerTypes, 'move'), function(event) {
+ if (!active) return;
+
+ // Android will send a touchcancel if it thinks we're starting to scroll.
+ // So when the total distance (+ or - or both) exceeds 10px in either direction,
+ // we either:
+ // - On totalX > totalY, we send preventDefault() and treat this as a swipe.
+ // - On totalY > totalX, we let the browser handle it as a scroll.
+
+ if (!startCoords) return;
+ var coords = getCoordinates(event);
+
+ totalX += Math.abs(coords.x - lastPos.x);
+ totalY += Math.abs(coords.y - lastPos.y);
+
+ lastPos = coords;
+
+ if (totalX < MOVE_BUFFER_RADIUS && totalY < MOVE_BUFFER_RADIUS) {
+ return;
+ }
+
+ // One of totalX or totalY has exceeded the buffer, so decide on swipe vs. scroll.
+ if (totalY > totalX) {
+ // Allow native scrolling to take over.
+ active = false;
+ eventHandlers['cancel'] && eventHandlers['cancel'](event);
+ return;
+ } else {
+ // Prevent the browser from scrolling.
+ event.preventDefault();
+ eventHandlers['move'] && eventHandlers['move'](coords, event);
+ }
+ });
+
+ element.on(getEvents(pointerTypes, 'end'), function(event) {
+ if (!active) return;
+ active = false;
+ eventHandlers['end'] && eventHandlers['end'](getCoordinates(event), event);
+ });
+ }
+ };
+}]);
+
+/* global ngTouch: false,
+ nodeName_: false
+*/
+
+/**
+ * @ngdoc directive
+ * @name ngClick
+ * @deprecated
+ *
+ * @description
+ *
+ * **DEPRECATION NOTICE**: Beginning with Angular 1.5, this directive is deprecated and by default **disabled**.
+ * The directive will receive no further support and might be removed from future releases.
+ * If you need the directive, you can enable it with the {@link ngTouch.$touchProvider $touchProvider#ngClickOverrideEnabled}
+ * function. We also recommend that you migrate to [FastClick](https://github.com/ftlabs/fastclick).
+ * To learn more about the 300ms delay, this [Telerik article](http://developer.telerik.com/featured/300-ms-click-delay-ios-8/)
+ * gives a good overview.
+ *
+ * A more powerful replacement for the default ngClick designed to be used on touchscreen
+ * devices. Most mobile browsers wait about 300ms after a tap-and-release before sending
+ * the click event. This version handles them immediately, and then prevents the
+ * following click event from propagating.
+ *
+ * Requires the {@link ngTouch `ngTouch`} module to be installed.
+ *
+ * This directive can fall back to using an ordinary click event, and so works on desktop
+ * browsers as well as mobile.
+ *
+ * This directive also sets the CSS class `ng-click-active` while the element is being held
+ * down (by a mouse click or touch) so you can restyle the depressed element if you wish.
+ *
+ * @element ANY
+ * @param {expression} ngClick {@link guide/expression Expression} to evaluate
+ * upon tap. (Event object is available as `$event`)
+ *
+ * @example
+
+
+
+ count: {{ count }}
+
+
+ angular.module('ngClickExample', ['ngTouch']);
+
+
+ */
+
+var ngTouchClickDirectiveFactory = ['$parse', '$timeout', '$rootElement',
+ function($parse, $timeout, $rootElement) {
+ var TAP_DURATION = 750; // Shorter than 750ms is a tap, longer is a taphold or drag.
+ var MOVE_TOLERANCE = 12; // 12px seems to work in most mobile browsers.
+ var PREVENT_DURATION = 2500; // 2.5 seconds maximum from preventGhostClick call to click
+ var CLICKBUSTER_THRESHOLD = 25; // 25 pixels in any dimension is the limit for busting clicks.
+
+ var ACTIVE_CLASS_NAME = 'ng-click-active';
+ var lastPreventedTime;
+ var touchCoordinates;
+ var lastLabelClickCoordinates;
+
+
+ // TAP EVENTS AND GHOST CLICKS
+ //
+ // Why tap events?
+ // Mobile browsers detect a tap, then wait a moment (usually ~300ms) to see if you're
+ // double-tapping, and then fire a click event.
+ //
+ // This delay sucks and makes mobile apps feel unresponsive.
+ // So we detect touchstart, touchcancel and touchend ourselves and determine when
+ // the user has tapped on something.
+ //
+ // What happens when the browser then generates a click event?
+ // The browser, of course, also detects the tap and fires a click after a delay. This results in
+ // tapping/clicking twice. We do "clickbusting" to prevent it.
+ //
+ // How does it work?
+ // We attach global touchstart and click handlers, that run during the capture (early) phase.
+ // So the sequence for a tap is:
+ // - global touchstart: Sets an "allowable region" at the point touched.
+ // - element's touchstart: Starts a touch
+ // (- touchcancel ends the touch, no click follows)
+ // - element's touchend: Determines if the tap is valid (didn't move too far away, didn't hold
+ // too long) and fires the user's tap handler. The touchend also calls preventGhostClick().
+ // - preventGhostClick() removes the allowable region the global touchstart created.
+ // - The browser generates a click event.
+ // - The global click handler catches the click, and checks whether it was in an allowable region.
+ // - If preventGhostClick was called, the region will have been removed, the click is busted.
+ // - If the region is still there, the click proceeds normally. Therefore clicks on links and
+ // other elements without ngTap on them work normally.
+ //
+ // This is an ugly, terrible hack!
+ // Yeah, tell me about it. The alternatives are using the slow click events, or making our users
+ // deal with the ghost clicks, so I consider this the least of evils. Fortunately Angular
+ // encapsulates this ugly logic away from the user.
+ //
+ // Why not just put click handlers on the element?
+ // We do that too, just to be sure. If the tap event caused the DOM to change,
+ // it is possible another element is now in that position. To take account for these possibly
+ // distinct elements, the handlers are global and care only about coordinates.
+
+ // Checks if the coordinates are close enough to be within the region.
+ function hit(x1, y1, x2, y2) {
+ return Math.abs(x1 - x2) < CLICKBUSTER_THRESHOLD && Math.abs(y1 - y2) < CLICKBUSTER_THRESHOLD;
+ }
+
+ // Checks a list of allowable regions against a click location.
+ // Returns true if the click should be allowed.
+ // Splices out the allowable region from the list after it has been used.
+ function checkAllowableRegions(touchCoordinates, x, y) {
+ for (var i = 0; i < touchCoordinates.length; i += 2) {
+ if (hit(touchCoordinates[i], touchCoordinates[i + 1], x, y)) {
+ touchCoordinates.splice(i, i + 2);
+ return true; // allowable region
+ }
+ }
+ return false; // No allowable region; bust it.
+ }
+
+ // Global click handler that prevents the click if it's in a bustable zone and preventGhostClick
+ // was called recently.
+ function onClick(event) {
+ if (Date.now() - lastPreventedTime > PREVENT_DURATION) {
+ return; // Too old.
+ }
+
+ var touches = event.touches && event.touches.length ? event.touches : [event];
+ var x = touches[0].clientX;
+ var y = touches[0].clientY;
+ // Work around desktop Webkit quirk where clicking a label will fire two clicks (on the label
+ // and on the input element). Depending on the exact browser, this second click we don't want
+ // to bust has either (0,0), negative coordinates, or coordinates equal to triggering label
+ // click event
+ if (x < 1 && y < 1) {
+ return; // offscreen
+ }
+ if (lastLabelClickCoordinates &&
+ lastLabelClickCoordinates[0] === x && lastLabelClickCoordinates[1] === y) {
+ return; // input click triggered by label click
+ }
+ // reset label click coordinates on first subsequent click
+ if (lastLabelClickCoordinates) {
+ lastLabelClickCoordinates = null;
+ }
+ // remember label click coordinates to prevent click busting of trigger click event on input
+ if (nodeName_(event.target) === 'label') {
+ lastLabelClickCoordinates = [x, y];
+ }
+
+ // Look for an allowable region containing this click.
+ // If we find one, that means it was created by touchstart and not removed by
+ // preventGhostClick, so we don't bust it.
+ if (checkAllowableRegions(touchCoordinates, x, y)) {
+ return;
+ }
+
+ // If we didn't find an allowable region, bust the click.
+ event.stopPropagation();
+ event.preventDefault();
+
+ // Blur focused form elements
+ event.target && event.target.blur && event.target.blur();
+ }
+
+
+ // Global touchstart handler that creates an allowable region for a click event.
+ // This allowable region can be removed by preventGhostClick if we want to bust it.
+ function onTouchStart(event) {
+ var touches = event.touches && event.touches.length ? event.touches : [event];
+ var x = touches[0].clientX;
+ var y = touches[0].clientY;
+ touchCoordinates.push(x, y);
+
+ $timeout(function() {
+ // Remove the allowable region.
+ for (var i = 0; i < touchCoordinates.length; i += 2) {
+ if (touchCoordinates[i] == x && touchCoordinates[i + 1] == y) {
+ touchCoordinates.splice(i, i + 2);
+ return;
+ }
+ }
+ }, PREVENT_DURATION, false);
+ }
+
+ // On the first call, attaches some event handlers. Then whenever it gets called, it creates a
+ // zone around the touchstart where clicks will get busted.
+ function preventGhostClick(x, y) {
+ if (!touchCoordinates) {
+ $rootElement[0].addEventListener('click', onClick, true);
+ $rootElement[0].addEventListener('touchstart', onTouchStart, true);
+ touchCoordinates = [];
+ }
+
+ lastPreventedTime = Date.now();
+
+ checkAllowableRegions(touchCoordinates, x, y);
+ }
+
+ // Actual linking function.
+ return function(scope, element, attr) {
+ var clickHandler = $parse(attr.ngClick),
+ tapping = false,
+ tapElement, // Used to blur the element after a tap.
+ startTime, // Used to check if the tap was held too long.
+ touchStartX,
+ touchStartY;
+
+ function resetState() {
+ tapping = false;
+ element.removeClass(ACTIVE_CLASS_NAME);
+ }
+
+ element.on('touchstart', function(event) {
+ tapping = true;
+ tapElement = event.target ? event.target : event.srcElement; // IE uses srcElement.
+ // Hack for Safari, which can target text nodes instead of containers.
+ if (tapElement.nodeType == 3) {
+ tapElement = tapElement.parentNode;
+ }
+
+ element.addClass(ACTIVE_CLASS_NAME);
+
+ startTime = Date.now();
+
+ // Use jQuery originalEvent
+ var originalEvent = event.originalEvent || event;
+ var touches = originalEvent.touches && originalEvent.touches.length ? originalEvent.touches : [originalEvent];
+ var e = touches[0];
+ touchStartX = e.clientX;
+ touchStartY = e.clientY;
+ });
+
+ element.on('touchcancel', function(event) {
+ resetState();
+ });
+
+ element.on('touchend', function(event) {
+ var diff = Date.now() - startTime;
+
+ // Use jQuery originalEvent
+ var originalEvent = event.originalEvent || event;
+ var touches = (originalEvent.changedTouches && originalEvent.changedTouches.length) ?
+ originalEvent.changedTouches :
+ ((originalEvent.touches && originalEvent.touches.length) ? originalEvent.touches : [originalEvent]);
+ var e = touches[0];
+ var x = e.clientX;
+ var y = e.clientY;
+ var dist = Math.sqrt(Math.pow(x - touchStartX, 2) + Math.pow(y - touchStartY, 2));
+
+ if (tapping && diff < TAP_DURATION && dist < MOVE_TOLERANCE) {
+ // Call preventGhostClick so the clickbuster will catch the corresponding click.
+ preventGhostClick(x, y);
+
+ // Blur the focused element (the button, probably) before firing the callback.
+ // This doesn't work perfectly on Android Chrome, but seems to work elsewhere.
+ // I couldn't get anything to work reliably on Android Chrome.
+ if (tapElement) {
+ tapElement.blur();
+ }
+
+ if (!angular.isDefined(attr.disabled) || attr.disabled === false) {
+ element.triggerHandler('click', [event]);
+ }
+ }
+
+ resetState();
+ });
+
+ // Hack for iOS Safari's benefit. It goes searching for onclick handlers and is liable to click
+ // something else nearby.
+ element.onclick = function(event) { };
+
+ // Actual click handler.
+ // There are three different kinds of clicks, only two of which reach this point.
+ // - On desktop browsers without touch events, their clicks will always come here.
+ // - On mobile browsers, the simulated "fast" click will call this.
+ // - But the browser's follow-up slow click will be "busted" before it reaches this handler.
+ // Therefore it's safe to use this directive on both mobile and desktop.
+ element.on('click', function(event, touchend) {
+ scope.$apply(function() {
+ clickHandler(scope, {$event: (touchend || event)});
+ });
+ });
+
+ element.on('mousedown', function(event) {
+ element.addClass(ACTIVE_CLASS_NAME);
+ });
+
+ element.on('mousemove mouseup', function(event) {
+ element.removeClass(ACTIVE_CLASS_NAME);
+ });
+
+ };
+}];
+
+/* global ngTouch: false */
+
+/**
+ * @ngdoc directive
+ * @name ngSwipeLeft
+ *
+ * @description
+ * Specify custom behavior when an element is swiped to the left on a touchscreen device.
+ * A leftward swipe is a quick, right-to-left slide of the finger.
+ * Though ngSwipeLeft is designed for touch-based devices, it will work with a mouse click and drag
+ * too.
+ *
+ * To disable the mouse click and drag functionality, add `ng-swipe-disable-mouse` to
+ * the `ng-swipe-left` or `ng-swipe-right` DOM Element.
+ *
+ * Requires the {@link ngTouch `ngTouch`} module to be installed.
+ *
+ * @element ANY
+ * @param {expression} ngSwipeLeft {@link guide/expression Expression} to evaluate
+ * upon left swipe. (Event object is available as `$event`)
+ *
+ * @example
+
+
+
+ Some list content, like an email in the inbox
+
+
+
+
+
+
+
+ angular.module('ngSwipeLeftExample', ['ngTouch']);
+
+
+ */
+
+/**
+ * @ngdoc directive
+ * @name ngSwipeRight
+ *
+ * @description
+ * Specify custom behavior when an element is swiped to the right on a touchscreen device.
+ * A rightward swipe is a quick, left-to-right slide of the finger.
+ * Though ngSwipeRight is designed for touch-based devices, it will work with a mouse click and drag
+ * too.
+ *
+ * Requires the {@link ngTouch `ngTouch`} module to be installed.
+ *
+ * @element ANY
+ * @param {expression} ngSwipeRight {@link guide/expression Expression} to evaluate
+ * upon right swipe. (Event object is available as `$event`)
+ *
+ * @example
+
+
+
+ Some list content, like an email in the inbox
+
+
+
+
+
+
+
+ angular.module('ngSwipeRightExample', ['ngTouch']);
+
+
+ */
+
+function makeSwipeDirective(directiveName, direction, eventName) {
+ ngTouch.directive(directiveName, ['$parse', '$swipe', function($parse, $swipe) {
+ // The maximum vertical delta for a swipe should be less than 75px.
+ var MAX_VERTICAL_DISTANCE = 75;
+ // Vertical distance should not be more than a fraction of the horizontal distance.
+ var MAX_VERTICAL_RATIO = 0.3;
+ // At least a 30px lateral motion is necessary for a swipe.
+ var MIN_HORIZONTAL_DISTANCE = 30;
+
+ return function(scope, element, attr) {
+ var swipeHandler = $parse(attr[directiveName]);
+
+ var startCoords, valid;
+
+ function validSwipe(coords) {
+ // Check that it's within the coordinates.
+ // Absolute vertical distance must be within tolerances.
+ // Horizontal distance, we take the current X - the starting X.
+ // This is negative for leftward swipes and positive for rightward swipes.
+ // After multiplying by the direction (-1 for left, +1 for right), legal swipes
+ // (ie. same direction as the directive wants) will have a positive delta and
+ // illegal ones a negative delta.
+ // Therefore this delta must be positive, and larger than the minimum.
+ if (!startCoords) return false;
+ var deltaY = Math.abs(coords.y - startCoords.y);
+ var deltaX = (coords.x - startCoords.x) * direction;
+ return valid && // Short circuit for already-invalidated swipes.
+ deltaY < MAX_VERTICAL_DISTANCE &&
+ deltaX > 0 &&
+ deltaX > MIN_HORIZONTAL_DISTANCE &&
+ deltaY / deltaX < MAX_VERTICAL_RATIO;
+ }
+
+ var pointerTypes = ['touch'];
+ if (!angular.isDefined(attr['ngSwipeDisableMouse'])) {
+ pointerTypes.push('mouse');
+ }
+ $swipe.bind(element, {
+ 'start': function(coords, event) {
+ startCoords = coords;
+ valid = true;
+ },
+ 'cancel': function(event) {
+ valid = false;
+ },
+ 'end': function(coords, event) {
+ if (validSwipe(coords)) {
+ scope.$apply(function() {
+ element.triggerHandler(eventName);
+ swipeHandler(scope, {$event: event});
+ });
+ }
+ }
+ }, pointerTypes);
+ };
+ }]);
+}
+
+// Left is negative X-coordinate, right is positive.
+makeSwipeDirective('ngSwipeLeft', -1, 'swipeleft');
+makeSwipeDirective('ngSwipeRight', 1, 'swiperight');
+
+
+
+})(window, window.angular);
diff --git a/static/js/angular-touch.min.js b/static/js/angular-touch.min.js
new file mode 100644
index 0000000..91403d9
--- /dev/null
+++ b/static/js/angular-touch.min.js
@@ -0,0 +1,14 @@
+/*
+ AngularJS v1.5.3
+ (c) 2010-2016 Google, Inc. http://angularjs.org
+ License: MIT
+*/
+(function(x,n,y){'use strict';function s(f,k){var e=!1,a=!1;this.ngClickOverrideEnabled=function(b){return n.isDefined(b)?(b&&!a&&(a=!0,t.$$moduleName="ngTouch",k.directive("ngClick",t),f.decorator("ngClickDirective",["$delegate",function(a){if(e)a.shift();else for(var b=a.length-1;0<=b;){if("ngTouch"===a[b].$$moduleName){a.splice(b,1);break}b--}return a}])),e=b,this):e};this.$get=function(){return{ngClickOverrideEnabled:function(){return e}}}}function v(f,k,e){p.directive(f,["$parse","$swipe",function(a,
+b){return function(l,u,g){function h(c){if(!d)return!1;var a=Math.abs(c.y-d.y);c=(c.x-d.x)*k;return r&&75>a&&0a/c}var m=a(g[f]),d,r,c=["touch"];n.isDefined(g.ngSwipeDisableMouse)||c.push("mouse");b.bind(u,{start:function(c,a){d=c;r=!0},cancel:function(c){r=!1},end:function(c,d){h(c)&&l.$apply(function(){u.triggerHandler(e);m(l,{$event:d})})}},c)}}])}var p=n.module("ngTouch",[]);p.provider("$touch",s);s.$inject=["$provide","$compileProvider"];p.factory("$swipe",[function(){function f(a){a=
+a.originalEvent||a;var b=a.touches&&a.touches.length?a.touches:[a];a=a.changedTouches&&a.changedTouches[0]||b[0];return{x:a.clientX,y:a.clientY}}function k(a,b){var l=[];n.forEach(a,function(a){(a=e[a][b])&&l.push(a)});return l.join(" ")}var e={mouse:{start:"mousedown",move:"mousemove",end:"mouseup"},touch:{start:"touchstart",move:"touchmove",end:"touchend",cancel:"touchcancel"}};return{bind:function(a,b,l){var e,g,h,m,d=!1;l=l||["mouse","touch"];a.on(k(l,"start"),function(c){h=f(c);d=!0;g=e=0;m=
+h;b.start&&b.start(h,c)});var r=k(l,"cancel");if(r)a.on(r,function(c){d=!1;b.cancel&&b.cancel(c)});a.on(k(l,"move"),function(c){if(d&&h){var a=f(c);e+=Math.abs(a.x-m.x);g+=Math.abs(a.y-m.y);m=a;10>e&&10>g||(g>e?(d=!1,b.cancel&&b.cancel(c)):(c.preventDefault(),b.move&&b.move(a,c)))}});a.on(k(l,"end"),function(c){d&&(d=!1,b.end&&b.end(f(c),c))})}}}]);var t=["$parse","$timeout","$rootElement",function(f,k,e){function a(a,d,b){for(var c=0;cMath.abs(a[c]-d)&&25>Math.abs(g-
+e))return a.splice(c,c+2),!0}return!1}function b(b){if(!(2500e&&1>d||h&&h[0]===e&&h[1]===d)){h&&(h=null);var c=b.target;"label"===n.lowercase(c.nodeName||c[0]&&c[0].nodeName)&&(h=[e,d]);a(g,e,d)||(b.stopPropagation(),b.preventDefault(),b.target&&b.target.blur&&b.target.blur())}}}function l(a){a=a.touches&&a.touches.length?a.touches:[a];var b=a[0].clientX,e=a[0].clientY;g.push(b,e);k(function(){for(var a=
+0;ah&&12>v&&(g||(e[0].addEventListener("click",b,!0),e[0].addEventListener("touchstart",l,!0),g=[]),u=Date.now(),a(g,f,m),q&&q.blur(),n.isDefined(k.disabled)&&!1!==k.disabled||d.triggerHandler("click",[c]));w=!1;d.removeClass("ng-click-active")});d.onclick=function(a){};d.on("click",function(a,b){h.$apply(function(){c(h,
+{$event:b||a})})});d.on("mousedown",function(a){d.addClass("ng-click-active")});d.on("mousemove mouseup",function(a){d.removeClass("ng-click-active")})}}];v("ngSwipeLeft",-1,"swipeleft");v("ngSwipeRight",1,"swiperight")})(window,window.angular);
+//# sourceMappingURL=angular-touch.min.js.map
diff --git a/static/js/angular-touch.min.js.map b/static/js/angular-touch.min.js.map
new file mode 100644
index 0000000..9267ec8
--- /dev/null
+++ b/static/js/angular-touch.min.js.map
@@ -0,0 +1,8 @@
+{
+"version":3,
+"file":"angular-touch.min.js",
+"lineCount":13,
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