Update all Angular libs (run update_all.sh).

third_party/pkg/angular/lib/animate/module.dart

+/**
+ * CSS animation and DOM lifecycle management for AngularDart apps.
+ *
+ * The [angular.animate](#angular/angular-animate) library makes it easier to build animations
+ * that affect the lifecycle of DOM elements. A useful example of this is animating the
+ * removal of an element from the DOM. In order to do this ideally the
+ * operation should immediatly execute and manipulate the data model,
+ * and the framework should handle the actual remove of the DOM element once
+ * the animation complets. This ensures that the logic and model of the
+ * application is seperated so that the state of the model can be reasoned
+ * about without having to wory about future modifications of the model.
+ * This library uses computed css styles to calculate the total duration
+ * of an animation and handles the addition, removal, and modification of DOM
+ * elements for block level directives such as `ng-if`, `ng-repeat`,
+ * `ng-hide`, and more.
+ *
+ * To use, install the AnimationModule into your main module:
+ *
+ *     var module = new Module()
+ *       ..install(new AnimationModule());
+ *
+ * Once the module has been installed, all block level DOM manipulations will
+ * be routed through the [CssAnimate] class instead of the
+ * default [NgAnimate] implementation. This will, in turn,
+ * perform the tracking, manipulation, and computation for animations.
+ *
+ * As an example of how this works, let's walk through what happens whan an
+ * element is added to the DOM. The [CssAnimate] implementation will add the
+ * `.ng-enter` class to new DOM elements when they are inserted into the DOM
+ * by a directive and will read the computed style. If there is a
+ * transition or keyframe animation, that animation duration will be read,
+ * and the animation will be performed. The `.ng-enter-active` class will be
+ * added to the DOM element to set the target state for transition based
+ * animations. When the animation is complete (determined by the
+ * precomputed duration) the `.ng-enter` and `.ng-enter-active` classes
+ * will be removed from the DOM element.
+ *
+ * When removing elements from the DOM, a simliar pattern is followed. The
+ * `.ng-leave` class will be added to an element, the transition and / or
+ * keyframe animation duration will be computed, and if it is non-zero the
+ * animation will be run by adding the `.ng-leave-active` class. When
+ * the animation completes, the element will be physically removed from the
+ * DOM.
+ *
+ * The same set of steps is run for each of the following types of DOM
+ * manipulation:
+ *
+ * * `.ng-enter`
+ * * `.ng-leave`
+ * * `.ng-move`
+ * * `.{cssclass}-add`
+ * * `.{cssclass}-remove`
+ *
+ * When writing the css for animating a component you should avoid putting
+ * css transitions on elements that might be animated or there may be
+ * unintended pauses or side effects when an element is removed.
+ *
+ * Fade out example:
+ *
+ * HTML:
+ *     <div class="goodbye" ng-if="ctrl.visible">
+ *       Goodbye world!
+ *     </div>
+ *
+ * CSS:
+ *     .goodbye.ng-leave {
+ *       opacity: 1;
+ *       transition: opacity 1s;
+ *     }
+ *     .goodbye.ng-leave.ng-leave-active {
+ *       opacity: 0;
+ *     }
+ *
+ * This will perform a fade out animation on the 'goodby' div when the
+ * `ctrl.visible` property goes from `true` to `false`.
+ *
+ * The [CssAnimate] will also do optimizations on running animations by
+ * preventing child DOM animations with the [AnimationOptimizer]. This
+ * prevents transitions on child elements while the parent is animating,
+ * but will not stop running transitions once they have started.
+ *
+ * Finally, it's possible to change the behavior of the [AnimationOptimizer]
+ * by using the `ng-animate` and `ng-animate-children` with the options
+ * `never`, `always`, or `auto`. `ng-animate` works only on the specific
+ * element it is applied too and will override other optimizations if `never`
+ * or `always` is specified. `ng-animate` defaults to `auto` which will
+ * defer to the `ng-animate-children` on a parent element or the currently
+ * running animation check.
+ *
+ * `ng-animate-children` allows animation to be controlled on large chunks of
+ * DOM. It only affects child elements, and allows the `always`, `never`,
+ * and `auto` values to be specified. Always will always attempt animations
+ * on child DOM directives, never will always prevent them (except in the
+ * case where a given element has `ng-animate="always"` specified),
+ * and `auto` will defer the decision to the currently running animation
+ * check.
+ */
+
+library angular.animate;
+
+import 'dart:async';
+import 'dart:html' as dom;
+
+import 'package:angular/core/annotation.dart';
+import 'package:angular/core/module_internal.dart';
+import 'package:angular/core_dom/module_internal.dart';
+import 'package:angular/core_dom/dom_util.dart' as util;
+import 'package:logging/logging.dart';
+import 'package:perf_api/perf_api.dart';
+import 'package:di/di.dart';
+
+@MirrorsUsed(targets: const [
+    'angular.animate'
+])
+import 'dart:mirrors' show MirrorsUsed;
+
+part 'animations.dart';
+part 'animation_loop.dart';
+part 'animation_optimizer.dart';
+part 'css_animate.dart';
+part 'css_animation.dart';
+part 'ng_animate.dart';
+
+final Logger _logger = new Logger('ng.animate');
+
+/**
+ * Installing the AnimationModule will install a [CssAnimate] implementation of
+ * the [NgAnimate] interface in your application. This will change the behavior
+ * of view construction, and some of the native directives to allow you to add
+ * and define css transition and keyframe animations for the styles of your
+ * elements.
+ * 
+ *   Example html:
+ *
+ *     <div ng-if="ctrl.myBoolean" class="my-div">...</div>
+ *   
+ *   Example css defining an opacity transition over .5 seconds using the
+ *   `.ng-enter` and `.ng-leave` css classes:
+ *
+ *     .my-div.ng-enter {
+ *       transition: all 500ms;
+ *       opacity: 0;
+ *     }
+ *     .my-div.ng-enter-active {
+ *       opacity: 1;
+ *     }
+ *     
+ *     .my-div.ng-leave {
+ *       transition: all 500ms;
+ *       opacity: 1;
+ *     }
+ *     .my-div.ng-leave-active {
+ *       opacity: 0;
+ *     }
+ */
+class AnimationModule extends Module {
+  AnimationModule() {
+    type(AnimationFrame);
+    type(AnimationLoop);
+    type(CssAnimationMap);
+    type(AnimationOptimizer);
+    value(NgAnimate, null);
+    type(NgAnimateChildren);
+    type(Animate, implementedBy: CssAnimate);
+  }
+}