Revert "Update all Angular libs (run update_all.sh)."

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

-part of angular.animate;
-
-/**
- * [Animation] implementation for handling the standard angular 'event' and
- * 'event-active' class pattern with css. This will compute transition and
- * animation duration from the css classes and use it to complete futures when
- * the css animations complete.
- */
-class CssAnimation extends LoopedAnimation {
-  final CssAnimationMap _animationMap;
-  final AnimationOptimizer _optimizer;
-
-  final dom.Element element;
-  final String addAtStart;
-  final String addAtEnd;
-  final String removeAtStart;
-  final String removeAtEnd;
-
-  final String eventClass;
-  final String activeClass;
-
-  final _completer = new Completer<AnimationResult>.sync();
-
-  static const EXTRA_DURATION = 16.0; // Just a little extra time
-
-  bool _active = true;
-  bool _started = false;
-  bool _isDisplayNone = false;
-
-  Future<AnimationResult> get onCompleted => _completer.future;
-
-  num _startTime;
-  num _duration;
-
-  CssAnimation(
-      this.element,
-      this.eventClass,
-      this.activeClass,
-      { this.addAtStart,
-        this.removeAtStart,
-        this.addAtEnd,
-        this.removeAtEnd,
-        CssAnimationMap animationMap,
-        AnimationOptimizer optimizer })
-      : _animationMap = animationMap,
-        _optimizer = optimizer
-  {
-    if (_optimizer != null) _optimizer.track(this, element);
-    if (_animationMap != null) _animationMap.track(this);
-    element.classes.add(eventClass);
-    if (addAtStart != null) element.classes.add(addAtStart);
-    if (removeAtStart != null) element.classes.remove(removeAtStart);
-  }
-
-  void read(num timeInMs) {
-    if (_active && _startTime == null) {
-      _startTime = timeInMs;
-      var style = element.getComputedStyle();
-      _isDisplayNone = style.display == "none";
-      _duration = util.computeLongestTransition(style);
-      if (_duration > 0.0) {
-        // Add a little extra time just to make sure transitions
-        // fully complete and that we don't remove the animation classes
-        // before it's completed.
-        _duration = _duration + EXTRA_DURATION;
-      }
-    }
-  }
-
-  bool update(num timeInMs) {
-    if (!_active) return false;
-
-    if (timeInMs >= _startTime + _duration) {
-      _complete(AnimationResult.COMPLETED);
-
-      // TODO(codelogic): If the initial frame takes a significant amount of
-      //   time, the computed duration + startTime might not actually represent
-      //   the end of the animation
-      // Done with the animation
-      return false;
-    } else if (!_started) {
-      // This will always run after the first animationFrame is queued so that
-      // inserted elements have the base event class applied before adding the
-      // active class to the element. If this is not done, inserted dom nodes
-      // will not run their enter animation.
-
-      if (_isDisplayNone && removeAtEnd != null) {
-        element.classes.remove(removeAtEnd);
-      }
-
-      element.classes.add(activeClass);
-      _started = true;
-    }
-
-    // Continue updating
-    return true;
-  }
-
-  void cancel() {
-    if (_active) {
-      _detach();
-      if (addAtStart != null) element.classes.remove(addAtStart);
-      if (removeAtStart != null) element.classes.add(removeAtStart);
-      if (_completer != null) _completer.complete(AnimationResult.CANCELED);
-    }
-  }
-
-  void complete() {
-    _complete(AnimationResult.COMPLETED_IGNORED);
-  }
-
-  // Since there are two different ways to 'complete' an animation, this lets us
-  // configure the final result.
-  void _complete(AnimationResult result) {
-    if (_active) {
-      _detach();
-      if (addAtEnd != null) element.classes.add(addAtEnd);
-      if (removeAtEnd != null) element.classes.remove(removeAtEnd);
-      _completer.complete(result);
-    }
-  }
-
-  // Cleanup css event classes.
-  void _detach() {
-    _active = false;
-
-    if (_animationMap != null) _animationMap.forget(this);
-    if (_optimizer != null) _optimizer.forget(this);
-
-    element.classes..remove(eventClass)..remove(activeClass);
-  }
-}