OLD | NEW |
1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 import 'dart:async'; | 5 import 'dart:async'; |
6 | 6 |
7 import '../framework/animation/animated_value.dart'; | 7 import '../framework/animation/animated_value.dart'; |
8 import 'basic.dart'; | 8 import 'basic.dart'; |
9 | 9 |
10 typedef void SetterFunction(double value); | 10 typedef void SetterFunction(double value); |
11 | 11 |
12 class _AnimationEntry { | 12 class _AnimationEntry { |
13 _AnimationEntry(this.value, this.setter); | 13 _AnimationEntry(this.value, this.setter); |
14 final AnimatedValue value; | 14 final AnimatedValue value; |
15 final SetterFunction setter; | 15 final SetterFunction setter; |
16 StreamSubscription<double> subscription; | 16 StreamSubscription<double> subscription; |
17 } | 17 } |
18 | 18 |
19 abstract class AnimatedComponent extends Component { | 19 abstract class AnimatedComponent extends Component { |
20 | 20 |
21 AnimatedComponent({ Object key }) : super(key: key, stateful: true); | 21 AnimatedComponent({ String key }) : super(key: key, stateful: true); |
22 | 22 |
23 void syncFields(AnimatedComponent source) { } | 23 void syncFields(AnimatedComponent source) { } |
24 | 24 |
25 List<_AnimationEntry> _animatedFields = new List<_AnimationEntry>(); | 25 List<_AnimationEntry> _animatedFields = new List<_AnimationEntry>(); |
26 | 26 |
27 animate(AnimatedValue value, SetterFunction setter) { | 27 animate(AnimatedValue value, SetterFunction setter) { |
28 assert(!mounted); | 28 assert(!mounted); |
29 setter(value.value); | 29 setter(value.value); |
30 _animatedFields.add(new _AnimationEntry(value, setter)); | 30 _animatedFields.add(new _AnimationEntry(value, setter)); |
31 } | 31 } |
(...skipping 11 matching lines...) Expand all Loading... |
43 void didUnmount() { | 43 void didUnmount() { |
44 for (_AnimationEntry entry in _animatedFields) { | 44 for (_AnimationEntry entry in _animatedFields) { |
45 assert(entry.subscription != null); | 45 assert(entry.subscription != null); |
46 entry.subscription.cancel(); | 46 entry.subscription.cancel(); |
47 entry.subscription = null; | 47 entry.subscription = null; |
48 } | 48 } |
49 super.didUnmount(); | 49 super.didUnmount(); |
50 } | 50 } |
51 | 51 |
52 } | 52 } |
OLD | NEW |