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1 // Copyright (c) 2017 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 #ifndef SmoothScrollSequencer_h | |
5 #define SmoothScrollSequencer_h | |
6 | |
7 #include <utility> | |
8 #include <vector> | |
9 #include "platform/scroll/ProgrammaticScrollAnimatorClient.h" | |
10 #include "platform/scroll/ScrollTypes.h" | |
11 | |
12 namespace blink { | |
13 | |
14 class ScrollableArea; | |
15 | |
16 class PLATFORM_EXPORT SmoothScrollSequencer | |
bokan
2017/04/07 15:56:52
Please add a class-level comment about what this c
sunyunjia
2017/05/12 18:40:25
Done.
| |
17 : public ProgrammaticScrollAnimatorClient { | |
18 public: | |
19 static SmoothScrollSequencer* create(); | |
20 | |
21 ~SmoothScrollSequencer(); | |
22 | |
23 // Add a scroll offset animation to the back of a queue. | |
24 void queueAnimation(ScrollableArea*, ScrollOffset); | |
25 | |
26 // Run the animation at the back of the queue and sets itself as a client | |
27 // of ProgrammaticScrollAnimator to receive finish notification. | |
28 void runQueuedAnimations(); | |
29 | |
30 // Pop the back of the queue and run the next animation in the queue. | |
31 void notifyAnimationFinished(); | |
32 | |
33 // Abort the currently running anmation and all the animations in the queue. | |
34 void abortAnimations(); | |
35 | |
36 protected: | |
37 explicit SmoothScrollSequencer(); | |
bokan
2017/04/07 15:56:52
There's no argument here so there's no implicit co
sunyunjia
2017/05/12 18:40:25
Done.
| |
38 | |
39 private: | |
40 typedef std::pair<Member<ScrollableArea>, ScrollOffset> ScrollerAndOffsetPair; | |
41 std::vector<ScrollerAndOffsetPair> m_queue; | |
42 }; | |
43 | |
44 } // namespace blink | |
45 | |
46 #endif // SmoothScrollSequencer_h | |
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