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1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 2012 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 #ifndef CCActiveAnimation_h | 5 #ifndef CCActiveAnimation_h |
6 #define CCActiveAnimation_h | 6 #define CCActiveAnimation_h |
7 | 7 |
8 #include <wtf/Noncopyable.h> | 8 #include <wtf/Noncopyable.h> |
9 #include <wtf/OwnPtr.h> | 9 #include <wtf/OwnPtr.h> |
10 #include <wtf/PassOwnPtr.h> | 10 #include <wtf/PassOwnPtr.h> |
11 | 11 |
12 namespace WebCore { | 12 namespace cc { |
13 | 13 |
14 class CCAnimationCurve; | 14 class CCAnimationCurve; |
15 | 15 |
16 // A CCActiveAnimation, contains all the state required to play a CCAnimationCur
ve. | 16 // A CCActiveAnimation, contains all the state required to play a CCAnimationCur
ve. |
17 // Specifically, the affected property, the run state (paused, finished, etc.), | 17 // Specifically, the affected property, the run state (paused, finished, etc.), |
18 // loop count, last pause time, and the total time spent paused. | 18 // loop count, last pause time, and the total time spent paused. |
19 class CCActiveAnimation { | 19 class CCActiveAnimation { |
20 WTF_MAKE_NONCOPYABLE(CCActiveAnimation); | 20 WTF_MAKE_NONCOPYABLE(CCActiveAnimation); |
21 public: | 21 public: |
22 // Animations begin in one of the 'waiting' states. Animations waiting for t
he next tick | 22 // Animations begin in one of the 'waiting' states. Animations waiting for t
he next tick |
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149 // Animations lead dual lives. An active animation will be conceptually owne
d by | 149 // Animations lead dual lives. An active animation will be conceptually owne
d by |
150 // two controllers, one on the impl thread and one on the main. In reality,
there | 150 // two controllers, one on the impl thread and one on the main. In reality,
there |
151 // will be two separate CCActiveAnimation instances for the same animation.
They | 151 // will be two separate CCActiveAnimation instances for the same animation.
They |
152 // will have the same group id and the same target property (these two value
s | 152 // will have the same group id and the same target property (these two value
s |
153 // uniquely identify an animation). The instance on the impl thread is the i
nstance | 153 // uniquely identify an animation). The instance on the impl thread is the i
nstance |
154 // that ultimately controls the values of the animating layer and so we will
refer | 154 // that ultimately controls the values of the animating layer and so we will
refer |
155 // to it as the 'controlling instance'. | 155 // to it as the 'controlling instance'. |
156 bool m_isControllingInstance; | 156 bool m_isControllingInstance; |
157 }; | 157 }; |
158 | 158 |
159 } // namespace WebCore | 159 } // namespace cc |
160 | 160 |
161 #endif // CCActiveAnimation_h | 161 #endif // CCActiveAnimation_h |
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