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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 "base/basictypes.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 cc { | 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); | |
| 21 public: | 20 public: |
| 22 // Animations begin in one of the 'waiting' states. Animations waiting for t
he next tick | 21 // Animations begin in one of the 'waiting' states. Animations waiting for t
he next tick |
| 23 // will start the next time the controller animates. Animations waiting for
target | 22 // will start the next time the controller animates. Animations waiting for
target |
| 24 // availibility will run as soon as their target property is free (and all t
he animations | 23 // availibility will run as soon as their target property is free (and all t
he animations |
| 25 // animating with it are also able to run). Animations waiting for their sta
rt time to | 24 // animating with it are also able to run). Animations waiting for their sta
rt time to |
| 26 // come have be scheduled to run at a particular point in time. When this ti
me arrives, | 25 // come have be scheduled to run at a particular point in time. When this ti
me arrives, |
| 27 // the controller will move the animations into the Running state. Running a
nimations | 26 // the controller will move the animations into the Running state. Running a
nimations |
| 28 // may toggle between Running and Paused, and may be stopped by moving into
either the | 27 // may toggle between Running and Paused, and may be stopped by moving into
either the |
| 29 // Aborted or Finished states. A Finished animation was allowed to run to co
mpletion, but | 28 // Aborted or Finished states. A Finished animation was allowed to run to co
mpletion, but |
| 30 // an Aborted animation was not. | 29 // an Aborted animation was not. |
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| 147 double m_totalPausedTime; | 146 double m_totalPausedTime; |
| 148 | 147 |
| 149 // Animations lead dual lives. An active animation will be conceptually owne
d by | 148 // 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 | 149 // 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 | 150 // 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 | 151 // 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 | 152 // 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 | 153 // that ultimately controls the values of the animating layer and so we will
refer |
| 155 // to it as the 'controlling instance'. | 154 // to it as the 'controlling instance'. |
| 156 bool m_isControllingInstance; | 155 bool m_isControllingInstance; |
| 156 |
| 157 DISALLOW_COPY_AND_ASSIGN(CCActiveAnimation); |
| 157 }; | 158 }; |
| 158 | 159 |
| 159 } // namespace cc | 160 } // namespace cc |
| 160 | 161 |
| 161 #endif // CCActiveAnimation_h | 162 #endif // CCActiveAnimation_h |
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