| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef Player_h |
| #define Player_h |
| |
| #include "core/animation/TimedItem.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace WebCore { |
| |
| class DocumentTimeline; |
| class ExceptionState; |
| |
| class Player FINAL : public RefCounted<Player> { |
| |
| public: |
| ~Player(); |
| static PassRefPtr<Player> create(DocumentTimeline&, TimedItem*); |
| |
| // Returns whether this player is still current or in effect. |
| // timeToEffectChange returns: |
| // infinity - if this player is no longer in effect |
| // 0 - if this player requires an update on the next frame |
| // n - if this player requires an update after 'n' units of time |
| bool update(double* timeToEffectChange = 0, bool* didTriggerStyleRecalc = 0); |
| |
| void cancel(); |
| |
| double currentTime(); |
| void setCurrentTime(double newCurrentTime); |
| |
| bool paused() const { return m_paused && !m_isPausedForTesting; } |
| void pause(); |
| void play(); |
| void reverse(); |
| void finish(ExceptionState&); |
| bool finished() { return limited(currentTime()); } |
| |
| double playbackRate() const { return m_playbackRate; } |
| void setPlaybackRate(double); |
| const DocumentTimeline& timeline() const { return m_timeline; } |
| DocumentTimeline& timeline() { return m_timeline; } |
| |
| bool hasStartTime() const { return !isNull(m_startTime); } |
| double startTime() const { return m_startTime; } |
| void setStartTime(double); |
| |
| TimedItem* source() { return m_content.get(); } |
| TimedItem* source(bool& isNull) { isNull = !m_content; return m_content.get(); } |
| void setSource(TimedItem*); |
| |
| double timeLag() { return currentTimeWithoutLag() - currentTime(); } |
| |
| // Pausing via this method is not reflected in the value returned by |
| // paused() and must never overlap with pausing via pause(). |
| void pauseForTesting(double pauseTime); |
| // This should only be used for CSS |
| void unpause(); |
| |
| void setNeedsUpdate(); |
| bool needsUpdate() { return m_needsUpdate; } |
| |
| bool maybeStartAnimationOnCompositor(); |
| void cancelAnimationOnCompositor(); |
| bool hasActiveAnimationsOnCompositor(); |
| |
| private: |
| Player(DocumentTimeline&, TimedItem*); |
| double sourceEnd() const; |
| bool limited(double currentTime) const; |
| double currentTimeWithoutLag() const; |
| double currentTimeWithLag() const; |
| void updateTimingState(double newCurrentTime); |
| void updateCurrentTimingState(); |
| |
| double m_playbackRate; |
| double m_startTime; |
| double m_holdTime; |
| double m_storedTimeLag; |
| |
| RefPtr<TimedItem> m_content; |
| DocumentTimeline& m_timeline; |
| // Reflects all pausing, including via pauseForTesting(). |
| bool m_paused; |
| bool m_held; |
| bool m_isPausedForTesting; |
| |
| bool m_needsUpdate; |
| }; |
| |
| } // namespace |
| |
| #endif |