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32 #include "core/animation/css/CSSPendingAnimations.h"
34 #include "core/animation/Animation.h"
35 #include "core/animation/DocumentTimeline.h"
36 #include "core/frame/FrameView.h"
37 #include "core/page/Page.h"
38 #include "core/rendering/RenderLayer.h"
42 void CSSPendingAnimations::add(AnimationPlayer* player)
44 ASSERT(player->source()->isAnimation());
46 Page* page = player->timeline()->document()->page();
47 bool visible = page && page->visibilityState() == PageVisibilityStateVisible;
48 if (!player->hasStartTime() && !visible) {
49 player->setStartTime(player->timeline()->currentTime());
53 m_pending.append(player);
56 bool CSSPendingAnimations::startPendingAnimations()
58 bool startedOnCompositor = false;
59 for (size_t i = 0; i < m_pending.size(); ++i) {
60 if (m_pending[i]->maybeStartAnimationOnCompositor())
61 startedOnCompositor = true;
64 // If any animations were started on the compositor, all remaining
65 // need to wait for a synchronized start time. Otherwise they may
67 if (startedOnCompositor) {
68 for (size_t i = 0; i < m_pending.size(); ++i)
69 m_waitingForCompositorAnimationStart.append(m_pending[i]);
71 for (size_t i = 0; i < m_pending.size(); ++i) {
72 m_pending[i]->setStartTime(m_pending[i]->timeline()->currentTime());
73 m_pending[i]->update();
78 if (startedOnCompositor || m_waitingForCompositorAnimationStart.isEmpty())
79 return !m_waitingForCompositorAnimationStart.isEmpty();
81 // Check if we're still waiting for any compositor animations to start.
82 for (size_t i = 0; i < m_waitingForCompositorAnimationStart.size(); ++i) {
83 if (m_waitingForCompositorAnimationStart[i].get()->hasActiveAnimationsOnCompositor())
87 // If not, go ahead and start any animations that were waiting.
88 notifyCompositorAnimationStarted(monotonicallyIncreasingTime());
92 void CSSPendingAnimations::notifyCompositorAnimationStarted(double monotonicAnimationStartTime)
94 for (size_t i = 0; i < m_waitingForCompositorAnimationStart.size(); ++i) {
95 AnimationPlayer* player = m_waitingForCompositorAnimationStart[i].get();
96 player->setStartTime(monotonicAnimationStartTime - player->timeline()->zeroTime());
100 m_waitingForCompositorAnimationStart.clear();