зеркало из https://github.com/mozilla/gecko-dev.git
87 строки
2.5 KiB
C++
87 строки
2.5 KiB
C++
/* vim: set shiftwidth=2 tabstop=8 autoindent cindent expandtab: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_PendingPlayerTracker_h
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#define mozilla_dom_PendingPlayerTracker_h
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#include "mozilla/dom/AnimationPlayer.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIDocument.h"
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#include "nsTHashtable.h"
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class nsIFrame;
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namespace mozilla {
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class PendingPlayerTracker final
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{
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public:
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explicit PendingPlayerTracker(nsIDocument* aDocument)
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: mDocument(aDocument)
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{ }
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NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(PendingPlayerTracker)
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NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(PendingPlayerTracker)
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void AddPlayPending(dom::AnimationPlayer& aPlayer)
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{
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MOZ_ASSERT(!IsWaitingToPause(aPlayer),
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"Player is already waiting to pause");
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AddPending(aPlayer, mPlayPendingSet);
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}
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void RemovePlayPending(dom::AnimationPlayer& aPlayer)
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{
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RemovePending(aPlayer, mPlayPendingSet);
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}
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bool IsWaitingToPlay(const dom::AnimationPlayer& aPlayer) const
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{
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return IsWaiting(aPlayer, mPlayPendingSet);
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}
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void AddPausePending(dom::AnimationPlayer& aPlayer)
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{
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MOZ_ASSERT(!IsWaitingToPlay(aPlayer),
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"Player is already waiting to play");
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AddPending(aPlayer, mPausePendingSet);
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}
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void RemovePausePending(dom::AnimationPlayer& aPlayer)
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{
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RemovePending(aPlayer, mPausePendingSet);
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}
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bool IsWaitingToPause(const dom::AnimationPlayer& aPlayer) const
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{
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return IsWaiting(aPlayer, mPausePendingSet);
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}
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void TriggerPendingPlayersOnNextTick(const TimeStamp& aReadyTime);
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void TriggerPendingPlayersNow();
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bool HasPendingPlayers() const {
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return mPlayPendingSet.Count() > 0 || mPausePendingSet.Count() > 0;
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}
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private:
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~PendingPlayerTracker() { }
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void EnsurePaintIsScheduled();
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typedef nsTHashtable<nsRefPtrHashKey<dom::AnimationPlayer>>
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AnimationPlayerSet;
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void AddPending(dom::AnimationPlayer& aPlayer,
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AnimationPlayerSet& aSet);
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void RemovePending(dom::AnimationPlayer& aPlayer,
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AnimationPlayerSet& aSet);
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bool IsWaiting(const dom::AnimationPlayer& aPlayer,
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const AnimationPlayerSet& aSet) const;
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AnimationPlayerSet mPlayPendingSet;
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AnimationPlayerSet mPausePendingSet;
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nsCOMPtr<nsIDocument> mDocument;
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};
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} // namespace mozilla
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#endif // mozilla_dom_PendingPlayerTracker_h
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