5d807148ef
So that we can now ensure nsRefreshDriver ticks (i.e. nsRefreshDriver doesn't stop its timer) for all queued events. Before this patch, dispatching CSS animation/transition events relied on the fact that DocumentTimeline observes nsRefreshDriver. For this fact, animationcancel or transitioncancel event did not dispatch properly in some cases, i.e. the case where the animation was dropped from the DocumentTimeline. MozReview-Commit-ID: 7JYro0MY2U2
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/AnimationEventDispatcher.h"
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#include "mozilla/EventDispatcher.h"
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#include "nsRefreshDriver.h"
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namespace mozilla {
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NS_IMPL_CYCLE_COLLECTION_CLASS(AnimationEventDispatcher)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(AnimationEventDispatcher)
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tmp->ClearEventQueue();
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(AnimationEventDispatcher)
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for (auto& info : tmp->mPendingEvents) {
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ImplCycleCollectionTraverse(cb, info.mElement,
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"mozilla::AnimationEventDispatcher.mPendingEvents.mElement");
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ImplCycleCollectionTraverse(cb, info.mAnimation,
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"mozilla::AnimationEventDispatcher.mPendingEvents.mAnimation");
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}
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(AnimationEventDispatcher, AddRef)
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NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(AnimationEventDispatcher, Release)
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void
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AnimationEventDispatcher::Disconnect()
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{
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if (mIsObserving) {
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MOZ_ASSERT(mPresContext && mPresContext->RefreshDriver(),
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"The pres context and the refresh driver should be still "
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"alive if we haven't disassociated from the refresh driver");
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mPresContext->RefreshDriver()->CancelPendingAnimationEvents(this);
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mIsObserving = false;
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}
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mPresContext = nullptr;
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}
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void
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AnimationEventDispatcher::QueueEvents(nsTArray<AnimationEventInfo>&& aEvents)
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{
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MOZ_ASSERT(mPresContext,
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"The pres context should be valid");
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mPendingEvents.AppendElements(Move(aEvents));
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mIsSorted = false;
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if (!mIsObserving) {
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mPresContext->RefreshDriver()->ScheduleAnimationEventDispatch(this);
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mIsObserving = true;
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}
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}
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} // namespace mozilla
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