/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=8 sts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this file, * You can obtain one at http://mozilla.org/MPL/2.0/. */ #include "PendingAnimationTracker.h" #include "mozilla/dom/AnimationTimeline.h" #include "nsIFrame.h" #include "nsIPresShell.h" using namespace mozilla; namespace mozilla { NS_IMPL_CYCLE_COLLECTION(PendingAnimationTracker, mPlayPendingSet, mPausePendingSet, mDocument) NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(PendingAnimationTracker, AddRef) NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(PendingAnimationTracker, Release) void PendingAnimationTracker::AddPending(dom::Animation& aAnimation, AnimationSet& aSet) { aSet.PutEntry(&aAnimation); // Schedule a paint. Otherwise animations that don't trigger a paint by // themselves (e.g. CSS animations with an empty keyframes rule) won't // start until something else paints. EnsurePaintIsScheduled(); } void PendingAnimationTracker::RemovePending(dom::Animation& aAnimation, AnimationSet& aSet) { aSet.RemoveEntry(&aAnimation); } bool PendingAnimationTracker::IsWaiting(const dom::Animation& aAnimation, const AnimationSet& aSet) const { return aSet.Contains(const_cast<dom::Animation*>(&aAnimation)); } void PendingAnimationTracker::TriggerPendingAnimationsOnNextTick(const TimeStamp& aReadyTime) { auto triggerAnimationsAtReadyTime = [aReadyTime](AnimationSet& aAnimationSet) { for (auto iter = aAnimationSet.Iter(); !iter.Done(); iter.Next()) { dom::Animation* animation = iter.Get()->GetKey(); dom::AnimationTimeline* timeline = animation->GetTimeline(); // If the animation does not have a timeline, just drop it from the map. // The animation will detect that it is not being tracked and will trigger // itself on the next tick where it has a timeline. if (!timeline) { iter.Remove(); continue; } // When the timeline's refresh driver is under test control, its values // have no correspondance to wallclock times so we shouldn't try to // convert aReadyTime (which is a wallclock time) to a timeline value. // Instead, the animation will be started/paused when the refresh driver // is next advanced since this will trigger a call to // TriggerPendingAnimationsNow. if (!timeline->TracksWallclockTime()) { continue; } Nullable<TimeDuration> readyTime = timeline->ToTimelineTime(aReadyTime); animation->TriggerOnNextTick(readyTime); iter.Remove(); } }; triggerAnimationsAtReadyTime(mPlayPendingSet); triggerAnimationsAtReadyTime(mPausePendingSet); } void PendingAnimationTracker::TriggerPendingAnimationsNow() { auto triggerAndClearAnimations = [](AnimationSet& aAnimationSet) { for (auto iter = aAnimationSet.Iter(); !iter.Done(); iter.Next()) { iter.Get()->GetKey()->TriggerNow(); } aAnimationSet.Clear(); }; triggerAndClearAnimations(mPlayPendingSet); triggerAndClearAnimations(mPausePendingSet); } void PendingAnimationTracker::EnsurePaintIsScheduled() { if (!mDocument) { return; } nsIPresShell* presShell = mDocument->GetShell(); if (!presShell) { return; } nsIFrame* rootFrame = presShell->GetRootFrame(); if (!rootFrame) { return; } rootFrame->SchedulePaint(); } } // namespace mozilla