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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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
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