gecko-dev/dom/animation/EffectCompositor.cpp

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C++
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Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
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/* -*- 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 "EffectCompositor.h"
#include "mozilla/dom/Animation.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/KeyframeEffectReadOnly.h"
#include "mozilla/AnimationComparator.h"
#include "mozilla/AnimationPerformanceWarning.h"
#include "mozilla/AnimationTarget.h"
#include "mozilla/AnimationUtils.h"
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
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#include "mozilla/EffectSet.h"
#include "mozilla/LayerAnimationInfo.h"
#include "mozilla/RestyleManager.h"
#include "mozilla/RestyleManagerInlines.h"
#include "mozilla/ServoStyleSet.h"
#include "mozilla/StyleAnimationValue.h"
#include "mozilla/TypeTraits.h" // For Forward<>
#include "nsComputedDOMStyle.h" // nsComputedDOMStyle::GetPresShellForContent
#include "nsContentUtils.h"
#include "nsCSSPseudoElements.h"
#include "nsCSSPropertyIDSet.h"
#include "nsCSSProps.h"
#include "nsIAtom.h"
#include "nsIPresShell.h"
#include "nsIPresShellInlines.h"
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
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#include "nsLayoutUtils.h"
#include "nsRuleNode.h" // For nsRuleNode::ComputePropertiesOverridingAnimation
#include "nsRuleProcessorData.h" // For ElementRuleProcessorData etc.
#include "nsTArray.h"
#include <bitset>
#include <initializer_list>
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
using mozilla::dom::Animation;
using mozilla::dom::Element;
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
using mozilla::dom::KeyframeEffectReadOnly;
namespace mozilla {
NS_IMPL_CYCLE_COLLECTION_CLASS(EffectCompositor)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(EffectCompositor)
for (auto& elementSet : tmp->mElementsToRestyle) {
elementSet.Clear();
}
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(EffectCompositor)
for (auto& elementSet : tmp->mElementsToRestyle) {
for (auto iter = elementSet.Iter(); !iter.Done(); iter.Next()) {
CycleCollectionNoteChild(cb, iter.Key().mElement,
"EffectCompositor::mElementsToRestyle[]",
cb.Flags());
}
}
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_ROOT_NATIVE(EffectCompositor, AddRef)
NS_IMPL_CYCLE_COLLECTION_UNROOT_NATIVE(EffectCompositor, Release)
namespace {
enum class MatchForCompositor {
// This animation matches and should run on the compositor if possible.
Yes,
// This (not currently playing) animation matches and can be run on the
// compositor if there are other animations for this property that return
// 'Yes'.
IfNeeded,
// This animation does not match or can't be run on the compositor.
No,
// This animation does not match or can't be run on the compositor and,
// furthermore, its presence means we should not run any animations for this
// property on the compositor.
NoAndBlockThisProperty
};
}
static MatchForCompositor
IsMatchForCompositor(const KeyframeEffectReadOnly& aEffect,
nsCSSPropertyID aProperty,
const nsIFrame* aFrame)
{
const Animation* animation = aEffect.GetAnimation();
MOZ_ASSERT(animation);
if (!animation->IsRelevant()) {
return MatchForCompositor::No;
}
AnimationPerformanceWarning::Type warningType;
if (animation->ShouldBeSynchronizedWithMainThread(aProperty, aFrame,
warningType)) {
EffectCompositor::SetPerformanceWarning(
aFrame, aProperty,
AnimationPerformanceWarning(warningType));
// For a given |aFrame|, we don't want some animations of |aProperty| to
// run on the compositor and others to run on the main thread, so if any
// need to be synchronized with the main thread, run them all there.
return MatchForCompositor::NoAndBlockThisProperty;
}
if (!aEffect.HasEffectiveAnimationOfProperty(aProperty)) {
return MatchForCompositor::No;
}
return animation->IsPlaying()
? MatchForCompositor::Yes
: MatchForCompositor::IfNeeded;
}
// Helper function to factor out the common logic from
// GetAnimationsForCompositor and HasAnimationsForCompositor.
//
// Takes an optional array to fill with eligible animations.
//
// Returns true if there are eligible animations, false otherwise.
bool
FindAnimationsForCompositor(const nsIFrame* aFrame,
nsCSSPropertyID aProperty,
nsTArray<RefPtr<dom::Animation>>* aMatches /*out*/)
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
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{
MOZ_ASSERT(!aMatches || aMatches->IsEmpty(),
"Matches array, if provided, should be empty");
EffectSet* effects = EffectSet::GetEffectSet(aFrame);
if (!effects || effects->IsEmpty()) {
return false;
}
// FIXME: Bug 1334036: stylo: Implement off-main-thread animations.
if (aFrame->StyleContext()->StyleSource().IsServoComputedValues()) {
NS_WARNING("stylo: return false in FindAnimationsForCompositor because "
"haven't supported compositor-driven animations yet");
return false;
}
// First check for newly-started transform animations that should be
// synchronized with geometric animations. We need to do this before any
// other early returns (the one above is ok) since we can only check this
// state when the animation is newly-started.
if (aProperty == eCSSProperty_transform) {
PendingAnimationTracker* tracker =
aFrame->PresContext()->Document()->GetPendingAnimationTracker();
if (tracker) {
tracker->MarkAnimationsThatMightNeedSynchronization();
}
}
// If the property will be added to the animations level of the cascade but
// there is an !important rule for that property in the cascade then the
// animation will not be applied since the !important rule overrides it.
if (effects->PropertiesWithImportantRules().HasProperty(aProperty) &&
effects->PropertiesForAnimationsLevel().HasProperty(aProperty)) {
return false;
}
if (aFrame->RefusedAsyncAnimation()) {
return false;
}
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
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// The animation cascade will almost always be up-to-date by this point
// but there are some cases such as when we are restoring the refresh driver
// from test control after seeking where it might not be the case.
//
// Those cases are probably not important but just to be safe, let's make
// sure the cascade is up to date since if it *is* up to date, this is
// basically a no-op.
Maybe<NonOwningAnimationTarget> pseudoElement =
EffectCompositor::GetAnimationElementAndPseudoForFrame(aFrame);
if (pseudoElement) {
EffectCompositor::MaybeUpdateCascadeResults(pseudoElement->mElement,
pseudoElement->mPseudoType,
aFrame->StyleContext());
}
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
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if (!nsLayoutUtils::AreAsyncAnimationsEnabled()) {
if (nsLayoutUtils::IsAnimationLoggingEnabled()) {
nsCString message;
message.AppendLiteral("Performance warning: Async animations are "
"disabled");
AnimationUtils::LogAsyncAnimationFailure(message);
}
return false;
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
}
// Disable async animations if we have a rendering observer that
// depends on our content (svg masking, -moz-element etc) so that
// it gets updated correctly.
nsIContent* content = aFrame->GetContent();
while (content) {
if (content->HasRenderingObservers()) {
EffectCompositor::SetPerformanceWarning(
aFrame, aProperty,
AnimationPerformanceWarning(
AnimationPerformanceWarning::Type::HasRenderingObserver));
return false;
}
content = content->GetParent();
}
bool foundRunningAnimations = false;
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
for (KeyframeEffectReadOnly* effect : *effects) {
MatchForCompositor matchResult =
IsMatchForCompositor(*effect, aProperty, aFrame);
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
if (matchResult == MatchForCompositor::NoAndBlockThisProperty) {
// For a given |aFrame|, we don't want some animations of |aProperty| to
// run on the compositor and others to run on the main thread, so if any
// need to be synchronized with the main thread, run them all there.
if (aMatches) {
aMatches->Clear();
}
return false;
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
}
if (matchResult == MatchForCompositor::No) {
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
continue;
}
if (aMatches) {
aMatches->AppendElement(effect->GetAnimation());
}
if (matchResult == MatchForCompositor::Yes) {
foundRunningAnimations = true;
}
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
}
// If all animations we added were not currently playing animations, don't
// send them to the compositor.
if (aMatches && !foundRunningAnimations) {
aMatches->Clear();
}
MOZ_ASSERT(!foundRunningAnimations || !aMatches || !aMatches->IsEmpty(),
"If return value is true, matches array should be non-empty");
if (aMatches && foundRunningAnimations) {
aMatches->Sort(AnimationPtrComparator<RefPtr<dom::Animation>>());
}
return foundRunningAnimations;
}
void
EffectCompositor::RequestRestyle(dom::Element* aElement,
CSSPseudoElementType aPseudoType,
RestyleType aRestyleType,
CascadeLevel aCascadeLevel)
{
if (!mPresContext) {
// Pres context will be null after the effect compositor is disconnected.
return;
}
// Ignore animations on orphaned elements.
if (!aElement->IsInComposedDoc()) {
return;
}
auto& elementsToRestyle = mElementsToRestyle[aCascadeLevel];
PseudoElementHashEntry::KeyType key = { aElement, aPseudoType };
if (aRestyleType == RestyleType::Throttled) {
if (!elementsToRestyle.Contains(key)) {
elementsToRestyle.Put(key, false);
}
mPresContext->PresShell()->SetNeedThrottledAnimationFlush();
} else {
// Get() returns 0 if the element is not found. It will also return
// false if the element is found but does not have a pending restyle.
bool hasPendingRestyle = elementsToRestyle.Get(key);
if (!hasPendingRestyle) {
PostRestyleForAnimation(aElement, aPseudoType, aCascadeLevel);
}
elementsToRestyle.Put(key, true);
}
if (aRestyleType == RestyleType::Layer) {
// FIXME: Bug 1334036: we call RequestRestyle for both stylo and gecko,
// so we should make sure we use mAnimationGecneration properly on OMTA.
// Prompt layers to re-sync their animations.
mPresContext->RestyleManager()->IncrementAnimationGeneration();
EffectSet* effectSet =
EffectSet::GetEffectSet(aElement, aPseudoType);
if (effectSet) {
effectSet->UpdateAnimationGeneration(mPresContext);
}
}
}
void
EffectCompositor::PostRestyleForAnimation(dom::Element* aElement,
CSSPseudoElementType aPseudoType,
CascadeLevel aCascadeLevel)
{
if (!mPresContext) {
return;
}
dom::Element* element = GetElementToRestyle(aElement, aPseudoType);
if (!element) {
return;
}
nsRestyleHint hint = aCascadeLevel == CascadeLevel::Transitions ?
eRestyle_CSSTransitions :
eRestyle_CSSAnimations;
if (mPresContext->StyleSet()->IsServo()) {
MOZ_ASSERT(NS_IsMainThread(),
"Restyle request during restyling should be requested only on "
"the main-thread. e.g. after the parallel traversal");
if (ServoStyleSet::IsInServoTraversal()) {
MOZ_ASSERT(hint == eRestyle_CSSAnimations ||
hint == eRestyle_CSSTransitions);
// We can't call Servo_NoteExplicitHints here since AtomicRefCell does not
// allow us mutate ElementData of the |aElement| in SequentialTask.
// Instead we call Servo_NoteExplicitHints for the element in PreTraverse()
// which will be called right before the second traversal that we do for
// updating CSS animations.
// In that case PreTraverse() will return true so that we know to do the
// second traversal so we don't need to post any restyle requests to the
// PresShell.
return;
} else {
MOZ_ASSERT(!mPresContext->RestyleManager()->IsInStyleRefresh());
}
}
mPresContext->PresShell()->RestyleForAnimation(element, hint);
}
void
EffectCompositor::PostRestyleForThrottledAnimations()
{
for (size_t i = 0; i < kCascadeLevelCount; i++) {
CascadeLevel cascadeLevel = CascadeLevel(i);
auto& elementSet = mElementsToRestyle[cascadeLevel];
for (auto iter = elementSet.Iter(); !iter.Done(); iter.Next()) {
bool& postedRestyle = iter.Data();
if (postedRestyle) {
continue;
}
PostRestyleForAnimation(iter.Key().mElement,
iter.Key().mPseudoType,
cascadeLevel);
postedRestyle = true;
}
}
}
template<typename StyleType>
void
EffectCompositor::UpdateEffectProperties(StyleType&& aStyleType,
Element* aElement,
CSSPseudoElementType aPseudoType)
{
EffectSet* effectSet = EffectSet::GetEffectSet(aElement, aPseudoType);
if (!effectSet) {
return;
}
// Style context (Gecko) or computed values (Stylo) change might cause CSS
// cascade level, e.g removing !important, so we should update the cascading
// result.
effectSet->MarkCascadeNeedsUpdate();
for (KeyframeEffectReadOnly* effect : *effectSet) {
effect->UpdateProperties(Forward<StyleType>(aStyleType));
}
}
void
EffectCompositor::MaybeUpdateAnimationRule(dom::Element* aElement,
CSSPseudoElementType aPseudoType,
CascadeLevel aCascadeLevel,
nsStyleContext* aStyleContext)
{
// First update cascade results since that may cause some elements to
// be marked as needing a restyle.
MaybeUpdateCascadeResults(aElement, aPseudoType, aStyleContext);
auto& elementsToRestyle = mElementsToRestyle[aCascadeLevel];
PseudoElementHashEntry::KeyType key = { aElement, aPseudoType };
if (!elementsToRestyle.Contains(key)) {
return;
}
ComposeAnimationRule(aElement, aPseudoType, aCascadeLevel);
elementsToRestyle.Remove(key);
}
nsIStyleRule*
EffectCompositor::GetAnimationRule(dom::Element* aElement,
CSSPseudoElementType aPseudoType,
CascadeLevel aCascadeLevel,
nsStyleContext* aStyleContext)
{
// NOTE: We need to be careful about early returns in this method where
// we *don't* update mElementsToRestyle. When we get a call to
// RequestRestyle that results in a call to PostRestyleForAnimation, we
// will set a bool flag in mElementsToRestyle indicating that we've
// called PostRestyleForAnimation so we don't need to call it again
// until that restyle happens. During that restyle, if we arrive here
// and *don't* update mElementsToRestyle we'll continue to skip calling
// PostRestyleForAnimation from RequestRestyle.
if (!mPresContext || !mPresContext->IsDynamic()) {
// For print or print preview, ignore animations.
return nullptr;
}
MOZ_ASSERT(mPresContext->RestyleManager()->IsGecko(),
"stylo: Servo-backed style system should not be using "
"EffectCompositor");
if (mPresContext->RestyleManager()->AsGecko()->SkipAnimationRules()) {
// We don't need to worry about updating mElementsToRestyle in this case
// since this is not the animation restyle we requested when we called
// PostRestyleForAnimation (see comment at start of this method).
return nullptr;
}
MaybeUpdateAnimationRule(aElement, aPseudoType, aCascadeLevel, aStyleContext);
#ifdef DEBUG
{
auto& elementsToRestyle = mElementsToRestyle[aCascadeLevel];
PseudoElementHashEntry::KeyType key = { aElement, aPseudoType };
MOZ_ASSERT(!elementsToRestyle.Contains(key),
"Element should no longer require a restyle after its "
"animation rule has been updated");
}
#endif
EffectSet* effectSet = EffectSet::GetEffectSet(aElement, aPseudoType);
if (!effectSet) {
return nullptr;
}
return effectSet->AnimationRule(aCascadeLevel);
}
namespace {
class EffectCompositeOrderComparator {
public:
bool Equals(const KeyframeEffectReadOnly* a,
const KeyframeEffectReadOnly* b) const
{
return a == b;
}
bool LessThan(const KeyframeEffectReadOnly* a,
const KeyframeEffectReadOnly* b) const
{
MOZ_ASSERT(a->GetAnimation() && b->GetAnimation());
MOZ_ASSERT(
Equals(a, b) ||
a->GetAnimation()->HasLowerCompositeOrderThan(*b->GetAnimation()) !=
b->GetAnimation()->HasLowerCompositeOrderThan(*a->GetAnimation()));
return a->GetAnimation()->HasLowerCompositeOrderThan(*b->GetAnimation());
}
};
}
bool
EffectCompositor::GetServoAnimationRule(
const dom::Element* aElement,
CSSPseudoElementType aPseudoType,
CascadeLevel aCascadeLevel,
RawServoAnimationValueMapBorrowed aAnimationValues)
{
MOZ_ASSERT(aAnimationValues);
MOZ_ASSERT(mPresContext && mPresContext->IsDynamic(),
"Should not be in print preview");
EffectSet* effectSet = EffectSet::GetEffectSet(aElement, aPseudoType);
if (!effectSet) {
return false;
}
// Get a list of effects sorted by composite order.
nsTArray<KeyframeEffectReadOnly*> sortedEffectList(effectSet->Count());
for (KeyframeEffectReadOnly* effect : *effectSet) {
sortedEffectList.AppendElement(effect);
}
sortedEffectList.Sort(EffectCompositeOrderComparator());
// If multiple animations affect the same property, animations with higher
// composite order (priority) override or add or animations with lower
// priority.
const nsCSSPropertyIDSet propertiesToSkip =
aCascadeLevel == CascadeLevel::Animations
? effectSet->PropertiesForAnimationsLevel().Inverse()
: effectSet->PropertiesForAnimationsLevel();
for (KeyframeEffectReadOnly* effect : sortedEffectList) {
effect->GetAnimation()->ComposeStyle(*aAnimationValues, propertiesToSkip);
}
MOZ_ASSERT(effectSet == EffectSet::GetEffectSet(aElement, aPseudoType),
"EffectSet should not change while composing style");
return true;
}
/* static */ dom::Element*
EffectCompositor::GetElementToRestyle(dom::Element* aElement,
CSSPseudoElementType aPseudoType)
{
if (aPseudoType == CSSPseudoElementType::NotPseudo) {
return aElement;
}
if (aPseudoType == CSSPseudoElementType::before) {
return nsLayoutUtils::GetBeforePseudo(aElement);
}
if (aPseudoType == CSSPseudoElementType::after) {
return nsLayoutUtils::GetAfterPseudo(aElement);
}
NS_NOTREACHED("Should not try to get the element to restyle for a pseudo "
"other that :before or :after");
return nullptr;
}
2016-01-13 01:54:55 +03:00
bool
EffectCompositor::HasPendingStyleUpdates() const
{
for (auto& elementSet : mElementsToRestyle) {
if (elementSet.Count()) {
return true;
}
}
return false;
}
bool
EffectCompositor::HasThrottledStyleUpdates() const
{
for (auto& elementSet : mElementsToRestyle) {
for (auto iter = elementSet.ConstIter(); !iter.Done(); iter.Next()) {
if (!iter.Data()) {
return true;
}
}
}
return false;
}
void
EffectCompositor::AddStyleUpdatesTo(RestyleTracker& aTracker)
{
if (!mPresContext) {
return;
}
for (size_t i = 0; i < kCascadeLevelCount; i++) {
CascadeLevel cascadeLevel = CascadeLevel(i);
auto& elementSet = mElementsToRestyle[cascadeLevel];
// Copy the list of elements to restyle to a separate array that we can
// iterate over. This is because we need to call MaybeUpdateCascadeResults
// on each element, but doing that can mutate elementSet. In this case
// it will only mutate the bool value associated with each element in the
// set but even doing that will cause assertions in PLDHashTable to fail
// if we are iterating over the hashtable at the same time.
nsTArray<PseudoElementHashEntry::KeyType> elementsToRestyle(
elementSet.Count());
for (auto iter = elementSet.Iter(); !iter.Done(); iter.Next()) {
// Skip animations on elements that have been orphaned since they
// requested a restyle.
if (iter.Key().mElement->IsInComposedDoc()) {
elementsToRestyle.AppendElement(iter.Key());
}
}
for (auto& pseudoElem : elementsToRestyle) {
MaybeUpdateCascadeResults(pseudoElem.mElement,
pseudoElem.mPseudoType,
nullptr);
ComposeAnimationRule(pseudoElem.mElement,
pseudoElem.mPseudoType,
cascadeLevel);
dom::Element* elementToRestyle =
GetElementToRestyle(pseudoElem.mElement, pseudoElem.mPseudoType);
if (elementToRestyle) {
nsRestyleHint rshint = cascadeLevel == CascadeLevel::Transitions ?
eRestyle_CSSTransitions :
eRestyle_CSSAnimations;
aTracker.AddPendingRestyle(elementToRestyle, rshint, nsChangeHint(0));
}
}
elementSet.Clear();
// Note: mElement pointers in elementsToRestyle might now dangle
}
}
/* static */ bool
EffectCompositor::HasAnimationsForCompositor(const nsIFrame* aFrame,
nsCSSPropertyID aProperty)
{
return FindAnimationsForCompositor(aFrame, aProperty, nullptr);
}
/* static */ nsTArray<RefPtr<dom::Animation>>
EffectCompositor::GetAnimationsForCompositor(const nsIFrame* aFrame,
nsCSSPropertyID aProperty)
{
nsTArray<RefPtr<dom::Animation>> result;
#ifdef DEBUG
bool foundSome =
#endif
FindAnimationsForCompositor(aFrame, aProperty, &result);
MOZ_ASSERT(!foundSome || !result.IsEmpty(),
"If return value is true, matches array should be non-empty");
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
return result;
}
/* static */ void
EffectCompositor::ClearIsRunningOnCompositor(const nsIFrame *aFrame,
nsCSSPropertyID aProperty)
{
EffectSet* effects = EffectSet::GetEffectSet(aFrame);
if (!effects) {
return;
}
for (KeyframeEffectReadOnly* effect : *effects) {
effect->SetIsRunningOnCompositor(aProperty, false);
}
}
/* static */ void
EffectCompositor::MaybeUpdateCascadeResults(Element* aElement,
CSSPseudoElementType aPseudoType,
nsStyleContext* aStyleContext)
{
EffectSet* effects = EffectSet::GetEffectSet(aElement, aPseudoType);
if (!effects || !effects->CascadeNeedsUpdate()) {
return;
}
nsStyleContext* styleContext = aStyleContext;
if (!styleContext) {
dom::Element* elementToRestyle = GetElementToRestyle(aElement, aPseudoType);
if (elementToRestyle) {
nsIFrame* frame = elementToRestyle->GetPrimaryFrame();
if (frame) {
styleContext = frame->StyleContext();
}
}
}
UpdateCascadeResults(*effects, aElement, aPseudoType, styleContext);
MOZ_ASSERT(!effects->CascadeNeedsUpdate(), "Failed to update cascade state");
}
/* static */ void
EffectCompositor::MaybeUpdateCascadeResults(dom::Element* aElement,
CSSPseudoElementType aPseudoType)
{
EffectSet* effects = EffectSet::GetEffectSet(aElement, aPseudoType);
MOZ_ASSERT(effects);
if (!effects->CascadeNeedsUpdate()) {
return;
}
// FIXME: Implement the rule node traversal for stylo in Bug 1334036.
UpdateCascadeResults(*effects, aElement, aPseudoType, nullptr);
MOZ_ASSERT(!effects->CascadeNeedsUpdate(), "Failed to update cascade state");
}
/* static */ void
EffectCompositor::UpdateCascadeResults(Element* aElement,
CSSPseudoElementType aPseudoType,
nsStyleContext* aStyleContext)
{
EffectSet* effects = EffectSet::GetEffectSet(aElement, aPseudoType);
if (!effects) {
return;
}
UpdateCascadeResults(*effects, aElement, aPseudoType, aStyleContext);
}
/* static */ Maybe<NonOwningAnimationTarget>
EffectCompositor::GetAnimationElementAndPseudoForFrame(const nsIFrame* aFrame)
{
// Always return the same object to benefit from return-value optimization.
Maybe<NonOwningAnimationTarget> result;
CSSPseudoElementType pseudoType =
aFrame->StyleContext()->GetPseudoType();
if (pseudoType != CSSPseudoElementType::NotPseudo &&
pseudoType != CSSPseudoElementType::before &&
pseudoType != CSSPseudoElementType::after) {
return result;
}
nsIContent* content = aFrame->GetContent();
if (!content) {
return result;
}
if (pseudoType == CSSPseudoElementType::before ||
pseudoType == CSSPseudoElementType::after) {
content = content->GetParent();
if (!content) {
return result;
}
}
if (!content->IsElement()) {
return result;
}
result.emplace(content->AsElement(), pseudoType);
return result;
}
/* static */ void
EffectCompositor::ComposeAnimationRule(dom::Element* aElement,
CSSPseudoElementType aPseudoType,
CascadeLevel aCascadeLevel)
{
EffectSet* effects = EffectSet::GetEffectSet(aElement, aPseudoType);
if (!effects) {
return;
}
// The caller is responsible for calling MaybeUpdateCascadeResults first.
MOZ_ASSERT(!effects->CascadeNeedsUpdate(),
"Animation cascade out of date when composing animation rule");
// Get a list of effects sorted by composite order.
nsTArray<KeyframeEffectReadOnly*> sortedEffectList(effects->Count());
for (KeyframeEffectReadOnly* effect : *effects) {
sortedEffectList.AppendElement(effect);
}
sortedEffectList.Sort(EffectCompositeOrderComparator());
RefPtr<AnimValuesStyleRule>& animRule = effects->AnimationRule(aCascadeLevel);
animRule = nullptr;
// If multiple animations affect the same property, animations with higher
// composite order (priority) override or add or animations with lower
// priority except properties in propertiesToSkip.
const nsCSSPropertyIDSet& propertiesToSkip =
aCascadeLevel == CascadeLevel::Animations
? effects->PropertiesForAnimationsLevel().Inverse()
: effects->PropertiesForAnimationsLevel();
for (KeyframeEffectReadOnly* effect : sortedEffectList) {
effect->GetAnimation()->WillComposeStyle();
effect->GetAnimation()->ComposeStyle(animRule, propertiesToSkip);
}
Bug 1240228 - Don't update an effect's timing when tweaking its animation's hold time; r=heycam In some circumstances when composing style, we tweak the time of the animation before telling the effect to compose style. This is to avoid visual flicker in certain situations where the main thread progress is being synchronized with an animation running on the compositor. In the past, effects would store their latest sample time locally so when tweaking the animation time, we would need to call UpdateEffect() after tweaking the time, and then again after restoring it as otherwise the style composed by the effect would not reflect the adjusted time. Now, however, effect's always query their animation for the time so this is no longer necessary. Furthermore, the actions triggered by UpdateEffect are not desirable in this case because they can, amongst other things, cause the associated EffectSet to be destroyed and recreated. Specifically, Animation::UpdateEffect() calls KeyframeEffectReadOnly::NotifyAnimationTimingUpdated() which: * Calls UpdateTargetRegistration which can trigger EffectSet destruction/creation which is undesirable in this case because we intend to restore whatever changes we make to the Animation's state and deleting and recreating the EffectSet will cause any pointers to it to dangle. * Cause us to possibly reset the "is running on compositor" status. This too is undesirable since we intend to restore the state of the Animation immediately after tweaking the hold time so we don't want to act as if any state has changed. * Similarly for marking the cascade as possibly needing an update or requesting a restyle. In summary, all the actions performed by NotifyAnimationTimingUpdated are unnecessary and undesirable in this situation where we are temporarily tweaking an Animation's current time only to restore it immediately afterwards since the actions are all involved with recognizing actual changes in state.
2016-01-19 02:05:08 +03:00
MOZ_ASSERT(effects == EffectSet::GetEffectSet(aElement, aPseudoType),
"EffectSet should not change while composing style");
}
/* static */ void
EffectCompositor::GetOverriddenProperties(nsStyleContext* aStyleContext,
EffectSet& aEffectSet,
nsCSSPropertyIDSet&
aPropertiesOverridden)
{
AutoTArray<nsCSSPropertyID, LayerAnimationInfo::kRecords> propertiesToTrack;
{
nsCSSPropertyIDSet propertiesToTrackAsSet;
for (KeyframeEffectReadOnly* effect : aEffectSet) {
for (const AnimationProperty& property : effect->Properties()) {
if (nsCSSProps::PropHasFlags(property.mProperty,
CSS_PROPERTY_CAN_ANIMATE_ON_COMPOSITOR) &&
!propertiesToTrackAsSet.HasProperty(property.mProperty)) {
propertiesToTrackAsSet.AddProperty(property.mProperty);
propertiesToTrack.AppendElement(property.mProperty);
}
}
// Skip iterating over the rest of the effects if we've already
// found all the compositor-animatable properties.
if (propertiesToTrack.Length() == LayerAnimationInfo::kRecords) {
break;
}
}
}
if (propertiesToTrack.IsEmpty()) {
return;
}
nsRuleNode::ComputePropertiesOverridingAnimation(propertiesToTrack,
aStyleContext,
aPropertiesOverridden);
}
/* static */ void
EffectCompositor::UpdateCascadeResults(EffectSet& aEffectSet,
Element* aElement,
CSSPseudoElementType aPseudoType,
nsStyleContext* aStyleContext)
{
MOZ_ASSERT(EffectSet::GetEffectSet(aElement, aPseudoType) == &aEffectSet,
"Effect set should correspond to the specified (pseudo-)element");
if (aEffectSet.IsEmpty()) {
aEffectSet.MarkCascadeUpdated();
return;
}
// Get a list of effects sorted by composite order.
nsTArray<KeyframeEffectReadOnly*> sortedEffectList(aEffectSet.Count());
for (KeyframeEffectReadOnly* effect : aEffectSet) {
sortedEffectList.AppendElement(effect);
}
sortedEffectList.Sort(EffectCompositeOrderComparator());
// Get properties that override the *animations* level of the cascade.
//
// We only do this for properties that we can animate on the compositor
// since we will apply other properties on the main thread where the usual
// cascade applies.
nsCSSPropertyIDSet overriddenProperties;
if (aStyleContext) {
// FIXME: Bug 1334036 (OMTA) will implement a FFI to get the properties
// overriding animation.
MOZ_ASSERT(!aStyleContext->StyleSource().IsServoComputedValues(),
"stylo: Not support get properties overriding animation yet.");
GetOverriddenProperties(aStyleContext, aEffectSet, overriddenProperties);
}
// Returns a bitset the represents which properties from
// LayerAnimationInfo::sRecords are present in |aPropertySet|.
auto compositorPropertiesInSet =
[](nsCSSPropertyIDSet& aPropertySet) ->
std::bitset<LayerAnimationInfo::kRecords> {
std::bitset<LayerAnimationInfo::kRecords> result;
for (size_t i = 0; i < LayerAnimationInfo::kRecords; i++) {
if (aPropertySet.HasProperty(
LayerAnimationInfo::sRecords[i].mProperty)) {
result.set(i);
}
}
return result;
};
nsCSSPropertyIDSet& propertiesWithImportantRules =
aEffectSet.PropertiesWithImportantRules();
nsCSSPropertyIDSet& propertiesForAnimationsLevel =
aEffectSet.PropertiesForAnimationsLevel();
// Record which compositor-animatable properties were originally set so we can
// compare for changes later.
std::bitset<LayerAnimationInfo::kRecords>
prevCompositorPropertiesWithImportantRules =
compositorPropertiesInSet(propertiesWithImportantRules);
std::bitset<LayerAnimationInfo::kRecords>
prevCompositorPropertiesForAnimationsLevel =
compositorPropertiesInSet(propertiesForAnimationsLevel);
propertiesWithImportantRules.Empty();
propertiesForAnimationsLevel.Empty();
bool hasCompositorPropertiesForTransition = false;
for (const KeyframeEffectReadOnly* effect : sortedEffectList) {
MOZ_ASSERT(effect->GetAnimation(),
"Effects on a target element should have an Animation");
CascadeLevel cascadeLevel = effect->GetAnimation()->CascadeLevel();
for (const AnimationProperty& prop : effect->Properties()) {
if (overriddenProperties.HasProperty(prop.mProperty)) {
propertiesWithImportantRules.AddProperty(prop.mProperty);
}
if (cascadeLevel == EffectCompositor::CascadeLevel::Animations) {
propertiesForAnimationsLevel.AddProperty(prop.mProperty);
}
if (nsCSSProps::PropHasFlags(prop.mProperty,
CSS_PROPERTY_CAN_ANIMATE_ON_COMPOSITOR) &&
cascadeLevel == EffectCompositor::CascadeLevel::Transitions) {
hasCompositorPropertiesForTransition = true;
}
}
}
aEffectSet.MarkCascadeUpdated();
nsPresContext* presContext = nsContentUtils::GetContextForContent(aElement);
if (!presContext) {
return;
}
// If properties for compositor are newly overridden by !important rules, or
// released from being overridden by !important rules, we need to update
// layers for animations level because it's a trigger to send animations to
// the compositor or pull animations back from the compositor.
if (prevCompositorPropertiesWithImportantRules !=
compositorPropertiesInSet(propertiesWithImportantRules)) {
presContext->EffectCompositor()->
RequestRestyle(aElement, aPseudoType,
EffectCompositor::RestyleType::Layer,
EffectCompositor::CascadeLevel::Animations);
}
// If we have transition properties for compositor and if the same propery
// for animations level is newly added or removed, we need to update layers
// for transitions level because composite order has been changed now.
if (hasCompositorPropertiesForTransition &&
prevCompositorPropertiesForAnimationsLevel !=
compositorPropertiesInSet(propertiesForAnimationsLevel)) {
presContext->EffectCompositor()->
RequestRestyle(aElement, aPseudoType,
EffectCompositor::RestyleType::Layer,
EffectCompositor::CascadeLevel::Transitions);
}
}
/* static */ void
EffectCompositor::SetPerformanceWarning(
const nsIFrame *aFrame,
nsCSSPropertyID aProperty,
const AnimationPerformanceWarning& aWarning)
{
EffectSet* effects = EffectSet::GetEffectSet(aFrame);
if (!effects) {
return;
}
for (KeyframeEffectReadOnly* effect : *effects) {
effect->SetPerformanceWarning(aProperty, aWarning);
}
}
bool
EffectCompositor::PreTraverse()
{
return PreTraverseInSubtree(nullptr);
}
bool
EffectCompositor::PreTraverseInSubtree(Element* aRoot)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mPresContext->RestyleManager()->IsServo());
bool foundElementsNeedingRestyle = false;
for (size_t i = 0; i < kCascadeLevelCount; ++i) {
CascadeLevel cascadeLevel = CascadeLevel(i);
for (auto iter = mElementsToRestyle[cascadeLevel].Iter();
!iter.Done(); iter.Next()) {
bool postedRestyle = iter.Data();
// Ignore throttled restyle.
if (!postedRestyle) {
continue;
}
NonOwningAnimationTarget target = iter.Key();
// Ignore restyles that aren't in the flattened tree subtree rooted at
// aRoot.
if (aRoot &&
!nsContentUtils::ContentIsFlattenedTreeDescendantOf(target.mElement,
aRoot)) {
continue;
}
// We need to post restyle hints even if the target is not in EffectSet to
// ensure the final restyling for removed animations.
// We can't call PostRestyleEvent directly here since we are still in the
// middle of the servo traversal.
mPresContext->RestyleManager()->AsServo()->
PostRestyleEventForAnimations(target.mElement,
cascadeLevel == CascadeLevel::Transitions
? eRestyle_CSSTransitions
: eRestyle_CSSAnimations);
foundElementsNeedingRestyle = true;
EffectSet* effects =
EffectSet::GetEffectSet(target.mElement, target.mPseudoType);
if (!effects) {
// Drop EffectSets that have been destroyed.
iter.Remove();
continue;
}
MaybeUpdateCascadeResults(target.mElement, target.mPseudoType);
for (KeyframeEffectReadOnly* effect : *effects) {
effect->GetAnimation()->WillComposeStyle();
}
// Remove the element from the list of elements to restyle since we are
// about to restyle it.
iter.Remove();
}
}
return foundElementsNeedingRestyle;
}
bool
EffectCompositor::PreTraverse(dom::Element* aElement, nsIAtom* aPseudoTagOrNull)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mPresContext->RestyleManager()->IsServo());
bool found = false;
if (aPseudoTagOrNull &&
aPseudoTagOrNull != nsCSSPseudoElements::before &&
aPseudoTagOrNull != nsCSSPseudoElements::after) {
return found;
}
CSSPseudoElementType pseudoType =
nsCSSPseudoElements::GetPseudoType(aPseudoTagOrNull,
CSSEnabledState::eForAllContent);
PseudoElementHashEntry::KeyType key = { aElement, pseudoType };
for (size_t i = 0; i < kCascadeLevelCount; ++i) {
CascadeLevel cascadeLevel = CascadeLevel(i);
auto& elementSet = mElementsToRestyle[cascadeLevel];
if (!elementSet.Get(key)) {
// Ignore throttled restyle and no restyle request.
continue;
}
mPresContext->RestyleManager()->AsServo()->
PostRestyleEventForAnimations(aElement,
cascadeLevel == CascadeLevel::Transitions
? eRestyle_CSSTransitions
: eRestyle_CSSAnimations);
EffectSet* effects = EffectSet::GetEffectSet(aElement, pseudoType);
if (effects) {
MaybeUpdateCascadeResults(aElement, pseudoType);
for (KeyframeEffectReadOnly* effect : *effects) {
effect->GetAnimation()->WillComposeStyle();
}
}
elementSet.Remove(key);
found = true;
}
return found;
}
// ---------------------------------------------------------
//
// Nested class: AnimationStyleRuleProcessor
//
// ---------------------------------------------------------
NS_IMPL_ISUPPORTS(EffectCompositor::AnimationStyleRuleProcessor,
nsIStyleRuleProcessor)
nsRestyleHint
EffectCompositor::AnimationStyleRuleProcessor::HasStateDependentStyle(
StateRuleProcessorData* aData)
{
return nsRestyleHint(0);
}
nsRestyleHint
EffectCompositor::AnimationStyleRuleProcessor::HasStateDependentStyle(
PseudoElementStateRuleProcessorData* aData)
{
return nsRestyleHint(0);
}
bool
EffectCompositor::AnimationStyleRuleProcessor::HasDocumentStateDependentStyle(
StateRuleProcessorData* aData)
{
return false;
}
nsRestyleHint
EffectCompositor::AnimationStyleRuleProcessor::HasAttributeDependentStyle(
AttributeRuleProcessorData* aData,
RestyleHintData& aRestyleHintDataResult)
{
return nsRestyleHint(0);
}
bool
EffectCompositor::AnimationStyleRuleProcessor::MediumFeaturesChanged(
nsPresContext* aPresContext)
{
return false;
}
void
EffectCompositor::AnimationStyleRuleProcessor::RulesMatching(
ElementRuleProcessorData* aData)
{
nsIStyleRule *rule =
mCompositor->GetAnimationRule(aData->mElement,
CSSPseudoElementType::NotPseudo,
mCascadeLevel,
nullptr);
if (rule) {
aData->mRuleWalker->Forward(rule);
aData->mRuleWalker->CurrentNode()->SetIsAnimationRule();
}
}
void
EffectCompositor::AnimationStyleRuleProcessor::RulesMatching(
PseudoElementRuleProcessorData* aData)
{
if (aData->mPseudoType != CSSPseudoElementType::before &&
aData->mPseudoType != CSSPseudoElementType::after) {
return;
}
nsIStyleRule *rule =
mCompositor->GetAnimationRule(aData->mElement,
aData->mPseudoType,
mCascadeLevel,
nullptr);
if (rule) {
aData->mRuleWalker->Forward(rule);
aData->mRuleWalker->CurrentNode()->SetIsAnimationRule();
}
}
void
EffectCompositor::AnimationStyleRuleProcessor::RulesMatching(
AnonBoxRuleProcessorData* aData)
{
}
#ifdef MOZ_XUL
void
EffectCompositor::AnimationStyleRuleProcessor::RulesMatching(
XULTreeRuleProcessorData* aData)
{
}
#endif
size_t
EffectCompositor::AnimationStyleRuleProcessor::SizeOfExcludingThis(
MallocSizeOf aMallocSizeOf) const
{
return 0;
}
size_t
EffectCompositor::AnimationStyleRuleProcessor::SizeOfIncludingThis(
MallocSizeOf aMallocSizeOf) const
{
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
}
template
void
EffectCompositor::UpdateEffectProperties<RefPtr<nsStyleContext>&>(
RefPtr<nsStyleContext>& aStyleContext,
Element* aElement,
CSSPseudoElementType aPseudoType);
template
void
EffectCompositor::UpdateEffectProperties<const ServoComputedValuesWithParent&>(
const ServoComputedValuesWithParent& aServoValues,
Element* aElement,
CSSPseudoElementType aPseudoType);
Bug 1226118 part 8 - Add EffectCompositor::GetAnimationsForCompositor that uses the EffectSet rather than AnimationCollection; r=dholbert This added method should behave in an equivalent manner to the existing CommonAnimationManager::GetAnimationsForCompositor except for the following differences: * It uses the EffectSet attached to a target element rather than one of the AnimationCollection object on the owning element. * It returns an array of Animation objects consisting of only those Animations that actually have the specified property as opposed to the AnimationCollection consisting of *all* CSS animations or *all* CSS transitions for the element regardless of whether they run on the compositor or not. It may not be obvious why these two methods otherwise behave in an equivalent fashion so the following explains how the existing code is mirrored in the new method. The existing code is as follows: > AnimationCollection* > CommonAnimationManager::GetAnimationsForCompositor(const nsIFrame* aFrame, > nsCSSProperty aProperty) > { > AnimationCollection* collection = GetAnimationCollection(aFrame); > if (!collection || > !collection->HasCurrentAnimationOfProperty(aProperty) || > !collection->CanPerformOnCompositorThread(aFrame)) { > return nullptr; > } > > // This animation can be done on the compositor. > return collection; > } The new EffectCompositor::GetAnimationsForCompositor begins with two checks performed at the beginning of CanPerformOnCompositorThread: the checks for whether async animations are enabled or not and whether the frame has refused async animations since these are cheap and it makes sense to check them first. The next part of EffectCompositor::GetAnimationsForCompositor checks if there is an EffectSet associated with the frame. This is equivalent to the check whether |collection| is null or not above. Following, we iterate through the effects in the EffectSet. We first check if each effect is playing or not. In the above code, HasCurrentAnimationOfProperty only checks if the effect is *current* or not. However, CanPerformOnCompositorThread will only return true if it finds an animation that can run on the compositor that is *playing*. Since playing is a strict subset of current we only need to perform the more restrictive test. Next we check if the effect should block running other animations on the compositor. This is equivalent to the remainder of CanPerformOnCompositorThread. Note that the order is important here. Only playing animations should block other animations from running on the compositor. Furthermore, this needs to happen before the following step since animations of property other than |aProperty| can still block animations from running on the compositor. Finally, we check if the effect has an animation of |aProperty|. This is equivalent to the remainder of HasCurrentAnimationOfProperty. If all these checks succeed, we add the effect's animation to the result to return.
2015-12-04 02:34:12 +03:00
} // namespace mozilla