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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 "EffectSet.h"
#include "mozilla/dom/Element.h" // For Element
#include "mozilla/RestyleManagerHandle.h"
#include "mozilla/RestyleManagerHandleInlines.h"
#include "nsCSSPseudoElements.h" // For CSSPseudoElementType
#include "nsCycleCollectionNoteChild.h" // For CycleCollectionNoteChild
#include "nsPresContext.h"
#include "nsLayoutUtils.h"
namespace mozilla {
/* static */ void
EffectSet::PropertyDtor(void* aObject, nsIAtom* aPropertyName,
void* aPropertyValue, void* aData)
{
EffectSet* effectSet = static_cast<EffectSet*>(aPropertyValue);
#ifdef DEBUG
MOZ_ASSERT(!effectSet->mCalledPropertyDtor, "Should not call dtor twice");
effectSet->mCalledPropertyDtor = true;
#endif
delete effectSet;
}
void
EffectSet::Traverse(nsCycleCollectionTraversalCallback& aCallback)
{
for (auto iter = mEffects.Iter(); !iter.Done(); iter.Next()) {
CycleCollectionNoteChild(aCallback, iter.Get()->GetKey(),
"EffectSet::mEffects[]", aCallback.Flags());
}
}
/* static */ EffectSet*
EffectSet::GetEffectSet(dom::Element* aElement,
CSSPseudoElementType aPseudoType)
{
nsIAtom* propName = GetEffectSetPropertyAtom(aPseudoType);
return static_cast<EffectSet*>(aElement->GetProperty(propName));
}
/* static */ EffectSet*
EffectSet::GetEffectSet(const nsIFrame* aFrame)
{
Maybe<NonOwningAnimationTarget> target =
EffectCompositor::GetAnimationElementAndPseudoForFrame(aFrame);
if (!target) {
return nullptr;
}
if (!target->mElement->MayHaveAnimations()) {
return nullptr;
}
return GetEffectSet(target->mElement, target->mPseudoType);
}
/* static */ EffectSet*
EffectSet::GetOrCreateEffectSet(dom::Element* aElement,
CSSPseudoElementType aPseudoType)
{
EffectSet* effectSet = GetEffectSet(aElement, aPseudoType);
if (effectSet) {
return effectSet;
}
nsIAtom* propName = GetEffectSetPropertyAtom(aPseudoType);
effectSet = new EffectSet();
nsresult rv = aElement->SetProperty(propName, effectSet,
&EffectSet::PropertyDtor, true);
if (NS_FAILED(rv)) {
NS_WARNING("SetProperty failed");
// The set must be destroyed via PropertyDtor, otherwise
// mCalledPropertyDtor assertion is triggered in destructor.
EffectSet::PropertyDtor(aElement, propName, effectSet, nullptr);
return nullptr;
}
aElement->SetMayHaveAnimations();
return effectSet;
}
/* static */ void
EffectSet::DestroyEffectSet(dom::Element* aElement,
CSSPseudoElementType aPseudoType)
{
nsIAtom* propName = GetEffectSetPropertyAtom(aPseudoType);
EffectSet* effectSet =
static_cast<EffectSet*>(aElement->GetProperty(propName));
if (!effectSet) {
return;
}
MOZ_ASSERT(!effectSet->IsBeingEnumerated(),
"Should not destroy an effect set while it is being enumerated");
effectSet = nullptr;
aElement->DeleteProperty(propName);
}
void
EffectSet::UpdateAnimationGeneration(nsPresContext* aPresContext)
{
MOZ_ASSERT(aPresContext->RestyleManager()->IsGecko(),
"stylo: Servo-backed style system should not be using "
"EffectSet");
mAnimationGeneration =
aPresContext->RestyleManager()->AsGecko()->GetAnimationGeneration();
}
/* static */ nsIAtom**
EffectSet::GetEffectSetPropertyAtoms()
{
static nsIAtom* effectSetPropertyAtoms[] =
{
nsGkAtoms::animationEffectsProperty,
nsGkAtoms::animationEffectsForBeforeProperty,
nsGkAtoms::animationEffectsForAfterProperty,
nullptr
};
return effectSetPropertyAtoms;
}
/* static */ nsIAtom*
EffectSet::GetEffectSetPropertyAtom(CSSPseudoElementType aPseudoType)
{
switch (aPseudoType) {
case CSSPseudoElementType::NotPseudo:
return nsGkAtoms::animationEffectsProperty;
case CSSPseudoElementType::before:
return nsGkAtoms::animationEffectsForBeforeProperty;
case CSSPseudoElementType::after:
return nsGkAtoms::animationEffectsForAfterProperty;
default:
NS_NOTREACHED("Should not try to get animation effects for a pseudo "
"other that :before or :after");
return nullptr;
}
}
void
EffectSet::AddEffect(dom::KeyframeEffectReadOnly& aEffect)
{
if (mEffects.Contains(&aEffect)) {
return;
}
mEffects.PutEntry(&aEffect);
MarkCascadeNeedsUpdate();
}
void
EffectSet::RemoveEffect(dom::KeyframeEffectReadOnly& aEffect)
{
if (!mEffects.Contains(&aEffect)) {
return;
}
mEffects.RemoveEntry(&aEffect);
MarkCascadeNeedsUpdate();
}
} // namespace mozilla
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