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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 "mozilla/AnimationCollection.h"
#include "mozilla/RestyleManagerHandle.h"
#include "mozilla/RestyleManagerHandleInlines.h"
#include "nsAnimationManager.h" // For dom::CSSAnimation
#include "nsPresContext.h"
#include "nsTransitionManager.h" // For dom::CSSTransition
namespace mozilla {
template <class AnimationType>
/* static */ void
AnimationCollection<AnimationType>::PropertyDtor(void* aObject,
nsIAtom* aPropertyName,
void* aPropertyValue,
void* aData)
{
AnimationCollection* collection =
static_cast<AnimationCollection*>(aPropertyValue);
#ifdef DEBUG
MOZ_ASSERT(!collection->mCalledPropertyDtor, "can't call dtor twice");
collection->mCalledPropertyDtor = true;
#endif
{
nsAutoAnimationMutationBatch mb(collection->mElement->OwnerDoc());
for (size_t animIdx = collection->mAnimations.Length(); animIdx-- != 0; ) {
collection->mAnimations[animIdx]->CancelFromStyle();
}
}
delete collection;
}
template <class AnimationType>
/* static */ AnimationCollection<AnimationType>*
AnimationCollection<AnimationType>::GetAnimationCollection(
dom::Element *aElement,
CSSPseudoElementType aPseudoType)
{
if (!aElement->MayHaveAnimations()) {
// Early return for the most common case.
return nullptr;
}
nsIAtom* propName = GetPropertyAtomForPseudoType(aPseudoType);
if (!propName) {
return nullptr;
}
return
static_cast<AnimationCollection<AnimationType>*>(aElement->
GetProperty(propName));
}
template <class AnimationType>
/* static */ AnimationCollection<AnimationType>*
AnimationCollection<AnimationType>::GetAnimationCollection(
const nsIFrame* aFrame)
{
Maybe<NonOwningAnimationTarget> pseudoElement =
EffectCompositor::GetAnimationElementAndPseudoForFrame(aFrame);
if (!pseudoElement) {
return nullptr;
}
if (!pseudoElement->mElement->MayHaveAnimations()) {
return nullptr;
}
return GetAnimationCollection(pseudoElement->mElement,
pseudoElement->mPseudoType);
}
template <class AnimationType>
/* static */ AnimationCollection<AnimationType>*
AnimationCollection<AnimationType>::GetOrCreateAnimationCollection(
dom::Element* aElement,
CSSPseudoElementType aPseudoType,
bool* aCreatedCollection)
{
MOZ_ASSERT(aCreatedCollection);
*aCreatedCollection = false;
nsIAtom* propName = GetPropertyAtomForPseudoType(aPseudoType);
MOZ_ASSERT(propName, "Should only try to create animations for one of the"
" recognized pseudo types");
auto collection = static_cast<AnimationCollection<AnimationType>*>(
aElement->GetProperty(propName));
if (!collection) {
// FIXME: Consider arena-allocating?
collection = new AnimationCollection<AnimationType>(aElement, propName);
nsresult rv =
aElement->SetProperty(propName, collection,
&AnimationCollection<AnimationType>::PropertyDtor,
false);
if (NS_FAILED(rv)) {
NS_WARNING("SetProperty failed");
// The collection must be destroyed via PropertyDtor, otherwise
// mCalledPropertyDtor assertion is triggered in destructor.
AnimationCollection<AnimationType>::PropertyDtor(aElement, propName,
collection, nullptr);
return nullptr;
}
*aCreatedCollection = true;
aElement->SetMayHaveAnimations();
}
return collection;
}
template <class AnimationType>
/* static */ nsString
AnimationCollection<AnimationType>::PseudoTypeAsString(
CSSPseudoElementType aPseudoType)
{
switch (aPseudoType) {
case CSSPseudoElementType::before:
return NS_LITERAL_STRING("::before");
case CSSPseudoElementType::after:
return NS_LITERAL_STRING("::after");
default:
MOZ_ASSERT(aPseudoType == CSSPseudoElementType::NotPseudo,
"Unexpected pseudo type");
return EmptyString();
}
}
template <class AnimationType>
void
AnimationCollection<AnimationType>::UpdateCheckGeneration(
nsPresContext* aPresContext)
{
if (aPresContext->RestyleManager()->IsServo()) {
// stylo: ServoRestyleManager does not support animations yet.
return;
}
mCheckGeneration =
aPresContext->RestyleManager()->AsGecko()->GetAnimationGeneration();
}
template<class AnimationType>
/*static*/ nsIAtom*
AnimationCollection<AnimationType>::GetPropertyAtomForPseudoType(
CSSPseudoElementType aPseudoType)
{
nsIAtom* propName = nullptr;
if (aPseudoType == CSSPseudoElementType::NotPseudo) {
propName = TraitsType::ElementPropertyAtom();
} else if (aPseudoType == CSSPseudoElementType::before) {
propName = TraitsType::BeforePropertyAtom();
} else if (aPseudoType == CSSPseudoElementType::after) {
propName = TraitsType::AfterPropertyAtom();
}
return propName;
}
// Explicit class instantiations
template class AnimationCollection<dom::CSSAnimation>;
template class AnimationCollection<dom::CSSTransition>;
} // namespace mozilla
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