156 lines
4.3 KiB
C++
156 lines
4.3 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "EffectSet.h"
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#include "mozilla/dom/Element.h" // For Element
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#include "nsCycleCollectionNoteChild.h" // For CycleCollectionNoteChild
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namespace mozilla {
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/* static */ void
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EffectSet::PropertyDtor(void* aObject, nsIAtom* aPropertyName,
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void* aPropertyValue, void* aData)
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{
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EffectSet* effectSet = static_cast<EffectSet*>(aPropertyValue);
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#ifdef DEBUG
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MOZ_ASSERT(!effectSet->mCalledPropertyDtor, "Should not call dtor twice");
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effectSet->mCalledPropertyDtor = true;
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#endif
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delete effectSet;
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}
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void
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EffectSet::Traverse(nsCycleCollectionTraversalCallback& aCallback)
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{
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for (auto iter = mEffects.Iter(); !iter.Done(); iter.Next()) {
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CycleCollectionNoteChild(aCallback, iter.Get()->GetKey(),
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"EffectSet::mEffects[]", aCallback.Flags());
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}
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}
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/* static */ EffectSet*
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EffectSet::GetEffectSet(dom::Element* aElement,
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nsCSSPseudoElements::Type aPseudoType)
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{
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nsIAtom* propName = GetEffectSetPropertyAtom(aPseudoType);
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return static_cast<EffectSet*>(aElement->GetProperty(propName));
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}
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/* static */ EffectSet*
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EffectSet::GetEffectSet(const nsIFrame* aFrame)
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{
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nsIContent* content = aFrame->GetContent();
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if (!content) {
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return nullptr;
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}
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nsIAtom* propName;
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if (aFrame->IsGeneratedContentFrame()) {
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nsIFrame* parent = aFrame->GetParent();
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if (parent->IsGeneratedContentFrame()) {
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return nullptr;
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}
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nsIAtom* name = content->NodeInfo()->NameAtom();
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if (name == nsGkAtoms::mozgeneratedcontentbefore) {
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propName = nsGkAtoms::animationEffectsForBeforeProperty;
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} else if (name == nsGkAtoms::mozgeneratedcontentafter) {
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propName = nsGkAtoms::animationEffectsForAfterProperty;
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} else {
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return nullptr;
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}
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content = content->GetParent();
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if (!content) {
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return nullptr;
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}
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} else {
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if (!content->MayHaveAnimations()) {
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return nullptr;
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}
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propName = nsGkAtoms::animationEffectsProperty;
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}
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return static_cast<EffectSet*>(content->GetProperty(propName));
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}
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/* static */ EffectSet*
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EffectSet::GetOrCreateEffectSet(dom::Element* aElement,
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nsCSSPseudoElements::Type aPseudoType)
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{
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EffectSet* effectSet = GetEffectSet(aElement, aPseudoType);
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if (effectSet) {
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return effectSet;
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}
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nsIAtom* propName = GetEffectSetPropertyAtom(aPseudoType);
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effectSet = new EffectSet();
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nsresult rv = aElement->SetProperty(propName, effectSet,
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&EffectSet::PropertyDtor, true);
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if (NS_FAILED(rv)) {
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NS_WARNING("SetProperty failed");
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// The set must be destroyed via PropertyDtor, otherwise
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// mCalledPropertyDtor assertion is triggered in destructor.
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EffectSet::PropertyDtor(aElement, propName, effectSet, nullptr);
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return nullptr;
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}
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if (aPseudoType == nsCSSPseudoElements::ePseudo_NotPseudoElement) {
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aElement->SetMayHaveAnimations();
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}
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return effectSet;
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}
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/* static */ nsIAtom**
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EffectSet::GetEffectSetPropertyAtoms()
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{
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static nsIAtom* effectSetPropertyAtoms[] =
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{
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nsGkAtoms::animationEffectsProperty,
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nsGkAtoms::animationEffectsForBeforeProperty,
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nsGkAtoms::animationEffectsForAfterProperty,
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nullptr
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};
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return effectSetPropertyAtoms;
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}
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/* static */ nsIAtom*
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EffectSet::GetEffectSetPropertyAtom(nsCSSPseudoElements::Type aPseudoType)
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{
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switch (aPseudoType) {
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case nsCSSPseudoElements::ePseudo_NotPseudoElement:
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return nsGkAtoms::animationEffectsProperty;
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case nsCSSPseudoElements::ePseudo_before:
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return nsGkAtoms::animationEffectsForBeforeProperty;
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case nsCSSPseudoElements::ePseudo_after:
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return nsGkAtoms::animationEffectsForAfterProperty;
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default:
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NS_NOTREACHED("Should not try to get animation effects for a pseudo "
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"other that :before or :after");
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return nullptr;
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}
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}
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void
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EffectSet::AddEffect(dom::KeyframeEffectReadOnly& aEffect)
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{
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mEffects.PutEntry(&aEffect);
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}
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void
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EffectSet::RemoveEffect(dom::KeyframeEffectReadOnly& aEffect)
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{
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mEffects.RemoveEntry(&aEffect);
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}
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} // namespace mozilla
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