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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/dom/CSSKeyframeRule.h"
#include "mozilla/DeclarationBlock.h"
#include "mozilla/dom/CSSKeyframeRuleBinding.h"
#include "nsDOMCSSDeclaration.h"
namespace mozilla {
namespace dom {
// -------------------------------------------
// CSSKeyframeDeclaration
//
class CSSKeyframeDeclaration : public nsDOMCSSDeclaration {
public:
explicit CSSKeyframeDeclaration(CSSKeyframeRule* aRule) : mRule(aRule) {
mDecls =
new DeclarationBlock(Servo_Keyframe_GetStyle(aRule->Raw()).Consume());
}
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(CSSKeyframeDeclaration,
nsICSSDeclaration)
css::Rule* GetParentRule() final { return mRule; }
void DropReference() {
mRule = nullptr;
mDecls->SetOwningRule(nullptr);
}
DeclarationBlock* GetOrCreateCSSDeclaration(
Operation aOperation, DeclarationBlock** aCreated) final {
return mDecls;
}
nsresult SetCSSDeclaration(DeclarationBlock* aDecls,
MutationClosureData* aClosureData) final {
if (!mRule) {
return NS_OK;
}
mRule->UpdateRule([this, aDecls]() {
if (mDecls != aDecls) {
mDecls->SetOwningRule(nullptr);
mDecls = aDecls;
mDecls->SetOwningRule(mRule);
Servo_Keyframe_SetStyle(mRule->Raw(), mDecls->Raw());
}
});
return NS_OK;
}
ParsingEnvironment GetParsingEnvironment(
nsIPrincipal* aSubjectPrincipal) const final {
return GetParsingEnvironmentForRule(mRule, CSSRule_Binding::KEYFRAME_RULE);
}
Document* DocToUpdate() final { return nullptr; }
nsINode* GetParentObject() final {
return mRule ? mRule->GetParentObject() : nullptr;
}
size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
size_t n = aMallocSizeOf(this);
// TODO we may want to add size of mDecls as well
return n;
}
private:
virtual ~CSSKeyframeDeclaration() {
MOZ_ASSERT(!mRule, "Backpointer should have been cleared");
}
CSSKeyframeRule* mRule;
RefPtr<DeclarationBlock> mDecls;
};
NS_IMPL_CYCLE_COLLECTING_ADDREF(CSSKeyframeDeclaration)
NS_IMPL_CYCLE_COLLECTING_RELEASE(CSSKeyframeDeclaration)
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(CSSKeyframeDeclaration)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CSSKeyframeDeclaration)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_END_INHERITING(nsDOMCSSDeclaration)
// -------------------------------------------
// CSSKeyframeRule
//
CSSKeyframeRule::CSSKeyframeRule(already_AddRefed<RawServoKeyframe> aRaw,
StyleSheet* aSheet, css::Rule* aParentRule,
uint32_t aLine, uint32_t aColumn)
: css::Rule(aSheet, aParentRule, aLine, aColumn), mRaw(aRaw) {}
CSSKeyframeRule::~CSSKeyframeRule() {
if (mDeclaration) {
mDeclaration->DropReference();
}
}
NS_IMPL_ADDREF_INHERITED(CSSKeyframeRule, css::Rule)
NS_IMPL_RELEASE_INHERITED(CSSKeyframeRule, css::Rule)
// QueryInterface implementation for nsCSSKeyframeRule
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CSSKeyframeRule)
NS_INTERFACE_MAP_END_INHERITING(css::Rule)
NS_IMPL_CYCLE_COLLECTION_CLASS(CSSKeyframeRule)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(CSSKeyframeRule, css::Rule)
if (tmp->mDeclaration) {
tmp->mDeclaration->DropReference();
tmp->mDeclaration = nullptr;
}
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CSSKeyframeRule, css::Rule)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDeclaration)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
bool CSSKeyframeRule::IsCCLeaf() const {
return Rule::IsCCLeaf() && !mDeclaration;
}
#ifdef DEBUG
/* virtual */
void CSSKeyframeRule::List(FILE* out, int32_t aIndent) const {
nsAutoCString str;
for (int32_t i = 0; i < aIndent; i++) {
str.AppendLiteral(" ");
}
Servo_Keyframe_Debug(mRaw, &str);
fprintf_stderr(out, "%s\n", str.get());
}
#endif
template <typename Func>
void CSSKeyframeRule::UpdateRule(Func aCallback) {
if (IsReadOnly()) {
return;
}
aCallback();
if (StyleSheet* sheet = GetStyleSheet()) {
sheet->RuleChanged(this, StyleRuleChangeKind::Generic);
}
}
void CSSKeyframeRule::GetKeyText(nsACString& aKeyText) {
Servo_Keyframe_GetKeyText(mRaw, &aKeyText);
}
void CSSKeyframeRule::SetKeyText(const nsACString& aKeyText) {
UpdateRule(
[this, &aKeyText]() { Servo_Keyframe_SetKeyText(mRaw, &aKeyText); });
}
void CSSKeyframeRule::GetCssText(nsACString& aCssText) const {
Servo_Keyframe_GetCssText(mRaw, &aCssText);
}
nsICSSDeclaration* CSSKeyframeRule::Style() {
if (!mDeclaration) {
mDeclaration = new CSSKeyframeDeclaration(this);
}
return mDeclaration;
}
size_t CSSKeyframeRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const {
size_t n = aMallocSizeOf(this);
if (mDeclaration) {
n += mDeclaration->SizeOfIncludingThis(aMallocSizeOf);
}
return n;
}
/* virtual */
JSObject* CSSKeyframeRule::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return CSSKeyframeRule_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace dom
} // namespace mozilla
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