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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
#include "mozilla/dom/CSSNestedDeclarations.h"
#include "mozilla/dom/CSSNestedDeclarationsBinding.h"
#include "mozilla/DeclarationBlock.h"
namespace mozilla::dom {
CSSNestedDeclarationsDeclaration::CSSNestedDeclarationsDeclaration(
already_AddRefed<StyleLockedDeclarationBlock> aDecls)
: mDecls(new DeclarationBlock(std::move(aDecls))) {
mDecls->SetOwningRule(Rule());
}
CSSNestedDeclarationsDeclaration::~CSSNestedDeclarationsDeclaration() {
mDecls->SetOwningRule(nullptr);
}
// QueryInterface implementation for CSSNestedDeclarationsDeclaration
NS_INTERFACE_MAP_BEGIN(CSSNestedDeclarationsDeclaration)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
// We forward the cycle collection interfaces to Rule(), which is
// never null (in fact, we're part of that object!)
if (aIID.Equals(NS_GET_IID(nsCycleCollectionISupports)) ||
aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant))) {
return Rule()->QueryInterface(aIID, aInstancePtr);
}
NS_INTERFACE_MAP_END_INHERITING(nsDOMCSSDeclaration)
NS_IMPL_ADDREF_USING_AGGREGATOR(CSSNestedDeclarationsDeclaration, Rule())
NS_IMPL_RELEASE_USING_AGGREGATOR(CSSNestedDeclarationsDeclaration, Rule())
css::Rule* CSSNestedDeclarationsDeclaration::GetParentRule() { return Rule(); }
nsINode* CSSNestedDeclarationsDeclaration::GetAssociatedNode() const {
return Rule()->GetAssociatedDocumentOrShadowRoot();
}
nsISupports* CSSNestedDeclarationsDeclaration::GetParentObject() const {
return Rule()->GetParentObject();
}
DeclarationBlock* CSSNestedDeclarationsDeclaration::GetOrCreateCSSDeclaration(
Operation aOperation, DeclarationBlock** aCreated) {
if (aOperation != Operation::Read) {
if (StyleSheet* sheet = Rule()->GetStyleSheet()) {
sheet->WillDirty();
}
}
return mDecls;
}
void CSSNestedDeclarationsDeclaration::SetRawAfterClone(
RefPtr<StyleLockedDeclarationBlock> aRaw) {
auto block = MakeRefPtr<DeclarationBlock>(aRaw.forget());
mDecls->SetOwningRule(nullptr);
mDecls = std::move(block);
mDecls->SetOwningRule(Rule());
}
nsresult CSSNestedDeclarationsDeclaration::SetCSSDeclaration(
DeclarationBlock* aDecl, MutationClosureData* aClosureData) {
CSSNestedDeclarations* rule = Rule();
RefPtr<DeclarationBlock> oldDecls;
if (StyleSheet* sheet = rule->GetStyleSheet()) {
if (aDecl != mDecls) {
oldDecls = std::move(mDecls);
oldDecls->SetOwningRule(nullptr);
Servo_NestedDeclarationsRule_SetStyle(rule->Raw(), aDecl->Raw());
mDecls = aDecl;
mDecls->SetOwningRule(rule);
}
sheet->RuleChanged(rule, {StyleRuleChangeKind::StyleRuleDeclarations,
oldDecls ? oldDecls.get() : aDecl, aDecl});
}
return NS_OK;
}
nsDOMCSSDeclaration::ParsingEnvironment
CSSNestedDeclarationsDeclaration::GetParsingEnvironment(nsIPrincipal*) const {
return GetParsingEnvironmentForRule(Rule(),
StyleCssRuleType::NestedDeclarations);
}
CSSNestedDeclarations::CSSNestedDeclarations(
already_AddRefed<StyleLockedNestedDeclarationsRule> aRawRule,
StyleSheet* aSheet, css::Rule* aParentRule, uint32_t aLine,
uint32_t aColumn)
: css::Rule(aSheet, aParentRule, aLine, aColumn),
mRawRule(aRawRule),
mDecls(Servo_NestedDeclarationsRule_GetStyle(mRawRule).Consume()) {}
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(CSSNestedDeclarations, css::Rule)
NS_IMPL_CYCLE_COLLECTION_CLASS(CSSNestedDeclarations)
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(CSSNestedDeclarations, css::Rule)
// Keep this in sync with IsCCLeaf.
// Trace the wrapper for our declaration. This just expands out
// NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER which we can't use
// directly because the wrapper is on the declaration, not on us.
tmp->mDecls.TraceWrapper(aCallbacks, aClosure);
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(CSSNestedDeclarations)
// Keep this in sync with IsCCLeaf.
// Unlink the wrapper for our declaration.
// Note that this has to happen before unlinking css::Rule.
tmp->UnlinkDeclarationWrapper(tmp->mDecls);
NS_IMPL_CYCLE_COLLECTION_UNLINK_END_INHERITED(css::Rule)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CSSNestedDeclarations,
css::Rule)
// Keep this in sync with IsCCLeaf.
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
StyleLockedDeclarationBlock* CSSNestedDeclarations::RawStyle() const {
return mDecls.mDecls->Raw();
}
bool CSSNestedDeclarations::IsCCLeaf() const {
if (!css::Rule::IsCCLeaf()) {
return false;
}
return !mDecls.PreservingWrapper();
}
void CSSNestedDeclarations::GetCssText(nsACString& aCssText) const {
Servo_NestedDeclarationsRule_GetCssText(mRawRule, &aCssText);
}
#ifdef DEBUG
void CSSNestedDeclarations::List(FILE* out, int32_t aIndent) const {
nsAutoCString str;
for (int32_t i = 0; i < aIndent; i++) {
str.AppendLiteral(" ");
}
Servo_NestedDeclarationsRule_Debug(mRawRule, &str);
fprintf_stderr(out, "%s\n", str.get());
}
#endif
StyleCssRuleType CSSNestedDeclarations::Type() const {
return StyleCssRuleType::NestedDeclarations;
}
size_t CSSNestedDeclarations::SizeOfIncludingThis(
MallocSizeOf aMallocSizeOf) const {
size_t n = aMallocSizeOf(this);
// Measurement of the following members may be added later if DMD finds it
// is worthwhile:
// - mRawRule
// - mDecls
return n;
}
void CSSNestedDeclarations::SetRawAfterClone(
RefPtr<StyleLockedNestedDeclarationsRule> aRaw) {
mRawRule = std::move(aRaw);
mDecls.SetRawAfterClone(
Servo_NestedDeclarationsRule_GetStyle(mRawRule).Consume());
}
JSObject* CSSNestedDeclarations::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return CSSNestedDeclarations_Binding::Wrap(aCx, this, aGivenProto);
}
} // namespace mozilla::dom