зеркало из https://github.com/mozilla/gecko-dev.git
115 строки
3.4 KiB
C++
115 строки
3.4 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 "mozilla/dom/CSSImportRule.h"
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#include "mozilla/dom/CSSImportRuleBinding.h"
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#include "mozilla/dom/MediaList.h"
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#include "mozilla/ServoBindings.h"
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#include "mozilla/StyleSheet.h"
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namespace mozilla {
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namespace dom {
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CSSImportRule::CSSImportRule(RefPtr<RawServoImportRule> aRawRule,
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StyleSheet* aSheet, css::Rule* aParentRule,
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uint32_t aLine, uint32_t aColumn)
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: css::Rule(aSheet, aParentRule, aLine, aColumn),
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mRawRule(std::move(aRawRule)) {
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const auto* sheet = Servo_ImportRule_GetSheet(mRawRule.get());
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MOZ_ASSERT(sheet);
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mChildSheet = const_cast<StyleSheet*>(sheet);
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mChildSheet->SetOwnerRule(this);
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}
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CSSImportRule::~CSSImportRule() {
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if (mChildSheet) {
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mChildSheet->SetOwnerRule(nullptr);
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}
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}
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// QueryInterface implementation for CSSImportRule
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(CSSImportRule)
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NS_INTERFACE_MAP_END_INHERITING(css::Rule)
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NS_IMPL_CYCLE_COLLECTION_CLASS(CSSImportRule)
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NS_IMPL_ADDREF_INHERITED(CSSImportRule, css::Rule)
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NS_IMPL_RELEASE_INHERITED(CSSImportRule, css::Rule)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CSSImportRule, css::Rule)
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// Note the child sheet twice, since the Servo rule also holds a strong
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// reference to it.
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mChildSheet");
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cb.NoteXPCOMChild(tmp->mChildSheet);
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MOZ_ASSERT_IF(tmp->mRawRule,
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Servo_ImportRule_GetSheet(tmp->mRawRule) == tmp->mChildSheet);
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cb.NoteXPCOMChild(tmp->mChildSheet);
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NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mRawRule.stylesheet");
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(CSSImportRule)
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if (tmp->mChildSheet) {
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tmp->mChildSheet->SetOwnerRule(nullptr);
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tmp->mChildSheet = nullptr;
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}
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tmp->mRawRule = nullptr;
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END_INHERITED(css::Rule)
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#ifdef DEBUG
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/* virtual */
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void CSSImportRule::List(FILE* out, int32_t aIndent) const {
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nsAutoCString str;
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for (int32_t i = 0; i < aIndent; i++) {
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str.AppendLiteral(" ");
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}
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Servo_ImportRule_Debug(mRawRule, &str);
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fprintf_stderr(out, "%s\n", str.get());
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}
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#endif
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dom::MediaList* CSSImportRule::GetMedia() const {
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// When Bug 1326509 is fixed, we can assert mChildSheet instead.
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return mChildSheet ? mChildSheet->Media() : nullptr;
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}
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void CSSImportRule::DropSheetReference() {
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if (mChildSheet) {
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mChildSheet->RemoveFromParent();
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}
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Rule::DropSheetReference();
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}
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void CSSImportRule::GetHref(nsAString& aHref) const {
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Servo_ImportRule_GetHref(mRawRule, &aHref);
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}
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/* virtual */
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void CSSImportRule::GetCssText(nsAString& aCssText) const {
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Servo_ImportRule_GetCssText(mRawRule, &aCssText);
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}
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/* virtual */
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size_t CSSImportRule::SizeOfIncludingThis(
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mozilla::MallocSizeOf aMallocSizeOf) const {
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// TODO Implement this!
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return aMallocSizeOf(this);
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}
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bool CSSImportRule::IsCCLeaf() const {
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// We're not a leaf.
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return false;
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}
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/* virtual */
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JSObject* CSSImportRule::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return CSSImportRule_Binding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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