зеркало из https://github.com/mozilla/gecko-dev.git
120 строки
3.5 KiB
C++
120 строки
3.5 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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/* representation of CSSImportRule for stylo */
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#include "mozilla/ServoImportRule.h"
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#include "mozilla/ServoBindings.h"
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#include "mozilla/ServoStyleSheet.h"
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namespace mozilla {
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ServoImportRule::ServoImportRule(RefPtr<RawServoImportRule> aRawRule,
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uint32_t aLine, uint32_t aColumn)
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: CSSImportRule(aLine, aColumn)
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, mRawRule(Move(aRawRule))
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{
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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<ServoStyleSheet*>(sheet);
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mChildSheet->SetOwnerRule(this);
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}
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ServoImportRule::~ServoImportRule()
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{
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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 ServoImportRule
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(ServoImportRule)
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NS_INTERFACE_MAP_END_INHERITING(dom::CSSImportRule)
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NS_IMPL_CYCLE_COLLECTION_CLASS(ServoImportRule)
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NS_IMPL_ADDREF_INHERITED(ServoImportRule, dom::CSSImportRule)
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NS_IMPL_RELEASE_INHERITED(ServoImportRule, dom::CSSImportRule)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(ServoImportRule,
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dom::CSSImportRule)
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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(static_cast<nsIDOMCSSStyleSheet*>(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(static_cast<nsIDOMCSSStyleSheet*>(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(ServoImportRule)
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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(dom::CSSImportRule)
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/* virtual */ already_AddRefed<css::Rule>
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ServoImportRule::Clone() const
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{
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// Rule::Clone is only used when CSSStyleSheetInner is cloned in
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// preparation of being mutated. However, ServoStyleSheet never clones
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// anything, so this method should never be called.
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MOZ_ASSERT_UNREACHABLE("Shouldn't be cloning ServoImportRule");
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return nullptr;
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}
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#ifdef DEBUG
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/* virtual */ void
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ServoImportRule::List(FILE* out, int32_t aIndent) const
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{
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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*
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ServoImportRule::GetMedia() const
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{
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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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StyleSheet*
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ServoImportRule::GetStyleSheet() const
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{
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return mChildSheet;
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}
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NS_IMETHODIMP
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ServoImportRule::GetHref(nsAString& aHref)
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{
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Servo_ImportRule_GetHref(mRawRule, &aHref);
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return NS_OK;
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}
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/* virtual */ void
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ServoImportRule::GetCssTextImpl(nsAString& aCssText) const
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{
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Servo_ImportRule_GetCssText(mRawRule, &aCssText);
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}
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/* virtual */ size_t
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ServoImportRule::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
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{
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// TODO Implement this!
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return aMallocSizeOf(this);
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}
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} // namespace mozilla
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