зеркало из https://github.com/mozilla/gecko-dev.git
96 строки
2.7 KiB
C++
96 строки
2.7 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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/*
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* internal interface representing CSS style rules that contain other
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* rules, such as @media rules
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*/
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#ifndef mozilla_css_GroupRule_h__
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#define mozilla_css_GroupRule_h__
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#include "mozilla/Attributes.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/ServoCSSRuleList.h"
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#include "mozilla/css/Rule.h"
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#include "nsCycleCollectionParticipant.h"
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namespace mozilla {
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class StyleSheet;
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namespace dom {
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class CSSRuleList;
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} // namespace dom
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namespace css {
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// inherits from Rule so it can be shared between
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// MediaRule and DocumentRule
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class GroupRule : public Rule {
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protected:
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GroupRule(already_AddRefed<ServoCssRules> aRules, StyleSheet* aSheet,
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Rule* aParentRule, uint32_t aLineNumber, uint32_t aColumnNumber);
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GroupRule(const GroupRule& aCopy) = delete;
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virtual ~GroupRule();
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public:
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(GroupRule, Rule)
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NS_DECL_ISUPPORTS_INHERITED
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virtual bool IsCCLeaf() const override;
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#ifdef DEBUG
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void List(FILE* out = stdout, int32_t aIndent = 0) const override;
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#endif
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void DropSheetReference() override;
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public:
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int32_t StyleRuleCount() const { return mRuleList->Length(); }
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Rule* GetStyleRuleAt(int32_t aIndex) const {
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return mRuleList->GetRule(aIndex);
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}
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/*
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* The next method should never be called unless you have first called
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* WillDirty() on the parent stylesheet.
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*/
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nsresult DeleteStyleRuleAt(uint32_t aIndex) {
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return mRuleList->DeleteRule(aIndex);
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}
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// non-virtual -- it is only called by subclasses
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size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
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virtual size_t SizeOfIncludingThis(
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mozilla::MallocSizeOf aMallocSizeOf) const override = 0;
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// WebIDL API
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dom::CSSRuleList* CssRules() { return mRuleList; }
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uint32_t InsertRule(const nsAString& aRule, uint32_t aIndex,
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ErrorResult& aRv);
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void DeleteRule(uint32_t aIndex, ErrorResult& aRv);
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private:
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RefPtr<ServoCSSRuleList> mRuleList;
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};
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// Implementation of WebIDL CSSConditionRule.
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class ConditionRule : public GroupRule {
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protected:
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using GroupRule::GroupRule;
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public:
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virtual void GetConditionText(nsAString& aConditionText) = 0;
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virtual void SetConditionText(const nsAString& aConditionText,
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ErrorResult& aRv) = 0;
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};
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} // namespace css
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} // namespace mozilla
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#endif /* mozilla_css_GroupRule_h__ */
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