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