/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* 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/IncrementalClearCOMRuleArray.h" #include "mozilla/MemoryReporting.h" #include "mozilla/css/Rule.h" #include "nsCycleCollectionParticipant.h" class nsPresContext; class nsMediaQueryResultCacheKey; namespace mozilla { class CSSStyleSheet; namespace css { class GroupRuleRuleList; // inherits from Rule so it can be shared between // MediaRule and DocumentRule class GroupRule : public Rule { protected: GroupRule(uint32_t aLineNumber, uint32_t aColumnNumber); GroupRule(const GroupRule& aCopy); virtual ~GroupRule(); public: NS_DECL_CYCLE_COLLECTION_CLASS(GroupRule) NS_DECL_CYCLE_COLLECTING_ISUPPORTS // implement part of Rule DECL_STYLE_RULE_INHERIT_NO_DOMRULE #ifdef DEBUG virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override; #endif virtual void SetStyleSheet(CSSStyleSheet* aSheet) override; public: void AppendStyleRule(Rule* aRule); int32_t StyleRuleCount() const { return mRules.Count(); } Rule* GetStyleRuleAt(int32_t aIndex) const; typedef IncrementalClearCOMRuleArray::nsCOMArrayEnumFunc RuleEnumFunc; bool EnumerateRulesForwards(RuleEnumFunc aFunc, void * aData) const; /* * The next three methods should never be called unless you have first * called WillDirty() on the parent stylesheet. After they are * called, DidDirty() needs to be called on the sheet. */ nsresult DeleteStyleRuleAt(uint32_t aIndex); nsresult InsertStyleRuleAt(uint32_t aIndex, Rule* aRule); virtual bool UseForPresentation(nsPresContext* aPresContext, nsMediaQueryResultCacheKey& aKey) = 0; // non-virtual -- it is only called by subclasses size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const; virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const override = 0; static bool CloneRuleInto(Rule* aRule, void* aArray) { RefPtr<Rule> clone = aRule->Clone(); static_cast<IncrementalClearCOMRuleArray*>(aArray)->AppendObject(clone); return true; } protected: // to help implement nsIDOMCSSRule void AppendRulesToCssText(nsAString& aCssText); // to implement common methods on nsIDOMCSSMediaRule and // nsIDOMCSSMozDocumentRule nsresult GetCssRules(nsIDOMCSSRuleList* *aRuleList); nsresult InsertRule(const nsAString & aRule, uint32_t aIndex, uint32_t* _retval); nsresult DeleteRule(uint32_t aIndex); IncrementalClearCOMRuleArray mRules; RefPtr<GroupRuleRuleList> mRuleCollection; // lazily constructed }; } // namespace css } // namespace mozilla #endif /* mozilla_css_GroupRule_h__ */