1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/layout/style/GroupRule.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,102 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 + * internal interface representing CSS style rules that contain other
1.11 + * rules, such as @media rules
1.12 + */
1.13 +
1.14 +#ifndef mozilla_css_GroupRule_h__
1.15 +#define mozilla_css_GroupRule_h__
1.16 +
1.17 +#include "mozilla/Attributes.h"
1.18 +#include "mozilla/MemoryReporting.h"
1.19 +#include "mozilla/css/Rule.h"
1.20 +#include "nsCOMArray.h"
1.21 +#include "nsAutoPtr.h"
1.22 +#include "nsCycleCollectionParticipant.h"
1.23 +
1.24 +class nsPresContext;
1.25 +class nsMediaQueryResultCacheKey;
1.26 +
1.27 +namespace mozilla {
1.28 +namespace css {
1.29 +
1.30 +class GroupRuleRuleList;
1.31 +
1.32 +// inherits from Rule so it can be shared between
1.33 +// MediaRule and DocumentRule
1.34 +class GroupRule : public Rule
1.35 +{
1.36 +protected:
1.37 + GroupRule();
1.38 + GroupRule(const GroupRule& aCopy);
1.39 + virtual ~GroupRule();
1.40 +public:
1.41 +
1.42 + NS_DECL_CYCLE_COLLECTION_CLASS(GroupRule)
1.43 + NS_DECL_CYCLE_COLLECTING_ISUPPORTS
1.44 +
1.45 + // implement part of nsIStyleRule and Rule
1.46 + DECL_STYLE_RULE_INHERIT_NO_DOMRULE
1.47 + virtual void SetStyleSheet(nsCSSStyleSheet* aSheet);
1.48 +
1.49 + // to help implement nsIStyleRule
1.50 +#ifdef DEBUG
1.51 + virtual void List(FILE* out = stdout, int32_t aIndent = 0) const MOZ_OVERRIDE;
1.52 +#endif
1.53 +
1.54 +public:
1.55 + void AppendStyleRule(Rule* aRule);
1.56 +
1.57 + int32_t StyleRuleCount() const { return mRules.Count(); }
1.58 + Rule* GetStyleRuleAt(int32_t aIndex) const;
1.59 +
1.60 + typedef nsCOMArray<Rule>::nsCOMArrayEnumFunc RuleEnumFunc;
1.61 + bool EnumerateRulesForwards(RuleEnumFunc aFunc, void * aData) const;
1.62 +
1.63 + /*
1.64 + * The next three methods should never be called unless you have first
1.65 + * called WillDirty() on the parent stylesheet. After they are
1.66 + * called, DidDirty() needs to be called on the sheet.
1.67 + */
1.68 + nsresult DeleteStyleRuleAt(uint32_t aIndex);
1.69 + nsresult InsertStyleRuleAt(uint32_t aIndex, Rule* aRule);
1.70 + nsresult ReplaceStyleRule(Rule *aOld, Rule *aNew);
1.71 +
1.72 + virtual bool UseForPresentation(nsPresContext* aPresContext,
1.73 + nsMediaQueryResultCacheKey& aKey) = 0;
1.74 +
1.75 + // non-virtual -- it is only called by subclasses
1.76 + size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;
1.77 + virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const = 0;
1.78 +
1.79 + static bool
1.80 + CloneRuleInto(Rule* aRule, void* aArray)
1.81 + {
1.82 + nsRefPtr<Rule> clone = aRule->Clone();
1.83 + static_cast<nsCOMArray<Rule>*>(aArray)->AppendObject(clone);
1.84 + return true;
1.85 + }
1.86 +
1.87 +protected:
1.88 + // to help implement nsIDOMCSSRule
1.89 + void AppendRulesToCssText(nsAString& aCssText);
1.90 +
1.91 + // to implement common methods on nsIDOMCSSMediaRule and
1.92 + // nsIDOMCSSMozDocumentRule
1.93 + nsresult GetCssRules(nsIDOMCSSRuleList* *aRuleList);
1.94 + nsresult InsertRule(const nsAString & aRule, uint32_t aIndex,
1.95 + uint32_t* _retval);
1.96 + nsresult DeleteRule(uint32_t aIndex);
1.97 +
1.98 + nsCOMArray<Rule> mRules;
1.99 + nsRefPtr<GroupRuleRuleList> mRuleCollection; // lazily constructed
1.100 +};
1.101 +
1.102 +} // namespace css
1.103 +} // namespace mozilla
1.104 +
1.105 +#endif /* mozilla_css_GroupRule_h__ */
