1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7 #ifndef mozilla_CSSStyleRule_h
8 #define mozilla_CSSStyleRule_h
10 #include "mozilla/css/GroupRule.h"
11 #include "mozilla/ServoBindingTypes.h"
12 #include "mozilla/NotNull.h"
13 #include "mozilla/WeakPtr.h"
14 #include "mozilla/dom/CSSStyleRuleBinding.h"
16 #include "nsDOMCSSDeclaration.h"
20 class DeclarationBlock
;
26 class CSSStyleRuleDeclaration final
: public nsDOMCSSDeclaration
{
28 NS_DECL_ISUPPORTS_INHERITED
30 css::Rule
* GetParentRule() final
;
31 nsINode
* GetAssociatedNode() const final
;
32 nsISupports
* GetParentObject() const final
;
35 mozilla::DeclarationBlock
* GetOrCreateCSSDeclaration(
36 Operation aOperation
, mozilla::DeclarationBlock
** aCreated
) final
;
37 nsresult
SetCSSDeclaration(DeclarationBlock
* aDecl
,
38 MutationClosureData
* aClosureData
) final
;
39 Document
* DocToUpdate() final
;
40 ParsingEnvironment
GetParsingEnvironment(
41 nsIPrincipal
* aSubjectPrincipal
) const final
;
44 // For accessing the constructor.
45 friend class CSSStyleRule
;
47 explicit CSSStyleRuleDeclaration(
48 already_AddRefed
<StyleLockedDeclarationBlock
> aDecls
);
49 ~CSSStyleRuleDeclaration();
51 inline CSSStyleRule
* Rule();
52 inline const CSSStyleRule
* Rule() const;
54 void SetRawAfterClone(RefPtr
<StyleLockedDeclarationBlock
>);
56 RefPtr
<DeclarationBlock
> mDecls
;
59 class CSSStyleRule final
: public css::GroupRule
, public SupportsWeakPtr
{
61 CSSStyleRule(already_AddRefed
<StyleLockedStyleRule
> aRawRule
,
62 StyleSheet
* aSheet
, css::Rule
* aParentRule
, uint32_t aLine
,
65 NS_DECL_ISUPPORTS_INHERITED
66 NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_INHERITED(CSSStyleRule
,
68 bool IsCCLeaf() const final MOZ_MUST_OVERRIDE
;
70 uint32_t SelectorCount() const;
71 void SelectorTextAt(uint32_t aSelectorIndex
, bool aDesugared
,
73 uint64_t SelectorSpecificityAt(uint32_t aSelectorIndex
, bool aDesugared
);
74 bool SelectorMatchesElement(uint32_t aSelectorIndex
, dom::Element
&,
75 const nsAString
& aPseudo
,
76 bool aRelevantLinkVisited
);
77 NotNull
<DeclarationBlock
*> GetDeclarationBlock() const;
78 void GetSelectorWarnings(nsTArray
<SelectorWarning
>& aResult
) const;
81 StyleCssRuleType
Type() const final
;
82 void GetCssText(nsACString
& aCssText
) const final
;
83 void GetSelectorText(nsACString
& aSelectorText
);
84 void SetSelectorText(const nsACString
& aSelectorText
);
85 nsICSSDeclaration
* Style();
87 StyleLockedStyleRule
* Raw() const { return mRawRule
; }
88 void SetRawAfterClone(RefPtr
<StyleLockedStyleRule
>);
89 already_AddRefed
<StyleLockedCssRules
> GetOrCreateRawRules() final
;
91 // Methods of mozilla::css::Rule
92 size_t SizeOfIncludingThis(MallocSizeOf aMallocSizeOf
) const final
;
94 void List(FILE* out
= stdout
, int32_t aIndent
= 0) const final
;
97 JSObject
* WrapObject(JSContext
*, JS::Handle
<JSObject
*> aGivenProto
) override
;
100 ~CSSStyleRule() = default;
102 void GetSelectorDataAtIndex(uint32_t aSelectorIndex
, bool aDesugared
,
103 nsACString
* aText
, uint64_t* aSpecificity
);
105 // For computing the offset of mDecls.
106 friend class CSSStyleRuleDeclaration
;
108 RefPtr
<StyleLockedStyleRule
> mRawRule
;
109 CSSStyleRuleDeclaration mDecls
;
112 CSSStyleRule
* CSSStyleRuleDeclaration::Rule() {
113 return reinterpret_cast<CSSStyleRule
*>(reinterpret_cast<uint8_t*>(this) -
114 offsetof(CSSStyleRule
, mDecls
));
117 const CSSStyleRule
* CSSStyleRuleDeclaration::Rule() const {
118 return reinterpret_cast<const CSSStyleRule
*>(
119 reinterpret_cast<const uint8_t*>(this) - offsetof(CSSStyleRule
, mDecls
));
123 } // namespace mozilla
125 #endif // mozilla_CSSStyleRule_h