2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
21 #ifndef CSSStyleSheet_h
22 #define CSSStyleSheet_h
24 #include "core/css/CSSRule.h"
25 #include "core/css/StyleSheet.h"
26 #include "platform/heap/Handle.h"
27 #include "wtf/Noncopyable.h"
28 #include "wtf/text/TextPosition.h"
38 class CSSStyleSheetResource;
43 class StyleSheetContents;
45 enum StyleSheetUpdateType {
47 EntireStyleSheetUpdate
50 class CSSStyleSheet FINAL : public StyleSheet {
52 static PassRefPtrWillBeRawPtr<CSSStyleSheet> create(PassRefPtrWillBeRawPtr<StyleSheetContents>, CSSImportRule* ownerRule = 0);
53 static PassRefPtrWillBeRawPtr<CSSStyleSheet> create(PassRefPtrWillBeRawPtr<StyleSheetContents>, Node* ownerNode);
54 static PassRefPtrWillBeRawPtr<CSSStyleSheet> createInline(Node*, const KURL&, const TextPosition& startPosition = TextPosition::minimumPosition(), const String& encoding = String());
55 static PassRefPtrWillBeRawPtr<CSSStyleSheet> createInline(PassRefPtrWillBeRawPtr<StyleSheetContents>, Node* ownerNode, const TextPosition& startPosition = TextPosition::minimumPosition());
57 virtual ~CSSStyleSheet();
59 virtual CSSStyleSheet* parentStyleSheet() const OVERRIDE;
60 virtual Node* ownerNode() const OVERRIDE { return m_ownerNode; }
61 virtual MediaList* media() const OVERRIDE;
62 virtual String href() const OVERRIDE;
63 virtual String title() const OVERRIDE { return m_title; }
64 virtual bool disabled() const OVERRIDE { return m_isDisabled; }
65 virtual void setDisabled(bool) OVERRIDE;
67 PassRefPtrWillBeRawPtr<CSSRuleList> cssRules();
68 unsigned insertRule(const String& rule, unsigned index, ExceptionState&);
69 unsigned insertRule(const String& rule, ExceptionState&); // Deprecated.
70 void deleteRule(unsigned index, ExceptionState&);
73 PassRefPtrWillBeRawPtr<CSSRuleList> rules();
74 int addRule(const String& selector, const String& style, int index, ExceptionState&);
75 int addRule(const String& selector, const String& style, ExceptionState&);
76 void removeRule(unsigned index, ExceptionState& exceptionState) { deleteRule(index, exceptionState); }
79 unsigned length() const;
80 CSSRule* item(unsigned index);
82 virtual void clearOwnerNode() OVERRIDE;
84 virtual CSSRule* ownerRule() const OVERRIDE { return m_ownerRule; }
85 virtual KURL baseURL() const OVERRIDE;
86 virtual bool isLoading() const OVERRIDE;
88 void clearOwnerRule() { m_ownerRule = nullptr; }
89 Document* ownerDocument() const;
90 MediaQuerySet* mediaQueries() const { return m_mediaQueries.get(); }
91 void setMediaQueries(PassRefPtrWillBeRawPtr<MediaQuerySet>);
92 void setTitle(const String& title) { m_title = title; }
94 class RuleMutationScope {
95 WTF_MAKE_NONCOPYABLE(RuleMutationScope);
98 explicit RuleMutationScope(CSSStyleSheet*);
99 explicit RuleMutationScope(CSSRule*);
100 ~RuleMutationScope();
103 RawPtrWillBeMember<CSSStyleSheet> m_styleSheet;
106 void willMutateRules();
107 void didMutateRules();
108 void didMutate(StyleSheetUpdateType = PartialRuleUpdate);
110 void clearChildRuleCSSOMWrappers();
112 StyleSheetContents* contents() const { return m_contents.get(); }
114 bool isInline() const { return m_isInlineStylesheet; }
115 TextPosition startPositionInSource() const { return m_startPosition; }
118 bool loadCompleted() const { return m_loadCompleted; }
119 void startLoadingDynamicSheet();
121 virtual void trace(Visitor*) OVERRIDE;
124 CSSStyleSheet(PassRefPtrWillBeRawPtr<StyleSheetContents>, CSSImportRule* ownerRule);
125 CSSStyleSheet(PassRefPtrWillBeRawPtr<StyleSheetContents>, Node* ownerNode, bool isInlineStylesheet, const TextPosition& startPosition);
127 virtual bool isCSSStyleSheet() const OVERRIDE { return true; }
128 virtual String type() const OVERRIDE { return "text/css"; }
130 void reattachChildRuleCSSOMWrappers();
132 bool canAccessRules() const;
134 void setLoadCompleted(bool);
136 RefPtrWillBeMember<StyleSheetContents> m_contents;
137 bool m_isInlineStylesheet;
140 RefPtrWillBeMember<MediaQuerySet> m_mediaQueries;
142 RawPtrWillBeMember<Node> m_ownerNode;
143 RawPtrWillBeMember<CSSRule> m_ownerRule;
145 TextPosition m_startPosition;
146 bool m_loadCompleted;
147 mutable RefPtrWillBeMember<MediaList> m_mediaCSSOMWrapper;
148 mutable WillBeHeapVector<RefPtrWillBeMember<CSSRule> > m_childRuleCSSOMWrappers;
149 mutable OwnPtrWillBeMember<CSSRuleList> m_ruleListCSSOMWrapper;
152 inline CSSStyleSheet::RuleMutationScope::RuleMutationScope(CSSStyleSheet* sheet)
153 : m_styleSheet(sheet)
156 m_styleSheet->willMutateRules();
159 inline CSSStyleSheet::RuleMutationScope::RuleMutationScope(CSSRule* rule)
160 : m_styleSheet(rule ? rule->parentStyleSheet() : 0)
163 m_styleSheet->willMutateRules();
166 inline CSSStyleSheet::RuleMutationScope::~RuleMutationScope()
169 m_styleSheet->didMutateRules();
172 DEFINE_TYPE_CASTS(CSSStyleSheet, StyleSheet, sheet, sheet->isCSSStyleSheet(), sheet.isCSSStyleSheet());