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* (C) 1999-2003 Lars Knoll (
* Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* Library General Public License for more details.
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
#ifndef CSSStyleSheet_h
#define CSSStyleSheet_h
#include "core/css/CSSRule.h"
#include "core/css/StyleSheet.h"
#include "wtf/Noncopyable.h"
#include "wtf/text/TextPosition.h"
namespace WebCore {
class CSSCharsetRule;
class CSSImportRule;
class CSSParser;
class CSSRule;
class CSSRuleList;
class CSSStyleSheet;
class CSSStyleSheetResource;
class Document;
class ExceptionState;
class MediaQuerySet;
class SecurityOrigin;
class StyleSheetContents;
enum StyleSheetUpdateType {
class CSSStyleSheet : public StyleSheet {
static PassRefPtr<CSSStyleSheet> create(PassRefPtr<StyleSheetContents>, CSSImportRule* ownerRule = 0);
static PassRefPtr<CSSStyleSheet> create(PassRefPtr<StyleSheetContents>, Node* ownerNode);
static PassRefPtr<CSSStyleSheet> createInline(Node*, const KURL&, const TextPosition& startPosition = TextPosition::minimumPosition(), const String& encoding = String());
virtual ~CSSStyleSheet();
virtual CSSStyleSheet* parentStyleSheet() const OVERRIDE;
virtual Node* ownerNode() const OVERRIDE { return m_ownerNode; }
virtual MediaList* media() const OVERRIDE;
virtual String href() const OVERRIDE;
virtual String title() const OVERRIDE { return m_title; }
virtual bool disabled() const OVERRIDE { return m_isDisabled; }
virtual void setDisabled(bool) OVERRIDE;
PassRefPtr<CSSRuleList> cssRules();
unsigned insertRule(const String& rule, unsigned index, ExceptionState&);
void deleteRule(unsigned index, ExceptionState&);
// IE Extensions
PassRefPtr<CSSRuleList> rules();
int addRule(const String& selector, const String& style, int index, ExceptionState&);
int addRule(const String& selector, const String& style, ExceptionState&);
void removeRule(unsigned index, ExceptionState& es) { deleteRule(index, es); }
// For CSSRuleList.
unsigned length() const;
CSSRule* item(unsigned index);
virtual void clearOwnerNode() OVERRIDE { didMutate(EntireStyleSheetUpdate); m_ownerNode = 0; }
virtual CSSRule* ownerRule() const OVERRIDE { return m_ownerRule; }
virtual KURL baseURL() const OVERRIDE;
virtual bool isLoading() const OVERRIDE;
void clearOwnerRule() { m_ownerRule = 0; }
Document* ownerDocument() const;
MediaQuerySet* mediaQueries() const { return m_mediaQueries.get(); }
void setMediaQueries(PassRefPtr<MediaQuerySet>);
void setTitle(const String& title) { m_title = title; }
class RuleMutationScope {
CSSStyleSheet* m_styleSheet;
void willMutateRules();
void didMutateRules();
void didMutate(StyleSheetUpdateType = PartialRuleUpdate);
void clearChildRuleCSSOMWrappers();
void registerExtraChildRuleCSSOMWrapper(PassRefPtr<CSSRule>);
StyleSheetContents* contents() const { return m_contents.get(); }
bool isInline() const { return m_isInlineStylesheet; }
TextPosition startPositionInSource() const { return m_startPosition; }
CSSStyleSheet(PassRefPtr<StyleSheetContents>, CSSImportRule* ownerRule);
CSSStyleSheet(PassRefPtr<StyleSheetContents>, Node* ownerNode, bool isInlineStylesheet, const TextPosition& startPosition);
virtual bool isCSSStyleSheet() const { return true; }
virtual String type() const { return "text/css"; }
void extraCSSOMWrapperIndices(Vector<unsigned>& indices);
void reattachChildRuleCSSOMWrappers(const Vector<unsigned>& extraCSSOMWrapperIndices);
bool canAccessRules() const;
RefPtr<StyleSheetContents> m_contents;
bool m_isInlineStylesheet;
bool m_isDisabled;
String m_title;
RefPtr<MediaQuerySet> m_mediaQueries;
Node* m_ownerNode;
CSSRule* m_ownerRule;
TextPosition m_startPosition;
mutable RefPtr<MediaList> m_mediaCSSOMWrapper;
mutable Vector<RefPtr<CSSRule> > m_childRuleCSSOMWrappers;
// These are CSSOMWrappers that come from getMatchedCSSRules and thus don't map 1-1 to
// the StyleRules in the StyleSheetContents.
mutable Vector<RefPtr<CSSRule> > m_extraChildRuleCSSOMWrappers;
mutable OwnPtr<CSSRuleList> m_ruleListCSSOMWrapper;
inline CSSStyleSheet::RuleMutationScope::RuleMutationScope(CSSStyleSheet* sheet)
: m_styleSheet(sheet)
if (m_styleSheet)
inline CSSStyleSheet::RuleMutationScope::RuleMutationScope(CSSRule* rule)
: m_styleSheet(rule ? rule->parentStyleSheet() : 0)
if (m_styleSheet)
inline CSSStyleSheet::RuleMutationScope::~RuleMutationScope()
if (m_styleSheet)
} // namespace