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/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* 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
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* 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 "CSSParserMode.h"
#include "StyleSheet.h"
#include <wtf/HashMap.h>
#include <wtf/text/AtomicStringHash.h>
namespace WebCore {
class CSSCharsetRule;
class CSSImportRule;
class CSSParser;
class CSSRule;
class CSSRuleList;
class CSSStyleSheet;
class CachedCSSStyleSheet;
class CachedResourceLoader;
class Document;
class MediaQuerySet;
class SecurityOrigin;
class StyleRuleBase;
class StyleRuleImport;
typedef int ExceptionCode;
class StyleSheetInternal : public RefCounted<StyleSheetInternal> {
public:
static PassRefPtr<StyleSheetInternal> create(const CSSParserContext& context = CSSParserContext(CSSStrictMode))
{
return adoptRef(new StyleSheetInternal(0, String(), KURL(), context));
}
static PassRefPtr<StyleSheetInternal> create(const String& originalURL, const KURL& finalURL, const CSSParserContext& context)
{
return adoptRef(new StyleSheetInternal(0, originalURL, finalURL, context));
}
static PassRefPtr<StyleSheetInternal> create(StyleRuleImport* ownerRule, const String& originalURL, const KURL& finalURL, const CSSParserContext& context)
{
return adoptRef(new StyleSheetInternal(ownerRule, originalURL, finalURL, context));
}
~StyleSheetInternal();
const CSSParserContext& parserContext() const { return m_parserContext; }
const AtomicString& determineNamespace(const AtomicString& prefix);
void styleSheetChanged();
void parseAuthorStyleSheet(const CachedCSSStyleSheet*, const SecurityOrigin*);
bool parseString(const String&);
bool parseStringAtLine(const String&, int startLineNumber);
bool isCacheable() const;
bool isLoading() const;
void checkLoaded();
void startLoadingDynamicSheet();
StyleSheetInternal* rootStyleSheet() const;
Node* singleOwnerNode() const;
Document* singleOwnerDocument() const;
const String& charset() const { return m_parserContext.charset; }
bool loadCompleted() const { return m_loadCompleted; }
KURL completeURL(const String& url) const;
void addSubresourceStyleURLs(ListHashSet<KURL>&);
void setIsUserStyleSheet(bool b) { m_isUserStyleSheet = b; }
bool isUserStyleSheet() const { return m_isUserStyleSheet; }
void setHasSyntacticallyValidCSSHeader(bool b) { m_hasSyntacticallyValidCSSHeader = b; }
bool hasSyntacticallyValidCSSHeader() const { return m_hasSyntacticallyValidCSSHeader; }
void parserAddNamespace(const AtomicString& prefix, const AtomicString& uri);
void parserAppendRule(PassRefPtr<StyleRuleBase>);
void parserSetEncodingFromCharsetRule(const String& encoding);
void parserSetUsesRemUnits(bool b) { m_usesRemUnits = b; }
void clearRules();
// Rules other than @charset and @import.
const Vector<RefPtr<StyleRuleBase> >& childRules() const { return m_childRules; }
const Vector<RefPtr<StyleRuleImport> >& importRules() const { return m_importRules; }
void notifyLoadedSheet(const CachedCSSStyleSheet*);
StyleSheetInternal* parentStyleSheet() const;
StyleRuleImport* ownerRule() const { return m_ownerRule; }
void clearOwnerRule() { m_ownerRule = 0; }
// Note that href is the URL that started the redirect chain that led to
// this style sheet. This property probably isn't useful for much except
// the JavaScript binding (which needs to use this value for security).
String originalURL() const { return m_originalURL; }
const KURL& finalURL() const { return m_finalURL; }
const KURL& baseURL() const { return m_parserContext.baseURL; }
unsigned ruleCount() const;
bool usesRemUnits() const { return m_usesRemUnits; }
unsigned estimatedSizeInBytes() const;
bool wrapperInsertRule(PassRefPtr<StyleRuleBase>, unsigned index);
void wrapperDeleteRule(unsigned index);
PassRefPtr<CSSRule> createChildRuleCSSOMWrapper(unsigned index, CSSStyleSheet* parentWrapper);
PassRefPtr<StyleSheetInternal> copy() const { return adoptRef(new StyleSheetInternal(*this)); }
void registerClient(CSSStyleSheet*);
void unregisterClient(CSSStyleSheet*);
private:
StyleSheetInternal(StyleRuleImport* ownerRule, const String& originalURL, const KURL& baseURL, const CSSParserContext&);
StyleSheetInternal(const StyleSheetInternal&);
void clearCharsetRule();
bool hasCharsetRule() const { return !m_encodingFromCharsetRule.isNull(); }
StyleRuleImport* m_ownerRule;
String m_originalURL;
KURL m_finalURL;
String m_encodingFromCharsetRule;
Vector<RefPtr<StyleRuleImport> > m_importRules;
Vector<RefPtr<StyleRuleBase> > m_childRules;
typedef HashMap<AtomicString, AtomicString> PrefixNamespaceURIMap;
PrefixNamespaceURIMap m_namespaces;
bool m_loadCompleted : 1;
bool m_isUserStyleSheet : 1;
bool m_hasSyntacticallyValidCSSHeader : 1;
bool m_didLoadErrorOccur : 1;
bool m_usesRemUnits : 1;
bool m_hasMutated : 1;
CSSParserContext m_parserContext;
Vector<CSSStyleSheet*> m_clients;
};
class CSSStyleSheet : public StyleSheet {
public:
static RefPtr<CSSStyleSheet> create(PassRefPtr<StyleSheetInternal> sheet, CSSImportRule* ownerRule = 0)
{
return adoptRef(new CSSStyleSheet(sheet, ownerRule));
}
static RefPtr<CSSStyleSheet> create(PassRefPtr<StyleSheetInternal> sheet, Node* ownerNode)
{
return adoptRef(new CSSStyleSheet(sheet, ownerNode));
}
static PassRefPtr<CSSStyleSheet> createInline(Node*, const KURL&, 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 { return m_internal->originalURL(); }
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, ExceptionCode&);
void deleteRule(unsigned index, ExceptionCode&);
// IE Extensions
PassRefPtr<CSSRuleList> rules();
int addRule(const String& selector, const String& style, int index, ExceptionCode&);
int addRule(const String& selector, const String& style, ExceptionCode&);
void removeRule(unsigned index, ExceptionCode& ec) { deleteRule(index, ec); }
// For CSSRuleList.
unsigned length() const;
CSSRule* item(unsigned index);
virtual void clearOwnerNode() OVERRIDE { m_ownerNode = 0; }
virtual CSSImportRule* ownerRule() const OVERRIDE { return m_ownerRule; }
virtual KURL baseURL() const OVERRIDE { return m_internal->baseURL(); }
virtual bool isLoading() const OVERRIDE { return m_internal->isLoading(); }
void clearOwnerRule() { m_ownerRule = 0; }
void styleSheetChanged() { m_internal->styleSheetChanged(); }
Document* ownerDocument() const;
MediaQuerySet* mediaQueries() const { return m_mediaQueries.get(); }
void setMediaQueries(PassRefPtr<MediaQuerySet>);
void setTitle(const String& title) { m_title = title; }
void clearChildRuleCSSOMWrappers();
StyleSheetInternal* internal() const { return m_internal.get(); }
private:
CSSStyleSheet(PassRefPtr<StyleSheetInternal>, CSSImportRule* ownerRule);
CSSStyleSheet(PassRefPtr<StyleSheetInternal>, Node* ownerNode);
virtual bool isCSSStyleSheet() const { return true; }
virtual String type() const { return "text/css"; }
RefPtr<StyleSheetInternal> m_internal;
bool m_isDisabled;
String m_title;
RefPtr<MediaQuerySet> m_mediaQueries;
Node* m_ownerNode;
CSSImportRule* m_ownerRule;
mutable RefPtr<MediaList> m_mediaCSSOMWrapper;
mutable Vector<RefPtr<CSSRule> > m_childRuleCSSOMWrappers;
mutable OwnPtr<CSSRuleList> m_ruleListCSSOMWrapper;
};
} // namespace
#endif
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