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/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* (C) 2002-2003 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2002, 2006, 2008, 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 StyleRule_h
#define StyleRule_h
#include "CSSSelectorList.h"
#include "MediaList.h"
#include <wtf/RefPtr.h>
namespace WebCore {
class CSSRule;
class CSSStyleRule;
class CSSStyleSheet;
class StylePropertySet;
class StyleRuleBase : public WTF::RefCountedBase {
public:
enum Type {
Unknown, // Not used.
Style,
Charset, // Not used. These are internally strings owned by the style sheet.
Import,
Media,
FontFace,
Page,
Keyframes,
Keyframe, // Not used. These are internally non-rule StyleKeyframe objects.
Region
};
Type type() const { return static_cast<Type>(m_type); }
bool isCharsetRule() const { return type() == Charset; }
bool isFontFaceRule() const { return type() == FontFace; }
bool isKeyframesRule() const { return type() == Keyframes; }
bool isMediaRule() const { return type() == Media; }
bool isPageRule() const { return type() == Page; }
bool isStyleRule() const { return type() == Style; }
bool isRegionRule() const { return type() == Region; }
bool isImportRule() const { return type() == Import; }
PassRefPtr<StyleRuleBase> copy() const;
int sourceLine() const { return m_sourceLine; }
void deref()
{
if (derefBase())
destroy();
}
// FIXME: There shouldn't be any need for the null parent version.
PassRefPtr<CSSRule> createCSSOMWrapper(CSSStyleSheet* parentSheet = 0) const;
PassRefPtr<CSSRule> createCSSOMWrapper(CSSRule* parentRule) const;
protected:
StyleRuleBase(Type type, signed sourceLine = 0) : m_type(type), m_sourceLine(sourceLine) { }
StyleRuleBase(const StyleRuleBase& o) : WTF::RefCountedBase(), m_type(o.m_type), m_sourceLine(o.m_sourceLine) { }
~StyleRuleBase() { }
private:
void destroy();
PassRefPtr<CSSRule> createCSSOMWrapper(CSSStyleSheet* parentSheet, CSSRule* parentRule) const;
unsigned m_type : 4;
signed m_sourceLine : 28;
};
class StyleRule : public StyleRuleBase {
public:
static PassRefPtr<StyleRule> create(int sourceLine) { return adoptRef(new StyleRule(sourceLine)); }
~StyleRule();
const CSSSelectorList& selectorList() const { return m_selectorList; }
const StylePropertySet* properties() const { return m_properties.get(); }
StylePropertySet* mutableProperties();
void parserAdoptSelectorVector(Vector<OwnPtr<CSSParserSelector> >& selectors) { m_selectorList.adoptSelectorVector(selectors); }
void wrapperAdoptSelectorList(CSSSelectorList& selectors) { m_selectorList.adopt(selectors); }
void setProperties(PassRefPtr<StylePropertySet>);
PassRefPtr<StyleRule> copy() const { return adoptRef(new StyleRule(*this)); }
static unsigned averageSizeInBytes();
private:
StyleRule(int sourceLine);
StyleRule(const StyleRule&);
RefPtr<StylePropertySet> m_properties;
CSSSelectorList m_selectorList;
};
class StyleRuleFontFace : public StyleRuleBase {
public:
static PassRefPtr<StyleRuleFontFace> create() { return adoptRef(new StyleRuleFontFace); }
~StyleRuleFontFace();
const StylePropertySet* properties() const { return m_properties.get(); }
StylePropertySet* mutableProperties();
void setProperties(PassRefPtr<StylePropertySet>);
PassRefPtr<StyleRuleFontFace> copy() const { return adoptRef(new StyleRuleFontFace(*this)); }
private:
StyleRuleFontFace();
StyleRuleFontFace(const StyleRuleFontFace&);
RefPtr<StylePropertySet> m_properties;
};
class StyleRulePage : public StyleRuleBase {
public:
static PassRefPtr<StyleRulePage> create() { return adoptRef(new StyleRulePage); }
~StyleRulePage();
const CSSSelector* selector() const { return m_selectorList.first(); }
const StylePropertySet* properties() const { return m_properties.get(); }
StylePropertySet* mutableProperties();
void parserAdoptSelectorVector(Vector<OwnPtr<CSSParserSelector> >& selectors) { m_selectorList.adoptSelectorVector(selectors); }
void wrapperAdoptSelectorList(CSSSelectorList& selectors) { m_selectorList.adopt(selectors); }
void setProperties(PassRefPtr<StylePropertySet>);
PassRefPtr<StyleRulePage> copy() const { return adoptRef(new StyleRulePage(*this)); }
private:
StyleRulePage();
StyleRulePage(const StyleRulePage&);
RefPtr<StylePropertySet> m_properties;
CSSSelectorList m_selectorList;
};
class StyleRuleBlock : public StyleRuleBase {
public:
const Vector<RefPtr<StyleRuleBase> >& childRules() const { return m_childRules; }
void wrapperInsertRule(unsigned, PassRefPtr<StyleRuleBase>);
void wrapperRemoveRule(unsigned);
protected:
StyleRuleBlock(Type, Vector<RefPtr<StyleRuleBase> >& adoptRule);
StyleRuleBlock(const StyleRuleBlock&);
private:
Vector<RefPtr<StyleRuleBase> > m_childRules;
};
class StyleRuleMedia : public StyleRuleBlock {
public:
static PassRefPtr<StyleRuleMedia> create(PassRefPtr<MediaQuerySet> media, Vector<RefPtr<StyleRuleBase> >& adoptRules)
{
return adoptRef(new StyleRuleMedia(media, adoptRules));
}
MediaQuerySet* mediaQueries() const { return m_mediaQueries.get(); }
PassRefPtr<StyleRuleMedia> copy() const { return adoptRef(new StyleRuleMedia(*this)); }
private:
StyleRuleMedia(PassRefPtr<MediaQuerySet>, Vector<RefPtr<StyleRuleBase> >& adoptRules);
StyleRuleMedia(const StyleRuleMedia&);
RefPtr<MediaQuerySet> m_mediaQueries;
};
class StyleRuleRegion : public StyleRuleBlock {
public:
static PassRefPtr<StyleRuleRegion> create(Vector<OwnPtr<CSSParserSelector> >* selectors, Vector<RefPtr<StyleRuleBase> >& adoptRules)
{
return adoptRef(new StyleRuleRegion(selectors, adoptRules));
}
const CSSSelectorList& selectorList() const { return m_selectorList; }
PassRefPtr<StyleRuleRegion> copy() const { return adoptRef(new StyleRuleRegion(*this)); }
private:
StyleRuleRegion(Vector<OwnPtr<CSSParserSelector> >*, Vector<RefPtr<StyleRuleBase> >& adoptRules);
StyleRuleRegion(const StyleRuleRegion&);
CSSSelectorList m_selectorList;
};
} // namespace WebCore
#endif // StyleRule_h
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