blob: 9aa62705d66f47a70e3431de9e14a0c27e6cc364 [file] [log] [blame]
/*
* This file is part of the CSS implementation for KDE.
*
* Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
* 1999 Waldo Bastian (bastian@kde.org)
* Copyright (C) 2004, 2006 Apple Computer, Inc.
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef CSS_BASE_H
#define CSS_BASE_H
#include "PlatformString.h"
#include "dom_qname.h"
#include "Shared.h"
#include <kxmlcore/Vector.h>
namespace KXMLCore {
template <typename T> class PassRefPtr;
}
using KXMLCore::PassRefPtr;
namespace WebCore {
class StyleSheetImpl;
class MediaList;
class CSSSelector;
class CSSProperty;
class CSSValueImpl;
class CSSPrimitiveValueImpl;
class CSSRuleImpl;
class CSSStyleRuleImpl;
class DocumentImpl;
struct CSSNamespace {
AtomicString m_prefix;
AtomicString m_uri;
CSSNamespace* m_parent;
CSSNamespace(const AtomicString& p, const AtomicString& u, CSSNamespace* parent)
:m_prefix(p), m_uri(u), m_parent(parent) {}
~CSSNamespace() { delete m_parent; }
const AtomicString& uri() { return m_uri; }
const AtomicString& prefix() { return m_prefix; }
CSSNamespace* namespaceForPrefix(const AtomicString& prefix) {
if (prefix == m_prefix)
return this;
if (m_parent)
return m_parent->namespaceForPrefix(prefix);
return 0;
}
};
// this class represents a selector for a StyleRule
class CSSSelector
{
public:
CSSSelector()
: tagHistory(0), simpleSelector(0), nextSelector(0), attr(anyQName()), tag(anyQName()),
relation(Descendant), match(None), pseudoId(0), _pseudoType(PseudoNotParsed)
{}
CSSSelector(const QualifiedName& qName)
: tagHistory(0), simpleSelector(0), nextSelector(0), attr(anyQName()), tag(qName),
relation(Descendant), match(None), pseudoId(0), _pseudoType(PseudoNotParsed)
{}
~CSSSelector() {
delete tagHistory;
delete simpleSelector;
delete nextSelector;
}
void append(CSSSelector* n) {
CSSSelector* end = this;
while (end->nextSelector)
end = end->nextSelector;
end->nextSelector = n;
}
CSSSelector* next() { return nextSelector; }
/**
* Print debug output for this selector
*/
void print();
/**
* Re-create selector text from selector's data
*/
DOMString selectorText() const;
// checks if the 2 selectors (including sub selectors) agree.
bool operator ==(const CSSSelector&);
// tag == -1 means apply to all elements (Selector = *)
unsigned specificity();
/* how the attribute value has to match.... Default is Exact */
enum Match {
None = 0,
Id,
Class,
Exact,
Set,
List,
Hyphen,
PseudoClass,
PseudoElement,
Contain, // css3: E[foo*="bar"]
Begin, // css3: E[foo^="bar"]
End // css3: E[foo$="bar"]
};
enum Relation {
Descendant = 0,
Child,
DirectAdjacent,
IndirectAdjacent,
SubSelector
};
enum PseudoType {
PseudoNotParsed = 0,
PseudoOther,
PseudoEmpty,
PseudoFirstChild,
PseudoFirstOfType,
PseudoLastChild,
PseudoLastOfType,
PseudoOnlyChild,
PseudoOnlyOfType,
PseudoFirstLine,
PseudoFirstLetter,
PseudoLink,
PseudoVisited,
PseudoAnyLink,
PseudoHover,
PseudoDrag,
PseudoFocus,
PseudoActive,
PseudoChecked,
PseudoEnabled,
PseudoDisabled,
PseudoIndeterminate,
PseudoTarget,
PseudoBefore,
PseudoAfter,
PseudoLang,
PseudoNot,
PseudoRoot,
PseudoSelection
};
PseudoType pseudoType() const
{
if (_pseudoType == PseudoNotParsed)
extractPseudoType();
return _pseudoType;
}
bool hasTag() const { return tag != anyQName(); }
bool hasAttribute() const { return attr != anyQName(); }
mutable AtomicString value;
CSSSelector* tagHistory;
CSSSelector* simpleSelector; // Used for :not.
CSSSelector* nextSelector; // used for ,-chained selectors
QualifiedName attr;
QualifiedName tag;
Relation relation : 3;
mutable Match match : 4;
unsigned int pseudoId : 3;
mutable PseudoType _pseudoType : 5;
private:
void extractPseudoType() const;
};
// a style class which has a parent (almost all have)
class StyleBaseImpl : public Shared<StyleBaseImpl> {
public:
StyleBaseImpl(StyleBaseImpl* parent)
: m_parent(parent), m_strictParsing(!parent || parent->useStrictParsing()) { }
virtual ~StyleBaseImpl() { }
StyleBaseImpl* parent() const { return m_parent; }
void setParent(StyleBaseImpl* parent) { m_parent = parent; }
// returns the url of the style sheet this object belongs to
String baseURL();
virtual bool isStyleSheet() const { return false; }
virtual bool isCSSStyleSheet() const { return false; }
virtual bool isXSLStyleSheet() const { return false; }
virtual bool isStyleSheetList() const { return false; }
virtual bool isMediaList() { return false; }
virtual bool isRuleList() { return false; }
virtual bool isRule() { return false; }
virtual bool isStyleRule() { return false; }
virtual bool isCharetRule() { return false; }
virtual bool isImportRule() { return false; }
virtual bool isMediaRule() { return false; }
virtual bool isFontFaceRule() { return false; }
virtual bool isPageRule() { return false; }
virtual bool isUnknownRule() { return false; }
virtual bool isStyleDeclaration() { return false; }
virtual bool isValue() { return false; }
virtual bool isPrimitiveValue() const { return false; }
virtual bool isValueList() { return false; }
virtual bool isValueCustom() { return false; }
virtual bool parseString(const String&, bool /*strict*/ = false) { return false; }
virtual void checkLoaded();
void setStrictParsing(bool b) { m_strictParsing = b; }
bool useStrictParsing() const { return m_strictParsing; }
virtual void insertedIntoParent() { }
StyleSheetImpl* stylesheet();
private:
StyleBaseImpl* m_parent;
bool m_strictParsing;
};
// a style class which has a list of children (StyleSheets for example)
class StyleListImpl : public StyleBaseImpl {
public:
StyleListImpl(StyleBaseImpl* parent) : StyleBaseImpl(parent) { }
unsigned length() { return m_children.size(); }
StyleBaseImpl* item(unsigned num) { return num < length() ? m_children[num].get() : 0; }
void append(PassRefPtr<StyleBaseImpl>);
void insert(unsigned position, PassRefPtr<StyleBaseImpl>);
void remove(unsigned position);
protected:
Vector<RefPtr<StyleBaseImpl> > m_children;
};
int getPropertyID(const char *tagStr, int len);
}
#endif