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tdelibs/khtml/css/css_base.h

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7.6 KiB

/*
* 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)
* 2002 Apple Computer, Inc.
* 2004 Allan Sandfeld Jensen (kde@carewolf.com)
*
* 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 _CSS_BASE_H
#define _CSS_BASE_H
#include "dom/dom_string.h"
#include "dom/dom_misc.h"
#include "xml/dom_nodeimpl.h"
#include "misc/shared.h"
#include <kdemacros.h>
#include <qdatetime.h>
#include <qptrlist.h>
namespace DOM {
class StyleSheetImpl;
class MediaList;
class CSSSelector;
class CSSProperty;
class CSSValueImpl;
class CSSPrimitiveValueImpl;
class CSSStyleDeclarationImpl;
class CSSRuleImpl;
class CSSStyleRuleImpl;
class DocumentImpl;
struct CSSNamespace {
DOMString m_prefix;
DOMString m_uri;
CSSNamespace* m_parent;
CSSNamespace(const DOMString& p, const DOMString& u, CSSNamespace* parent)
:m_prefix(p), m_uri(u), m_parent(parent) {}
~CSSNamespace() { delete m_parent; }
const DOMString& uri() { return m_uri; }
const DOMString& prefix() { return m_prefix; }
CSSNamespace* namespaceForPrefix(const DOMString& 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), attr(0), tag(anyQName), relation( Descendant ),
match( None ), nonCSSHint( false ), pseudoId( 0 ), _pseudoType(PseudoNotParsed)
{}
~CSSSelector() {
delete tagHistory;
delete simpleSelector;
}
/**
* 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 &other ) const;
// tag == -1 means apply to all elements (Selector = *)
unsigned int specificity() const;
/* how the attribute value has to match.... Default is Exact */
enum Match
{
None = 0,
Id,
Exact,
Set,
Class,
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,
PseudoLastChild,
PseudoNthChild,
PseudoNthLastChild,
PseudoOnlyChild,
PseudoFirstOfType,
PseudoLastOfType,
PseudoNthOfType,
PseudoNthLastOfType,
PseudoOnlyOfType,
PseudoLink,
PseudoVisited,
PseudoHover,
PseudoFocus,
PseudoActive,
PseudoTarget,
PseudoLang,
PseudoNot,
PseudoContains,
PseudoRoot,
PseudoEnabled,
PseudoDisabled,
PseudoChecked,
PseudoIndeterminate,
// pseudo-elements:
// inherited:
PseudoFirstLine,
PseudoFirstLetter,
PseudoSelection,
// generated:
PseudoBefore,
PseudoAfter,
PseudoMarker,
PseudoReplaced
};
PseudoType pseudoType() const {
if (_pseudoType == PseudoNotParsed)
extractPseudoType();
return _pseudoType;
}
mutable DOM::DOMString value;
CSSSelector *tagHistory;
CSSSelector* simpleSelector; // Used by :not
DOM::DOMString string_arg; // Used by :contains, :lang and :nth-*
DOM::NodeImpl::Id attr;
DOM::NodeImpl::Id tag;
Relation relation : 3;
mutable Match match : 4;
bool nonCSSHint : 1;
unsigned int pseudoId : 4;
mutable PseudoType _pseudoType : 6;
private:
void extractPseudoType() const;
};
// a style class which has a parent (almost all have)
class StyleBaseImpl : public khtml::TreeShared<StyleBaseImpl>
{
public:
StyleBaseImpl() { m_parent = 0; hasInlinedDecl = false; strictParsing = true; multiLength = false; }
StyleBaseImpl(StyleBaseImpl *p) {
m_parent = p; hasInlinedDecl = false;
strictParsing = (m_parent ? m_parent->useStrictParsing() : true);
multiLength = false;
}
virtual ~StyleBaseImpl() {}
// returns the url of the style sheet this object belongs to
// not const
KURL baseURL();
virtual bool isStyleSheet() const { return false; }
virtual bool isCSSStyleSheet() const { return false; }
virtual bool isStyleSheetList() const { return false; }
virtual bool isMediaList() const { return false; }
virtual bool isRuleList() const { return false; }
virtual bool isRule() const { return false; }
virtual bool isStyleRule() const { return false; }
virtual bool isCharetRule() const { return false; }
virtual bool isImportRule() const { return false; }
virtual bool isMediaRule() const { return false; }
virtual bool isFontFaceRule() const { return false; }
virtual bool isPageRule() const { return false; }
virtual bool isUnknownRule() const { return false; }
virtual bool isStyleDeclaration() const { return false; }
virtual bool isValue() const { return false; }
virtual bool isPrimitiveValue() const { return false; }
virtual bool isValueList() const { return false; }
virtual bool isValueCustom() const { return false; }
void setParent(StyleBaseImpl *parent) { m_parent = parent; }
static void setParsedValue(int propId, const CSSValueImpl *parsedValue,
bool important, bool nonCSSHint, QPtrList<CSSProperty> *propList);
virtual bool parseString(const DOMString &/*cssString*/, bool = false) { return false; }
virtual void checkLoaded() const;
void setStrictParsing( bool b ) { strictParsing = b; }
bool useStrictParsing() const { return strictParsing; }
// not const
StyleSheetImpl* stylesheet();
protected:
bool hasInlinedDecl : 1;
bool strictParsing : 1;
bool multiLength : 1;
};
// a style class which has a list of children (StyleSheets for example)
class StyleListImpl : public StyleBaseImpl
{
public:
StyleListImpl() : StyleBaseImpl() { m_lstChildren = 0; }
StyleListImpl(StyleBaseImpl *parent) : StyleBaseImpl(parent) { m_lstChildren = 0; }
virtual ~StyleListImpl();
unsigned long length() const { return m_lstChildren->count(); }
StyleBaseImpl *item(unsigned long num) const { return m_lstChildren->at(num); }
void append(StyleBaseImpl *item) { m_lstChildren->append(item); }
protected:
QPtrList<StyleBaseImpl> *m_lstChildren;
};
KDE_NO_EXPORT int getPropertyID(const char *tagStr, int len);
}
#endif