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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* (C) 2001 Peter Kelly (pmk@post.com)
* (C) 2001 Dirk Mueller (mueller@kde.org)
* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2010 Apple Inc. All rights reserved.
* Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
*
* 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 ElementAttributeData_h
#define ElementAttributeData_h
#include "Attr.h"
#include "Attribute.h"
#include "SpaceSplitString.h"
#include "StylePropertySet.h"
#include <wtf/NotFound.h>
namespace WebCore {
class Element;
class AttributeVector : public Vector<RefPtr<Attribute>, 4> {
friend class ElementAttributeData;
public:
static PassOwnPtr<AttributeVector> create()
{
return adoptPtr(new AttributeVector());
}
Attribute* attributeItem(unsigned index) const { return at(index).get(); }
Attribute* getAttributeItem(const QualifiedName&) const;
size_t getAttributeItemIndex(const QualifiedName&) const;
// Used during parsing: only inserts if not already there.
void insertAttribute(PassRefPtr<Attribute> newAttribute);
void removeAttribute(const QualifiedName&);
private:
AttributeVector() { }
};
inline Attribute* AttributeVector::getAttributeItem(const QualifiedName& name) const
{
size_t index = getAttributeItemIndex(name);
if (index != notFound)
return at(index).get();
return 0;
}
inline size_t AttributeVector::getAttributeItemIndex(const QualifiedName& name) const
{
for (unsigned i = 0; i < size(); ++i) {
if (at(i)->name().matches(name))
return i;
}
return notFound;
}
inline void AttributeVector::insertAttribute(PassRefPtr<Attribute> newAttribute)
{
if (!getAttributeItem(newAttribute->name()))
append(newAttribute);
}
class ElementAttributeData {
public:
static PassOwnPtr<ElementAttributeData> create()
{
return adoptPtr(new ElementAttributeData);
}
~ElementAttributeData();
void clearClass() { m_classNames.clear(); }
void setClass(const String& className, bool shouldFoldCase);
const SpaceSplitString& classNames() const { return m_classNames; }
const AtomicString& idForStyleResolution() const { return m_idForStyleResolution; }
void setIdForStyleResolution(const AtomicString& newId) { m_idForStyleResolution = newId; }
StylePropertySet* inlineStyle() { return m_inlineStyleDecl.get(); }
StylePropertySet* ensureInlineStyle(StyledElement*);
StylePropertySet* ensureMutableInlineStyle(StyledElement*);
void updateInlineStyleAvoidingMutation(StyledElement*, const String& text);
void destroyInlineStyle(StyledElement*);
StylePropertySet* attributeStyle() const { return m_attributeStyle.get(); }
void setAttributeStyle(PassRefPtr<StylePropertySet> style) { m_attributeStyle = style; }
size_t length() const { return m_attributes.size(); }
bool isEmpty() const { return m_attributes.isEmpty(); }
PassRefPtr<Attr> getAttributeNode(const String&, bool shouldIgnoreAttributeCase, Element*) const;
PassRefPtr<Attr> getAttributeNode(const QualifiedName&, Element*) const;
// Internal interface.
Attribute* attributeItem(unsigned index) const { return m_attributes.attributeItem(index); }
Attribute* getAttributeItem(const QualifiedName& name) const { return m_attributes.getAttributeItem(name); }
size_t getAttributeItemIndex(const QualifiedName& name) const { return m_attributes.getAttributeItemIndex(name); }
size_t getAttributeItemIndex(const String& name, bool shouldIgnoreAttributeCase) const;
// These functions do no error checking.
void addAttribute(PassRefPtr<Attribute>, Element*);
void removeAttribute(const QualifiedName&, Element*);
void removeAttribute(size_t index, Element*);
PassRefPtr<Attr> takeAttribute(size_t index, Element*);
bool hasID() const { return !m_idForStyleResolution.isNull(); }
bool hasClass() const { return !m_classNames.isNull(); }
bool isEquivalent(const ElementAttributeData* other) const;
private:
friend class Element;
ElementAttributeData()
{
}
void detachAttributesFromElement();
void copyAttributesToVector(Vector<RefPtr<Attribute> >&);
Attribute* getAttributeItem(const String& name, bool shouldIgnoreAttributeCase) const;
size_t getAttributeItemIndexSlowCase(const String& name, bool shouldIgnoreAttributeCase) const;
void setAttributes(const ElementAttributeData& other, Element*);
void clearAttributes();
void replaceAttribute(size_t index, PassRefPtr<Attribute>, Element*);
RefPtr<StylePropertySet> m_inlineStyleDecl;
RefPtr<StylePropertySet> m_attributeStyle;
SpaceSplitString m_classNames;
AtomicString m_idForStyleResolution;
AttributeVector m_attributes;
};
inline void ElementAttributeData::removeAttribute(const QualifiedName& name, Element* element)
{
size_t index = getAttributeItemIndex(name);
if (index == notFound)
return;
removeAttribute(index, element);
}
inline PassRefPtr<Attr> ElementAttributeData::getAttributeNode(const String& name, bool shouldIgnoreAttributeCase, Element* element) const
{
ASSERT(element);
Attribute* attribute = getAttributeItem(name, shouldIgnoreAttributeCase);
if (!attribute)
return 0;
return attribute->createAttrIfNeeded(element);
}
inline PassRefPtr<Attr> ElementAttributeData::getAttributeNode(const QualifiedName& name, Element* element) const
{
ASSERT(element);
Attribute* attribute = getAttributeItem(name);
if (!attribute)
return 0;
return attribute->createAttrIfNeeded(element);
}
inline Attribute* ElementAttributeData::getAttributeItem(const String& name, bool shouldIgnoreAttributeCase) const
{
size_t index = getAttributeItemIndex(name, shouldIgnoreAttributeCase);
if (index != notFound)
return m_attributes[index].get();
return 0;
}
// We use a boolean parameter instead of calling shouldIgnoreAttributeCase so that the caller
// can tune the behavior (hasAttribute is case sensitive whereas getAttribute is not).
inline size_t ElementAttributeData::getAttributeItemIndex(const String& name, bool shouldIgnoreAttributeCase) const
{
unsigned len = length();
bool doSlowCheck = shouldIgnoreAttributeCase;
// Optimize for the case where the attribute exists and its name exactly matches.
for (unsigned i = 0; i < len; ++i) {
const QualifiedName& attrName = m_attributes[i]->name();
if (!attrName.hasPrefix()) {
if (name == attrName.localName())
return i;
} else
doSlowCheck = true;
}
if (doSlowCheck)
return getAttributeItemIndexSlowCase(name, shouldIgnoreAttributeCase);
return notFound;
}
}
#endif // ElementAttributeData_h
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