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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, 2007, 2008 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 Element_h
#define Element_h
#include "ContainerNode.h"
#include "QualifiedName.h"
#include "ScrollTypes.h"
namespace WebCore {
class Attr;
class Attribute;
class CSSStyleDeclaration;
class ElementRareData;
class IntSize;
class Element : public ContainerNode {
public:
Element(const QualifiedName&, Document*);
~Element();
const AtomicString& getIDAttribute() const;
bool hasAttribute(const QualifiedName&) const;
const AtomicString& getAttribute(const QualifiedName&) const;
void setAttribute(const QualifiedName&, const AtomicString& value, ExceptionCode&);
void removeAttribute(const QualifiedName&, ExceptionCode&);
bool hasAttributes() const;
bool hasAttribute(const String& name) const;
bool hasAttributeNS(const String& namespaceURI, const String& localName) const;
const AtomicString& getAttribute(const String& name) const;
const AtomicString& getAttributeNS(const String& namespaceURI, const String& localName) const;
void setAttribute(const AtomicString& name, const AtomicString& value, ExceptionCode&);
void setAttributeNS(const AtomicString& namespaceURI, const AtomicString& qualifiedName, const AtomicString& value, ExceptionCode&);
void scrollIntoView (bool alignToTop = true);
void scrollIntoViewIfNeeded(bool centerIfNeeded = true);
void scrollByUnits(int units, ScrollGranularity);
void scrollByLines(int lines);
void scrollByPages(int pages);
int offsetLeft();
int offsetTop();
int offsetWidth();
int offsetHeight();
Element* offsetParent();
int clientLeft();
int clientTop();
int clientWidth();
int clientHeight();
int scrollLeft();
int scrollTop();
void setScrollLeft(int);
void setScrollTop(int);
int scrollWidth();
int scrollHeight();
void removeAttribute(const String& name, ExceptionCode&);
void removeAttributeNS(const String& namespaceURI, const String& localName, ExceptionCode&);
PassRefPtr<Attr> getAttributeNode(const String& name);
PassRefPtr<Attr> getAttributeNodeNS(const String& namespaceURI, const String& localName);
PassRefPtr<Attr> setAttributeNode(Attr*, ExceptionCode&);
PassRefPtr<Attr> setAttributeNodeNS(Attr*, ExceptionCode&);
PassRefPtr<Attr> removeAttributeNode(Attr*, ExceptionCode&);
virtual CSSStyleDeclaration* style();
const QualifiedName& tagQName() const { return m_tagName; }
String tagName() const { return nodeName(); }
bool hasTagName(const QualifiedName& tagName) const { return m_tagName.matches(tagName); }
// A fast function for checking the local name against another atomic string.
bool hasLocalName(const AtomicString& other) const { return m_tagName.localName() == other; }
bool hasLocalName(const QualifiedName& other) const { return m_tagName.localName() == other.localName(); }
const AtomicString& localName() const { return m_tagName.localName(); }
const AtomicString& prefix() const { return m_tagName.prefix(); }
virtual void setPrefix(const AtomicString&, ExceptionCode&);
const AtomicString& namespaceURI() const { return m_tagName.namespaceURI(); }
virtual KURL baseURI() const;
// DOM methods overridden from parent classes
virtual NodeType nodeType() const;
virtual PassRefPtr<Node> cloneNode(bool deep);
virtual String nodeName() const;
virtual void insertedIntoDocument();
virtual void removedFromDocument();
virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
PassRefPtr<Element> cloneElement();
void normalizeAttributes();
virtual bool isInputTypeHidden() const { return false; }
virtual bool isPasswordField() const { return false; }
String nodeNamePreservingCase() const;
// convenience methods which ignore exceptions
void setAttribute(const QualifiedName&, const AtomicString& value);
void setBooleanAttribute(const QualifiedName& name, bool);
virtual NamedAttrMap* attributes() const;
NamedAttrMap* attributes(bool readonly) const;
// This method is called whenever an attribute is added, changed or removed.
virtual void attributeChanged(Attribute*, bool preserveDecls = false);
// not part of the DOM
void setAttributeMap(PassRefPtr<NamedAttrMap>);
virtual void copyNonAttributeProperties(const Element* /*source*/) { }
virtual void attach();
virtual void detach();
virtual RenderObject* createRenderer(RenderArena*, RenderStyle*);
virtual void recalcStyle(StyleChange = NoChange);
virtual RenderStyle* computedStyle();
virtual bool childTypeAllowed(NodeType);
virtual PassRefPtr<Attribute> createAttribute(const QualifiedName&, const AtomicString& value);
void dispatchAttrRemovalEvent(Attribute*);
void dispatchAttrAdditionEvent(Attribute*);
virtual void accessKeyAction(bool /*sendToAnyEvent*/) { }
virtual bool isURLAttribute(Attribute*) const;
virtual const QualifiedName& imageSourceAttributeName() const;
virtual String target() const { return String(); }
virtual void focus(bool restorePreviousSelection = true);
virtual void updateFocusAppearance(bool restorePreviousSelection);
void blur();
#ifndef NDEBUG
virtual void formatForDebugger(char* buffer, unsigned length) const;
#endif
String innerText() const;
String outerText() const;
virtual String title() const;
String openTagStartToString() const;
void updateId(const AtomicString& oldId, const AtomicString& newId);
IntSize minimumSizeForResizing() const;
void setMinimumSizeForResizing(const IntSize&);
// Use Document::registerForDocumentActivationCallbacks() to subscribe to these
virtual void documentWillBecomeInactive() { }
virtual void documentDidBecomeActive() { }
// Use Document::registerForMediaVolumeCallbacks() to subscribe to this
virtual void mediaVolumeDidChange() { }
bool isFinishedParsingChildren() const { return m_parsingChildrenFinished; }
virtual void finishParsingChildren();
virtual void beginParsingChildren() { m_parsingChildrenFinished = false; }
// ElementTraversal API
Element* firstElementChild() const;
Element* lastElementChild() const;
Element* previousElementSibling() const;
Element* nextElementSibling() const;
unsigned childElementCount() const;
private:
virtual void createAttributeMap() const;
virtual void updateStyleAttribute() const {}
#if ENABLE(SVG)
virtual void updateAnimatedSVGAttribute(const String&) const {}
#endif
void updateFocusAppearanceSoonAfterAttach();
void cancelFocusAppearanceUpdate();
virtual const AtomicString& virtualPrefix() const { return prefix(); }
virtual const AtomicString& virtualLocalName() const { return localName(); }
virtual const AtomicString& virtualNamespaceURI() const { return namespaceURI(); }
QualifiedName m_tagName;
virtual NodeRareData* createRareData();
protected:
ElementRareData* rareData() const;
ElementRareData* ensureRareData();
mutable RefPtr<NamedAttrMap> namedAttrMap;
};
inline bool Node::hasTagName(const QualifiedName& name) const
{
return isElementNode() && static_cast<const Element*>(this)->hasTagName(name);
}
inline bool Node::hasAttributes() const
{
return isElementNode() && static_cast<const Element*>(this)->hasAttributes();
}
inline NamedAttrMap* Node::attributes() const
{
return isElementNode() ? static_cast<const Element*>(this)->attributes() : 0;
}
inline Element* Node::parentElement() const
{
Node* parent = parentNode();
return parent && parent->isElementNode() ? static_cast<Element*>(parent) : 0;
}
} //namespace
#endif
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