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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:41 -0800
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-03 18:28:41 -0800
commit648161bb0edfc3d43db63caed5cc5213bc6cb78f (patch)
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parenta65af38181ac7d34544586bdb5cd004de93897ad (diff)
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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);
-
- 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
-
- bool contains(const Node*) const;
-
- 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 these
- virtual void documentWillBecomeInactive() { }
- virtual void documentDidBecomeActive() { }
-
- 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;
-
- // These two bits are really used by the StyledElement subclass, but they are pulled up here in order to be shared with other
- // Element bits.
- mutable bool m_isStyleAttributeValid : 1;
- mutable bool m_synchronizingStyleAttribute : 1;
-
-#if ENABLE(SVG)
- // These bit is are used by SVGElement subclasses, and it lives here for the same reason as above.
- mutable bool m_areSVGAttributesValid : 1;
- mutable bool m_synchronizingSVGAttributes : 1;
-#endif
-
-private:
- bool m_parsingChildrenFinished : 1;
-};
-
-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;
-}
-
-} //namespace
-
-#endif