external/webkit r30707

1 files changed, 960 insertions, 0 deletions

diff --git a/WebCore/dom/Document.h b/WebCore/dom/Document.h
new file mode 100644
index 0000000..14277ea
--- /dev/null
+++ b/WebCore/dom/Document.h
@@ -0,0 +1,960 @@
+/*
+ * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
+ *           (C) 1999 Antti Koivisto (koivisto@kde.org)
+ *           (C) 2001 Dirk Mueller (mueller@kde.org)
+ *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
+ * Copyright (C) 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 Document_h
+#define Document_h
+
+#include "Attr.h"
+#include "Color.h"
+#include "DeprecatedPtrList.h"
+#include "DeprecatedValueList.h"
+#include "DocumentMarker.h"
+#include "HTMLCollection.h"
+#include "HTMLFormElement.h"
+#include "KURL.h"
+#include "StringHash.h"
+#include "Timer.h"
+#include <wtf/HashCountedSet.h>
+#include <wtf/ListHashSet.h>
+
+// FIXME: We should move Mac off of the old Frame-based user stylesheet loading
+// code and onto the new code in Page. We can't do that until the code in Page
+// supports non-file: URLs, however.
+#if PLATFORM(MAC)
+#define FRAME_LOADS_USER_STYLESHEET 1
+#else
+#define FRAME_LOADS_USER_STYLESHEET 0
+#endif
+
+namespace WebCore {
+
+    class AXObjectCache;
+    class Attr;
+    class Attribute;
+    class CDATASection;
+    class CachedCSSStyleSheet;
+    class CSSStyleDeclaration;
+    class CSSStyleSelector;
+    class CSSStyleSheet;
+    class Comment;
+    class Database;
+    class DOMImplementation;
+    class DOMSelection;
+    class DOMWindow;
+    class DatabaseThread;
+    class DocLoader;
+    class DocumentFragment;
+    class DocumentType;
+    class EditingText;
+    class Element;
+    class EntityReference;
+    class Event;
+    class EventListener;
+    class Frame;
+    class FrameView;
+    class HTMLDocument;
+    class HTMLElement;
+    class HTMLFormControlElementWithState;
+    class HTMLFormElement;
+    class HTMLHeadElement;
+    class HTMLImageLoader;
+    class HTMLInputElement;
+    class HTMLMapElement;
+    class IntPoint;
+    class MouseEventWithHitTestResults;
+    class NameNodeList;
+    class NodeFilter;
+    class NodeIterator;
+    class NodeList;
+    class Page;
+    class PlatformMouseEvent;
+    class ProcessingInstruction;
+    class Range;
+    class RegisteredEventListener;
+    class RenderArena;
+    class SecurityOrigin;
+    class Settings;
+    class StyleSheet;
+    class StyleSheetList;
+    class Text;
+    class TextResourceDecoder;
+    class Tokenizer;
+    class TreeWalker;
+#if ENABLE(XBL)
+    class XBLBindingManager;
+#endif
+#if ENABLE(XPATH)
+    class XPathEvaluator;
+    class XPathExpression;
+    class XPathNSResolver;
+    class XPathResult;
+#endif
+    
+    struct DashboardRegionValue;
+    struct HitTestRequest;
+
+#if ENABLE(SVG)
+    class SVGDocumentExtensions;
+#endif
+
+    typedef int ExceptionCode;
+
+class FormElementKey {
+public:
+    FormElementKey(AtomicStringImpl* = 0, AtomicStringImpl* = 0);
+    ~FormElementKey();
+    FormElementKey(const FormElementKey&);
+    FormElementKey& operator=(const FormElementKey&);
+    AtomicStringImpl* name() const { return m_name; }
+    AtomicStringImpl* type() const { return m_type; }
+private:
+    void ref() const;
+    void deref() const;
+    AtomicStringImpl* m_name;
+    AtomicStringImpl* m_type;
+};
+
+inline bool operator==(const FormElementKey& a, const FormElementKey& b)
+    { return a.name() == b.name() && a.type() == b.type(); }
+
+struct FormElementKeyHash {
+    static unsigned hash(const FormElementKey&);
+    static bool equal(const FormElementKey& a, const FormElementKey& b) { return a == b; }
+    static const bool safeToCompareToEmptyOrDeleted = true;
+};
+
+struct FormElementKeyHashTraits : WTF::GenericHashTraits<FormElementKey> {
+    static FormElementKey deletedValue();
+};
+
+class Document : public ContainerNode {
+public:
+    Document(DOMImplementation*, Frame*, bool isXHTML = false);
+    virtual ~Document();
+
+    virtual void removedLastRef();
+
+    // Nodes belonging to this document hold "self-only" references -
+    // these are enough to keep the document from being destroyed, but
+    // not enough to keep it from removing its children. This allows a
+    // node that outlives its document to still have a valid document
+    // pointer without introducing reference cycles
+
+    void selfOnlyRef()
+    {
+        ASSERT(!m_deletionHasBegun);
+        ++m_selfOnlyRefCount;
+    }
+    void selfOnlyDeref()
+    {
+        ASSERT(!m_deletionHasBegun);
+        --m_selfOnlyRefCount;
+        if (!m_selfOnlyRefCount && !refCount()) {
+#ifndef NDEBUG
+            m_deletionHasBegun = true;
+#endif
+            delete this;
+        }
+    }
+
+    // DOM methods & attributes for Document
+
+    DocumentType* doctype() const { return m_docType.get(); }
+
+    DOMImplementation* implementation() const;
+    virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
+    Element* documentElement() const;
+    virtual PassRefPtr<Element> createElement(const String& tagName, ExceptionCode&);
+    PassRefPtr<DocumentFragment> createDocumentFragment ();
+    PassRefPtr<Text> createTextNode(const String& data);
+    PassRefPtr<Comment> createComment(const String& data);
+    PassRefPtr<CDATASection> createCDATASection(const String& data, ExceptionCode&);
+    PassRefPtr<ProcessingInstruction> createProcessingInstruction(const String& target, const String& data, ExceptionCode&);
+    PassRefPtr<Attr> createAttribute(const String& name, ExceptionCode& ec) { return createAttributeNS(String(), name, ec); }
+    PassRefPtr<Attr> createAttributeNS(const String& namespaceURI, const String& qualifiedName, ExceptionCode&);
+    PassRefPtr<EntityReference> createEntityReference(const String& name, ExceptionCode&);
+    PassRefPtr<Node> importNode(Node* importedNode, bool deep, ExceptionCode&);
+    virtual PassRefPtr<Element> createElementNS(const String& namespaceURI, const String& qualifiedName, ExceptionCode&);
+    PassRefPtr<Element> createElement(const QualifiedName&, bool createdByParser, ExceptionCode& ec);
+    Element* getElementById(const AtomicString&) const;
+
+    Element* elementFromPoint(int x, int y) const;
+    String readyState() const;
+    String inputEncoding() const;
+    String defaultCharset() const;
+
+    String charset() const { return inputEncoding(); }
+    String characterSet() const { return inputEncoding(); }
+
+    void setCharset(const String&);
+
+    String contentLanguage() const { return m_contentLanguage; }
+    void setContentLanguage(const String& lang) { m_contentLanguage = lang; }
+
+    String xmlEncoding() const { return m_xmlEncoding; }
+    String xmlVersion() const { return m_xmlVersion; }
+    bool xmlStandalone() const { return m_xmlStandalone; }
+
+    void setXMLEncoding(const String& encoding) { m_xmlEncoding = encoding; } // read-only property, only to be set from XMLTokenizer
+    void setXMLVersion(const String&, ExceptionCode&);
+    void setXMLStandalone(bool, ExceptionCode&);
+
+    KURL documentURI() const;
+    void setDocumentURI(const String&);
+
+    virtual KURL baseURI() const;
+
+    PassRefPtr<Node> adoptNode(PassRefPtr<Node> source, ExceptionCode&);
+
+    PassRefPtr<HTMLCollection> images();
+    PassRefPtr<HTMLCollection> embeds();
+    PassRefPtr<HTMLCollection> plugins(); // an alias for embeds() required for the JS DOM bindings.
+    PassRefPtr<HTMLCollection> applets();
+    PassRefPtr<HTMLCollection> links();
+    PassRefPtr<HTMLCollection> forms();
+    PassRefPtr<HTMLCollection> anchors();
+    PassRefPtr<HTMLCollection> all();
+    PassRefPtr<HTMLCollection> objects();
+    PassRefPtr<HTMLCollection> scripts();
+    PassRefPtr<HTMLCollection> windowNamedItems(const String& name);
+    PassRefPtr<HTMLCollection> documentNamedItems(const String& name);
+
+    HTMLCollection::CollectionInfo* collectionInfo(HTMLCollection::Type type)
+    {
+        ASSERT(type >= HTMLCollection::FirstUnnamedDocumentCachedType);
+        unsigned index = type - HTMLCollection::FirstUnnamedDocumentCachedType;
+        ASSERT(index < HTMLCollection::NumUnnamedDocumentCachedTypes);
+        return &m_collectionInfo[index]; 
+    }
+
+    HTMLCollection::CollectionInfo* nameCollectionInfo(HTMLCollection::Type, const AtomicString& name);
+
+    // DOM methods overridden from  parent classes
+
+    virtual String nodeName() const;
+    virtual NodeType nodeType() const;
+
+    // Other methods (not part of DOM)
+    virtual bool isDocumentNode() const { return true; }
+    virtual bool isHTMLDocument() const { return false; }
+    virtual bool isImageDocument() const { return false; }
+#if ENABLE(SVG)
+    virtual bool isSVGDocument() const { return false; }
+#endif
+    virtual bool isPluginDocument() const { return false; }
+    
+    CSSStyleSelector* styleSelector() const { return m_styleSelector; }
+
+    Element* getElementByAccessKey(const String& key) const;
+    
+    /**
+     * Updates the pending sheet count and then calls updateStyleSelector.
+     */
+    void removePendingSheet();
+
+    /**
+     * This method returns true if all top-level stylesheets have loaded (including
+     * any @imports that they may be loading).
+     */
+    bool haveStylesheetsLoaded() const
+    {
+        return m_pendingStylesheets <= 0 || m_ignorePendingStylesheets
+#if USE(LOW_BANDWIDTH_DISPLAY)
+            || m_inLowBandwidthDisplay
+#endif
+            ;
+    }
+
+    /**
+     * Increments the number of pending sheets.  The <link> elements
+     * invoke this to add themselves to the loading list.
+     */
+    void addPendingSheet() { m_pendingStylesheets++; }
+
+    bool gotoAnchorNeededAfterStylesheetsLoad() { return m_gotoAnchorNeededAfterStylesheetsLoad; }
+    void setGotoAnchorNeededAfterStylesheetsLoad(bool b) { m_gotoAnchorNeededAfterStylesheetsLoad = b; }
+
+    /**
+     * Called when one or more stylesheets in the document may have been added, removed or changed.
+     *
+     * Creates a new style selector and assign it to this document. This is done by iterating through all nodes in
+     * document (or those before <BODY> in a HTML document), searching for stylesheets. Stylesheets can be contained in
+     * <LINK>, <STYLE> or <BODY> elements, as well as processing instructions (XML documents only). A list is
+     * constructed from these which is used to create the a new style selector which collates all of the stylesheets
+     * found and is used to calculate the derived styles for all rendering objects.
+     */
+    void updateStyleSelector();
+
+    void recalcStyleSelector();
+
+    bool usesDescendantRules() const { return m_usesDescendantRules; }
+    void setUsesDescendantRules(bool b) { m_usesDescendantRules = b; }
+    bool usesSiblingRules() const { return m_usesSiblingRules; }
+    void setUsesSiblingRules(bool b) { m_usesSiblingRules = b; }
+    bool usesFirstLineRules() const { return m_usesFirstLineRules; }
+    void setUsesFirstLineRules(bool b) { m_usesFirstLineRules = b; }
+    bool usesFirstLetterRules() const { return m_usesFirstLetterRules; }
+    void setUsesFirstLetterRules(bool b) { m_usesFirstLetterRules = b; }
+
+    // Machinery for saving and restoring state when you leave and then go back to a page.
+    void registerFormElementWithState(HTMLFormControlElementWithState* e) { m_formElementsWithState.add(e); }
+    void unregisterFormElementWithState(HTMLFormControlElementWithState* e) { m_formElementsWithState.remove(e); }
+    Vector<String> formElementsState() const;
+    void setStateForNewFormElements(const Vector<String>&);
+    bool hasStateForNewFormElements() const;
+    bool takeStateForFormElement(AtomicStringImpl* name, AtomicStringImpl* type, String& state);
+
+    FrameView* view() const; // can be NULL
+    Frame* frame() const { return m_frame; } // can be NULL
+    Page* page() const; // can be NULL
+    Settings* settings() const; // can be NULL
+
+    PassRefPtr<Range> createRange();
+
+    PassRefPtr<NodeIterator> createNodeIterator(Node* root, unsigned whatToShow,
+        PassRefPtr<NodeFilter>, bool expandEntityReferences, ExceptionCode&);
+
+    PassRefPtr<TreeWalker> createTreeWalker(Node* root, unsigned whatToShow, 
+        PassRefPtr<NodeFilter>, bool expandEntityReferences, ExceptionCode&);
+
+    // Special support for editing
+    PassRefPtr<CSSStyleDeclaration> createCSSStyleDeclaration();
+    PassRefPtr<EditingText> createEditingTextNode(const String&);
+
+    virtual void recalcStyle( StyleChange = NoChange );
+    static DeprecatedPtrList<Document>* changedDocuments;
+    virtual void updateRendering();
+    void updateLayout();
+    void updateLayoutIgnorePendingStylesheets();
+    static void updateDocumentsRendering();
+    DocLoader* docLoader() { return m_docLoader; }
+
+    virtual void attach();
+    virtual void detach();
+
+    RenderArena* renderArena() { return m_renderArena; }
+
+    AXObjectCache* axObjectCache() const;
+    
+    // to get visually ordered hebrew and arabic pages right
+    void setVisuallyOrdered();
+
+    void open();
+    void implicitOpen();
+    void close();
+    void implicitClose();
+    void cancelParsing();
+
+    void write(const String& text);
+    void writeln(const String& text);
+    void finishParsing();
+    void clear();
+
+    bool wellFormed() const { return m_wellFormed; }
+
+    const KURL& url() const { return m_url.isEmpty() ? blankURL() : m_url; }
+    void setURL(const KURL&);
+
+    const KURL& baseURL() const { return m_baseURL.isEmpty() ? url() : m_baseURL; }
+    void setBaseURL(const KURL&);
+
+    const String& baseTarget() const { return m_baseTarget; }
+    void setBaseTarget(const String& baseTarget) { m_baseTarget = baseTarget; }
+
+    KURL completeURL(const String&);
+
+    // from cachedObjectClient
+    virtual void setCSSStyleSheet(const String& url, const String& charset, const CachedCSSStyleSheet*);
+
+#if FRAME_LOADS_USER_STYLESHEET
+    void setUserStyleSheet(const String& sheet);
+#endif
+
+    String userStyleSheet() const;
+
+    CSSStyleSheet* elementSheet();
+    CSSStyleSheet* mappedElementSheet();
+    virtual Tokenizer* createTokenizer();
+    Tokenizer* tokenizer() { return m_tokenizer; }
+    
+    bool printing() const { return m_printing; }
+    void setPrinting(bool p) { m_printing = p; }
+
+    enum ParseMode { Compat, AlmostStrict, Strict };
+
+private:
+    virtual void determineParseMode() {}
+    
+public:
+    void setParseMode(ParseMode m) { m_parseMode = m; }
+    ParseMode parseMode() const { return m_parseMode; }
+
+    bool inCompatMode() const { return m_parseMode == Compat; }
+    bool inAlmostStrictMode() const { return m_parseMode == AlmostStrict; }
+    bool inStrictMode() const { return m_parseMode == Strict; }
+    
+    void setParsing(bool);
+    bool parsing() const { return m_bParsing; }
+    int minimumLayoutDelay();
+    bool shouldScheduleLayout();
+    int elapsedTime() const;
+    
+    void setTextColor(const Color& color) { m_textColor = color; }
+    Color textColor() const { return m_textColor; }
+
+    const Color& linkColor() const { return m_linkColor; }
+    const Color& visitedLinkColor() const { return m_visitedLinkColor; }
+    const Color& activeLinkColor() const { return m_activeLinkColor; }
+    void setLinkColor(const Color& c) { m_linkColor = c; }
+    void setVisitedLinkColor(const Color& c) { m_visitedLinkColor = c; }
+    void setActiveLinkColor(const Color& c) { m_activeLinkColor = c; }
+    void resetLinkColor();
+    void resetVisitedLinkColor();
+    void resetActiveLinkColor();
+    
+    MouseEventWithHitTestResults prepareMouseEvent(const HitTestRequest&, const IntPoint&, const PlatformMouseEvent&);
+
+    virtual bool childTypeAllowed(NodeType);
+    virtual PassRefPtr<Node> cloneNode(bool deep);
+
+    virtual bool canReplaceChild(Node* newChild, Node* oldChild);
+    
+    StyleSheetList* styleSheets();
+
+    /* Newly proposed CSS3 mechanism for selecting alternate
+       stylesheets using the DOM. May be subject to change as
+       spec matures. - dwh
+    */
+    String preferredStylesheetSet() const;
+    String selectedStylesheetSet() const;
+    void setSelectedStylesheetSet(const String&);
+
+    bool setFocusedNode(PassRefPtr<Node>);
+    Node* focusedNode() const { return m_focusedNode.get(); }
+
+    void setHoverNode(PassRefPtr<Node>);
+    Node* hoverNode() const { return m_hoverNode.get(); }
+
+    void setActiveNode(PassRefPtr<Node>);
+    Node* activeNode() const { return m_activeNode.get(); }
+
+    void focusedNodeRemoved();
+    void removeFocusedNodeOfSubtree(Node*, bool amongChildrenOnly = false);
+    void hoveredNodeDetached(Node*);
+    void activeChainNodeDetached(Node*);
+
+    // Updates for :target (CSS3 selector).
+    void setCSSTarget(Node*);
+    Node* getCSSTarget() const;
+    
+    void setDocumentChanged(bool);
+
+    void attachNodeIterator(NodeIterator*);
+    void detachNodeIterator(NodeIterator*);
+    void notifyBeforeNodeRemoval(Node*);
+    DOMWindow* defaultView() const;
+    PassRefPtr<Event> createEvent(const String& eventType, ExceptionCode&);
+
+    // keep track of what types of event listeners are registered, so we don't
+    // dispatch events unnecessarily
+    enum ListenerType {
+        DOMSUBTREEMODIFIED_LISTENER          = 0x01,
+        DOMNODEINSERTED_LISTENER             = 0x02,
+        DOMNODEREMOVED_LISTENER              = 0x04,
+        DOMNODEREMOVEDFROMDOCUMENT_LISTENER  = 0x08,
+        DOMNODEINSERTEDINTODOCUMENT_LISTENER = 0x10,
+        DOMATTRMODIFIED_LISTENER             = 0x20,
+        DOMCHARACTERDATAMODIFIED_LISTENER    = 0x40,
+        OVERFLOWCHANGED_LISTENER             = 0x80
+    };
+
+    bool hasListenerType(ListenerType listenerType) const { return (m_listenerTypes & listenerType); }
+    void addListenerType(ListenerType listenerType) { m_listenerTypes = m_listenerTypes | listenerType; }
+
+    CSSStyleDeclaration* getOverrideStyle(Element*, const String& pseudoElt);
+
+    void handleWindowEvent(Event*, bool useCapture);
+    void setHTMLWindowEventListener(const AtomicString &eventType, PassRefPtr<EventListener>);
+    EventListener* getHTMLWindowEventListener(const AtomicString &eventType);
+    void removeHTMLWindowEventListener(const AtomicString &eventType);
+
+    void setHTMLWindowEventListener(const AtomicString& eventType, Attribute*);
+
+    void addWindowEventListener(const AtomicString& eventType, PassRefPtr<EventListener>, bool useCapture);
+    void removeWindowEventListener(const AtomicString& eventType, EventListener*, bool useCapture);
+    bool hasWindowEventListener(const AtomicString& eventType);
+
+    PassRefPtr<EventListener> createHTMLEventListener(const String& functionName, const String& code, Node*);
+    
+    /**
+     * Searches through the document, starting from fromNode, for the next selectable element that comes after fromNode.
+     * The order followed is as specified in section 17.11.1 of the HTML4 spec, which is elements with tab indexes
+     * first (from lowest to highest), and then elements without tab indexes (in document order).
+     *
+     * @param fromNode The node from which to start searching. The node after this will be focused. May be null.
+     *
+     * @return The focus node that comes after fromNode
+     *
+     * See http://www.w3.org/TR/html4/interact/forms.html#h-17.11.1
+     */
+    Node* nextFocusableNode(Node* start, KeyboardEvent*);
+
+    /**
+     * Searches through the document, starting from fromNode, for the previous selectable element (that comes _before_)
+     * fromNode. The order followed is as specified in section 17.11.1 of the HTML4 spec, which is elements with tab
+     * indexes first (from lowest to highest), and then elements without tab indexes (in document order).
+     *
+     * @param fromNode The node from which to start searching. The node before this will be focused. May be null.
+     *
+     * @return The focus node that comes before fromNode
+     *
+     * See http://www.w3.org/TR/html4/interact/forms.html#h-17.11.1
+     */
+    Node* previousFocusableNode(Node* start, KeyboardEvent*);
+
+    int nodeAbsIndex(Node*);
+    Node* nodeWithAbsIndex(int absIndex);
+
+    /**
+     * Handles a HTTP header equivalent set by a meta tag using <meta http-equiv="..." content="...">. This is called
+     * when a meta tag is encountered during document parsing, and also when a script dynamically changes or adds a meta
+     * tag. This enables scripts to use meta tags to perform refreshes and set expiry dates in addition to them being
+     * specified in a HTML file.
+     *
+     * @param equiv The http header name (value of the meta tag's "equiv" attribute)
+     * @param content The header value (value of the meta tag's "content" attribute)
+     */
+    void processHttpEquiv(const String& equiv, const String& content);
+    
+    void dispatchImageLoadEventSoon(HTMLImageLoader*);
+    void dispatchImageLoadEventsNow();
+    void removeImage(HTMLImageLoader*);
+    
+    // Returns the owning element in the parent document.
+    // Returns 0 if this is the top level document.
+    Element* ownerElement() const;
+
+    String title() const { return m_title; }
+    void setTitle(const String&, Element* titleElement = 0);
+    void removeTitle(Element* titleElement);
+
+    String cookie() const;
+    void setCookie(const String&);
+
+    String referrer() const;
+
+    String domain() const;
+    void setDomain(const String& newDomain);
+
+    String lastModified() const;
+
+    const KURL& policyBaseURL() const { return m_policyBaseURL; }
+    void setPolicyBaseURL(const KURL& url) { m_policyBaseURL = url; }
+    
+    // The following implements the rule from HTML 4 for what valid names are.
+    // To get this right for all the XML cases, we probably have to improve this or move it
+    // and make it sensitive to the type of document.
+    static bool isValidName(const String&);
+
+    // The following breaks a qualified name into a prefix and a local name.
+    // It also does a validity check, and returns false if the qualified name is invalid
+    // (empty string or invalid characters).
+    static bool parseQualifiedName(const String& qualifiedName, String& prefix, String& localName);
+    
+    void addElementById(const AtomicString& elementId, Element *element);
+    void removeElementById(const AtomicString& elementId, Element *element);
+
+    void addImageMap(HTMLMapElement*);
+    void removeImageMap(HTMLMapElement*);
+    HTMLMapElement* getImageMap(const String& url) const;
+
+    HTMLElement* body();
+    void setBody(PassRefPtr<HTMLElement>, ExceptionCode&);
+
+    HTMLHeadElement* head();
+
+    String toString() const;
+    
+    bool execCommand(const String& command, bool userInterface = false, const String& value = String());
+    bool queryCommandEnabled(const String& command);
+    bool queryCommandIndeterm(const String& command);
+    bool queryCommandState(const String& command);
+    bool queryCommandSupported(const String& command);
+    String queryCommandValue(const String& command);
+    
+    void addMarker(Range*, DocumentMarker::MarkerType, String description = String());
+    void addMarker(Node*, DocumentMarker);
+    void copyMarkers(Node *srcNode, unsigned startOffset, int length, Node *dstNode, int delta, DocumentMarker::MarkerType = DocumentMarker::AllMarkers);
+    void removeMarkers(Range*, DocumentMarker::MarkerType = DocumentMarker::AllMarkers);
+    void removeMarkers(Node*, unsigned startOffset, int length, DocumentMarker::MarkerType = DocumentMarker::AllMarkers);
+    void removeMarkers(DocumentMarker::MarkerType = DocumentMarker::AllMarkers);
+    void removeMarkers(Node*);
+    void repaintMarkers(DocumentMarker::MarkerType = DocumentMarker::AllMarkers);
+    void setRenderedRectForMarker(Node*, DocumentMarker, const IntRect&);
+    void invalidateRenderedRectsForMarkersInRect(const IntRect&);
+    void shiftMarkers(Node*, unsigned startOffset, int delta, DocumentMarker::MarkerType = DocumentMarker::AllMarkers);
+
+    DocumentMarker* markerContainingPoint(const IntPoint&, DocumentMarker::MarkerType = DocumentMarker::AllMarkers);
+    Vector<DocumentMarker> markersForNode(Node*);
+    Vector<IntRect> renderedRectsForMarkers(DocumentMarker::MarkerType = DocumentMarker::AllMarkers);
+    
+    // designMode support
+    enum InheritedBool { off = false, on = true, inherit };    
+    void setDesignMode(InheritedBool value);
+    InheritedBool getDesignMode() const;
+    bool inDesignMode() const;
+
+    Document* parentDocument() const;
+    Document* topDocument() const;
+
+    int docID() const { return m_docID; }
+
+#if ENABLE(XSLT)
+    void applyXSLTransform(ProcessingInstruction* pi);
+    void setTransformSource(void* doc);
+    const void* transformSource() { return m_transformSource; }
+    PassRefPtr<Document> transformSourceDocument() { return m_transformSourceDocument; }
+    void setTransformSourceDocument(Document* doc) { m_transformSourceDocument = doc; }
+#endif
+
+#if ENABLE(XBL)
+    // XBL methods
+    XBLBindingManager* bindingManager() const { return m_bindingManager; }
+#endif
+
+    void incDOMTreeVersion() { ++m_domtree_version; }
+    unsigned domTreeVersion() const { return m_domtree_version; }
+
+    void setDocType(PassRefPtr<DocumentType>);
+
+    void finishedParsing();
+
+#if ENABLE(XPATH)
+    // XPathEvaluator methods
+    PassRefPtr<XPathExpression> createExpression(const String& expression,
+                                                 XPathNSResolver* resolver,
+                                                 ExceptionCode& ec);
+    PassRefPtr<XPathNSResolver> createNSResolver(Node *nodeResolver);
+    PassRefPtr<XPathResult> evaluate(const String& expression,
+                                     Node* contextNode,
+                                     XPathNSResolver* resolver,
+                                     unsigned short type,
+                                     XPathResult* result,
+                                     ExceptionCode& ec);
+#endif // ENABLE(XPATH)
+    
+    enum PendingSheetLayout { NoLayoutWithPendingSheets, DidLayoutWithPendingSheets, IgnoreLayoutWithPendingSheets };
+
+    bool didLayoutWithPendingStylesheets() const { return m_pendingSheetLayout == DidLayoutWithPendingSheets; }
+    
+    void setHasNodesWithPlaceholderStyle() { m_hasNodesWithPlaceholderStyle = true; }
+
+    String iconURL();
+    void setIconURL(const String& iconURL, const String& type);
+
+    bool isAllowedToLoadLocalResources() const { return m_isAllowedToLoadLocalResources; }
+
+    void setUseSecureKeyboardEntryWhenActive(bool);
+    bool useSecureKeyboardEntryWhenActive() const;
+    
+#if USE(LOW_BANDWIDTH_DISPLAY)
+    void setDocLoader(DocLoader* loader) { m_docLoader = loader; }
+    bool inLowBandwidthDisplay() const { return m_inLowBandwidthDisplay; }
+    void setLowBandwidthDisplay(bool lowBandWidth) { m_inLowBandwidthDisplay = lowBandWidth; }
+#endif
+    
+    void addNodeList() { m_numNodeLists++; }
+    void removeNodeList() { m_numNodeLists--; }
+    bool hasNodeLists() const { return m_numNodeLists != 0; }
+
+    void updateFocusAppearanceSoon();
+    void cancelFocusAppearanceUpdate();
+    
+    // FF method for accessing the selection added for compatability.
+    DOMSelection* getSelection() const;
+    
+private:
+    CSSStyleSelector* m_styleSelector;
+    bool m_didCalculateStyleSelector;
+
+    Frame* m_frame;
+    DocLoader* m_docLoader;
+    Tokenizer* m_tokenizer;
+    bool m_wellFormed;
+    KURL m_url;
+    KURL m_baseURL;
+    String m_baseTarget;
+
+    RefPtr<DocumentType> m_docType;
+    RefPtr<DOMImplementation> m_implementation;
+
+    RefPtr<StyleSheet> m_sheet;
+#if FRAME_LOADS_USER_STYLESHEET
+    String m_usersheet;
+#endif
+
+    // Track the number of currently loading top-level stylesheets.  Sheets
+    // loaded using the @import directive are not included in this count.
+    // We use this count of pending sheets to detect when we can begin attaching
+    // elements.
+    int m_pendingStylesheets;
+
+    // But sometimes you need to ignore pending stylesheet count to
+    // force an immediate layout when requested by JS.
+    bool m_ignorePendingStylesheets;
+
+    // If we do ignore the pending stylesheet count, then we need to add a boolean
+    // to track that this happened so that we can do a full repaint when the stylesheets
+    // do eventually load.
+    PendingSheetLayout m_pendingSheetLayout;
+    
+    bool m_hasNodesWithPlaceholderStyle;
+
+    RefPtr<CSSStyleSheet> m_elemSheet;
+    RefPtr<CSSStyleSheet> m_mappedElementSheet;
+
+    bool m_printing;
+
+    ParseMode m_parseMode;
+
+    Color m_textColor;
+
+    RefPtr<Node> m_focusedNode;
+    RefPtr<Node> m_hoverNode;
+    RefPtr<Node> m_activeNode;
+    mutable RefPtr<Element> m_documentElement;
+
+    unsigned m_domtree_version;
+    
+    HashSet<NodeIterator*> m_nodeIterators;
+
+    unsigned short m_listenerTypes;
+    RefPtr<StyleSheetList> m_styleSheets;
+    
+    RegisteredEventListenerList m_windowEventListeners;
+
+    typedef HashMap<FormElementKey, Vector<String>, FormElementKeyHash, FormElementKeyHashTraits> FormElementStateMap;
+    ListHashSet<HTMLFormControlElementWithState*> m_formElementsWithState;
+    FormElementStateMap m_stateForNewFormElements;
+    
+    Color m_linkColor;
+    Color m_visitedLinkColor;
+    Color m_activeLinkColor;
+
+    String m_preferredStylesheetSet;
+    String m_selectedStylesheetSet;
+
+    bool m_loadingSheet;
+    bool visuallyOrdered;
+    bool m_bParsing;
+    bool m_docChanged;
+    bool m_inStyleRecalc;
+    bool m_closeAfterStyleRecalc;
+    bool m_usesDescendantRules;
+    bool m_usesSiblingRules;
+    bool m_usesFirstLineRules;
+    bool m_usesFirstLetterRules;
+    bool m_gotoAnchorNeededAfterStylesheetsLoad;
+
+    String m_title;
+    bool m_titleSetExplicitly;
+    RefPtr<Element> m_titleElement;
+    
+    RenderArena* m_renderArena;
+
+    typedef std::pair<Vector<DocumentMarker>, Vector<IntRect> > MarkerMapVectorPair;
+    typedef HashMap<RefPtr<Node>, MarkerMapVectorPair*> MarkerMap;
+    MarkerMap m_markers;
+
+    mutable AXObjectCache* m_axObjectCache;
+    
+    DeprecatedPtrList<HTMLImageLoader> m_imageLoadEventDispatchSoonList;
+    DeprecatedPtrList<HTMLImageLoader> m_imageLoadEventDispatchingList;
+    Timer<Document> m_imageLoadEventTimer;
+
+    Timer<Document> m_updateFocusAppearanceTimer;
+
+    Node* m_cssTarget;
+    
+    bool m_processingLoadEvent;
+    double m_startTime;
+    bool m_overMinimumLayoutThreshold;
+    
+#if ENABLE(XSLT)
+    void* m_transformSource;
+    RefPtr<Document> m_transformSourceDocument;
+#endif
+
+#if ENABLE(XBL)
+    XBLBindingManager* m_bindingManager; // The access point through which documents and elements communicate with XBL.
+#endif
+    
+    typedef HashMap<AtomicStringImpl*, HTMLMapElement*> ImageMapsByName;
+    ImageMapsByName m_imageMapsByName;
+
+    KURL m_policyBaseURL;
+
+    HashSet<Node*> m_disconnectedNodesWithEventListeners;
+
+    int m_docID; // A unique document identifier used for things like document-specific mapped attributes.
+
+    String m_xmlEncoding;
+    String m_xmlVersion;
+    bool m_xmlStandalone;
+
+    String m_contentLanguage;
+
+public:
+    bool inPageCache();
+    void setInPageCache(bool flag);
+    
+    // Elements can register themselves for the "willSaveToCache()" and  
+    // "didRestoreFromCache()" callbacks
+    void registerForCacheCallbacks(Element*);
+    void unregisterForCacheCallbacks(Element*);
+    void willSaveToCache();
+    void didRestoreFromCache();
+
+    void setShouldCreateRenderers(bool);
+    bool shouldCreateRenderers();
+    
+    void setDecoder(TextResourceDecoder*);
+    TextResourceDecoder* decoder() const { return m_decoder.get(); }
+
+    UChar backslashAsCurrencySymbol() const;
+
+    void setDashboardRegionsDirty(bool f) { m_dashboardRegionsDirty = f; }
+    bool dashboardRegionsDirty() const { return m_dashboardRegionsDirty; }
+    bool hasDashboardRegions () const { return m_hasDashboardRegions; }
+    void setHasDashboardRegions (bool f) { m_hasDashboardRegions = f; }
+    const Vector<DashboardRegionValue>& dashboardRegions() const;
+    void setDashboardRegions(const Vector<DashboardRegionValue>&);
+
+    void removeAllEventListenersFromAllNodes();
+
+    void registerDisconnectedNodeWithEventListeners(Node*);
+    void unregisterDisconnectedNodeWithEventListeners(Node*);
+    
+    HTMLFormElement::CheckedRadioButtons& checkedRadioButtons() { return m_checkedRadioButtons; }
+    
+#if ENABLE(SVG)
+    const SVGDocumentExtensions* svgExtensions();
+    SVGDocumentExtensions* accessSVGExtensions();
+#endif
+
+    void initSecurityOrigin();
+    SecurityOrigin* securityOrigin() const { return m_securityOrigin.get(); }
+
+    // Explicitly override the security origin for this document.
+    // Note: It is dangerous to change the security origin of a document
+    //       that already contains content.
+    void setSecurityOrigin(SecurityOrigin*);
+
+    bool processingLoadEvent() const { return m_processingLoadEvent; }
+
+#if ENABLE(DATABASE)
+    void addOpenDatabase(Database*);
+    void removeOpenDatabase(Database*);
+    DatabaseThread* databaseThread();   // Creates the thread as needed, but not if it has been already terminated.
+    void setHasOpenDatabases() { m_hasOpenDatabases = true; }
+    bool hasOpenDatabases() { return m_hasOpenDatabases; }
+    void stopDatabases();
+#endif
+protected:
+    void clearXMLVersion() { m_xmlVersion = String(); }
+
+private:
+    bool shouldBeAllowedToLoadLocalResources() const;
+
+    void updateTitle();
+    void removeAllDisconnectedNodeEventListeners();
+    void imageLoadEventTimerFired(Timer<Document>*);
+    void updateFocusAppearanceTimerFired(Timer<Document>*);
+
+    RefPtr<SecurityOrigin> m_securityOrigin;
+
+    RenderObject* m_savedRenderer;
+    int m_secureForms;
+    
+    RefPtr<TextResourceDecoder> m_decoder;
+
+    // We maintain the invariant that m_duplicateIds is the count of all elements with a given ID
+    // excluding the one referenced in m_elementsById, if any. This means it one less than the total count
+    // when the first node with a given ID is cached, otherwise the same as the total count.
+    mutable HashMap<AtomicStringImpl*, Element*> m_elementsById;
+    mutable HashCountedSet<AtomicStringImpl*> m_duplicateIds;
+    
+    mutable HashMap<StringImpl*, Element*, CaseFoldingHash> m_elementsByAccessKey;
+    
+    InheritedBool m_designMode;
+    
+    int m_selfOnlyRefCount;
+
+    HTMLFormElement::CheckedRadioButtons m_checkedRadioButtons;
+
+    typedef HashMap<AtomicStringImpl*, HTMLCollection::CollectionInfo*> NamedCollectionMap;
+    HTMLCollection::CollectionInfo m_collectionInfo[HTMLCollection::NumUnnamedDocumentCachedTypes];
+    NamedCollectionMap m_nameCollectionInfo[HTMLCollection::NumNamedDocumentCachedTypes];
+
+#if ENABLE(XPATH)
+    RefPtr<XPathEvaluator> m_xpathEvaluator;
+#endif
+    
+#if ENABLE(SVG)
+    SVGDocumentExtensions* m_svgExtensions;
+#endif
+    
+    Vector<DashboardRegionValue> m_dashboardRegions;
+    bool m_hasDashboardRegions;
+    bool m_dashboardRegionsDirty;
+
+    mutable bool m_accessKeyMapValid;
+    bool m_createRenderers;
+    bool m_inPageCache;
+    String m_iconURL;
+    
+    HashSet<Element*> m_pageCacheCallbackElements;
+
+    bool m_isAllowedToLoadLocalResources;
+
+    bool m_useSecureKeyboardEntryWhenActive;
+
+    bool m_isXHTML;
+
+    unsigned m_numNodeLists;
+
+#if ENABLE(DATABASE)
+    RefPtr<DatabaseThread> m_databaseThread;
+    bool m_hasOpenDatabases;    // This never changes back to false, even as the database thread is closed.
+    typedef HashSet<Database*> DatabaseSet;
+    OwnPtr<DatabaseSet> m_openDatabaseSet;
+#endif
+#if USE(LOW_BANDWIDTH_DISPLAY)
+    bool m_inLowBandwidthDisplay;
+#endif
+};
+
+} // namespace WebCore
+
+#endif // Document_h