dom_docimpl.h

konqueror3 embedded版本, KDE环境下的当家浏览器的嵌入式版本源码包.

    ParseMode parseMode() const { return pMode; }

    bool inCompatMode() const { return pMode == Compat; }
    bool inTransitionalMode() const { return pMode == Transitional; }
    bool inStrictMode() const { return pMode == Strict; }

    //void setHTMLMode( HTMLMode m ) { hMode = m; }
    HTMLMode htmlMode() const { return hMode; }

    void setParsing(bool b) { m_bParsing = b; }
    bool parsing() const { return m_bParsing; }

    void setTextColor( QColor color ) { m_textColor = color; }
    QColor textColor() const { return m_textColor; }

    void setDesignMode(bool b);
    bool designMode() const;

    // internal
    bool prepareMouseEvent( bool readonly, int x, int y, MouseEvent *ev );

    virtual bool childAllowed( NodeImpl *newChild );
    virtual bool childTypeAllowed( unsigned short nodeType );
    virtual NodeImpl *cloneNode ( bool deep );

    NodeImpl::Id getId( NodeImpl::IdType _type, DOMStringImpl* _nsURI, DOMStringImpl *_localName,
                        DOMStringImpl *_prefix, bool readonly, bool lookupHTML, int *pExceptioncode = 0);
    NodeImpl::Id getId( NodeImpl::IdType _type, DOMStringImpl *_nodeName, bool readonly, bool lookupHTML,
                                      int *pExceptioncode = 0);
    DOMString getName( NodeImpl::IdType _type, NodeImpl::Id _id ) const;

    StyleSheetListImpl* styleSheets() { return m_styleSheets; };

    DOMString preferredStylesheetSet() const { return m_preferredStylesheetSet; }
    DOMString selectedStylesheetSet() const;
    void setSelectedStylesheetSet(const DOMString&);
    void setPreferredStylesheetSet(const DOMString& s) { m_preferredStylesheetSet = s; }

    void addStyleSheet(StyleSheetImpl *, int *exceptioncode = 0);
    void removeStyleSheet(StyleSheetImpl *, int *exceptioncode = 0);

    QStringList availableStyleSheets() const { return m_availableSheets; }

    NodeImpl* hoverNode() const { return m_hoverNode; }
    void setHoverNode(NodeImpl *newHoverNode);
    NodeImpl *focusNode() const { return m_focusNode; }
    void setFocusNode(NodeImpl *newFocusNode);
    // Updates for :target (CSS3 selector).
    void setCSSTarget(NodeImpl* n);
    NodeImpl* getCSSTarget() { return m_cssTarget; }

    bool isDocumentChanged()	{ return m_docChanged; }
    virtual void setDocumentChanged(bool = true);
    void attachNodeIterator(NodeIteratorImpl *ni);
    void detachNodeIterator(NodeIteratorImpl *ni);
    void notifyBeforeNodeRemoval(NodeImpl *n);
    AbstractViewImpl *defaultView() const { return m_defaultView; }
    EventImpl *createEvent(const DOMString &eventType, int &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
    };

    bool hasListenerType(ListenerType listenerType) const { return (m_listenerTypes & listenerType); }
    void addListenerType(ListenerType listenerType) { m_listenerTypes = m_listenerTypes | listenerType; }

    CSSStyleDeclarationImpl *getOverrideStyle(ElementImpl *elt, DOMStringImpl *pseudoElt);

    bool async() const { return m_async; }
    void setAsync(bool b) { m_async = b; }
    void abort();
    void load(const DOMString &uri);
    void loadXML(const DOMString &source);
    // from cachedObjectClient
    void setStyleSheet(const DOM::DOMString &url, const DOM::DOMString &sheet);
    void error(int err, const QString &text);

    typedef QMap<QString, ProcessingInstructionImpl*> LocalStyleRefs;
    LocalStyleRefs* localStyleRefs() { return &m_localStyleRefs; }

    virtual void defaultEventHandler(EventImpl *evt);
    virtual void setHTMLWindowEventListener(int id, EventListener *listener);
    EventListener *getHTMLWindowEventListener(int id);
    EventListener *createHTMLEventListener(const QString& code, const QString& name, NodeImpl* node);

    void addWindowEventListener(int id, EventListener *listener, const bool useCapture);
    void removeWindowEventListener(int id, EventListener *listener, bool useCapture);
    bool hasWindowEventListener(int id);

    EventListener *createHTMLEventListener(QString code);

    /**
     * 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
     */
    NodeImpl *nextFocusNode(NodeImpl *fromNode);

    /**
     * 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
     */
    NodeImpl *previousFocusNode(NodeImpl *fromNode);

    ElementImpl* findAccessKeyElement(QChar c);

    int nodeAbsIndex(NodeImpl *node);
    NodeImpl *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 DOMString &equiv, const DOMString &content);

    void dispatchImageLoadEventSoon(HTMLImageElementImpl *);
    void dispatchImageLoadEventsNow();
    void removeImage(HTMLImageElementImpl *);
    virtual void timerEvent(QTimerEvent *);

    // Returns the owning element in the parent document.
    // Returns 0 if this is the top level document.
    ElementImpl *ownerElement() const;

    DOMString domain() const;
    void setDomain( const DOMString &newDomain ); // not part of the DOM

    bool isURLAllowed(const QString& url) const;

    HTMLElementImpl* body();

    DOMString toString() const;

    void incDOMTreeVersion() { ++m_domtree_version; }
    unsigned int domTreeVersion() const { return m_domtree_version; }

    QDict<khtml::CounterNode>* counters(const khtml::RenderObject* o) { return m_counterDict[(void*)o]; }
    void setCounters(const khtml::RenderObject* o, QDict<khtml::CounterNode> *dict) { m_counterDict.insert((void*)o, dict);}
    void removeCounters(const khtml::RenderObject* o) { m_counterDict.remove((void*)o); }


    ElementMappingCache& underDocNamedCache() {
        return m_underDocNamedCache;
    }

    NodeListImpl::Cache* acquireCachedNodeListInfo(NodeListImpl::CacheFactory* fact,
                                                   NodeImpl* base, int type);
    void                 releaseCachedNodeListInfo(NodeListImpl::Cache* cache);

    ElementMappingCache& getElementByIdCache() const {
        return m_getElementByIdCache;
    }

signals:
    void finishedParsing();

protected:
    khtml::CSSStyleSelector *m_styleSelector;
    KHTMLView *m_view;
    QStringList m_state;

    khtml::DocLoader *m_docLoader;
    khtml::Tokenizer *m_tokenizer;
    KURL m_url;
    KURL m_baseURL;
    QString m_baseTarget;

    DocumentTypeImpl *m_doctype;
    DOMImplementationImpl *m_implementation;

    QString m_usersheet;
    QString m_printSheet;
    QStringList m_availableSheets;

    // 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;
    bool m_ignorePendingStylesheets;

    CSSStyleSheetImpl *m_elemSheet;

    QPaintDevice *m_paintDevice;
    QPaintDeviceMetrics *m_paintDeviceMetrics;
    ParseMode pMode;
    HTMLMode hMode;

    QColor m_textColor;
    NodeImpl *m_hoverNode;
    NodeImpl *m_focusNode;
    NodeImpl *m_cssTarget;

    unsigned int m_domtree_version;

    struct IdNameMapping {
        IdNameMapping(unsigned short _start)
            : idStart(_start), count(0) {}
        ~IdNameMapping() {
            QIntDictIterator<DOM::DOMStringImpl> it(names);
            for (; it.current() ; ++it)
                it.current()->deref();
        }
        unsigned short idStart;
        unsigned short count;
        QIntDict<DOM::DOMStringImpl> names;
        QDict<void> ids;
    };

    IdNameMapping *m_attrMap;
    IdNameMapping *m_elementMap;
    IdNameMapping *m_namespaceMap;

    QPtrList<NodeIteratorImpl> m_nodeIterators;
    AbstractViewImpl *m_defaultView;

    unsigned short m_listenerTypes;
    StyleSheetListImpl* m_styleSheets;
    StyleSheetListImpl *m_addedStyleSheets; // programmatically added style sheets
    LocalStyleRefs m_localStyleRefs; // references to inlined style elements
    RegisteredListenerList m_windowEventListeners;
    QPtrList<NodeImpl> m_maintainsState;

    // ### evaluate for placement in RenderStyle
    QPtrDict<QDict<khtml::CounterNode> > m_counterDict;

    bool visuallyOrdered;
    bool m_bParsing;
    bool m_docChanged;
    bool m_styleSelectorDirty;
    bool m_inStyleRecalc;
    bool m_usesDescendantRules;
    bool m_async;
    bool m_hadLoadError;
    bool m_docLoading;
    bool m_inSyncLoad;

    DOMString m_title;
    DOMString m_preferredStylesheetSet;
    khtml::CachedCSSStyleSheet *m_loadingXMLDoc;

    int m_decoderMibEnum;

    //Forms, images, etc., must be quickly accessible via document.name.
    ElementMappingCache m_underDocNamedCache;

    //Cache for nodelists and collections.
    QIntDict<NodeListImpl::Cache> m_nodeListCache;

    QPtrList<HTMLImageElementImpl> m_imageLoadEventDispatchSoonList;
    QPtrList<HTMLImageElementImpl> m_imageLoadEventDispatchingList;
    int m_imageLoadEventTimer;

    //Cache for getElementById
    mutable ElementMappingCache m_getElementByIdCache;

    khtml::RenderArena* m_renderArena;
private:
    mutable DOMString m_domain;
};

class DocumentFragmentImpl : public NodeBaseImpl
{
public:
    DocumentFragmentImpl(DocumentPtr *doc);
    DocumentFragmentImpl(const DocumentFragmentImpl &other);

    // DOM methods overridden from  parent classes
    virtual DOMString nodeName() const;
    virtual unsigned short nodeType() const;
    virtual NodeImpl *cloneNode ( bool deep );

    // Other methods (not part of DOM)
    virtual bool childTypeAllowed( unsigned short type );

    virtual DOMString toString() const;
};


class DocumentTypeImpl : public NodeImpl
{
public:
    DocumentTypeImpl(DOMImplementationImpl *_implementation, DocumentPtr *doc,
                     const DOMString &qualifiedName, const DOMString &publicId,
                     const DOMString &systemId);
    ~DocumentTypeImpl();

    // DOM methods & attributes for DocumentType
    NamedNodeMapImpl *entities() const;
    NamedNodeMapImpl *notations() const;

    DOMString name() const { return m_qualifiedName; }
    DOMString publicId() const { return m_publicId; }
    DOMString systemId() const { return m_systemId; }
    DOMString internalSubset() const { return m_subset; }

    // DOM methods overridden from  parent classes
    virtual DOMString nodeName() const;
    virtual unsigned short nodeType() const;
    virtual bool childTypeAllowed( unsigned short type );
    virtual NodeImpl *cloneNode ( bool deep );

    // Other methods (not part of DOM)
    void setName(const DOMString& n) { m_qualifiedName = n; }
    void setPublicId(const DOMString& publicId) { m_publicId = publicId; }
    void setSystemId(const DOMString& systemId) { m_systemId = systemId; }
    DOMImplementationImpl *implementation() const { return m_implementation; }
    void copyFrom(const DocumentTypeImpl&);

    virtual DOMString toString() const;

protected:
    DOMImplementationImpl *m_implementation;
    mutable NamedNodeMapImpl* m_entities;
    mutable NamedNodeMapImpl* m_notations;

    DOMString m_qualifiedName;
    DOMString m_publicId;
    DOMString m_systemId;
    DOMString m_subset;
};

} //namespace
#endif