mghtmlview.h

monqueror一个很具有参考价值的源玛

#ifndef KHTML_H
#define KHTML_H

#include "mgsize.h"
#include "mgwidget.h"
#include "render_root.h" 

#ifdef JAVASCRIPT_ENABLE

#if 0
#include <libjs/jsapi.h>
#include "../mgjs/mgjs_main.h"
#endif

typedef struct tagJsTimer{
	int id;
	char *exp;
	int expLength;
	} JsTimerStruct;
typedef struct tagJsEvent{
	int32 type;
	jsval value;
	} JsEventStruct;

#endif // JAVASCRIPT_ENABLE

template<class C> class QList;

class MGHTMLPart;
class MGHTMLViewPrivate;
class MGPainter;
class MGWidget;
class MGSize;

namespace DOM {
	class HTMLDocumentImpl;
	class ElementImpl;
	class HTMLElementImpl;
	class HTMLTitleElementImpl;
	class HTMLGenericFormElementImpl;
	class Range;
	class NodeImpl;
	class CSSProperty;
};

namespace khtml {
	class RenderObject;
	class RenderRoot;
	class RenderStyle;
	void applyRule(RenderStyle *style, DOM::CSSProperty *prop, DOM::ElementImpl *e);
};


class MGHTMLView : public MGWidget						// derived from window class
{
	friend class DOM::HTMLDocumentImpl;
	friend class DOM::HTMLElementImpl;
	friend class DOM::HTMLTitleElementImpl;
	friend class MGKHTMLPart;
	friend class khtml::RenderRoot;
	friend class DOM::HTMLGenericFormElementImpl;
	friend void khtml::applyRule(khtml::RenderStyle *style, DOM::CSSProperty *prop, DOM::ElementImpl *e);

public:
	khtml::RenderRoot *renderroot;
	MGHTMLView();
	virtual ~MGHTMLView();
	bool createView( int x, int y, int w, int h, bool visible, HWND hParent );
	DOM::HTMLDocumentImpl* doc() const;
   	MGHTMLPart *part() const {return m_part;}
	void setMarginWidth(int x) {_marginWidth = x;}
	int marginWidth() const {return _marginWidth;}
	void setMarginHeight(int y) {_marginHeight = y;}
	int marginHeight() {return _marginHeight; }

	int contentsX() const;
	int contentsY() const;
	int visibleWidth() const;
	int visibleHeight() const;
	void resizeContents( int w, int h );				// new function
	void updateContents( int x, int y, int w, int h );	// new function
	void repaintContents( int x, int y, int w, int h, bool );	// new function
//	bool openURL(const char* url);						// new function
	bool openURL();
	bool openURLFromBuffer(char *);
	void scrollBy (int deltax, int deltay);				// new function
	void setContentsPos( int x, int y);					// new function
					 
	int frameWidth() const { return _width; }

    // virtual functions
	virtual void layout();								// modified function
	virtual void addChild( MGWidget *child, int x = 0, int y = 0 );			// new function
	
	bool gotoNextLink();
	bool gotoPrevLink();

    // visualize that the item under the cursor has been pressed (true) or released(false)
	void toggleActLink(bool);

    //  Set vertical scrollbar mode. Reimplemented for internal reasons.
	virtual void setVScrollBarMode (LONG  mode );

    // Set horizontal scrollbar mode. Reimplemented for internal reasons.
	virtual void setHScrollBarMode (LONG mode );
    

	void useSlowRepaints();
	void clear();
	DOM::NodeImpl *nodeUnderMouse() const;
	void setURL(char * url);
	void setURL(KURL url);
	MGHTMLPart * getPart();
	KURL m_windowurl;

	
	bool LoadedMsgFromNet(unsigned char *url,unsigned char *buf,int len,int nType);

	void setLayouted(DOM::HTMLElementImpl *child,bool f);
	
protected:
	static int HTMLViewProc( HWND hWnd, int message, WPARAM wParam, LPARAM lParam );
private:
	void ShowChildWidget( bool show );								// new function
	void OnMouseMoveEvent (int x, int y, DWORD flags = 0);			// new function
	void OnMousePressEvent (int x, int y, DWORD flags = 0);			// new function
	void OnMouseDoubleClickEvent (int x, int y, DWORD flags = 0);	// new function
	void OnMouseReleaseEvent( int x, int y, DWORD flags = 0);		// new function
	void OnKeyPressEvent (int key, DWORD flags = 0);				// new function
	void OnKeyReleaseEvent (int key, DWORD flags = 0);				// new function
	
	void setLinkCursor(DOM::HTMLElementImpl *);
	bool gotoLink();
	bool gotoLink(DOM::HTMLElementImpl *);
	bool gotoLink (bool);

	//after data has been loaded to cache,then notify htmldocimpl and htmltokenizer.
	//if all script are loaded, close doc and free doc's tokenizer.
	bool ScriptDataProcessed();
		
	//signals:
	//	void cleared();

protected:
	void paintElement( khtml::RenderObject *o, int x, int y );
	//virtual void resizeEvent ( QResizeEvent * event );
	virtual bool focusNextPrevChild( bool next );
	virtual void drawContents ( HDC hdc, int clipx, int clipy, int clipw, int cliph );
	void doAutoScroll();

	void layoutIFrame(DOM::HTMLElementImpl *child);
		
private:
	void init();
	void restoreScrollBar();
	QString filename;
    // ------------------------------------- member variables ------------------------------------
protected:
	static QList<MGHTMLView> *lstViews;			//List of all open browsers.
	MGSize m_clntSize;
public:	
	int m_xOffset;
	int m_yOffset;
protected:	
	MGHTMLPart* m_part;
	MGPainter* m_painter;
	HCURSOR m_handCursor;
	MGHTMLViewPrivate* d;
									
	int _width;
	int _height;
	int _marginWidth;
	int _marginHeight;

public:
	DOM::HTMLDocumentImpl* m_doc;

#ifdef JAVASCRIPT_ENABLE
public:	
	JSRuntime* m_JSRuntime;
	JSObject* m_JSObject;
	JSContext* m_JSContext;
	QList<JsTimerStruct> m_JsTimer;
	int m_JsTimerId;
	QList<JsEventStruct> m_JsEvent;
	int m_JsEventSum;
	int32 m_JsEventTypeToCapture;
	int32 m_JsEventType, m_JsKeyEventValue;
	int m_JsEventPageX, m_JsEventPageY;
	bool m_bJsEventDocument;
#endif
	
};

#endif
// check connect(cleared())?????????