mghtml_part.cpp

monqueror一个很具有参考价值的源玛

		m_url = url;
		//emit started( 0L );												// !!!!!
		if (!url.htmlRef().isEmpty())
			gotoAnchor(url.htmlRef());
		else
			d->m_view->setContentsPos( 0, 0 );
		d->m_bComplete = true;
		d->m_bParsing = false;
		//emit completed();													// !!!!!
		return true;
	}
//	closeURL();

//	connect( d->m_job, SIGNAL( result( KIO::Job * ) ),
//					SLOT( slotFinished( KIO::Job * ) ) );
//	connect( d->m_job, SIGNAL( data( KIO::Job*, const QByteArray &)),
//    				SLOT( slotData( KIO::Job*, const QByteArray &)));
//	d->m_bComplete = false;
//	d->m_workingURL = url;
//	m_url = url;
	//emit started( d->m_job );												// !!!!!
	return true;
}

bool MGHTMLPart::closeURL()													// !!!!!
{
	//if ( d->m_job )
	//{
//		KHTMLPageCache::self()->cancelEntry(d->m_cacheId);
	//	d->m_job->kill();
	//	d->m_job = 0;
	//}

	d->m_bComplete = true; // to avoid emitting completed() in slotFinishedParsing() (David)
	d->m_bReloading = false;

//	KHTMLPageCache::self()->cancelFetch(this);
	if ( d->m_bParsing )
	{
	//	slotFinishedParsing();
		d->m_bParsing = false;
	}

	if ( !d->m_workingURL.isEmpty() )
	{    
	//	emit d->m_extension->setLocationBarURL( m_url.prettyURL() );		//	!!!!!!
	}

	d->m_workingURL = KURL();
//	khtml::Cache::loader()->cancelRequests( m_url.url() );
	return true;
}



void MGHTMLPart::overURL( const QString &url, const QString &target )
{
//	emit onURL( url );						// ????? who response for it?

//	if ( url.isEmpty() )
//	{
//		emit setStatusBarText( url );
//		return;
//	}

//	if (url.find( QString::fromLatin1( "javascript:" ),0, false ) != -1 )
//	{
//		emit setStatusBarText(  url.mid(  url.find("javascript:",0,false)  )  );
//		return;
//	}

	KURL u = completeURL( url );
	QString com;

//	if ( u.isMalformed() )
//	{
//		emit setStatusBarText( u.prettyURL() );				// !!!!! change status bar text
//		return;
//	}

/*	if ( u.isLocalFile() )
	{
		QCString path = QFile::encodeName( u.path() );
		struct stat buff;
		stat( path.data(), &buff );
		struct stat lbuff;
		lstat( path.data(), &lbuff );
		QString text = u.url();
		QString text2 = text;

	if (S_ISLNK( lbuff.st_mode ) )
	{
		QString tmp;
		if ( com.isNull() )
			tmp = i18n( "Symbolic Link");
		else
			tmp = i18n("%1 (Link)").arg(com);
		char buff_two[1024];
		text += " -> ";
		int n = readlink ( path.data(), buff_two, 1022);
		if (n == -1)
		{
			text2 += "  ";
			text2 += tmp;
			emit setStatusBarText( text2 );
			return;
		}
		buff_two[n] = 0;
		text += buff_two;
		text += "  ";
		text += tmp;
	}
	else if ( S_ISREG( buff.st_mode ) )
	{
		if (buff.st_size < 1024)
			text = i18n("%1 (%2 bytes)").arg(text2).arg((long) buff.st_size);
		else
		{
			float d = (float) buff.st_size/1024.0;
			text = i18n("%1 (%2 K)").arg(text2).arg(KGlobal::locale()->formatNumber(d, 2)); // was %.2f
		}
		text += "  ";
		text += com;
	}
	else if ( S_ISDIR( buff.st_mode ) )
		{
			text += "  ";
			text += com;
		}
		else
		{
			text += "  ";
			text += com;
		}
		emit setStatusBarText( text );
	}
	else
	{
		QString extra;
		if (target == QString::fromLatin1("_blank"))
		{
			extra = i18n(" (In new window)");
		}
		else if (!target.isEmpty() &&
             (target != QString::fromLatin1("_top")) &&
             (target != QString::fromLatin1("_self")) &&
             (target != QString::fromLatin1("_parent")))
		{
			extra = i18n(" (In other frame)");
		}
		emit setStatusBarText( u.prettyURL()+extra );
	}*/
}

void MGHTMLPart::khtmlMouseReleaseEvent(int x, int y, DOM::Node node, DOM::DOMString innernodeurl)
{
	DOM::Node innerNode = node;
	d->m_mousePressNode = DOM::Node();

	// Used to prevent mouseMoveEvent from initiating a drag before the mouse is pressed again.
	d->m_bMousePressed = false;

	if ( !d->m_strSelectedURL.isEmpty())				// && _mouse->button() != RightButton )
	{
		QString target;
		QString url;
		url = splitUrlTarget(d->m_strSelectedURL, &target);

		// Visual action effect, over text links
		//if ( !innerNode.isNull() && innerNode.nodeType() == DOM::Node::TEXT_NODE )
		//{
		//	khtml::RenderText * renderText = static_cast<khtml::RenderText *>(innerNode.handle()->renderer());
		//	khtml::TextSlave * firstSlave = renderText->first();
		//	int x, y;
		//	renderText->absolutePosition( x, y );
		//	int vx, vy;
		//	view()->contentsToViewport( x, y, vx, vy );
		//	QRect r ( vx, vy, firstSlave->m_width, firstSlave->m_height );
		///	KIconEffect::visualActivate( view()->viewport(), r );
		//}
		//else if (!innerNode.isNull() && innerNode.elementId() == ID_IMG)
		//{
		//	HTMLImageElementImpl *i = static_cast<HTMLImageElementImpl *>(innerNode.handle());
		//	if ( i && i->isServerMap() )
		//	{
		//		khtml::RenderImage *r = static_cast<khtml::RenderImage *>(i->renderer());
		//		if(r)
		//		{
		//			int absx, absy, vx, vy;
		//			r->absolutePosition(absx, absy);
		//			view()->contentsToViewport( absx, absy, vx, vy );
		//			int x(_mouse->x() - vx), y(_mouse->y() - vy);
		//			url += QString("?%1,%2").arg(x).arg(y);
		//		}
		//	}
		//}
		urlSelected( url, 0, 1, target );
	}

	//if(!innerNode.isNull() && innerNode.nodeType() == DOM::Node::TEXT_NODE) 
	//{
	//	d->m_selectionEnd = innerNode;
	//	d->m_endOffset = event->offset();
    //}

    	// delete selection in case start and end position are at the same point
	//if(d->m_selectionStart == d->m_selectionEnd && d->m_startOffset == d->m_endOffset) 
	//{
	//	d->m_selectionStart = 0;
	//	d->m_selectionEnd = 0;
	//	d->m_startOffset = 0;
	//	d->m_endOffset = 0;
	//	emitSelectionChanged();
	//} 
	//else 
	//{
		// we have to get to know if end is before start or not...
	//	DOM::Node n = d->m_selectionStart;
	//	d->m_startBeforeEnd = false;
	//	if( d->m_selectionStart == d->m_selectionEnd ) 
	//	{
	//		if( d->m_startOffset < d->m_endOffset )
	//			d->m_startBeforeEnd = true;
	//	} 
	//	else 
	//	{
	//		while(!n.isNull()) 
	//		{
	//			if(n == d->m_selectionEnd) 
	//			{
	//				d->m_startBeforeEnd = true;
	//				break;
	//			}
	//			DOM::Node next = n.firstChild();
	//			if(next.isNull()) 
	//					next = n.nextSibling();
	//			while( next.isNull() && !n.parentNode().isNull() ) 
	//			{
	//				n = n.parentNode();
	//				next = n.nextSibling();
	//			}
	//			n = next;
	//		}
	//	}
	//	if(!d->m_startBeforeEnd)
	//	{
	//		DOM::Node tmpNode = d->m_selectionStart;
	//		int tmpOffset = d->m_startOffset;
	//		d->m_selectionStart = d->m_selectionEnd;
	//		d->m_startOffset = d->m_endOffset;
	//		d->m_selectionEnd = tmpNode;
	//		d->m_endOffset = tmpOffset;
	//		d->m_startBeforeEnd = true;
	//	}
	//	// get selected text and paste to the clipboard
	//	QString text = selectedText();
	//	text.replace(QRegExp(QChar(0xa0)), " ");
	//	QClipboard *cb = QApplication::clipboard();
	//	cb->setText(text);
	//	emitSelectionChanged();
	//}
}


void MGHTMLPart::clear()
{
	if ( d->m_bCleared )
		return;
	d->m_bCleared = true;
	d->m_bClearing = true;
	d->m_mousePressNode = DOM::Node();
//	if ( d->m_jscript )								// now we ignore js
//		d->m_jscript->clear();
	if ( d->m_doc )
	{
//		d->m_doc->detach();
//		d->m_doc->deref();
	}
	d->m_doc = 0;

	if ( d->m_view )
		d->m_view->clear();

	ConstFrameIt it = d->m_frames.begin();
	ConstFrameIt end = d->m_frames.end();
	for(; it != end; ++it )
	{
		if(it != NULL)
		{
			if ( (*it).m_view )
			{
				DestroyWindow((*it).m_view->getHwnd());
				delete (*it).m_view;
			}
		}
	}
	d->m_frames.clear();
	d->m_objects.clear();
	d->m_baseURL = KURL();
	d->m_baseTarget = QString::null;
	d->m_bClearing = false;
	d->m_frameNameId = 1;
	d->m_bMousePressed = false;
	d->m_totalImageCount = 0;
	d->m_loadedImages = 0;
}

void MGHTMLPart::startAutoScroll()
{
	//connect(&d->m_scrollTimer, SIGNAL( timeout() ), this, SLOT( slotAutoScroll() ));
	//d->m_scrollTimer.start(100, false);
	return;
}

void MGHTMLPart::stopAutoScroll()
{
	//disconnect(&d->m_scrollTimer, SIGNAL( timeout() ), this, SLOT( slotAutoScroll() ));
	//if (d->m_scrollTimer.isActive())
	//	d->m_scrollTimer.stop();
	return;
}

void MGHTMLPart::begin( const KURL &url, int xOffset, int yOffset )
{
	d->m_bCleared = false;
	m_url = url;
	if ( !m_url.isEmpty() )
	{
		KURL::List lst = KURL::split( m_url );
		KURL baseurl;
		if ( !lst.isEmpty() )
			baseurl = *lst.begin();
		setBaseURL(baseurl);
		KURL title( baseurl );
		title.setRef( QString::null );
		title.setQuery( QString::null );
//		emit setWindowCaption( title.url() );				// !!!!! 
	}
	//else
//		emit setWindowCaption( i18n( "* Unknown *" ) );		// !!!!!
	//	SetWindowText("Unknown *");							// !!!!! give a handle to it 
	if(d->m_doc != NULL)
		delete d->m_doc;
	d->m_doc = new HTMLDocumentImpl( d->m_view );
	d->m_doc->ref();
	d->m_doc->attach( d->m_view );
	d->m_doc->setURL( m_url.url() );
//	d->m_doc->setRestoreState(args.docState);
	d->m_doc->open();
	d->m_view->resizeContents( 0, 0 );
//	connect(d->m_doc,SIGNAL(finishedParsing()),this,SLOT(slotFinishedParsing()));
//	emit d->m_extension->enableAction( "print", true );
	d->m_bParsing = true;
}

void MGHTMLPart::setUserStyleSheet(const KURL &url)
{
	d->m_userSheetUrl = DOMString();
	d->m_userSheet = DOMString();
	//new khtml::PartStyleSheetLoader(d, url.url(), d->m_doc ? d->m_doc->docLoader() : 0);	!!!!!!
}



// ---------------------------- do not think it any more <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<

void MGHTMLPart::setUserStyleSheet(const QString &styleSheet)
{
	d->m_userSheet = styleSheet;
	d->m_userSheetUrl = DOMString();
}

void MGHTMLPart::khtmlMousePressEvent(int x, int y, DOM::Node Node, DOM::DOMString url)
{
	DOM::Node innerNode = Node;
	d->m_mousePressNode = innerNode;
	if ( url != 0 )
		d->m_strSelectedURL = url.string();
	else
		d->m_strSelectedURL = QString::null;
	d->m_bMousePressed = true;
	QString currentUrl = splitUrlTarget(d->m_strSelectedURL);
}

void MGHTMLPart::khtmlMouseMoveEvent(int x, int y, DOM::Node node, DOM::DOMString innernodeurl)
{
	DOM::DOMString url = innernodeurl;
	DOM::Node innerNode = node;

	if( d->m_bMousePressed && (!d->m_strSelectedURL.isEmpty() || innerNode.elementId() == ID_IMG ) &&
		d->m_bDnd && d->m_mousePressNode == innerNode ) 
		return;
	if ( !d->m_bMousePressed && url.length() && innerNode.elementId() == ID_IMG )
	{
		HTMLImageElementImpl *i = static_cast<HTMLImageElementImpl *>(innerNode.handle());
		if ( i && i->isServerMap() )
		{
			khtml::RenderImage *r = static_cast<khtml::RenderImage *>(i->renderer());
			if(r)
			{
				int absx, absy;
				//int vx, vy;
				r->absolutePosition(absx, absy);
				//view()->contentsToViewport( absx, absy, vx, vy );

				//int x(_mouse->x() - vx), y(_mouse->y() - vy);

				QString target;
				QString surl = splitUrlTarget(url.string(), &target);
				d->m_overURL = surl + QString("?%1,%2").arg(x).arg(y);
				overURL( d->m_overURL, target );
				return;
			}
		}
	}

	if ( !d->m_bMousePressed && url.length() )
	{
		QString target;
		QString surl = splitUrlTarget(url.string(), &target);
		if ( d->m_overURL.isEmpty() )
		{
			d->m_overURL = surl;
			overURL( d->m_overURL, target );
		}
		else if ( d->m_overURL != surl )
		{
			d->m_overURL = surl;
			overURL( d->m_overURL, target );
		}
		return;
	}
	else if( d->m_overURL.length() && !url.length() )
	{
		overURL( QString::null, QString::null );
		d->m_overURL = "";
	}
}

PLOGFONT MGHTMLPart::getFont (const MGFont& font)
{
	FontPair* fp;
	for (unsigned int i = 0; i < m_fontpool.count(); i++ ) 
	{
		fp = m_fontpool [i];
		if (fp->mgfont == font) 
		{
			return fp->logfont;
		}
	}
	fp = new FontPair ();
	fp->mgfont = font;
	fp->logfont = MGFont::CreateFont (font);
	m_fontpool.append (fp);
	return fp->logfont;
}

KURL MGHTMLPart::completeURL(const QString &url, const QString &)
{
	if (url.isEmpty())
	{
		return m_url;
	}
	if (d->m_baseURL.isEmpty())
	{
		KURL u ( m_url, url );
		return u;
	}
	///else
	{
		KURL u ( d->m_baseURL, url );
		return u;
	}
}

void MGHTMLPart::write( const char *str, int len )
{
	if ( len == 0 )
		return;
	if ( len == -1 )
		len = strlen( str );
	d->m_doc->write(QString(str) );
}

void MGHTMLPart::write( const QString &str )
{
	if ( str.isNull() )
		return;
	d->m_doc->write( str );
}

void MGHTMLPart::end()
{
	d->m_doc->finishParsing();
}

bool MGHTMLPart::gotoAnchor( const QString &name )
{
	HTMLCollectionImpl *anchors = new HTMLCollectionImpl( d->m_doc, HTMLCollectionImpl::DOC_ANCHORS);
	anchors->ref();
	NodeImpl *n = anchors->namedItem(name);