khtmlview.cpp.orig

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

       _width = visibleWidth();

    killTimer(d->layoutTimerId);
    d->layoutTimerId = 0;
    d->layoutSchedulingEnabled=true;
}

void KHTMLView::closeChildDialogs()
{
    QObjectList *dlgs = queryList("QDialog");
    for (QObject *dlg = dlgs->first(); dlg; dlg = dlgs->next())
    {
        KDialogBase* dlgbase = dynamic_cast<KDialogBase *>( dlg );
        if ( dlgbase ) {
            if ( dlgbase->testWFlags( WShowModal ) ) {
                kdDebug(6000) << "closeChildDialogs: closing dialog " << dlgbase << endl;
                // close() ends up calling QButton::animateClick, which isn't immediate
                // we need something the exits the event loop immediately (#49068)
                dlgbase->cancel();
            }
        }
        else
        {
            kdWarning() << "closeChildDialogs: not a KDialogBase! Don't use QDialogs in KDE! " << static_cast<QWidget*>(dlg) << endl;
            static_cast<QWidget*>(dlg)->hide();
        }
    }
    delete dlgs;
    d->m_dialogsAllowed = false;
}

bool KHTMLView::dialogsAllowed() {
    bool allowed = d->m_dialogsAllowed;
    KHTMLPart* p = m_part->parentPart();
    if (p && p->view())
        allowed &= p->view()->dialogsAllowed();
    return allowed;
}

void KHTMLView::closeEvent( QCloseEvent* ev )
{
    closeChildDialogs();
    QScrollView::closeEvent( ev );
}

//
// Event Handling
//
/////////////////

void KHTMLView::viewportMousePressEvent( QMouseEvent *_mouse )
{
    if (!m_part->xmlDocImpl()) return;
    if (d->possibleTripleClick && ( _mouse->button() & MouseButtonMask ) == LeftButton)
    {
        viewportMouseDoubleClickEvent( _mouse ); // it handles triple clicks too
        return;
    }

    int xm, ym;
    viewportToContents(_mouse->x(), _mouse->y(), xm, ym);
    //kdDebug( 6000 ) << "mousePressEvent: viewport=("<<_mouse->x()<<"/"<<_mouse->y()<<"), contents=(" << xm << "/" << ym << ")\n";

    d->isDoubleClick = false;

    DOM::NodeImpl::MouseEvent mev( _mouse->stateAfter(), DOM::NodeImpl::MousePress );
    m_part->xmlDocImpl()->prepareMouseEvent( false, xm, ym, &mev );

    //kdDebug(6000) << "innerNode="<<mev.innerNode.nodeName().string()<<endl;

    if ( (_mouse->button() == MidButton) &&
          !m_part->d->m_bOpenMiddleClick && !d->m_mouseScrollTimer &&
          mev.url.isNull() && (mev.innerNode.elementId() != ID_INPUT) ) {
        QPoint point = mapFromGlobal( _mouse->globalPos() );

        d->m_mouseScroll_byX = 0;
        d->m_mouseScroll_byY = 0;

        d->m_mouseScrollTimer = new QTimer( this );
        connect( d->m_mouseScrollTimer, SIGNAL(timeout()), this, SLOT(slotMouseScrollTimer()) );

        if ( !d->m_mouseScrollIndicator ) {
            QPixmap pixmap, icon;
            pixmap.resize( 48, 48 );
            pixmap.fill( QColor( qRgba( 127, 127, 127, 127 ) ) );

            QPainter p( &pixmap );
            icon = KGlobal::iconLoader()->loadIcon( "1uparrow", KIcon::Small );
            p.drawPixmap( 16, 0, icon );
            icon = KGlobal::iconLoader()->loadIcon( "1leftarrow", KIcon::Small );
            p.drawPixmap( 0, 16, icon );
            icon = KGlobal::iconLoader()->loadIcon( "1downarrow", KIcon::Small );
            p.drawPixmap( 16, 32,icon  );
            icon = KGlobal::iconLoader()->loadIcon( "1rightarrow", KIcon::Small );
            p.drawPixmap( 32, 16, icon );
            p.drawEllipse( 23, 23, 2, 2 );

            d->m_mouseScrollIndicator = new QWidget( this, 0 );
            d->m_mouseScrollIndicator->setFixedSize( 48, 48 );
            d->m_mouseScrollIndicator->setPaletteBackgroundPixmap( pixmap );
        }
        d->m_mouseScrollIndicator->move( point.x()-24, point.y()-24 );

        bool hasHorBar = visibleWidth() < contentsWidth();
        bool hasVerBar = visibleHeight() < contentsHeight();

        KConfig *config = KGlobal::config();
        KConfigGroupSaver saver( config, "HTML Settings" );
        if ( config->readBoolEntry( "ShowMouseScrollIndicator", true ) ) {
            d->m_mouseScrollIndicator->show();
            d->m_mouseScrollIndicator->unsetCursor();

            QBitmap mask = d->m_mouseScrollIndicator->paletteBackgroundPixmap()->createHeuristicMask( true );

	    if ( hasHorBar && !hasVerBar ) {
                QBitmap bm( 16, 16, true );
                bitBlt( &mask, 16,  0, &bm, 0, 0, -1, -1 );
                bitBlt( &mask, 16, 32, &bm, 0, 0, -1, -1 );
                d->m_mouseScrollIndicator->setCursor( KCursor::SizeHorCursor );
            }
            else if ( !hasHorBar && hasVerBar ) {
                QBitmap bm( 16, 16, true );
                bitBlt( &mask,  0, 16, &bm, 0, 0, -1, -1 );
                bitBlt( &mask, 32, 16, &bm, 0, 0, -1, -1 );
                d->m_mouseScrollIndicator->setCursor( KCursor::SizeVerCursor );
            }
            else
                d->m_mouseScrollIndicator->setCursor( KCursor::SizeAllCursor );

            d->m_mouseScrollIndicator->setMask( mask );
        }
        else {
            if ( hasHorBar && !hasVerBar )
                viewport()->setCursor( KCursor::SizeHorCursor );
            else if ( !hasHorBar && hasVerBar )
                viewport()->setCursor( KCursor::SizeVerCursor );
            else
                viewport()->setCursor( KCursor::SizeAllCursor );
        }

        return;
    }
    else if ( d->m_mouseScrollTimer ) {
        delete d->m_mouseScrollTimer;
        d->m_mouseScrollTimer = 0;

        if ( d->m_mouseScrollIndicator )
            d->m_mouseScrollIndicator->hide();
    }

	d->clickCount = 1;
	d->clickX = xm;
	d->clickY = ym;

    bool swallowEvent = dispatchMouseEvent(EventImpl::MOUSEDOWN_EVENT,mev.innerNode.handle(),mev.innerNonSharedNode.handle(),true,
                                           d->clickCount,_mouse,true,DOM::NodeImpl::MousePress);

    khtml::RenderObject* r = mev.innerNode.handle() ? mev.innerNode.handle()->renderer() : 0;
    if (r && r->isWidget())
	_mouse->ignore();

    if (!swallowEvent) {
	emit m_part->nodeActivated(mev.innerNode);

	khtml::MousePressEvent event( _mouse, xm, ym, mev.url, mev.target, mev.innerNode );
        QApplication::sendEvent( m_part, &event );
        // we might be deleted after this
    }
}

void KHTMLView::viewportMouseDoubleClickEvent( QMouseEvent *_mouse )
{
    if(!m_part->xmlDocImpl()) return;

    int xm, ym;
    viewportToContents(_mouse->x(), _mouse->y(), xm, ym);

    kdDebug( 6000 ) << "mouseDblClickEvent: x=" << xm << ", y=" << ym << endl;

    d->isDoubleClick = true;

    DOM::NodeImpl::MouseEvent mev( _mouse->stateAfter(), DOM::NodeImpl::MouseDblClick );
    m_part->xmlDocImpl()->prepareMouseEvent( false, xm, ym, &mev );

    // We do the same thing as viewportMousePressEvent() here, since the DOM does not treat
    // single and double-click events as separate (only the detail, i.e. number of clicks differs)
    if (d->clickCount > 0 &&
        QPoint(d->clickX-xm,d->clickY-ym).manhattanLength() <= QApplication::startDragDistance())
	d->clickCount++;
    else { // shouldn't happen, if Qt has the same criterias for double clicks.
	d->clickCount = 1;
	d->clickX = xm;
	d->clickY = ym;
    }
    bool swallowEvent = dispatchMouseEvent(EventImpl::MOUSEDOWN_EVENT,mev.innerNode.handle(),mev.innerNonSharedNode.handle(),true,
                                           d->clickCount,_mouse,true,DOM::NodeImpl::MouseDblClick);

    khtml::RenderObject* r = mev.innerNode.handle() ? mev.innerNode.handle()->renderer() : 0;
    if (r && r->isWidget())
	_mouse->ignore();

    if (!swallowEvent) {
	khtml::MouseDoubleClickEvent event( _mouse, xm, ym, mev.url, mev.target, mev.innerNode, d->clickCount );
	QApplication::sendEvent( m_part, &event );
    }

    d->possibleTripleClick=true;
    QTimer::singleShot(QApplication::doubleClickInterval(),this,SLOT(tripleClickTimeout()));
}

void KHTMLView::tripleClickTimeout()
{
    d->possibleTripleClick = false;
    d->clickCount = 0;
}

static inline void forwardPeripheralEvent(khtml::RenderWidget* r, QMouseEvent* me, int x, int y)
{
    int absx = 0;
    int absy = 0;
    r->absolutePosition(absx, absy);
    QPoint p(x-absx, y-absy);
    QMouseEvent fw(me->type(), p, me->button(), me->state());
    QWidget* w = r->widget();
    if(w)
        static_cast<khtml::RenderWidget::EventPropagator*>(w)->sendEvent(&fw);
}

void KHTMLView::viewportMouseMoveEvent( QMouseEvent * _mouse )
{
    if ( d->m_mouseScrollTimer ) {
        QPoint point = mapFromGlobal( _mouse->globalPos() );

        int deltaX = point.x() - d->m_mouseScrollIndicator->x() - 24;
        int deltaY = point.y() - d->m_mouseScrollIndicator->y() - 24;

        (deltaX > 0) ? d->m_mouseScroll_byX = 1 : d->m_mouseScroll_byX = -1;
        (deltaY > 0) ? d->m_mouseScroll_byY = 1 : d->m_mouseScroll_byY = -1;

        int adX = abs( deltaX );
        int adY = abs( deltaY );

        if (adX > 100) d->m_mouseScroll_byX *= 7;
        else if (adX > 75) d->m_mouseScroll_byX *= 4;
        else if (adX > 50) d->m_mouseScroll_byX *= 2;
        else if (adX > 25) d->m_mouseScroll_byX *= 1;
        else d->m_mouseScroll_byX = 0;

        if (adY > 100) d->m_mouseScroll_byY *= 7;
        else if (adY > 75) d->m_mouseScroll_byY *= 4;
        else if (adY > 50) d->m_mouseScroll_byY *= 2;
        else if (adY > 25) d->m_mouseScroll_byY *= 1;
        else d->m_mouseScroll_byY = 0;

        if (d->m_mouseScroll_byX == 0 && d->m_mouseScroll_byY == 0) {
            d->m_mouseScrollTimer->stop();
        }
        else if (!d->m_mouseScrollTimer->isActive()) {
            d->m_mouseScrollTimer->changeInterval( 20 );
        }
    }

    if(!m_part->xmlDocImpl()) return;

    int xm, ym;
    viewportToContents(_mouse->x(), _mouse->y(), xm, ym);

    DOM::NodeImpl::MouseEvent mev( _mouse->stateAfter(), DOM::NodeImpl::MouseMove );
    // Do not modify :hover/:active state while mouse is pressed.
    m_part->xmlDocImpl()->prepareMouseEvent( _mouse->state() & Qt::MouseButtonMask /*readonly ?*/, xm, ym, &mev );

//     kdDebug(6000) << "mouse move: " << _mouse->pos()
// 		  << " button " << _mouse->button()
// 		  << " state " << _mouse->state() << endl;

    bool swallowEvent = dispatchMouseEvent(EventImpl::MOUSEMOVE_EVENT,mev.innerNode.handle(),mev.innerNonSharedNode.handle(),false,
                                           0,_mouse,true,DOM::NodeImpl::MouseMove);

    if (d->clickCount > 0 &&
        QPoint(d->clickX-xm,d->clickY-ym).manhattanLength() > QApplication::startDragDistance()) {
	d->clickCount = 0;  // moving the mouse outside the threshold invalidates the click
    }

    // execute the scheduled script. This is to make sure the mouseover events come after the mouseout events
    m_part->executeScheduledScript();

    DOM::NodeImpl* fn = m_part->xmlDocImpl()->focusNode();
    if (fn && fn != mev.innerNode.handle() &&
        fn->renderer() && fn->renderer()->isWidget()) {
        forwardPeripheralEvent(static_cast<khtml::RenderWidget*>(fn->renderer()), _mouse, xm, ym);
    }

    khtml::RenderObject* r = mev.innerNode.handle() ? mev.innerNode.handle()->renderer() : 0;
    khtml::RenderStyle* style = (r && r->style()) ? r->style() : 0;
    QCursor c;
    bool mailtoCursor = false;
    switch ( style ? style->cursor() : CURSOR_AUTO) {
    case CURSOR_AUTO:
        if ( r && r->isText() )
            c = KCursor::ibeamCursor();
        if ( mev.url.length() && m_part->settings()->changeCursor() ) {
            c = m_part->urlCursor();
	    if (mev.url.string().startsWith("mailto:") && mev.url.string().find('@')>0)
                mailtoCursor = true;
        }

        if (r && r->isFrameSet() && !static_cast<RenderFrameSet*>(r)->noResize())
            c = QCursor(static_cast<RenderFrameSet*>(r)->cursorShape());

        break;
    case CURSOR_CROSS:
        c = KCursor::crossCursor();
        break;
    case CURSOR_POINTER:
        c = m_part->urlCursor();
	if (mev.url.string().startsWith("mailto:") && mev.url.string().find('@')>0)
            mailtoCursor = true;
        break;
    case CURSOR_PROGRESS:
        c = KCursor::workingCursor();
        break;
    case CURSOR_MOVE:
        c = KCursor::sizeAllCursor();
        break;
    case CURSOR_E_RESIZE:
    case CURSOR_W_RESIZE:
        c = KCursor::sizeHorCursor();
        break;
    case CURSOR_N_RESIZE:
    case CURSOR_S_RESIZE:
        c = KCursor::sizeVerCursor();
        break;
    case CURSOR_NE_RESIZE:
    case CURSOR_SW_RESIZE:
        c = KCursor::sizeBDiagCursor();
        break;
    case CURSOR_NW_RESIZE:
    case CURSOR_SE_RESIZE:
        c = KCursor::sizeFDiagCursor();
        break;
    case CURSOR_TEXT:
        c = KCursor::ibeamCursor();
        break;
    case CURSOR_WAIT:
        c = KCursor::waitCursor();
        break;
    case CURSOR_HELP:
        c = KCursor::whatsThisCursor();
        break;
    case CURSOR_DEFAULT:
        break;
    }

    if ( viewport()->cursor().handle() != c.handle() ) {
        if( c.handle() == KCursor::arrowCursor().handle()) {
            for (KHTMLPart* p = m_part; p; p = p->parentPart())
                p->view()->viewport()->unsetCursor();
        }
        else {
            viewport()->setCursor( c );
        }
    }

    if ( mailtoCursor && isVisible() && hasFocus() ) {
#ifdef Q_WS_X11
        if( !d->cursor_icon_widget ) {
            QPixmap icon_pixmap = KGlobal::iconLoader()->loadIcon( "mail_generic", KIcon::Small, 0, KIcon::DefaultState, 0, true );
            d->cursor_icon_widget = new QWidget( NULL, NULL, WX11BypassWM );
            XSetWindowAttributes attr;
            attr.save_under = True;
            XChangeWindowAttributes( qt_xdisplay(), d->cursor_icon_widget->winId(), CWSaveUnder, &attr );
            d->cursor_icon_widget->resize( icon_pixmap.width(), icon_pixmap.height());
            if( icon_pixmap.mask() )
                d->cursor_icon_widget->setMask( *icon_pixmap.mask());
            else
                d->cursor_icon_widget->clearMask();
            d->cursor_icon_widget->setBackgroundPixmap( icon_pixmap );
            d->cursor_icon_widget->erase();
        }
        QPoint c_pos = QCursor::pos();
        d->cursor_icon_widget->move( c_pos.x() + 15, c_pos.y() + 15 );
        XRaiseWindow( qt_xdisplay(), d->cursor_icon_widget->winId());
        QApplication::flushX();
        d->cursor_icon_widget->show();
#endif
    }
    else if ( d->cursor_icon_widget )
        d->cursor_icon_widget->hide();

    if (r && r->isWidget()) {
	_mouse->ignore();
    }


    d->prevMouseX = xm;
    d->prevMouseY = ym;

    if (!swallowEvent) {
        khtml::MouseMoveEvent event( _mouse, xm, ym, mev.url, mev.target, mev.innerNode );
        QApplication::sendEvent( m_part, &event );
    }
}

void KHTMLView::viewportMouseReleaseEvent( QMouseEvent * _mouse )
{
    bool swallowEvent = false;
    int xm, ym;
    viewportToContents(_mouse->x(), _mouse->y(), xm, ym);
    DOM::NodeImpl::MouseEvent mev( _mouse->stateAfter(), DOM::NodeImpl::MouseRelease );

    if ( m_part->xmlDocImpl() )