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.

	}

	m_part->setStatusBarText(status.arg(d->findString.lower()),
	                         KHTMLPart::BarDefaultText);
}

void KHTMLView::updateFindAheadTimeout()
{
    if( d->typeAheadActivated )
        d->timer.start( 3000, true );
}

#endif // KHTML_NO_TYPE_AHEAD_FIND

void KHTMLView::keyReleaseEvent(QKeyEvent *_ke)
{
#ifndef KHTML_NO_TYPE_AHEAD_FIND
    if(d->typeAheadActivated) {
        _ke->accept();
        return;
    }
#endif
    if (d->m_caretViewContext && d->m_caretViewContext->keyReleasePending) {
        //caretKeyReleaseEvent(_ke);
	d->m_caretViewContext->keyReleasePending = false;
	return;
    }

    if( d->scrollSuspendPreActivate && _ke->key() != Key_Shift )
        d->scrollSuspendPreActivate = false;
    if( _ke->key() == Key_Shift && d->scrollSuspendPreActivate && _ke->state() == Qt::ShiftButton
        && !(KApplication::keyboardMouseState() & Qt::ShiftButton))
        if (d->scrollTimerId)
                d->scrollSuspended = !d->scrollSuspended;

    if (d->accessKeysEnabled) 
    {
        if (d->accessKeysPreActivate && _ke->key() != Key_Control) 
            d->accessKeysPreActivate=false;
        if (d->accessKeysPreActivate && _ke->state() == Qt::ControlButton && !(KApplication::keyboardMouseState() & Qt::ControlButton))
        {
	    displayAccessKeys();
	    m_part->setStatusBarText(i18n("Access Keys activated"),KHTMLPart::BarOverrideText);
	    d->accessKeysActivated = true;
	    d->accessKeysPreActivate = false;
            _ke->accept();
            return;
        }
	else if (d->accessKeysActivated) 
        {
            accessKeysTimeout();
            _ke->accept();
            return;
        }
    }

    // Send keyup event
    if ( dispatchKeyEvent( _ke ) )
    {
        _ke->accept();
        return;
    }

    QScrollView::keyReleaseEvent(_ke);
}

void KHTMLView::contentsContextMenuEvent ( QContextMenuEvent * /*ce*/ )
{
// ### what kind of c*** is that ?
#if 0
    if (!m_part->xmlDocImpl()) return;
    int xm = _ce->x();
    int ym = _ce->y();

    DOM::NodeImpl::MouseEvent mev( _ce->state(), DOM::NodeImpl::MouseMove ); // ### not a mouse event!
    m_part->xmlDocImpl()->prepareMouseEvent( xm, ym, &mev );

    NodeImpl *targetNode = mev.innerNode.handle();
    if (targetNode && targetNode->renderer() && targetNode->renderer()->isWidget()) {
        int absx = 0;
        int absy = 0;
        targetNode->renderer()->absolutePosition(absx,absy);
        QPoint pos(xm-absx,ym-absy);

        QWidget *w = static_cast<RenderWidget*>(targetNode->renderer())->widget();
        QContextMenuEvent cme(_ce->reason(),pos,_ce->globalPos(),_ce->state());
        setIgnoreEvents(true);
        QApplication::sendEvent(w,&cme);
        setIgnoreEvents(false);
    }
#endif
}

bool KHTMLView::focusNextPrevChild( bool next )
{
    // Now try to find the next child
    if (m_part->xmlDocImpl() && focusNextPrevNode(next))
    {
	if (m_part->xmlDocImpl()->focusNode())
	    kdDebug() << "focusNode.name: "
		      << m_part->xmlDocImpl()->focusNode()->nodeName().string() << endl;
	return true; // focus node found
    }

    // If we get here, pass tabbing control up to the next/previous child in our parent
    d->pseudoFocusNode = KHTMLViewPrivate::PFNone;
    if (m_part->parentPart() && m_part->parentPart()->view())
        return m_part->parentPart()->view()->focusNextPrevChild(next);

    return QWidget::focusNextPrevChild(next);
}

void KHTMLView::doAutoScroll()
{
    QPoint pos = QCursor::pos();
    pos = viewport()->mapFromGlobal( pos );

    int xm, ym;
    viewportToContents(pos.x(), pos.y(), xm, ym);

    pos = QPoint(pos.x() - viewport()->x(), pos.y() - viewport()->y());
    if ( (pos.y() < 0) || (pos.y() > visibleHeight()) ||
         (pos.x() < 0) || (pos.x() > visibleWidth()) )
    {
        ensureVisible( xm, ym, 0, 5 );

#ifndef KHTML_NO_SELECTION
        // extend the selection while scrolling
	DOM::Node innerNode;
	if (m_part->isExtendingSelection()) {
            RenderObject::NodeInfo renderInfo(true/*readonly*/, false/*active*/);
            m_part->xmlDocImpl()->renderer()->layer()
				->nodeAtPoint(renderInfo, xm, ym);
            innerNode = renderInfo.innerNode();
	}/*end if*/

        if (innerNode.handle() && innerNode.handle()->renderer()) {
            int absX, absY;
            innerNode.handle()->renderer()->absolutePosition(absX, absY);

            m_part->extendSelectionTo(xm, ym, absX, absY, innerNode);
        }/*end if*/
#endif // KHTML_NO_SELECTION
    }
}


class HackWidget : public QWidget
{
 public:
    inline void setNoErase() { setWFlags(getWFlags()|WRepaintNoErase); }
};

bool KHTMLView::eventFilter(QObject *o, QEvent *e)
{
    if ( e->type() == QEvent::AccelOverride ) {
	QKeyEvent* ke = (QKeyEvent*) e;
//kdDebug(6200) << "QEvent::AccelOverride" << endl;
	if (m_part->isEditable() || m_part->isCaretMode()
	    || (m_part->xmlDocImpl() && m_part->xmlDocImpl()->focusNode()
		&& m_part->xmlDocImpl()->focusNode()->contentEditable())) {
//kdDebug(6200) << "editable/navigable" << endl;
	    if ( (ke->state() & ControlButton) || (ke->state() & ShiftButton) ) {
		switch ( ke->key() ) {
		case Key_Left:
		case Key_Right:
		case Key_Up:
		case Key_Down:
		case Key_Home:
		case Key_End:
		    ke->accept();
//kdDebug(6200) << "eaten" << endl;
		    return true;
		default:
		    break;
		}
	    }
	}
    }

    if ( e->type() == QEvent::Leave && d->cursor_icon_widget )
        d->cursor_icon_widget->hide();

    QWidget *view = viewport();

    if (o == view) {
	// we need to install an event filter on all children of the viewport to
	// be able to get correct stacking of children within the document.
	if(e->type() == QEvent::ChildInserted) {
	    QObject *c = static_cast<QChildEvent *>(e)->child();
	    if (c->isWidgetType()) {
		QWidget *w = static_cast<QWidget *>(c);
		// don't install the event filter on toplevels
		if (w->parentWidget(true) == view) {
		    if (!strcmp(w->name(), "__khtml")) {
			w->installEventFilter(this);
			w->unsetCursor();
			if (!::qt_cast<QFrame*>(w))
			    w->setBackgroundMode( QWidget::NoBackground );
			static_cast<HackWidget *>(w)->setNoErase();
			if (w->children()) {
			    QObjectListIterator it(*w->children());
			    for (; it.current(); ++it) {
				QWidget *widget = ::qt_cast<QWidget *>(it.current());
				if (widget && !widget->isTopLevel()) {
				    if (!::qt_cast<QFrame*>(w))
				        widget->setBackgroundMode( QWidget::NoBackground );
				    static_cast<HackWidget *>(widget)->setNoErase();
				    widget->installEventFilter(this);
				}
			    }
			}
		    }
		}
	    }
	}
    } else if (o->isWidgetType()) {
	QWidget *v = static_cast<QWidget *>(o);
        QWidget *c = v;
	while (v && v != view) {
            c = v;
	    v = v->parentWidget(true);
	}

	if (v && !strcmp(c->name(), "__khtml")) {
	    bool block = false;
	    QWidget *w = static_cast<QWidget *>(o);
	    switch(e->type()) {
	    case QEvent::Paint:
		if (!allowWidgetPaintEvents) {
		    // eat the event. Like this we can control exactly when the widget
		    // get's repainted.
		    block = true;
		    int x = 0, y = 0;
		    QWidget *v = w;
		    while (v && v != view) {
			x += v->x();
			y += v->y();
			v = v->parentWidget();
		    }
		    viewportToContents( x, y, x, y );
		    QPaintEvent *pe = static_cast<QPaintEvent *>(e);
		    bool asap = !d->contentsMoving && ::qt_cast<QScrollView *>(c);

		    // QScrollView needs fast repaints
		    if ( asap && !d->painting && m_part->xmlDocImpl() && m_part->xmlDocImpl()->renderer() &&
		         !static_cast<khtml::RenderCanvas *>(m_part->xmlDocImpl()->renderer())->needsLayout() ) {
		        repaintContents(x + pe->rect().x(), y + pe->rect().y(),
	                                        pe->rect().width(), pe->rect().height(), true);
                    } else {
 		        scheduleRepaint(x + pe->rect().x(), y + pe->rect().y(),
 				    pe->rect().width(), pe->rect().height(), asap);
                    }
		}
		break;
	    case QEvent::MouseMove:
	    case QEvent::MouseButtonPress:
	    case QEvent::MouseButtonRelease:
	    case QEvent::MouseButtonDblClick: {
		if (w->parentWidget() == view && !::qt_cast<QScrollBar *>(w)) {
		    QMouseEvent *me = static_cast<QMouseEvent *>(e);
		    QPoint pt = (me->pos() + w->pos());
		    QMouseEvent me2(me->type(), pt, me->button(), me->state());

		    if (e->type() == QEvent::MouseMove)
			viewportMouseMoveEvent(&me2);
		    else if(e->type() == QEvent::MouseButtonPress)
			viewportMousePressEvent(&me2);
		    else if(e->type() == QEvent::MouseButtonRelease)
			viewportMouseReleaseEvent(&me2);
		    else
			viewportMouseDoubleClickEvent(&me2);
		    block = true;
                }
		break;
	    }
	    case QEvent::KeyPress:
	    case QEvent::KeyRelease:
		if (w->parentWidget() == view && !::qt_cast<QScrollBar *>(w)) {
		    QKeyEvent *ke = static_cast<QKeyEvent *>(e);
		    if (e->type() == QEvent::KeyPress)
			keyPressEvent(ke);
		    else
			keyReleaseEvent(ke);
		    block = true;
		}
	    default:
		break;
	    }
	    if (block) {
 		//qDebug("eating event");
		return true;
	    }
	}
    }

//    kdDebug(6000) <<"passing event on to sv event filter object=" << o->className() << " event=" << e->type() << endl;
    return QScrollView::eventFilter(o, e);
}


DOM::NodeImpl *KHTMLView::nodeUnderMouse() const
{
    return d->underMouse;
}

DOM::NodeImpl *KHTMLView::nonSharedNodeUnderMouse() const
{
    return d->underMouseNonShared;
}

bool KHTMLView::scrollTo(const QRect &bounds)
{
    d->scrollingSelf = true; // so scroll events get ignored

    int x, y, xe, ye;
    x = bounds.left();
    y = bounds.top();
    xe = bounds.right();
    ye = bounds.bottom();

    //kdDebug(6000)<<"scrolling coords: x="<<x<<" y="<<y<<" width="<<xe-x<<" height="<<ye-y<<endl;

    int deltax;
    int deltay;

    int curHeight = visibleHeight();
    int curWidth = visibleWidth();

    if (ye-y>curHeight-d->borderY)
	ye  = y + curHeight - d->borderY;

    if (xe-x>curWidth-d->borderX)
	xe = x + curWidth - d->borderX;

    // is xpos of target left of the view's border?
    if (x < contentsX() + d->borderX )
            deltax = x - contentsX() - d->borderX;
    // is xpos of target right of the view's right border?
    else if (xe + d->borderX > contentsX() + curWidth)
            deltax = xe + d->borderX - ( contentsX() + curWidth );
    else
        deltax = 0;

    // is ypos of target above upper border?
    if (y < contentsY() + d->borderY)
            deltay = y - contentsY() - d->borderY;
    // is ypos of target below lower border?
    else if (ye + d->borderY > contentsY() + curHeight)
            deltay = ye + d->borderY - ( contentsY() + curHeight );
    else
        deltay = 0;

    int maxx = curWidth-d->borderX;
    int maxy = curHeight-d->borderY;

    int scrollX,scrollY;

    scrollX = deltax > 0 ? (deltax > maxx ? maxx : deltax) : deltax == 0 ? 0 : (deltax>-maxx ? deltax : -maxx);
    scrollY = deltay > 0 ? (deltay > maxy ? maxy : deltay) : deltay == 0 ? 0 : (deltay>-maxy ? deltay : -maxy);

    if (contentsX() + scrollX < 0)
	scrollX = -contentsX();
    else if (contentsWidth() - visibleWidth() - contentsX() < scrollX)
	scrollX = contentsWidth() - visibleWidth() - contentsX();

    if (contentsY() + scrollY < 0)
	scrollY = -contentsY();
    else if (contentsHeight() - visibleHeight() - contentsY() < scrollY)
	scrollY = contentsHeight() - visibleHeight() - contentsY();

    scrollBy(scrollX, scrollY);

    d->scrollingSelf = false;

    if ( (abs(deltax)<=maxx) && (abs(deltay)<=maxy) )
	return true;
    else return false;

}

bool KHTMLView::focusNextPrevNode(bool next)
{
    // Sets the focus node of the document to be the node after (or if
    // next is false, before) the current focus node.  Only nodes that
    // are selectable (i.e. for which isFocusable() returns true) are
    // taken into account, and the order used is that specified in the
    // HTML spec (see DocumentImpl::nextFocusNode() and
    // DocumentImpl::previousFocusNode() for details).

    DocumentImpl *doc = m_part->xmlDocImpl();
    NodeImpl *oldFocusNode = doc->focusNode();

#if 1
    // If the user has scrolled the document, then instead of picking
    // the next focusable node in the document, use the first one that
    // is within the visible area (if possible).
    if (d->scrollBarMoved)
    {
	NodeImpl *toFocus;
	if (next)
	    toFocus = doc->nextFocusNode(oldFocusNode);
	else
	    toFocus = doc->previousFocusNode(oldFocusNode);

	if (!toFocus && oldFocusNode)
	    if (next)