Fix krdc in view only mode: block key press events, disable clipboard sharing

This resolves Bug 1390

krdc/vnc/kvncview.cpp

@@ -338,6 +338,8 @@ TQSize KVncView::framebufferSize() {
 void KVncView::setViewOnly(bool s) {
 	m_viewOnly = s;
 
+	m_dontSendCb = s;
+
 	if (s)
 		setCursor(TQt::ArrowCursor);
 	else
@@ -610,6 +612,11 @@ void KVncView::wheelEvent(TQWheelEvent *e) {
 }
 
 void KVncView::pressKey(XEvent *xe) {
+	if (m_status != REMOTE_VIEW_CONNECTED)
+		return;
+	if (m_viewOnly)
+		return;
+
 	KKeyNative k(xe);
 	uint mod = k.mod();
 	if (mod & KKeyNative::modX(KKey::SHIFT))