Added proper signal for unknown messages

src/uas/UAS.cc

@@ -1532,15 +1532,7 @@ void UAS::receiveMessage(LinkInterface* link, mavlink_message_t message)
             {
                 unknownPackets.append(message.msgid);
 
-                // XXX Do NOT show this to users, as they will attribute
-                // completely random problems to this message and won't
-                // even bother to look up what the message actually is.
-
-//                QString errString = tr("UNABLE TO DECODE MESSAGE NUMBER %1").arg(message.msgid);
-//                //GAudioOutput::instance()->say(errString+tr(", please check console for details."));
-//                emit textMessageReceived(uasId, message.compid, 255, errString);
-//                std::cout << "Unable to decode message from system " << std::dec << static_cast<int>(message.sysid) << " with message id:" << static_cast<int>(message.msgid) << std::endl;
-//                //qDebug() << std::cerr << "Unable to decode message from system " << std::dec << static_cast<int>(message.acid) << " with message id:" << static_cast<int>(message.msgid) << std::endl;
+                emit packetNotHandled(uasId, message.compid, message.msgid);
             }
         }
             break;

src/uas/UASInterface.h

@@ -643,6 +643,9 @@ signals:
     // HOME POSITION / ORIGIN CHANGES
     void homePositionChanged(int uas, double lat, double lon, double alt);
 
+    /** @brief The system received an unknown message, which it could not interpret */
+    void unknownPacketReceived(int uas, int component, int messageid);
+
 protected:
 
     // TIMEOUT CONSTANTS