feat(video): Error message on call fail

notifies user if call ended unexpectedly

src/core/coreav.cpp

@@ -728,7 +728,7 @@ void CoreAV::stateCallback(ToxAV* toxav, uint32_t friendNum, uint32_t state, voi
     if (state & TOXAV_FRIEND_CALL_STATE_ERROR) {
         qWarning() << "Call with friend" << friendNum << "died of unnatural causes!";
         calls.remove(friendNum);
-        emit self->avEnd(friendNum);
+        emit self->avEnd(friendNum, true);
     } else if (state & TOXAV_FRIEND_CALL_STATE_FINISHED) {
         qDebug() << "Call with friend" << friendNum << "finished quietly";
         calls.remove(friendNum);

src/core/coreav.h

@@ -92,7 +92,7 @@ public slots:
 signals:
     void avInvite(uint32_t friendId, bool video);
     void avStart(uint32_t friendId, bool video);
-    void avEnd(uint32_t friendId);
+    void avEnd(uint32_t friendId, bool error = false);
 
 private slots:
     static void callCallback(ToxAV* toxAV, uint32_t friendNum, bool audio, bool video, void* self);

src/widget/form/chatform.cpp

@@ -378,7 +378,7 @@ void ChatForm::onAvStart(uint32_t friendId, bool video)
     startCounter();
 }
 
-void ChatForm::onAvEnd(uint32_t friendId)
+void ChatForm::onAvEnd(uint32_t friendId, bool error)
 {
     if (friendId != f->getFriendId()) {
         return;
@@ -392,7 +392,7 @@ void ChatForm::onAvEnd(uint32_t friendId)
     }
 
     updateCallButtons();
-    stopCounter();
+    stopCounter(error);
     hideNetcam();
 }
 
@@ -891,14 +891,17 @@ void ChatForm::startCounter()
     callDuration->show();
 }
 
-void ChatForm::stopCounter()
+void ChatForm::stopCounter(bool error)
 {
     if (!callDurationTimer) {
         return;
     }
     QString dhms = secondsToDHMS(timeElapsed.elapsed() / 1000);
     QString name = f->getDisplayedName();
-    addSystemInfoMessage(tr("Call with %1 ended. %2").arg(name, dhms), ChatMessage::INFO,
+    QString mess = error ? "Call with %1 ended unexpectedly. %2" : "Call with %1 ended. %2";
+    // TODO: add notification once notifications are implemented
+
+    addSystemInfoMessage(tr(mess.toStdString().c_str()).arg(name, dhms), ChatMessage::INFO,
                          QDateTime::currentDateTime());
     callDurationTimer->stop();
     callDuration->setText("");

src/widget/form/chatform.h

@@ -68,7 +68,7 @@ public slots:
     void onFileRecvRequest(ToxFile file);
     void onAvInvite(uint32_t friendId, bool video);
     void onAvStart(uint32_t friendId, bool video);
-    void onAvEnd(uint32_t friendId);
+    void onAvEnd(uint32_t friendId, bool error);
     void onAvatarChange(uint32_t friendId, const QPixmap& pic);
     void onAvatarRemoved(uint32_t friendId);
 
@@ -108,7 +108,7 @@ private:
     void retranslateUi();
     void showOutgoingCall(bool video);
     void startCounter();
-    void stopCounter();
+    void stopCounter(bool error = false);
     void updateCallButtons();
     void SendMessageStr(QString msg);