refactor: new signal ClientConnection::requestShowError

src/lib/gui/core/ClientConnection.cpp

@@ -75,6 +75,7 @@ void ClientConnection::showMessage(const QString &logLine)
   if (error == NoError)
     return;
 
+  Q_EMIT requestShowError(error, address);
   Q_EMIT messageShowing();
   m_deps->showError(m_pParent, error, address);
 }

src/lib/gui/core/ClientConnection.h

@@ -42,6 +42,13 @@ public:
   }
 
 Q_SIGNALS:
+  /**
+   * @brief requestShowError, This signal is emitted when the client
+   * connection would like the owning process to report an error message
+   * @param error the type of error being reported
+   * @param address of the host
+   */
+  void requestShowError(deskflow::gui::messages::ClientError error, const QString &address);
   void messageShowing();
 
 private: