More error indication.

Also fixes #80.

src/controller.cpp

@@ -74,6 +74,10 @@ void Controller::loginWithCredentials(QString serverAddr, QString user,
       account.sync();
       addConnection(m_connection);
     });
+    connect(m_connection, &Connection::networkError,
+            [=](QString error, QByteArray detail) {
+              emit errorOccured("Network", error);
+            });
     connect(m_connection, &Connection::loginError,
             [=](QString error, QByteArray detail) {
               emit errorOccured("Login Failed", error);
@@ -141,6 +145,14 @@ void Controller::invokeLogin() {
         c->loadState();
         addConnection(c);
       });
+      connect(c, &Connection::loginError,
+              [=](QString error, QByteArray detail) {
+                emit errorOccured("Login Failed", error);
+              });
+      connect(c, &Connection::networkError,
+              [=](QString error, QByteArray detail) {
+                emit errorOccured("Network", error);
+              });
       c->connectWithToken(account.userId(), accessToken, account.deviceId());
     }
   }

src/spectralroom.cpp

@@ -14,6 +14,8 @@
 SpectralRoom::SpectralRoom(Connection* connection, QString roomId,
                            JoinState joinState)
     : Room(connection, std::move(roomId), joinState) {
+  connect(this, &Room::avatarChanged, this,
+          &SpectralRoom::inheritedAvatarChanged);
   connect(this, &SpectralRoom::notificationCountChanged, this,
           &SpectralRoom::countChanged);
   connect(this, &SpectralRoom::highlightCountChanged, this,

src/spectralroom.h

@@ -10,7 +10,7 @@ using namespace QMatrixClient;
 
 class SpectralRoom : public Room {
   Q_OBJECT
-  Q_PROPERTY(QImage avatar READ getAvatar NOTIFY avatarChanged)
+  Q_PROPERTY(QImage avatar READ getAvatar NOTIFY inheritedAvatarChanged)
   Q_PROPERTY(bool hasUsersTyping READ hasUsersTyping NOTIFY typingChanged)
   Q_PROPERTY(QString usersTyping READ getUsersTyping NOTIFY typingChanged)
   Q_PROPERTY(QString cachedInput READ cachedInput WRITE setCachedInput NOTIFY
@@ -74,6 +74,7 @@ class SpectralRoom : public Room {
  signals:
   void cachedInputChanged();
   void busyChanged();
+  void inheritedAvatarChanged();  // https://bugreports.qt.io/browse/QTBUG-7684
 
  public slots:
   void chooseAndUploadFile();