RemoteDialog: Fix button states after adding remote

As adding a remote leads to a model reset which does not
trigger the selectionChanged signal, all buttons were
enabled despite no remote was selected.

Change-Id: I2f752fcf5f1830728d1bcf9810ca4648bd2f287b
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/git/remotedialog.cpp

@@ -145,6 +145,8 @@ RemoteDialog::RemoteDialog(QWidget *parent) :
 
     connect(m_ui->remoteView->selectionModel(), &QItemSelectionModel::selectionChanged,
             this, &RemoteDialog::updateButtonState);
+    connect(m_remoteModel, &RemoteModel::refreshed,
+            this, &RemoteDialog::updateButtonState);
 
     updateButtonState();
 }

src/plugins/git/remotemodel.cpp

@@ -199,6 +199,7 @@ bool RemoteModel::refresh(const FilePath &workingDirectory, QString *errorMessag
         m_remotes.push_back(newRemote);
     }
     endResetModel();
+    emit refreshed();
     return true;
 }
 

src/plugins/git/remotemodel.h

@@ -65,6 +65,9 @@ public:
     Utils::FilePath workingDirectory() const;
     int findRemoteByName(const QString &name) const;
 
+signals:
+    void refreshed();
+
 protected:
     class Remote {
     public: