protected override CredentialSettings UpdateCredential(string endPoint, string realm, CredentialSettings oldCredential)
{
// argument checks
Debug.Assert(endPoint != null);
Debug.Assert(realm != null); // may be empty
// oldCredential can be null
// state checks
Debug.Assert(this.app != null);
// clone the CredentialSettings
CredentialSettings credentialSettings;
if (oldCredential != null)
{
credentialSettings = CredentialSettings.Clone(oldCredential);
}
else
{
credentialSettings = new CredentialSettings();
// set default Persistence value to Session (i.e. volatile)
// The default value reverted because it was confusing.
// credentialSettings.Persistence = CredentialPersistence.Session;
}
credentialSettings.EndPoint = endPoint;
// ask user's credential
Func <CredentialSettings> callback = () => {
// get the MainWindow
// Note that the MainWindow can be accessed only from the GUI thread
// (that is, it must be gotten inside this callback)
Window mainWindow = this.app.MainWindow;
// prepare CredentialDialog
CredentialDialog dialog = new CredentialDialog(credentialSettings);
dialog.Title = realm;
if (mainWindow != null)
{
dialog.Owner = mainWindow;
}
// show the credential dialog and get user input
this.credentialDialog = dialog;
try {
return((dialog.ShowDialog() ?? false) ? dialog.CredentialSettings : null);
} finally {
this.credentialDialog = null;
}
};
return(this.app.Dispatcher.Invoke <CredentialSettings>(callback));
}
private void editCredentialButton_Click(object sender, RoutedEventArgs e)
{
try {
ListView listView = this.credentialListView;
// get the selected CredentialSettings
CredentialSettings originalItem = listView.SelectedItem as CredentialSettings;
if (originalItem == null)
{
// this item is not editable
return;
}
// create a clone of the selected CredentialSettings
CredentialSettings newItem = CredentialSettings.Clone(originalItem);
// prepare a validator
CredentialSettings[] items = listView.Items.Cast <CredentialSettings>().ToArray();
Func <CredentialSettings, string> validator = (s) => {
// check there is no credential which is for the same end point
CredentialSettings conflicting = items.Where(item => (item != originalItem && s.HasSameEndPoint(item))).FirstOrDefault();
return((conflicting == null) ? null : string.Format(Properties.Resources.SettingsWindow_Message_ConflictingCredential, s.EndPoint));
};
// edit the clone
CredentialDialog dialog = new CredentialDialog(newItem, validator, endPointEditable: true);
dialog.Owner = this;
if (dialog.ShowDialog() ?? false)
{
ReplaceSelectedListItemWith(listView, dialog.CredentialSettings);
}
} catch (Exception exception) {
ShowErrorDialog(exception.Message);
}
return;
}