/// <summary>
/// Logs in the user with the specified provider.
/// </summary>
/// <param name="provider">User credentials provider.</param>
private void LoginWith(string provider)
{
// If already logging in
if (this.IsBusy)
{
return;
}
// Remove OAUTH token
Settings.Instance.Remove(Settings.OauthToken);
// If launch URI delegate is provided
if (((App)Application.Current).LaunchUriDelegate != null)
{
// Get the authorization URI from the server
this.IsBusy = true;
WebHelper.SendAsync(
Uris.GetAuthorizationUri(provider),
null,
this.ProcessLoginWithResult,
() => this.IsBusy = false);
}
else
{
// Display the not implemented error
App.DisplayAlert(
Localization.ErrorDialogTitle,
Localization.ErrorNotImplemented,
Localization.DialogDismiss);
}
}