protected void LoadBackend()
{
if (backend == null)
{
backend = OnCreateBackend();
if (backend == null)
{
throw new InvalidOperationException("No backend found for widget: " + GetType());
}
backend.Initialize(this);
OnBackendCreated();
}
}
private bool RetryBackend()
{
try {
if (backend != null && !backend.Configured)
{
backend.Cleanup();
backend.Initialize(preferences);
}
} catch (Exception e) {
Logger.Error("{0}", e.Message);
}
if (backend == null || !backend.Configured)
{
return(true);
}
else
{
return(false);
}
}
void InitializeBackend()
{
var node = availableBackendNodes.Single (
n => n.Id == currentBackend);
Logger.Info ("Using backend: {0} ({1})",
node.Data.Name, currentBackend);
backend = (IBackend)node.CreateInstance ();
backend.NeedsConfiguration += delegate {
if (BackendConfigurationRequested != null)
BackendConfigurationRequested (this, EventArgs.Empty);
};
backend.Initialized += delegate {
// load data
taskLists.LoadTaskLists (backend);
if (BackendInitialized != null)
BackendInitialized (this, EventArgs.Empty);
};
try {
backend.Initialize (preferences);
} catch (Exception ex) {
backend.Dispose ();
backend = null;
throw ex;
}
}
protected void LoadBackend()
{
if (usingCustomBackend) {
usingCustomBackend = false;
backend.Initialize (this);
OnBackendCreated ();
}
else if (backend == null) {
backend = OnCreateBackend ();
if (backend == null)
throw new InvalidOperationException ("No backend found for widget: " + GetType ());
backend.Initialize (this);
OnBackendCreated ();
}
}