private async Task HandlePreviousExecutionState(ApplicationExecutionState previousExecutionState)
{
if (previousExecutionState == ApplicationExecutionState.Terminated ||
previousExecutionState == ApplicationExecutionState.ClosedByUser ||
previousExecutionState == ApplicationExecutionState.NotRunning)
{
var successfulRestoration = true;
try
{
await _toxModel.RestoreDataAsync();
}
catch
{
successfulRestoration = false;
}
// If the restoration was unsuccessful, it means that we are starting up the app the
// very firs time or something went wrong restoring data.
// So we save the current Tox instance (newly created, not loaded) as the default one.
if (!successfulRestoration)
{
await _toxModel.SaveDataAsync();
}
if (previousExecutionState != ApplicationExecutionState.NotRunning)
// We only have to restore session state in the other two cases.
// See: https://msdn.microsoft.com/en-us/library/ie/windows.applicationmodel.activation.applicationexecutionstate
{
try
{
await SuspensionManager.RestoreAsync();
}
catch (SuspensionManagerException)
{
// Something went wrong restoring state.
// Assume there is no state and continue.
}
}
}
}
