/// <summary>
/// Observe the settings panel activation and adds command.
/// </summary>
/// <param name="observer"></param>
/// <returns></returns>
public IDisposable Subscribe(IObserver <Unit> observer)
{
return(Observable.Defer(() =>
{
var settingsPane = SettingsPane.GetForCurrentView();
return Observable.FromEventPattern <TypedEventHandler <SettingsPane, SettingsPaneCommandsRequestedEventArgs>, SettingsPaneCommandsRequestedEventArgs>(
h => settingsPane.CommandsRequested += h,
h => settingsPane.CommandsRequested -= h,
_dispatcher);
})
.Do(args =>
{
var settingsArgs = args.EventArgs;
foreach (var commandDefinition in _commandDefinitions.Where(d => d.Command(_viewModel.Value).CanExecute(null)))
{
CommandDefinition definition = commandDefinition;
settingsArgs.Request.ApplicationCommands.Add(new SettingsCommand(
commandDefinition.Id,
_resources.Get(commandDefinition.TitleKey),
command => definition.Command(_viewModel.Value).Execute(null)));
}
})
.SelectUnit()
.Subscribe(observer));
}