/// <summary>
/// 戻り値のコマンドが実行されるまで待つよう、<see cref="Channel{TMessage}.SetHandler{T}(AsyncChannelHandler{TMessage})"/> を設定する。
/// </summary>
/// <typeparam name="TMessage"></typeparam>
/// <typeparam name="T"></typeparam>
/// <typeparam name="TResponse"></typeparam>
/// <param name="channel"></param>
/// <returns></returns>
public static ICommand SetCommand <TMessage, T, TResponse>(this Channel <TMessage> channel)
where T : TMessage, IResponsiveMessage <TResponse>
{
var c = new ObservableCommand <TResponse>();
channel.SetHandler <T>(async m => m.Response = await c.FirstAsync().ToTask());
return(c);
}
/// <summary>
/// 戻り値のコマンドが実行されるまで待つよう、<see cref="Channel{TMessage}.SetHandler{T}(AsyncChannelHandler{TMessage})"/> を設定する。
/// </summary>
/// <typeparam name="TMessage"></typeparam>
/// <typeparam name="T"></typeparam>
/// <param name="channel"></param>
/// <returns></returns>
public static ICommand SetCommand <TMessage, T>(this Channel <TMessage> channel)
where T : TMessage
{
var c = new ObservableCommand();
channel.SetHandler <T>(m => c.FirstAsync().ToTask());
return(c);
}