/// <summary>
/// Executes the first command and then when it completes executes the second command. The second command
/// expects TInput as an argument, and the returned command also expects TInput when executed.
/// </summary>
/// <param name="first">The command to execute first</param>
/// <param name="second">The command to execute second</param>
/// <returns>The new command that executes both commands in turn.</returns>
public static IRxCommand <TInput> Combine <TInput>(this IRxCommand first, IRxCommand <TInput> second)
{
return(RxCommand.Create <TInput>(async x =>
{
await first.InvokeAsync();
await second.InvokeAsync(x);
}));
}
/// <summary>
/// Executes the first command and then when it completes executes the second command.
/// </summary>
/// <param name="first">The command to execute first</param>
/// <param name="second">The command to execute second</param>
/// <returns>The new command that executes both commands in turn.</returns>
public static IRxCommand Combine(this IRxCommand first, IRxCommand second)
{
return(RxCommand.Create(async() =>
{
await first.InvokeAsync();
await second.InvokeAsync();
}));
}
/// <summary>
/// Converts an IRxFunction<TOutput> into an IRxCommand. This can be useful with methods such as
/// Combine which expect particular types of commands that may not fit the command you have in order to
/// get the behavor you otherwise expect. The value returned from the function is simply discarded.
/// </summary>
public static IRxCommand <TInput> AsCommand <TInput, TOutput>(this IRxFunction <TInput, TOutput> function)
{
return(RxCommand.Create <TInput>(x => function.InvokeAsync(x)));
}
/// <summary>
/// Converts an IRxFunction<TOutput> into an IRxCommand. This can be useful with methods such as
/// Combine which expect particular types of commands that may not fit the command you have in order to
/// get the behavor you otherwise expect. The value returned from the function is simply discarded.
/// </summary>
public static IRxCommand AsCommand <TOutput>(this IRxFunction <TOutput> function)
{
return(RxCommand.Create(() => function.InvokeAsync()));
}
/// <summary>
/// Converts an unparameterized command into a command parameterized by Unit. This can be useful with methods such
/// as Combine which expect particular types of commands that may not fit the command you have in order to
/// get the behavor you otherwise expect.
/// </summary>
public static IRxCommand <Unit> AsParameterized(this IRxCommand command)
{
return(RxCommand.Create <Unit>(_ => command.InvokeAsync()));
}