/// <summary>
/// Initializes a new instance of the <see cref="ConcurrencyCommandBase"/> class.
/// </summary>
/// <param name="execute">The execute.</param>
/// <param name="canExecuteSubject">The can execute subject.</param>
/// <param name="completed">The completed.</param>
/// <param name="error">The error.</param>
/// <param name="cancel">The cancel.</param>
/// <exception cref="ArgumentNullException">canExecuteSubject</exception>
protected ConcurrencyCommandBase(
[NotNull] Action <T, CancellationToken> execute,
[NotNull] ICanExecuteSubject canExecuteSubject,
[CanBeNull] Action completed = null,
[CanBeNull] Action <Exception> error = null,
[CanBeNull] Action cancel = null)
{
this.execute = execute;
if (canExecuteSubject == null)
{
throw new ArgumentNullException(nameof(canExecuteSubject));
}
this.canExecute = (t) => canExecuteSubject.CanExecute();
this.completed = completed;
this.error = error;
this.cancel = cancel;
this.cancelCommand = new DirectCommand(this.Cancel, () => this.IsExecuting);
}
/// <summary>
/// Initializes a new instance of the <see cref="ConcurrencyCommandBase"/> class.
/// </summary>
/// <param name="execute">The execute.</param>
/// <param name="canExecuteSubject">The can execute subject.</param>
/// <param name="completed">The completed.</param>
/// <param name="error">The error.</param>
/// <param name="cancel">The cancel.</param>
/// <exception cref="ArgumentNullException">canExecuteSubject</exception>
protected ConcurrencyAsyncCommandBase(
[NotNull] Func <T, CancellationToken, Task> execute,
[NotNull] ICanExecuteSubject canExecuteSubject,
[CanBeNull] Func <Task> completed = null,
[CanBeNull] Func <Exception, Task> error = null,
[CanBeNull] Func <Task> cancel = null)
{
this.execute = execute;
if (canExecuteSubject == null)
{
throw new ArgumentNullException(nameof(canExecuteSubject));
}
this.canExecute = _ => canExecuteSubject.CanExecute();
this.completed = completed;
this.error = error;
this.cancel = cancel;
this.Dispatcher = Dispatcher.CurrentDispatcher;
this.cancelCommand = new DirectCommand(this.Cancel, () => this.IsExecuting);
}
