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implab » ImplabNet
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fixed promise chaining behavior, the error handler doesn't handle result or cancellation handlers exceptions these exceptions are propagated to the next handlers.
fixed promise chaining behavior, the error handler doesn't handle result or cancellation handlers exceptions these exceptions are propagated to the next handlers.
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PromiseHelpers.cs
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/ Implab.Fx / PromiseHelpers.cs
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using System;
using System.Windows.Forms;
using System.Threading;
namespace Implab.Fx
{
public static class PromiseHelpers
{
/// <summary>
/// Перенаправляет обработку обещания в поток указанного элемента управления.
/// </summary>
/// <typeparam name="T">Тип результата обещания</typeparam>
/// <param name="that">Исходное обещание</param>
/// <param name="ctl">Элемент управления</param>
/// <returns>Новое обещание, обработчики которого будут выполнены в потоке элемента управления.</returns>
/// <exception cref="ArgumentNullException">Параметр не может быть <c>null</c>.</exception>
/// <example>
/// client
/// .Get("description.txt") // returns a promise
/// .DispatchToControl(m_ctl) // handle the promise in the thread of the control
/// .Then(
/// description => m_ctl.Text = description // now it's safe
/// )
/// </example>
public static IPromise<T> DispatchToControl<T>(this IPromise<T> that, Control ctl)
{
Safe.ArgumentNotNull(that, "that");
Safe.ArgumentNotNull(ctl, "ctl");
var directed = new ControlBoundPromise<T>(ctl);
directed.On(that.Cancel, PromiseEventType.Cancelled);
that.On(
directed.Resolve,
directed.Reject,
directed.Cancel
);
return directed;
}
}
}