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1 | 1 | using System.Windows.Forms; |
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2 | 2 | using System; |
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3 | 3 | |
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4 | 4 | |
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5 | 5 | namespace Implab.Fx { |
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6 | 6 | public class ControlBoundPromise<T> : Promise<T> { |
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7 | 7 | readonly Control m_target; |
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8 | 8 | |
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9 | 9 | public ControlBoundPromise(Control target) { |
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10 | 10 | Safe.ArgumentNotNull(target, "target"); |
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11 | 11 | |
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12 | 12 | m_target = target; |
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13 | 13 | } |
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14 | 14 | |
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15 |
public ControlBoundPromise(Control target, IPromise parent |
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16 |
: base(parent |
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15 | public ControlBoundPromise(Control target, IPromise parent) | |
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16 | : base(parent) { | |
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17 | 17 | Safe.ArgumentNotNull(target, "target"); |
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18 | 18 | |
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19 | 19 | m_target = target; |
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20 | 20 | } |
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21 | 21 | |
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22 | 22 | protected override void InvokeHandler(HandlerDescriptor handler) { |
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23 | 23 | if (m_target.InvokeRequired) |
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24 | 24 | m_target.BeginInvoke(new Action<HandlerDescriptor>(base.InvokeHandler), handler); |
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25 | 25 | else |
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26 | 26 | base.InvokeHandler(handler); |
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27 | 27 | } |
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28 | 28 | } |
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29 | 29 | } |
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30 | 30 | |
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1 | 1 | using System; |
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2 | 2 | using System.Windows.Forms; |
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3 | 3 | using System.Threading; |
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4 | 4 | |
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5 | 5 | namespace Implab.Fx |
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6 | 6 | { |
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7 | 7 | public static class PromiseHelpers |
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8 | 8 | { |
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9 | 9 | /// <summary> |
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10 | 10 | /// Перенаправляет обработку обещания в поток указанного элемента управления. |
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11 | 11 | /// </summary> |
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12 | 12 | /// <typeparam name="T">Тип результата обещания</typeparam> |
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13 | 13 | /// <param name="that">Исходное обещание</param> |
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14 | 14 | /// <param name="ctl">Элемент управления</param> |
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15 | 15 | /// <returns>Новое обещание, обработчики которого будут выполнены в потоке элемента управления.</returns> |
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16 | 16 | /// <exception cref="ArgumentNullException">Параметр не может быть <c>null</c>.</exception> |
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17 | 17 | /// <example> |
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18 | 18 | /// client |
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19 | 19 | /// .Get("description.txt") // returns a promise |
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20 | 20 | /// .DispatchToControl(m_ctl) // handle the promise in the thread of the control |
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21 | 21 | /// .Then( |
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22 | 22 | /// description => m_ctl.Text = description // now it's safe |
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23 | 23 | /// ) |
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24 | 24 | /// </example> |
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25 | 25 | public static IPromise<T> DispatchToControl<T>(this IPromise<T> that, Control ctl) |
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26 | 26 | { |
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27 | 27 | Safe.ArgumentNotNull(that, "that"); |
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28 | 28 | Safe.ArgumentNotNull(ctl, "ctl"); |
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29 | 29 | |
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30 |
var directed = new ControlBoundPromise<T>(ctl,that |
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30 | var directed = new ControlBoundPromise<T>(ctl,that); | |
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31 | 31 | |
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32 | 32 | that.Last( |
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33 | 33 | directed.Resolve, |
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34 | 34 | directed.Reject, |
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35 | 35 | directed.Cancel |
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36 | 36 | ); |
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37 | 37 | |
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38 | 38 | return directed; |
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39 | 39 | } |
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40 | 40 | } |
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41 | 41 | } |
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