37 lines
1.4 KiB
C#
37 lines
1.4 KiB
C#
using System;
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using System.Threading;
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using System.Threading.Tasks;
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namespace Avalonia.Threading
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{
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internal static class AvaloniaThreadUtils
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{
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public static TResult Invoke<TResult>(this Dispatcher dispatcher, Func<TResult> function, DispatcherPriority dispatcherPriority = DispatcherPriority.Normal)
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=> WaitOnDispatcherAndGetResult(dispatcher.InvokeAsync(function, dispatcherPriority), dispatcher);
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public static void Invoke(this Dispatcher dispatcher, Action action, DispatcherPriority dispatcherPriority = DispatcherPriority.Normal)
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=> WaitOnDispatcher(dispatcher.InvokeAsync(action, dispatcherPriority), dispatcher);
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public static TResult WaitOnUIAndGetResult<TResult>(this Task<TResult> task)
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=> WaitOnDispatcherAndGetResult(task, Dispatcher.UIThread);
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public static void WaitOnUI(this Task task)
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=> WaitOnDispatcher(task, Dispatcher.UIThread);
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public static TResult WaitOnDispatcherAndGetResult<TResult>(this Task<TResult> task, Dispatcher dispatcher)
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{
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using var source = new CancellationTokenSource();
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task.ContinueWith(t => source.Cancel(), TaskScheduler.FromCurrentSynchronizationContext());
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dispatcher.MainLoop(source.Token);
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return task.Result;
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}
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public static void WaitOnDispatcher(this Task task, Dispatcher dispatcher)
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{
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using var source = new CancellationTokenSource();
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task.ContinueWith(t => source.Cancel(), TaskScheduler.FromCurrentSynchronizationContext());
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dispatcher.MainLoop(source.Token);
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}
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}
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}
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