90 строки
2.5 KiB
C#
90 строки
2.5 KiB
C#
//
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// Timeout.cs
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//
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// Author:
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// Carlos Alberto Cortez <calberto.cortez@gmail.com>
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//
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// Copyright (c) 2011 Carlos Alberto Cortez
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Windows;
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using System.Windows.Threading;
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namespace Xwt.WPFBackend
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{
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static class Timeout
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{
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public static uint Add (Func<bool> action, TimeSpan interval, Dispatcher dispatcher)
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{
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var timer = new DispatcherTimer (DispatcherPriority.Normal, dispatcher);
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timer.Interval = interval;
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timer.Tick += delegate {
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if (!action ())
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timer.IsEnabled = false;
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};
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uint id = RegisterTimer (timer);
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timer.IsEnabled = true;
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return id;
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}
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public static void CancelTimeout (uint id)
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{
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var timer = UnregisterTimer (id);
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if (timer != null)
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timer.IsEnabled = false;
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}
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static uint RegisterTimer (DispatcherTimer timer)
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{
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lock (locker) {
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while (timers.ContainsKey (counter))
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counter++;
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timers [counter] = timer;
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return counter++;
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}
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}
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static DispatcherTimer UnregisterTimer (uint id)
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{
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lock (locker) {
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if (!timers.ContainsKey (id))
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return null;
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var timer = timers [id];
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timers.Remove (id);
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return timer;
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}
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}
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static Dictionary<uint, DispatcherTimer> timers = new Dictionary<uint, DispatcherTimer> ();
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static uint counter;
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static object locker = new object ();
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}
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}
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