44 lines
1.3 KiB
C#
44 lines
1.3 KiB
C#
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/******************************************************************************/
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/* SlunkCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
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/* This work has been released under the CC0 1.0 Universal license! */
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/******************************************************************************/
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using System;
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using System.ComponentModel;
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namespace com.muldersoft.slunkcrypt.gui.utils
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{
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public interface INotifyBusyChanged : INotifyPropertyChanged
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{
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bool IsBusy { get; set; }
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}
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internal sealed class BusyManager : IDisposable
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{
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private volatile bool m_disposed = false;
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private readonly INotifyBusyChanged m_instance;
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public BusyManager(INotifyBusyChanged instance)
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{
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if (ReferenceEquals(m_instance = instance, null))
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{
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throw new ArgumentNullException();
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}
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if (m_instance.IsBusy)
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{
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throw new InvalidOperationException("Instance is busy!");
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}
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instance.IsBusy = true;
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}
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public void Dispose()
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{
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if (!m_disposed)
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{
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m_disposed = true;
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m_instance.IsBusy = false;
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}
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}
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}
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}
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