/// <summary>
/// Confirm the request
/// </summary>
/// <param name="tcs">Confirm task completion source</param>
internal void ConfirmRequest(ConfirmTaskCompletionSource tcs)
{
if (cancellationToken.IsCancellationRequested)
{
tcs.SetCanceled();
}
lock (confirmTaskLock)
{
currentTaskSource = tcs;
}
try
{
bool result = ConfirmWriter(string.Empty, tcs.Message, Resources.ConfirmCaption);
tcs.SetResult(result);
}
catch (Exception e)
{
tcs.SetException(e);
}
lock (confirmTaskLock)
{
currentTaskSource = null;
}
}
/// <summary>
/// Async confirmation.
/// *****Please note*****
/// Dead lock will happen if the main thread is blocked.
/// </summary>
/// <param name="message">Confirm message</param>
public Task <bool> ConfirmAsync(string message)
{
ConfirmTaskCompletionSource tcs = new ConfirmTaskCompletionSource(message);
ConfirmQueue.Value.Enqueue(tcs);
return(tcs.Task);
}
/// <summary>
/// Process all the confirmation request
/// </summary>
protected void ProcessConfirmRequest()
{
if (ConfirmQueue.IsValueCreated)
{
ConfirmTaskCompletionSource tcs = null;
while (ConfirmQueue.Value.TryDequeue(out tcs))
{
ConfirmRequest(tcs);
}
}
}
/// <summary>
/// Cancel the confirmation request
/// </summary>
public void CancelConfirmRequest()
{
ConfirmTaskCompletionSource tcs = null;
while (ConfirmQueue.Value.TryDequeue(out tcs))
{
tcs.SetCanceled();
}
lock (confirmTaskLock)
{
if (currentTaskSource != null)
{
currentTaskSource.SetCanceled();
}
currentTaskSource = null;
}
}