/// <summary>
/// Shows the window delayed by using the <see cref="MinimumDurationBeforeShow"/>.
/// </summary>
private void ShowWindow()
{
if (PleaseWaitWindow != null)
{
return;
}
PleaseWaitWindow = new PleaseWaitWindow();
PleaseWaitWindow.Text = _currentStatusText;
PleaseWaitWindow.MinWidth = double.IsNaN(_currentWindowWidth) ? 0d : _currentWindowWidth;
PleaseWaitWindow.Show();
while (!PleaseWaitWindow.IsOwnerDimmed)
{
// It's a bad practice to use this "equivalent" of DoEvents in WPF, but I don't see another choice
// to wait until the animation of the ShowWindow has finished without blocking the UI
PleaseWaitWindow.Dispatcher.Invoke(DispatcherPriority.Background, (ThreadStart) delegate { });
PleaseWaitWindow.UpdateLayout();
}
lock (_visibleStopwatchLock)
{
if (_visibleStopwatch == null)
{
_visibleStopwatch = new Stopwatch();
_visibleStopwatch.Start();
}
else
{
_visibleStopwatch.Reset();
_visibleStopwatch.Start();
}
}
}
/// <summary>
/// Updates the status text.
/// </summary>
/// <param name="text">The text.</param>
/// <param name="windowWidth">Width of the window.</param>
private void UpdateStatusText(string text, double windowWidth)
{
_currentStatusText = text;
_currentWindowWidth = windowWidth;
if (PleaseWaitWindow == null)
{
return;
}
if (!PleaseWaitWindow.Dispatcher.CheckAccess())
{
PleaseWaitWindow.Dispatcher.Invoke(new UpdateStatusTextDelegate(UpdateStatusText), new object[] { text, windowWidth });
return;
}
PleaseWaitWindow.Text = _currentStatusText;
PleaseWaitWindow.MinWidth = double.IsNaN(_currentWindowWidth) ? 0d : _currentWindowWidth;
PleaseWaitWindow.UpdateLayout();
}
/// <summary>
/// Hides the window.
/// </summary>
private void HideWindow()
{
if (PleaseWaitWindow == null)
{
return;
}
if (!PleaseWaitWindow.Dispatcher.CheckAccess())
{
PleaseWaitWindow.Dispatcher.Invoke((HideWindowDelegate)HideWindow, new object[] { });
return;
}
// Hide the window, this will start the animation to undimm the parent and then the please wait window
// will close itself
PleaseWaitWindow.Hide();
PleaseWaitWindow = null;
_currentStatusText = "Please wait...";
_currentWindowWidth = 0d;
}
/// <summary>
/// Shows the window delayed by using the <see cref="MinimumDurationBeforeShow"/>.
/// </summary>
private void ShowWindow()
{
if (PleaseWaitWindow != null)
{
return;
}
PleaseWaitWindow = new PleaseWaitWindow();
PleaseWaitWindow.Text = _currentStatusText;
PleaseWaitWindow.MinWidth = double.IsNaN(_currentWindowWidth) ? 0d : _currentWindowWidth;
PleaseWaitWindow.Show();
while (!PleaseWaitWindow.IsOwnerDimmed)
{
// It's a bad practice to use this "equivalent" of DoEvents in WPF, but I don't see another choice
// to wait until the animation of the ShowWindow has finished without blocking the UI
PleaseWaitWindow.Dispatcher.Invoke(DispatcherPriority.Background, (ThreadStart)delegate { });
PleaseWaitWindow.UpdateLayout();
}
lock (_visibleStopwatchLock)
{
if (_visibleStopwatch == null)
{
_visibleStopwatch = new Stopwatch();
_visibleStopwatch.Start();
}
else
{
_visibleStopwatch.Reset();
_visibleStopwatch.Start();
}
}
}
