/// <summary>
/// Occurs when the button is clicked.
/// </summary>
/// <param name="sender">The sender of the event.</param>
/// <param name="e">The <see cref="RoutedEventArgs"/> that contains the event data.</param>
private void OnStartProcessingButtonClick(object sender, RoutedEventArgs e)
{
if (!backgroundWorker.IsBusy)
{
// Show the overlay
WindowChrome.SetIsOverlayVisible(this, true);
// Start the background worker
backgroundWorker.RunWorkerAsync();
}
}
/////////////////////////////////////////////////////////////////////////////////////////////////////
// PUBLIC PROCEDURES
/////////////////////////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Occurs when a key is pressed while the control has focus.
/// </summary>
/// <param name="e">A <see cref="KeyEventArgs"/> that contains the event data.</param>
protected override void OnKeyDown(KeyEventArgs e)
{
if (e == null)
{
throw new ArgumentNullException("e");
}
// Call the base method
base.OnKeyDown(e);
if (!e.Handled)
{
switch (e.Key)
{
case Key.Escape:
// Ensure the overlay is closed when Esc is pressed
if (WindowChrome.GetIsOverlayVisible(window))
{
WindowChrome.SetIsOverlayVisible(window, false);
}
break;
}
}
}
/// <summary>
/// Occurs when the background worker has completed work.
/// </summary>
/// <param name="sender">The sender of the event.</param>
/// <param name="e">The <see cref="DoWorkEventArgs"/> that contains the event data.</param>
private void OnBackgroundWorkerRunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
// Hide the overlay
WindowChrome.SetIsOverlayVisible(this, false);
}
