private void closeOverlay()
{
if (DesktopOverlayWindow != null && DesktopWindow != null && DesktopIconsControl != null)
{
// create mask image to show while the icons control is rendered on the desktop window
Image maskImage = new Image();
maskImage.Source = DesktopIconsControl?.GenerateBitmap(DesktopOverlayWindow.grid);
// add the mask image to the desktop
DesktopWindow.grid.Children.Add(maskImage);
// change toolbar owner
if (DesktopToolbar != null)
{
DesktopToolbar.Owner = DesktopWindow;
DesktopToolbar.SendToBottom();
}
// setup render callback to hide overlay and continue once image is rendered
renderOverlayFrames = 0;
CompositionTarget.Rendering += CloseOverlay_CompositionTarget_Rendering;
}
else if (DesktopOverlayWindow == null)
{
CairoLogger.Instance.Debug("DesktopManager: Desktop overlay already closed, ignoring");
}
else
{
CairoLogger.Instance.Warning("DesktopManager: Attempted to close desktop overlay using uninitialized properties");
}
}
private void OpenOverlay()
{
if (DesktopOverlayWindow == null && DesktopWindow != null && DesktopIconsControl != null)
{
DesktopOverlayWindow = new DesktopOverlay(this);
// create mask image to show while the icons control is rendered on the overlay window
Image maskImage = new Image
{
Source = DesktopIconsControl?.GenerateBitmap(DesktopWindow.grid)
};
// add the mask image to and show the overlay
DesktopOverlayWindow.grid.Children.Add(maskImage);
DesktopOverlayWindow.Show();
DesktopOverlayWindow.BringToFront();
// migrate the desktop icons control
DesktopWindow.grid.Children.Clear();
DesktopOverlayWindow.grid.Children.Add(DesktopIconsControl);
// remove the mask image
DesktopOverlayWindow.grid.Children.Remove(maskImage);
// change ToolBar owner
if (DesktopToolbar != null)
{
DesktopToolbar.Owner = DesktopOverlayWindow;
DesktopToolbar.BringToFront();
}
}
else if (DesktopOverlayWindow != null)
{
CairoLogger.Instance.Debug("DesktopManager: Desktop overlay already open, ignoring");
}
else
{
CairoLogger.Instance.Warning("DesktopManager: Attempted to show desktop overlay using uninitialized properties");
}
}