internal void HandleFlyoutStatusChange(Flyout flyout, CushWindow parentWindow)
{
if (flyout == null || parentWindow == null)
{
return;
}
ReorderZIndices(flyout);
var visibleFlyouts = GetFlyouts(Items).Where(i => i.IsOpen).OrderBy(Panel.GetZIndex);
parentWindow.HandleFlyoutStatusChange(flyout, visibleFlyouts);
}
private void ReorderZIndices(Flyout lastChanged)
{
var openFlyouts = GetFlyouts(Items).Where(i => i.IsOpen && i != lastChanged).OrderBy(Panel.GetZIndex);
var index = 0;
foreach (var openFlyout in openFlyouts)
{
Panel.SetZIndex(openFlyout, index);
index++;
}
if (lastChanged.IsOpen)
{
Panel.SetZIndex(lastChanged, index);
}
}
private void AttachHandlers(Flyout flyout)
{
var isOpenNotifier = new PropertyChangeNotifier(flyout, Flyout.IsOpenProperty);
isOpenNotifier.ValueChanged += FlyoutStatusChanged;
flyout.IsOpenPropertyChangeNotifier = isOpenNotifier;
var themeNotifier = new PropertyChangeNotifier(flyout, Flyout.ThemeProperty);
themeNotifier.ValueChanged += FlyoutStatusChanged;
flyout.ThemePropertyChangeNotifier = themeNotifier;
}