protected override void OnClose()
{
if (!IsOpen)
{
return;
}
Popup.IsOpen = false;
ItemCoordinator.OnMenuVisibilityChanged();
Popup.Content = null;
if (_closed != null)
{
_closed(this, EventArgs.Empty);
}
}
private void Open()
{
if (!HasItems || IsOpen)
{
return;
}
this.IsTabStop = true;
Popup.Content = this;
UpdateLayout();
var strategy = MenuPositioningStrategy;
if (strategy != null)
{
strategy.BeforeOpenPopup(this, Popup);
}
Popup.IsOpen = true;
this.Focus();
ItemCoordinator.OnMenuVisibilityChanged();
UpdateLayout();
if (strategy != null)
{
strategy.AfterOpenPopup(this, Popup);
}
if (_opened != null)
{
_opened(this, EventArgs.Empty);
}
}