private void OpenPopupFor(MenuBarTopButton button)
{
_popupVBox.RemoveAllChildren();
var menu = button.Menu;
ConstructMenu(menu, _popupVBox);
var globalPos = button.GlobalPosition;
globalPos += new Vector2(0, button.Height);
_popup.Open(UIBox2.FromDimensions(globalPos, _popupVBox.Size));
// Set this after running open so that if this is called from MouseEntered,
// It won't get set to false by Open() closing the popup to move it.
_popupOpen = true;
}
private void AddMenu(Menu menu)
{
var button = new MenuBarTopButton(menu);
_menus.Add(menu);
_buttons.Add(button);
_hBox.AddChild(button);
button.OnMouseButtonDown += _ => OpenPopupFor(button);
button.OnMouseEntered += _ =>
{
if (_popupOpen)
{
OpenPopupFor(button);
}
};
}