private static void DeepGrabFocus(Widget widget)
{
Widget widget1 = (Widget)null;
foreach (Widget focussableWidget in DocumentWindow.GetFocussableWidgets(widget))
{
if (focussableWidget.HasFocus)
{
return;
}
if (widget1 == null)
{
widget1 = focussableWidget;
}
}
if (widget1 == null)
{
return;
}
widget1.GrabFocus();
}
private static IEnumerable <Widget> GetFocussableWidgets(Widget widget)
{
Container c = widget as Container;
if (widget.CanFocus)
{
yield return(widget);
}
if (c != null)
{
foreach (Widget widget1 in ((IEnumerable <Widget>)c.FocusChain).SelectMany <Widget, Widget>((Func <Widget, IEnumerable <Widget> >)(x => DocumentWindow.GetFocussableWidgets(x))).Where <Widget>((Func <Widget, bool>)(y => y != null)))
{
yield return(widget1);
}
}
}