static void ProcessInputAction(IInputHandler handler, InputEvent action, double value, WindowState state)
{
var items = SelectionManager.SelectedItems();
switch (action)
{
case InputEvent.None:
return;
case InputEvent.DragEnter:
handler.OnEnterDrag(items, state);
break;
case InputEvent.Drag:
handler.OnDrag(value, state);
break;
case InputEvent.DragExit:
handler.OnExitDrag();
break;
case InputEvent.KeyboardInput:
handler.OnSetValue(items, value, state);
break;
default:
return;
}
}