public virtual MyGuiControlBase GetNextFocusControl(MyGuiControlBase currentFocusControl, bool forwardMovement)
{
int currentIdx = Elements.IndexOf(currentFocusControl);
if (currentIdx == -1 && !forwardMovement)
{
currentIdx = Elements.Count;
}
int i = (forwardMovement) ? (currentIdx + 1)
: (currentIdx - 1);
int step = (forwardMovement) ? +1 : -1;
while ((forwardMovement && i < Elements.Count) ||
(!forwardMovement && i >= 0))
{
if (MyGuiScreenBase.CanHaveFocusRightNow(Elements[i]))
{
return(Elements[i]);
}
i += step;
}
return(Owner.GetNextFocusControl(this, forwardMovement));
}
public override MyGuiControlBase GetNextFocusControl(MyGuiControlBase currentFocusControl, bool forwardMovement)
{
Debug.Assert(currentFocusControl != null);
var visibleControls = Controls.GetVisibleControls();
// Pretend that both Controls and Elements are in single array.
int totalCount = visibleControls.Count + Elements.Count;
int idxCurrent = visibleControls.IndexOf(currentFocusControl);
if (idxCurrent == -1)
{
idxCurrent = Elements.IndexOf(currentFocusControl);
if (idxCurrent != -1)
{
idxCurrent += visibleControls.Count;
}
}
if (!forwardMovement && idxCurrent == -1)
{
idxCurrent = totalCount;
}
// Single loop for both forward and backward movement, but terminating condition would be pain to write in for loop.
int i = (forwardMovement) ? (idxCurrent + 1)
: (idxCurrent - 1);
int step = (forwardMovement) ? +1 : -1;
while ((forwardMovement && i < totalCount) ||
(!forwardMovement && i >= 0))
{
int idx = i;
if (idx < visibleControls.Count)
{
var visibleControl = visibleControls[idx];
if (MyGuiScreenBase.CanHaveFocusRightNow(visibleControl))
{
if (visibleControl is MyGuiControlParent || !visibleControl.IsActiveControl)
{
return(visibleControl.GetFocusControl(forwardMovement));
}
else
{
return(visibleControl);
}
}
}
else
{
idx -= visibleControls.Count;
if (MyGuiScreenBase.CanHaveFocusRightNow(Elements[idx]))
{
return(Elements[idx]);
}
}
i += step;
}
return(Owner.GetNextFocusControl(this, forwardMovement));
}
