public FocusChangeDirection GetFocusChangeDirection(Focusable currentFocusable, EventBase e)
{
bool flag = e == null;
if (flag)
{
throw new ArgumentNullException("e");
}
bool flag2 = e.eventTypeId == EventBase <MouseDownEvent> .TypeId();
FocusChangeDirection result;
if (flag2)
{
Focusable focusable = e.target as Focusable;
bool flag3 = focusable != null;
if (flag3)
{
result = VisualElementFocusChangeTarget.GetPooled(focusable);
return(result);
}
}
bool flag4 = currentFocusable is IMGUIContainer && e.imguiEvent != null;
if (flag4)
{
result = FocusChangeDirection.none;
}
else
{
result = VisualElementFocusRing.GetKeyDownFocusChangeDirection(e);
}
return(result);
}
public NavigateFocusRing(VisualElement root)
{
m_Root = root;
m_Ring = new VisualElementFocusRing(root);
}
public Focusable GetNextFocusable(Focusable currentFocusable, FocusChangeDirection direction)
{
bool flag = direction == FocusChangeDirection.none || direction == FocusChangeDirection.unspecified;
Focusable result;
if (flag)
{
result = currentFocusable;
}
else
{
VisualElementFocusChangeTarget visualElementFocusChangeTarget = direction as VisualElementFocusChangeTarget;
bool flag2 = visualElementFocusChangeTarget != null;
if (flag2)
{
result = visualElementFocusChangeTarget.target;
}
else
{
this.DoUpdate();
bool flag3 = this.m_FocusRing.Count == 0;
if (flag3)
{
result = null;
}
else
{
int num = 0;
bool flag4 = direction == VisualElementFocusChangeDirection.right;
if (flag4)
{
num = this.GetFocusableInternalIndex(currentFocusable) + 1;
bool flag5 = currentFocusable != null && num == 0;
if (flag5)
{
result = VisualElementFocusRing.GetNextFocusableInTree(currentFocusable as VisualElement);
return(result);
}
bool flag6 = num == this.m_FocusRing.Count;
if (flag6)
{
num = 0;
}
while (this.m_FocusRing[num].m_Focusable.delegatesFocus)
{
num++;
bool flag7 = num == this.m_FocusRing.Count;
if (flag7)
{
result = null;
return(result);
}
}
}
else
{
bool flag8 = direction == VisualElementFocusChangeDirection.left;
if (flag8)
{
num = this.GetFocusableInternalIndex(currentFocusable) - 1;
bool flag9 = currentFocusable != null && num == -2;
if (flag9)
{
result = VisualElementFocusRing.GetPreviousFocusableInTree(currentFocusable as VisualElement);
return(result);
}
bool flag10 = num < 0;
if (flag10)
{
num = this.m_FocusRing.Count - 1;
}
while (this.m_FocusRing[num].m_Focusable.delegatesFocus)
{
num--;
bool flag11 = num == -1;
if (flag11)
{
result = null;
return(result);
}
}
}
}
result = this.m_FocusRing[num].m_Focusable;
}
}
}
return(result);
}