internal static bool HandleNavigationButtons(IGamepadControllable Instance, Buttons?PressedButtons, Rectangle?CurrentSlotPosition)
{
bool IsFocused = true;
foreach (NavigationDirection Direction in Enum.GetValues(typeof(NavigationDirection)).Cast <NavigationDirection>())
{
// Handle navigating a single slot at a time
bool HandleSingleSlotNavigation;
if (PressedButtons.HasValue)
{
HandleSingleSlotNavigation = IsMatch(PressedButtons.Value, NavigateSingleButtons[Direction]);
}
else
{
HandleSingleSlotNavigation = InputHandler.IsNavigationButtonPressed(Direction) && DateTime.Now.Subtract(InputHandler.NavigationButtonsPressedTime[Direction]).TotalMilliseconds >= Current.NavigationRepeatInitialDelay;
}
if (HandleSingleSlotNavigation)
{
NavigationWrappingMode HorizontalWrapping = NavigationWrappingMode.AllowWrapToSame;
NavigationWrappingMode VerticalWrapping = NavigationWrappingMode.AllowWrapToSame;
bool HasNeighbor = Instance.TryGetMenuNeighbor(Direction, out IGamepadControllable Neighbor);
if (HasNeighbor)
{
if (Direction == NavigationDirection.Left || Direction == NavigationDirection.Right)
{
HorizontalWrapping = NavigationWrappingMode.NoWrap;
}
else
{
VerticalWrapping = NavigationWrappingMode.NoWrap;
}
}
if (!Instance.TryNavigate(Direction, HorizontalWrapping, VerticalWrapping))
{
// If we're unable to continue moving the cursor in the desired direction,
// then focus the gamepad controls on the appropriate neighboring UI element
if (HasNeighbor)
{
NavigationDirection StartingSide = GetOppositeDirection(Direction);
if (Neighbor.TryNavigateEnter(StartingSide, CurrentSlotPosition))
{
IsFocused = false;
}
}
}
}
// Handle navigating across an entire UI element, or to the end of the current element's boundary
if (PressedButtons.HasValue && IsMatch(PressedButtons.Value, NavigateMultipleButtons[Direction]))
{
bool Handled = false;
// Try to change focus to the neighboring UI element in this direction
bool HasNeighbor = Instance.TryGetMenuNeighbor(Direction, out IGamepadControllable Neighbor);
if (HasNeighbor)
{
NavigationDirection StartingSide = GetOppositeDirection(Direction);
if (Neighbor.TryNavigateEnter(StartingSide, CurrentSlotPosition))
{
Handled = true;
IsFocused = false;
}
}
// Navigate to the end of this element's boundary
if (!Handled)
{
while (Instance.TryNavigate(Direction, NavigationWrappingMode.NoWrap, NavigationWrappingMode.NoWrap))
{
}
}
}
}
return(IsFocused);
}
