Improved Keyboard/Gamepad Input & Widget Focus Handling for UMG Menus

[Ryan_Darcey]

@Katarak13

For me, Focus means Hovered. same thing.

100% agree.

@Katarak13

So I edited SWidget.h to do that was a very simple change.

/** @return True if this widget hovered */
virtual bool IsHovered() const
{
return bIsHovered || HasKeyboardFocus();
}

Keyboard focus is the same for gamepad as well so this works. My buttons then get the Hovered Style through navigation provided I set the User Focus to a button.

Brilliant! This is an excellent quick fix/hack for solving the “focused” styling problem. You inspired me to make this change in SWidget.cpp, as well, to make focus events trigger hover events.

!!!WARNING!!! I know, hacky af…but works for my use case and is what I’ll be doing until Epic finds a cleaner solution.

FReply SWidget::OnFocusReceived(const FGeometry& MyGeometry, const FFocusEvent& InFocusEvent)
{
    //-----------------------------
    // CUSTOM CODE
    FPointerEvent MouseEvent;
    OnMouseEnter(MyGeometry, MouseEvent);
    //-----------------------------

    return FReply::Unhandled();
}

void SWidget::OnFocusLost(const FFocusEvent& InFocusEvent)
{
    //-----------------------------
    // CUSTOM CODE
    FPointerEvent MouseEvent;
    OnMouseLeave(MouseEvent);
    //-----------------------------
}

@Katarak13

in the Player controller I created an array of Widgets in a sort of stack (it’s not really lifo because you could remove something that’s not at index 0). and this is called by MyUserWidget. This allows me to automatically set the user focus back to the last focussed objects if I close a popup, or if I click outside the area with the mouse. We assume the player doesn’t want to see focus at this point and focus is lost so everything works for them.

I’m doing something very similar to handle navigating between menus and losing focus due to clicking outside the window.