How to draw NSPopupButtonCell highlighted image - macos

Question

I have NSPopupButton inside NSToolbar that has borderder = false which is having some color burn blend when highlighted. If I use bordered = true the image is drawn with nice dark overlay.
I am trying to achieve to draw highlighted state the same way as it is in bordered=true
PS: NSButtonCell with bordered = false works out of the box.
I can achieve the behaviour by having bordered = true and overriding drawBezel and do nothing there but I want to know
Things I tried:
highlightsBy
interiorBackgroundStyle
setCellAttribute
-
class ToolbarPopUpButtonCell : NSPopUpButtonCell {
override var isHighlighted: Bool {
get { return true }
set { super.isHighlighted = newValue }
}
override func drawImage(withFrame cellFrame: NSRect, in controlView: NSView) {
super.drawImage(withFrame: cellFrame, in: controlView)
}
//used in case bordered = true so we do nothing
override func drawBezel(withFrame frame: NSRect, in controlView: NSView) {
}
//doesn't work
override var interiorBackgroundStyle: NSView.BackgroundStyle
{
return .raised
}
}
class ToolbarPopUpButton: NSPopUpButton {
override func awakeFromNib() {
cell?.setCellAttribute(.cellLightsByBackground, to: 1)
}
override var intrinsicContentSize: NSSize {
return NSMakeSize(32 + 5, 32)
}
}
Notice the image on right which works for bordered = false (NSButtonCell)

Answer 1

The only hack I found is to draw a subsitute cell. Still seeking a better solution.
- (void)drawImageWithFrame:(NSRect)cellFrame inView:(NSView *)controlView
{
NSImage *image = [self image];
NSButtonCell *swapCell = [[NSButtonCell alloc] initImageCell:image];
[swapCell setHighlighted:[self isHighlighted]];
[swapCell drawImage:image withFrame:cellFrame inView:controlView];
}