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kotlinlang

Screenshot 2024-03-24 at 12.30.50.png

Is there a way on Mac to remove the traffic lights (close, minimize, maximize), but keep the window roundness and shadows?

I tried setting the window to undecorated and even though it removes the buttons, it also removes the shadows and window corner radius

i just set both `undecorated` and `transparent` to true and wrap everything in a surface then i can control the shadow and radius throug the surface

```    Window(
        onCloseRequest = ::exitApplication,
        undecorated = true,
        transparent = true
    ){
        Surface(
            modifier = Modifier
                .fillMaxSize()
                .padding(5.dp)
                .shadow(3.dp, RoundedCornerShape(10.dp)),
            color = MaterialTheme.colorScheme.surface,
            shape = RoundedCornerShape(10.dp),
            elevation = 40.dp
        ) {
            WindowDraggableArea {
            App()
            }
        }
    }```

image.png

I'm doing the same thing as above. You'll have to make your own titlebar, but thats very easy with WindowDraggableArea.

that's not ideal because the shadows don't look the same. native windows change the shadow according to the window being focused or not.

So there's focus listeners for the window object that you could just change the shadow depth based on a state.

If you want to replicate 100% the original system window styling minus the titlebar then I remember coming across a way you could do it by interfacing with the macos WM via JNI. Let me see if I can find it again.

<https://github.com/JetBrains/compose-multiplatform/issues/1179> its in this old GH issue.

that's interesting. never used jni though. how do i call the objective c code from kotlin?