Hello, How do I open a new Window in the middle of a @Composable function, and pause the execution w...

# compose-desktop

[Kebbin]

Hello,
How do I open a new Window in the middle of a @Composable function, and pause the execution while keeping the Window open until it is manually closed??
See thread for code. Thanks!

[Kebbin]

println("Opening settings window...")
    var showSettings by remember { mutableStateOf(true) }
    if (showSettings) {
        Window(
            state = rememberWindowState(
                width = 300.dp,
                height = 500.dp,
                position = WindowPosition(100.dp, 100.dp)
            ),
            onCloseRequest = { showSettings = false },
        ) { /* etc done here */ }
        println("Closing settings window...")
    }

[Kebbin]

The window flashes up for a brief moment, then closes, continuing execution of the function it is within.

[Sean Proctor]

I think you want to a LaunchedEffect like:

LaunchedEffect(showSettings) {
    if (!showSettings) {
        println("Closing settings window")
    }
}

[Kebbin]

Thanks! So that will pause the function until the window is closed by the user?

[Sean Proctor]

Composable functions shouldn't block/suspend, so there's no way to do what you wrote.

[Sean Proctor]

No, but it will execute some code when the window is closed.

[Kebbin]

Yes OK. I tried putting it out in a separate function, but still the same effect.
I'll try the launchedEffect idea. Thanks!

[Kebbin]

I need to somehow sequence things differently I guess. More learning!

[Sean Proctor]

The other option is to put that code in onCloseRequest

[Kebbin]

How would you load a @Composable in the middle of .......

[Kebbin]

I think I was just trying to type that!! Yes, that starts to gel with my thoughts now!

[Kebbin]

So, do the first stuff, then open the window to display the values, edit the values, then call the next code/function using the onCloseRequest callback?

[Sean Proctor]

I guess? I'm not really sure what you're trying to do.

[Kebbin]

Yep. I'll try that idea anyway. Thanks so much for your attention! 😎

[Sean Proctor]

A settings dialog should either apply the settings as the user changes them or when they click ok/save. Usually closing a dialog is a no-op.

[Kebbin]

Yes, true. That should be adjustable in the logic.
I'm heading for bed here now, so you have a nice day! 😄

[Sean Proctor]

Good night

[Kebbin]

Yep, thanks mate.