Report AccessibleRole.SLIDER for Slider

[m-sasha]

For nodes with SemanticsProperties.ProgressBarRangeInfo that also have a SemanticsActions.SetProgress report AWT role as AccessibleRole.SLIDER. This indicates to accessibility (specifically VoiceOver) that it should announce the value on every change.

Fixes https://youtrack.jetbrains.com/issue/CMP-8309

Testing

Tested manually with

fun main() = singleWindowApplication {
    Column(
        Modifier.fillMaxSize(),
        horizontalAlignment = Alignment.CenterHorizontally,
        verticalArrangement = Arrangement.Center
    ) {

        var value by remember { mutableStateOf(42f) }
        Slider(
            value = value,
            onValueChange = { value = it },
            valueRange = 0f..100f,
            modifier = Modifier.size(200.dp, 50.dp)
        )

        Spacer(Modifier.height(24.dp))

        LinearProgressIndicator(
            progress = value / 100f,
            modifier = Modifier.width(200.dp)
        )
    }
}

This could be tested by QA

Release Notes

Fixes - Desktop

• [Accessibility, macOS] Fixed VoiceOver to announce a Slider's value on every change.