packages/SettingsLib/Spa/spa/src/com/android/settingslib/spa/widget/ui/SettingsSlider.kt

/*
 * Copyright (C) 2022 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.settingslib.spa.widget.ui

import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Slider
import androidx.compose.material3.SliderDefaults
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.saveable.rememberSaveable
import androidx.compose.runtime.setValue
import androidx.compose.ui.Modifier
import com.android.settingslib.spa.framework.theme.surfaceTone
import kotlin.math.roundToInt

@Composable
fun SettingsSlider(
    initValue: Int,
    modifier: Modifier = Modifier,
    valueRange: IntRange = 0..100,
    onValueChange: ((value: Int) -> Unit)? = null,
    onValueChangeFinished: (() -> Unit)? = null,
    showSteps: Boolean = false,
) {
    var sliderPosition by rememberSaveable { mutableStateOf(initValue.toFloat()) }
    Slider(
        value = sliderPosition,
        onValueChange = {
            sliderPosition = it
            onValueChange?.invoke(sliderPosition.roundToInt())
        },
        modifier = modifier,
        valueRange = valueRange.first.toFloat()..valueRange.last.toFloat(),
        steps = if (showSteps) (valueRange.count() - 2) else 0,
        onValueChangeFinished = onValueChangeFinished,
        colors = SliderDefaults.colors(
            inactiveTrackColor = MaterialTheme.colorScheme.surfaceTone
        )
    )
}