[Catalyst] Media volume migration

Bug: 364898461
Test: atest MediaVolumePreferenceTest
Flag: com.android.settings.flags.catalyst_sound_screen
Change-Id: I172f336a7d1c843d071dd920d29aa35b4a1a8aaf

src/com/android/settings/notification/MediaVolumePreference.kt

@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2024 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.settings.notification
+
+import android.content.Context
+import android.media.AudioManager.STREAM_MUSIC
+import android.os.UserHandle
+import android.os.UserManager
+import androidx.preference.Preference
+import com.android.settings.R
+import com.android.settingslib.RestrictedLockUtilsInternal
+import com.android.settingslib.datastore.KeyValueStore
+import com.android.settingslib.datastore.NoOpKeyedObservable
+import com.android.settingslib.metadata.*
+import com.android.settingslib.preference.PreferenceBinding
+
+// LINT.IfChange
+open class MediaVolumePreference :
+    PreferenceMetadata,
+    PreferenceBinding,
+    PersistentPreference<Int>,
+    RangeValue,
+    PreferenceAvailabilityProvider,
+    PreferenceIconProvider,
+    PreferenceRestrictionProvider {
+    override val key: String
+        get() = KEY
+
+    override val title: Int
+        get() = R.string.media_volume_option_title
+
+    override fun getIcon(context: Context) =
+        when {
+            VolumeHelper.isMuted(context, STREAM_MUSIC) -> R.drawable.ic_media_stream_off
+            else -> R.drawable.ic_media_stream
+        }
+
+    override fun isAvailable(context: Context) =
+        context.resources.getBoolean(R.bool.config_show_media_volume)
+
+    override fun isRestricted(context: Context) =
+        RestrictedLockUtilsInternal.hasBaseUserRestriction(
+            context,
+            UserManager.DISALLOW_ADJUST_VOLUME,
+            UserHandle.myUserId(),
+        ) ||
+                RestrictedLockUtilsInternal.checkIfRestrictionEnforced(
+                    context,
+                    UserManager.DISALLOW_ADJUST_VOLUME,
+                    UserHandle.myUserId(),
+                ) != null
+
+    override fun storage(context: Context): KeyValueStore {
+        val helper = createAudioHelper(context)
+        return object : NoOpKeyedObservable<String>(), KeyValueStore {
+            override fun contains(key: String) = key == KEY
+
+            @Suppress("UNCHECKED_CAST")
+            override fun <T : Any> getValue(key: String, valueType: Class<T>) =
+                helper.getStreamVolume(STREAM_MUSIC) as T
+
+            override fun <T : Any> setValue(key: String, valueType: Class<T>, value: T?) {
+                helper.setStreamVolume(STREAM_MUSIC, value as Int)
+            }
+        }
+    }
+
+    override fun getMinValue(context: Context) =
+        createAudioHelper(context).getMinVolume(STREAM_MUSIC)
+
+    override fun getMaxValue(context: Context) =
+        createAudioHelper(context).getMaxVolume(STREAM_MUSIC)
+
+    override fun createWidget(context: Context) = VolumeSeekBarPreference(context)
+
+    override fun bind(preference: Preference, metadata: PreferenceMetadata) {
+        super.bind(preference, metadata)
+        (preference as VolumeSeekBarPreference).apply {
+            setStream(STREAM_MUSIC)
+            setMuteIcon(R.drawable.ic_media_stream_off)
+            setListener { updateContentDescription(this) }
+        }
+    }
+
+    open fun createAudioHelper(context: Context) = AudioHelper(context)
+
+    fun updateContentDescription(preference: VolumeSeekBarPreference) {
+        when {
+            preference.isMuted() ->
+                preference.updateContentDescription(
+                    preference.context.getString(
+                        R.string.volume_content_description_silent_mode,
+                        preference.title,
+                    )
+                )
+            else -> preference.updateContentDescription(preference.title)
+        }
+    }
+
+    companion object {
+        const val KEY = "media_volume"
+    }
+}
+// LINT.ThenChange(MediaVolumePreferenceController.java)