PermissionController/src/com/android/permissioncontroller/permission/data/MicMutedLiveData.kt


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/*
 * Copyright (C) 2020 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.permissioncontroller.permission.data

import android.content.BroadcastReceiver
import android.content.Context
import android.content.Intent
import android.content.IntentFilter
import android.media.AudioManager
import com.android.permissioncontroller.PermissionControllerApplication
import kotlinx.coroutines.Job

/** Tracks whether the mic is muted or not */
val micMutedLiveData =
    object : SmartAsyncMediatorLiveData<Boolean>() {
        private val app = PermissionControllerApplication.get()

        private val isMicMuteRecevicer =
            object : BroadcastReceiver() {
                override fun onReceive(context: Context?, intent: Intent?) {
                    update()
                }
            }

        override suspend fun loadDataAndPostValue(job: Job) {
            postValue(app.getSystemService(AudioManager::class.java).isMicrophoneMute())
        }

        override fun onActive() {
            super.onActive()

            app.registerReceiver(
                isMicMuteRecevicer,
                IntentFilter(AudioManager.ACTION_MICROPHONE_MUTE_CHANGED)
            )
            update()
        }

        override fun onInactive() {
            super.onInactive()

            app.unregisterReceiver(isMicMuteRecevicer)
        }
    }