1 /*
2  * Copyright (C) 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.settingslib.bluetooth
18 
19 import kotlinx.coroutines.channels.awaitClose
20 import kotlinx.coroutines.flow.Flow
21 import kotlinx.coroutines.flow.callbackFlow
22 import kotlinx.coroutines.launch
23 
24 /** [Flow] for [BluetoothCallback] device profile connection state change events */
25 val BluetoothEventManager.onProfileConnectionStateChanged: Flow<ProfileConnectionState>
<lambda>null26     get() = callbackFlow {
27         val callback =
28             object : BluetoothCallback {
29                 override fun onProfileConnectionStateChanged(
30                     cachedDevice: CachedBluetoothDevice,
31                     @BluetoothCallback.ConnectionState state: Int,
32                     bluetoothProfile: Int
33                 ) {
34                     launch { send(ProfileConnectionState(cachedDevice, state, bluetoothProfile)) }
35                 }
36             }
37         registerCallback(callback)
38         awaitClose { unregisterCallback(callback) }
39     }
40