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/*
* Copyright (C) 2018 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.incallui.audiomode;
import android.annotation.SuppressLint;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothHeadset;
import android.bluetooth.BluetoothProfile;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.util.ArraySet;
import com.android.dialer.common.LogUtil;
import com.android.dialer.inject.ApplicationContext;
import java.lang.reflect.Method;
import java.util.List;
import java.util.Set;
import javax.inject.Inject;
import javax.inject.Singleton;
/** Proxy class for getting and setting connected/active Bluetooth devices. */
@Singleton
public final class BluetoothDeviceProvider extends BroadcastReceiver {
// TODO(yueg): use BluetoothHeadset.ACTION_ACTIVE_DEVICE_CHANGED when possible
private static final String ACTION_ACTIVE_DEVICE_CHANGED =
"android.bluetooth.headset.profile.action.ACTIVE_DEVICE_CHANGED";
private final Context appContext;
private final BluetoothProfileServiceListener bluetoothProfileServiceListener =
new BluetoothProfileServiceListener();
private final Set<BluetoothDevice> connectedBluetoothDeviceSet = new ArraySet<>();
private BluetoothDevice activeBluetoothDevice;
private BluetoothHeadset bluetoothHeadset;
private boolean isSetUp;
@Inject
public BluetoothDeviceProvider(@ApplicationContext Context appContext) {
this.appContext = appContext;
}
public void setUp() {
if (BluetoothAdapter.getDefaultAdapter() == null) {
// Bluetooth is not supported on this hardware platform
return;
}
// Get Bluetooth service including the initial connected device list (should only contain one
// device)
BluetoothAdapter.getDefaultAdapter()
.getProfileProxy(appContext, bluetoothProfileServiceListener, BluetoothProfile.HEADSET);
// Get notified of Bluetooth device update
IntentFilter filter = new IntentFilter();
filter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
filter.addAction(ACTION_ACTIVE_DEVICE_CHANGED);
appContext.registerReceiver(this, filter);
isSetUp = true;
}
public void tearDown() {
if (!isSetUp) {
return;
}
appContext.unregisterReceiver(this);
if (bluetoothHeadset != null) {
BluetoothAdapter.getDefaultAdapter()
.closeProfileProxy(BluetoothProfile.HEADSET, bluetoothHeadset);
}
}
public Set<BluetoothDevice> getConnectedBluetoothDeviceSet() {
return connectedBluetoothDeviceSet;
}
public BluetoothDevice getActiveBluetoothDevice() {
return activeBluetoothDevice;
}
@SuppressLint("PrivateApi")
public void setActiveBluetoothDevice(BluetoothDevice bluetoothDevice) {
if (!connectedBluetoothDeviceSet.contains(bluetoothDevice)) {
LogUtil.e("BluetoothProfileServiceListener.setActiveBluetoothDevice", "device is not in set");
return;
}
// TODO(yueg): use BluetoothHeadset.setActiveDevice() when possible
try {
Method getActiveDeviceMethod =
bluetoothHeadset.getClass().getDeclaredMethod("setActiveDevice", BluetoothDevice.class);
getActiveDeviceMethod.setAccessible(true);
getActiveDeviceMethod.invoke(bluetoothHeadset, bluetoothDevice);
} catch (Exception e) {
LogUtil.e(
"BluetoothProfileServiceListener.setActiveBluetoothDevice",
"failed to call setActiveDevice",
e);
}
}
@Override
public void onReceive(Context context, Intent intent) {
if (BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED.equals(intent.getAction())) {
handleActionConnectionStateChanged(intent);
} else if (ACTION_ACTIVE_DEVICE_CHANGED.equals(intent.getAction())) {
handleActionActiveDeviceChanged(intent);
}
}
private void handleActionConnectionStateChanged(Intent intent) {
if (!intent.hasExtra(BluetoothDevice.EXTRA_DEVICE)) {
LogUtil.i(
"BluetoothDeviceProvider.handleActionConnectionStateChanged",
"extra BluetoothDevice.EXTRA_DEVICE not found");
return;
}
BluetoothDevice bluetoothDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (bluetoothDevice == null) {
return;
}
int state = intent.getIntExtra(BluetoothProfile.EXTRA_STATE, -1);
if (state == BluetoothProfile.STATE_DISCONNECTED) {
connectedBluetoothDeviceSet.remove(bluetoothDevice);
LogUtil.i("BluetoothDeviceProvider.handleActionConnectionStateChanged", "device removed");
} else if (state == BluetoothProfile.STATE_CONNECTED) {
connectedBluetoothDeviceSet.add(bluetoothDevice);
LogUtil.i("BluetoothDeviceProvider.handleActionConnectionStateChanged", "device added");
}
}
private void handleActionActiveDeviceChanged(Intent intent) {
if (!intent.hasExtra(BluetoothDevice.EXTRA_DEVICE)) {
LogUtil.i(
"BluetoothDeviceProvider.handleActionActiveDeviceChanged",
"extra BluetoothDevice.EXTRA_DEVICE not found");
return;
}
activeBluetoothDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
LogUtil.i(
"BluetoothDeviceProvider.handleActionActiveDeviceChanged",
(activeBluetoothDevice == null ? "null" : ""));
}
private final class BluetoothProfileServiceListener implements BluetoothProfile.ServiceListener {
@Override
@SuppressLint("PrivateApi")
public void onServiceConnected(int profile, BluetoothProfile bluetoothProfile) {
if (profile != BluetoothProfile.HEADSET) {
return;
}
// Get initial connected device list
bluetoothHeadset = (BluetoothHeadset) bluetoothProfile;
List<BluetoothDevice> devices = bluetoothProfile.getConnectedDevices();
for (BluetoothDevice device : devices) {
connectedBluetoothDeviceSet.add(device);
LogUtil.i(
"BluetoothProfileServiceListener.onServiceConnected", "get initial connected device");
}
// Get initial active device
// TODO(yueg): use BluetoothHeadset.getActiveDevice() when possible
try {
Method getActiveDeviceMethod =
bluetoothHeadset.getClass().getDeclaredMethod("getActiveDevice");
getActiveDeviceMethod.setAccessible(true);
activeBluetoothDevice = (BluetoothDevice) getActiveDeviceMethod.invoke(bluetoothHeadset);
LogUtil.i(
"BluetoothProfileServiceListener.onServiceConnected",
"get initial active device" + ((activeBluetoothDevice == null) ? " null" : ""));
} catch (Exception e) {
LogUtil.e(
"BluetoothProfileServiceListener.onServiceConnected",
"failed to call getAcitveDevice",
e);
}
}
@Override
public void onServiceDisconnected(int profile) {
LogUtil.enterBlock("BluetoothProfileServiceListener.onServiceDisconnected");
if (profile == BluetoothProfile.HEADSET) {
bluetoothHeadset = null;
}
}
}
}
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