| /* |
| * Copyright 2019 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.server; |
| |
| import android.bluetooth.BluetoothA2dp; |
| import android.bluetooth.BluetoothAdapter; |
| import android.bluetooth.BluetoothHearingAid; |
| import android.bluetooth.BluetoothProfile; |
| import android.bluetooth.BluetoothProfile.ServiceListener; |
| import android.content.Context; |
| import android.content.res.Resources; |
| import android.database.ContentObserver; |
| import android.os.Handler; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.provider.Settings; |
| import android.util.Log; |
| import android.widget.Toast; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.VisibleForTesting; |
| |
| /** |
| * The BluetoothAirplaneModeListener handles system airplane mode change callback and checks |
| * whether we need to inform BluetoothManagerService on this change. |
| * |
| * The information of airplane mode turns on would not be passed to the BluetoothManagerService |
| * when Bluetooth is on and Bluetooth is in one of the following situations: |
| * 1. Bluetooth A2DP is connected. |
| * 2. Bluetooth Hearing Aid profile is connected. |
| */ |
| class BluetoothAirplaneModeListener { |
| private static final String TAG = "BluetoothAirplaneModeListener"; |
| @VisibleForTesting static final String TOAST_COUNT = "bluetooth_airplane_toast_count"; |
| |
| private static final int MSG_AIRPLANE_MODE_CHANGED = 0; |
| |
| @VisibleForTesting static final int MAX_TOAST_COUNT = 10; // 10 times |
| |
| private final BluetoothManagerService mBluetoothManager; |
| private final BluetoothAirplaneModeHandler mHandler; |
| private AirplaneModeHelper mAirplaneHelper; |
| |
| @VisibleForTesting int mToastCount = 0; |
| |
| BluetoothAirplaneModeListener(BluetoothManagerService service, Looper looper, Context context) { |
| mBluetoothManager = service; |
| |
| mHandler = new BluetoothAirplaneModeHandler(looper); |
| context.getContentResolver().registerContentObserver( |
| Settings.Global.getUriFor(Settings.Global.AIRPLANE_MODE_ON), true, |
| mAirplaneModeObserver); |
| } |
| |
| private final ContentObserver mAirplaneModeObserver = new ContentObserver(null) { |
| @Override |
| public void onChange(boolean unused) { |
| // Post from system main thread to android_io thread. |
| Message msg = mHandler.obtainMessage(MSG_AIRPLANE_MODE_CHANGED); |
| mHandler.sendMessage(msg); |
| } |
| }; |
| |
| private class BluetoothAirplaneModeHandler extends Handler { |
| BluetoothAirplaneModeHandler(Looper looper) { |
| super(looper); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case MSG_AIRPLANE_MODE_CHANGED: |
| handleAirplaneModeChange(); |
| break; |
| default: |
| Log.e(TAG, "Invalid message: " + msg.what); |
| break; |
| } |
| } |
| } |
| |
| /** |
| * Call after boot complete |
| */ |
| @VisibleForTesting |
| void start(AirplaneModeHelper helper) { |
| Log.i(TAG, "start"); |
| mAirplaneHelper = helper; |
| mToastCount = mAirplaneHelper.getSettingsInt(TOAST_COUNT); |
| } |
| |
| @VisibleForTesting |
| boolean shouldPopToast() { |
| if (mToastCount >= MAX_TOAST_COUNT) { |
| return false; |
| } |
| mToastCount++; |
| mAirplaneHelper.setSettingsInt(TOAST_COUNT, mToastCount); |
| return true; |
| } |
| |
| @VisibleForTesting |
| void handleAirplaneModeChange() { |
| if (shouldSkipAirplaneModeChange()) { |
| Log.i(TAG, "Ignore airplane mode change"); |
| // We have to store Bluetooth state here, so if user turns off Bluetooth |
| // after airplane mode is turned on, we don't forget to turn on Bluetooth |
| // when airplane mode turns off. |
| mAirplaneHelper.setSettingsInt(Settings.Global.BLUETOOTH_ON, |
| BluetoothManagerService.BLUETOOTH_ON_AIRPLANE); |
| if (shouldPopToast()) { |
| mAirplaneHelper.showToastMessage(); |
| } |
| return; |
| } |
| mAirplaneHelper.onAirplaneModeChanged(mBluetoothManager); |
| } |
| |
| @VisibleForTesting |
| boolean shouldSkipAirplaneModeChange() { |
| if (mAirplaneHelper == null) { |
| return false; |
| } |
| if (!mAirplaneHelper.isBluetoothOn() || !mAirplaneHelper.isAirplaneModeOn() |
| || !mAirplaneHelper.isA2dpOrHearingAidConnected()) { |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * Helper class that handles callout and callback methods without |
| * complex logic. |
| */ |
| @VisibleForTesting |
| public static class AirplaneModeHelper { |
| private volatile BluetoothA2dp mA2dp; |
| private volatile BluetoothHearingAid mHearingAid; |
| private final BluetoothAdapter mAdapter; |
| private final Context mContext; |
| |
| AirplaneModeHelper(Context context) { |
| mAdapter = BluetoothAdapter.getDefaultAdapter(); |
| mContext = context; |
| |
| mAdapter.getProfileProxy(mContext, mProfileServiceListener, BluetoothProfile.A2DP); |
| mAdapter.getProfileProxy(mContext, mProfileServiceListener, |
| BluetoothProfile.HEARING_AID); |
| } |
| |
| private final ServiceListener mProfileServiceListener = new ServiceListener() { |
| @Override |
| public void onServiceConnected(int profile, BluetoothProfile proxy) { |
| // Setup Bluetooth profile proxies |
| switch (profile) { |
| case BluetoothProfile.A2DP: |
| mA2dp = (BluetoothA2dp) proxy; |
| break; |
| case BluetoothProfile.HEARING_AID: |
| mHearingAid = (BluetoothHearingAid) proxy; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| @Override |
| public void onServiceDisconnected(int profile) { |
| // Clear Bluetooth profile proxies |
| switch (profile) { |
| case BluetoothProfile.A2DP: |
| mA2dp = null; |
| break; |
| case BluetoothProfile.HEARING_AID: |
| mHearingAid = null; |
| break; |
| default: |
| break; |
| } |
| } |
| }; |
| |
| @VisibleForTesting |
| public boolean isA2dpOrHearingAidConnected() { |
| return isA2dpConnected() || isHearingAidConnected(); |
| } |
| |
| @VisibleForTesting |
| public boolean isBluetoothOn() { |
| final BluetoothAdapter adapter = mAdapter; |
| if (adapter == null) { |
| return false; |
| } |
| return adapter.getLeState() == BluetoothAdapter.STATE_ON; |
| } |
| |
| @VisibleForTesting |
| public boolean isAirplaneModeOn() { |
| return Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.AIRPLANE_MODE_ON, 0) == 1; |
| } |
| |
| @VisibleForTesting |
| public void onAirplaneModeChanged(BluetoothManagerService managerService) { |
| managerService.onAirplaneModeChanged(); |
| } |
| |
| @VisibleForTesting |
| public int getSettingsInt(String name) { |
| return Settings.Global.getInt(mContext.getContentResolver(), |
| name, 0); |
| } |
| |
| @VisibleForTesting |
| public void setSettingsInt(String name, int value) { |
| Settings.Global.putInt(mContext.getContentResolver(), |
| name, value); |
| } |
| |
| @VisibleForTesting |
| public void showToastMessage() { |
| Resources r = mContext.getResources(); |
| final CharSequence text = r.getString( |
| R.string.bluetooth_airplane_mode_toast, 0); |
| Toast.makeText(mContext, text, Toast.LENGTH_LONG).show(); |
| } |
| |
| private boolean isA2dpConnected() { |
| final BluetoothA2dp a2dp = mA2dp; |
| if (a2dp == null) { |
| return false; |
| } |
| return a2dp.getConnectedDevices().size() > 0; |
| } |
| |
| private boolean isHearingAidConnected() { |
| final BluetoothHearingAid hearingAid = mHearingAid; |
| if (hearingAid == null) { |
| return false; |
| } |
| return hearingAid.getConnectedDevices().size() > 0; |
| } |
| }; |
| } |