Ruben Brunk | dd18a0b | 2015-12-04 16:16:31 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | package com.android.server.vr; |
| 17 | |
Svetoslav Ganov | 47d98de | 2016-03-01 15:01:14 -0800 | [diff] [blame] | 18 | import android.app.AppOpsManager; |
Ruben Brunk | dd18a0b | 2015-12-04 16:16:31 -0800 | [diff] [blame] | 19 | import android.content.Context; |
| 20 | import android.content.Intent; |
| 21 | import android.content.pm.PackageManager; |
Svetoslav Ganov | 47d98de | 2016-03-01 15:01:14 -0800 | [diff] [blame] | 22 | import android.os.Binder; |
| 23 | import android.os.IBinder; |
Ruben Brunk | dd18a0b | 2015-12-04 16:16:31 -0800 | [diff] [blame] | 24 | import android.os.UserHandle; |
| 25 | import android.util.ArraySet; |
| 26 | import android.util.Slog; |
| 27 | |
| 28 | import com.android.server.SystemService; |
| 29 | |
| 30 | import java.util.ArrayList; |
| 31 | |
| 32 | /** |
| 33 | * Service tracking whether VR mode is active, and notifying listening system services of state |
| 34 | * changes. |
| 35 | * |
| 36 | * {@hide} |
| 37 | */ |
| 38 | public class VrManagerService extends SystemService { |
| 39 | |
Ruben Brunk | dd18a0b | 2015-12-04 16:16:31 -0800 | [diff] [blame] | 40 | public static final String TAG = "VrManagerService"; |
| 41 | |
Ruben Brunk | baa4b55 | 2016-02-02 16:27:37 -0800 | [diff] [blame] | 42 | private static native void initializeNative(); |
| 43 | private static native void setVrModeNative(boolean enabled); |
| 44 | |
Ruben Brunk | dd18a0b | 2015-12-04 16:16:31 -0800 | [diff] [blame] | 45 | private final Object mLock = new Object(); |
Svetoslav Ganov | 47d98de | 2016-03-01 15:01:14 -0800 | [diff] [blame] | 46 | |
| 47 | private final IBinder mOverlayToken = new Binder(); |
| 48 | |
Ruben Brunk | dd18a0b | 2015-12-04 16:16:31 -0800 | [diff] [blame] | 49 | private boolean mVrModeEnabled = false; |
| 50 | private ArraySet<VrStateListener> mListeners = new ArraySet<>(); |
| 51 | |
| 52 | private final class LocalService extends VrManagerInternal { |
| 53 | @Override |
| 54 | public boolean isInVrMode() { |
| 55 | return VrManagerService.this.getVrMode(); |
| 56 | } |
| 57 | |
| 58 | @Override |
| 59 | public void setVrMode(boolean enabled) { |
| 60 | VrManagerService.this.setVrMode(enabled); |
| 61 | } |
| 62 | |
| 63 | @Override |
| 64 | public void registerListener(VrStateListener listener) { |
| 65 | VrManagerService.this.addListener(listener); |
| 66 | } |
| 67 | |
| 68 | @Override |
| 69 | public void unregisterListener(VrStateListener listener) { |
| 70 | VrManagerService.this.removeListener(listener); |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | public VrManagerService(Context context) { |
| 75 | super(context); |
| 76 | } |
| 77 | |
| 78 | @Override |
| 79 | public void onStart() { |
Ruben Brunk | baa4b55 | 2016-02-02 16:27:37 -0800 | [diff] [blame] | 80 | synchronized(mLock) { |
| 81 | initializeNative(); |
| 82 | } |
| 83 | |
Ruben Brunk | dd18a0b | 2015-12-04 16:16:31 -0800 | [diff] [blame] | 84 | publishLocalService(VrManagerInternal.class, new LocalService()); |
| 85 | } |
| 86 | |
| 87 | private void addListener(VrStateListener listener) { |
| 88 | synchronized (mLock) { |
| 89 | mListeners.add(listener); |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | private void removeListener(VrStateListener listener) { |
| 94 | synchronized (mLock) { |
| 95 | mListeners.remove(listener); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | private void setVrMode(boolean enabled) { |
| 100 | synchronized (mLock) { |
| 101 | if (mVrModeEnabled != enabled) { |
| 102 | mVrModeEnabled = enabled; |
Ruben Brunk | 87112f7 | 2016-01-22 12:48:26 -0800 | [diff] [blame] | 103 | // Log mode change event. |
| 104 | Slog.i(TAG, "VR mode " + ((mVrModeEnabled) ? "enabled" : "disabled")); |
Ruben Brunk | baa4b55 | 2016-02-02 16:27:37 -0800 | [diff] [blame] | 105 | setVrModeNative(mVrModeEnabled); |
Svetoslav Ganov | 47d98de | 2016-03-01 15:01:14 -0800 | [diff] [blame] | 106 | updateOverlayStateLocked(); |
Ruben Brunk | dd18a0b | 2015-12-04 16:16:31 -0800 | [diff] [blame] | 107 | onVrModeChangedLocked(); |
| 108 | } |
| 109 | } |
| 110 | } |
| 111 | |
Svetoslav Ganov | 47d98de | 2016-03-01 15:01:14 -0800 | [diff] [blame] | 112 | private void updateOverlayStateLocked() { |
| 113 | final long identity = Binder.clearCallingIdentity(); |
| 114 | try { |
| 115 | AppOpsManager appOpsManager = getContext().getSystemService(AppOpsManager.class); |
| 116 | if (appOpsManager != null) { |
| 117 | appOpsManager.setUserRestriction(AppOpsManager.OP_SYSTEM_ALERT_WINDOW, |
| 118 | mVrModeEnabled, mOverlayToken); |
| 119 | } |
| 120 | } finally { |
| 121 | Binder.restoreCallingIdentity(identity); |
| 122 | } |
| 123 | } |
| 124 | |
Ruben Brunk | dd18a0b | 2015-12-04 16:16:31 -0800 | [diff] [blame] | 125 | private boolean getVrMode() { |
| 126 | synchronized (mLock) { |
| 127 | return mVrModeEnabled; |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | /** |
| 132 | * Notify system services of VR mode change. |
| 133 | */ |
| 134 | private void onVrModeChangedLocked() { |
| 135 | for (VrStateListener l : mListeners) { |
| 136 | l.onVrStateChanged(mVrModeEnabled); |
| 137 | } |
| 138 | } |
| 139 | } |