UiModeManagerService.java revision b880d880c6cd989eacc28c365fc9a41d31900da1
1/* 2 * Copyright (C) 2008 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 17package com.android.server; 18 19import android.app.Activity; 20import android.app.ActivityManager; 21import android.app.ActivityManagerNative; 22import android.app.IUiModeManager; 23import android.app.Notification; 24import android.app.NotificationManager; 25import android.app.PendingIntent; 26import android.app.StatusBarManager; 27import android.app.UiModeManager; 28import android.content.BroadcastReceiver; 29import android.content.Context; 30import android.content.Intent; 31import android.content.IntentFilter; 32import android.content.pm.PackageManager; 33import android.content.res.Configuration; 34import android.os.BatteryManager; 35import android.os.Binder; 36import android.os.Handler; 37import android.os.IBinder; 38import android.os.PowerManager; 39import android.os.RemoteException; 40import android.os.UserHandle; 41import android.provider.Settings; 42import android.service.dreams.Sandman; 43import android.util.Slog; 44 45import java.io.FileDescriptor; 46import java.io.PrintWriter; 47 48import com.android.internal.R; 49import com.android.internal.app.DisableCarModeActivity; 50import com.android.server.twilight.TwilightListener; 51import com.android.server.twilight.TwilightManager; 52import com.android.server.twilight.TwilightState; 53 54final class UiModeManagerService extends SystemService { 55 private static final String TAG = UiModeManager.class.getSimpleName(); 56 private static final boolean LOG = false; 57 58 // Enable launching of applications when entering the dock. 59 private static final boolean ENABLE_LAUNCH_CAR_DOCK_APP = true; 60 private static final boolean ENABLE_LAUNCH_DESK_DOCK_APP = true; 61 62 final Object mLock = new Object(); 63 private int mDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED; 64 65 private int mLastBroadcastState = Intent.EXTRA_DOCK_STATE_UNDOCKED; 66 int mNightMode = UiModeManager.MODE_NIGHT_NO; 67 68 private boolean mCarModeEnabled = false; 69 private boolean mCharging = false; 70 private int mDefaultUiModeType; 71 private boolean mCarModeKeepsScreenOn; 72 private boolean mDeskModeKeepsScreenOn; 73 private boolean mTelevision; 74 private boolean mComputedNightMode; 75 76 int mCurUiMode = 0; 77 private int mSetUiMode = 0; 78 private boolean mHoldingConfiguration = false; 79 80 private Configuration mConfiguration = new Configuration(); 81 boolean mSystemReady; 82 83 private final Handler mHandler = new Handler(); 84 85 private TwilightManager mTwilightManager; 86 private NotificationManager mNotificationManager; 87 private StatusBarManager mStatusBarManager; 88 89 private PowerManager.WakeLock mWakeLock; 90 91 public UiModeManagerService(Context context) { 92 super(context); 93 } 94 95 private static Intent buildHomeIntent(String category) { 96 Intent intent = new Intent(Intent.ACTION_MAIN); 97 intent.addCategory(category); 98 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK 99 | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); 100 return intent; 101 } 102 103 // The broadcast receiver which receives the result of the ordered broadcast sent when 104 // the dock state changes. The original ordered broadcast is sent with an initial result 105 // code of RESULT_OK. If any of the registered broadcast receivers changes this value, e.g., 106 // to RESULT_CANCELED, then the intent to start a dock app will not be sent. 107 private final BroadcastReceiver mResultReceiver = new BroadcastReceiver() { 108 @Override 109 public void onReceive(Context context, Intent intent) { 110 if (getResultCode() != Activity.RESULT_OK) { 111 if (LOG) { 112 Slog.v(TAG, "Handling broadcast result for action " + intent.getAction() 113 + ": canceled: " + getResultCode()); 114 } 115 return; 116 } 117 118 final int enableFlags = intent.getIntExtra("enableFlags", 0); 119 final int disableFlags = intent.getIntExtra("disableFlags", 0); 120 synchronized (mLock) { 121 updateAfterBroadcastLocked(intent.getAction(), enableFlags, disableFlags); 122 } 123 } 124 }; 125 126 private final BroadcastReceiver mDockModeReceiver = new BroadcastReceiver() { 127 @Override 128 public void onReceive(Context context, Intent intent) { 129 int state = intent.getIntExtra(Intent.EXTRA_DOCK_STATE, 130 Intent.EXTRA_DOCK_STATE_UNDOCKED); 131 updateDockState(state); 132 } 133 }; 134 135 private final BroadcastReceiver mBatteryReceiver = new BroadcastReceiver() { 136 @Override 137 public void onReceive(Context context, Intent intent) { 138 mCharging = (intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0) != 0); 139 synchronized (mLock) { 140 if (mSystemReady) { 141 updateLocked(0, 0); 142 } 143 } 144 } 145 }; 146 147 private final TwilightListener mTwilightListener = new TwilightListener() { 148 @Override 149 public void onTwilightStateChanged() { 150 updateTwilight(); 151 } 152 }; 153 154 @Override 155 public void onStart() { 156 final Context context = getContext(); 157 mTwilightManager = getLocalService(TwilightManager.class); 158 final PowerManager powerManager = 159 (PowerManager) context.getSystemService(Context.POWER_SERVICE); 160 mWakeLock = powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG); 161 162 context.registerReceiver(mDockModeReceiver, 163 new IntentFilter(Intent.ACTION_DOCK_EVENT)); 164 context.registerReceiver(mBatteryReceiver, 165 new IntentFilter(Intent.ACTION_BATTERY_CHANGED)); 166 167 mConfiguration.setToDefaults(); 168 169 mDefaultUiModeType = context.getResources().getInteger( 170 com.android.internal.R.integer.config_defaultUiModeType); 171 mCarModeKeepsScreenOn = (context.getResources().getInteger( 172 com.android.internal.R.integer.config_carDockKeepsScreenOn) == 1); 173 mDeskModeKeepsScreenOn = (context.getResources().getInteger( 174 com.android.internal.R.integer.config_deskDockKeepsScreenOn) == 1); 175 mTelevision = context.getPackageManager().hasSystemFeature( 176 PackageManager.FEATURE_TELEVISION); 177 178 mNightMode = Settings.Secure.getInt(context.getContentResolver(), 179 Settings.Secure.UI_NIGHT_MODE, UiModeManager.MODE_NIGHT_AUTO); 180 181 mTwilightManager.registerListener(mTwilightListener, mHandler); 182 183 publishBinderService(Context.UI_MODE_SERVICE, mService); 184 } 185 186 private final IBinder mService = new IUiModeManager.Stub() { 187 @Override 188 public void enableCarMode(int flags) { 189 final long ident = Binder.clearCallingIdentity(); 190 try { 191 synchronized (mLock) { 192 setCarModeLocked(true); 193 if (mSystemReady) { 194 updateLocked(flags, 0); 195 } 196 } 197 } finally { 198 Binder.restoreCallingIdentity(ident); 199 } 200 } 201 202 @Override 203 public void disableCarMode(int flags) { 204 final long ident = Binder.clearCallingIdentity(); 205 try { 206 synchronized (mLock) { 207 setCarModeLocked(false); 208 if (mSystemReady) { 209 updateLocked(0, flags); 210 } 211 } 212 } finally { 213 Binder.restoreCallingIdentity(ident); 214 } 215 } 216 217 @Override 218 public int getCurrentModeType() { 219 final long ident = Binder.clearCallingIdentity(); 220 try { 221 synchronized (mLock) { 222 return mCurUiMode & Configuration.UI_MODE_TYPE_MASK; 223 } 224 } finally { 225 Binder.restoreCallingIdentity(ident); 226 } 227 } 228 229 @Override 230 public void setNightMode(int mode) { 231 switch (mode) { 232 case UiModeManager.MODE_NIGHT_NO: 233 case UiModeManager.MODE_NIGHT_YES: 234 case UiModeManager.MODE_NIGHT_AUTO: 235 break; 236 default: 237 throw new IllegalArgumentException("Unknown mode: " + mode); 238 } 239 240 final long ident = Binder.clearCallingIdentity(); 241 try { 242 synchronized (mLock) { 243 if (isDoingNightModeLocked() && mNightMode != mode) { 244 Settings.Secure.putInt(getContext().getContentResolver(), 245 Settings.Secure.UI_NIGHT_MODE, mode); 246 mNightMode = mode; 247 updateLocked(0, 0); 248 } 249 } 250 } finally { 251 Binder.restoreCallingIdentity(ident); 252 } 253 } 254 255 @Override 256 public int getNightMode() { 257 synchronized (mLock) { 258 return mNightMode; 259 } 260 } 261 262 @Override 263 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 264 if (getContext().checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 265 != PackageManager.PERMISSION_GRANTED) { 266 267 pw.println("Permission Denial: can't dump uimode service from from pid=" 268 + Binder.getCallingPid() 269 + ", uid=" + Binder.getCallingUid()); 270 return; 271 } 272 273 dumpImpl(pw); 274 } 275 }; 276 277 void dumpImpl(PrintWriter pw) { 278 synchronized (mLock) { 279 pw.println("Current UI Mode Service state:"); 280 pw.print(" mDockState="); pw.print(mDockState); 281 pw.print(" mLastBroadcastState="); pw.println(mLastBroadcastState); 282 pw.print(" mNightMode="); pw.print(mNightMode); 283 pw.print(" mCarModeEnabled="); pw.print(mCarModeEnabled); 284 pw.print(" mComputedNightMode="); pw.println(mComputedNightMode); 285 pw.print(" mCurUiMode=0x"); pw.print(Integer.toHexString(mCurUiMode)); 286 pw.print(" mSetUiMode=0x"); pw.println(Integer.toHexString(mSetUiMode)); 287 pw.print(" mHoldingConfiguration="); pw.print(mHoldingConfiguration); 288 pw.print(" mSystemReady="); pw.println(mSystemReady); 289 pw.print(" mTwilightService.getCurrentState()="); 290 pw.println(mTwilightManager.getCurrentState()); 291 } 292 } 293 294 @Override 295 public void onBootPhase(int phase) { 296 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 297 synchronized (mLock) { 298 mSystemReady = true; 299 mCarModeEnabled = mDockState == Intent.EXTRA_DOCK_STATE_CAR; 300 updateComputedNightModeLocked(); 301 updateLocked(0, 0); 302 } 303 } 304 } 305 306 boolean isDoingNightModeLocked() { 307 return mCarModeEnabled || mDockState != Intent.EXTRA_DOCK_STATE_UNDOCKED; 308 } 309 310 void setCarModeLocked(boolean enabled) { 311 if (mCarModeEnabled != enabled) { 312 mCarModeEnabled = enabled; 313 } 314 } 315 316 private void updateDockState(int newState) { 317 synchronized (mLock) { 318 if (newState != mDockState) { 319 mDockState = newState; 320 setCarModeLocked(mDockState == Intent.EXTRA_DOCK_STATE_CAR); 321 if (mSystemReady) { 322 updateLocked(UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME, 0); 323 } 324 } 325 } 326 } 327 328 private static boolean isDeskDockState(int state) { 329 switch (state) { 330 case Intent.EXTRA_DOCK_STATE_DESK: 331 case Intent.EXTRA_DOCK_STATE_LE_DESK: 332 case Intent.EXTRA_DOCK_STATE_HE_DESK: 333 return true; 334 default: 335 return false; 336 } 337 } 338 339 private void updateConfigurationLocked() { 340 int uiMode = mTelevision ? Configuration.UI_MODE_TYPE_TELEVISION : mDefaultUiModeType; 341 if (mCarModeEnabled) { 342 uiMode = Configuration.UI_MODE_TYPE_CAR; 343 } else if (isDeskDockState(mDockState)) { 344 uiMode = Configuration.UI_MODE_TYPE_DESK; 345 } 346 if (mCarModeEnabled) { 347 if (mNightMode == UiModeManager.MODE_NIGHT_AUTO) { 348 updateComputedNightModeLocked(); 349 uiMode |= mComputedNightMode ? Configuration.UI_MODE_NIGHT_YES 350 : Configuration.UI_MODE_NIGHT_NO; 351 } else { 352 uiMode |= mNightMode << 4; 353 } 354 } else { 355 // Disabling the car mode clears the night mode. 356 uiMode = (uiMode & ~Configuration.UI_MODE_NIGHT_MASK) | Configuration.UI_MODE_NIGHT_NO; 357 } 358 359 if (LOG) { 360 Slog.d(TAG, 361 "updateConfigurationLocked: mDockState=" + mDockState 362 + "; mCarMode=" + mCarModeEnabled 363 + "; mNightMode=" + mNightMode 364 + "; uiMode=" + uiMode); 365 } 366 367 mCurUiMode = uiMode; 368 if (!mHoldingConfiguration) { 369 mConfiguration.uiMode = uiMode; 370 } 371 } 372 373 private void sendConfigurationLocked() { 374 if (mSetUiMode != mConfiguration.uiMode) { 375 mSetUiMode = mConfiguration.uiMode; 376 377 try { 378 ActivityManagerNative.getDefault().updateConfiguration(mConfiguration); 379 } catch (RemoteException e) { 380 Slog.w(TAG, "Failure communicating with activity manager", e); 381 } 382 } 383 } 384 385 void updateLocked(int enableFlags, int disableFlags) { 386 String action = null; 387 String oldAction = null; 388 if (mLastBroadcastState == Intent.EXTRA_DOCK_STATE_CAR) { 389 adjustStatusBarCarModeLocked(); 390 oldAction = UiModeManager.ACTION_EXIT_CAR_MODE; 391 } else if (isDeskDockState(mLastBroadcastState)) { 392 oldAction = UiModeManager.ACTION_EXIT_DESK_MODE; 393 } 394 395 if (mCarModeEnabled) { 396 if (mLastBroadcastState != Intent.EXTRA_DOCK_STATE_CAR) { 397 adjustStatusBarCarModeLocked(); 398 399 if (oldAction != null) { 400 getContext().sendBroadcastAsUser(new Intent(oldAction), UserHandle.ALL); 401 } 402 mLastBroadcastState = Intent.EXTRA_DOCK_STATE_CAR; 403 action = UiModeManager.ACTION_ENTER_CAR_MODE; 404 } 405 } else if (isDeskDockState(mDockState)) { 406 if (!isDeskDockState(mLastBroadcastState)) { 407 if (oldAction != null) { 408 getContext().sendBroadcastAsUser(new Intent(oldAction), UserHandle.ALL); 409 } 410 mLastBroadcastState = mDockState; 411 action = UiModeManager.ACTION_ENTER_DESK_MODE; 412 } 413 } else { 414 mLastBroadcastState = Intent.EXTRA_DOCK_STATE_UNDOCKED; 415 action = oldAction; 416 } 417 418 if (action != null) { 419 if (LOG) { 420 Slog.v(TAG, String.format( 421 "updateLocked: preparing broadcast: action=%s enable=0x%08x disable=0x%08x", 422 action, enableFlags, disableFlags)); 423 } 424 425 // Send the ordered broadcast; the result receiver will receive after all 426 // broadcasts have been sent. If any broadcast receiver changes the result 427 // code from the initial value of RESULT_OK, then the result receiver will 428 // not launch the corresponding dock application. This gives apps a chance 429 // to override the behavior and stay in their app even when the device is 430 // placed into a dock. 431 Intent intent = new Intent(action); 432 intent.putExtra("enableFlags", enableFlags); 433 intent.putExtra("disableFlags", disableFlags); 434 getContext().sendOrderedBroadcastAsUser(intent, UserHandle.CURRENT, null, 435 mResultReceiver, null, Activity.RESULT_OK, null, null); 436 437 // Attempting to make this transition a little more clean, we are going 438 // to hold off on doing a configuration change until we have finished 439 // the broadcast and started the home activity. 440 mHoldingConfiguration = true; 441 updateConfigurationLocked(); 442 } else { 443 String category = null; 444 if (mCarModeEnabled) { 445 if (ENABLE_LAUNCH_CAR_DOCK_APP 446 && (enableFlags & UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) { 447 category = Intent.CATEGORY_CAR_DOCK; 448 } 449 } else if (isDeskDockState(mDockState)) { 450 if (ENABLE_LAUNCH_DESK_DOCK_APP 451 && (enableFlags & UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) { 452 category = Intent.CATEGORY_DESK_DOCK; 453 } 454 } else { 455 if ((disableFlags & UiModeManager.DISABLE_CAR_MODE_GO_HOME) != 0) { 456 category = Intent.CATEGORY_HOME; 457 } 458 } 459 460 if (LOG) { 461 Slog.v(TAG, "updateLocked: null action, mDockState=" 462 + mDockState +", category=" + category); 463 } 464 465 sendConfigurationAndStartDreamOrDockAppLocked(category); 466 } 467 468 // keep screen on when charging and in car mode 469 boolean keepScreenOn = mCharging && 470 ((mCarModeEnabled && mCarModeKeepsScreenOn) || 471 (mCurUiMode == Configuration.UI_MODE_TYPE_DESK && mDeskModeKeepsScreenOn)); 472 if (keepScreenOn != mWakeLock.isHeld()) { 473 if (keepScreenOn) { 474 mWakeLock.acquire(); 475 } else { 476 mWakeLock.release(); 477 } 478 } 479 } 480 481 private void updateAfterBroadcastLocked(String action, int enableFlags, int disableFlags) { 482 // Launch a dock activity 483 String category = null; 484 if (UiModeManager.ACTION_ENTER_CAR_MODE.equals(action)) { 485 // Only launch car home when car mode is enabled and the caller 486 // has asked us to switch to it. 487 if (ENABLE_LAUNCH_CAR_DOCK_APP 488 && (enableFlags & UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) { 489 category = Intent.CATEGORY_CAR_DOCK; 490 } 491 } else if (UiModeManager.ACTION_ENTER_DESK_MODE.equals(action)) { 492 // Only launch car home when desk mode is enabled and the caller 493 // has asked us to switch to it. Currently re-using the car 494 // mode flag since we don't have a formal API for "desk mode". 495 if (ENABLE_LAUNCH_DESK_DOCK_APP 496 && (enableFlags & UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) { 497 category = Intent.CATEGORY_DESK_DOCK; 498 } 499 } else { 500 // Launch the standard home app if requested. 501 if ((disableFlags & UiModeManager.DISABLE_CAR_MODE_GO_HOME) != 0) { 502 category = Intent.CATEGORY_HOME; 503 } 504 } 505 506 if (LOG) { 507 Slog.v(TAG, String.format( 508 "Handling broadcast result for action %s: enable=0x%08x, disable=0x%08x, " 509 + "category=%s", 510 action, enableFlags, disableFlags, category)); 511 } 512 513 sendConfigurationAndStartDreamOrDockAppLocked(category); 514 } 515 516 private void sendConfigurationAndStartDreamOrDockAppLocked(String category) { 517 // Update the configuration but don't send it yet. 518 mHoldingConfiguration = false; 519 updateConfigurationLocked(); 520 521 // Start the dock app, if there is one. 522 boolean dockAppStarted = false; 523 if (category != null) { 524 // Now we are going to be careful about switching the 525 // configuration and starting the activity -- we need to 526 // do this in a specific order under control of the 527 // activity manager, to do it cleanly. So compute the 528 // new config, but don't set it yet, and let the 529 // activity manager take care of both the start and config 530 // change. 531 Intent homeIntent = buildHomeIntent(category); 532 if (Sandman.shouldStartDockApp(getContext(), homeIntent)) { 533 try { 534 int result = ActivityManagerNative.getDefault().startActivityWithConfig( 535 null, null, homeIntent, null, null, null, 0, 0, 536 mConfiguration, null, UserHandle.USER_CURRENT); 537 if (result >= ActivityManager.START_SUCCESS) { 538 dockAppStarted = true; 539 } else if (result != ActivityManager.START_INTENT_NOT_RESOLVED) { 540 Slog.e(TAG, "Could not start dock app: " + homeIntent 541 + ", startActivityWithConfig result " + result); 542 } 543 } catch (RemoteException ex) { 544 Slog.e(TAG, "Could not start dock app: " + homeIntent, ex); 545 } 546 } 547 } 548 549 // Send the new configuration. 550 sendConfigurationLocked(); 551 552 // If we did not start a dock app, then start dreaming if supported. 553 if (category != null && !dockAppStarted) { 554 Sandman.startDreamWhenDockedIfAppropriate(getContext()); 555 } 556 } 557 558 private void adjustStatusBarCarModeLocked() { 559 final Context context = getContext(); 560 if (mStatusBarManager == null) { 561 mStatusBarManager = (StatusBarManager) 562 context.getSystemService(Context.STATUS_BAR_SERVICE); 563 } 564 565 // Fear not: StatusBarManagerService manages a list of requests to disable 566 // features of the status bar; these are ORed together to form the 567 // active disabled list. So if (for example) the device is locked and 568 // the status bar should be totally disabled, the calls below will 569 // have no effect until the device is unlocked. 570 if (mStatusBarManager != null) { 571 mStatusBarManager.disable(mCarModeEnabled 572 ? StatusBarManager.DISABLE_NOTIFICATION_TICKER 573 : StatusBarManager.DISABLE_NONE); 574 } 575 576 if (mNotificationManager == null) { 577 mNotificationManager = (NotificationManager) 578 context.getSystemService(Context.NOTIFICATION_SERVICE); 579 } 580 581 if (mNotificationManager != null) { 582 if (mCarModeEnabled) { 583 Intent carModeOffIntent = new Intent(context, DisableCarModeActivity.class); 584 585 Notification n = new Notification(); 586 n.icon = R.drawable.stat_notify_car_mode; 587 n.defaults = Notification.DEFAULT_LIGHTS; 588 n.flags = Notification.FLAG_ONGOING_EVENT; 589 n.when = 0; 590 n.setLatestEventInfo( 591 context, 592 context.getString(R.string.car_mode_disable_notification_title), 593 context.getString(R.string.car_mode_disable_notification_message), 594 PendingIntent.getActivityAsUser(context, 0, carModeOffIntent, 0, 595 null, UserHandle.CURRENT)); 596 mNotificationManager.notifyAsUser(null, 597 R.string.car_mode_disable_notification_title, n, UserHandle.ALL); 598 } else { 599 mNotificationManager.cancelAsUser(null, 600 R.string.car_mode_disable_notification_title, UserHandle.ALL); 601 } 602 } 603 } 604 605 void updateTwilight() { 606 synchronized (mLock) { 607 if (isDoingNightModeLocked() && mNightMode == UiModeManager.MODE_NIGHT_AUTO) { 608 updateComputedNightModeLocked(); 609 updateLocked(0, 0); 610 } 611 } 612 } 613 614 private void updateComputedNightModeLocked() { 615 TwilightState state = mTwilightManager.getCurrentState(); 616 if (state != null) { 617 mComputedNightMode = state.isNight(); 618 } 619 } 620 621 622} 623