policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

   1 /*
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at
   6  *
   7  *      http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 package com.android.internal.policy.impl;
  17
  18 import android.app.ActivityManager;
  19 import android.app.ActivityManagerNative;
  20 import android.app.AppOpsManager;
  21 import android.app.IUiModeManager;
  22 import android.app.ProgressDialog;
  23 import android.app.SearchManager;
  24 import android.app.StatusBarManager;
  25 import android.app.UiModeManager;
  26 import android.content.ActivityNotFoundException;
  27 import android.content.BroadcastReceiver;
  28 import android.content.ComponentName;
  29 import android.content.ContentResolver;
  30 import android.content.Context;
  31 import android.content.Intent;
  32 import android.content.IntentFilter;
  33 import android.content.ServiceConnection;
  34 import android.content.pm.ActivityInfo;
  35 import android.content.pm.PackageManager;
  36 import android.content.pm.ResolveInfo;
  37 import android.content.res.CompatibilityInfo;
  38 import android.content.res.Configuration;
  39 import android.content.res.Resources;
  40 import android.content.res.TypedArray;
  41 import android.database.ContentObserver;
  42 import android.graphics.PixelFormat;
  43 import android.graphics.Rect;
  44 import android.media.AudioAttributes;
  45 import android.media.AudioManager;
  46 import android.media.IAudioService;
  47 import android.media.Ringtone;
  48 import android.media.RingtoneManager;
  49 import android.media.session.MediaSessionLegacyHelper;
  50 import android.os.Bundle;
  51 import android.os.FactoryTest;
  52 import android.os.Handler;
  53 import android.os.IBinder;
  54 import android.os.Looper;
  55 import android.os.Message;
  56 import android.os.Messenger;
  57 import android.os.PowerManager;
  58 import android.os.RemoteException;
  59 import android.os.ServiceManager;
  60 import android.os.SystemClock;
  61 import android.os.SystemProperties;
  62 import android.os.UEventObserver;
  63 import android.os.UserHandle;
  64 import android.os.Vibrator;
  65 import android.provider.MediaStore;
  66 import android.provider.Settings;
  67 import android.service.dreams.DreamManagerInternal;
  68 import android.service.dreams.DreamService;
  69 import android.service.dreams.IDreamManager;
  70 import android.speech.RecognizerIntent;
  71 import android.telecom.TelecomManager;
  72 import android.util.DisplayMetrics;
  73 import android.util.EventLog;
  74 import android.util.Log;
  75 import android.util.Slog;
  76 import android.util.SparseArray;
  77 import android.view.Display;
  78 import android.view.Gravity;
  79 import android.view.HapticFeedbackConstants;
  80 import android.view.IApplicationToken;
  81 import android.view.IWindowManager;
  82 import android.view.InputChannel;
  83 import android.view.InputDevice;
  84 import android.view.InputEvent;
  85 import android.view.InputEventReceiver;
  86 import android.view.KeyCharacterMap;
  87 import android.view.KeyCharacterMap.FallbackAction;
  88 import android.view.KeyEvent;
  89 import android.view.MotionEvent;
  90 import android.view.Surface;
  91 import android.view.View;
  92 import android.view.ViewConfiguration;
  93 import android.view.Window;
  94 import android.view.WindowManager;
  95 import android.view.WindowManagerGlobal;
  96 import android.view.WindowManagerInternal;
  97 import android.view.WindowManagerPolicy;
  98 import android.view.accessibility.AccessibilityEvent;
  99 import android.view.accessibility.AccessibilityManager;
 100 import android.view.animation.Animation;
 101 import android.view.animation.AnimationSet;
 102 import android.view.animation.AnimationUtils;
 103
 104 import com.android.internal.R;
 105 import com.android.internal.policy.IKeyguardService;
 106 import com.android.internal.policy.IKeyguardServiceConstants;
 107 import com.android.internal.policy.PolicyManager;
 108 import com.android.internal.policy.impl.keyguard.KeyguardServiceDelegate;
 109 import com.android.internal.policy.impl.keyguard.KeyguardServiceDelegate.ShowListener;
 110 import com.android.internal.statusbar.IStatusBarService;
 111 import com.android.internal.widget.PointerLocationView;
 112 import com.android.server.LocalServices;
 113
 114 import java.io.File;
 115 import java.io.FileReader;
 116 import java.io.IOException;
 117 import java.io.PrintWriter;
 118 import java.util.HashSet;
 119
 120 import static android.view.WindowManager.LayoutParams.*;
 121 import static android.view.WindowManagerPolicy.WindowManagerFuncs.LID_ABSENT;
 122 import static android.view.WindowManagerPolicy.WindowManagerFuncs.LID_OPEN;
 123 import static android.view.WindowManagerPolicy.WindowManagerFuncs.LID_CLOSED;
 124 import static android.view.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_COVER_ABSENT;
 125 import static android.view.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_UNCOVERED;
 126 import static android.view.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_COVERED;
 127
 128 /**
 129  * WindowManagerPolicy implementation for the Android phone UI.  This
 130  * introduces a new method suffix, Lp, for an internal lock of the
 131  * PhoneWindowManager.  This is used to protect some internal state, and
 132  * can be acquired with either the Lw and Li lock held, so has the restrictions
 133  * of both of those when held.
 134  */
 135 public class PhoneWindowManager implements WindowManagerPolicy {
 136     static final String TAG = "WindowManager";
 137     static final boolean DEBUG = false;
 138     static final boolean localLOGV = false;
 139     static final boolean DEBUG_LAYOUT = false;
 140     static final boolean DEBUG_INPUT = false;
 141     static final boolean DEBUG_STARTING_WINDOW = false;
 142     static final boolean DEBUG_WAKEUP = false;
 143     static final boolean SHOW_STARTING_ANIMATIONS = true;
 144     static final boolean SHOW_PROCESSES_ON_ALT_MENU = false;
 145
 146     // Whether to allow dock apps with METADATA_DOCK_HOME to temporarily take over the Home key.
 147     // No longer recommended for desk docks; still useful in car docks.
 148     static final boolean ENABLE_CAR_DOCK_HOME_CAPTURE = true;
 149     static final boolean ENABLE_DESK_DOCK_HOME_CAPTURE = false;
 150
 151     static final int SHORT_PRESS_POWER_NOTHING = 0;
 152     static final int SHORT_PRESS_POWER_GO_TO_SLEEP = 1;
 153     static final int SHORT_PRESS_POWER_REALLY_GO_TO_SLEEP = 2;
 154     static final int SHORT_PRESS_POWER_REALLY_GO_TO_SLEEP_AND_GO_HOME = 3;
 155
 156     static final int LONG_PRESS_POWER_NOTHING = 0;
 157     static final int LONG_PRESS_POWER_GLOBAL_ACTIONS = 1;
 158     static final int LONG_PRESS_POWER_SHUT_OFF = 2;
 159     static final int LONG_PRESS_POWER_SHUT_OFF_NO_CONFIRM = 3;
 160
 161     // These need to match the documentation/constant in
 162     // core/res/res/values/config.xml
 163     static final int LONG_PRESS_HOME_NOTHING = 0;
 164     static final int LONG_PRESS_HOME_RECENT_SYSTEM_UI = 1;
 165     static final int LONG_PRESS_HOME_ASSIST = 2;
 166
 167     static final int DOUBLE_TAP_HOME_NOTHING = 0;
 168     static final int DOUBLE_TAP_HOME_RECENT_SYSTEM_UI = 1;
 169
 170     static final int APPLICATION_MEDIA_SUBLAYER = -2;
 171     static final int APPLICATION_MEDIA_OVERLAY_SUBLAYER = -1;
 172     static final int APPLICATION_PANEL_SUBLAYER = 1;
 173     static final int APPLICATION_SUB_PANEL_SUBLAYER = 2;
 174
 175     static public final String SYSTEM_DIALOG_REASON_KEY = "reason";
 176     static public final String SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS = "globalactions";
 177     static public final String SYSTEM_DIALOG_REASON_RECENT_APPS = "recentapps";
 178     static public final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
 179     static public final String SYSTEM_DIALOG_REASON_ASSIST = "assist";
 180
 181     /**
 182      * These are the system UI flags that, when changing, can cause the layout
 183      * of the screen to change.
 184      */
 185     static final int SYSTEM_UI_CHANGING_LAYOUT =
 186               View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
 187             | View.SYSTEM_UI_FLAG_FULLSCREEN
 188             | View.STATUS_BAR_TRANSLUCENT
 189             | View.NAVIGATION_BAR_TRANSLUCENT
 190             | View.SYSTEM_UI_TRANSPARENT;
 191
 192     private static final AudioAttributes VIBRATION_ATTRIBUTES = new AudioAttributes.Builder()
 193             .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
 194             .setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION)
 195             .build();
 196
 197     /**
 198      * Keyguard stuff
 199      */
 200     private WindowState mKeyguardScrim;
 201     private boolean mKeyguardHidden;
 202     private boolean mKeyguardDrawnOnce;
 203
 204     /* Table of Application Launch keys.  Maps from key codes to intent categories.
 205      *
 206      * These are special keys that are used to launch particular kinds of applications,
 207      * such as a web browser.  HID defines nearly a hundred of them in the Consumer (0x0C)
 208      * usage page.  We don't support quite that many yet...
 209      */
 210     static SparseArray<String> sApplicationLaunchKeyCategories;
 211     static {
 212         sApplicationLaunchKeyCategories = new SparseArray<String>();
 213         sApplicationLaunchKeyCategories.append(
 214                 KeyEvent.KEYCODE_EXPLORER, Intent.CATEGORY_APP_BROWSER);
 215         sApplicationLaunchKeyCategories.append(
 216                 KeyEvent.KEYCODE_ENVELOPE, Intent.CATEGORY_APP_EMAIL);
 217         sApplicationLaunchKeyCategories.append(
 218                 KeyEvent.KEYCODE_CONTACTS, Intent.CATEGORY_APP_CONTACTS);
 219         sApplicationLaunchKeyCategories.append(
 220                 KeyEvent.KEYCODE_CALENDAR, Intent.CATEGORY_APP_CALENDAR);
 221         sApplicationLaunchKeyCategories.append(
 222                 KeyEvent.KEYCODE_MUSIC, Intent.CATEGORY_APP_MUSIC);
 223         sApplicationLaunchKeyCategories.append(
 224                 KeyEvent.KEYCODE_CALCULATOR, Intent.CATEGORY_APP_CALCULATOR);
 225     }
 226
 227     /** Amount of time (in milliseconds) to wait for windows drawn before powering on. */
 228     static final int WAITING_FOR_DRAWN_TIMEOUT = 1000;
 229
 230     /**
 231      * Lock protecting internal state.  Must not call out into window
 232      * manager with lock held.  (This lock will be acquired in places
 233      * where the window manager is calling in with its own lock held.)
 234      */
 235     private final Object mLock = new Object();
 236
 237     Context mContext;
 238     IWindowManager mWindowManager;
 239     WindowManagerFuncs mWindowManagerFuncs;
 240     WindowManagerInternal mWindowManagerInternal;
 241     PowerManager mPowerManager;
 242     DreamManagerInternal mDreamManagerInternal;
 243     IStatusBarService mStatusBarService;
 244     boolean mPreloadedRecentApps;
 245     final Object mServiceAquireLock = new Object();
 246     Vibrator mVibrator; // Vibrator for giving feedback of orientation changes
 247     SearchManager mSearchManager;
 248     AccessibilityManager mAccessibilityManager;
 249
 250     // Vibrator pattern for haptic feedback of a long press.
 251     long[] mLongPressVibePattern;
 252
 253     // Vibrator pattern for haptic feedback of virtual key press.
 254     long[] mVirtualKeyVibePattern;
 255
 256     // Vibrator pattern for a short vibration.
 257     long[] mKeyboardTapVibePattern;
 258
 259     // Vibrator pattern for a short vibration when tapping on an hour/minute tick of a Clock.
 260     long[] mClockTickVibePattern;
 261
 262     // Vibrator pattern for a short vibration when tapping on a day/month/year date of a Calendar.
 263     long[] mCalendarDateVibePattern;
 264
 265     // Vibrator pattern for haptic feedback during boot when safe mode is disabled.
 266     long[] mSafeModeDisabledVibePattern;
 267
 268     // Vibrator pattern for haptic feedback during boot when safe mode is enabled.
 269     long[] mSafeModeEnabledVibePattern;
 270
 271     /** If true, hitting shift & menu will broadcast Intent.ACTION_BUG_REPORT */
 272     boolean mEnableShiftMenuBugReports = false;
 273
 274     boolean mSafeMode;
 275     WindowState mStatusBar = null;
 276     int mStatusBarHeight;
 277     WindowState mNavigationBar = null;
 278     boolean mHasNavigationBar = false;
 279     boolean mCanHideNavigationBar = false;
 280     boolean mNavigationBarCanMove = false; // can the navigation bar ever move to the side?
 281     boolean mNavigationBarOnBottom = true; // is the navigation bar on the bottom *right now*?
 282     int[] mNavigationBarHeightForRotation = new int[4];
 283     int[] mNavigationBarWidthForRotation = new int[4];
 284
 285     boolean mBootMessageNeedsHiding;
 286     KeyguardServiceDelegate mKeyguardDelegate;
 287     final Runnable mWindowManagerDrawCallback = new Runnable() {
 288         @Override
 289         public void run() {
 290             if (DEBUG_WAKEUP) Slog.i(TAG, "All windows ready for display!");
 291             mHandler.sendEmptyMessage(MSG_WINDOW_MANAGER_DRAWN_COMPLETE);
 292         }
 293     };
 294     final ShowListener mKeyguardDelegateCallback = new ShowListener() {
 295         @Override
 296         public void onShown(IBinder windowToken) {
 297             if (DEBUG_WAKEUP) Slog.d(TAG, "mKeyguardDelegate.ShowListener.onShown.");
 298             mHandler.sendEmptyMessage(MSG_KEYGUARD_DRAWN_COMPLETE);
 299         }
 300     };
 301
 302     GlobalActions mGlobalActions;
 303     volatile boolean mPowerKeyHandled; // accessed from input reader and handler thread
 304     boolean mPendingPowerKeyUpCanceled;
 305     Handler mHandler;
 306     WindowState mLastInputMethodWindow = null;
 307     WindowState mLastInputMethodTargetWindow = null;
 308
 309     boolean mRecentsVisible;
 310     int mRecentAppsHeldModifiers;
 311     boolean mLanguageSwitchKeyPressed;
 312
 313     int mLidState = LID_ABSENT;
 314     int mCameraLensCoverState = CAMERA_LENS_COVER_ABSENT;
 315     boolean mHaveBuiltInKeyboard;
 316
 317     boolean mSystemReady;
 318     boolean mSystemBooted;
 319     boolean mHdmiPlugged;
 320     IUiModeManager mUiModeManager;
 321     int mUiMode;
 322     int mDockMode = Intent.EXTRA_DOCK_STATE_UNDOCKED;
 323     int mLidOpenRotation;
 324     int mCarDockRotation;
 325     int mDeskDockRotation;
 326     int mUndockedHdmiRotation;
 327     int mDemoHdmiRotation;
 328     boolean mDemoHdmiRotationLock;
 329
 330     boolean mWakeGestureEnabledSetting;
 331     MyWakeGestureListener mWakeGestureListener;
 332
 333     // Default display does not rotate, apps that require non-default orientation will have to
 334     // have the orientation emulated.
 335     private boolean mForceDefaultOrientation = false;
 336
 337     int mUserRotationMode = WindowManagerPolicy.USER_ROTATION_FREE;
 338     int mUserRotation = Surface.ROTATION_0;
 339     boolean mAccelerometerDefault;
 340
 341     boolean mSupportAutoRotation;
 342     int mAllowAllRotations = -1;
 343     boolean mCarDockEnablesAccelerometer;
 344     boolean mDeskDockEnablesAccelerometer;
 345     int mLidKeyboardAccessibility;
 346     int mLidNavigationAccessibility;
 347     boolean mLidControlsSleep;
 348     int mShortPressOnPowerBehavior = -1;
 349     int mLongPressOnPowerBehavior = -1;
 350     boolean mAwake;
 351     boolean mScreenOnEarly;
 352     boolean mScreenOnFully;
 353     ScreenOnListener mScreenOnListener;
 354     boolean mKeyguardDrawComplete;
 355     boolean mWindowManagerDrawComplete;
 356     boolean mOrientationSensorEnabled = false;
 357     int mCurrentAppOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
 358     boolean mHasSoftInput = false;
 359     boolean mTranslucentDecorEnabled = true;
 360
 361     int mPointerLocationMode = 0; // guarded by mLock
 362
 363     // The last window we were told about in focusChanged.
 364     WindowState mFocusedWindow;
 365     IApplicationToken mFocusedApp;
 366
 367     PointerLocationView mPointerLocationView;
 368
 369     // The current size of the screen; really; extends into the overscan area of
 370     // the screen and doesn't account for any system elements like the status bar.
 371     int mOverscanScreenLeft, mOverscanScreenTop;
 372     int mOverscanScreenWidth, mOverscanScreenHeight;
 373     // The current visible size of the screen; really; (ir)regardless of whether the status
 374     // bar can be hidden but not extending into the overscan area.
 375     int mUnrestrictedScreenLeft, mUnrestrictedScreenTop;
 376     int mUnrestrictedScreenWidth, mUnrestrictedScreenHeight;
 377     // Like mOverscanScreen*, but allowed to move into the overscan region where appropriate.
 378     int mRestrictedOverscanScreenLeft, mRestrictedOverscanScreenTop;
 379     int mRestrictedOverscanScreenWidth, mRestrictedOverscanScreenHeight;
 380     // The current size of the screen; these may be different than (0,0)-(dw,dh)
 381     // if the status bar can't be hidden; in that case it effectively carves out
 382     // that area of the display from all other windows.
 383     int mRestrictedScreenLeft, mRestrictedScreenTop;
 384     int mRestrictedScreenWidth, mRestrictedScreenHeight;
 385     // During layout, the current screen borders accounting for any currently
 386     // visible system UI elements.
 387     int mSystemLeft, mSystemTop, mSystemRight, mSystemBottom;
 388     // For applications requesting stable content insets, these are them.
 389     int mStableLeft, mStableTop, mStableRight, mStableBottom;
 390     // For applications requesting stable content insets but have also set the
 391     // fullscreen window flag, these are the stable dimensions without the status bar.
 392     int mStableFullscreenLeft, mStableFullscreenTop;
 393     int mStableFullscreenRight, mStableFullscreenBottom;
 394     // During layout, the current screen borders with all outer decoration
 395     // (status bar, input method dock) accounted for.
 396     int mCurLeft, mCurTop, mCurRight, mCurBottom;
 397     // During layout, the frame in which content should be displayed
 398     // to the user, accounting for all screen decoration except for any
 399     // space they deem as available for other content.  This is usually
 400     // the same as mCur*, but may be larger if the screen decor has supplied
 401     // content insets.
 402     int mContentLeft, mContentTop, mContentRight, mContentBottom;
 403     // During layout, the frame in which voice content should be displayed
 404     // to the user, accounting for all screen decoration except for any
 405     // space they deem as available for other content.
 406     int mVoiceContentLeft, mVoiceContentTop, mVoiceContentRight, mVoiceContentBottom;
 407     // During layout, the current screen borders along which input method
 408     // windows are placed.
 409     int mDockLeft, mDockTop, mDockRight, mDockBottom;
 410     // During layout, the layer at which the doc window is placed.
 411     int mDockLayer;
 412     // During layout, this is the layer of the status bar.
 413     int mStatusBarLayer;
 414     int mLastSystemUiFlags;
 415     // Bits that we are in the process of clearing, so we want to prevent
 416     // them from being set by applications until everything has been updated
 417     // to have them clear.
 418     int mResettingSystemUiFlags = 0;
 419     // Bits that we are currently always keeping cleared.
 420     int mForceClearedSystemUiFlags = 0;
 421     // What we last reported to system UI about whether the compatibility
 422     // menu needs to be displayed.
 423     boolean mLastFocusNeedsMenu = false;
 424
 425     FakeWindow mHideNavFakeWindow = null;
 426
 427     static final Rect mTmpParentFrame = new Rect();
 428     static final Rect mTmpDisplayFrame = new Rect();
 429     static final Rect mTmpOverscanFrame = new Rect();
 430     static final Rect mTmpContentFrame = new Rect();
 431     static final Rect mTmpVisibleFrame = new Rect();
 432     static final Rect mTmpDecorFrame = new Rect();
 433     static final Rect mTmpStableFrame = new Rect();
 434     static final Rect mTmpNavigationFrame = new Rect();
 435
 436     WindowState mTopFullscreenOpaqueWindowState;
 437     HashSet<IApplicationToken> mAppsToBeHidden = new HashSet<IApplicationToken>();
 438     HashSet<IApplicationToken> mAppsThatDismissKeyguard = new HashSet<IApplicationToken>();
 439     boolean mTopIsFullscreen;
 440     boolean mForceStatusBar;
 441     boolean mForceStatusBarFromKeyguard;
 442     boolean mHideLockScreen;
 443     boolean mForcingShowNavBar;
 444     int mForcingShowNavBarLayer;
 445
 446     // States of keyguard dismiss.
 447     private static final int DISMISS_KEYGUARD_NONE = 0; // Keyguard not being dismissed.
 448     private static final int DISMISS_KEYGUARD_START = 1; // Keyguard needs to be dismissed.
 449     private static final int DISMISS_KEYGUARD_CONTINUE = 2; // Keyguard has been dismissed.
 450     int mDismissKeyguard = DISMISS_KEYGUARD_NONE;
 451
 452     /** The window that is currently dismissing the keyguard. Dismissing the keyguard must only
 453      * be done once per window. */
 454     private WindowState mWinDismissingKeyguard;
 455
 456     /** The window that is currently showing "over" the keyguard. If there is an app window
 457      * belonging to another app on top of this the keyguard shows. If there is a fullscreen
 458      * app window under this, still dismiss the keyguard but don't show the app underneath. Show
 459      * the wallpaper. */
 460     private WindowState mWinShowWhenLocked;
 461
 462     boolean mShowingLockscreen;
 463     boolean mShowingDream;
 464     boolean mDreamingLockscreen;
 465     boolean mHomePressed;
 466     boolean mHomeConsumed;
 467     boolean mHomeDoubleTapPending;
 468     Intent mHomeIntent;
 469     Intent mCarDockIntent;
 470     Intent mDeskDockIntent;
 471     boolean mSearchKeyShortcutPending;
 472     boolean mConsumeSearchKeyUp;
 473     boolean mAssistKeyLongPressed;
 474     boolean mPendingMetaAction;
 475
 476     // support for activating the lock screen while the screen is on
 477     boolean mAllowLockscreenWhenOn;
 478     int mLockScreenTimeout;
 479     boolean mLockScreenTimerActive;
 480
 481     // Behavior of ENDCALL Button.  (See Settings.System.END_BUTTON_BEHAVIOR.)
 482     int mEndcallBehavior;
 483
 484     // Behavior of POWER button while in-call and screen on.
 485     // (See Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR.)
 486     int mIncallPowerBehavior;
 487
 488     Display mDisplay;
 489
 490     int mLandscapeRotation = 0;  // default landscape rotation
 491     int mSeascapeRotation = 0;   // "other" landscape rotation, 180 degrees from mLandscapeRotation
 492     int mPortraitRotation = 0;   // default portrait rotation
 493     int mUpsideDownRotation = 0; // "other" portrait rotation
 494
 495     int mOverscanLeft = 0;
 496     int mOverscanTop = 0;
 497     int mOverscanRight = 0;
 498     int mOverscanBottom = 0;
 499
 500     // What we do when the user long presses on home
 501     private int mLongPressOnHomeBehavior;
 502
 503     // What we do when the user double-taps on home
 504     private int mDoubleTapOnHomeBehavior;
 505
 506     // Screenshot trigger states
 507     // Time to volume and power must be pressed within this interval of each other.
 508     private static final long SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS = 150;
 509     // Increase the chord delay when taking a screenshot from the keyguard
 510     private static final float KEYGUARD_SCREENSHOT_CHORD_DELAY_MULTIPLIER = 2.5f;
 511     private boolean mScreenshotChordEnabled;
 512     private boolean mVolumeDownKeyTriggered;
 513     private long mVolumeDownKeyTime;
 514     private boolean mVolumeDownKeyConsumedByScreenshotChord;
 515     private boolean mVolumeUpKeyTriggered;
 516     private boolean mPowerKeyTriggered;
 517     private long mPowerKeyTime;
 518
 519     /* The number of steps between min and max brightness */
 520     private static final int BRIGHTNESS_STEPS = 10;
 521
 522     SettingsObserver mSettingsObserver;
 523     ShortcutManager mShortcutManager;
 524     PowerManager.WakeLock mBroadcastWakeLock;
 525     boolean mHavePendingMediaKeyRepeatWithWakeLock;
 526
 527     private int mCurrentUserId;
 528
 529     // Maps global key codes to the components that will handle them.
 530     private GlobalKeyManager mGlobalKeyManager;
 531
 532     // Fallback actions by key code.
 533     private final SparseArray<KeyCharacterMap.FallbackAction> mFallbackActions =
 534             new SparseArray<KeyCharacterMap.FallbackAction>();
 535
 536     private final LogDecelerateInterpolator mLogDecelerateInterpolator
 537             = new LogDecelerateInterpolator(100, 0);
 538
 539     private static final int MSG_ENABLE_POINTER_LOCATION = 1;
 540     private static final int MSG_DISABLE_POINTER_LOCATION = 2;
 541     private static final int MSG_DISPATCH_MEDIA_KEY_WITH_WAKE_LOCK = 3;
 542     private static final int MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK = 4;
 543     private static final int MSG_KEYGUARD_DRAWN_COMPLETE = 5;
 544     private static final int MSG_KEYGUARD_DRAWN_TIMEOUT = 6;
 545     private static final int MSG_WINDOW_MANAGER_DRAWN_COMPLETE = 7;
 546     private static final int MSG_DISPATCH_SHOW_RECENTS = 9;
 547     private static final int MSG_DISPATCH_SHOW_GLOBAL_ACTIONS = 10;
 548     private static final int MSG_HIDE_BOOT_MESSAGE = 11;
 549     private static final int MSG_LAUNCH_VOICE_ASSIST_WITH_WAKE_LOCK = 12;
 550
 551     private class PolicyHandler extends Handler {
 552         @Override
 553         public void handleMessage(Message msg) {
 554             switch (msg.what) {
 555                 case MSG_ENABLE_POINTER_LOCATION:
 556                     enablePointerLocation();
 557                     break;
 558                 case MSG_DISABLE_POINTER_LOCATION:
 559                     disablePointerLocation();
 560                     break;
 561                 case MSG_DISPATCH_MEDIA_KEY_WITH_WAKE_LOCK:
 562                     dispatchMediaKeyWithWakeLock((KeyEvent)msg.obj);
 563                     break;
 564                 case MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK:
 565                     dispatchMediaKeyRepeatWithWakeLock((KeyEvent)msg.obj);
 566                     break;
 567                 case MSG_DISPATCH_SHOW_RECENTS:
 568                     showRecentApps(false);
 569                     break;
 570                 case MSG_DISPATCH_SHOW_GLOBAL_ACTIONS:
 571                     showGlobalActionsInternal();
 572                     break;
 573                 case MSG_KEYGUARD_DRAWN_COMPLETE:
 574                     if (DEBUG_WAKEUP) Slog.w(TAG, "Setting mKeyguardDrawComplete");
 575                     finishKeyguardDrawn();
 576                     break;
 577                 case MSG_KEYGUARD_DRAWN_TIMEOUT:
 578                     Slog.w(TAG, "Keyguard drawn timeout. Setting mKeyguardDrawComplete");
 579                     finishKeyguardDrawn();
 580                     break;
 581                 case MSG_WINDOW_MANAGER_DRAWN_COMPLETE:
 582                     if (DEBUG_WAKEUP) Slog.w(TAG, "Setting mWindowManagerDrawComplete");
 583                     finishWindowsDrawn();
 584                     break;
 585                 case MSG_HIDE_BOOT_MESSAGE:
 586                     handleHideBootMessage();
 587                     break;
 588                 case MSG_LAUNCH_VOICE_ASSIST_WITH_WAKE_LOCK:
 589                     launchVoiceAssistWithWakeLock(msg.arg1 != 0);
 590                     break;
 591             }
 592         }
 593     }
 594
 595     private UEventObserver mHDMIObserver = new UEventObserver() {
 596         @Override
 597         public void onUEvent(UEventObserver.UEvent event) {
 598             setHdmiPlugged("1".equals(event.get("SWITCH_STATE")));
 599         }
 600     };
 601
 602     class SettingsObserver extends ContentObserver {
 603         SettingsObserver(Handler handler) {
 604             super(handler);
 605         }
 606
 607         void observe() {
 608             // Observe all users' changes
 609             ContentResolver resolver = mContext.getContentResolver();
 610             resolver.registerContentObserver(Settings.System.getUriFor(
 611                     Settings.System.END_BUTTON_BEHAVIOR), false, this,
 612                     UserHandle.USER_ALL);
 613             resolver.registerContentObserver(Settings.Secure.getUriFor(
 614                     Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR), false, this,
 615                     UserHandle.USER_ALL);
 616             resolver.registerContentObserver(Settings.Secure.getUriFor(
 617                     Settings.Secure.WAKE_GESTURE_ENABLED), false, this,
 618                     UserHandle.USER_ALL);
 619             resolver.registerContentObserver(Settings.System.getUriFor(
 620                     Settings.System.ACCELEROMETER_ROTATION), false, this,
 621                     UserHandle.USER_ALL);
 622             resolver.registerContentObserver(Settings.System.getUriFor(
 623                     Settings.System.USER_ROTATION), false, this,
 624                     UserHandle.USER_ALL);
 625             resolver.registerContentObserver(Settings.System.getUriFor(
 626                     Settings.System.SCREEN_OFF_TIMEOUT), false, this,
 627                     UserHandle.USER_ALL);
 628             resolver.registerContentObserver(Settings.System.getUriFor(
 629                     Settings.System.POINTER_LOCATION), false, this,
 630                     UserHandle.USER_ALL);
 631             resolver.registerContentObserver(Settings.Secure.getUriFor(
 632                     Settings.Secure.DEFAULT_INPUT_METHOD), false, this,
 633                     UserHandle.USER_ALL);
 634             resolver.registerContentObserver(Settings.Secure.getUriFor(
 635                     Settings.Secure.IMMERSIVE_MODE_CONFIRMATIONS), false, this,
 636                     UserHandle.USER_ALL);
 637             resolver.registerContentObserver(Settings.Global.getUriFor(
 638                     Settings.Global.POLICY_CONTROL), false, this,
 639                     UserHandle.USER_ALL);
 640             updateSettings();
 641         }
 642
 643         @Override public void onChange(boolean selfChange) {
 644             updateSettings();
 645             updateRotation(false);
 646         }
 647     }
 648
 649     class MyWakeGestureListener extends WakeGestureListener {
 650         MyWakeGestureListener(Context context, Handler handler) {
 651             super(context, handler);
 652         }
 653
 654         @Override
 655         public void onWakeUp() {
 656             synchronized (mLock) {
 657                 if (shouldEnableWakeGestureLp()) {
 658                     performHapticFeedbackLw(null, HapticFeedbackConstants.VIRTUAL_KEY, false);
 659                     mPowerManager.wakeUp(SystemClock.uptimeMillis());
 660                 }
 661             }
 662         }
 663     }
 664
 665     class MyOrientationListener extends WindowOrientationListener {
 666         MyOrientationListener(Context context, Handler handler) {
 667             super(context, handler);
 668         }
 669
 670         @Override
 671         public void onProposedRotationChanged(int rotation) {
 672             if (localLOGV) Slog.v(TAG, "onProposedRotationChanged, rotation=" + rotation);
 673             updateRotation(false);
 674         }
 675     }
 676     MyOrientationListener mOrientationListener;
 677
 678     private final BarController mStatusBarController = new BarController("StatusBar",
 679             View.STATUS_BAR_TRANSIENT,
 680             View.STATUS_BAR_UNHIDE,
 681             View.STATUS_BAR_TRANSLUCENT,
 682             StatusBarManager.WINDOW_STATUS_BAR,
 683             WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
 684
 685     private final BarController mNavigationBarController = new BarController("NavigationBar",
 686             View.NAVIGATION_BAR_TRANSIENT,
 687             View.NAVIGATION_BAR_UNHIDE,
 688             View.NAVIGATION_BAR_TRANSLUCENT,
 689             StatusBarManager.WINDOW_NAVIGATION_BAR,
 690             WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
 691
 692     private ImmersiveModeConfirmation mImmersiveModeConfirmation;
 693
 694     private SystemGesturesPointerEventListener mSystemGestures;
 695
 696     IStatusBarService getStatusBarService() {
 697         synchronized (mServiceAquireLock) {
 698             if (mStatusBarService == null) {
 699                 mStatusBarService = IStatusBarService.Stub.asInterface(
 700                         ServiceManager.getService("statusbar"));
 701             }
 702             return mStatusBarService;
 703         }
 704     }
 705
 706     /*
 707      * We always let the sensor be switched on by default except when
 708      * the user has explicitly disabled sensor based rotation or when the
 709      * screen is switched off.
 710      */
 711     boolean needSensorRunningLp() {
 712         if (mSupportAutoRotation) {
 713             if (mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR
 714                     || mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR
 715                     || mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT
 716                     || mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE) {
 717                 // If the application has explicitly requested to follow the
 718                 // orientation, then we need to turn the sensor on.
 719                 return true;
 720             }
 721         }
 722         if ((mCarDockEnablesAccelerometer && mDockMode == Intent.EXTRA_DOCK_STATE_CAR) ||
 723                 (mDeskDockEnablesAccelerometer && (mDockMode == Intent.EXTRA_DOCK_STATE_DESK
 724                         || mDockMode == Intent.EXTRA_DOCK_STATE_LE_DESK
 725                         || mDockMode == Intent.EXTRA_DOCK_STATE_HE_DESK))) {
 726             // enable accelerometer if we are docked in a dock that enables accelerometer
 727             // orientation management,
 728             return true;
 729         }
 730         if (mUserRotationMode == USER_ROTATION_LOCKED) {
 731             // If the setting for using the sensor by default is enabled, then
 732             // we will always leave it on.  Note that the user could go to
 733             // a window that forces an orientation that does not use the
 734             // sensor and in theory we could turn it off... however, when next
 735             // turning it on we won't have a good value for the current
 736             // orientation for a little bit, which can cause orientation
 737             // changes to lag, so we'd like to keep it always on.  (It will
 738             // still be turned off when the screen is off.)
 739             return false;
 740         }
 741         return mSupportAutoRotation;
 742     }
 743
 744     /*
 745      * Various use cases for invoking this function
 746      * screen turning off, should always disable listeners if already enabled
 747      * screen turned on and current app has sensor based orientation, enable listeners
 748      * if not already enabled
 749      * screen turned on and current app does not have sensor orientation, disable listeners if
 750      * already enabled
 751      * screen turning on and current app has sensor based orientation, enable listeners if needed
 752      * screen turning on and current app has nosensor based orientation, do nothing
 753      */
 754     void updateOrientationListenerLp() {
 755         if (!mOrientationListener.canDetectOrientation()) {
 756             // If sensor is turned off or nonexistent for some reason
 757             return;
 758         }
 759         //Could have been invoked due to screen turning on or off or
 760         //change of the currently visible window's orientation
 761         if (localLOGV) Slog.v(TAG, "mScreenOnEarly=" + mScreenOnEarly
 762                 + ", mAwake=" + mAwake + ", mCurrentAppOrientation=" + mCurrentAppOrientation
 763                 + ", mOrientationSensorEnabled=" + mOrientationSensorEnabled);
 764         boolean disable = true;
 765         if (mScreenOnEarly && mAwake) {
 766             if (needSensorRunningLp()) {
 767                 disable = false;
 768                 //enable listener if not already enabled
 769                 if (!mOrientationSensorEnabled) {
 770                     mOrientationListener.enable();
 771                     if(localLOGV) Slog.v(TAG, "Enabling listeners");
 772                     mOrientationSensorEnabled = true;
 773                 }
 774             }
 775         }
 776         //check if sensors need to be disabled
 777         if (disable && mOrientationSensorEnabled) {
 778             mOrientationListener.disable();
 779             if(localLOGV) Slog.v(TAG, "Disabling listeners");
 780             mOrientationSensorEnabled = false;
 781         }
 782     }
 783
 784     private void interceptPowerKeyDown(boolean handled) {
 785         mPowerKeyHandled = handled;
 786         if (!handled) {
 787             mHandler.postDelayed(mPowerLongPress,
 788                     ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout());
 789         }
 790     }
 791
 792     private boolean interceptPowerKeyUp(boolean canceled) {
 793         if (!mPowerKeyHandled) {
 794             mHandler.removeCallbacks(mPowerLongPress);
 795             return !canceled;
 796         }
 797         return false;
 798     }
 799
 800     private void cancelPendingPowerKeyAction() {
 801         if (!mPowerKeyHandled) {
 802             mHandler.removeCallbacks(mPowerLongPress);
 803         }
 804         if (mPowerKeyTriggered) {
 805             mPendingPowerKeyUpCanceled = true;
 806         }
 807     }
 808
 809     private void interceptScreenshotChord() {
 810         if (mScreenshotChordEnabled
 811                 && mVolumeDownKeyTriggered && mPowerKeyTriggered && !mVolumeUpKeyTriggered) {
 812             final long now = SystemClock.uptimeMillis();
 813             if (now <= mVolumeDownKeyTime + SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS
 814                     && now <= mPowerKeyTime + SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS) {
 815                 mVolumeDownKeyConsumedByScreenshotChord = true;
 816                 cancelPendingPowerKeyAction();
 817
 818                 mHandler.postDelayed(mScreenshotRunnable, getScreenshotChordLongPressDelay());
 819             }
 820         }
 821     }
 822
 823     private long getScreenshotChordLongPressDelay() {
 824         if (mKeyguardDelegate.isShowing()) {
 825             // Double the time it takes to take a screenshot from the keyguard
 826             return (long) (KEYGUARD_SCREENSHOT_CHORD_DELAY_MULTIPLIER *
 827                     ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout());
 828         }
 829         return ViewConfiguration.get(mContext).getDeviceGlobalActionKeyTimeout();
 830     }
 831
 832     private void cancelPendingScreenshotChordAction() {
 833         mHandler.removeCallbacks(mScreenshotRunnable);
 834     }
 835
 836     private void powerShortPress(long eventTime) {
 837         if (mShortPressOnPowerBehavior < 0) {
 838             mShortPressOnPowerBehavior = mContext.getResources().getInteger(
 839                     com.android.internal.R.integer.config_shortPressOnPowerBehavior);
 840         }
 841
 842         switch (mShortPressOnPowerBehavior) {
 843             case SHORT_PRESS_POWER_NOTHING:
 844                 break;
 845             case SHORT_PRESS_POWER_GO_TO_SLEEP:
 846                 mPowerManager.goToSleep(eventTime,
 847                         PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON, 0);
 848                 break;
 849             case SHORT_PRESS_POWER_REALLY_GO_TO_SLEEP:
 850                 mPowerManager.goToSleep(eventTime,
 851                         PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON,
 852                         PowerManager.GO_TO_SLEEP_FLAG_NO_DOZE);
 853                 break;
 854             case SHORT_PRESS_POWER_REALLY_GO_TO_SLEEP_AND_GO_HOME:
 855                 mPowerManager.goToSleep(eventTime,
 856                         PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON,
 857                         PowerManager.GO_TO_SLEEP_FLAG_NO_DOZE);
 858                 launchHomeFromHotKey();
 859                 break;
 860         }
 861     }
 862
 863     private final Runnable mPowerLongPress = new Runnable() {
 864         @Override
 865         public void run() {
 866             // The context isn't read
 867             if (mLongPressOnPowerBehavior < 0) {
 868                 mLongPressOnPowerBehavior = mContext.getResources().getInteger(
 869                         com.android.internal.R.integer.config_longPressOnPowerBehavior);
 870             }
 871             int resolvedBehavior = mLongPressOnPowerBehavior;
 872             if (FactoryTest.isLongPressOnPowerOffEnabled()) {
 873                 resolvedBehavior = LONG_PRESS_POWER_SHUT_OFF_NO_CONFIRM;
 874             }
 875
 876             switch (resolvedBehavior) {
 877             case LONG_PRESS_POWER_NOTHING:
 878                 break;
 879             case LONG_PRESS_POWER_GLOBAL_ACTIONS:
 880                 mPowerKeyHandled = true;
 881                 if (!performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false)) {
 882                     performAuditoryFeedbackForAccessibilityIfNeed();
 883                 }
 884                 showGlobalActionsInternal();
 885                 break;
 886             case LONG_PRESS_POWER_SHUT_OFF:
 887             case LONG_PRESS_POWER_SHUT_OFF_NO_CONFIRM:
 888                 mPowerKeyHandled = true;
 889                 performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false);
 890                 sendCloseSystemWindows(SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS);
 891                 mWindowManagerFuncs.shutdown(resolvedBehavior == LONG_PRESS_POWER_SHUT_OFF);
 892                 break;
 893             }
 894         }
 895     };
 896
 897     private final Runnable mScreenshotRunnable = new Runnable() {
 898         @Override
 899         public void run() {
 900             takeScreenshot();
 901         }
 902     };
 903
 904     @Override
 905     public void showGlobalActions() {
 906         mHandler.removeMessages(MSG_DISPATCH_SHOW_GLOBAL_ACTIONS);
 907         mHandler.sendEmptyMessage(MSG_DISPATCH_SHOW_GLOBAL_ACTIONS);
 908     }
 909
 910     void showGlobalActionsInternal() {
 911         sendCloseSystemWindows(SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS);
 912         if (mGlobalActions == null) {
 913             mGlobalActions = new GlobalActions(mContext, mWindowManagerFuncs);
 914         }
 915         final boolean keyguardShowing = keyguardIsShowingTq();
 916         mGlobalActions.showDialog(keyguardShowing, isDeviceProvisioned());
 917         if (keyguardShowing) {
 918             // since it took two seconds of long press to bring this up,
 919             // poke the wake lock so they have some time to see the dialog.
 920             mPowerManager.userActivity(SystemClock.uptimeMillis(), false);
 921         }
 922     }
 923
 924     boolean isDeviceProvisioned() {
 925         return Settings.Global.getInt(
 926                 mContext.getContentResolver(), Settings.Global.DEVICE_PROVISIONED, 0) != 0;
 927     }
 928
 929     boolean isUserSetupComplete() {
 930         return Settings.Secure.getIntForUser(mContext.getContentResolver(),
 931                 Settings.Secure.USER_SETUP_COMPLETE, 0, UserHandle.USER_CURRENT) != 0;
 932     }
 933
 934     private void handleLongPressOnHome() {
 935         if (mLongPressOnHomeBehavior != LONG_PRESS_HOME_NOTHING) {
 936             mHomeConsumed = true;
 937             performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false);
 938
 939             if (mLongPressOnHomeBehavior == LONG_PRESS_HOME_RECENT_SYSTEM_UI) {
 940                 toggleRecentApps();
 941             } else if (mLongPressOnHomeBehavior == LONG_PRESS_HOME_ASSIST) {
 942                 launchAssistAction();
 943             }
 944         }
 945     }
 946
 947     private void handleDoubleTapOnHome() {
 948         if (mDoubleTapOnHomeBehavior == DOUBLE_TAP_HOME_RECENT_SYSTEM_UI) {
 949             mHomeConsumed = true;
 950             toggleRecentApps();
 951         }
 952     }
 953
 954     private final Runnable mHomeDoubleTapTimeoutRunnable = new Runnable() {
 955         @Override
 956         public void run() {
 957             if (mHomeDoubleTapPending) {
 958                 mHomeDoubleTapPending = false;
 959                 launchHomeFromHotKey();
 960             }
 961         }
 962     };
 963
 964     /** {@inheritDoc} */
 965     @Override
 966     public void init(Context context, IWindowManager windowManager,
 967             WindowManagerFuncs windowManagerFuncs) {
 968         mContext = context;
 969         mWindowManager = windowManager;
 970         mWindowManagerFuncs = windowManagerFuncs;
 971         mWindowManagerInternal = LocalServices.getService(WindowManagerInternal.class);
 972         mDreamManagerInternal = LocalServices.getService(DreamManagerInternal.class);
 973
 974         mHandler = new PolicyHandler();
 975         mWakeGestureListener = new MyWakeGestureListener(mContext, mHandler);
 976         mOrientationListener = new MyOrientationListener(mContext, mHandler);
 977         try {
 978             mOrientationListener.setCurrentRotation(windowManager.getRotation());
 979         } catch (RemoteException ex) { }
 980         mSettingsObserver = new SettingsObserver(mHandler);
 981         mSettingsObserver.observe();
 982         mShortcutManager = new ShortcutManager(context, mHandler);
 983         mShortcutManager.observe();
 984         mUiMode = context.getResources().getInteger(
 985                 com.android.internal.R.integer.config_defaultUiModeType);
 986         mHomeIntent =  new Intent(Intent.ACTION_MAIN, null);
 987         mHomeIntent.addCategory(Intent.CATEGORY_HOME);
 988         mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
 989                 | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
 990         mCarDockIntent =  new Intent(Intent.ACTION_MAIN, null);
 991         mCarDockIntent.addCategory(Intent.CATEGORY_CAR_DOCK);
 992         mCarDockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
 993                 | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
 994         mDeskDockIntent =  new Intent(Intent.ACTION_MAIN, null);
 995         mDeskDockIntent.addCategory(Intent.CATEGORY_DESK_DOCK);
 996         mDeskDockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
 997                 | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
 998
 999         mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
1000         mBroadcastWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
1001                 "PhoneWindowManager.mBroadcastWakeLock");
1002         mEnableShiftMenuBugReports = "1".equals(SystemProperties.get("ro.debuggable"));
1003         mSupportAutoRotation = mContext.getResources().getBoolean(
1004                 com.android.internal.R.bool.config_supportAutoRotation);
1005         mLidOpenRotation = readRotation(
1006                 com.android.internal.R.integer.config_lidOpenRotation);
1007         mCarDockRotation = readRotation(
1008                 com.android.internal.R.integer.config_carDockRotation);
1009         mDeskDockRotation = readRotation(
1010                 com.android.internal.R.integer.config_deskDockRotation);
1011         mUndockedHdmiRotation = readRotation(
1012                 com.android.internal.R.integer.config_undockedHdmiRotation);
1013         mCarDockEnablesAccelerometer = mContext.getResources().getBoolean(
1014                 com.android.internal.R.bool.config_carDockEnablesAccelerometer);
1015         mDeskDockEnablesAccelerometer = mContext.getResources().getBoolean(
1016                 com.android.internal.R.bool.config_deskDockEnablesAccelerometer);
1017         mLidKeyboardAccessibility = mContext.getResources().getInteger(
1018                 com.android.internal.R.integer.config_lidKeyboardAccessibility);
1019         mLidNavigationAccessibility = mContext.getResources().getInteger(
1020                 com.android.internal.R.integer.config_lidNavigationAccessibility);
1021         mLidControlsSleep = mContext.getResources().getBoolean(
1022                 com.android.internal.R.bool.config_lidControlsSleep);
1023         mTranslucentDecorEnabled = mContext.getResources().getBoolean(
1024                 com.android.internal.R.bool.config_enableTranslucentDecor);
1025         readConfigurationDependentBehaviors();
1026
1027         mAccessibilityManager = (AccessibilityManager) context.getSystemService(
1028                 Context.ACCESSIBILITY_SERVICE);
1029
1030         // register for dock events
1031         IntentFilter filter = new IntentFilter();
1032         filter.addAction(UiModeManager.ACTION_ENTER_CAR_MODE);
1033         filter.addAction(UiModeManager.ACTION_EXIT_CAR_MODE);
1034         filter.addAction(UiModeManager.ACTION_ENTER_DESK_MODE);
1035         filter.addAction(UiModeManager.ACTION_EXIT_DESK_MODE);
1036         filter.addAction(Intent.ACTION_DOCK_EVENT);
1037         Intent intent = context.registerReceiver(mDockReceiver, filter);
1038         if (intent != null) {
1039             // Retrieve current sticky dock event broadcast.
1040             mDockMode = intent.getIntExtra(Intent.EXTRA_DOCK_STATE,
1041                     Intent.EXTRA_DOCK_STATE_UNDOCKED);
1042         }
1043
1044         // register for dream-related broadcasts
1045         filter = new IntentFilter();
1046         filter.addAction(Intent.ACTION_DREAMING_STARTED);
1047         filter.addAction(Intent.ACTION_DREAMING_STOPPED);
1048         context.registerReceiver(mDreamReceiver, filter);
1049
1050         // register for multiuser-relevant broadcasts
1051         filter = new IntentFilter(Intent.ACTION_USER_SWITCHED);
1052         context.registerReceiver(mMultiuserReceiver, filter);
1053
1054         // monitor for system gestures
1055         mSystemGestures = new SystemGesturesPointerEventListener(context,
1056                 new SystemGesturesPointerEventListener.Callbacks() {
1057                     @Override
1058                     public void onSwipeFromTop() {
1059                         if (mStatusBar != null) {
1060                             requestTransientBars(mStatusBar);
1061                         }
1062                     }
1063                     @Override
1064                     public void onSwipeFromBottom() {
1065                         if (mNavigationBar != null && mNavigationBarOnBottom) {
1066                             requestTransientBars(mNavigationBar);
1067                         }
1068                     }
1069                     @Override
1070                     public void onSwipeFromRight() {
1071                         if (mNavigationBar != null && !mNavigationBarOnBottom) {
1072                             requestTransientBars(mNavigationBar);
1073                         }
1074                     }
1075                     @Override
1076                     public void onDebug() {
1077                         // no-op
1078                     }
1079                 });
1080         mImmersiveModeConfirmation = new ImmersiveModeConfirmation(mContext);
1081         mWindowManagerFuncs.registerPointerEventListener(mSystemGestures);
1082
1083         mVibrator = (Vibrator)context.getSystemService(Context.VIBRATOR_SERVICE);
1084         mLongPressVibePattern = getLongIntArray(mContext.getResources(),
1085                 com.android.internal.R.array.config_longPressVibePattern);
1086         mVirtualKeyVibePattern = getLongIntArray(mContext.getResources(),
1087                 com.android.internal.R.array.config_virtualKeyVibePattern);
1088         mKeyboardTapVibePattern = getLongIntArray(mContext.getResources(),
1089                 com.android.internal.R.array.config_keyboardTapVibePattern);
1090         mClockTickVibePattern = getLongIntArray(mContext.getResources(),
1091                 com.android.internal.R.array.config_clockTickVibePattern);
1092         mCalendarDateVibePattern = getLongIntArray(mContext.getResources(),
1093                 com.android.internal.R.array.config_calendarDateVibePattern);
1094         mSafeModeDisabledVibePattern = getLongIntArray(mContext.getResources(),
1095                 com.android.internal.R.array.config_safeModeDisabledVibePattern);
1096         mSafeModeEnabledVibePattern = getLongIntArray(mContext.getResources(),
1097                 com.android.internal.R.array.config_safeModeEnabledVibePattern);
1098
1099         mScreenshotChordEnabled = mContext.getResources().getBoolean(
1100                 com.android.internal.R.bool.config_enableScreenshotChord);
1101
1102         mGlobalKeyManager = new GlobalKeyManager(mContext);
1103
1104         // Controls rotation and the like.
1105         initializeHdmiState();
1106
1107         // Match current screen state.
1108         if (!mPowerManager.isInteractive()) {
1109             goingToSleep(WindowManagerPolicy.OFF_BECAUSE_OF_USER);
1110         }
1111     }
1112
1113     /**
1114      * Read values from config.xml that may be overridden depending on
1115      * the configuration of the device.
1116      * eg. Disable long press on home goes to recents on sw600dp.
1117      */
1118     private void readConfigurationDependentBehaviors() {
1119         mLongPressOnHomeBehavior = mContext.getResources().getInteger(
1120                 com.android.internal.R.integer.config_longPressOnHomeBehavior);
1121         if (mLongPressOnHomeBehavior < LONG_PRESS_HOME_NOTHING ||
1122                 mLongPressOnHomeBehavior > LONG_PRESS_HOME_ASSIST) {
1123             mLongPressOnHomeBehavior = LONG_PRESS_HOME_NOTHING;
1124         }
1125
1126         mDoubleTapOnHomeBehavior = mContext.getResources().getInteger(
1127                 com.android.internal.R.integer.config_doubleTapOnHomeBehavior);
1128         if (mDoubleTapOnHomeBehavior < DOUBLE_TAP_HOME_NOTHING ||
1129                 mDoubleTapOnHomeBehavior > DOUBLE_TAP_HOME_RECENT_SYSTEM_UI) {
1130             mDoubleTapOnHomeBehavior = LONG_PRESS_HOME_NOTHING;
1131         }
1132     }
1133
1134     @Override
1135     public void setInitialDisplaySize(Display display, int width, int height, int density) {
1136         // This method might be called before the policy has been fully initialized
1137         // or for other displays we don't care about.
1138         if (mContext == null || display.getDisplayId() != Display.DEFAULT_DISPLAY) {
1139             return;
1140         }
1141         mDisplay = display;
1142
1143         final Resources res = mContext.getResources();
1144         int shortSize, longSize;
1145         if (width > height) {
1146             shortSize = height;
1147             longSize = width;
1148             mLandscapeRotation = Surface.ROTATION_0;
1149             mSeascapeRotation = Surface.ROTATION_180;
1150             if (res.getBoolean(com.android.internal.R.bool.config_reverseDefaultRotation)) {
1151                 mPortraitRotation = Surface.ROTATION_90;
1152                 mUpsideDownRotation = Surface.ROTATION_270;
1153             } else {
1154                 mPortraitRotation = Surface.ROTATION_270;
1155                 mUpsideDownRotation = Surface.ROTATION_90;
1156             }
1157         } else {
1158             shortSize = width;
1159             longSize = height;
1160             mPortraitRotation = Surface.ROTATION_0;
1161             mUpsideDownRotation = Surface.ROTATION_180;
1162             if (res.getBoolean(com.android.internal.R.bool.config_reverseDefaultRotation)) {
1163                 mLandscapeRotation = Surface.ROTATION_270;
1164                 mSeascapeRotation = Surface.ROTATION_90;
1165             } else {
1166                 mLandscapeRotation = Surface.ROTATION_90;
1167                 mSeascapeRotation = Surface.ROTATION_270;
1168             }
1169         }
1170
1171         mStatusBarHeight =
1172                 res.getDimensionPixelSize(com.android.internal.R.dimen.status_bar_height);
1173
1174         // Height of the navigation bar when presented horizontally at bottom
1175         mNavigationBarHeightForRotation[mPortraitRotation] =
1176         mNavigationBarHeightForRotation[mUpsideDownRotation] =
1177                 res.getDimensionPixelSize(com.android.internal.R.dimen.navigation_bar_height);
1178         mNavigationBarHeightForRotation[mLandscapeRotation] =
1179         mNavigationBarHeightForRotation[mSeascapeRotation] = res.getDimensionPixelSize(
1180                 com.android.internal.R.dimen.navigation_bar_height_landscape);
1181
1182         // Width of the navigation bar when presented vertically along one side
1183         mNavigationBarWidthForRotation[mPortraitRotation] =
1184         mNavigationBarWidthForRotation[mUpsideDownRotation] =
1185         mNavigationBarWidthForRotation[mLandscapeRotation] =
1186         mNavigationBarWidthForRotation[mSeascapeRotation] =
1187                 res.getDimensionPixelSize(com.android.internal.R.dimen.navigation_bar_width);
1188
1189         // SystemUI (status bar) layout policy
1190         int shortSizeDp = shortSize * DisplayMetrics.DENSITY_DEFAULT / density;
1191         int longSizeDp = longSize * DisplayMetrics.DENSITY_DEFAULT / density;
1192
1193         // Allow the navigation bar to move on small devices (phones).
1194         mNavigationBarCanMove = shortSizeDp < 600;
1195
1196         mHasNavigationBar = res.getBoolean(com.android.internal.R.bool.config_showNavigationBar);
1197         // Allow a system property to override this. Used by the emulator.
1198         // See also hasNavigationBar().
1199         String navBarOverride = SystemProperties.get("qemu.hw.mainkeys");
1200         if ("1".equals(navBarOverride)) {
1201             mHasNavigationBar = false;
1202         } else if ("0".equals(navBarOverride)) {
1203             mHasNavigationBar = true;
1204         }
1205
1206         // For demo purposes, allow the rotation of the HDMI display to be controlled.
1207         // By default, HDMI locks rotation to landscape.
1208         if ("portrait".equals(SystemProperties.get("persist.demo.hdmirotation"))) {
1209             mDemoHdmiRotation = mPortraitRotation;
1210         } else {
1211             mDemoHdmiRotation = mLandscapeRotation;
1212         }
1213         mDemoHdmiRotationLock = SystemProperties.getBoolean("persist.demo.hdmirotationlock", false);
1214
1215         // Only force the default orientation if the screen is xlarge, at least 960dp x 720dp, per
1216         // http://developer.android.com/guide/practices/screens_support.html#range
1217         mForceDefaultOrientation = longSizeDp >= 960 && shortSizeDp >= 720 &&
1218                 res.getBoolean(com.android.internal.R.bool.config_forceDefaultOrientation) &&
1219                 // For debug purposes the next line turns this feature off with:
1220                 // $ adb shell setprop config.override_forced_orient true
1221                 // $ adb shell wm size reset
1222                 !"true".equals(SystemProperties.get("config.override_forced_orient"));
1223     }
1224
1225     /**
1226      * @return whether the navigation bar can be hidden, e.g. the device has a
1227      *         navigation bar and touch exploration is not enabled
1228      */
1229     private boolean canHideNavigationBar() {
1230         return mHasNavigationBar
1231                 && !mAccessibilityManager.isTouchExplorationEnabled();
1232     }
1233
1234     @Override
1235     public boolean isDefaultOrientationForced() {
1236         return mForceDefaultOrientation;
1237     }
1238
1239     @Override
1240     public void setDisplayOverscan(Display display, int left, int top, int right, int bottom) {
1241         if (display.getDisplayId() == Display.DEFAULT_DISPLAY) {
1242             mOverscanLeft = left;
1243             mOverscanTop = top;
1244             mOverscanRight = right;
1245             mOverscanBottom = bottom;
1246         }
1247     }
1248
1249     public void updateSettings() {
1250         ContentResolver resolver = mContext.getContentResolver();
1251         boolean updateRotation = false;
1252         synchronized (mLock) {
1253             mEndcallBehavior = Settings.System.getIntForUser(resolver,
1254                     Settings.System.END_BUTTON_BEHAVIOR,
1255                     Settings.System.END_BUTTON_BEHAVIOR_DEFAULT,
1256                     UserHandle.USER_CURRENT);
1257             mIncallPowerBehavior = Settings.Secure.getIntForUser(resolver,
1258                     Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR,
1259                     Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT,
1260                     UserHandle.USER_CURRENT);
1261
1262             // Configure wake gesture.
1263             boolean wakeGestureEnabledSetting = Settings.Secure.getIntForUser(resolver,
1264                     Settings.Secure.WAKE_GESTURE_ENABLED, 0,
1265                     UserHandle.USER_CURRENT) != 0;
1266             if (mWakeGestureEnabledSetting != wakeGestureEnabledSetting) {
1267                 mWakeGestureEnabledSetting = wakeGestureEnabledSetting;
1268                 updateWakeGestureListenerLp();
1269             }
1270
1271             // Configure rotation lock.
1272             int userRotation = Settings.System.getIntForUser(resolver,
1273                     Settings.System.USER_ROTATION, Surface.ROTATION_0,
1274                     UserHandle.USER_CURRENT);
1275             if (mUserRotation != userRotation) {
1276                 mUserRotation = userRotation;
1277                 updateRotation = true;
1278             }
1279             int userRotationMode = Settings.System.getIntForUser(resolver,
1280                     Settings.System.ACCELEROMETER_ROTATION, 0, UserHandle.USER_CURRENT) != 0 ?
1281                             WindowManagerPolicy.USER_ROTATION_FREE :
1282                                     WindowManagerPolicy.USER_ROTATION_LOCKED;
1283             if (mUserRotationMode != userRotationMode) {
1284                 mUserRotationMode = userRotationMode;
1285                 updateRotation = true;
1286                 updateOrientationListenerLp();
1287             }
1288
1289             if (mSystemReady) {
1290                 int pointerLocation = Settings.System.getIntForUser(resolver,
1291                         Settings.System.POINTER_LOCATION, 0, UserHandle.USER_CURRENT);
1292                 if (mPointerLocationMode != pointerLocation) {
1293                     mPointerLocationMode = pointerLocation;
1294                     mHandler.sendEmptyMessage(pointerLocation != 0 ?
1295                             MSG_ENABLE_POINTER_LOCATION : MSG_DISABLE_POINTER_LOCATION);
1296                 }
1297             }
1298             // use screen off timeout setting as the timeout for the lockscreen
1299             mLockScreenTimeout = Settings.System.getIntForUser(resolver,
1300                     Settings.System.SCREEN_OFF_TIMEOUT, 0, UserHandle.USER_CURRENT);
1301             String imId = Settings.Secure.getStringForUser(resolver,
1302                     Settings.Secure.DEFAULT_INPUT_METHOD, UserHandle.USER_CURRENT);
1303             boolean hasSoftInput = imId != null && imId.length() > 0;
1304             if (mHasSoftInput != hasSoftInput) {
1305                 mHasSoftInput = hasSoftInput;
1306                 updateRotation = true;
1307             }
1308             if (mImmersiveModeConfirmation != null) {
1309                 mImmersiveModeConfirmation.loadSetting(mCurrentUserId);
1310             }
1311             PolicyControl.reloadFromSetting(mContext);
1312         }
1313         if (updateRotation) {
1314             updateRotation(true);
1315         }
1316     }
1317
1318     private void updateWakeGestureListenerLp() {
1319         if (shouldEnableWakeGestureLp()) {
1320             mWakeGestureListener.requestWakeUpTrigger();
1321         } else {
1322             mWakeGestureListener.cancelWakeUpTrigger();
1323         }
1324     }
1325
1326     private boolean shouldEnableWakeGestureLp() {
1327         return mWakeGestureEnabledSetting && !mAwake
1328                 && (!mLidControlsSleep || mLidState != LID_CLOSED)
1329                 && mWakeGestureListener.isSupported();
1330     }
1331
1332     private void enablePointerLocation() {
1333         if (mPointerLocationView == null) {
1334             mPointerLocationView = new PointerLocationView(mContext);
1335             mPointerLocationView.setPrintCoords(false);
1336             WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
1337                     WindowManager.LayoutParams.MATCH_PARENT,
1338                     WindowManager.LayoutParams.MATCH_PARENT);
1339             lp.type = WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY;
1340             lp.flags = WindowManager.LayoutParams.FLAG_FULLSCREEN
1341                     | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
1342                     | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
1343                     | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
1344             if (ActivityManager.isHighEndGfx()) {
1345                 lp.flags |= WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
1346                 lp.privateFlags |=
1347                         WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED;
1348             }
1349             lp.format = PixelFormat.TRANSLUCENT;
1350             lp.setTitle("PointerLocation");
1351             WindowManager wm = (WindowManager)
1352                     mContext.getSystemService(Context.WINDOW_SERVICE);
1353             lp.inputFeatures |= WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL;
1354             wm.addView(mPointerLocationView, lp);
1355             mWindowManagerFuncs.registerPointerEventListener(mPointerLocationView);
1356         }
1357     }
1358
1359     private void disablePointerLocation() {
1360         if (mPointerLocationView != null) {
1361             mWindowManagerFuncs.unregisterPointerEventListener(mPointerLocationView);
1362             WindowManager wm = (WindowManager) mContext.getSystemService(Context.WINDOW_SERVICE);
1363             wm.removeView(mPointerLocationView);
1364             mPointerLocationView = null;
1365         }
1366     }
1367
1368     private int readRotation(int resID) {
1369         try {
1370             int rotation = mContext.getResources().getInteger(resID);
1371             switch (rotation) {
1372                 case 0:
1373                     return Surface.ROTATION_0;
1374                 case 90:
1375                     return Surface.ROTATION_90;
1376                 case 180:
1377                     return Surface.ROTATION_180;
1378                 case 270:
1379                     return Surface.ROTATION_270;
1380             }
1381         } catch (Resources.NotFoundException e) {
1382             // fall through
1383         }
1384         return -1;
1385     }
1386
1387     /** {@inheritDoc} */
1388     @Override
1389     public int checkAddPermission(WindowManager.LayoutParams attrs, int[] outAppOp) {
1390         int type = attrs.type;
1391
1392         outAppOp[0] = AppOpsManager.OP_NONE;
1393
1394         if (type < WindowManager.LayoutParams.FIRST_SYSTEM_WINDOW
1395                 || type > WindowManager.LayoutParams.LAST_SYSTEM_WINDOW) {
1396             return WindowManagerGlobal.ADD_OKAY;
1397         }
1398         String permission = null;
1399         switch (type) {
1400             case TYPE_TOAST:
1401                 // XXX right now the app process has complete control over
1402                 // this...  should introduce a token to let the system
1403                 // monitor/control what they are doing.
1404                 outAppOp[0] = AppOpsManager.OP_TOAST_WINDOW;
1405                 break;
1406             case TYPE_DREAM:
1407             case TYPE_INPUT_METHOD:
1408             case TYPE_WALLPAPER:
1409             case TYPE_PRIVATE_PRESENTATION:
1410             case TYPE_VOICE_INTERACTION:
1411                 // The window manager will check these.
1412                 break;
1413             case TYPE_PHONE:
1414             case TYPE_PRIORITY_PHONE:
1415             case TYPE_SYSTEM_ALERT:
1416             case TYPE_SYSTEM_ERROR:
1417             case TYPE_SYSTEM_OVERLAY:
1418                 permission = android.Manifest.permission.SYSTEM_ALERT_WINDOW;
1419                 outAppOp[0] = AppOpsManager.OP_SYSTEM_ALERT_WINDOW;
1420                 break;
1421             default:
1422                 permission = android.Manifest.permission.INTERNAL_SYSTEM_WINDOW;
1423         }
1424         if (permission != null) {
1425             if (mContext.checkCallingOrSelfPermission(permission)
1426                     != PackageManager.PERMISSION_GRANTED) {
1427                 return WindowManagerGlobal.ADD_PERMISSION_DENIED;
1428             }
1429         }
1430         return WindowManagerGlobal.ADD_OKAY;
1431     }
1432
1433     @Override
1434     public boolean checkShowToOwnerOnly(WindowManager.LayoutParams attrs) {
1435
1436         // If this switch statement is modified, modify the comment in the declarations of
1437         // the type in {@link WindowManager.LayoutParams} as well.
1438         switch (attrs.type) {
1439             default:
1440                 // These are the windows that by default are shown only to the user that created
1441                 // them. If this needs to be overridden, set
1442                 // {@link WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS} in
1443                 // {@link WindowManager.LayoutParams}. Note that permission
1444                 // {@link android.Manifest.permission.INTERNAL_SYSTEM_WINDOW} is required as well.
1445                 if ((attrs.privateFlags & PRIVATE_FLAG_SHOW_FOR_ALL_USERS) == 0) {
1446                     return true;
1447                 }
1448                 break;
1449
1450             // These are the windows that by default are shown to all users. However, to
1451             // protect against spoofing, check permissions below.
1452             case TYPE_APPLICATION_STARTING:
1453             case TYPE_BOOT_PROGRESS:
1454             case TYPE_DISPLAY_OVERLAY:
1455             case TYPE_HIDDEN_NAV_CONSUMER:
1456             case TYPE_KEYGUARD_SCRIM:
1457             case TYPE_KEYGUARD_DIALOG:
1458             case TYPE_MAGNIFICATION_OVERLAY:
1459             case TYPE_NAVIGATION_BAR:
1460             case TYPE_NAVIGATION_BAR_PANEL:
1461             case TYPE_PHONE:
1462             case TYPE_POINTER:
1463             case TYPE_PRIORITY_PHONE:
1464             case TYPE_RECENTS_OVERLAY:
1465             case TYPE_SEARCH_BAR:
1466             case TYPE_STATUS_BAR:
1467             case TYPE_STATUS_BAR_PANEL:
1468             case TYPE_STATUS_BAR_SUB_PANEL:
1469             case TYPE_SYSTEM_DIALOG:
1470             case TYPE_UNIVERSE_BACKGROUND:
1471             case TYPE_VOLUME_OVERLAY:
1472             case TYPE_PRIVATE_PRESENTATION:
1473                 break;
1474         }
1475
1476         // Check if third party app has set window to system window type.
1477         return mContext.checkCallingOrSelfPermission(
1478                 android.Manifest.permission.INTERNAL_SYSTEM_WINDOW)
1479                         != PackageManager.PERMISSION_GRANTED;
1480     }
1481
1482     @Override
1483     public void adjustWindowParamsLw(WindowManager.LayoutParams attrs) {
1484         switch (attrs.type) {
1485             case TYPE_SYSTEM_OVERLAY:
1486             case TYPE_SECURE_SYSTEM_OVERLAY:
1487                 // These types of windows can't receive input events.
1488                 attrs.flags |= WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
1489                         | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
1490                 attrs.flags &= ~WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;
1491                 break;
1492             case TYPE_STATUS_BAR:
1493
1494                 // If the Keyguard is in a hidden state (occluded by another window), we force to
1495                 // remove the wallpaper and keyguard flag so that any change in-flight after setting
1496                 // the keyguard as occluded wouldn't set these flags again.
1497                 // See {@link #processKeyguardSetHiddenResultLw}.
1498                 if (mKeyguardHidden) {
1499                     attrs.flags &= ~WindowManager.LayoutParams.FLAG_SHOW_WALLPAPER;
1500                     attrs.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_KEYGUARD;
1501                 }
1502                 break;
1503         }
1504
1505         if (attrs.type != TYPE_STATUS_BAR) {
1506             // The status bar is the only window allowed to exhibit keyguard behavior.
1507             attrs.privateFlags &= ~WindowManager.LayoutParams.PRIVATE_FLAG_KEYGUARD;
1508         }
1509
1510         if (ActivityManager.isHighEndGfx()
1511                 && (attrs.flags & FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) != 0) {
1512             attrs.subtreeSystemUiVisibility |= View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
1513                     | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION;
1514         }
1515     }
1516
1517     void readLidState() {
1518         mLidState = mWindowManagerFuncs.getLidState();
1519     }
1520
1521     private void readCameraLensCoverState() {
1522         mCameraLensCoverState = mWindowManagerFuncs.getCameraLensCoverState();
1523     }
1524
1525     private boolean isHidden(int accessibilityMode) {
1526         switch (accessibilityMode) {
1527             case 1:
1528                 return mLidState == LID_CLOSED;
1529             case 2:
1530                 return mLidState == LID_OPEN;
1531             default:
1532                 return false;
1533         }
1534     }
1535
1536     /** {@inheritDoc} */
1537     @Override
1538     public void adjustConfigurationLw(Configuration config, int keyboardPresence,
1539             int navigationPresence) {
1540         mHaveBuiltInKeyboard = (keyboardPresence & PRESENCE_INTERNAL) != 0;
1541
1542         readConfigurationDependentBehaviors();
1543         readLidState();
1544         applyLidSwitchState();
1545
1546         if (config.keyboard == Configuration.KEYBOARD_NOKEYS
1547                 || (keyboardPresence == PRESENCE_INTERNAL
1548                         && isHidden(mLidKeyboardAccessibility))) {
1549             config.hardKeyboardHidden = Configuration.HARDKEYBOARDHIDDEN_YES;
1550             if (!mHasSoftInput) {
1551                 config.keyboardHidden = Configuration.KEYBOARDHIDDEN_YES;
1552             }
1553         }
1554
1555         if (config.navigation == Configuration.NAVIGATION_NONAV
1556                 || (navigationPresence == PRESENCE_INTERNAL
1557                         && isHidden(mLidNavigationAccessibility))) {
1558             config.navigationHidden = Configuration.NAVIGATIONHIDDEN_YES;
1559         }
1560     }
1561
1562     /** {@inheritDoc} */
1563     @Override
1564     public int windowTypeToLayerLw(int type) {
1565         if (type >= FIRST_APPLICATION_WINDOW && type <= LAST_APPLICATION_WINDOW) {
1566             return 2;
1567         }
1568         switch (type) {
1569         case TYPE_UNIVERSE_BACKGROUND:
1570             return 1;
1571         case TYPE_PRIVATE_PRESENTATION:
1572             return 2;
1573         case TYPE_WALLPAPER:
1574             // wallpaper is at the bottom, though the window manager may move it.
1575             return 2;
1576         case TYPE_PHONE:
1577             return 3;
1578         case TYPE_SEARCH_BAR:
1579             return 4;
1580         case TYPE_VOICE_INTERACTION:
1581             // voice interaction layer is almost immediately above apps.
1582             return 5;
1583         case TYPE_RECENTS_OVERLAY:
1584         case TYPE_SYSTEM_DIALOG:
1585             return 6;
1586         case TYPE_TOAST:
1587             // toasts and the plugged-in battery thing
1588             return 7;
1589         case TYPE_PRIORITY_PHONE:
1590             // SIM errors and unlock.  Not sure if this really should be in a high layer.
1591             return 8;
1592         case TYPE_DREAM:
1593             // used for Dreams (screensavers with TYPE_DREAM windows)
1594             return 9;
1595         case TYPE_SYSTEM_ALERT:
1596             // like the ANR / app crashed dialogs
1597             return 10;
1598         case TYPE_INPUT_METHOD:
1599             // on-screen keyboards and other such input method user interfaces go here.
1600             return 11;
1601         case TYPE_INPUT_METHOD_DIALOG:
1602             // on-screen keyboards and other such input method user interfaces go here.
1603             return 12;
1604         case TYPE_KEYGUARD_SCRIM:
1605             // the safety window that shows behind keyguard while keyguard is starting
1606             return 13;
1607         case TYPE_STATUS_BAR_SUB_PANEL:
1608             return 14;
1609         case TYPE_STATUS_BAR:
1610             return 15;
1611         case TYPE_STATUS_BAR_PANEL:
1612             return 16;
1613         case TYPE_KEYGUARD_DIALOG:
1614             return 17;
1615         case TYPE_VOLUME_OVERLAY:
1616             // the on-screen volume indicator and controller shown when the user
1617             // changes the device volume
1618             return 18;
1619         case TYPE_SYSTEM_OVERLAY:
1620             // the on-screen volume indicator and controller shown when the user
1621             // changes the device volume
1622             return 19;
1623         case TYPE_NAVIGATION_BAR:
1624             // the navigation bar, if available, shows atop most things
1625             return 20;
1626         case TYPE_NAVIGATION_BAR_PANEL:
1627             // some panels (e.g. search) need to show on top of the navigation bar
1628             return 21;
1629         case TYPE_SYSTEM_ERROR:
1630             // system-level error dialogs
1631             return 22;
1632         case TYPE_MAGNIFICATION_OVERLAY:
1633             // used to highlight the magnified portion of a display
1634             return 23;
1635         case TYPE_DISPLAY_OVERLAY:
1636             // used to simulate secondary display devices
1637             return 24;
1638         case TYPE_DRAG:
1639             // the drag layer: input for drag-and-drop is associated with this window,
1640             // which sits above all other focusable windows
1641             return 25;
1642         case TYPE_SECURE_SYSTEM_OVERLAY:
1643             return 26;
1644         case TYPE_BOOT_PROGRESS:
1645             return 27;
1646         case TYPE_POINTER:
1647             // the (mouse) pointer layer
1648             return 28;
1649         case TYPE_HIDDEN_NAV_CONSUMER:
1650             return 29;
1651         }
1652         Log.e(TAG, "Unknown window type: " + type);
1653         return 2;
1654     }
1655
1656     /** {@inheritDoc} */
1657     @Override
1658     public int subWindowTypeToLayerLw(int type) {
1659         switch (type) {
1660         case TYPE_APPLICATION_PANEL:
1661         case TYPE_APPLICATION_ATTACHED_DIALOG:
1662             return APPLICATION_PANEL_SUBLAYER;
1663         case TYPE_APPLICATION_MEDIA:
1664             return APPLICATION_MEDIA_SUBLAYER;
1665         case TYPE_APPLICATION_MEDIA_OVERLAY:
1666             return APPLICATION_MEDIA_OVERLAY_SUBLAYER;
1667         case TYPE_APPLICATION_SUB_PANEL:
1668             return APPLICATION_SUB_PANEL_SUBLAYER;
1669         }
1670         Log.e(TAG, "Unknown sub-window type: " + type);
1671         return 0;
1672     }
1673
1674     @Override
1675     public int getMaxWallpaperLayer() {
1676         return windowTypeToLayerLw(TYPE_STATUS_BAR);
1677     }
1678
1679     @Override
1680     public int getAboveUniverseLayer() {
1681         return windowTypeToLayerLw(TYPE_SYSTEM_ERROR);
1682     }
1683
1684     @Override
1685     public int getNonDecorDisplayWidth(int fullWidth, int fullHeight, int rotation) {
1686         if (mHasNavigationBar) {
1687             // For a basic navigation bar, when we are in landscape mode we place
1688             // the navigation bar to the side.
1689             if (mNavigationBarCanMove && fullWidth > fullHeight) {
1690                 return fullWidth - mNavigationBarWidthForRotation[rotation];
1691             }
1692         }
1693         return fullWidth;
1694     }
1695
1696     @Override
1697     public int getNonDecorDisplayHeight(int fullWidth, int fullHeight, int rotation) {
1698         if (mHasNavigationBar) {
1699             // For a basic navigation bar, when we are in portrait mode we place
1700             // the navigation bar to the bottom.
1701             if (!mNavigationBarCanMove || fullWidth < fullHeight) {
1702                 return fullHeight - mNavigationBarHeightForRotation[rotation];
1703             }
1704         }
1705         return fullHeight;
1706     }
1707
1708     @Override
1709     public int getConfigDisplayWidth(int fullWidth, int fullHeight, int rotation) {
1710         return getNonDecorDisplayWidth(fullWidth, fullHeight, rotation);
1711     }
1712
1713     @Override
1714     public int getConfigDisplayHeight(int fullWidth, int fullHeight, int rotation) {
1715         // There is a separate status bar at the top of the display.  We don't count that as part
1716         // of the fixed decor, since it can hide; however, for purposes of configurations,
1717         // we do want to exclude it since applications can't generally use that part
1718         // of the screen.
1719         return getNonDecorDisplayHeight(fullWidth, fullHeight, rotation) - mStatusBarHeight;
1720     }
1721
1722     @Override
1723     public boolean isForceHiding(WindowManager.LayoutParams attrs) {
1724         return (attrs.privateFlags & PRIVATE_FLAG_KEYGUARD) != 0 ||
1725                 (isKeyguardHostWindow(attrs) && isKeyguardSecureIncludingHidden()) ||
1726                 (attrs.type == TYPE_KEYGUARD_SCRIM);
1727     }
1728
1729     @Override
1730     public boolean isKeyguardHostWindow(WindowManager.LayoutParams attrs) {
1731         return attrs.type == TYPE_STATUS_BAR;
1732     }
1733
1734     @Override
1735     public boolean canBeForceHidden(WindowState win, WindowManager.LayoutParams attrs) {
1736         switch (attrs.type) {
1737             case TYPE_STATUS_BAR:
1738             case TYPE_NAVIGATION_BAR:
1739             case TYPE_WALLPAPER:
1740             case TYPE_DREAM:
1741             case TYPE_UNIVERSE_BACKGROUND:
1742             case TYPE_KEYGUARD_SCRIM:
1743                 return false;
1744             default:
1745                 return true;
1746         }
1747     }
1748
1749     @Override
1750     public WindowState getWinShowWhenLockedLw() {
1751         return mWinShowWhenLocked;
1752     }
1753
1754     /** {@inheritDoc} */
1755     @Override
1756     public View addStartingWindow(IBinder appToken, String packageName, int theme,
1757             CompatibilityInfo compatInfo, CharSequence nonLocalizedLabel, int labelRes,
1758             int icon, int logo, int windowFlags) {
1759         if (!SHOW_STARTING_ANIMATIONS) {
1760             return null;
1761         }
1762         if (packageName == null) {
1763             return null;
1764         }
1765
1766         WindowManager wm = null;
1767         View view = null;
1768
1769         try {
1770             Context context = mContext;
1771             if (DEBUG_STARTING_WINDOW) Slog.d(TAG, "addStartingWindow " + packageName
1772                     + ": nonLocalizedLabel=" + nonLocalizedLabel + " theme="
1773                     + Integer.toHexString(theme));
1774             if (theme != context.getThemeResId() || labelRes != 0) {
1775                 try {
1776                     context = context.createPackageContext(packageName, 0);
1777                     context.setTheme(theme);
1778                 } catch (PackageManager.NameNotFoundException e) {
1779                     // Ignore
1780                 }
1781             }
1782
1783             Window win = PolicyManager.makeNewWindow(context);
1784             final TypedArray ta = win.getWindowStyle();
1785             if (ta.getBoolean(
1786                         com.android.internal.R.styleable.Window_windowDisablePreview, false)
1787                 || ta.getBoolean(
1788                         com.android.internal.R.styleable.Window_windowShowWallpaper,false)) {
1789                 return null;
1790             }
1791
1792             Resources r = context.getResources();
1793             win.setTitle(r.getText(labelRes, nonLocalizedLabel));
1794
1795             win.setType(
1796                 WindowManager.LayoutParams.TYPE_APPLICATION_STARTING);
1797             // Force the window flags: this is a fake window, so it is not really
1798             // touchable or focusable by the user.  We also add in the ALT_FOCUSABLE_IM
1799             // flag because we do know that the next window will take input
1800             // focus, so we want to get the IME window up on top of us right away.
1801             win.setFlags(
1802                 windowFlags|
1803                 WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE|
1804                 WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
1805                 WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM,
1806                 windowFlags|
1807                 WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE|
1808                 WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
1809                 WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
1810
1811             win.setDefaultIcon(icon);
1812             win.setDefaultLogo(logo);
1813
1814             win.setLayout(WindowManager.LayoutParams.MATCH_PARENT,
1815                     WindowManager.LayoutParams.MATCH_PARENT);
1816
1817             final WindowManager.LayoutParams params = win.getAttributes();
1818             params.token = appToken;
1819             params.packageName = packageName;
1820             params.windowAnimations = win.getWindowStyle().getResourceId(
1821                     com.android.internal.R.styleable.Window_windowAnimationStyle, 0);
1822             params.privateFlags |=
1823                     WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED;
1824             params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
1825
1826             if (!compatInfo.supportsScreen()) {
1827                 params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_COMPATIBLE_WINDOW;
1828             }
1829
1830             params.setTitle("Starting " + packageName);
1831
1832             wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
1833             view = win.getDecorView();
1834
1835             if (win.isFloating()) {
1836                 // Whoops, there is no way to display an animation/preview
1837                 // of such a thing!  After all that work...  let's skip it.
1838                 // (Note that we must do this here because it is in
1839                 // getDecorView() where the theme is evaluated...  maybe
1840                 // we should peek the floating attribute from the theme
1841                 // earlier.)
1842                 return null;
1843             }
1844
1845             if (DEBUG_STARTING_WINDOW) Slog.d(
1846                 TAG, "Adding starting window for " + packageName
1847                 + " / " + appToken + ": "
1848                 + (view.getParent() != null ? view : null));
1849
1850             wm.addView(view, params);
1851
1852             // Only return the view if it was successfully added to the
1853             // window manager... which we can tell by it having a parent.
1854             return view.getParent() != null ? view : null;
1855         } catch (WindowManager.BadTokenException e) {
1856             // ignore
1857             Log.w(TAG, appToken + " already running, starting window not displayed. " +
1858                     e.getMessage());
1859         } catch (RuntimeException e) {
1860             // don't crash if something else bad happens, for example a
1861             // failure loading resources because we are loading from an app
1862             // on external storage that has been unmounted.
1863             Log.w(TAG, appToken + " failed creating starting window", e);
1864         } finally {
1865             if (view != null && view.getParent() == null) {
1866                 Log.w(TAG, "view not successfully added to wm, removing view");
1867                 wm.removeViewImmediate(view);
1868             }
1869         }
1870
1871         return null;
1872     }
1873
1874     /** {@inheritDoc} */
1875     @Override
1876     public void removeStartingWindow(IBinder appToken, View window) {
1877         if (DEBUG_STARTING_WINDOW) {
1878             RuntimeException e = new RuntimeException("here");
1879             e.fillInStackTrace();
1880             Log.v(TAG, "Removing starting window for " + appToken + ": " + window, e);
1881         }
1882
1883         if (window != null) {
1884             WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE);
1885             wm.removeView(window);
1886         }
1887     }
1888
1889     /**
1890      * Preflight adding a window to the system.
1891      *
1892      * Currently enforces that three window types are singletons:
1893      * <ul>
1894      * <li>STATUS_BAR_TYPE</li>
1895      * <li>KEYGUARD_TYPE</li>
1896      * </ul>
1897      *
1898      * @param win The window to be added
1899      * @param attrs Information about the window to be added
1900      *
1901      * @return If ok, WindowManagerImpl.ADD_OKAY.  If too many singletons,
1902      * WindowManagerImpl.ADD_MULTIPLE_SINGLETON
1903      */
1904     @Override
1905     public int prepareAddWindowLw(WindowState win, WindowManager.LayoutParams attrs) {
1906         switch (attrs.type) {
1907             case TYPE_STATUS_BAR:
1908                 mContext.enforceCallingOrSelfPermission(
1909                         android.Manifest.permission.STATUS_BAR_SERVICE,
1910                         "PhoneWindowManager");
1911                 if (mStatusBar != null) {
1912                     if (mStatusBar.isAlive()) {
1913                         return WindowManagerGlobal.ADD_MULTIPLE_SINGLETON;
1914                     }
1915                 }
1916                 mStatusBar = win;
1917                 mStatusBarController.setWindow(win);
1918                 mKeyguardDelegate.hideScrim();
1919                 break;
1920             case TYPE_NAVIGATION_BAR:
1921                 mContext.enforceCallingOrSelfPermission(
1922                         android.Manifest.permission.STATUS_BAR_SERVICE,
1923                         "PhoneWindowManager");
1924                 if (mNavigationBar != null) {
1925                     if (mNavigationBar.isAlive()) {
1926                         return WindowManagerGlobal.ADD_MULTIPLE_SINGLETON;
1927                     }
1928                 }
1929                 mNavigationBar = win;
1930                 mNavigationBarController.setWindow(win);
1931                 if (DEBUG_LAYOUT) Slog.i(TAG, "NAVIGATION BAR: " + mNavigationBar);
1932                 break;
1933             case TYPE_NAVIGATION_BAR_PANEL:
1934                 mContext.enforceCallingOrSelfPermission(
1935                         android.Manifest.permission.STATUS_BAR_SERVICE,
1936                         "PhoneWindowManager");
1937                 break;
1938             case TYPE_STATUS_BAR_PANEL:
1939                 mContext.enforceCallingOrSelfPermission(
1940                         android.Manifest.permission.STATUS_BAR_SERVICE,
1941                         "PhoneWindowManager");
1942                 break;
1943             case TYPE_STATUS_BAR_SUB_PANEL:
1944                 mContext.enforceCallingOrSelfPermission(
1945                         android.Manifest.permission.STATUS_BAR_SERVICE,
1946                         "PhoneWindowManager");
1947                 break;
1948             case TYPE_KEYGUARD_SCRIM:
1949                 if (mKeyguardScrim != null) {
1950                     return WindowManagerGlobal.ADD_MULTIPLE_SINGLETON;
1951                 }
1952                 mKeyguardScrim = win;
1953                 break;
1954
1955         }
1956         return WindowManagerGlobal.ADD_OKAY;
1957     }
1958
1959     /** {@inheritDoc} */
1960     @Override
1961     public void removeWindowLw(WindowState win) {
1962         if (mStatusBar == win) {
1963             mStatusBar = null;
1964             mStatusBarController.setWindow(null);
1965             mKeyguardDelegate.showScrim();
1966         } else if (mKeyguardScrim == win) {
1967             Log.v(TAG, "Removing keyguard scrim");
1968             mKeyguardScrim = null;
1969         } if (mNavigationBar == win) {
1970             mNavigationBar = null;
1971             mNavigationBarController.setWindow(null);
1972         }
1973     }
1974
1975     static final boolean PRINT_ANIM = false;
1976
1977     /** {@inheritDoc} */
1978     @Override
1979     public int selectAnimationLw(WindowState win, int transit) {
1980         if (PRINT_ANIM) Log.i(TAG, "selectAnimation in " + win
1981               + ": transit=" + transit);
1982         if (win == mStatusBar) {
1983             boolean isKeyguard = (win.getAttrs().privateFlags & PRIVATE_FLAG_KEYGUARD) != 0;
1984             if (transit == TRANSIT_EXIT
1985                     || transit == TRANSIT_HIDE) {
1986                 return isKeyguard ? -1 : R.anim.dock_top_exit;
1987             } else if (transit == TRANSIT_ENTER
1988                     || transit == TRANSIT_SHOW) {
1989                 return isKeyguard ? -1 : R.anim.dock_top_enter;
1990             }
1991         } else if (win == mNavigationBar) {
1992             // This can be on either the bottom or the right.
1993             if (mNavigationBarOnBottom) {
1994                 if (transit == TRANSIT_EXIT
1995                         || transit == TRANSIT_HIDE) {
1996                     return R.anim.dock_bottom_exit;
1997                 } else if (transit == TRANSIT_ENTER
1998                         || transit == TRANSIT_SHOW) {
1999                     return R.anim.dock_bottom_enter;
2000                 }
2001             } else {
2002                 if (transit == TRANSIT_EXIT
2003                         || transit == TRANSIT_HIDE) {
2004                     return R.anim.dock_right_exit;
2005                 } else if (transit == TRANSIT_ENTER
2006                         || transit == TRANSIT_SHOW) {
2007                     return R.anim.dock_right_enter;
2008                 }
2009             }
2010         }
2011
2012         if (transit == TRANSIT_PREVIEW_DONE) {
2013             if (win.hasAppShownWindows()) {
2014                 if (PRINT_ANIM) Log.i(TAG, "**** STARTING EXIT");
2015                 return com.android.internal.R.anim.app_starting_exit;
2016             }
2017         } else if (win.getAttrs().type == TYPE_DREAM && mDreamingLockscreen
2018                 && transit == TRANSIT_ENTER) {
2019             // Special case: we are animating in a dream, while the keyguard
2020             // is shown.  We don't want an animation on the dream, because
2021             // we need it shown immediately with the keyguard animating away
2022             // to reveal it.
2023             return -1;
2024         }
2025
2026         return 0;
2027     }
2028
2029     @Override
2030     public void selectRotationAnimationLw(int anim[]) {
2031         if (PRINT_ANIM) Slog.i(TAG, "selectRotationAnimation mTopFullscreen="
2032                 + mTopFullscreenOpaqueWindowState + " rotationAnimation="
2033                 + (mTopFullscreenOpaqueWindowState == null ?
2034                         "0" : mTopFullscreenOpaqueWindowState.getAttrs().rotationAnimation));
2035         if (mTopFullscreenOpaqueWindowState != null && mTopIsFullscreen) {
2036             switch (mTopFullscreenOpaqueWindowState.getAttrs().rotationAnimation) {
2037                 case ROTATION_ANIMATION_CROSSFADE:
2038                     anim[0] = R.anim.rotation_animation_xfade_exit;
2039                     anim[1] = R.anim.rotation_animation_enter;
2040                     break;
2041                 case ROTATION_ANIMATION_JUMPCUT:
2042                     anim[0] = R.anim.rotation_animation_jump_exit;
2043                     anim[1] = R.anim.rotation_animation_enter;
2044                     break;
2045                 case ROTATION_ANIMATION_ROTATE:
2046                 default:
2047                     anim[0] = anim[1] = 0;
2048                     break;
2049             }
2050         } else {
2051             anim[0] = anim[1] = 0;
2052         }
2053     }
2054
2055     @Override
2056     public boolean validateRotationAnimationLw(int exitAnimId, int enterAnimId,
2057             boolean forceDefault) {
2058         switch (exitAnimId) {
2059             case R.anim.rotation_animation_xfade_exit:
2060             case R.anim.rotation_animation_jump_exit:
2061                 // These are the only cases that matter.
2062                 if (forceDefault) {
2063                     return false;
2064                 }
2065                 int anim[] = new int[2];
2066                 selectRotationAnimationLw(anim);
2067                 return (exitAnimId == anim[0] && enterAnimId == anim[1]);
2068             default:
2069                 return true;
2070         }
2071     }
2072
2073     @Override
2074     public Animation createForceHideEnterAnimation(boolean onWallpaper,
2075             boolean goingToNotificationShade) {
2076         if (goingToNotificationShade) {
2077             return AnimationUtils.loadAnimation(mContext, R.anim.lock_screen_behind_enter_fade_in);
2078         } else if (onWallpaper) {
2079             Animation a = AnimationUtils.loadAnimation(mContext,
2080                     R.anim.lock_screen_behind_enter_wallpaper);
2081             AnimationSet set = (AnimationSet) a;
2082
2083             // TODO: Use XML interpolators when we have log interpolators available in XML.
2084             set.getAnimations().get(0).setInterpolator(mLogDecelerateInterpolator);
2085             set.getAnimations().get(1).setInterpolator(mLogDecelerateInterpolator);
2086             return set;
2087         } else {
2088             Animation a = AnimationUtils.loadAnimation(mContext,
2089                     R.anim.lock_screen_behind_enter);
2090             AnimationSet set = (AnimationSet) a;
2091
2092             // TODO: Use XML interpolators when we have log interpolators available in XML.
2093             set.getAnimations().get(0).setInterpolator(mLogDecelerateInterpolator);
2094             return set;
2095         }
2096     }
2097
2098
2099     @Override
2100     public Animation createForceHideWallpaperExitAnimation(boolean goingToNotificationShade) {
2101         if (goingToNotificationShade) {
2102             return null;
2103         } else {
2104             return AnimationUtils.loadAnimation(mContext, R.anim.lock_screen_wallpaper_exit);
2105         }
2106     }
2107
2108     private static void awakenDreams() {
2109         IDreamManager dreamManager = getDreamManager();
2110         if (dreamManager != null) {
2111             try {
2112                 dreamManager.awaken();
2113             } catch (RemoteException e) {
2114                 // fine, stay asleep then
2115             }
2116         }
2117     }
2118
2119     static IDreamManager getDreamManager() {
2120         return IDreamManager.Stub.asInterface(
2121                 ServiceManager.checkService(DreamService.DREAM_SERVICE));
2122     }
2123
2124     TelecomManager getTelecommService() {
2125         return (TelecomManager) mContext.getSystemService(Context.TELECOM_SERVICE);
2126     }
2127
2128     static IAudioService getAudioService() {
2129         IAudioService audioService = IAudioService.Stub.asInterface(
2130                 ServiceManager.checkService(Context.AUDIO_SERVICE));
2131         if (audioService == null) {
2132             Log.w(TAG, "Unable to find IAudioService interface.");
2133         }
2134         return audioService;
2135     }
2136
2137     boolean keyguardOn() {
2138         return keyguardIsShowingTq() || inKeyguardRestrictedKeyInputMode();
2139     }
2140
2141     private static final int[] WINDOW_TYPES_WHERE_HOME_DOESNT_WORK = {
2142             WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
2143             WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
2144         };
2145
2146     /** {@inheritDoc} */
2147     @Override
2148     public long interceptKeyBeforeDispatching(WindowState win, KeyEvent event, int policyFlags) {
2149         final boolean keyguardOn = keyguardOn();
2150         final int keyCode = event.getKeyCode();
2151         final int repeatCount = event.getRepeatCount();
2152         final int metaState = event.getMetaState();
2153         final int flags = event.getFlags();
2154         final boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
2155         final boolean canceled = event.isCanceled();
2156
2157         if (DEBUG_INPUT) {
2158             Log.d(TAG, "interceptKeyTi keyCode=" + keyCode + " down=" + down + " repeatCount="
2159                     + repeatCount + " keyguardOn=" + keyguardOn + " mHomePressed=" + mHomePressed
2160                     + " canceled=" + canceled);
2161         }
2162
2163         // If we think we might have a volume down & power key chord on the way
2164         // but we're not sure, then tell the dispatcher to wait a little while and
2165         // try again later before dispatching.
2166         if (mScreenshotChordEnabled && (flags & KeyEvent.FLAG_FALLBACK) == 0) {
2167             if (mVolumeDownKeyTriggered && !mPowerKeyTriggered) {
2168                 final long now = SystemClock.uptimeMillis();
2169                 final long timeoutTime = mVolumeDownKeyTime + SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS;
2170                 if (now < timeoutTime) {
2171                     return timeoutTime - now;
2172                 }
2173             }
2174             if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN
2175                     && mVolumeDownKeyConsumedByScreenshotChord) {
2176                 if (!down) {
2177                     mVolumeDownKeyConsumedByScreenshotChord = false;
2178                 }
2179                 return -1;
2180             }
2181         }
2182
2183         // Cancel any pending meta actions if we see any other keys being pressed between the down
2184         // of the meta key and its corresponding up.
2185         if (mPendingMetaAction && !KeyEvent.isMetaKey(keyCode)) {
2186             mPendingMetaAction = false;
2187         }
2188
2189         // First we always handle the home key here, so applications
2190         // can never break it, although if keyguard is on, we do let
2191         // it handle it, because that gives us the correct 5 second
2192         // timeout.
2193         if (keyCode == KeyEvent.KEYCODE_HOME) {
2194
2195             // If we have released the home key, and didn't do anything else
2196             // while it was pressed, then it is time to go home!
2197             if (!down) {
2198                 cancelPreloadRecentApps();
2199
2200                 mHomePressed = false;
2201                 if (mHomeConsumed) {
2202                     mHomeConsumed = false;
2203                     return -1;
2204                 }
2205
2206                 if (canceled) {
2207                     Log.i(TAG, "Ignoring HOME; event canceled.");
2208                     return -1;
2209                 }
2210
2211                 // If an incoming call is ringing, HOME is totally disabled.
2212                 // (The user is already on the InCallUI at this point,
2213                 // and his ONLY options are to answer or reject the call.)
2214                 TelecomManager telecomManager = getTelecommService();
2215                 if (telecomManager != null && telecomManager.isRinging()) {
2216                     Log.i(TAG, "Ignoring HOME; there's a ringing incoming call.");
2217                     return -1;
2218                 }
2219
2220                 // Delay handling home if a double-tap is possible.
2221                 if (mDoubleTapOnHomeBehavior != DOUBLE_TAP_HOME_NOTHING) {
2222                     mHandler.removeCallbacks(mHomeDoubleTapTimeoutRunnable); // just in case
2223                     mHomeDoubleTapPending = true;
2224                     mHandler.postDelayed(mHomeDoubleTapTimeoutRunnable,
2225                             ViewConfiguration.getDoubleTapTimeout());
2226                     return -1;
2227                 }
2228
2229                 // If there's a dream running then use home to escape the dream
2230                 // but don't actually go home.
2231                 if (mDreamManagerInternal != null && mDreamManagerInternal.isDreaming()) {
2232                     mDreamManagerInternal.stopDream(false /*immediate*/);
2233                     return -1;
2234                 }
2235
2236                 // Go home!
2237                 launchHomeFromHotKey();
2238                 return -1;
2239             }
2240
2241             // If a system window has focus, then it doesn't make sense
2242             // right now to interact with applications.
2243             WindowManager.LayoutParams attrs = win != null ? win.getAttrs() : null;
2244             if (attrs != null) {
2245                 final int type = attrs.type;
2246                 if (type == WindowManager.LayoutParams.TYPE_KEYGUARD_SCRIM
2247                         || type == WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG
2248                         || (attrs.privateFlags & PRIVATE_FLAG_KEYGUARD) != 0) {
2249                     // the "app" is keyguard, so give it the key
2250                     return 0;
2251                 }
2252                 final int typeCount = WINDOW_TYPES_WHERE_HOME_DOESNT_WORK.length;
2253                 for (int i=0; i<typeCount; i++) {
2254                     if (type == WINDOW_TYPES_WHERE_HOME_DOESNT_WORK[i]) {
2255                         // don't do anything, but also don't pass it to the app
2256                         return -1;
2257                     }
2258                 }
2259             }
2260
2261             // Remember that home is pressed and handle special actions.
2262             if (repeatCount == 0) {
2263                 mHomePressed = true;
2264                 if (mHomeDoubleTapPending) {
2265                     mHomeDoubleTapPending = false;
2266                     mHandler.removeCallbacks(mHomeDoubleTapTimeoutRunnable);
2267                     handleDoubleTapOnHome();
2268                 } else if (mLongPressOnHomeBehavior == LONG_PRESS_HOME_RECENT_SYSTEM_UI
2269                         || mDoubleTapOnHomeBehavior == DOUBLE_TAP_HOME_RECENT_SYSTEM_UI) {
2270                     preloadRecentApps();
2271                 }
2272             } else if ((event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0) {
2273                 if (!keyguardOn) {
2274                     handleLongPressOnHome();
2275                 }
2276             }
2277             return -1;
2278         } else if (keyCode == KeyEvent.KEYCODE_MENU) {
2279             // Hijack modified menu keys for debugging features
2280             final int chordBug = KeyEvent.META_SHIFT_ON;
2281
2282             if (down && repeatCount == 0) {
2283                 if (mEnableShiftMenuBugReports && (metaState & chordBug) == chordBug) {
2284                     Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
2285                     mContext.sendOrderedBroadcastAsUser(intent, UserHandle.CURRENT,
2286                             null, null, null, 0, null, null);
2287                     return -1;
2288                 } else if (SHOW_PROCESSES_ON_ALT_MENU &&
2289                         (metaState & KeyEvent.META_ALT_ON) == KeyEvent.META_ALT_ON) {
2290                     Intent service = new Intent();
2291                     service.setClassName(mContext, "com.android.server.LoadAverageService");
2292                     ContentResolver res = mContext.getContentResolver();
2293                     boolean shown = Settings.Global.getInt(
2294                             res, Settings.Global.SHOW_PROCESSES, 0) != 0;
2295                     if (!shown) {
2296                         mContext.startService(service);
2297                     } else {
2298                         mContext.stopService(service);
2299                     }
2300                     Settings.Global.putInt(
2301                             res, Settings.Global.SHOW_PROCESSES, shown ? 0 : 1);
2302                     return -1;
2303                 }
2304             }
2305         } else if (keyCode == KeyEvent.KEYCODE_SEARCH) {
2306             if (down) {
2307                 if (repeatCount == 0) {
2308                     mSearchKeyShortcutPending = true;
2309                     mConsumeSearchKeyUp = false;
2310                 }
2311             } else {
2312                 mSearchKeyShortcutPending = false;
2313                 if (mConsumeSearchKeyUp) {
2314                     mConsumeSearchKeyUp = false;
2315                     return -1;
2316                 }
2317             }
2318             return 0;
2319         } else if (keyCode == KeyEvent.KEYCODE_APP_SWITCH) {
2320             if (!keyguardOn) {
2321                 if (down && repeatCount == 0) {
2322                     preloadRecentApps();
2323                 } else if (!down) {
2324                     toggleRecentApps();
2325                 }
2326             }
2327             return -1;
2328         } else if (keyCode == KeyEvent.KEYCODE_ASSIST) {
2329             if (down) {
2330                 if (repeatCount == 0) {
2331                     mAssistKeyLongPressed = false;
2332                 } else if (repeatCount == 1) {
2333                     mAssistKeyLongPressed = true;
2334                     if (!keyguardOn) {
2335                          launchAssistLongPressAction();
2336                     }
2337                 }
2338             } else {
2339                 if (mAssistKeyLongPressed) {
2340                     mAssistKeyLongPressed = false;
2341                 } else {
2342                     if (!keyguardOn) {
2343                         launchAssistAction();
2344                     }
2345                 }
2346             }
2347             return -1;
2348         } else if (keyCode == KeyEvent.KEYCODE_VOICE_ASSIST) {
2349             if (!down) {
2350                 Intent voiceIntent;
2351                 if (!keyguardOn) {
2352                     voiceIntent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
2353                 } else {
2354                     voiceIntent = new Intent(RecognizerIntent.ACTION_VOICE_SEARCH_HANDS_FREE);
2355                     voiceIntent.putExtra(RecognizerIntent.EXTRA_SECURE, true);
2356                 }
2357                 mContext.startActivityAsUser(voiceIntent, UserHandle.CURRENT_OR_SELF);
2358             }
2359         } else if (keyCode == KeyEvent.KEYCODE_SYSRQ) {
2360             if (down && repeatCount == 0) {
2361                 mHandler.post(mScreenshotRunnable);
2362             }
2363             return -1;
2364         } else if (keyCode == KeyEvent.KEYCODE_BRIGHTNESS_UP
2365                 || keyCode == KeyEvent.KEYCODE_BRIGHTNESS_DOWN) {
2366             if (down) {
2367                 int direction = keyCode == KeyEvent.KEYCODE_BRIGHTNESS_UP ? 1 : -1;
2368
2369                 // Disable autobrightness if it's on
2370                 int auto = Settings.System.getIntForUser(
2371                         mContext.getContentResolver(),
2372                         Settings.System.SCREEN_BRIGHTNESS_MODE,
2373                         Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL,
2374                         UserHandle.USER_CURRENT_OR_SELF);
2375                 if (auto != 0) {
2376                     Settings.System.putIntForUser(mContext.getContentResolver(),
2377                             Settings.System.SCREEN_BRIGHTNESS_MODE,
2378                             Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL,
2379                             UserHandle.USER_CURRENT_OR_SELF);
2380                 }
2381
2382                 int min = mPowerManager.getMinimumScreenBrightnessSetting();
2383                 int max = mPowerManager.getMaximumScreenBrightnessSetting();
2384                 int step = (max - min + BRIGHTNESS_STEPS - 1) / BRIGHTNESS_STEPS * direction;
2385                 int brightness = Settings.System.getIntForUser(mContext.getContentResolver(),
2386                         Settings.System.SCREEN_BRIGHTNESS,
2387                         mPowerManager.getDefaultScreenBrightnessSetting(),
2388                         UserHandle.USER_CURRENT_OR_SELF);
2389                 brightness += step;
2390                 // Make sure we don't go beyond the limits.
2391                 brightness = Math.min(max, brightness);
2392                 brightness = Math.max(min, brightness);
2393
2394                 Settings.System.putIntForUser(mContext.getContentResolver(),
2395                         Settings.System.SCREEN_BRIGHTNESS, brightness,
2396                         UserHandle.USER_CURRENT_OR_SELF);
2397                 mContext.startActivityAsUser(new Intent(Intent.ACTION_SHOW_BRIGHTNESS_DIALOG),
2398                         UserHandle.CURRENT_OR_SELF);
2399             }
2400             return -1;
2401         } else if (KeyEvent.isMetaKey(keyCode)) {
2402             if (down) {
2403                 mPendingMetaAction = true;
2404             } else if (mPendingMetaAction) {
2405                 launchAssistAction(Intent.EXTRA_ASSIST_INPUT_HINT_KEYBOARD);
2406             }
2407             return -1;
2408         }
2409
2410         // Shortcuts are invoked through Search+key, so intercept those here
2411         // Any printing key that is chorded with Search should be consumed
2412         // even if no shortcut was invoked.  This prevents text from being
2413         // inadvertently inserted when using a keyboard that has built-in macro
2414         // shortcut keys (that emit Search+x) and some of them are not registered.
2415         if (mSearchKeyShortcutPending) {
2416             final KeyCharacterMap kcm = event.getKeyCharacterMap();
2417             if (kcm.isPrintingKey(keyCode)) {
2418                 mConsumeSearchKeyUp = true;
2419                 mSearchKeyShortcutPending = false;
2420                 if (down && repeatCount == 0 && !keyguardOn) {
2421                     Intent shortcutIntent = mShortcutManager.getIntent(kcm, keyCode, metaState);
2422                     if (shortcutIntent != null) {
2423                         shortcutIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2424                         try {
2425                             mContext.startActivityAsUser(shortcutIntent, UserHandle.CURRENT);
2426                         } catch (ActivityNotFoundException ex) {
2427                             Slog.w(TAG, "Dropping shortcut key combination because "
2428                                     + "the activity to which it is registered was not found: "
2429                                     + "SEARCH+" + KeyEvent.keyCodeToString(keyCode), ex);
2430                         }
2431                     } else {
2432                         Slog.i(TAG, "Dropping unregistered shortcut key combination: "
2433                                 + "SEARCH+" + KeyEvent.keyCodeToString(keyCode));
2434                     }
2435                 }
2436                 return -1;
2437             }
2438         }
2439
2440         // Invoke shortcuts using Meta.
2441         if (down && repeatCount == 0 && !keyguardOn
2442                 && (metaState & KeyEvent.META_META_ON) != 0) {
2443             final KeyCharacterMap kcm = event.getKeyCharacterMap();
2444             if (kcm.isPrintingKey(keyCode)) {
2445                 Intent shortcutIntent = mShortcutManager.getIntent(kcm, keyCode,
2446                         metaState & ~(KeyEvent.META_META_ON
2447                                 | KeyEvent.META_META_LEFT_ON | KeyEvent.META_META_RIGHT_ON));
2448                 if (shortcutIntent != null) {
2449                     shortcutIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2450                     try {
2451                         mContext.startActivityAsUser(shortcutIntent, UserHandle.CURRENT);
2452                     } catch (ActivityNotFoundException ex) {
2453                         Slog.w(TAG, "Dropping shortcut key combination because "
2454                                 + "the activity to which it is registered was not found: "
2455                                 + "META+" + KeyEvent.keyCodeToString(keyCode), ex);
2456                     }
2457                     return -1;
2458                 }
2459             }
2460         }
2461
2462         // Handle application launch keys.
2463         if (down && repeatCount == 0 && !keyguardOn) {
2464             String category = sApplicationLaunchKeyCategories.get(keyCode);
2465             if (category != null) {
2466                 Intent intent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, category);
2467                 intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2468                 try {
2469                     mContext.startActivityAsUser(intent, UserHandle.CURRENT);
2470                 } catch (ActivityNotFoundException ex) {
2471                     Slog.w(TAG, "Dropping application launch key because "
2472                             + "the activity to which it is registered was not found: "
2473                             + "keyCode=" + keyCode + ", category=" + category, ex);
2474                 }
2475                 return -1;
2476             }
2477         }
2478
2479         // Display task switcher for ALT-TAB.
2480         if (down && repeatCount == 0 && keyCode == KeyEvent.KEYCODE_TAB) {
2481             if (mRecentAppsHeldModifiers == 0 && !keyguardOn) {
2482                 final int shiftlessModifiers = event.getModifiers() & ~KeyEvent.META_SHIFT_MASK;
2483                 if (KeyEvent.metaStateHasModifiers(shiftlessModifiers, KeyEvent.META_ALT_ON)) {
2484                     mRecentAppsHeldModifiers = shiftlessModifiers;
2485                     showRecentApps(true);
2486                     return -1;
2487                 }
2488             }
2489         } else if (!down && mRecentAppsHeldModifiers != 0
2490                 && (metaState & mRecentAppsHeldModifiers) == 0) {
2491             mRecentAppsHeldModifiers = 0;
2492             hideRecentApps(true, false);
2493         }
2494
2495         // Handle keyboard language switching.
2496         if (down && repeatCount == 0
2497                 && (keyCode == KeyEvent.KEYCODE_LANGUAGE_SWITCH
2498                         || (keyCode == KeyEvent.KEYCODE_SPACE
2499                                 && (metaState & KeyEvent.META_CTRL_MASK) != 0))) {
2500             int direction = (metaState & KeyEvent.META_SHIFT_MASK) != 0 ? -1 : 1;
2501             mWindowManagerFuncs.switchKeyboardLayout(event.getDeviceId(), direction);
2502             return -1;
2503         }
2504         if (mLanguageSwitchKeyPressed && !down
2505                 && (keyCode == KeyEvent.KEYCODE_LANGUAGE_SWITCH
2506                         || keyCode == KeyEvent.KEYCODE_SPACE)) {
2507             mLanguageSwitchKeyPressed = false;
2508             return -1;
2509         }
2510
2511         if (mGlobalKeyManager.handleGlobalKey(mContext, keyCode, event)) {
2512             return -1;
2513         }
2514
2515         // Reserve all the META modifier combos for system behavior
2516         if ((metaState & KeyEvent.META_META_ON) != 0) {
2517             return -1;
2518         }
2519
2520         // Let the application handle the key.
2521         return 0;
2522     }
2523
2524     /** {@inheritDoc} */
2525     @Override
2526     public KeyEvent dispatchUnhandledKey(WindowState win, KeyEvent event, int policyFlags) {
2527         // Note: This method is only called if the initial down was unhandled.
2528         if (DEBUG_INPUT) {
2529             Slog.d(TAG, "Unhandled key: win=" + win + ", action=" + event.getAction()
2530                     + ", flags=" + event.getFlags()
2531                     + ", keyCode=" + event.getKeyCode()
2532                     + ", scanCode=" + event.getScanCode()
2533                     + ", metaState=" + event.getMetaState()
2534                     + ", repeatCount=" + event.getRepeatCount()
2535                     + ", policyFlags=" + policyFlags);
2536         }
2537
2538         KeyEvent fallbackEvent = null;
2539         if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
2540             final KeyCharacterMap kcm = event.getKeyCharacterMap();
2541             final int keyCode = event.getKeyCode();
2542             final int metaState = event.getMetaState();
2543             final boolean initialDown = event.getAction() == KeyEvent.ACTION_DOWN
2544                     && event.getRepeatCount() == 0;
2545
2546             // Check for fallback actions specified by the key character map.
2547             final FallbackAction fallbackAction;
2548             if (initialDown) {
2549                 fallbackAction = kcm.getFallbackAction(keyCode, metaState);
2550             } else {
2551                 fallbackAction = mFallbackActions.get(keyCode);
2552             }
2553
2554             if (fallbackAction != null) {
2555                 if (DEBUG_INPUT) {
2556                     Slog.d(TAG, "Fallback: keyCode=" + fallbackAction.keyCode
2557                             + " metaState=" + Integer.toHexString(fallbackAction.metaState));
2558                 }
2559
2560                 final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK;
2561                 fallbackEvent = KeyEvent.obtain(
2562                         event.getDownTime(), event.getEventTime(),
2563                         event.getAction(), fallbackAction.keyCode,
2564                         event.getRepeatCount(), fallbackAction.metaState,
2565                         event.getDeviceId(), event.getScanCode(),
2566                         flags, event.getSource(), null);
2567
2568                 if (!interceptFallback(win, fallbackEvent, policyFlags)) {
2569                     fallbackEvent.recycle();
2570                     fallbackEvent = null;
2571                 }
2572
2573                 if (initialDown) {
2574                     mFallbackActions.put(keyCode, fallbackAction);
2575                 } else if (event.getAction() == KeyEvent.ACTION_UP) {
2576                     mFallbackActions.remove(keyCode);
2577                     fallbackAction.recycle();
2578                 }
2579             }
2580         }
2581
2582         if (DEBUG_INPUT) {
2583             if (fallbackEvent == null) {
2584                 Slog.d(TAG, "No fallback.");
2585             } else {
2586                 Slog.d(TAG, "Performing fallback: " + fallbackEvent);
2587             }
2588         }
2589         return fallbackEvent;
2590     }
2591
2592     private boolean interceptFallback(WindowState win, KeyEvent fallbackEvent, int policyFlags) {
2593         int actions = interceptKeyBeforeQueueing(fallbackEvent, policyFlags);
2594         if ((actions & ACTION_PASS_TO_USER) != 0) {
2595             long delayMillis = interceptKeyBeforeDispatching(
2596                     win, fallbackEvent, policyFlags);
2597             if (delayMillis == 0) {
2598                 return true;
2599             }
2600         }
2601         return false;
2602     }
2603
2604     private void launchAssistLongPressAction() {
2605         performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false);
2606         sendCloseSystemWindows(SYSTEM_DIALOG_REASON_ASSIST);
2607
2608         // launch the search activity
2609         Intent intent = new Intent(Intent.ACTION_SEARCH_LONG_PRESS);
2610         intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
2611         try {
2612             // TODO: This only stops the factory-installed search manager.
2613             // Need to formalize an API to handle others
2614             SearchManager searchManager = getSearchManager();
2615             if (searchManager != null) {
2616                 searchManager.stopSearch();
2617             }
2618             mContext.startActivityAsUser(intent, UserHandle.CURRENT);
2619         } catch (ActivityNotFoundException e) {
2620             Slog.w(TAG, "No activity to handle assist long press action.", e);
2621         }
2622     }
2623
2624     private void launchAssistAction() {
2625         launchAssistAction(null);
2626     }
2627
2628     private void launchAssistAction(String hint) {
2629         sendCloseSystemWindows(SYSTEM_DIALOG_REASON_ASSIST);
2630         Intent intent = ((SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE))
2631                 .getAssistIntent(mContext, true, UserHandle.USER_CURRENT);
2632         if (intent != null) {
2633             if (hint != null) {
2634                 intent.putExtra(hint, true);
2635             }
2636             intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
2637                     | Intent.FLAG_ACTIVITY_SINGLE_TOP
2638                     | Intent.FLAG_ACTIVITY_CLEAR_TOP);
2639             try {
2640                 mContext.startActivityAsUser(intent, UserHandle.CURRENT);
2641             } catch (ActivityNotFoundException e) {
2642                 Slog.w(TAG, "No activity to handle assist action.", e);
2643             }
2644         }
2645     }
2646
2647     private SearchManager getSearchManager() {
2648         if (mSearchManager == null) {
2649             mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE);
2650         }
2651         return mSearchManager;
2652     }
2653
2654     private void preloadRecentApps() {
2655         mPreloadedRecentApps = true;
2656         try {
2657             IStatusBarService statusbar = getStatusBarService();
2658             if (statusbar != null) {
2659                 statusbar.preloadRecentApps();
2660             }
2661         } catch (RemoteException e) {
2662             Slog.e(TAG, "RemoteException when preloading recent apps", e);
2663             // re-acquire status bar service next time it is needed.
2664             mStatusBarService = null;
2665         }
2666     }
2667
2668     private void cancelPreloadRecentApps() {
2669         if (mPreloadedRecentApps) {
2670             mPreloadedRecentApps = false;
2671             try {
2672                 IStatusBarService statusbar = getStatusBarService();
2673                 if (statusbar != null) {
2674                     statusbar.cancelPreloadRecentApps();
2675                 }
2676             } catch (RemoteException e) {
2677                 Slog.e(TAG, "RemoteException when cancelling recent apps preload", e);
2678                 // re-acquire status bar service next time it is needed.
2679                 mStatusBarService = null;
2680             }
2681         }
2682     }
2683
2684     private void toggleRecentApps() {
2685         mPreloadedRecentApps = false; // preloading no longer needs to be canceled
2686         try {
2687             IStatusBarService statusbar = getStatusBarService();
2688             if (statusbar != null) {
2689                 statusbar.toggleRecentApps();
2690             }
2691         } catch (RemoteException e) {
2692             Slog.e(TAG, "RemoteException when toggling recent apps", e);
2693             // re-acquire status bar service next time it is needed.
2694             mStatusBarService = null;
2695         }
2696     }
2697
2698     @Override
2699     public void showRecentApps() {
2700         mHandler.removeMessages(MSG_DISPATCH_SHOW_RECENTS);
2701         mHandler.sendEmptyMessage(MSG_DISPATCH_SHOW_RECENTS);
2702     }
2703
2704     private void showRecentApps(boolean triggeredFromAltTab) {
2705         mPreloadedRecentApps = false; // preloading no longer needs to be canceled
2706         try {
2707             IStatusBarService statusbar = getStatusBarService();
2708             if (statusbar != null) {
2709                 statusbar.showRecentApps(triggeredFromAltTab);
2710             }
2711         } catch (RemoteException e) {
2712             Slog.e(TAG, "RemoteException when showing recent apps", e);
2713             // re-acquire status bar service next time it is needed.
2714             mStatusBarService = null;
2715         }
2716     }
2717
2718     private void hideRecentApps(boolean triggeredFromAltTab, boolean triggeredFromHome) {
2719         mPreloadedRecentApps = false; // preloading no longer needs to be canceled
2720         try {
2721             IStatusBarService statusbar = getStatusBarService();
2722             if (statusbar != null) {
2723                 statusbar.hideRecentApps(triggeredFromAltTab, triggeredFromHome);
2724             }
2725         } catch (RemoteException e) {
2726             Slog.e(TAG, "RemoteException when closing recent apps", e);
2727             // re-acquire status bar service next time it is needed.
2728             mStatusBarService = null;
2729         }
2730     }
2731
2732     /**
2733      * A home key -> launch home action was detected.  Take the appropriate action
2734      * given the situation with the keyguard.
2735      */
2736     void launchHomeFromHotKey() {
2737         if (mKeyguardDelegate != null && mKeyguardDelegate.isShowingAndNotOccluded()) {
2738             // don't launch home if keyguard showing
2739         } else if (!mHideLockScreen && mKeyguardDelegate.isInputRestricted()) {
2740             // when in keyguard restricted mode, must first verify unlock
2741             // before launching home
2742             mKeyguardDelegate.verifyUnlock(new OnKeyguardExitResult() {
2743                 @Override
2744                 public void onKeyguardExitResult(boolean success) {
2745                     if (success) {
2746                         try {
2747                             ActivityManagerNative.getDefault().stopAppSwitches();
2748                         } catch (RemoteException e) {
2749                         }
2750                         sendCloseSystemWindows(SYSTEM_DIALOG_REASON_HOME_KEY);
2751                         startDockOrHome();
2752                     }
2753                 }
2754             });
2755         } else {
2756             // no keyguard stuff to worry about, just launch home!
2757             try {
2758                 ActivityManagerNative.getDefault().stopAppSwitches();
2759             } catch (RemoteException e) {
2760             }
2761             if (mRecentsVisible) {
2762                 // Hide Recents and notify it to launch Home
2763                 awakenDreams();
2764                 sendCloseSystemWindows(SYSTEM_DIALOG_REASON_HOME_KEY);
2765                 hideRecentApps(false, true);
2766             } else {
2767                 // Otherwise, just launch Home
2768                 sendCloseSystemWindows(SYSTEM_DIALOG_REASON_HOME_KEY);
2769                 startDockOrHome();
2770             }
2771         }
2772     }
2773
2774     private final Runnable mClearHideNavigationFlag = new Runnable() {
2775         @Override
2776         public void run() {
2777             synchronized (mWindowManagerFuncs.getWindowManagerLock()) {
2778                 // Clear flags.
2779                 mForceClearedSystemUiFlags &=
2780                         ~View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
2781             }
2782             mWindowManagerFuncs.reevaluateStatusBarVisibility();
2783         }
2784     };
2785
2786     /**
2787      * Input handler used while nav bar is hidden.  Captures any touch on the screen,
2788      * to determine when the nav bar should be shown and prevent applications from
2789      * receiving those touches.
2790      */
2791     final class HideNavInputEventReceiver extends InputEventReceiver {
2792         public HideNavInputEventReceiver(InputChannel inputChannel, Looper looper) {
2793             super(inputChannel, looper);
2794         }
2795
2796         @Override
2797         public void onInputEvent(InputEvent event) {
2798             boolean handled = false;
2799             try {
2800                 if (event instanceof MotionEvent
2801                         && (event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
2802                     final MotionEvent motionEvent = (MotionEvent)event;
2803                     if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
2804                         // When the user taps down, we re-show the nav bar.
2805                         boolean changed = false;
2806                         synchronized (mWindowManagerFuncs.getWindowManagerLock()) {
2807                             // Any user activity always causes us to show the
2808                             // navigation controls, if they had been hidden.
2809                             // We also clear the low profile and only content
2810                             // flags so that tapping on the screen will atomically
2811                             // restore all currently hidden screen decorations.
2812                             int newVal = mResettingSystemUiFlags |
2813                                     View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
2814                                     View.SYSTEM_UI_FLAG_LOW_PROFILE |
2815                                     View.SYSTEM_UI_FLAG_FULLSCREEN;
2816                             if (mResettingSystemUiFlags != newVal) {
2817                                 mResettingSystemUiFlags = newVal;
2818                                 changed = true;
2819                             }
2820                             // We don't allow the system's nav bar to be hidden
2821                             // again for 1 second, to prevent applications from
2822                             // spamming us and keeping it from being shown.
2823                             newVal = mForceClearedSystemUiFlags |
2824                                     View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
2825                             if (mForceClearedSystemUiFlags != newVal) {
2826                                 mForceClearedSystemUiFlags = newVal;
2827                                 changed = true;
2828                                 mHandler.postDelayed(mClearHideNavigationFlag, 1000);
2829                             }
2830                         }
2831                         if (changed) {
2832                             mWindowManagerFuncs.reevaluateStatusBarVisibility();
2833                         }
2834                     }
2835                 }
2836             } finally {
2837                 finishInputEvent(event, handled);
2838             }
2839         }
2840     }
2841     final InputEventReceiver.Factory mHideNavInputEventReceiverFactory =
2842             new InputEventReceiver.Factory() {
2843         @Override
2844         public InputEventReceiver createInputEventReceiver(
2845                 InputChannel inputChannel, Looper looper) {
2846             return new HideNavInputEventReceiver(inputChannel, looper);
2847         }
2848     };
2849
2850     @Override
2851     public int adjustSystemUiVisibilityLw(int visibility) {
2852         mStatusBarController.adjustSystemUiVisibilityLw(mLastSystemUiFlags, visibility);
2853         mNavigationBarController.adjustSystemUiVisibilityLw(mLastSystemUiFlags, visibility);
2854         mRecentsVisible = (visibility & View.RECENT_APPS_VISIBLE) > 0;
2855
2856         // Reset any bits in mForceClearingStatusBarVisibility that
2857         // are now clear.
2858         mResettingSystemUiFlags &= visibility;
2859         // Clear any bits in the new visibility that are currently being
2860         // force cleared, before reporting it.
2861         return visibility & ~mResettingSystemUiFlags
2862                 & ~mForceClearedSystemUiFlags;
2863     }
2864
2865     @Override
2866     public void getContentInsetHintLw(WindowManager.LayoutParams attrs, Rect contentInset) {
2867         final int fl = PolicyControl.getWindowFlags(null, attrs);
2868         final int sysuiVis = PolicyControl.getSystemUiVisibility(null, attrs);
2869         final int systemUiVisibility = (sysuiVis | attrs.subtreeSystemUiVisibility);
2870
2871         if ((fl & (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR))
2872                 == (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR)) {
2873             int availRight, availBottom;
2874             if (canHideNavigationBar() &&
2875                     (systemUiVisibility & View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION) != 0) {
2876                 availRight = mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
2877                 availBottom = mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
2878             } else {
2879                 availRight = mRestrictedScreenLeft + mRestrictedScreenWidth;
2880                 availBottom = mRestrictedScreenTop + mRestrictedScreenHeight;
2881             }
2882             if ((systemUiVisibility & View.SYSTEM_UI_FLAG_LAYOUT_STABLE) != 0) {
2883                 if ((fl & FLAG_FULLSCREEN) != 0) {
2884                     contentInset.set(mStableFullscreenLeft, mStableFullscreenTop,
2885                             availRight - mStableFullscreenRight,
2886                             availBottom - mStableFullscreenBottom);
2887                 } else {
2888                     contentInset.set(mStableLeft, mStableTop,
2889                             availRight - mStableRight, availBottom - mStableBottom);
2890                 }
2891             } else if ((fl & FLAG_FULLSCREEN) != 0 || (fl & FLAG_LAYOUT_IN_OVERSCAN) != 0) {
2892                 contentInset.setEmpty();
2893             } else if ((systemUiVisibility & (View.SYSTEM_UI_FLAG_FULLSCREEN
2894                         | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN)) == 0) {
2895                 contentInset.set(mCurLeft, mCurTop,
2896                         availRight - mCurRight, availBottom - mCurBottom);
2897             } else {
2898                 contentInset.set(mCurLeft, mCurTop,
2899                         availRight - mCurRight, availBottom - mCurBottom);
2900             }
2901             return;
2902         }
2903         contentInset.setEmpty();
2904     }
2905
2906     /** {@inheritDoc} */
2907     @Override
2908     public void beginLayoutLw(boolean isDefaultDisplay, int displayWidth, int displayHeight,
2909                               int displayRotation) {
2910         final int overscanLeft, overscanTop, overscanRight, overscanBottom;
2911         if (isDefaultDisplay) {
2912             switch (displayRotation) {
2913                 case Surface.ROTATION_90:
2914                     overscanLeft = mOverscanTop;
2915                     overscanTop = mOverscanRight;
2916                     overscanRight = mOverscanBottom;
2917                     overscanBottom = mOverscanLeft;
2918                     break;
2919                 case Surface.ROTATION_180:
2920                     overscanLeft = mOverscanRight;
2921                     overscanTop = mOverscanBottom;
2922                     overscanRight = mOverscanLeft;
2923                     overscanBottom = mOverscanTop;
2924                     break;
2925                 case Surface.ROTATION_270:
2926                     overscanLeft = mOverscanBottom;
2927                     overscanTop = mOverscanLeft;
2928                     overscanRight = mOverscanTop;
2929                     overscanBottom = mOverscanRight;
2930                     break;
2931                 default:
2932                     overscanLeft = mOverscanLeft;
2933                     overscanTop = mOverscanTop;
2934                     overscanRight = mOverscanRight;
2935                     overscanBottom = mOverscanBottom;
2936                     break;
2937             }
2938         } else {
2939             overscanLeft = 0;
2940             overscanTop = 0;
2941             overscanRight = 0;
2942             overscanBottom = 0;
2943         }
2944         mOverscanScreenLeft = mRestrictedOverscanScreenLeft = 0;
2945         mOverscanScreenTop = mRestrictedOverscanScreenTop = 0;
2946         mOverscanScreenWidth = mRestrictedOverscanScreenWidth = displayWidth;
2947         mOverscanScreenHeight = mRestrictedOverscanScreenHeight = displayHeight;
2948         mSystemLeft = 0;
2949         mSystemTop = 0;
2950         mSystemRight = displayWidth;
2951         mSystemBottom = displayHeight;
2952         mUnrestrictedScreenLeft = overscanLeft;
2953         mUnrestrictedScreenTop = overscanTop;
2954         mUnrestrictedScreenWidth = displayWidth - overscanLeft - overscanRight;
2955         mUnrestrictedScreenHeight = displayHeight - overscanTop - overscanBottom;
2956         mRestrictedScreenLeft = mUnrestrictedScreenLeft;
2957         mRestrictedScreenTop = mUnrestrictedScreenTop;
2958         mRestrictedScreenWidth = mSystemGestures.screenWidth = mUnrestrictedScreenWidth;
2959         mRestrictedScreenHeight = mSystemGestures.screenHeight = mUnrestrictedScreenHeight;
2960         mDockLeft = mContentLeft = mVoiceContentLeft = mStableLeft = mStableFullscreenLeft
2961                 = mCurLeft = mUnrestrictedScreenLeft;
2962         mDockTop = mContentTop = mVoiceContentTop = mStableTop = mStableFullscreenTop
2963                 = mCurTop = mUnrestrictedScreenTop;
2964         mDockRight = mContentRight = mVoiceContentRight = mStableRight = mStableFullscreenRight
2965                 = mCurRight = displayWidth - overscanRight;
2966         mDockBottom = mContentBottom = mVoiceContentBottom = mStableBottom = mStableFullscreenBottom
2967                 = mCurBottom = displayHeight - overscanBottom;
2968         mDockLayer = 0x10000000;
2969         mStatusBarLayer = -1;
2970
2971         // start with the current dock rect, which will be (0,0,displayWidth,displayHeight)
2972         final Rect pf = mTmpParentFrame;
2973         final Rect df = mTmpDisplayFrame;
2974         final Rect of = mTmpOverscanFrame;
2975         final Rect vf = mTmpVisibleFrame;
2976         final Rect dcf = mTmpDecorFrame;
2977         pf.left = df.left = of.left = vf.left = mDockLeft;
2978         pf.top = df.top = of.top = vf.top = mDockTop;
2979         pf.right = df.right = of.right = vf.right = mDockRight;
2980         pf.bottom = df.bottom = of.bottom = vf.bottom = mDockBottom;
2981         dcf.setEmpty();  // Decor frame N/A for system bars.
2982
2983         if (isDefaultDisplay) {
2984             // For purposes of putting out fake window up to steal focus, we will
2985             // drive nav being hidden only by whether it is requested.
2986             final int sysui = mLastSystemUiFlags;
2987             boolean navVisible = (sysui & View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0;
2988             boolean navTranslucent = (sysui
2989                     & (View.NAVIGATION_BAR_TRANSLUCENT | View.SYSTEM_UI_TRANSPARENT)) != 0;
2990             boolean immersive = (sysui & View.SYSTEM_UI_FLAG_IMMERSIVE) != 0;
2991             boolean immersiveSticky = (sysui & View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY) != 0;
2992             boolean navAllowedHidden = immersive || immersiveSticky;
2993             navTranslucent &= !immersiveSticky;  // transient trumps translucent
2994             boolean isKeyguardShowing = isStatusBarKeyguard() && !mHideLockScreen;
2995             if (!isKeyguardShowing) {
2996                 navTranslucent &= areTranslucentBarsAllowed();
2997             }
2998
2999             // When the navigation bar isn't visible, we put up a fake
3000             // input window to catch all touch events.  This way we can
3001             // detect when the user presses anywhere to bring back the nav
3002             // bar and ensure the application doesn't see the event.
3003             if (navVisible || navAllowedHidden) {
3004                 if (mHideNavFakeWindow != null) {
3005                     mHideNavFakeWindow.dismiss();
3006                     mHideNavFakeWindow = null;
3007                 }
3008             } else if (mHideNavFakeWindow == null) {
3009                 mHideNavFakeWindow = mWindowManagerFuncs.addFakeWindow(
3010                         mHandler.getLooper(), mHideNavInputEventReceiverFactory,
3011                         "hidden nav", WindowManager.LayoutParams.TYPE_HIDDEN_NAV_CONSUMER, 0,
3012                         0, false, false, true);
3013             }
3014
3015             // For purposes of positioning and showing the nav bar, if we have
3016             // decided that it can't be hidden (because of the screen aspect ratio),
3017             // then take that into account.
3018             navVisible |= !canHideNavigationBar();
3019
3020             boolean updateSysUiVisibility = false;
3021             if (mNavigationBar != null) {
3022                 boolean transientNavBarShowing = mNavigationBarController.isTransientShowing();
3023                 // Force the navigation bar to its appropriate place and
3024                 // size.  We need to do this directly, instead of relying on
3025                 // it to bubble up from the nav bar, because this needs to
3026                 // change atomically with screen rotations.
3027                 mNavigationBarOnBottom = (!mNavigationBarCanMove || displayWidth < displayHeight);
3028                 if (mNavigationBarOnBottom) {
3029                     // It's a system nav bar or a portrait screen; nav bar goes on bottom.
3030                     int top = displayHeight - overscanBottom
3031                             - mNavigationBarHeightForRotation[displayRotation];
3032                     mTmpNavigationFrame.set(0, top, displayWidth, displayHeight - overscanBottom);
3033                     mStableBottom = mStableFullscreenBottom = mTmpNavigationFrame.top;
3034                     if (transientNavBarShowing) {
3035                         mNavigationBarController.setBarShowingLw(true);
3036                     } else if (navVisible) {
3037                         mNavigationBarController.setBarShowingLw(true);
3038                         mDockBottom = mTmpNavigationFrame.top;
3039                         mRestrictedScreenHeight = mDockBottom - mRestrictedScreenTop;
3040                         mRestrictedOverscanScreenHeight = mDockBottom - mRestrictedOverscanScreenTop;
3041                     } else {
3042                         // We currently want to hide the navigation UI.
3043                         mNavigationBarController.setBarShowingLw(false);
3044                     }
3045                     if (navVisible && !navTranslucent && !navAllowedHidden
3046                             && !mNavigationBar.isAnimatingLw()
3047                             && !mNavigationBarController.wasRecentlyTranslucent()) {
3048                         // If the opaque nav bar is currently requested to be visible,
3049                         // and not in the process of animating on or off, then
3050                         // we can tell the app that it is covered by it.
3051                         mSystemBottom = mTmpNavigationFrame.top;
3052                     }
3053                 } else {
3054                     // Landscape screen; nav bar goes to the right.
3055                     int left = displayWidth - overscanRight
3056                             - mNavigationBarWidthForRotation[displayRotation];
3057                     mTmpNavigationFrame.set(left, 0, displayWidth - overscanRight, displayHeight);
3058                     mStableRight = mStableFullscreenRight = mTmpNavigationFrame.left;
3059                     if (transientNavBarShowing) {
3060                         mNavigationBarController.setBarShowingLw(true);
3061                     } else if (navVisible) {
3062                         mNavigationBarController.setBarShowingLw(true);
3063                         mDockRight = mTmpNavigationFrame.left;
3064                         mRestrictedScreenWidth = mDockRight - mRestrictedScreenLeft;
3065                         mRestrictedOverscanScreenWidth = mDockRight - mRestrictedOverscanScreenLeft;
3066                     } else {
3067                         // We currently want to hide the navigation UI.
3068                         mNavigationBarController.setBarShowingLw(false);
3069                     }
3070                     if (navVisible && !navTranslucent && !mNavigationBar.isAnimatingLw()
3071                             && !mNavigationBarController.wasRecentlyTranslucent()) {
3072                         // If the nav bar is currently requested to be visible,
3073                         // and not in the process of animating on or off, then
3074                         // we can tell the app that it is covered by it.
3075                         mSystemRight = mTmpNavigationFrame.left;
3076                     }
3077                 }
3078                 // Make sure the content and current rectangles are updated to
3079                 // account for the restrictions from the navigation bar.
3080                 mContentTop = mVoiceContentTop = mCurTop = mDockTop;
3081                 mContentBottom = mVoiceContentBottom = mCurBottom = mDockBottom;
3082                 mContentLeft = mVoiceContentLeft = mCurLeft = mDockLeft;
3083                 mContentRight = mVoiceContentRight = mCurRight = mDockRight;
3084                 mStatusBarLayer = mNavigationBar.getSurfaceLayer();
3085                 // And compute the final frame.
3086                 mNavigationBar.computeFrameLw(mTmpNavigationFrame, mTmpNavigationFrame,
3087                         mTmpNavigationFrame, mTmpNavigationFrame, mTmpNavigationFrame, dcf,
3088                         mTmpNavigationFrame);
3089                 if (DEBUG_LAYOUT) Slog.i(TAG, "mNavigationBar frame: " + mTmpNavigationFrame);
3090                 if (mNavigationBarController.checkHiddenLw()) {
3091                     updateSysUiVisibility = true;
3092                 }
3093             }
3094             if (DEBUG_LAYOUT) Slog.i(TAG, String.format("mDock rect: (%d,%d - %d,%d)",
3095                     mDockLeft, mDockTop, mDockRight, mDockBottom));
3096
3097             // decide where the status bar goes ahead of time
3098             if (mStatusBar != null) {
3099                 // apply any navigation bar insets
3100                 pf.left = df.left = of.left = mUnrestrictedScreenLeft;
3101                 pf.top = df.top = of.top = mUnrestrictedScreenTop;
3102                 pf.right = df.right = of.right = mUnrestrictedScreenWidth + mUnrestrictedScreenLeft;
3103                 pf.bottom = df.bottom = of.bottom = mUnrestrictedScreenHeight
3104                         + mUnrestrictedScreenTop;
3105                 vf.left = mStableLeft;
3106                 vf.top = mStableTop;
3107                 vf.right = mStableRight;
3108                 vf.bottom = mStableBottom;
3109
3110                 mStatusBarLayer = mStatusBar.getSurfaceLayer();
3111
3112                 // Let the status bar determine its size.
3113                 mStatusBar.computeFrameLw(pf, df, vf, vf, vf, dcf, vf);
3114
3115                 // For layout, the status bar is always at the top with our fixed height.
3116                 mStableTop = mUnrestrictedScreenTop + mStatusBarHeight;
3117
3118                 boolean statusBarTransient = (sysui & View.STATUS_BAR_TRANSIENT) != 0;
3119                 boolean statusBarTranslucent = (sysui
3120                         & (View.STATUS_BAR_TRANSLUCENT | View.SYSTEM_UI_TRANSPARENT)) != 0;
3121                 if (!isKeyguardShowing) {
3122                     statusBarTranslucent &= areTranslucentBarsAllowed();
3123                 }
3124
3125                 // If the status bar is hidden, we don't want to cause
3126                 // windows behind it to scroll.
3127                 if (mStatusBar.isVisibleLw() && !statusBarTransient) {
3128                     // Status bar may go away, so the screen area it occupies
3129                     // is available to apps but just covering them when the
3130                     // status bar is visible.
3131                     mDockTop = mUnrestrictedScreenTop + mStatusBarHeight;
3132
3133                     mContentTop = mVoiceContentTop = mCurTop = mDockTop;
3134                     mContentBottom = mVoiceContentBottom = mCurBottom = mDockBottom;
3135                     mContentLeft = mVoiceContentLeft = mCurLeft = mDockLeft;
3136                     mContentRight = mVoiceContentRight = mCurRight = mDockRight;
3137
3138                     if (DEBUG_LAYOUT) Slog.v(TAG, "Status bar: " +
3139                         String.format(
3140                             "dock=[%d,%d][%d,%d] content=[%d,%d][%d,%d] cur=[%d,%d][%d,%d]",
3141                             mDockLeft, mDockTop, mDockRight, mDockBottom,
3142                             mContentLeft, mContentTop, mContentRight, mContentBottom,
3143                             mCurLeft, mCurTop, mCurRight, mCurBottom));
3144                 }
3145                 if (mStatusBar.isVisibleLw() && !mStatusBar.isAnimatingLw()
3146                         && !statusBarTransient && !statusBarTranslucent
3147                         && !mStatusBarController.wasRecentlyTranslucent()) {
3148                     // If the opaque status bar is currently requested to be visible,
3149                     // and not in the process of animating on or off, then
3150                     // we can tell the app that it is covered by it.
3151                     mSystemTop = mUnrestrictedScreenTop + mStatusBarHeight;
3152                 }
3153                 if (mStatusBarController.checkHiddenLw()) {
3154                     updateSysUiVisibility = true;
3155                 }
3156             }
3157             if (updateSysUiVisibility) {
3158                 updateSystemUiVisibilityLw();
3159             }
3160         }
3161     }
3162
3163     /** {@inheritDoc} */
3164     @Override
3165     public int getSystemDecorLayerLw() {
3166         if (mStatusBar != null) return mStatusBar.getSurfaceLayer();
3167         if (mNavigationBar != null) return mNavigationBar.getSurfaceLayer();
3168         return 0;
3169     }
3170
3171     @Override
3172     public void getContentRectLw(Rect r) {
3173         r.set(mContentLeft, mContentTop, mContentRight, mContentBottom);
3174     }
3175
3176     void setAttachedWindowFrames(WindowState win, int fl, int adjust, WindowState attached,
3177             boolean insetDecors, Rect pf, Rect df, Rect of, Rect cf, Rect vf) {
3178         if (win.getSurfaceLayer() > mDockLayer && attached.getSurfaceLayer() < mDockLayer) {
3179             // Here's a special case: if this attached window is a panel that is
3180             // above the dock window, and the window it is attached to is below
3181             // the dock window, then the frames we computed for the window it is
3182             // attached to can not be used because the dock is effectively part
3183             // of the underlying window and the attached window is floating on top
3184             // of the whole thing.  So, we ignore the attached window and explicitly
3185             // compute the frames that would be appropriate without the dock.
3186             df.left = of.left = cf.left = vf.left = mDockLeft;
3187             df.top = of.top = cf.top = vf.top = mDockTop;
3188             df.right = of.right = cf.right = vf.right = mDockRight;
3189             df.bottom = of.bottom = cf.bottom = vf.bottom = mDockBottom;
3190         } else {
3191             // The effective display frame of the attached window depends on
3192             // whether it is taking care of insetting its content.  If not,
3193             // we need to use the parent's content frame so that the entire
3194             // window is positioned within that content.  Otherwise we can use
3195             // the display frame and let the attached window take care of
3196             // positioning its content appropriately.
3197             if (adjust != SOFT_INPUT_ADJUST_RESIZE) {
3198                 cf.set(attached.getOverscanFrameLw());
3199             } else {
3200                 // If the window is resizing, then we want to base the content
3201                 // frame on our attached content frame to resize...  however,
3202                 // things can be tricky if the attached window is NOT in resize
3203                 // mode, in which case its content frame will be larger.
3204                 // Ungh.  So to deal with that, make sure the content frame
3205                 // we end up using is not covering the IM dock.
3206                 cf.set(attached.getContentFrameLw());
3207                 if (attached.isVoiceInteraction()) {
3208                     if (cf.left < mVoiceContentLeft) cf.left = mVoiceContentLeft;
3209                     if (cf.top < mVoiceContentTop) cf.top = mVoiceContentTop;
3210                     if (cf.right > mVoiceContentRight) cf.right = mVoiceContentRight;
3211                     if (cf.bottom > mVoiceContentBottom) cf.bottom = mVoiceContentBottom;
3212                 } else if (attached.getSurfaceLayer() < mDockLayer) {
3213                     if (cf.left < mContentLeft) cf.left = mContentLeft;
3214                     if (cf.top < mContentTop) cf.top = mContentTop;
3215                     if (cf.right > mContentRight) cf.right = mContentRight;
3216                     if (cf.bottom > mContentBottom) cf.bottom = mContentBottom;
3217                 }
3218             }
3219             df.set(insetDecors ? attached.getDisplayFrameLw() : cf);
3220             of.set(insetDecors ? attached.getOverscanFrameLw() : cf);
3221             vf.set(attached.getVisibleFrameLw());
3222         }
3223         // The LAYOUT_IN_SCREEN flag is used to determine whether the attached
3224         // window should be positioned relative to its parent or the entire
3225         // screen.
3226         pf.set((fl & FLAG_LAYOUT_IN_SCREEN) == 0
3227                 ? attached.getFrameLw() : df);
3228     }
3229
3230     private void applyStableConstraints(int sysui, int fl, Rect r) {
3231         if ((sysui & View.SYSTEM_UI_FLAG_LAYOUT_STABLE) != 0) {
3232             // If app is requesting a stable layout, don't let the
3233             // content insets go below the stable values.
3234             if ((fl & FLAG_FULLSCREEN) != 0) {
3235                 if (r.left < mStableFullscreenLeft) r.left = mStableFullscreenLeft;
3236                 if (r.top < mStableFullscreenTop) r.top = mStableFullscreenTop;
3237                 if (r.right > mStableFullscreenRight) r.right = mStableFullscreenRight;
3238                 if (r.bottom > mStableFullscreenBottom) r.bottom = mStableFullscreenBottom;
3239             } else {
3240                 if (r.left < mStableLeft) r.left = mStableLeft;
3241                 if (r.top < mStableTop) r.top = mStableTop;
3242                 if (r.right > mStableRight) r.right = mStableRight;
3243                 if (r.bottom > mStableBottom) r.bottom = mStableBottom;
3244             }
3245         }
3246     }
3247
3248     /** {@inheritDoc} */
3249     @Override
3250     public void layoutWindowLw(WindowState win, WindowState attached) {
3251         // we've already done the status bar
3252         final WindowManager.LayoutParams attrs = win.getAttrs();
3253         if ((win == mStatusBar && (attrs.privateFlags & PRIVATE_FLAG_KEYGUARD) == 0) ||
3254                 win == mNavigationBar) {
3255             return;
3256         }
3257         final boolean isDefaultDisplay = win.isDefaultDisplay();
3258         final boolean needsToOffsetInputMethodTarget = isDefaultDisplay &&
3259                 (win == mLastInputMethodTargetWindow && mLastInputMethodWindow != null);
3260         if (needsToOffsetInputMethodTarget) {
3261             if (DEBUG_LAYOUT) Slog.i(TAG, "Offset ime target window by the last ime window state");
3262             offsetInputMethodWindowLw(mLastInputMethodWindow);
3263         }
3264
3265         final int fl = PolicyControl.getWindowFlags(win, attrs);
3266         final int sim = attrs.softInputMode;
3267         final int sysUiFl = PolicyControl.getSystemUiVisibility(win, null);
3268
3269         final Rect pf = mTmpParentFrame;
3270         final Rect df = mTmpDisplayFrame;
3271         final Rect of = mTmpOverscanFrame;
3272         final Rect cf = mTmpContentFrame;
3273         final Rect vf = mTmpVisibleFrame;
3274         final Rect dcf = mTmpDecorFrame;
3275         final Rect sf = mTmpStableFrame;
3276         dcf.setEmpty();
3277
3278         final boolean hasNavBar = (isDefaultDisplay && mHasNavigationBar
3279                 && mNavigationBar != null && mNavigationBar.isVisibleLw());
3280
3281         final int adjust = sim & SOFT_INPUT_MASK_ADJUST;
3282
3283         if (isDefaultDisplay) {
3284             sf.set(mStableLeft, mStableTop, mStableRight, mStableBottom);
3285         } else {
3286             sf.set(mOverscanLeft, mOverscanTop, mOverscanRight, mOverscanBottom);
3287         }
3288
3289         if (!isDefaultDisplay) {
3290             if (attached != null) {
3291                 // If this window is attached to another, our display
3292                 // frame is the same as the one we are attached to.
3293                 setAttachedWindowFrames(win, fl, adjust, attached, true, pf, df, of, cf, vf);
3294             } else {
3295                 // Give the window full screen.
3296                 pf.left = df.left = of.left = cf.left = mOverscanScreenLeft;
3297                 pf.top = df.top = of.top = cf.top = mOverscanScreenTop;
3298                 pf.right = df.right = of.right = cf.right
3299                         = mOverscanScreenLeft + mOverscanScreenWidth;
3300                 pf.bottom = df.bottom = of.bottom = cf.bottom
3301                         = mOverscanScreenTop + mOverscanScreenHeight;
3302             }
3303         } else  if (attrs.type == TYPE_INPUT_METHOD) {
3304             pf.left = df.left = of.left = cf.left = vf.left = mDockLeft;
3305             pf.top = df.top = of.top = cf.top = vf.top = mDockTop;
3306             pf.right = df.right = of.right = cf.right = vf.right = mDockRight;
3307             // IM dock windows layout below the nav bar...
3308             pf.bottom = df.bottom = of.bottom = mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
3309             // ...with content insets above the nav bar
3310             cf.bottom = vf.bottom = mStableBottom;
3311             // IM dock windows always go to the bottom of the screen.
3312             attrs.gravity = Gravity.BOTTOM;
3313             mDockLayer = win.getSurfaceLayer();
3314         } else if (win == mStatusBar && (attrs.privateFlags & PRIVATE_FLAG_KEYGUARD) != 0) {
3315             pf.left = df.left = of.left = mUnrestrictedScreenLeft;
3316             pf.top = df.top = of.top = mUnrestrictedScreenTop;
3317             pf.right = df.right = of.right = mUnrestrictedScreenWidth + mUnrestrictedScreenLeft;
3318             pf.bottom = df.bottom = of.bottom = mUnrestrictedScreenHeight + mUnrestrictedScreenTop;
3319             cf.left = vf.left = mStableLeft;
3320             cf.top = vf.top = mStableTop;
3321             cf.right = vf.right = mStableRight;
3322             vf.bottom = mStableBottom;
3323             cf.bottom = mContentBottom;
3324         } else {
3325
3326             // Default policy decor for the default display
3327             dcf.left = mSystemLeft;
3328             dcf.top = mSystemTop;
3329             dcf.right = mSystemRight;
3330             dcf.bottom = mSystemBottom;
3331             final boolean inheritTranslucentDecor = (attrs.privateFlags
3332                     & WindowManager.LayoutParams.PRIVATE_FLAG_INHERIT_TRANSLUCENT_DECOR) != 0;
3333             final boolean isAppWindow =
3334                     attrs.type >= WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW &&
3335                     attrs.type <= WindowManager.LayoutParams.LAST_APPLICATION_WINDOW;
3336             final boolean topAtRest =
3337                     win == mTopFullscreenOpaqueWindowState && !win.isAnimatingLw();
3338             if (isAppWindow && !inheritTranslucentDecor && !topAtRest) {
3339                 if ((sysUiFl & View.SYSTEM_UI_FLAG_FULLSCREEN) == 0
3340                         && (fl & WindowManager.LayoutParams.FLAG_FULLSCREEN) == 0
3341                         && (fl & WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS) == 0
3342                         && (fl & WindowManager.LayoutParams.
3343                                 FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) == 0) {
3344                     // Ensure policy decor includes status bar
3345                     dcf.top = mStableTop;
3346                 }
3347                 if ((fl & WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION) == 0
3348                         && (sysUiFl & View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0
3349                         && (fl & WindowManager.LayoutParams.
3350                                 FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS) == 0) {
3351                     // Ensure policy decor includes navigation bar
3352                     dcf.bottom = mStableBottom;
3353                     dcf.right = mStableRight;
3354                 }
3355             }
3356
3357             if ((fl & (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR))
3358                     == (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR)) {
3359                 if (DEBUG_LAYOUT) Slog.v(TAG, "layoutWindowLw(" + attrs.getTitle()
3360                             + "): IN_SCREEN, INSET_DECOR");
3361                 // This is the case for a normal activity window: we want it
3362                 // to cover all of the screen space, and it can take care of
3363                 // moving its contents to account for screen decorations that
3364                 // intrude into that space.
3365                 if (attached != null) {
3366                     // If this window is attached to another, our display
3367                     // frame is the same as the one we are attached to.
3368                     setAttachedWindowFrames(win, fl, adjust, attached, true, pf, df, of, cf, vf);
3369                 } else {
3370                     if (attrs.type == TYPE_STATUS_BAR_PANEL
3371                             || attrs.type == TYPE_STATUS_BAR_SUB_PANEL) {
3372                         // Status bar panels are the only windows who can go on top of
3373                         // the status bar.  They are protected by the STATUS_BAR_SERVICE
3374                         // permission, so they have the same privileges as the status
3375                         // bar itself.
3376                         //
3377                         // However, they should still dodge the navigation bar if it exists.
3378
3379                         pf.left = df.left = of.left = hasNavBar
3380                                 ? mDockLeft : mUnrestrictedScreenLeft;
3381                         pf.top = df.top = of.top = mUnrestrictedScreenTop;
3382                         pf.right = df.right = of.right = hasNavBar
3383                                 ? mRestrictedScreenLeft+mRestrictedScreenWidth
3384                                 : mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
3385                         pf.bottom = df.bottom = of.bottom = hasNavBar
3386                                 ? mRestrictedScreenTop+mRestrictedScreenHeight
3387                                 : mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
3388
3389                         if (DEBUG_LAYOUT) Slog.v(TAG, String.format(
3390                                         "Laying out status bar window: (%d,%d - %d,%d)",
3391                                         pf.left, pf.top, pf.right, pf.bottom));
3392                     } else if ((fl & FLAG_LAYOUT_IN_OVERSCAN) != 0
3393                             && attrs.type >= WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW
3394                             && attrs.type <= WindowManager.LayoutParams.LAST_SUB_WINDOW) {
3395                         // Asking to layout into the overscan region, so give it that pure
3396                         // unrestricted area.
3397                         pf.left = df.left = of.left = mOverscanScreenLeft;
3398                         pf.top = df.top = of.top = mOverscanScreenTop;
3399                         pf.right = df.right = of.right = mOverscanScreenLeft + mOverscanScreenWidth;
3400                         pf.bottom = df.bottom = of.bottom = mOverscanScreenTop
3401                                 + mOverscanScreenHeight;
3402                     } else if (canHideNavigationBar()
3403                             && (sysUiFl & View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION) != 0
3404                             && attrs.type >= WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW
3405                             && attrs.type <= WindowManager.LayoutParams.LAST_SUB_WINDOW) {
3406                         // Asking for layout as if the nav bar is hidden, lets the
3407                         // application extend into the unrestricted overscan screen area.  We
3408                         // only do this for application windows to ensure no window that
3409                         // can be above the nav bar can do this.
3410                         pf.left = df.left = mOverscanScreenLeft;
3411                         pf.top = df.top = mOverscanScreenTop;
3412                         pf.right = df.right = mOverscanScreenLeft + mOverscanScreenWidth;
3413                         pf.bottom = df.bottom = mOverscanScreenTop + mOverscanScreenHeight;
3414                         // We need to tell the app about where the frame inside the overscan
3415                         // is, so it can inset its content by that amount -- it didn't ask
3416                         // to actually extend itself into the overscan region.
3417                         of.left = mUnrestrictedScreenLeft;
3418                         of.top = mUnrestrictedScreenTop;
3419                         of.right = mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
3420                         of.bottom = mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
3421                     } else {
3422                         pf.left = df.left = mRestrictedOverscanScreenLeft;
3423                         pf.top = df.top = mRestrictedOverscanScreenTop;
3424                         pf.right = df.right = mRestrictedOverscanScreenLeft
3425                                 + mRestrictedOverscanScreenWidth;
3426                         pf.bottom = df.bottom = mRestrictedOverscanScreenTop
3427                                 + mRestrictedOverscanScreenHeight;
3428                         // We need to tell the app about where the frame inside the overscan
3429                         // is, so it can inset its content by that amount -- it didn't ask
3430                         // to actually extend itself into the overscan region.
3431                         of.left = mUnrestrictedScreenLeft;
3432                         of.top = mUnrestrictedScreenTop;
3433                         of.right = mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
3434                         of.bottom = mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
3435                     }
3436
3437                     if ((fl & FLAG_FULLSCREEN) == 0) {
3438                         if (win.isVoiceInteraction()) {
3439                             cf.left = mVoiceContentLeft;
3440                             cf.top = mVoiceContentTop;
3441                             cf.right = mVoiceContentRight;
3442                             cf.bottom = mVoiceContentBottom;
3443                         } else {
3444                             if (adjust != SOFT_INPUT_ADJUST_RESIZE) {
3445                                 cf.left = mDockLeft;
3446                                 cf.top = mDockTop;
3447                                 cf.right = mDockRight;
3448                                 cf.bottom = mDockBottom;
3449                             } else {
3450                                 cf.left = mContentLeft;
3451                                 cf.top = mContentTop;
3452                                 cf.right = mContentRight;
3453                                 cf.bottom = mContentBottom;
3454                             }
3455                         }
3456                     } else {
3457                         // Full screen windows are always given a layout that is as if the
3458                         // status bar and other transient decors are gone.  This is to avoid
3459                         // bad states when moving from a window that is not hding the
3460                         // status bar to one that is.
3461                         cf.left = mRestrictedScreenLeft;
3462                         cf.top = mRestrictedScreenTop;
3463                         cf.right = mRestrictedScreenLeft + mRestrictedScreenWidth;
3464                         cf.bottom = mRestrictedScreenTop + mRestrictedScreenHeight;
3465                     }
3466                     applyStableConstraints(sysUiFl, fl, cf);
3467                     if (adjust != SOFT_INPUT_ADJUST_NOTHING) {
3468                         vf.left = mCurLeft;
3469                         vf.top = mCurTop;
3470                         vf.right = mCurRight;
3471                         vf.bottom = mCurBottom;
3472                     } else {
3473                         vf.set(cf);
3474                     }
3475                 }
3476             } else if ((fl & FLAG_LAYOUT_IN_SCREEN) != 0 || (sysUiFl
3477                     & (View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
3478                             | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION)) != 0) {
3479                 if (DEBUG_LAYOUT) Slog.v(TAG, "layoutWindowLw(" + attrs.getTitle() +
3480                         "): IN_SCREEN");
3481                 // A window that has requested to fill the entire screen just
3482                 // gets everything, period.
3483                 if (attrs.type == TYPE_STATUS_BAR_PANEL
3484                         || attrs.type == TYPE_STATUS_BAR_SUB_PANEL) {
3485                     pf.left = df.left = of.left = cf.left = hasNavBar
3486                             ? mDockLeft : mUnrestrictedScreenLeft;
3487                     pf.top = df.top = of.top = cf.top = mUnrestrictedScreenTop;
3488                     pf.right = df.right = of.right = cf.right = hasNavBar
3489                                         ? mRestrictedScreenLeft+mRestrictedScreenWidth
3490                                         : mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
3491                     pf.bottom = df.bottom = of.bottom = cf.bottom = hasNavBar
3492                                           ? mRestrictedScreenTop+mRestrictedScreenHeight
3493                                           : mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
3494                     if (DEBUG_LAYOUT) Slog.v(TAG, String.format(
3495                                     "Laying out IN_SCREEN status bar window: (%d,%d - %d,%d)",
3496                                     pf.left, pf.top, pf.right, pf.bottom));
3497                 } else if (attrs.type == TYPE_NAVIGATION_BAR
3498                         || attrs.type == TYPE_NAVIGATION_BAR_PANEL) {
3499                     // The navigation bar has Real Ultimate Power.
3500                     pf.left = df.left = of.left = mUnrestrictedScreenLeft;
3501                     pf.top = df.top = of.top = mUnrestrictedScreenTop;
3502                     pf.right = df.right = of.right = mUnrestrictedScreenLeft
3503                             + mUnrestrictedScreenWidth;
3504                     pf.bottom = df.bottom = of.bottom = mUnrestrictedScreenTop
3505                             + mUnrestrictedScreenHeight;
3506                     if (DEBUG_LAYOUT) Slog.v(TAG, String.format(
3507                                     "Laying out navigation bar window: (%d,%d - %d,%d)",
3508                                     pf.left, pf.top, pf.right, pf.bottom));
3509                 } else if ((attrs.type == TYPE_SECURE_SYSTEM_OVERLAY
3510                                 || attrs.type == TYPE_BOOT_PROGRESS)
3511                         && ((fl & FLAG_FULLSCREEN) != 0)) {
3512                     // Fullscreen secure system overlays get what they ask for.
3513                     pf.left = df.left = of.left = cf.left = mOverscanScreenLeft;
3514                     pf.top = df.top = of.top = cf.top = mOverscanScreenTop;
3515                     pf.right = df.right = of.right = cf.right = mOverscanScreenLeft
3516                             + mOverscanScreenWidth;
3517                     pf.bottom = df.bottom = of.bottom = cf.bottom = mOverscanScreenTop
3518                             + mOverscanScreenHeight;
3519                 } else if (attrs.type == TYPE_BOOT_PROGRESS
3520                         || attrs.type == TYPE_UNIVERSE_BACKGROUND) {
3521                     // Boot progress screen always covers entire display.
3522                     pf.left = df.left = of.left = cf.left = mOverscanScreenLeft;
3523                     pf.top = df.top = of.top = cf.top = mOverscanScreenTop;
3524                     pf.right = df.right = of.right = cf.right = mOverscanScreenLeft
3525                             + mOverscanScreenWidth;
3526                     pf.bottom = df.bottom = of.bottom = cf.bottom = mOverscanScreenTop
3527                             + mOverscanScreenHeight;
3528                 } else if (attrs.type == TYPE_WALLPAPER) {
3529                     // The wallpaper also has Real Ultimate Power, but we want to tell
3530                     // it about the overscan area.
3531                     pf.left = df.left = mOverscanScreenLeft;
3532                     pf.top = df.top = mOverscanScreenTop;
3533                     pf.right = df.right = mOverscanScreenLeft + mOverscanScreenWidth;
3534                     pf.bottom = df.bottom = mOverscanScreenTop + mOverscanScreenHeight;
3535                     of.left = cf.left = mUnrestrictedScreenLeft;
3536                     of.top = cf.top = mUnrestrictedScreenTop;
3537                     of.right = cf.right = mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
3538                     of.bottom = cf.bottom = mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
3539                 } else if ((fl & FLAG_LAYOUT_IN_OVERSCAN) != 0
3540                         && attrs.type >= WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW
3541                         && attrs.type <= WindowManager.LayoutParams.LAST_SUB_WINDOW) {
3542                     // Asking to layout into the overscan region, so give it that pure
3543                     // unrestricted area.
3544                     pf.left = df.left = of.left = cf.left = mOverscanScreenLeft;
3545                     pf.top = df.top = of.top = cf.top = mOverscanScreenTop;
3546                     pf.right = df.right = of.right = cf.right
3547                             = mOverscanScreenLeft + mOverscanScreenWidth;
3548                     pf.bottom = df.bottom = of.bottom = cf.bottom
3549                             = mOverscanScreenTop + mOverscanScreenHeight;
3550                 } else if (canHideNavigationBar()
3551                         && (sysUiFl & View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION) != 0
3552                         && (attrs.type == TYPE_STATUS_BAR
3553                             || attrs.type == TYPE_TOAST
3554                             || (attrs.type >= WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW
3555                             && attrs.type <= WindowManager.LayoutParams.LAST_SUB_WINDOW))) {
3556                     // Asking for layout as if the nav bar is hidden, lets the
3557                     // application extend into the unrestricted screen area.  We
3558                     // only do this for application windows (or toasts) to ensure no window that
3559                     // can be above the nav bar can do this.
3560                     // XXX This assumes that an app asking for this will also
3561                     // ask for layout in only content.  We can't currently figure out
3562                     // what the screen would be if only laying out to hide the nav bar.
3563                     pf.left = df.left = of.left = cf.left = mUnrestrictedScreenLeft;
3564                     pf.top = df.top = of.top = cf.top = mUnrestrictedScreenTop;
3565                     pf.right = df.right = of.right = cf.right = mUnrestrictedScreenLeft
3566                             + mUnrestrictedScreenWidth;
3567                     pf.bottom = df.bottom = of.bottom = cf.bottom = mUnrestrictedScreenTop
3568                             + mUnrestrictedScreenHeight;
3569                 } else {
3570                     pf.left = df.left = of.left = cf.left = mRestrictedScreenLeft;
3571                     pf.top = df.top = of.top = cf.top = mRestrictedScreenTop;
3572                     pf.right = df.right = of.right = cf.right = mRestrictedScreenLeft
3573                             + mRestrictedScreenWidth;
3574                     pf.bottom = df.bottom = of.bottom = cf.bottom = mRestrictedScreenTop
3575                             + mRestrictedScreenHeight;
3576                 }
3577
3578                 applyStableConstraints(sysUiFl, fl, cf);
3579
3580                 if (adjust != SOFT_INPUT_ADJUST_NOTHING) {
3581                     vf.left = mCurLeft;
3582                     vf.top = mCurTop;
3583                     vf.right = mCurRight;
3584                     vf.bottom = mCurBottom;
3585                 } else {
3586                     vf.set(cf);
3587                 }
3588             } else if (attached != null) {
3589                 if (DEBUG_LAYOUT) Slog.v(TAG, "layoutWindowLw(" + attrs.getTitle() +
3590                         "): attached to " + attached);
3591                 // A child window should be placed inside of the same visible
3592                 // frame that its parent had.
3593                 setAttachedWindowFrames(win, fl, adjust, attached, false, pf, df, of, cf, vf);
3594             } else {
3595                 if (DEBUG_LAYOUT) Slog.v(TAG, "layoutWindowLw(" + attrs.getTitle() +
3596                         "): normal window");
3597                 // Otherwise, a normal window must be placed inside the content
3598                 // of all screen decorations.
3599                 if (attrs.type == TYPE_STATUS_BAR_PANEL) {
3600                     // Status bar panels are the only windows who can go on top of
3601                     // the status bar.  They are protected by the STATUS_BAR_SERVICE
3602                     // permission, so they have the same privileges as the status
3603                     // bar itself.
3604                     pf.left = df.left = of.left = cf.left = mRestrictedScreenLeft;
3605                     pf.top = df.top = of.top = cf.top = mRestrictedScreenTop;
3606                     pf.right = df.right = of.right = cf.right = mRestrictedScreenLeft
3607                             + mRestrictedScreenWidth;
3608                     pf.bottom = df.bottom = of.bottom = cf.bottom = mRestrictedScreenTop
3609                             + mRestrictedScreenHeight;
3610                 } else if (attrs.type == TYPE_TOAST || attrs.type == TYPE_SYSTEM_ALERT
3611                         || attrs.type == TYPE_VOLUME_OVERLAY) {
3612                     // These dialogs are stable to interim decor changes.
3613                     pf.left = df.left = of.left = cf.left = mStableLeft;
3614                     pf.top = df.top = of.top = cf.top = mStableTop;
3615                     pf.right = df.right = of.right = cf.right = mStableRight;
3616                     pf.bottom = df.bottom = of.bottom = cf.bottom = mStableBottom;
3617                 } else {
3618                     pf.left = mContentLeft;
3619                     pf.top = mContentTop;
3620                     pf.right = mContentRight;
3621                     pf.bottom = mContentBottom;
3622                     if (win.isVoiceInteraction()) {
3623                         df.left = of.left = cf.left = mVoiceContentLeft;
3624                         df.top = of.top = cf.top = mVoiceContentTop;
3625                         df.right = of.right = cf.right = mVoiceContentRight;
3626                         df.bottom = of.bottom = cf.bottom = mVoiceContentBottom;
3627                     } else if (adjust != SOFT_INPUT_ADJUST_RESIZE) {
3628                         df.left = of.left = cf.left = mDockLeft;
3629                         df.top = of.top = cf.top = mDockTop;
3630                         df.right = of.right = cf.right = mDockRight;
3631                         df.bottom = of.bottom = cf.bottom = mDockBottom;
3632                     } else {
3633                         df.left = of.left = cf.left = mContentLeft;
3634                         df.top = of.top = cf.top = mContentTop;
3635                         df.right = of.right = cf.right = mContentRight;
3636                         df.bottom = of.bottom = cf.bottom = mContentBottom;
3637                     }
3638                     if (adjust != SOFT_INPUT_ADJUST_NOTHING) {
3639                         vf.left = mCurLeft;
3640                         vf.top = mCurTop;
3641                         vf.right = mCurRight;
3642                         vf.bottom = mCurBottom;
3643                     } else {
3644                         vf.set(cf);
3645                     }
3646                 }
3647             }
3648         }
3649
3650         // TYPE_SYSTEM_ERROR is above the NavigationBar so it can't be allowed to extend over it.
3651         if ((fl & FLAG_LAYOUT_NO_LIMITS) != 0 && attrs.type != TYPE_SYSTEM_ERROR) {
3652             df.left = df.top = -10000;
3653             df.right = df.bottom = 10000;
3654             if (attrs.type != TYPE_WALLPAPER) {
3655                 of.left = of.top = cf.left = cf.top = vf.left = vf.top = -10000;
3656                 of.right = of.bottom = cf.right = cf.bottom = vf.right = vf.bottom = 10000;
3657             }
3658         }
3659
3660         if (DEBUG_LAYOUT) Slog.v(TAG, "Compute frame " + attrs.getTitle()
3661                 + ": sim=#" + Integer.toHexString(sim)
3662                 + " attach=" + attached + " type=" + attrs.type
3663                 + String.format(" flags=0x%08x", fl)
3664                 + " pf=" + pf.toShortString() + " df=" + df.toShortString()
3665                 + " of=" + of.toShortString()
3666                 + " cf=" + cf.toShortString() + " vf=" + vf.toShortString()
3667                 + " dcf=" + dcf.toShortString()
3668                 + " sf=" + sf.toShortString());
3669
3670         win.computeFrameLw(pf, df, of, cf, vf, dcf, sf);
3671
3672         // Dock windows carve out the bottom of the screen, so normal windows
3673         // can't appear underneath them.
3674         if (attrs.type == TYPE_INPUT_METHOD && win.isVisibleOrBehindKeyguardLw()
3675                 && !win.getGivenInsetsPendingLw()) {
3676             setLastInputMethodWindowLw(null, null);
3677             offsetInputMethodWindowLw(win);
3678         }
3679         if (attrs.type == TYPE_VOICE_INTERACTION && win.isVisibleOrBehindKeyguardLw()
3680                 && !win.getGivenInsetsPendingLw()) {
3681             offsetVoiceInputWindowLw(win);
3682         }
3683     }
3684
3685     private void offsetInputMethodWindowLw(WindowState win) {
3686         int top = win.getContentFrameLw().top;
3687         top += win.getGivenContentInsetsLw().top;
3688         if (mContentBottom > top) {
3689             mContentBottom = top;
3690         }
3691         if (mVoiceContentBottom > top) {
3692             mVoiceContentBottom = top;
3693         }
3694         top = win.getVisibleFrameLw().top;
3695         top += win.getGivenVisibleInsetsLw().top;
3696         if (mCurBottom > top) {
3697             mCurBottom = top;
3698         }
3699         if (DEBUG_LAYOUT) Slog.v(TAG, "Input method: mDockBottom="
3700                 + mDockBottom + " mContentBottom="
3701                 + mContentBottom + " mCurBottom=" + mCurBottom);
3702     }
3703
3704     private void offsetVoiceInputWindowLw(WindowState win) {
3705         final int gravity = win.getAttrs().gravity;
3706         switch (gravity&((Gravity.AXIS_PULL_BEFORE|Gravity.AXIS_PULL_AFTER)
3707                 << Gravity.AXIS_X_SHIFT)) {
3708             case Gravity.AXIS_PULL_BEFORE<<Gravity.AXIS_X_SHIFT: {
3709                 int right = win.getContentFrameLw().right - win.getGivenContentInsetsLw().right;
3710                 if (mVoiceContentLeft < right) {
3711                     mVoiceContentLeft = right;
3712                 }
3713             } break;
3714             case Gravity.AXIS_PULL_AFTER<<Gravity.AXIS_X_SHIFT: {
3715                 int left = win.getContentFrameLw().left - win.getGivenContentInsetsLw().left;
3716                 if (mVoiceContentRight < left) {
3717                     mVoiceContentRight = left;
3718                 }
3719             } break;
3720         }
3721         switch (gravity&((Gravity.AXIS_PULL_BEFORE|Gravity.AXIS_PULL_AFTER)
3722                 << Gravity.AXIS_Y_SHIFT)) {
3723             case Gravity.AXIS_PULL_BEFORE<<Gravity.AXIS_Y_SHIFT: {
3724                 int bottom = win.getContentFrameLw().bottom - win.getGivenContentInsetsLw().bottom;
3725                 if (mVoiceContentTop < bottom) {
3726                     mVoiceContentTop = bottom;
3727                 }
3728             } break;
3729             case Gravity.AXIS_PULL_AFTER<<Gravity.AXIS_Y_SHIFT: {
3730                 int top = win.getContentFrameLw().top - win.getGivenContentInsetsLw().top;
3731                 if (mVoiceContentBottom < top) {
3732                     mVoiceContentBottom = top;
3733                 }
3734             } break;
3735         }
3736     }
3737
3738     /** {@inheritDoc} */
3739     @Override
3740     public void finishLayoutLw() {
3741         return;
3742     }
3743
3744     /** {@inheritDoc} */
3745     @Override
3746     public void beginPostLayoutPolicyLw(int displayWidth, int displayHeight) {
3747         mTopFullscreenOpaqueWindowState = null;
3748         mAppsToBeHidden.clear();
3749         mAppsThatDismissKeyguard.clear();
3750         mForceStatusBar = false;
3751         mForceStatusBarFromKeyguard = false;
3752         mForcingShowNavBar = false;
3753         mForcingShowNavBarLayer = -1;
3754
3755         mHideLockScreen = false;
3756         mAllowLockscreenWhenOn = false;
3757         mDismissKeyguard = DISMISS_KEYGUARD_NONE;
3758         mShowingLockscreen = false;
3759         mShowingDream = false;
3760         mWinShowWhenLocked = null;
3761     }
3762
3763     /** {@inheritDoc} */
3764     @Override
3765     public void applyPostLayoutPolicyLw(WindowState win, WindowManager.LayoutParams attrs) {
3766         if (DEBUG_LAYOUT) Slog.i(TAG, "Win " + win + ": isVisibleOrBehindKeyguardLw="
3767                 + win.isVisibleOrBehindKeyguardLw());
3768         final int fl = PolicyControl.getWindowFlags(win, attrs);
3769         if (mTopFullscreenOpaqueWindowState == null
3770                 && win.isVisibleLw() && attrs.type == TYPE_INPUT_METHOD) {
3771             mForcingShowNavBar = true;
3772             mForcingShowNavBarLayer = win.getSurfaceLayer();
3773         }
3774         if (attrs.type == TYPE_STATUS_BAR && (attrs.privateFlags & PRIVATE_FLAG_KEYGUARD) != 0) {
3775             mForceStatusBarFromKeyguard = true;
3776         }
3777         if (mTopFullscreenOpaqueWindowState == null &&
3778                 win.isVisibleOrBehindKeyguardLw() && !win.isGoneForLayoutLw()) {
3779             if ((fl & FLAG_FORCE_NOT_FULLSCREEN) != 0) {
3780                 if ((attrs.privateFlags & PRIVATE_FLAG_KEYGUARD) != 0) {
3781                     mForceStatusBarFromKeyguard = true;
3782                 } else {
3783                     mForceStatusBar = true;
3784                 }
3785             }
3786             if ((attrs.privateFlags & PRIVATE_FLAG_KEYGUARD) != 0) {
3787                 mShowingLockscreen = true;
3788             }
3789             boolean appWindow = attrs.type >= FIRST_APPLICATION_WINDOW
3790                     && attrs.type < FIRST_SYSTEM_WINDOW;
3791             if (attrs.type == TYPE_DREAM) {
3792                 // If the lockscreen was showing when the dream started then wait
3793                 // for the dream to draw before hiding the lockscreen.
3794                 if (!mDreamingLockscreen
3795                         || (win.isVisibleLw() && win.hasDrawnLw())) {
3796                     mShowingDream = true;
3797                     appWindow = true;
3798                 }
3799             }
3800
3801             final boolean showWhenLocked = (fl & FLAG_SHOW_WHEN_LOCKED) != 0;
3802             final boolean dismissKeyguard = (fl & FLAG_DISMISS_KEYGUARD) != 0;
3803             final boolean secureKeyguard = isKeyguardSecure();
3804             if (appWindow) {
3805                 final IApplicationToken appToken = win.getAppToken();
3806                 if (showWhenLocked) {
3807                     // Remove any previous windows with the same appToken.
3808                     mAppsToBeHidden.remove(appToken);
3809                     mAppsThatDismissKeyguard.remove(appToken);
3810                     if (mAppsToBeHidden.isEmpty() && isKeyguardSecureIncludingHidden()) {
3811                         mWinShowWhenLocked = win;
3812                         mHideLockScreen = true;
3813                         mForceStatusBarFromKeyguard = false;
3814                     }
3815                 } else if (dismissKeyguard) {
3816                     if (secureKeyguard) {
3817                         mAppsToBeHidden.add(appToken);
3818                     } else {
3819                         mAppsToBeHidden.remove(appToken);
3820                     }
3821                     mAppsThatDismissKeyguard.add(appToken);
3822                 } else {
3823                     mAppsToBeHidden.add(appToken);
3824                 }
3825                 if (attrs.x == 0 && attrs.y == 0
3826                         && attrs.width == WindowManager.LayoutParams.MATCH_PARENT
3827                         && attrs.height == WindowManager.LayoutParams.MATCH_PARENT) {
3828                     if (DEBUG_LAYOUT) Slog.v(TAG, "Fullscreen window: " + win);
3829                     mTopFullscreenOpaqueWindowState = win;
3830                     if (!mAppsThatDismissKeyguard.isEmpty() &&
3831                             mDismissKeyguard == DISMISS_KEYGUARD_NONE) {
3832                         if (DEBUG_LAYOUT) Slog.v(TAG,
3833                                 "Setting mDismissKeyguard true by win " + win);
3834                         mDismissKeyguard = mWinDismissingKeyguard == win ?
3835                                 DISMISS_KEYGUARD_CONTINUE : DISMISS_KEYGUARD_START;
3836                         mWinDismissingKeyguard = win;
3837                         mForceStatusBarFromKeyguard = mShowingLockscreen && secureKeyguard;
3838                     } else if (mAppsToBeHidden.isEmpty() && showWhenLocked) {
3839                         if (DEBUG_LAYOUT) Slog.v(TAG,
3840                                 "Setting mHideLockScreen to true by win " + win);
3841                         mHideLockScreen = true;
3842                         mForceStatusBarFromKeyguard = false;
3843                     }
3844                     if ((fl & FLAG_ALLOW_LOCK_WHILE_SCREEN_ON) != 0) {
3845                         mAllowLockscreenWhenOn = true;
3846                     }
3847                 }
3848
3849                 if (mWinShowWhenLocked != null &&
3850                         mWinShowWhenLocked.getAppToken() != win.getAppToken()) {
3851                     win.hideLw(false);
3852                 }
3853             }
3854         }
3855     }
3856
3857     /** {@inheritDoc} */
3858     @Override
3859     public int finishPostLayoutPolicyLw() {
3860         if (mWinShowWhenLocked != null &&
3861                 mWinShowWhenLocked != mTopFullscreenOpaqueWindowState) {
3862             // A dialog is dismissing the keyguard. Put the wallpaper behind it and hide the
3863             // fullscreen window.
3864             // TODO: Make sure FLAG_SHOW_WALLPAPER is restored when dialog is dismissed. Or not.
3865             mWinShowWhenLocked.getAttrs().flags |= FLAG_SHOW_WALLPAPER;
3866             mTopFullscreenOpaqueWindowState.hideLw(false);
3867             mTopFullscreenOpaqueWindowState = mWinShowWhenLocked;
3868         }
3869
3870         int changes = 0;
3871         boolean topIsFullscreen = false;
3872
3873         final WindowManager.LayoutParams lp = (mTopFullscreenOpaqueWindowState != null)
3874                 ? mTopFullscreenOpaqueWindowState.getAttrs()
3875                 : null;
3876
3877         // If we are not currently showing a dream then remember the current
3878         // lockscreen state.  We will use this to determine whether the dream
3879         // started while the lockscreen was showing and remember this state
3880         // while the dream is showing.
3881         if (!mShowingDream) {
3882             mDreamingLockscreen = mShowingLockscreen;
3883         }
3884
3885         if (mStatusBar != null) {
3886             if (DEBUG_LAYOUT) Slog.i(TAG, "force=" + mForceStatusBar
3887                     + " forcefkg=" + mForceStatusBarFromKeyguard
3888                     + " top=" + mTopFullscreenOpaqueWindowState);
3889             if (mForceStatusBar || mForceStatusBarFromKeyguard) {
3890                 if (DEBUG_LAYOUT) Slog.v(TAG, "Showing status bar: forced");
3891                 if (mStatusBarController.setBarShowingLw(true)) {
3892                     changes |= FINISH_LAYOUT_REDO_LAYOUT;
3893                 }
3894                 // Maintain fullscreen layout until incoming animation is complete.
3895                 topIsFullscreen = mTopIsFullscreen && mStatusBar.isAnimatingLw();
3896                 // Transient status bar on the lockscreen is not allowed
3897                 if (mForceStatusBarFromKeyguard && mStatusBarController.isTransientShowing()) {
3898                     mStatusBarController.updateVisibilityLw(false /*transientAllowed*/,
3899                             mLastSystemUiFlags, mLastSystemUiFlags);
3900                 }
3901             } else if (mTopFullscreenOpaqueWindowState != null) {
3902                 final int fl = PolicyControl.getWindowFlags(null, lp);
3903                 if (localLOGV) {
3904                     Slog.d(TAG, "frame: " + mTopFullscreenOpaqueWindowState.getFrameLw()
3905                             + " shown frame: " + mTopFullscreenOpaqueWindowState.getShownFrameLw());
3906                     Slog.d(TAG, "attr: " + mTopFullscreenOpaqueWindowState.getAttrs()
3907                             + " lp.flags=0x" + Integer.toHexString(fl));
3908                 }
3909                 topIsFullscreen = (fl & WindowManager.LayoutParams.FLAG_FULLSCREEN) != 0
3910                         || (mLastSystemUiFlags & View.SYSTEM_UI_FLAG_FULLSCREEN) != 0;
3911                 // The subtle difference between the window for mTopFullscreenOpaqueWindowState
3912                 // and mTopIsFullscreen is that that mTopIsFullscreen is set only if the window
3913                 // has the FLAG_FULLSCREEN set.  Not sure if there is another way that to be the
3914                 // case though.
3915                 if (mStatusBarController.isTransientShowing()) {
3916                     if (mStatusBarController.setBarShowingLw(true)) {
3917                         changes |= FINISH_LAYOUT_REDO_LAYOUT;
3918                     }
3919                 } else if (topIsFullscreen) {
3920                     if (DEBUG_LAYOUT) Slog.v(TAG, "** HIDING status bar");
3921                     if (mStatusBarController.setBarShowingLw(false)) {
3922                         changes |= FINISH_LAYOUT_REDO_LAYOUT;
3923                     } else {
3924                         if (DEBUG_LAYOUT) Slog.v(TAG, "Status bar already hiding");
3925                     }
3926                 } else {
3927                     if (DEBUG_LAYOUT) Slog.v(TAG, "** SHOWING status bar: top is not fullscreen");
3928                     if (mStatusBarController.setBarShowingLw(true)) {
3929                         changes |= FINISH_LAYOUT_REDO_LAYOUT;
3930                     }
3931                 }
3932             }
3933         }
3934
3935         if (mTopIsFullscreen != topIsFullscreen) {
3936             if (!topIsFullscreen) {
3937                 // Force another layout when status bar becomes fully shown.
3938                 changes |= FINISH_LAYOUT_REDO_LAYOUT;
3939             }
3940             mTopIsFullscreen = topIsFullscreen;
3941         }
3942
3943         // Hide the key guard if a visible window explicitly specifies that it wants to be
3944         // displayed when the screen is locked.
3945         if (mKeyguardDelegate != null && mStatusBar != null) {
3946             if (localLOGV) Slog.v(TAG, "finishPostLayoutPolicyLw: mHideKeyguard="
3947                     + mHideLockScreen);
3948             if (mDismissKeyguard != DISMISS_KEYGUARD_NONE && !isKeyguardSecure()) {
3949                 mKeyguardHidden = true;
3950                 if (processKeyguardSetHiddenResultLw(mKeyguardDelegate.setOccluded(true))) {
3951                     changes |= FINISH_LAYOUT_REDO_LAYOUT
3952                             | FINISH_LAYOUT_REDO_CONFIG
3953                             | FINISH_LAYOUT_REDO_WALLPAPER;
3954                 }
3955                 if (mKeyguardDelegate.isShowing()) {
3956                     mHandler.post(new Runnable() {
3957                         @Override
3958                         public void run() {
3959                             mKeyguardDelegate.keyguardDone(false, false);
3960                         }
3961                     });
3962                 }
3963             } else if (mHideLockScreen) {
3964                 mKeyguardHidden = true;
3965                 if (processKeyguardSetHiddenResultLw(mKeyguardDelegate.setOccluded(true))) {
3966                     changes |= FINISH_LAYOUT_REDO_LAYOUT
3967                             | FINISH_LAYOUT_REDO_CONFIG
3968                             | FINISH_LAYOUT_REDO_WALLPAPER;
3969                 }
3970             } else if (mDismissKeyguard != DISMISS_KEYGUARD_NONE) {
3971                 // This is the case of keyguard isSecure() and not mHideLockScreen.
3972                 if (mDismissKeyguard == DISMISS_KEYGUARD_START) {
3973                     // Only launch the next keyguard unlock window once per window.
3974                     mKeyguardHidden = false;
3975                     if (processKeyguardSetHiddenResultLw(mKeyguardDelegate.setOccluded(false))) {
3976                         changes |= FINISH_LAYOUT_REDO_LAYOUT
3977                                 | FINISH_LAYOUT_REDO_CONFIG
3978                                 | FINISH_LAYOUT_REDO_WALLPAPER;
3979                     }
3980                     mHandler.post(new Runnable() {
3981                         @Override
3982                         public void run() {
3983                             mKeyguardDelegate.dismiss();
3984                         }
3985                     });
3986                 }
3987             } else {
3988                 mWinDismissingKeyguard = null;
3989                 mKeyguardHidden = false;
3990                 if (processKeyguardSetHiddenResultLw(mKeyguardDelegate.setOccluded(false))) {
3991                     changes |= FINISH_LAYOUT_REDO_LAYOUT
3992                             | FINISH_LAYOUT_REDO_CONFIG
3993                             | FINISH_LAYOUT_REDO_WALLPAPER;
3994                 }
3995             }
3996         }
3997
3998         if ((updateSystemUiVisibilityLw()&SYSTEM_UI_CHANGING_LAYOUT) != 0) {
3999             // If the navigation bar has been hidden or shown, we need to do another
4000             // layout pass to update that window.
4001             changes |= FINISH_LAYOUT_REDO_LAYOUT;
4002         }
4003
4004         // update since mAllowLockscreenWhenOn might have changed
4005         updateLockScreenTimeout();
4006         return changes;
4007     }
4008
4009     /**
4010      * Processes the result code of {@link IKeyguardService#setOccluded}. This is needed because we
4011      * immediately need to put the wallpaper directly behind the Keyguard when a window with flag
4012      * {@link android.view.WindowManager.LayoutParams#FLAG_SHOW_WHEN_LOCKED} gets dismissed. If we
4013      * would wait for Keyguard to change the flags, that would be running asynchronously and thus be
4014      * too late so the user might see the window behind.
4015      *
4016      * @param setHiddenResult The result code from {@link IKeyguardService#setOccluded}.
4017      * @return Whether the flags have changed and we have to redo the layout.
4018      */
4019     private boolean processKeyguardSetHiddenResultLw(int setHiddenResult) {
4020         if (setHiddenResult
4021                 == IKeyguardServiceConstants.KEYGUARD_SERVICE_SET_OCCLUDED_RESULT_SET_FLAGS) {
4022             mStatusBar.getAttrs().privateFlags |= PRIVATE_FLAG_KEYGUARD;
4023             mStatusBar.getAttrs().flags |= FLAG_SHOW_WALLPAPER;
4024             return true;
4025         } else if (setHiddenResult
4026                 == IKeyguardServiceConstants.KEYGUARD_SERVICE_SET_OCCLUDED_RESULT_UNSET_FLAGS) {
4027             mStatusBar.getAttrs().privateFlags &= ~PRIVATE_FLAG_KEYGUARD;
4028             mStatusBar.getAttrs().flags &= ~FLAG_SHOW_WALLPAPER;
4029             return true;
4030         } else {
4031             return false;
4032         }
4033     }
4034
4035     private boolean isStatusBarKeyguard() {
4036         return mStatusBar != null
4037                 && (mStatusBar.getAttrs().privateFlags & PRIVATE_FLAG_KEYGUARD) != 0;
4038     }
4039
4040     @Override
4041     public boolean allowAppAnimationsLw() {
4042         if (isStatusBarKeyguard() || mShowingDream) {
4043             // If keyguard or dreams is currently visible, no reason to animate behind it.
4044             return false;
4045         }
4046         return true;
4047     }
4048
4049     @Override
4050     public int focusChangedLw(WindowState lastFocus, WindowState newFocus) {
4051         mFocusedWindow = newFocus;
4052         if ((updateSystemUiVisibilityLw()&SYSTEM_UI_CHANGING_LAYOUT) != 0) {
4053             // If the navigation bar has been hidden or shown, we need to do another
4054             // layout pass to update that window.
4055             return FINISH_LAYOUT_REDO_LAYOUT;
4056         }
4057         return 0;
4058     }
4059
4060     /** {@inheritDoc} */
4061     @Override
4062     public void notifyLidSwitchChanged(long whenNanos, boolean lidOpen) {
4063         // lid changed state
4064         final int newLidState = lidOpen ? LID_OPEN : LID_CLOSED;
4065         if (newLidState == mLidState) {
4066             return;
4067         }
4068
4069         mLidState = newLidState;
4070         applyLidSwitchState();
4071         updateRotation(true);
4072
4073         if (lidOpen) {
4074             mPowerManager.wakeUp(SystemClock.uptimeMillis());
4075         } else if (!mLidControlsSleep) {
4076             mPowerManager.userActivity(SystemClock.uptimeMillis(), false);
4077         }
4078     }
4079
4080     @Override
4081     public void notifyCameraLensCoverSwitchChanged(long whenNanos, boolean lensCovered) {
4082         int lensCoverState = lensCovered ? CAMERA_LENS_COVERED : CAMERA_LENS_UNCOVERED;
4083         if (mCameraLensCoverState == lensCoverState) {
4084             return;
4085         }
4086         if (mCameraLensCoverState == CAMERA_LENS_COVERED &&
4087                 lensCoverState == CAMERA_LENS_UNCOVERED) {
4088             Intent intent;
4089             final boolean keyguardActive = mKeyguardDelegate == null ? false :
4090                     mKeyguardDelegate.isShowing();
4091             if (keyguardActive) {
4092                 intent = new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA_SECURE);
4093             } else {
4094                 intent = new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA);
4095             }
4096             mPowerManager.wakeUp(whenNanos / 1000000);
4097             mContext.startActivityAsUser(intent, UserHandle.CURRENT_OR_SELF);
4098         }
4099         mCameraLensCoverState = lensCoverState;
4100     }
4101
4102     void setHdmiPlugged(boolean plugged) {
4103         if (mHdmiPlugged != plugged) {
4104             mHdmiPlugged = plugged;
4105             updateRotation(true, true);
4106             Intent intent = new Intent(ACTION_HDMI_PLUGGED);
4107             intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
4108             intent.putExtra(EXTRA_HDMI_PLUGGED_STATE, plugged);
4109             mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL);
4110         }
4111     }
4112
4113     void initializeHdmiState() {
4114         boolean plugged = false;
4115         // watch for HDMI plug messages if the hdmi switch exists
4116         if (new File("/sys/devices/virtual/switch/hdmi/state").exists()) {
4117             mHDMIObserver.startObserving("DEVPATH=/devices/virtual/switch/hdmi");
4118
4119             final String filename = "/sys/class/switch/hdmi/state";
4120             FileReader reader = null;
4121             try {
4122                 reader = new FileReader(filename);
4123                 char[] buf = new char[15];
4124                 int n = reader.read(buf);
4125                 if (n > 1) {
4126                     plugged = 0 != Integer.parseInt(new String(buf, 0, n-1));
4127                 }
4128             } catch (IOException ex) {
4129                 Slog.w(TAG, "Couldn't read hdmi state from " + filename + ": " + ex);
4130             } catch (NumberFormatException ex) {
4131                 Slog.w(TAG, "Couldn't read hdmi state from " + filename + ": " + ex);
4132             } finally {
4133                 if (reader != null) {
4134                     try {
4135                         reader.close();
4136                     } catch (IOException ex) {
4137                     }
4138                 }
4139             }
4140         }
4141         // This dance forces the code in setHdmiPlugged to run.
4142         // Always do this so the sticky intent is stuck (to false) if there is no hdmi.
4143         mHdmiPlugged = !plugged;
4144         setHdmiPlugged(!mHdmiPlugged);
4145     }
4146
4147     final Object mScreenshotLock = new Object();
4148     ServiceConnection mScreenshotConnection = null;
4149
4150     final Runnable mScreenshotTimeout = new Runnable() {
4151         @Override public void run() {
4152             synchronized (mScreenshotLock) {
4153                 if (mScreenshotConnection != null) {
4154                     mContext.unbindService(mScreenshotConnection);
4155                     mScreenshotConnection = null;
4156                 }
4157             }
4158         }
4159     };
4160
4161     // Assume this is called from the Handler thread.
4162     private void takeScreenshot() {
4163         synchronized (mScreenshotLock) {
4164             if (mScreenshotConnection != null) {
4165                 return;
4166             }
4167             ComponentName cn = new ComponentName("com.android.systemui",
4168                     "com.android.systemui.screenshot.TakeScreenshotService");
4169             Intent intent = new Intent();
4170             intent.setComponent(cn);
4171             ServiceConnection conn = new ServiceConnection() {
4172                 @Override
4173                 public void onServiceConnected(ComponentName name, IBinder service) {
4174                     synchronized (mScreenshotLock) {
4175                         if (mScreenshotConnection != this) {
4176                             return;
4177                         }
4178                         Messenger messenger = new Messenger(service);
4179                         Message msg = Message.obtain(null, 1);
4180                         final ServiceConnection myConn = this;
4181                         Handler h = new Handler(mHandler.getLooper()) {
4182                             @Override
4183                             public void handleMessage(Message msg) {
4184                                 synchronized (mScreenshotLock) {
4185                                     if (mScreenshotConnection == myConn) {
4186                                         mContext.unbindService(mScreenshotConnection);
4187                                         mScreenshotConnection = null;
4188                                         mHandler.removeCallbacks(mScreenshotTimeout);
4189                                     }
4190                                 }
4191                             }
4192                         };
4193                         msg.replyTo = new Messenger(h);
4194                         msg.arg1 = msg.arg2 = 0;
4195                         if (mStatusBar != null && mStatusBar.isVisibleLw())
4196                             msg.arg1 = 1;
4197                         if (mNavigationBar != null && mNavigationBar.isVisibleLw())
4198                             msg.arg2 = 1;
4199                         try {
4200                             messenger.send(msg);
4201                         } catch (RemoteException e) {
4202                         }
4203                     }
4204                 }
4205                 @Override
4206                 public void onServiceDisconnected(ComponentName name) {}
4207             };
4208             if (mContext.bindServiceAsUser(
4209                     intent, conn, Context.BIND_AUTO_CREATE, UserHandle.CURRENT)) {
4210                 mScreenshotConnection = conn;
4211                 mHandler.postDelayed(mScreenshotTimeout, 10000);
4212             }
4213         }
4214     }
4215
4216     /** {@inheritDoc} */
4217     @Override
4218     public int interceptKeyBeforeQueueing(KeyEvent event, int policyFlags) {
4219         if (!mSystemBooted) {
4220             // If we have not yet booted, don't let key events do anything.
4221             return 0;
4222         }
4223
4224         final boolean interactive = (policyFlags & FLAG_INTERACTIVE) != 0;
4225         final boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
4226         final boolean canceled = event.isCanceled();
4227         final int keyCode = event.getKeyCode();
4228
4229         final boolean isInjected = (policyFlags & WindowManagerPolicy.FLAG_INJECTED) != 0;
4230
4231         // If screen is off then we treat the case where the keyguard is open but hidden
4232         // the same as if it were open and in front.
4233         // This will prevent any keys other than the power button from waking the screen
4234         // when the keyguard is hidden by another activity.
4235         final boolean keyguardActive = (mKeyguardDelegate == null ? false :
4236                                             (interactive ?
4237                                                 mKeyguardDelegate.isShowingAndNotOccluded() :
4238                                                 mKeyguardDelegate.isShowing()));
4239
4240         if (DEBUG_INPUT) {
4241             Log.d(TAG, "interceptKeyTq keycode=" + keyCode
4242                     + " interactive=" + interactive + " keyguardActive=" + keyguardActive
4243                     + " policyFlags=" + Integer.toHexString(policyFlags));
4244         }
4245
4246         // Basic policy based on interactive state.
4247         int result;
4248         boolean isWakeKey = (policyFlags & WindowManagerPolicy.FLAG_WAKE) != 0
4249                 || event.isWakeKey();
4250         if (interactive || (isInjected && !isWakeKey)) {
4251             // When the device is interactive or the key is injected pass the
4252             // key to the application.
4253             result = ACTION_PASS_TO_USER;
4254             isWakeKey = false;
4255         } else if (!interactive && shouldDispatchInputWhenNonInteractive()) {
4256             // If we're currently dozing with the screen on and the keyguard showing, pass the key
4257             // to the application but preserve its wake key status to make sure we still move
4258             // from dozing to fully interactive if we would normally go from off to fully
4259             // interactive.
4260             result = ACTION_PASS_TO_USER;
4261         } else {
4262             // When the screen is off and the key is not injected, determine whether
4263             // to wake the device but don't pass the key to the application.
4264             result = 0;
4265             if (isWakeKey && (!down || !isWakeKeyWhenScreenOff(keyCode))) {
4266                 isWakeKey = false;
4267             }
4268         }
4269
4270         // If the key would be handled globally, just return the result, don't worry about special
4271         // key processing.
4272         if (mGlobalKeyManager.shouldHandleGlobalKey(keyCode, event)) {
4273             if (isWakeKey) {
4274                 mPowerManager.wakeUp(event.getEventTime());
4275             }
4276             return result;
4277         }
4278
4279         boolean useHapticFeedback = down
4280                 && (policyFlags & WindowManagerPolicy.FLAG_VIRTUAL) != 0
4281                 && event.getRepeatCount() == 0;
4282
4283         // Handle special keys.
4284         switch (keyCode) {
4285             case KeyEvent.KEYCODE_VOLUME_DOWN:
4286             case KeyEvent.KEYCODE_VOLUME_UP:
4287             case KeyEvent.KEYCODE_VOLUME_MUTE: {
4288                 if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
4289                     if (down) {
4290                         if (interactive && !mVolumeDownKeyTriggered
4291                                 && (event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
4292                             mVolumeDownKeyTriggered = true;
4293                             mVolumeDownKeyTime = event.getDownTime();
4294                             mVolumeDownKeyConsumedByScreenshotChord = false;
4295                             cancelPendingPowerKeyAction();
4296                             interceptScreenshotChord();
4297                         }
4298                     } else {
4299                         mVolumeDownKeyTriggered = false;
4300                         cancelPendingScreenshotChordAction();
4301                     }
4302                 } else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
4303                     if (down) {
4304                         if (interactive && !mVolumeUpKeyTriggered
4305                                 && (event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
4306                             mVolumeUpKeyTriggered = true;
4307                             cancelPendingPowerKeyAction();
4308                             cancelPendingScreenshotChordAction();
4309                         }
4310                     } else {
4311                         mVolumeUpKeyTriggered = false;
4312                         cancelPendingScreenshotChordAction();
4313                     }
4314                 }
4315                 if (down) {
4316                     TelecomManager telecomManager = getTelecommService();
4317                     if (telecomManager != null) {
4318                         if (telecomManager.isRinging()) {
4319                             // If an incoming call is ringing, either VOLUME key means
4320                             // "silence ringer".  We handle these keys here, rather than
4321                             // in the InCallScreen, to make sure we'll respond to them
4322                             // even if the InCallScreen hasn't come to the foreground yet.
4323                             // Look for the DOWN event here, to agree with the "fallback"
4324                             // behavior in the InCallScreen.
4325                             Log.i(TAG, "interceptKeyBeforeQueueing:"
4326                                   + " VOLUME key-down while ringing: Silence ringer!");
4327
4328                             // Silence the ringer.  (It's safe to call this
4329                             // even if the ringer has already been silenced.)
4330                             telecomManager.silenceRinger();
4331
4332                             // And *don't* pass this key thru to the current activity
4333                             // (which is probably the InCallScreen.)
4334                             result &= ~ACTION_PASS_TO_USER;
4335                             break;
4336                         }
4337                         if (telecomManager.isInCall()
4338                                 && (result & ACTION_PASS_TO_USER) == 0) {
4339                             // If we are in call but we decided not to pass the key to
4340                             // the application, just pass it to the session service.
4341
4342                             MediaSessionLegacyHelper.getHelper(mContext)
4343                                     .sendVolumeKeyEvent(event, false);
4344                             break;
4345                         }
4346                     }
4347
4348                     if ((result & ACTION_PASS_TO_USER) == 0) {
4349                         // If we aren't passing to the user and no one else
4350                         // handled it send it to the session manager to figure
4351                         // out.
4352                         MediaSessionLegacyHelper.getHelper(mContext)
4353                                 .sendVolumeKeyEvent(event, true);
4354                         break;
4355                     }
4356                 }
4357                 break;
4358             }
4359
4360             case KeyEvent.KEYCODE_ENDCALL: {
4361                 result &= ~ACTION_PASS_TO_USER;
4362                 if (down) {
4363                     TelecomManager telecomManager = getTelecommService();
4364                     boolean hungUp = false;
4365                     if (telecomManager != null) {
4366                         hungUp = telecomManager.endCall();
4367                     }
4368                     interceptPowerKeyDown(!interactive || hungUp);
4369                 } else {
4370                     if (interceptPowerKeyUp(canceled)) {
4371                         if ((mEndcallBehavior
4372                                 & Settings.System.END_BUTTON_BEHAVIOR_HOME) != 0) {
4373                             if (goHome()) {
4374                                 break;
4375                             }
4376                         }
4377                         if ((mEndcallBehavior
4378                                 & Settings.System.END_BUTTON_BEHAVIOR_SLEEP) != 0) {
4379                             mPowerManager.goToSleep(event.getEventTime(),
4380                                     PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON, 0);
4381                             isWakeKey = false;
4382                         }
4383                     }
4384                 }
4385                 break;
4386             }
4387
4388             case KeyEvent.KEYCODE_POWER: {
4389                 result &= ~ACTION_PASS_TO_USER;
4390                 if (down) {
4391                     boolean panic = mImmersiveModeConfirmation.onPowerKeyDown(interactive,
4392                             event.getDownTime(), isImmersiveMode(mLastSystemUiFlags));
4393                     if (panic) {
4394                         mHandler.post(mRequestTransientNav);
4395                     }
4396                     if (interactive && !mPowerKeyTriggered
4397                             && (event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
4398                         mPowerKeyTriggered = true;
4399                         mPowerKeyTime = event.getDownTime();
4400                         interceptScreenshotChord();
4401                     }
4402
4403                     TelecomManager telecomManager = getTelecommService();
4404                     boolean hungUp = false;
4405                     if (telecomManager != null) {
4406                         if (telecomManager.isRinging()) {
4407                             // Pressing Power while there's a ringing incoming
4408                             // call should silence the ringer.
4409                             telecomManager.silenceRinger();
4410                         } else if ((mIncallPowerBehavior
4411                                 & Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR_HANGUP) != 0
4412                                 && telecomManager.isInCall() && interactive) {
4413                             // Otherwise, if "Power button ends call" is enabled,
4414                             // the Power button will hang up any current active call.
4415                             hungUp = telecomManager.endCall();
4416                         }
4417                     }
4418                     interceptPowerKeyDown(!interactive || hungUp
4419                             || mVolumeDownKeyTriggered || mVolumeUpKeyTriggered);
4420                 } else {
4421                     mPowerKeyTriggered = false;
4422                     cancelPendingScreenshotChordAction();
4423                     if (interceptPowerKeyUp(canceled || mPendingPowerKeyUpCanceled)) {
4424                         if (mScreenOnEarly && !mScreenOnFully) {
4425                             Slog.i(TAG, "Suppressed redundant power key press while "
4426                                     + "already in the process of turning the screen on.");
4427                         } else {
4428                             powerShortPress(event.getEventTime());
4429                         }
4430                         isWakeKey = false;
4431                     }
4432                     mPendingPowerKeyUpCanceled = false;
4433                 }
4434                 break;
4435             }
4436
4437             case KeyEvent.KEYCODE_SLEEP: {
4438                 result &= ~ACTION_PASS_TO_USER;
4439                 if (!mPowerManager.isInteractive()) {
4440                     useHapticFeedback = false; // suppress feedback if already non-interactive
4441                 }
4442                 mPowerManager.goToSleep(event.getEventTime(),
4443                         PowerManager.GO_TO_SLEEP_REASON_POWER_BUTTON, 0);
4444                 isWakeKey = false;
4445                 break;
4446             }
4447
4448             case KeyEvent.KEYCODE_WAKEUP: {
4449                 result &= ~ACTION_PASS_TO_USER;
4450                 isWakeKey = true;
4451                 break;
4452             }
4453
4454             case KeyEvent.KEYCODE_MEDIA_PLAY:
4455             case KeyEvent.KEYCODE_MEDIA_PAUSE:
4456             case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
4457             case KeyEvent.KEYCODE_HEADSETHOOK:
4458             case KeyEvent.KEYCODE_MUTE:
4459             case KeyEvent.KEYCODE_MEDIA_STOP:
4460             case KeyEvent.KEYCODE_MEDIA_NEXT:
4461             case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
4462             case KeyEvent.KEYCODE_MEDIA_REWIND:
4463             case KeyEvent.KEYCODE_MEDIA_RECORD:
4464             case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
4465             case KeyEvent.KEYCODE_MEDIA_AUDIO_TRACK: {
4466                 if (MediaSessionLegacyHelper.getHelper(mContext).isGlobalPriorityActive()) {
4467                     // If the global session is active pass all media keys to it
4468                     // instead of the active window.
4469                     result &= ~ACTION_PASS_TO_USER;
4470                 }
4471                 if ((result & ACTION_PASS_TO_USER) == 0) {
4472                     // Only do this if we would otherwise not pass it to the user. In that
4473                     // case, the PhoneWindow class will do the same thing, except it will
4474                     // only do it if the showing app doesn't process the key on its own.
4475                     // Note that we need to make a copy of the key event here because the
4476                     // original key event will be recycled when we return.
4477                     mBroadcastWakeLock.acquire();
4478                     Message msg = mHandler.obtainMessage(MSG_DISPATCH_MEDIA_KEY_WITH_WAKE_LOCK,
4479                             new KeyEvent(event));
4480                     msg.setAsynchronous(true);
4481                     msg.sendToTarget();
4482                 }
4483                 break;
4484             }
4485
4486             case KeyEvent.KEYCODE_CALL: {
4487                 if (down) {
4488                     TelecomManager telecomManager = getTelecommService();
4489                     if (telecomManager != null) {
4490                         if (telecomManager.isRinging()) {
4491                             Log.i(TAG, "interceptKeyBeforeQueueing:"
4492                                   + " CALL key-down while ringing: Answer the call!");
4493                             telecomManager.acceptRingingCall();
4494
4495                             // And *don't* pass this key thru to the current activity
4496                             // (which is presumably the InCallScreen.)
4497                             result &= ~ACTION_PASS_TO_USER;
4498                         }
4499                     }
4500                 }
4501                 break;
4502             }
4503             case KeyEvent.KEYCODE_VOICE_ASSIST: {
4504                 // Only do this if we would otherwise not pass it to the user. In that case,
4505                 // interceptKeyBeforeDispatching would apply a similar but different policy in
4506                 // order to invoke voice assist actions. Note that we need to make a copy of the
4507                 // key event here because the original key event will be recycled when we return.
4508                 if ((result & ACTION_PASS_TO_USER) == 0 && !down) {
4509                     mBroadcastWakeLock.acquire();
4510                     Message msg = mHandler.obtainMessage(MSG_LAUNCH_VOICE_ASSIST_WITH_WAKE_LOCK,
4511                             keyguardActive ? 1 : 0, 0);
4512                     msg.setAsynchronous(true);
4513                     msg.sendToTarget();
4514                 }
4515             }
4516         }
4517
4518         if (useHapticFeedback) {
4519             performHapticFeedbackLw(null, HapticFeedbackConstants.VIRTUAL_KEY, false);
4520         }
4521
4522         if (isWakeKey) {
4523             mPowerManager.wakeUp(event.getEventTime());
4524         }
4525         return result;
4526     }
4527
4528     /**
4529      * When the screen is off we ignore some keys that might otherwise typically
4530      * be considered wake keys.  We filter them out here.
4531      *
4532      * {@link KeyEvent#KEYCODE_POWER} is notably absent from this list because it
4533      * is always considered a wake key.
4534      */
4535     private boolean isWakeKeyWhenScreenOff(int keyCode) {
4536         switch (keyCode) {
4537             // ignore volume keys unless docked
4538             case KeyEvent.KEYCODE_VOLUME_UP:
4539             case KeyEvent.KEYCODE_VOLUME_DOWN:
4540             case KeyEvent.KEYCODE_VOLUME_MUTE:
4541                 return mDockMode != Intent.EXTRA_DOCK_STATE_UNDOCKED;
4542
4543             // ignore media and camera keys
4544             case KeyEvent.KEYCODE_MUTE:
4545             case KeyEvent.KEYCODE_HEADSETHOOK:
4546             case KeyEvent.KEYCODE_MEDIA_PLAY:
4547             case KeyEvent.KEYCODE_MEDIA_PAUSE:
4548             case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
4549             case KeyEvent.KEYCODE_MEDIA_STOP:
4550             case KeyEvent.KEYCODE_MEDIA_NEXT:
4551             case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
4552             case KeyEvent.KEYCODE_MEDIA_REWIND:
4553             case KeyEvent.KEYCODE_MEDIA_RECORD:
4554             case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD:
4555             case KeyEvent.KEYCODE_MEDIA_AUDIO_TRACK:
4556             case KeyEvent.KEYCODE_CAMERA:
4557                 return false;
4558         }
4559         return true;
4560     }
4561
4562
4563     /** {@inheritDoc} */
4564     @Override
4565     public int interceptMotionBeforeQueueingNonInteractive(long whenNanos, int policyFlags) {
4566         if ((policyFlags & FLAG_WAKE) != 0) {
4567             mPowerManager.wakeUp(whenNanos / 1000000);
4568             return 0;
4569         }
4570         if (shouldDispatchInputWhenNonInteractive()) {
4571             return ACTION_PASS_TO_USER;
4572         }
4573         return 0;
4574     }
4575
4576     private boolean shouldDispatchInputWhenNonInteractive() {
4577         return keyguardIsShowingTq() && mDisplay != null &&
4578                 mDisplay.getState() != Display.STATE_OFF;
4579     }
4580
4581     void dispatchMediaKeyWithWakeLock(KeyEvent event) {
4582         if (DEBUG_INPUT) {
4583             Slog.d(TAG, "dispatchMediaKeyWithWakeLock: " + event);
4584         }
4585
4586         if (mHavePendingMediaKeyRepeatWithWakeLock) {
4587             if (DEBUG_INPUT) {
4588                 Slog.d(TAG, "dispatchMediaKeyWithWakeLock: canceled repeat");
4589             }
4590
4591             mHandler.removeMessages(MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK);
4592             mHavePendingMediaKeyRepeatWithWakeLock = false;
4593             mBroadcastWakeLock.release(); // pending repeat was holding onto the wake lock
4594         }
4595
4596         dispatchMediaKeyWithWakeLockToAudioService(event);
4597
4598         if (event.getAction() == KeyEvent.ACTION_DOWN
4599                 && event.getRepeatCount() == 0) {
4600             mHavePendingMediaKeyRepeatWithWakeLock = true;
4601
4602             Message msg = mHandler.obtainMessage(
4603                     MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK, event);
4604             msg.setAsynchronous(true);
4605             mHandler.sendMessageDelayed(msg, ViewConfiguration.getKeyRepeatTimeout());
4606         } else {
4607             mBroadcastWakeLock.release();
4608         }
4609     }
4610
4611     void dispatchMediaKeyRepeatWithWakeLock(KeyEvent event) {
4612         mHavePendingMediaKeyRepeatWithWakeLock = false;
4613
4614         KeyEvent repeatEvent = KeyEvent.changeTimeRepeat(event,
4615                 SystemClock.uptimeMillis(), 1, event.getFlags() | KeyEvent.FLAG_LONG_PRESS);
4616         if (DEBUG_INPUT) {
4617             Slog.d(TAG, "dispatchMediaKeyRepeatWithWakeLock: " + repeatEvent);
4618         }
4619
4620         dispatchMediaKeyWithWakeLockToAudioService(repeatEvent);
4621         mBroadcastWakeLock.release();
4622     }
4623
4624     void dispatchMediaKeyWithWakeLockToAudioService(KeyEvent event) {
4625         if (ActivityManagerNative.isSystemReady()) {
4626             MediaSessionLegacyHelper.getHelper(mContext).sendMediaButtonEvent(event, true);
4627         }
4628     }
4629
4630     void launchVoiceAssistWithWakeLock(boolean keyguardActive) {
4631         Intent voiceIntent =
4632             new Intent(RecognizerIntent.ACTION_VOICE_SEARCH_HANDS_FREE);
4633         voiceIntent.putExtra(RecognizerIntent.EXTRA_SECURE, keyguardActive);
4634         mContext.startActivityAsUser(voiceIntent, UserHandle.CURRENT_OR_SELF);
4635         mBroadcastWakeLock.release();
4636     }
4637
4638     BroadcastReceiver mDockReceiver = new BroadcastReceiver() {
4639         @Override
4640         public void onReceive(Context context, Intent intent) {
4641             if (Intent.ACTION_DOCK_EVENT.equals(intent.getAction())) {
4642                 mDockMode = intent.getIntExtra(Intent.EXTRA_DOCK_STATE,
4643                         Intent.EXTRA_DOCK_STATE_UNDOCKED);
4644             } else {
4645                 try {
4646                     IUiModeManager uiModeService = IUiModeManager.Stub.asInterface(
4647                             ServiceManager.getService(Context.UI_MODE_SERVICE));
4648                     mUiMode = uiModeService.getCurrentModeType();
4649                 } catch (RemoteException e) {
4650                 }
4651             }
4652             updateRotation(true);
4653             synchronized (mLock) {
4654                 updateOrientationListenerLp();
4655             }
4656         }
4657     };
4658
4659     BroadcastReceiver mDreamReceiver = new BroadcastReceiver() {
4660         @Override
4661         public void onReceive(Context context, Intent intent) {
4662             if (Intent.ACTION_DREAMING_STARTED.equals(intent.getAction())) {
4663                 if (mKeyguardDelegate != null) {
4664                     mKeyguardDelegate.onDreamingStarted();
4665                 }
4666             } else if (Intent.ACTION_DREAMING_STOPPED.equals(intent.getAction())) {
4667                 if (mKeyguardDelegate != null) {
4668                     mKeyguardDelegate.onDreamingStopped();
4669                 }
4670             }
4671         }
4672     };
4673
4674     BroadcastReceiver mMultiuserReceiver = new BroadcastReceiver() {
4675         @Override
4676         public void onReceive(Context context, Intent intent) {
4677             if (Intent.ACTION_USER_SWITCHED.equals(intent.getAction())) {
4678                 // tickle the settings observer: this first ensures that we're
4679                 // observing the relevant settings for the newly-active user,
4680                 // and then updates our own bookkeeping based on the now-
4681                 // current user.
4682                 mSettingsObserver.onChange(false);
4683
4684                 // force a re-application of focused window sysui visibility.
4685                 // the window may never have been shown for this user
4686                 // e.g. the keyguard when going through the new-user setup flow
4687                 synchronized (mWindowManagerFuncs.getWindowManagerLock()) {
4688                     mLastSystemUiFlags = 0;
4689                     updateSystemUiVisibilityLw();
4690                 }
4691             }
4692         }
4693     };
4694
4695     private final Runnable mRequestTransientNav = new Runnable() {
4696         @Override
4697         public void run() {
4698             requestTransientBars(mNavigationBar);
4699         }
4700     };
4701
4702     private void requestTransientBars(WindowState swipeTarget) {
4703         synchronized (mWindowManagerFuncs.getWindowManagerLock()) {
4704             if (!isUserSetupComplete()) {
4705                 // Swipe-up for navigation bar is disabled during setup
4706                 return;
4707             }
4708             boolean sb = mStatusBarController.checkShowTransientBarLw();
4709             boolean nb = mNavigationBarController.checkShowTransientBarLw();
4710             if (sb || nb) {
4711                 WindowState barTarget = sb ? mStatusBar : mNavigationBar;
4712                 if (sb ^ nb && barTarget != swipeTarget) {
4713                     if (DEBUG) Slog.d(TAG, "Not showing transient bar, wrong swipe target");
4714                     return;
4715                 }
4716                 if (sb) mStatusBarController.showTransient();
4717                 if (nb) mNavigationBarController.showTransient();
4718                 mImmersiveModeConfirmation.confirmCurrentPrompt();
4719                 updateSystemUiVisibilityLw();
4720             }
4721         }
4722     }
4723
4724     // Called on the PowerManager's Notifier thread.
4725     @Override
4726     public void goingToSleep(int why) {
4727         EventLog.writeEvent(70000, 0);
4728         if (DEBUG_WAKEUP) Slog.i(TAG, "Going to sleep...");
4729
4730         // We must get this work done here because the power manager will drop
4731         // the wake lock and let the system suspend once this function returns.
4732         synchronized (mLock) {
4733             mAwake = false;
4734             mKeyguardDrawComplete = false;
4735             updateWakeGestureListenerLp();
4736             updateOrientationListenerLp();
4737             updateLockScreenTimeout();
4738         }
4739
4740         if (mKeyguardDelegate != null) {
4741             mKeyguardDelegate.onScreenTurnedOff(why);
4742         }
4743     }
4744
4745     // Called on the PowerManager's Notifier thread.
4746     @Override
4747     public void wakingUp() {
4748         EventLog.writeEvent(70000, 1);
4749         if (DEBUG_WAKEUP) Slog.i(TAG, "Waking up...");
4750
4751         // Since goToSleep performs these functions synchronously, we must
4752         // do the same here.  We cannot post this work to a handler because
4753         // that might cause it to become reordered with respect to what
4754         // may happen in a future call to goToSleep.
4755         synchronized (mLock) {
4756             mAwake = true;
4757             mKeyguardDrawComplete = false;
4758             if (mKeyguardDelegate != null) {
4759                 mHandler.removeMessages(MSG_KEYGUARD_DRAWN_TIMEOUT);
4760                 mHandler.sendEmptyMessageDelayed(MSG_KEYGUARD_DRAWN_TIMEOUT, 1000);
4761             }
4762
4763             updateWakeGestureListenerLp();
4764             updateOrientationListenerLp();
4765             updateLockScreenTimeout();
4766         }
4767
4768         if (mKeyguardDelegate != null) {
4769             mKeyguardDelegate.onScreenTurnedOn(mKeyguardDelegateCallback);
4770             // ... eventually calls finishKeyguardDrawn
4771         } else {
4772             if (DEBUG_WAKEUP) Slog.d(TAG, "null mKeyguardDelegate: setting mKeyguardDrawComplete.");
4773             finishKeyguardDrawn();
4774         }
4775     }
4776
4777     private void finishKeyguardDrawn() {
4778         synchronized (mLock) {
4779             if (!mAwake || mKeyguardDrawComplete) {
4780                 return; // spurious
4781             }
4782
4783             mKeyguardDrawComplete = true;
4784             if (mKeyguardDelegate != null) {
4785                 mHandler.removeMessages(MSG_KEYGUARD_DRAWN_TIMEOUT);
4786             }
4787         }
4788
4789         finishScreenTurningOn();
4790     }
4791
4792     // Called on the DisplayManager's DisplayPowerController thread.
4793     @Override
4794     public void screenTurnedOff() {
4795         if (DEBUG_WAKEUP) Slog.i(TAG, "Screen turned off...");
4796
4797         synchronized (mLock) {
4798             mScreenOnEarly = false;
4799             mScreenOnFully = false;
4800             mWindowManagerDrawComplete = false;
4801             mScreenOnListener = null;
4802             updateOrientationListenerLp();
4803         }
4804     }
4805
4806     // Called on the DisplayManager's DisplayPowerController thread.
4807     @Override
4808     public void screenTurningOn(final ScreenOnListener screenOnListener) {
4809         if (DEBUG_WAKEUP) Slog.i(TAG, "Screen turning on...");
4810
4811         synchronized (mLock) {
4812             mScreenOnEarly = true;
4813             mScreenOnFully = false;
4814             mWindowManagerDrawComplete = false;
4815             mScreenOnListener = screenOnListener;
4816             updateOrientationListenerLp();
4817         }
4818
4819         mWindowManagerInternal.waitForAllWindowsDrawn(mWindowManagerDrawCallback,
4820                 WAITING_FOR_DRAWN_TIMEOUT);
4821         // ... eventually calls finishWindowsDrawn
4822     }
4823
4824     private void finishWindowsDrawn() {
4825         synchronized (mLock) {
4826             if (!mScreenOnEarly || mWindowManagerDrawComplete) {
4827                 return; // spurious
4828             }
4829
4830             mWindowManagerDrawComplete = true;
4831         }
4832
4833         finishScreenTurningOn();
4834     }
4835
4836     private void finishScreenTurningOn() {
4837         final ScreenOnListener listener;
4838         final boolean enableScreen;
4839         synchronized (mLock) {
4840             if (DEBUG_WAKEUP) Slog.d(TAG,
4841                     "finishScreenTurningOn: mAwake=" + mAwake
4842                             + ", mScreenOnEarly=" + mScreenOnEarly
4843                             + ", mScreenOnFully=" + mScreenOnFully
4844                             + ", mKeyguardDrawComplete=" + mKeyguardDrawComplete
4845                             + ", mWindowManagerDrawComplete=" + mWindowManagerDrawComplete);
4846
4847             if (mScreenOnFully || !mScreenOnEarly || !mWindowManagerDrawComplete
4848                     || (mAwake && !mKeyguardDrawComplete)) {
4849                 return; // spurious or not ready yet
4850             }
4851
4852             if (DEBUG_WAKEUP) Slog.i(TAG, "Finished screen turning on...");
4853             listener = mScreenOnListener;
4854             mScreenOnListener = null;
4855             mScreenOnFully = true;
4856
4857             // Remember the first time we draw the keyguard so we know when we're done with
4858             // the main part of booting and can enable the screen and hide boot messages.
4859             if (!mKeyguardDrawnOnce && mAwake) {
4860                 mKeyguardDrawnOnce = true;
4861                 enableScreen = true;
4862                 if (mBootMessageNeedsHiding) {
4863                     mBootMessageNeedsHiding = false;
4864                     hideBootMessages();
4865                 }
4866             } else {
4867                 enableScreen = false;
4868             }
4869         }
4870
4871         if (listener != null) {
4872             listener.onScreenOn();
4873         }
4874
4875         if (enableScreen) {
4876             try {
4877                 mWindowManager.enableScreenIfNeeded();
4878             } catch (RemoteException unhandled) {
4879             }
4880         }
4881     }
4882
4883     private void handleHideBootMessage() {
4884         synchronized (mLock) {
4885             if (!mKeyguardDrawnOnce) {
4886                 mBootMessageNeedsHiding = true;
4887                 return; // keyguard hasn't drawn the first time yet, not done booting
4888             }
4889         }
4890
4891         if (mBootMsgDialog != null) {
4892             if (DEBUG_WAKEUP) Slog.d(TAG, "handleHideBootMessage: dismissing");
4893             mBootMsgDialog.dismiss();
4894             mBootMsgDialog = null;
4895         }
4896     }
4897
4898     @Override
4899     public boolean isScreenOn() {
4900         return mScreenOnFully;
4901     }
4902
4903     /** {@inheritDoc} */
4904     @Override
4905     public void enableKeyguard(boolean enabled) {
4906         if (mKeyguardDelegate != null) {
4907             mKeyguardDelegate.setKeyguardEnabled(enabled);
4908         }
4909     }
4910
4911     /** {@inheritDoc} */
4912     @Override
4913     public void exitKeyguardSecurely(OnKeyguardExitResult callback) {
4914         if (mKeyguardDelegate != null) {
4915             mKeyguardDelegate.verifyUnlock(callback);
4916         }
4917     }
4918
4919     private boolean keyguardIsShowingTq() {
4920         if (mKeyguardDelegate == null) return false;
4921         return mKeyguardDelegate.isShowingAndNotOccluded();
4922     }
4923
4924
4925     /** {@inheritDoc} */
4926     @Override
4927     public boolean isKeyguardLocked() {
4928         return keyguardOn();
4929     }
4930
4931     /** {@inheritDoc} */
4932     @Override
4933     public boolean isKeyguardSecure() {
4934         if (mKeyguardDelegate == null) return false;
4935         return mKeyguardDelegate.isSecure();
4936     }
4937
4938     // Returns true if keyguard is currently locked whether or not it is currently hidden.
4939     private boolean isKeyguardSecureIncludingHidden() {
4940         return mKeyguardDelegate.isSecure() && mKeyguardDelegate.isShowing();
4941     }
4942
4943     /** {@inheritDoc} */
4944     @Override
4945     public boolean inKeyguardRestrictedKeyInputMode() {
4946         if (mKeyguardDelegate == null) return false;
4947         return mKeyguardDelegate.isInputRestricted();
4948     }
4949
4950     @Override
4951     public void dismissKeyguardLw() {
4952         if (mKeyguardDelegate != null && mKeyguardDelegate.isShowing()) {
4953             mHandler.post(new Runnable() {
4954                 @Override
4955                 public void run() {
4956                     // ask the keyguard to prompt the user to authenticate if necessary
4957                     mKeyguardDelegate.dismiss();
4958                 }
4959             });
4960         }
4961     }
4962
4963     public void notifyActivityDrawnForKeyguardLw() {
4964         if (mKeyguardDelegate != null) {
4965             mHandler.post(new Runnable() {
4966                 @Override
4967                 public void run() {
4968                     mKeyguardDelegate.onActivityDrawn();
4969                 }
4970             });
4971         }
4972     }
4973
4974     @Override
4975     public boolean isKeyguardDrawnLw() {
4976         synchronized (mLock) {
4977             return mKeyguardDrawnOnce;
4978         }
4979     }
4980
4981     @Override
4982     public void startKeyguardExitAnimation(long startTime, long fadeoutDuration) {
4983         if (mKeyguardDelegate != null) {
4984             mKeyguardDelegate.startKeyguardExitAnimation(startTime, fadeoutDuration);
4985         }
4986     }
4987
4988     void sendCloseSystemWindows() {
4989         sendCloseSystemWindows(mContext, null);
4990     }
4991
4992     void sendCloseSystemWindows(String reason) {
4993         sendCloseSystemWindows(mContext, reason);
4994     }
4995
4996     static void sendCloseSystemWindows(Context context, String reason) {
4997         if (ActivityManagerNative.isSystemReady()) {
4998             try {
4999                 ActivityManagerNative.getDefault().closeSystemDialogs(reason);
5000             } catch (RemoteException e) {
5001             }
5002         }
5003     }
5004
5005     @Override
5006     public int rotationForOrientationLw(int orientation, int lastRotation) {
5007         if (false) {
5008             Slog.v(TAG, "rotationForOrientationLw(orient="
5009                         + orientation + ", last=" + lastRotation
5010                         + "); user=" + mUserRotation + " "
5011                         + ((mUserRotationMode == WindowManagerPolicy.USER_ROTATION_LOCKED)
5012                             ? "USER_ROTATION_LOCKED" : "")
5013                         );
5014         }
5015
5016         if (mForceDefaultOrientation) {
5017             return Surface.ROTATION_0;
5018         }
5019
5020         synchronized (mLock) {
5021             int sensorRotation = mOrientationListener.getProposedRotation(); // may be -1
5022             if (sensorRotation < 0) {
5023                 sensorRotation = lastRotation;
5024             }
5025
5026             final int preferredRotation;
5027             if (mLidState == LID_OPEN && mLidOpenRotation >= 0) {
5028                 // Ignore sensor when lid switch is open and rotation is forced.
5029                 preferredRotation = mLidOpenRotation;
5030             } else if (mDockMode == Intent.EXTRA_DOCK_STATE_CAR
5031                     && (mCarDockEnablesAccelerometer || mCarDockRotation >= 0)) {
5032                 // Ignore sensor when in car dock unless explicitly enabled.
5033                 // This case can override the behavior of NOSENSOR, and can also
5034                 // enable 180 degree rotation while docked.
5035                 preferredRotation = mCarDockEnablesAccelerometer
5036                         ? sensorRotation : mCarDockRotation;
5037             } else if ((mDockMode == Intent.EXTRA_DOCK_STATE_DESK
5038                     || mDockMode == Intent.EXTRA_DOCK_STATE_LE_DESK
5039                     || mDockMode == Intent.EXTRA_DOCK_STATE_HE_DESK)
5040                     && (mDeskDockEnablesAccelerometer || mDeskDockRotation >= 0)) {
5041                 // Ignore sensor when in desk dock unless explicitly enabled.
5042                 // This case can override the behavior of NOSENSOR, and can also
5043                 // enable 180 degree rotation while docked.
5044                 preferredRotation = mDeskDockEnablesAccelerometer
5045                         ? sensorRotation : mDeskDockRotation;
5046             } else if (mHdmiPlugged && mDemoHdmiRotationLock) {
5047                 // Ignore sensor when plugged into HDMI when demo HDMI rotation lock enabled.
5048                 // Note that the dock orientation overrides the HDMI orientation.
5049                 preferredRotation = mDemoHdmiRotation;
5050             } else if (mHdmiPlugged && mDockMode == Intent.EXTRA_DOCK_STATE_UNDOCKED
5051                     && mUndockedHdmiRotation >= 0) {
5052                 // Ignore sensor when plugged into HDMI and an undocked orientation has
5053                 // been specified in the configuration (only for legacy devices without
5054                 // full multi-display support).
5055                 // Note that the dock orientation overrides the HDMI orientation.
5056                 preferredRotation = mUndockedHdmiRotation;
5057             } else if (orientation == ActivityInfo.SCREEN_ORIENTATION_LOCKED) {
5058                 // Application just wants to remain locked in the last rotation.
5059                 preferredRotation = lastRotation;
5060             } else if (!mSupportAutoRotation) {
5061                 // If we don't support auto-rotation then bail out here and ignore
5062                 // the sensor and any rotation lock settings.
5063                 preferredRotation = -1;
5064             } else if ((mUserRotationMode == WindowManagerPolicy.USER_ROTATION_FREE
5065                             && (orientation == ActivityInfo.SCREEN_ORIENTATION_USER
5066                                     || orientation == ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED
5067                                     || orientation == ActivityInfo.SCREEN_ORIENTATION_USER_LANDSCAPE
5068                                     || orientation == ActivityInfo.SCREEN_ORIENTATION_USER_PORTRAIT
5069                                     || orientation == ActivityInfo.SCREEN_ORIENTATION_FULL_USER))
5070                     || orientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR
5071                     || orientation == ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR
5072                     || orientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE
5073                     || orientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT) {
5074                 // Otherwise, use sensor only if requested by the application or enabled
5075                 // by default for USER or UNSPECIFIED modes.  Does not apply to NOSENSOR.
5076                 if (mAllowAllRotations < 0) {
5077                     // Can't read this during init() because the context doesn't
5078                     // have display metrics at that time so we cannot determine
5079                     // tablet vs. phone then.
5080                     mAllowAllRotations = mContext.getResources().getBoolean(
5081                             com.android.internal.R.bool.config_allowAllRotations) ? 1 : 0;
5082                 }
5083                 if (sensorRotation != Surface.ROTATION_180
5084                         || mAllowAllRotations == 1
5085                         || orientation == ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR
5086                         || orientation == ActivityInfo.SCREEN_ORIENTATION_FULL_USER) {
5087                     preferredRotation = sensorRotation;
5088                 } else {
5089                     preferredRotation = lastRotation;
5090                 }
5091             } else if (mUserRotationMode == WindowManagerPolicy.USER_ROTATION_LOCKED
5092                     && orientation != ActivityInfo.SCREEN_ORIENTATION_NOSENSOR) {
5093                 // Apply rotation lock.  Does not apply to NOSENSOR.
5094                 // The idea is that the user rotation expresses a weak preference for the direction
5095                 // of gravity and as NOSENSOR is never affected by gravity, then neither should
5096                 // NOSENSOR be affected by rotation lock (although it will be affected by docks).
5097                 preferredRotation = mUserRotation;
5098             } else {
5099                 // No overriding preference.
5100                 // We will do exactly what the application asked us to do.
5101                 preferredRotation = -1;
5102             }
5103
5104             switch (orientation) {
5105                 case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
5106                     // Return portrait unless overridden.
5107                     if (isAnyPortrait(preferredRotation)) {
5108                         return preferredRotation;
5109                     }
5110                     return mPortraitRotation;
5111
5112                 case ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE:
5113                     // Return landscape unless overridden.
5114                     if (isLandscapeOrSeascape(preferredRotation)) {
5115                         return preferredRotation;
5116                     }
5117                     return mLandscapeRotation;
5118
5119                 case ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT:
5120                     // Return reverse portrait unless overridden.
5121                     if (isAnyPortrait(preferredRotation)) {
5122                         return preferredRotation;
5123                     }
5124                     return mUpsideDownRotation;
5125
5126                 case ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE:
5127                     // Return seascape unless overridden.
5128                     if (isLandscapeOrSeascape(preferredRotation)) {
5129                         return preferredRotation;
5130                     }
5131                     return mSeascapeRotation;
5132
5133                 case ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE:
5134                 case ActivityInfo.SCREEN_ORIENTATION_USER_LANDSCAPE:
5135                     // Return either landscape rotation.
5136                     if (isLandscapeOrSeascape(preferredRotation)) {
5137                         return preferredRotation;
5138                     }
5139                     if (isLandscapeOrSeascape(lastRotation)) {
5140                         return lastRotation;
5141                     }
5142                     return mLandscapeRotation;
5143
5144                 case ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT:
5145                 case ActivityInfo.SCREEN_ORIENTATION_USER_PORTRAIT:
5146                     // Return either portrait rotation.
5147                     if (isAnyPortrait(preferredRotation)) {
5148                         return preferredRotation;
5149                     }
5150                     if (isAnyPortrait(lastRotation)) {
5151                         return lastRotation;
5152                     }
5153                     return mPortraitRotation;
5154
5155                 default:
5156                     // For USER, UNSPECIFIED, NOSENSOR, SENSOR and FULL_SENSOR,
5157                     // just return the preferred orientation we already calculated.
5158                     if (preferredRotation >= 0) {
5159                         return preferredRotation;
5160                     }
5161                     return Surface.ROTATION_0;
5162             }
5163         }
5164     }
5165
5166     @Override
5167     public boolean rotationHasCompatibleMetricsLw(int orientation, int rotation) {
5168         switch (orientation) {
5169             case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
5170             case ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT:
5171             case ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT:
5172                 return isAnyPortrait(rotation);
5173
5174             case ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE:
5175             case ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE:
5176             case ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE:
5177                 return isLandscapeOrSeascape(rotation);
5178
5179             default:
5180                 return true;
5181         }
5182     }
5183
5184     @Override
5185     public void setRotationLw(int rotation) {
5186         mOrientationListener.setCurrentRotation(rotation);
5187     }
5188
5189     private boolean isLandscapeOrSeascape(int rotation) {
5190         return rotation == mLandscapeRotation || rotation == mSeascapeRotation;
5191     }
5192
5193     private boolean isAnyPortrait(int rotation) {
5194         return rotation == mPortraitRotation || rotation == mUpsideDownRotation;
5195     }
5196
5197     @Override
5198     public int getUserRotationMode() {
5199         return Settings.System.getIntForUser(mContext.getContentResolver(),
5200                 Settings.System.ACCELEROMETER_ROTATION, 0, UserHandle.USER_CURRENT) != 0 ?
5201                         WindowManagerPolicy.USER_ROTATION_FREE :
5202                                 WindowManagerPolicy.USER_ROTATION_LOCKED;
5203     }
5204
5205     // User rotation: to be used when all else fails in assigning an orientation to the device
5206     @Override
5207     public void setUserRotationMode(int mode, int rot) {
5208         ContentResolver res = mContext.getContentResolver();
5209
5210         // mUserRotationMode and mUserRotation will be assigned by the content observer
5211         if (mode == WindowManagerPolicy.USER_ROTATION_LOCKED) {
5212             Settings.System.putIntForUser(res,
5213                     Settings.System.USER_ROTATION,
5214                     rot,
5215                     UserHandle.USER_CURRENT);
5216             Settings.System.putIntForUser(res,
5217                     Settings.System.ACCELEROMETER_ROTATION,
5218                     0,
5219                     UserHandle.USER_CURRENT);
5220         } else {
5221             Settings.System.putIntForUser(res,
5222                     Settings.System.ACCELEROMETER_ROTATION,
5223                     1,
5224                     UserHandle.USER_CURRENT);
5225         }
5226     }
5227
5228     @Override
5229     public void setSafeMode(boolean safeMode) {
5230         mSafeMode = safeMode;
5231         performHapticFeedbackLw(null, safeMode
5232                 ? HapticFeedbackConstants.SAFE_MODE_ENABLED
5233                 : HapticFeedbackConstants.SAFE_MODE_DISABLED, true);
5234     }
5235
5236     static long[] getLongIntArray(Resources r, int resid) {
5237         int[] ar = r.getIntArray(resid);
5238         if (ar == null) {
5239             return null;
5240         }
5241         long[] out = new long[ar.length];
5242         for (int i=0; i<ar.length; i++) {
5243             out[i] = ar[i];
5244         }
5245         return out;
5246     }
5247
5248     /** {@inheritDoc} */
5249     @Override
5250     public void systemReady() {
5251         mKeyguardDelegate = new KeyguardServiceDelegate(mContext, null);
5252         mKeyguardDelegate.onSystemReady();
5253
5254         readCameraLensCoverState();
5255         updateUiMode();
5256         synchronized (mLock) {
5257             updateOrientationListenerLp();
5258             mSystemReady = true;
5259             mHandler.post(new Runnable() {
5260                 @Override
5261                 public void run() {
5262                     updateSettings();
5263                 }
5264             });
5265         }
5266     }
5267
5268     /** {@inheritDoc} */
5269     @Override
5270     public void systemBooted() {
5271         if (mKeyguardDelegate != null) {
5272             mKeyguardDelegate.bindService(mContext);
5273             mKeyguardDelegate.onBootCompleted();
5274         }
5275         synchronized (mLock) {
5276             mSystemBooted = true;
5277         }
5278         wakingUp();
5279         screenTurningOn(null);
5280     }
5281
5282     ProgressDialog mBootMsgDialog = null;
5283
5284     /** {@inheritDoc} */
5285     @Override
5286     public void showBootMessage(final CharSequence msg, final boolean always) {
5287         mHandler.post(new Runnable() {
5288             @Override public void run() {
5289                 if (mBootMsgDialog == null) {
5290                     int theme;
5291                     if (mContext.getPackageManager().hasSystemFeature(
5292                             PackageManager.FEATURE_WATCH)) {
5293                         theme = com.android.internal.R.style.Theme_Micro_Dialog_Alert;
5294                     } else if (mContext.getPackageManager().hasSystemFeature(
5295                             PackageManager.FEATURE_TELEVISION)) {
5296                         theme = com.android.internal.R.style.Theme_Leanback_Dialog_Alert;
5297                     } else {
5298                         theme = 0;
5299                     }
5300
5301                     mBootMsgDialog = new ProgressDialog(mContext, theme) {
5302                         // This dialog will consume all events coming in to
5303                         // it, to avoid it trying to do things too early in boot.
5304                         @Override public boolean dispatchKeyEvent(KeyEvent event) {
5305                             return true;
5306                         }
5307                         @Override public boolean dispatchKeyShortcutEvent(KeyEvent event) {
5308                             return true;
5309                         }
5310                         @Override public boolean dispatchTouchEvent(MotionEvent ev) {
5311                             return true;
5312                         }
5313                         @Override public boolean dispatchTrackballEvent(MotionEvent ev) {
5314                             return true;
5315                         }
5316                         @Override public boolean dispatchGenericMotionEvent(MotionEvent ev) {
5317                             return true;
5318                         }
5319                         @Override public boolean dispatchPopulateAccessibilityEvent(
5320                                 AccessibilityEvent event) {
5321                             return true;
5322                         }
5323                     };
5324                     mBootMsgDialog.setTitle(R.string.android_upgrading_title);
5325                     mBootMsgDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
5326                     mBootMsgDialog.setIndeterminate(true);
5327                     mBootMsgDialog.getWindow().setType(
5328                             WindowManager.LayoutParams.TYPE_BOOT_PROGRESS);
5329                     mBootMsgDialog.getWindow().addFlags(
5330                             WindowManager.LayoutParams.FLAG_DIM_BEHIND
5331                             | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
5332                     mBootMsgDialog.getWindow().setDimAmount(1);
5333                     WindowManager.LayoutParams lp = mBootMsgDialog.getWindow().getAttributes();
5334                     lp.screenOrientation = ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
5335                     mBootMsgDialog.getWindow().setAttributes(lp);
5336                     mBootMsgDialog.setCancelable(false);
5337                     mBootMsgDialog.show();
5338                 }
5339                 mBootMsgDialog.setMessage(msg);
5340             }
5341         });
5342     }
5343
5344     /** {@inheritDoc} */
5345     @Override
5346     public void hideBootMessages() {
5347         mHandler.sendEmptyMessage(MSG_HIDE_BOOT_MESSAGE);
5348     }
5349
5350     /** {@inheritDoc} */
5351     @Override
5352     public void userActivity() {
5353         // ***************************************
5354         // NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE
5355         // ***************************************
5356         // THIS IS CALLED FROM DEEP IN THE POWER MANAGER
5357         // WITH ITS LOCKS HELD.
5358         //
5359         // This code must be VERY careful about the locks
5360         // it acquires.
5361         // In fact, the current code acquires way too many,
5362         // and probably has lurking deadlocks.
5363
5364         synchronized (mScreenLockTimeout) {
5365             if (mLockScreenTimerActive) {
5366                 // reset the timer
5367                 mHandler.removeCallbacks(mScreenLockTimeout);
5368                 mHandler.postDelayed(mScreenLockTimeout, mLockScreenTimeout);
5369             }
5370         }
5371     }
5372
5373     class ScreenLockTimeout implements Runnable {
5374         Bundle options;
5375
5376         @Override
5377         public void run() {
5378             synchronized (this) {
5379                 if (localLOGV) Log.v(TAG, "mScreenLockTimeout activating keyguard");
5380                 if (mKeyguardDelegate != null) {
5381                     mKeyguardDelegate.doKeyguardTimeout(options);
5382                 }
5383                 mLockScreenTimerActive = false;
5384                 options = null;
5385             }
5386         }
5387
5388         public void setLockOptions(Bundle options) {
5389             this.options = options;
5390         }
5391     }
5392
5393     ScreenLockTimeout mScreenLockTimeout = new ScreenLockTimeout();
5394
5395     @Override
5396     public void lockNow(Bundle options) {
5397         mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null);
5398         mHandler.removeCallbacks(mScreenLockTimeout);
5399         if (options != null) {
5400             // In case multiple calls are made to lockNow, we don't wipe out the options
5401             // until the runnable actually executes.
5402             mScreenLockTimeout.setLockOptions(options);
5403         }
5404         mHandler.post(mScreenLockTimeout);
5405     }
5406
5407     private void updateLockScreenTimeout() {
5408         synchronized (mScreenLockTimeout) {
5409             boolean enable = (mAllowLockscreenWhenOn && mAwake &&
5410                     mKeyguardDelegate != null && mKeyguardDelegate.isSecure());
5411             if (mLockScreenTimerActive != enable) {
5412                 if (enable) {
5413                     if (localLOGV) Log.v(TAG, "setting lockscreen timer");
5414                     mHandler.postDelayed(mScreenLockTimeout, mLockScreenTimeout);
5415                 } else {
5416                     if (localLOGV) Log.v(TAG, "clearing lockscreen timer");
5417                     mHandler.removeCallbacks(mScreenLockTimeout);
5418                 }
5419                 mLockScreenTimerActive = enable;
5420             }
5421         }
5422     }
5423
5424     /** {@inheritDoc} */
5425     @Override
5426     public void enableScreenAfterBoot() {
5427         readLidState();
5428         applyLidSwitchState();
5429         updateRotation(true);
5430     }
5431
5432     private void applyLidSwitchState() {
5433         if (mLidState == LID_CLOSED && mLidControlsSleep) {
5434             mPowerManager.goToSleep(SystemClock.uptimeMillis(),
5435                     PowerManager.GO_TO_SLEEP_REASON_LID_SWITCH,
5436                     PowerManager.GO_TO_SLEEP_FLAG_NO_DOZE);
5437         }
5438
5439         synchronized (mLock) {
5440             updateWakeGestureListenerLp();
5441         }
5442     }
5443
5444     void updateUiMode() {
5445         if (mUiModeManager == null) {
5446             mUiModeManager = IUiModeManager.Stub.asInterface(
5447                     ServiceManager.getService(Context.UI_MODE_SERVICE));
5448         }
5449         try {
5450             mUiMode = mUiModeManager.getCurrentModeType();
5451         } catch (RemoteException e) {
5452         }
5453     }
5454
5455     void updateRotation(boolean alwaysSendConfiguration) {
5456         try {
5457             //set orientation on WindowManager
5458             mWindowManager.updateRotation(alwaysSendConfiguration, false);
5459         } catch (RemoteException e) {
5460             // Ignore
5461         }
5462     }
5463
5464     void updateRotation(boolean alwaysSendConfiguration, boolean forceRelayout) {
5465         try {
5466             //set orientation on WindowManager
5467             mWindowManager.updateRotation(alwaysSendConfiguration, forceRelayout);
5468         } catch (RemoteException e) {
5469             // Ignore
5470         }
5471     }
5472
5473     /**
5474      * Return an Intent to launch the currently active dock app as home.  Returns
5475      * null if the standard home should be launched, which is the case if any of the following is
5476      * true:
5477      * <ul>
5478      *  <li>The device is not in either car mode or desk mode
5479      *  <li>The device is in car mode but ENABLE_CAR_DOCK_HOME_CAPTURE is false
5480      *  <li>The device is in desk mode but ENABLE_DESK_DOCK_HOME_CAPTURE is false
5481      *  <li>The device is in car mode but there's no CAR_DOCK app with METADATA_DOCK_HOME
5482      *  <li>The device is in desk mode but there's no DESK_DOCK app with METADATA_DOCK_HOME
5483      * </ul>
5484      * @return A dock intent.
5485      */
5486     Intent createHomeDockIntent() {
5487         Intent intent = null;
5488
5489         // What home does is based on the mode, not the dock state.  That
5490         // is, when in car mode you should be taken to car home regardless
5491         // of whether we are actually in a car dock.
5492         if (mUiMode == Configuration.UI_MODE_TYPE_CAR) {
5493             if (ENABLE_CAR_DOCK_HOME_CAPTURE) {
5494                 intent = mCarDockIntent;
5495             }
5496         } else if (mUiMode == Configuration.UI_MODE_TYPE_DESK) {
5497             if (ENABLE_DESK_DOCK_HOME_CAPTURE) {
5498                 intent = mDeskDockIntent;
5499             }
5500         } else if (mUiMode == Configuration.UI_MODE_TYPE_WATCH
5501                 && (mDockMode == Intent.EXTRA_DOCK_STATE_DESK
5502                         || mDockMode == Intent.EXTRA_DOCK_STATE_HE_DESK
5503                         || mDockMode == Intent.EXTRA_DOCK_STATE_LE_DESK)) {
5504             // Always launch dock home from home when watch is docked, if it exists.
5505             intent = mDeskDockIntent;
5506         }
5507
5508         if (intent == null) {
5509             return null;
5510         }
5511
5512         ActivityInfo ai = null;
5513         ResolveInfo info = mContext.getPackageManager().resolveActivityAsUser(
5514                 intent,
5515                 PackageManager.MATCH_DEFAULT_ONLY | PackageManager.GET_META_DATA,
5516                 mCurrentUserId);
5517         if (info != null) {
5518             ai = info.activityInfo;
5519         }
5520         if (ai != null
5521                 && ai.metaData != null
5522                 && ai.metaData.getBoolean(Intent.METADATA_DOCK_HOME)) {
5523             intent = new Intent(intent);
5524             intent.setClassName(ai.packageName, ai.name);
5525             return intent;
5526         }
5527
5528         return null;
5529     }
5530
5531     void startDockOrHome() {
5532         awakenDreams();
5533
5534         Intent dock = createHomeDockIntent();
5535         if (dock != null) {
5536             try {
5537                 mContext.startActivityAsUser(dock, UserHandle.CURRENT);
5538                 return;
5539             } catch (ActivityNotFoundException e) {
5540             }
5541         }
5542
5543         mContext.startActivityAsUser(mHomeIntent, UserHandle.CURRENT);
5544     }
5545
5546     /**
5547      * goes to the home screen
5548      * @return whether it did anything
5549      */
5550     boolean goHome() {
5551         if (false) {
5552             // This code always brings home to the front.
5553             try {
5554                 ActivityManagerNative.getDefault().stopAppSwitches();
5555             } catch (RemoteException e) {
5556             }
5557             sendCloseSystemWindows();
5558             startDockOrHome();
5559         } else {
5560             // This code brings home to the front or, if it is already
5561             // at the front, puts the device to sleep.
5562             try {
5563                 if (SystemProperties.getInt("persist.sys.uts-test-mode", 0) == 1) {
5564                     /// Roll back EndcallBehavior as the cupcake design to pass P1 lab entry.
5565                     Log.d(TAG, "UTS-TEST-MODE");
5566                 } else {
5567                     ActivityManagerNative.getDefault().stopAppSwitches();
5568                     sendCloseSystemWindows();
5569                     Intent dock = createHomeDockIntent();
5570                     if (dock != null) {
5571                         int result = ActivityManagerNative.getDefault()
5572                                 .startActivityAsUser(null, null, dock,
5573                                         dock.resolveTypeIfNeeded(mContext.getContentResolver()),
5574                                         null, null, 0,
5575                                         ActivityManager.START_FLAG_ONLY_IF_NEEDED,
5576                                         null, null, UserHandle.USER_CURRENT);
5577                         if (result == ActivityManager.START_RETURN_INTENT_TO_CALLER) {
5578                             return false;
5579                         }
5580                     }
5581                 }
5582                 int result = ActivityManagerNative.getDefault()
5583                         .startActivityAsUser(null, null, mHomeIntent,
5584                                 mHomeIntent.resolveTypeIfNeeded(mContext.getContentResolver()),
5585                                 null, null, 0,
5586                                 ActivityManager.START_FLAG_ONLY_IF_NEEDED,
5587                                 null, null, UserHandle.USER_CURRENT);
5588                 if (result == ActivityManager.START_RETURN_INTENT_TO_CALLER) {
5589                     return false;
5590                 }
5591             } catch (RemoteException ex) {
5592                 // bummer, the activity manager, which is in this process, is dead
5593             }
5594         }
5595         return true;
5596     }
5597
5598     @Override
5599     public void setCurrentOrientationLw(int newOrientation) {
5600         synchronized (mLock) {
5601             if (newOrientation != mCurrentAppOrientation) {
5602                 mCurrentAppOrientation = newOrientation;
5603                 updateOrientationListenerLp();
5604             }
5605         }
5606     }
5607
5608     private void performAuditoryFeedbackForAccessibilityIfNeed() {
5609         if (!isGlobalAccessibilityGestureEnabled()) {
5610             return;
5611         }
5612         AudioManager audioManager = (AudioManager) mContext.getSystemService(
5613                 Context.AUDIO_SERVICE);
5614         if (audioManager.isSilentMode()) {
5615             return;
5616         }
5617         Ringtone ringTone = RingtoneManager.getRingtone(mContext,
5618                 Settings.System.DEFAULT_NOTIFICATION_URI);
5619         ringTone.setStreamType(AudioManager.STREAM_MUSIC);
5620         ringTone.play();
5621     }
5622
5623     private boolean isGlobalAccessibilityGestureEnabled() {
5624         return Settings.Global.getInt(mContext.getContentResolver(),
5625                 Settings.Global.ENABLE_ACCESSIBILITY_GLOBAL_GESTURE_ENABLED, 0) == 1;
5626     }
5627
5628     @Override
5629     public boolean performHapticFeedbackLw(WindowState win, int effectId, boolean always) {
5630         if (!mVibrator.hasVibrator()) {
5631             return false;
5632         }
5633         final boolean hapticsDisabled = Settings.System.getIntForUser(mContext.getContentResolver(),
5634                 Settings.System.HAPTIC_FEEDBACK_ENABLED, 0, UserHandle.USER_CURRENT) == 0;
5635         if (hapticsDisabled && !always) {
5636             return false;
5637         }
5638         long[] pattern = null;
5639         switch (effectId) {
5640             case HapticFeedbackConstants.LONG_PRESS:
5641                 pattern = mLongPressVibePattern;
5642                 break;
5643             case HapticFeedbackConstants.VIRTUAL_KEY:
5644                 pattern = mVirtualKeyVibePattern;
5645                 break;
5646             case HapticFeedbackConstants.KEYBOARD_TAP:
5647                 pattern = mKeyboardTapVibePattern;
5648                 break;
5649             case HapticFeedbackConstants.CLOCK_TICK:
5650                 pattern = mClockTickVibePattern;
5651                 break;
5652             case HapticFeedbackConstants.CALENDAR_DATE:
5653                 pattern = mCalendarDateVibePattern;
5654                 break;
5655             case HapticFeedbackConstants.SAFE_MODE_DISABLED:
5656                 pattern = mSafeModeDisabledVibePattern;
5657                 break;
5658             case HapticFeedbackConstants.SAFE_MODE_ENABLED:
5659                 pattern = mSafeModeEnabledVibePattern;
5660                 break;
5661             default:
5662                 return false;
5663         }
5664         int owningUid;
5665         String owningPackage;
5666         if (win != null) {
5667             owningUid = win.getOwningUid();
5668             owningPackage = win.getOwningPackage();
5669         } else {
5670             owningUid = android.os.Process.myUid();
5671             owningPackage = mContext.getOpPackageName();
5672         }
5673         if (pattern.length == 1) {
5674             // One-shot vibration
5675             mVibrator.vibrate(owningUid, owningPackage, pattern[0], VIBRATION_ATTRIBUTES);
5676         } else {
5677             // Pattern vibration
5678             mVibrator.vibrate(owningUid, owningPackage, pattern, -1, VIBRATION_ATTRIBUTES);
5679         }
5680         return true;
5681     }
5682
5683     @Override
5684     public void keepScreenOnStartedLw() {
5685     }
5686
5687     @Override
5688     public void keepScreenOnStoppedLw() {
5689         if (mKeyguardDelegate != null && !mKeyguardDelegate.isShowingAndNotOccluded()) {
5690             mPowerManager.userActivity(SystemClock.uptimeMillis(), false);
5691         }
5692     }
5693
5694     private int updateSystemUiVisibilityLw() {
5695         // If there is no window focused, there will be nobody to handle the events
5696         // anyway, so just hang on in whatever state we're in until things settle down.
5697         WindowState win = mFocusedWindow != null ? mFocusedWindow : mTopFullscreenOpaqueWindowState;
5698         if (win == null) {
5699             return 0;
5700         }
5701         if ((win.getAttrs().privateFlags & PRIVATE_FLAG_KEYGUARD) != 0 && mHideLockScreen == true) {
5702             // We are updating at a point where the keyguard has gotten
5703             // focus, but we were last in a state where the top window is
5704             // hiding it.  This is probably because the keyguard as been
5705             // shown while the top window was displayed, so we want to ignore
5706             // it here because this is just a very transient change and it
5707             // will quickly lose focus once it correctly gets hidden.
5708             return 0;
5709         }
5710
5711         int tmpVisibility = PolicyControl.getSystemUiVisibility(win, null)
5712                 & ~mResettingSystemUiFlags
5713                 & ~mForceClearedSystemUiFlags;
5714         if (mForcingShowNavBar && win.getSurfaceLayer() < mForcingShowNavBarLayer) {
5715             tmpVisibility &= ~PolicyControl.adjustClearableFlags(win, View.SYSTEM_UI_CLEARABLE_FLAGS);
5716         }
5717         final int visibility = updateSystemBarsLw(win, mLastSystemUiFlags, tmpVisibility);
5718         final int diff = visibility ^ mLastSystemUiFlags;
5719         final boolean needsMenu = win.getNeedsMenuLw(mTopFullscreenOpaqueWindowState);
5720         if (diff == 0 && mLastFocusNeedsMenu == needsMenu
5721                 && mFocusedApp == win.getAppToken()) {
5722             return 0;
5723         }
5724         mLastSystemUiFlags = visibility;
5725         mLastFocusNeedsMenu = needsMenu;
5726         mFocusedApp = win.getAppToken();
5727         mHandler.post(new Runnable() {
5728                 @Override
5729                 public void run() {
5730                     try {
5731                         IStatusBarService statusbar = getStatusBarService();
5732                         if (statusbar != null) {
5733                             statusbar.setSystemUiVisibility(visibility, 0xffffffff);
5734                             statusbar.topAppWindowChanged(needsMenu);
5735                         }
5736                     } catch (RemoteException e) {
5737                         // re-acquire status bar service next time it is needed.
5738                         mStatusBarService = null;
5739                     }
5740                 }
5741             });
5742         return diff;
5743     }
5744
5745     private int updateSystemBarsLw(WindowState win, int oldVis, int vis) {
5746         // apply translucent bar vis flags
5747         WindowState transWin = isStatusBarKeyguard() && !mHideLockScreen
5748                 ? mStatusBar
5749                 : mTopFullscreenOpaqueWindowState;
5750         vis = mStatusBarController.applyTranslucentFlagLw(transWin, vis, oldVis);
5751         vis = mNavigationBarController.applyTranslucentFlagLw(transWin, vis, oldVis);
5752
5753         // prevent status bar interaction from clearing certain flags
5754         boolean statusBarHasFocus = win.getAttrs().type == TYPE_STATUS_BAR;
5755         if (statusBarHasFocus && !isStatusBarKeyguard()) {
5756             int flags = View.SYSTEM_UI_FLAG_FULLSCREEN
5757                     | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION
5758                     | View.SYSTEM_UI_FLAG_IMMERSIVE
5759                     | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
5760             if (mHideLockScreen) {
5761                 flags |= View.STATUS_BAR_TRANSLUCENT | View.NAVIGATION_BAR_TRANSLUCENT;
5762             }
5763             vis = (vis & ~flags) | (oldVis & flags);
5764         }
5765
5766         if (!areTranslucentBarsAllowed() && transWin != mStatusBar) {
5767             vis &= ~(View.NAVIGATION_BAR_TRANSLUCENT | View.STATUS_BAR_TRANSLUCENT
5768                     | View.SYSTEM_UI_TRANSPARENT);
5769         }
5770
5771         // update status bar
5772         boolean immersiveSticky =
5773                 (vis & View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY) != 0;
5774         boolean hideStatusBarWM =
5775                 mTopFullscreenOpaqueWindowState != null &&
5776                 (PolicyControl.getWindowFlags(mTopFullscreenOpaqueWindowState, null)
5777                         & WindowManager.LayoutParams.FLAG_FULLSCREEN) != 0;
5778         boolean hideStatusBarSysui =
5779                 (vis & View.SYSTEM_UI_FLAG_FULLSCREEN) != 0;
5780         boolean hideNavBarSysui =
5781                 (vis & View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) != 0;
5782
5783         boolean transientStatusBarAllowed =
5784                 mStatusBar != null && (
5785                 hideStatusBarWM
5786                 || (hideStatusBarSysui && immersiveSticky)
5787                 || statusBarHasFocus);
5788
5789         boolean transientNavBarAllowed =
5790                 mNavigationBar != null &&
5791                 hideNavBarSysui && immersiveSticky;
5792
5793         boolean denyTransientStatus = mStatusBarController.isTransientShowRequested()
5794                 && !transientStatusBarAllowed && hideStatusBarSysui;
5795         boolean denyTransientNav = mNavigationBarController.isTransientShowRequested()
5796                 && !transientNavBarAllowed;
5797         if (denyTransientStatus || denyTransientNav) {
5798             // clear the clearable flags instead
5799             clearClearableFlagsLw();
5800         }
5801
5802         vis = mStatusBarController.updateVisibilityLw(transientStatusBarAllowed, oldVis, vis);
5803
5804         // update navigation bar
5805         boolean oldImmersiveMode = isImmersiveMode(oldVis);
5806         boolean newImmersiveMode = isImmersiveMode(vis);
5807         if (win != null && oldImmersiveMode != newImmersiveMode) {
5808             final String pkg = win.getOwningPackage();
5809             mImmersiveModeConfirmation.immersiveModeChanged(pkg, newImmersiveMode,
5810                     isUserSetupComplete());
5811         }
5812
5813         vis = mNavigationBarController.updateVisibilityLw(transientNavBarAllowed, oldVis, vis);
5814
5815         return vis;
5816     }
5817
5818     private void clearClearableFlagsLw() {
5819         int newVal = mResettingSystemUiFlags | View.SYSTEM_UI_CLEARABLE_FLAGS;
5820         if (newVal != mResettingSystemUiFlags) {
5821             mResettingSystemUiFlags = newVal;
5822             mWindowManagerFuncs.reevaluateStatusBarVisibility();
5823         }
5824     }
5825
5826     private boolean isImmersiveMode(int vis) {
5827         final int flags = View.SYSTEM_UI_FLAG_IMMERSIVE | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
5828         return mNavigationBar != null
5829                 && (vis & View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) != 0
5830                 && (vis & flags) != 0
5831                 && canHideNavigationBar();
5832     }
5833
5834     /**
5835      * @return whether the navigation or status bar can be made translucent
5836      *
5837      * This should return true unless touch exploration is not enabled or
5838      * R.boolean.config_enableTranslucentDecor is false.
5839      */
5840     private boolean areTranslucentBarsAllowed() {
5841         return mTranslucentDecorEnabled
5842                 && !mAccessibilityManager.isTouchExplorationEnabled();
5843     }
5844
5845     // Use this instead of checking config_showNavigationBar so that it can be consistently
5846     // overridden by qemu.hw.mainkeys in the emulator.
5847     @Override
5848     public boolean hasNavigationBar() {
5849         return mHasNavigationBar;
5850     }
5851
5852     @Override
5853     public void setLastInputMethodWindowLw(WindowState ime, WindowState target) {
5854         mLastInputMethodWindow = ime;
5855         mLastInputMethodTargetWindow = target;
5856     }
5857
5858     @Override
5859     public int getInputMethodWindowVisibleHeightLw() {
5860         return mDockBottom - mCurBottom;
5861     }
5862
5863     @Override
5864     public void setCurrentUserLw(int newUserId) {
5865         mCurrentUserId = newUserId;
5866         if (mKeyguardDelegate != null) {
5867             mKeyguardDelegate.setCurrentUser(newUserId);
5868         }
5869         if (mStatusBarService != null) {
5870             try {
5871                 mStatusBarService.setCurrentUser(newUserId);
5872             } catch (RemoteException e) {
5873                 // oh well
5874             }
5875         }
5876         setLastInputMethodWindowLw(null, null);
5877     }
5878
5879     @Override
5880     public boolean canMagnifyWindow(int windowType) {
5881         switch (windowType) {
5882             case WindowManager.LayoutParams.TYPE_INPUT_METHOD:
5883             case WindowManager.LayoutParams.TYPE_INPUT_METHOD_DIALOG:
5884             case WindowManager.LayoutParams.TYPE_NAVIGATION_BAR:
5885             case WindowManager.LayoutParams.TYPE_MAGNIFICATION_OVERLAY: {
5886                 return false;
5887             }
5888         }
5889         return true;
5890     }
5891
5892     @Override
5893     public boolean isTopLevelWindow(int windowType) {
5894         if (windowType >= WindowManager.LayoutParams.FIRST_SUB_WINDOW
5895                 && windowType <= WindowManager.LayoutParams.LAST_SUB_WINDOW) {
5896             return (windowType == WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG);
5897         }
5898         return true;
5899     }
5900
5901     @Override
5902     public void dump(String prefix, PrintWriter pw, String[] args) {
5903         pw.print(prefix); pw.print("mSafeMode="); pw.print(mSafeMode);
5904                 pw.print(" mSystemReady="); pw.print(mSystemReady);
5905                 pw.print(" mSystemBooted="); pw.println(mSystemBooted);
5906         pw.print(prefix); pw.print("mLidState="); pw.print(mLidState);
5907                 pw.print(" mLidOpenRotation="); pw.print(mLidOpenRotation);
5908                 pw.print(" mCameraLensCoverState="); pw.print(mCameraLensCoverState);
5909                 pw.print(" mHdmiPlugged="); pw.println(mHdmiPlugged);
5910         if (mLastSystemUiFlags != 0 || mResettingSystemUiFlags != 0
5911                 || mForceClearedSystemUiFlags != 0) {
5912             pw.print(prefix); pw.print("mLastSystemUiFlags=0x");
5913                     pw.print(Integer.toHexString(mLastSystemUiFlags));
5914                     pw.print(" mResettingSystemUiFlags=0x");
5915                     pw.print(Integer.toHexString(mResettingSystemUiFlags));
5916                     pw.print(" mForceClearedSystemUiFlags=0x");
5917                     pw.println(Integer.toHexString(mForceClearedSystemUiFlags));
5918         }
5919         if (mLastFocusNeedsMenu) {
5920             pw.print(prefix); pw.print("mLastFocusNeedsMenu=");
5921                     pw.println(mLastFocusNeedsMenu);
5922         }
5923         pw.print(prefix); pw.print("mWakeGestureEnabledSetting=");
5924                 pw.println(mWakeGestureEnabledSetting);
5925
5926         pw.print(prefix); pw.print("mSupportAutoRotation="); pw.println(mSupportAutoRotation);
5927         pw.print(prefix); pw.print("mUiMode="); pw.print(mUiMode);
5928                 pw.print(" mDockMode="); pw.print(mDockMode);
5929                 pw.print(" mCarDockRotation="); pw.print(mCarDockRotation);
5930                 pw.print(" mDeskDockRotation="); pw.println(mDeskDockRotation);
5931         pw.print(prefix); pw.print("mUserRotationMode="); pw.print(mUserRotationMode);
5932                 pw.print(" mUserRotation="); pw.print(mUserRotation);
5933                 pw.print(" mAllowAllRotations="); pw.println(mAllowAllRotations);
5934         pw.print(prefix); pw.print("mCurrentAppOrientation="); pw.println(mCurrentAppOrientation);
5935         pw.print(prefix); pw.print("mCarDockEnablesAccelerometer=");
5936                 pw.print(mCarDockEnablesAccelerometer);
5937                 pw.print(" mDeskDockEnablesAccelerometer=");
5938                 pw.println(mDeskDockEnablesAccelerometer);
5939         pw.print(prefix); pw.print("mLidKeyboardAccessibility=");
5940                 pw.print(mLidKeyboardAccessibility);
5941                 pw.print(" mLidNavigationAccessibility="); pw.print(mLidNavigationAccessibility);
5942                 pw.print(" mLidControlsSleep="); pw.println(mLidControlsSleep);
5943         pw.print(prefix);
5944                 pw.print("mShortPressOnPowerBehavior="); pw.print(mShortPressOnPowerBehavior);
5945                 pw.print(" mLongPressOnPowerBehavior="); pw.println(mLongPressOnPowerBehavior);
5946         pw.print(prefix); pw.print("mHasSoftInput="); pw.println(mHasSoftInput);
5947         pw.print(prefix); pw.print("mAwake="); pw.println(mAwake);
5948         pw.print(prefix); pw.print("mScreenOnEarly="); pw.print(mScreenOnEarly);
5949                 pw.print(" mScreenOnFully="); pw.println(mScreenOnFully);
5950         pw.print(prefix); pw.print("mKeyguardDrawComplete="); pw.print(mKeyguardDrawComplete);
5951                 pw.print(" mWindowManagerDrawComplete="); pw.println(mWindowManagerDrawComplete);
5952         pw.print(prefix); pw.print("mOrientationSensorEnabled=");
5953                 pw.println(mOrientationSensorEnabled);
5954         pw.print(prefix); pw.print("mOverscanScreen=("); pw.print(mOverscanScreenLeft);
5955                 pw.print(","); pw.print(mOverscanScreenTop);
5956                 pw.print(") "); pw.print(mOverscanScreenWidth);
5957                 pw.print("x"); pw.println(mOverscanScreenHeight);
5958         if (mOverscanLeft != 0 || mOverscanTop != 0
5959                 || mOverscanRight != 0 || mOverscanBottom != 0) {
5960             pw.print(prefix); pw.print("mOverscan left="); pw.print(mOverscanLeft);
5961                     pw.print(" top="); pw.print(mOverscanTop);
5962                     pw.print(" right="); pw.print(mOverscanRight);
5963                     pw.print(" bottom="); pw.println(mOverscanBottom);
5964         }
5965         pw.print(prefix); pw.print("mRestrictedOverscanScreen=(");
5966                 pw.print(mRestrictedOverscanScreenLeft);
5967                 pw.print(","); pw.print(mRestrictedOverscanScreenTop);
5968                 pw.print(") "); pw.print(mRestrictedOverscanScreenWidth);
5969                 pw.print("x"); pw.println(mRestrictedOverscanScreenHeight);
5970         pw.print(prefix); pw.print("mUnrestrictedScreen=("); pw.print(mUnrestrictedScreenLeft);
5971                 pw.print(","); pw.print(mUnrestrictedScreenTop);
5972                 pw.print(") "); pw.print(mUnrestrictedScreenWidth);
5973                 pw.print("x"); pw.println(mUnrestrictedScreenHeight);
5974         pw.print(prefix); pw.print("mRestrictedScreen=("); pw.print(mRestrictedScreenLeft);
5975                 pw.print(","); pw.print(mRestrictedScreenTop);
5976                 pw.print(") "); pw.print(mRestrictedScreenWidth);
5977                 pw.print("x"); pw.println(mRestrictedScreenHeight);
5978         pw.print(prefix); pw.print("mStableFullscreen=("); pw.print(mStableFullscreenLeft);
5979                 pw.print(","); pw.print(mStableFullscreenTop);
5980                 pw.print(")-("); pw.print(mStableFullscreenRight);
5981                 pw.print(","); pw.print(mStableFullscreenBottom); pw.println(")");
5982         pw.print(prefix); pw.print("mStable=("); pw.print(mStableLeft);
5983                 pw.print(","); pw.print(mStableTop);
5984                 pw.print(")-("); pw.print(mStableRight);
5985                 pw.print(","); pw.print(mStableBottom); pw.println(")");
5986         pw.print(prefix); pw.print("mSystem=("); pw.print(mSystemLeft);
5987                 pw.print(","); pw.print(mSystemTop);
5988                 pw.print(")-("); pw.print(mSystemRight);
5989                 pw.print(","); pw.print(mSystemBottom); pw.println(")");
5990         pw.print(prefix); pw.print("mCur=("); pw.print(mCurLeft);
5991                 pw.print(","); pw.print(mCurTop);
5992                 pw.print(")-("); pw.print(mCurRight);
5993                 pw.print(","); pw.print(mCurBottom); pw.println(")");
5994         pw.print(prefix); pw.print("mContent=("); pw.print(mContentLeft);
5995                 pw.print(","); pw.print(mContentTop);
5996                 pw.print(")-("); pw.print(mContentRight);
5997                 pw.print(","); pw.print(mContentBottom); pw.println(")");
5998         pw.print(prefix); pw.print("mVoiceContent=("); pw.print(mVoiceContentLeft);
5999                 pw.print(","); pw.print(mVoiceContentTop);
6000                 pw.print(")-("); pw.print(mVoiceContentRight);
6001                 pw.print(","); pw.print(mVoiceContentBottom); pw.println(")");
6002         pw.print(prefix); pw.print("mDock=("); pw.print(mDockLeft);
6003                 pw.print(","); pw.print(mDockTop);
6004                 pw.print(")-("); pw.print(mDockRight);
6005                 pw.print(","); pw.print(mDockBottom); pw.println(")");
6006         pw.print(prefix); pw.print("mDockLayer="); pw.print(mDockLayer);
6007                 pw.print(" mStatusBarLayer="); pw.println(mStatusBarLayer);
6008         pw.print(prefix); pw.print("mShowingLockscreen="); pw.print(mShowingLockscreen);
6009                 pw.print(" mShowingDream="); pw.print(mShowingDream);
6010                 pw.print(" mDreamingLockscreen="); pw.println(mDreamingLockscreen);
6011         if (mLastInputMethodWindow != null) {
6012             pw.print(prefix); pw.print("mLastInputMethodWindow=");
6013                     pw.println(mLastInputMethodWindow);
6014         }
6015         if (mLastInputMethodTargetWindow != null) {
6016             pw.print(prefix); pw.print("mLastInputMethodTargetWindow=");
6017                     pw.println(mLastInputMethodTargetWindow);
6018         }
6019         if (mStatusBar != null) {
6020             pw.print(prefix); pw.print("mStatusBar=");
6021                     pw.println(mStatusBar);
6022             pw.print(prefix); pw.print("isStatusBarKeyguard=");
6023                     pw.print(isStatusBarKeyguard());
6024         }
6025         if (mNavigationBar != null) {
6026             pw.print(prefix); pw.print("mNavigationBar=");
6027                     pw.println(mNavigationBar);
6028         }
6029         if (mFocusedWindow != null) {
6030             pw.print(prefix); pw.print("mFocusedWindow=");
6031                     pw.println(mFocusedWindow);
6032         }
6033         if (mFocusedApp != null) {
6034             pw.print(prefix); pw.print("mFocusedApp=");
6035                     pw.println(mFocusedApp);
6036         }
6037         if (mWinDismissingKeyguard != null) {
6038             pw.print(prefix); pw.print("mWinDismissingKeyguard=");
6039                     pw.println(mWinDismissingKeyguard);
6040         }
6041         if (mTopFullscreenOpaqueWindowState != null) {
6042             pw.print(prefix); pw.print("mTopFullscreenOpaqueWindowState=");
6043                     pw.println(mTopFullscreenOpaqueWindowState);
6044         }
6045         if (mForcingShowNavBar) {
6046             pw.print(prefix); pw.print("mForcingShowNavBar=");
6047                     pw.println(mForcingShowNavBar); pw.print( "mForcingShowNavBarLayer=");
6048                     pw.println(mForcingShowNavBarLayer);
6049         }
6050         pw.print(prefix); pw.print("mTopIsFullscreen="); pw.print(mTopIsFullscreen);
6051                 pw.print(" mHideLockScreen="); pw.println(mHideLockScreen);
6052         pw.print(prefix); pw.print("mForceStatusBar="); pw.print(mForceStatusBar);
6053                 pw.print(" mForceStatusBarFromKeyguard=");
6054                 pw.println(mForceStatusBarFromKeyguard);
6055         pw.print(prefix); pw.print("mDismissKeyguard="); pw.print(mDismissKeyguard);
6056                 pw.print(" mWinDismissingKeyguard="); pw.print(mWinDismissingKeyguard);
6057                 pw.print(" mHomePressed="); pw.println(mHomePressed);
6058         pw.print(prefix); pw.print("mAllowLockscreenWhenOn="); pw.print(mAllowLockscreenWhenOn);
6059                 pw.print(" mLockScreenTimeout="); pw.print(mLockScreenTimeout);
6060                 pw.print(" mLockScreenTimerActive="); pw.println(mLockScreenTimerActive);
6061         pw.print(prefix); pw.print("mEndcallBehavior="); pw.print(mEndcallBehavior);
6062                 pw.print(" mIncallPowerBehavior="); pw.print(mIncallPowerBehavior);
6063                 pw.print(" mLongPressOnHomeBehavior="); pw.println(mLongPressOnHomeBehavior);
6064         pw.print(prefix); pw.print("mLandscapeRotation="); pw.print(mLandscapeRotation);
6065                 pw.print(" mSeascapeRotation="); pw.println(mSeascapeRotation);
6066         pw.print(prefix); pw.print("mPortraitRotation="); pw.print(mPortraitRotation);
6067                 pw.print(" mUpsideDownRotation="); pw.println(mUpsideDownRotation);
6068         pw.print(prefix); pw.print("mDemoHdmiRotation="); pw.print(mDemoHdmiRotation);
6069                 pw.print(" mDemoHdmiRotationLock="); pw.println(mDemoHdmiRotationLock);
6070         pw.print(prefix); pw.print("mUndockedHdmiRotation="); pw.println(mUndockedHdmiRotation);
6071
6072         mGlobalKeyManager.dump(prefix, pw);
6073         mStatusBarController.dump(pw, prefix);
6074         mNavigationBarController.dump(pw, prefix);
6075         PolicyControl.dump(prefix, pw);
6076
6077         if (mWakeGestureListener != null) {
6078             mWakeGestureListener.dump(pw, prefix);
6079         }
6080         if (mOrientationListener != null) {
6081             mOrientationListener.dump(pw, prefix);
6082         }
6083     }
6084 }