xref: /frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

/*
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.internal.policy.impl;

import android.app.ActivityManager;
import android.app.ActivityManagerNative;
import android.app.AppOpsManager;
import android.app.IUiModeManager;
import android.app.ProgressDialog;
import android.app.SearchManager;
import android.app.UiModeManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.ServiceConnection;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.CompatibilityInfo;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.database.ContentObserver;
import android.graphics.PixelFormat;
import android.graphics.Rect;
import android.media.AudioManager;
import android.media.IAudioService;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.os.Bundle;
import android.os.FactoryTest;
import android.os.Handler;
import android.os.IBinder;
import android.os.IRemoteCallback;
import android.os.Looper;
import android.os.Message;
import android.os.Messenger;
import android.os.PowerManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.os.SystemProperties;
import android.os.UEventObserver;
import android.os.UserHandle;
import android.os.Vibrator;
import android.provider.Settings;
import android.service.dreams.DreamService;
import android.service.dreams.IDreamManager;
import android.util.DisplayMetrics;
import android.util.EventLog;
import android.util.Log;
import android.util.Slog;
import android.util.SparseArray;
import android.view.Display;
import android.view.Gravity;
import android.view.HapticFeedbackConstants;
import android.view.IApplicationToken;
import android.view.IWindowManager;
import android.view.InputChannel;
import android.view.InputDevice;
import android.view.InputEvent;
import android.view.InputEventReceiver;
import android.view.KeyCharacterMap;
import android.view.KeyCharacterMap.FallbackAction;
import android.view.KeyEvent;
import android.view.MotionEvent;
import android.view.Surface;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.Window;
import android.view.WindowManager;
import android.view.WindowManagerGlobal;
import android.view.WindowManagerPolicy;
import android.view.accessibility.AccessibilityEvent;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;

import com.android.internal.R;
import com.android.internal.policy.PolicyManager;
import com.android.internal.policy.impl.keyguard.KeyguardViewManager;
import com.android.internal.policy.impl.keyguard.KeyguardViewMediator;
import com.android.internal.statusbar.IStatusBarService;
import com.android.internal.telephony.ITelephony;
import com.android.internal.widget.PointerLocationView;

import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;

import static android.view.WindowManager.LayoutParams.*;
import static android.view.WindowManagerPolicy.WindowManagerFuncs.LID_ABSENT;
import static android.view.WindowManagerPolicy.WindowManagerFuncs.LID_OPEN;
import static android.view.WindowManagerPolicy.WindowManagerFuncs.LID_CLOSED;

/**
 * WindowManagerPolicy implementation for the Android phone UI.  This
 * introduces a new method suffix, Lp, for an internal lock of the
 * PhoneWindowManager.  This is used to protect some internal state, and
 * can be acquired with either thw Lw and Li lock held, so has the restrictions
 * of both of those when held.
 */
public class PhoneWindowManager implements WindowManagerPolicy {
    static final String TAG = "WindowManager";
    static final boolean DEBUG = false;
    static final boolean localLOGV = false;
    static final boolean DEBUG_LAYOUT = false;
    static final boolean DEBUG_INPUT = false;
    static final boolean DEBUG_STARTING_WINDOW = false;
    static final boolean SHOW_STARTING_ANIMATIONS = true;
    static final boolean SHOW_PROCESSES_ON_ALT_MENU = false;

    // Whether to allow dock apps with METADATA_DOCK_HOME to temporarily take over the Home key.
    // No longer recommended for desk docks; still useful in car docks.
    static final boolean ENABLE_CAR_DOCK_HOME_CAPTURE = true;
    static final boolean ENABLE_DESK_DOCK_HOME_CAPTURE = false;

    static final int LONG_PRESS_POWER_NOTHING = 0;
    static final int LONG_PRESS_POWER_GLOBAL_ACTIONS = 1;
    static final int LONG_PRESS_POWER_SHUT_OFF = 2;
    static final int LONG_PRESS_POWER_SHUT_OFF_NO_CONFIRM = 3;

    // These need to match the documentation/constant in
    // core/res/res/values/config.xml
    static final int LONG_PRESS_HOME_NOTHING = 0;
    static final int LONG_PRESS_HOME_RECENT_SYSTEM_UI = 1;
    static final int LONG_PRESS_HOME_ASSIST = 2;

    static final int DOUBLE_TAP_HOME_NOTHING = 0;
    static final int DOUBLE_TAP_HOME_RECENT_SYSTEM_UI = 1;

    static final int APPLICATION_MEDIA_SUBLAYER = -2;
    static final int APPLICATION_MEDIA_OVERLAY_SUBLAYER = -1;
    static final int APPLICATION_PANEL_SUBLAYER = 1;
    static final int APPLICATION_SUB_PANEL_SUBLAYER = 2;

    static public final String SYSTEM_DIALOG_REASON_KEY = "reason";
    static public final String SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS = "globalactions";
    static public final String SYSTEM_DIALOG_REASON_RECENT_APPS = "recentapps";
    static public final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
    static public final String SYSTEM_DIALOG_REASON_ASSIST = "assist";

    /**
     * These are the system UI flags that, when changing, can cause the layout
     * of the screen to change.
     */
    static final int SYSTEM_UI_CHANGING_LAYOUT =
            View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN;

    /* Table of Application Launch keys.  Maps from key codes to intent categories.
     *
     * These are special keys that are used to launch particular kinds of applications,
     * such as a web browser.  HID defines nearly a hundred of them in the Consumer (0x0C)
     * usage page.  We don't support quite that many yet...
     */
    static SparseArray<String> sApplicationLaunchKeyCategories;
    static {
        sApplicationLaunchKeyCategories = new SparseArray<String>();
        sApplicationLaunchKeyCategories.append(
                KeyEvent.KEYCODE_EXPLORER, Intent.CATEGORY_APP_BROWSER);
        sApplicationLaunchKeyCategories.append(
                KeyEvent.KEYCODE_ENVELOPE, Intent.CATEGORY_APP_EMAIL);
        sApplicationLaunchKeyCategories.append(
                KeyEvent.KEYCODE_CONTACTS, Intent.CATEGORY_APP_CONTACTS);
        sApplicationLaunchKeyCategories.append(
                KeyEvent.KEYCODE_CALENDAR, Intent.CATEGORY_APP_CALENDAR);
        sApplicationLaunchKeyCategories.append(
                KeyEvent.KEYCODE_MUSIC, Intent.CATEGORY_APP_MUSIC);
        sApplicationLaunchKeyCategories.append(
                KeyEvent.KEYCODE_CALCULATOR, Intent.CATEGORY_APP_CALCULATOR);
    }

    /**
     * Lock protecting internal state.  Must not call out into window
     * manager with lock held.  (This lock will be acquired in places
     * where the window manager is calling in with its own lock held.)
     */
    private final Object mLock = new Object();

    Context mContext;
    IWindowManager mWindowManager;
    WindowManagerFuncs mWindowManagerFuncs;
    PowerManager mPowerManager;
    IStatusBarService mStatusBarService;
    boolean mPreloadedRecentApps;
    final Object mServiceAquireLock = new Object();
    Vibrator mVibrator; // Vibrator for giving feedback of orientation changes
    SearchManager mSearchManager;

    // Vibrator pattern for haptic feedback of a long press.
    long[] mLongPressVibePattern;

    // Vibrator pattern for haptic feedback of virtual key press.
    long[] mVirtualKeyVibePattern;

    // Vibrator pattern for a short vibration.
    long[] mKeyboardTapVibePattern;

    // Vibrator pattern for haptic feedback during boot when safe mode is disabled.
    long[] mSafeModeDisabledVibePattern;

    // Vibrator pattern for haptic feedback during boot when safe mode is enabled.
    long[] mSafeModeEnabledVibePattern;

    /** If true, hitting shift & menu will broadcast Intent.ACTION_BUG_REPORT */
    boolean mEnableShiftMenuBugReports = false;

    boolean mHeadless;
    boolean mSafeMode;
    WindowState mStatusBar = null;
    boolean mHasSystemNavBar;
    int mStatusBarHeight;
    WindowState mNavigationBar = null;
    boolean mHasNavigationBar = false;
    boolean mCanHideNavigationBar = false;
    boolean mNavigationBarCanMove = false; // can the navigation bar ever move to the side?
    boolean mNavigationBarOnBottom = true; // is the navigation bar on the bottom *right now*?
    int[] mNavigationBarHeightForRotation = new int[4];
    int[] mNavigationBarWidthForRotation = new int[4];

    WindowState mKeyguard = null;
    KeyguardViewMediator mKeyguardMediator;
    GlobalActions mGlobalActions;
    volatile boolean mPowerKeyHandled; // accessed from input reader and handler thread
    boolean mPendingPowerKeyUpCanceled;
    Handler mHandler;
    WindowState mLastInputMethodWindow = null;
    WindowState mLastInputMethodTargetWindow = null;

    static final int RECENT_APPS_BEHAVIOR_SHOW_OR_DISMISS = 0;
    static final int RECENT_APPS_BEHAVIOR_EXIT_TOUCH_MODE_AND_SHOW = 1;
    static final int RECENT_APPS_BEHAVIOR_DISMISS = 2;
    static final int RECENT_APPS_BEHAVIOR_DISMISS_AND_SWITCH = 3;

    RecentApplicationsDialog mRecentAppsDialog;
    int mRecentAppsDialogHeldModifiers;
    boolean mLanguageSwitchKeyPressed;

    int mLidState = LID_ABSENT;
    boolean mHaveBuiltInKeyboard;

    boolean mSystemReady;
    boolean mSystemBooted;
    boolean mHdmiPlugged;
    int mUiMode;
    int mDockMode = Intent.EXTRA_DOCK_STATE_UNDOCKED;
    int mLidOpenRotation;
    int mCarDockRotation;
    int mDeskDockRotation;
    int mUndockedHdmiRotation;
    int mDemoHdmiRotation;
    boolean mDemoHdmiRotationLock;

    int mUserRotationMode = WindowManagerPolicy.USER_ROTATION_FREE;
    int mUserRotation = Surface.ROTATION_0;
    boolean mAccelerometerDefault;

    int mAllowAllRotations = -1;
    boolean mCarDockEnablesAccelerometer;
    boolean mDeskDockEnablesAccelerometer;
    int mLidKeyboardAccessibility;
    int mLidNavigationAccessibility;
    boolean mLidControlsSleep;
    int mLongPressOnPowerBehavior = -1;
    boolean mScreenOnEarly = false;
    boolean mScreenOnFully = false;
    boolean mOrientationSensorEnabled = false;
    int mCurrentAppOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
    boolean mHasSoftInput = false;

    int mPointerLocationMode = 0; // guarded by mLock

    // The last window we were told about in focusChanged.
    WindowState mFocusedWindow;
    IApplicationToken mFocusedApp;

    private static final class PointerLocationInputEventReceiver extends InputEventReceiver {
        private final PointerLocationView mView;

        public PointerLocationInputEventReceiver(InputChannel inputChannel, Looper looper,
                PointerLocationView view) {
            super(inputChannel, looper);
            mView = view;
        }

        @Override
        public void onInputEvent(InputEvent event) {
            boolean handled = false;
            try {
                if (event instanceof MotionEvent
                        && (event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
                    final MotionEvent motionEvent = (MotionEvent)event;
                    mView.addPointerEvent(motionEvent);
                    handled = true;
                }
            } finally {
                finishInputEvent(event, handled);
            }
        }
    }

    // Pointer location view state, only modified on the mHandler Looper.
    PointerLocationInputEventReceiver mPointerLocationInputEventReceiver;
    PointerLocationView mPointerLocationView;
    InputChannel mPointerLocationInputChannel;

    // The current size of the screen; really; extends into the overscan area of
    // the screen and doesn't account for any system elements like the status bar.
    int mOverscanScreenLeft, mOverscanScreenTop;
    int mOverscanScreenWidth, mOverscanScreenHeight;
    // The current visible size of the screen; really; (ir)regardless of whether the status
    // bar can be hidden but not extending into the overscan area.
    int mUnrestrictedScreenLeft, mUnrestrictedScreenTop;
    int mUnrestrictedScreenWidth, mUnrestrictedScreenHeight;
    // Like mOverscanScreen*, but allowed to move into the overscan region where appropriate.
    int mRestrictedOverscanScreenLeft, mRestrictedOverscanScreenTop;
    int mRestrictedOverscanScreenWidth, mRestrictedOverscanScreenHeight;
    // The current size of the screen; these may be different than (0,0)-(dw,dh)
    // if the status bar can't be hidden; in that case it effectively carves out
    // that area of the display from all other windows.
    int mRestrictedScreenLeft, mRestrictedScreenTop;
    int mRestrictedScreenWidth, mRestrictedScreenHeight;
    // During layout, the current screen borders accounting for any currently
    // visible system UI elements.
    int mSystemLeft, mSystemTop, mSystemRight, mSystemBottom;
    // For applications requesting stable content insets, these are them.
    int mStableLeft, mStableTop, mStableRight, mStableBottom;
    // For applications requesting stable content insets but have also set the
    // fullscreen window flag, these are the stable dimensions without the status bar.
    int mStableFullscreenLeft, mStableFullscreenTop;
    int mStableFullscreenRight, mStableFullscreenBottom;
    // During layout, the current screen borders with all outer decoration
    // (status bar, input method dock) accounted for.
    int mCurLeft, mCurTop, mCurRight, mCurBottom;
    // During layout, the frame in which content should be displayed
    // to the user, accounting for all screen decoration except for any
    // space they deem as available for other content.  This is usually
    // the same as mCur*, but may be larger if the screen decor has supplied
    // content insets.
    int mContentLeft, mContentTop, mContentRight, mContentBottom;
    // During layout, the current screen borders along which input method
    // windows are placed.
    int mDockLeft, mDockTop, mDockRight, mDockBottom;
    // During layout, the layer at which the doc window is placed.
    int mDockLayer;
    // During layout, this is the layer of the status bar.
    int mStatusBarLayer;
    int mLastSystemUiFlags;
    // Bits that we are in the process of clearing, so we want to prevent
    // them from being set by applications until everything has been updated
    // to have them clear.
    int mResettingSystemUiFlags = 0;
    // Bits that we are currently always keeping cleared.
    int mForceClearedSystemUiFlags = 0;
    // What we last reported to system UI about whether the compatibility
    // menu needs to be displayed.
    boolean mLastFocusNeedsMenu = false;

    FakeWindow mHideNavFakeWindow = null;

    static final Rect mTmpParentFrame = new Rect();
    static final Rect mTmpDisplayFrame = new Rect();
    static final Rect mTmpOverscanFrame = new Rect();
    static final Rect mTmpContentFrame = new Rect();
    static final Rect mTmpVisibleFrame = new Rect();
    static final Rect mTmpNavigationFrame = new Rect();

    WindowState mTopFullscreenOpaqueWindowState;
    boolean mTopIsFullscreen;
    boolean mForceStatusBar;
    boolean mForceStatusBarFromKeyguard;
    boolean mHideLockScreen;
    boolean mForcingShowNavBar;
    int mForcingShowNavBarLayer;

    // States of keyguard dismiss.
    private static final int DISMISS_KEYGUARD_NONE = 0; // Keyguard not being dismissed.
    private static final int DISMISS_KEYGUARD_START = 1; // Keyguard needs to be dismissed.
    private static final int DISMISS_KEYGUARD_CONTINUE = 2; // Keyguard has been dismissed.
    int mDismissKeyguard = DISMISS_KEYGUARD_NONE;

    /** The window that is currently dismissing the keyguard. Dismissing the keyguard must only
     * be done once per window. */
    private WindowState mWinDismissingKeyguard;

    boolean mShowingLockscreen;
    boolean mShowingDream;
    boolean mDreamingLockscreen;
    boolean mHomePressed;
    boolean mHomeConsumed;
    boolean mHomeDoubleTapPending;
    Intent mHomeIntent;
    Intent mCarDockIntent;
    Intent mDeskDockIntent;
    boolean mSearchKeyShortcutPending;
    boolean mConsumeSearchKeyUp;
    boolean mAssistKeyLongPressed;

    // support for activating the lock screen while the screen is on
    boolean mAllowLockscreenWhenOn;
    int mLockScreenTimeout;
    boolean mLockScreenTimerActive;

    // Behavior of ENDCALL Button.  (See Settings.System.END_BUTTON_BEHAVIOR.)
    int mEndcallBehavior;

    // Behavior of POWER button while in-call and screen on.
    // (See Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR.)
    int mIncallPowerBehavior;

    Display mDisplay;

    int mLandscapeRotation = 0;  // default landscape rotation
    int mSeascapeRotation = 0;   // "other" landscape rotation, 180 degrees from mLandscapeRotation
    int mPortraitRotation = 0;   // default portrait rotation
    int mUpsideDownRotation = 0; // "other" portrait rotation

    int mOverscanLeft = 0;
    int mOverscanTop = 0;
    int mOverscanRight = 0;
    int mOverscanBottom = 0;

    // What we do when the user long presses on home
    private int mLongPressOnHomeBehavior;

    // What we do when the user double-taps on home
    private int mDoubleTapOnHomeBehavior;

    // Screenshot trigger states
    // Time to volume and power must be pressed within this interval of each other.
    private static final long SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS = 150;
    // Increase the chord delay when taking a screenshot from the keyguard
    private static final float KEYGUARD_SCREENSHOT_CHORD_DELAY_MULTIPLIER = 2.5f;
    private boolean mScreenshotChordEnabled;
    private boolean mVolumeDownKeyTriggered;
    private long mVolumeDownKeyTime;
    private boolean mVolumeDownKeyConsumedByScreenshotChord;
    private boolean mVolumeUpKeyTriggered;
    private boolean mPowerKeyTriggered;
    private long mPowerKeyTime;

    SettingsObserver mSettingsObserver;
    ShortcutManager mShortcutManager;
    PowerManager.WakeLock mBroadcastWakeLock;
    boolean mHavePendingMediaKeyRepeatWithWakeLock;

    // Maps global key codes to the components that will handle them.
    private GlobalKeyManager mGlobalKeyManager;

    // Fallback actions by key code.
    private final SparseArray<KeyCharacterMap.FallbackAction> mFallbackActions =
            new SparseArray<KeyCharacterMap.FallbackAction>();

    private static final int MSG_ENABLE_POINTER_LOCATION = 1;
    private static final int MSG_DISABLE_POINTER_LOCATION = 2;
    private static final int MSG_DISPATCH_MEDIA_KEY_WITH_WAKE_LOCK = 3;
    private static final int MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK = 4;

    private class PolicyHandler extends Handler {
        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case MSG_ENABLE_POINTER_LOCATION:
                    enablePointerLocation();
                    break;
                case MSG_DISABLE_POINTER_LOCATION:
                    disablePointerLocation();
                    break;
                case MSG_DISPATCH_MEDIA_KEY_WITH_WAKE_LOCK:
                    dispatchMediaKeyWithWakeLock((KeyEvent)msg.obj);
                    break;
                case MSG_DISPATCH_MEDIA_KEY_REPEAT_WITH_WAKE_LOCK:
                    dispatchMediaKeyRepeatWithWakeLock((KeyEvent)msg.obj);
                    break;
            }
        }
    }

    private UEventObserver mHDMIObserver = new UEventObserver() {
        @Override
        public void onUEvent(UEventObserver.UEvent event) {
            setHdmiPlugged("1".equals(event.get("SWITCH_STATE")));
        }
    };

    class SettingsObserver extends ContentObserver {
        SettingsObserver(Handler handler) {
            super(handler);
        }

        void observe() {
            // Observe all users' changes
            ContentResolver resolver = mContext.getContentResolver();
            resolver.registerContentObserver(Settings.System.getUriFor(
                    Settings.System.END_BUTTON_BEHAVIOR), false, this,
                    UserHandle.USER_ALL);
            resolver.registerContentObserver(Settings.Secure.getUriFor(
                    Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR), false, this,
                    UserHandle.USER_ALL);
            resolver.registerContentObserver(Settings.System.getUriFor(
                    Settings.System.ACCELEROMETER_ROTATION), false, this,
                    UserHandle.USER_ALL);
            resolver.registerContentObserver(Settings.System.getUriFor(
                    Settings.System.USER_ROTATION), false, this,
                    UserHandle.USER_ALL);
            resolver.registerContentObserver(Settings.System.getUriFor(
                    Settings.System.SCREEN_OFF_TIMEOUT), false, this,
                    UserHandle.USER_ALL);
            resolver.registerContentObserver(Settings.System.getUriFor(
                    Settings.System.POINTER_LOCATION), false, this,
                    UserHandle.USER_ALL);
            resolver.registerContentObserver(Settings.Secure.getUriFor(
                    Settings.Secure.DEFAULT_INPUT_METHOD), false, this,
                    UserHandle.USER_ALL);
            resolver.registerContentObserver(Settings.System.getUriFor(
                    "fancy_rotation_anim"), false, this,
                    UserHandle.USER_ALL);
            updateSettings();
        }

        @Override public void onChange(boolean selfChange) {
            updateSettings();
            updateRotation(false);
        }
    }

    class MyOrientationListener extends WindowOrientationListener {
        MyOrientationListener(Context context, Handler handler) {
            super(context, handler);
        }

        @Override
        public void onProposedRotationChanged(int rotation) {
            if (localLOGV) Log.v(TAG, "onProposedRotationChanged, rotation=" + rotation);
            updateRotation(false);
        }
    }
    MyOrientationListener mOrientationListener;

    IStatusBarService getStatusBarService() {
        synchronized (mServiceAquireLock) {
            if (mStatusBarService == null) {
                mStatusBarService = IStatusBarService.Stub.asInterface(
                        ServiceManager.getService("statusbar"));
            }
            return mStatusBarService;
        }
    }

    /*
     * We always let the sensor be switched on by default except when
     * the user has explicitly disabled sensor based rotation or when the
     * screen is switched off.
     */
    boolean needSensorRunningLp() {
        if (mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR
                || mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR
                || mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT
                || mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE) {
            // If the application has explicitly requested to follow the
            // orientation, then we need to turn the sensor or.
            return true;
        }
        if ((mCarDockEnablesAccelerometer && mDockMode == Intent.EXTRA_DOCK_STATE_CAR) ||
                (mDeskDockEnablesAccelerometer && (mDockMode == Intent.EXTRA_DOCK_STATE_DESK
                        || mDockMode == Intent.EXTRA_DOCK_STATE_LE_DESK
                        || mDockMode == Intent.EXTRA_DOCK_STATE_HE_DESK))) {
            // enable accelerometer if we are docked in a dock that enables accelerometer
            // orientation management,
            return true;
        }
        if (mUserRotationMode == USER_ROTATION_LOCKED) {
            // If the setting for using the sensor by default is enabled, then
            // we will always leave it on.  Note that the user could go to
            // a window that forces an orientation that does not use the
            // sensor and in theory we could turn it off... however, when next
            // turning it on we won't have a good value for the current
            // orientation for a little bit, which can cause orientation
            // changes to lag, so we'd like to keep it always on.  (It will
            // still be turned off when the screen is off.)
            return false;
        }
        return true;
    }

    /*
     * Various use cases for invoking this function
     * screen turning off, should always disable listeners if already enabled
     * screen turned on and current app has sensor based orientation, enable listeners
     * if not already enabled
     * screen turned on and current app does not have sensor orientation, disable listeners if
     * already enabled
     * screen turning on and current app has sensor based orientation, enable listeners if needed
     * screen turning on and current app has nosensor based orientation, do nothing
     */
    void updateOrientationListenerLp() {
        if (!mOrientationListener.canDetectOrientation()) {
            // If sensor is turned off or nonexistent for some reason
            return;
        }
        //Could have been invoked due to screen turning on or off or
        //change of the currently visible window's orientation
        if (localLOGV) Log.v(TAG, "Screen status="+mScreenOnEarly+
                ", current orientation="+mCurrentAppOrientation+
                ", SensorEnabled="+mOrientationSensorEnabled);
        boolean disable = true;
        if (mScreenOnEarly) {
            if (needSensorRunningLp()) {
                disable = false;
                //enable listener if not already enabled
                if (!mOrientationSensorEnabled) {
                    mOrientationListener.enable();
                    if(localLOGV) Log.v(TAG, "Enabling listeners");
                    mOrientationSensorEnabled = true;
                }
            }
        }
        //check if sensors need to be disabled
        if (disable && mOrientationSensorEnabled) {
            mOrientationListener.disable();
            if(localLOGV) Log.v(TAG, "Disabling listeners");
            mOrientationSensorEnabled = false;
        }
    }

    private void interceptPowerKeyDown(boolean handled) {
        mPowerKeyHandled = handled;
        if (!handled) {
            mHandler.postDelayed(mPowerLongPress, ViewConfiguration.getGlobalActionKeyTimeout());
        }
    }

    private boolean interceptPowerKeyUp(boolean canceled) {
        if (!mPowerKeyHandled) {
            mHandler.removeCallbacks(mPowerLongPress);
            return !canceled;
        }
        return false;
    }

    private void cancelPendingPowerKeyAction() {
        if (!mPowerKeyHandled) {
            mHandler.removeCallbacks(mPowerLongPress);
        }
        if (mPowerKeyTriggered) {
            mPendingPowerKeyUpCanceled = true;
        }
    }

    private void interceptScreenshotChord() {
        if (mScreenshotChordEnabled
                && mVolumeDownKeyTriggered && mPowerKeyTriggered && !mVolumeUpKeyTriggered) {
            final long now = SystemClock.uptimeMillis();
            if (now <= mVolumeDownKeyTime + SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS
                    && now <= mPowerKeyTime + SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS) {
                mVolumeDownKeyConsumedByScreenshotChord = true;
                cancelPendingPowerKeyAction();

                mHandler.postDelayed(mScreenshotRunnable, getScreenshotChordLongPressDelay());
            }
        }
    }

    private long getScreenshotChordLongPressDelay() {
        if (mKeyguardMediator.isShowing()) {
            // Double the time it takes to take a screenshot from the keyguard
            return (long) (KEYGUARD_SCREENSHOT_CHORD_DELAY_MULTIPLIER *
                    ViewConfiguration.getGlobalActionKeyTimeout());
        }
        return ViewConfiguration.getGlobalActionKeyTimeout();
    }

    private void cancelPendingScreenshotChordAction() {
        mHandler.removeCallbacks(mScreenshotRunnable);
    }

    private final Runnable mPowerLongPress = new Runnable() {
        @Override
        public void run() {
            // The context isn't read
            if (mLongPressOnPowerBehavior < 0) {
                mLongPressOnPowerBehavior = mContext.getResources().getInteger(
                        com.android.internal.R.integer.config_longPressOnPowerBehavior);
            }
            int resolvedBehavior = mLongPressOnPowerBehavior;
            if (FactoryTest.isLongPressOnPowerOffEnabled()) {
                resolvedBehavior = LONG_PRESS_POWER_SHUT_OFF_NO_CONFIRM;
            }

            switch (resolvedBehavior) {
            case LONG_PRESS_POWER_NOTHING:
                break;
            case LONG_PRESS_POWER_GLOBAL_ACTIONS:
                mPowerKeyHandled = true;
                if (!performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false)) {
                    performAuditoryFeedbackForAccessibilityIfNeed();
                }
                sendCloseSystemWindows(SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS);
                showGlobalActionsDialog();
                break;
            case LONG_PRESS_POWER_SHUT_OFF:
            case LONG_PRESS_POWER_SHUT_OFF_NO_CONFIRM:
                mPowerKeyHandled = true;
                performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false);
                sendCloseSystemWindows(SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS);
                mWindowManagerFuncs.shutdown(resolvedBehavior == LONG_PRESS_POWER_SHUT_OFF);
                break;
            }
        }
    };

    private final Runnable mScreenshotRunnable = new Runnable() {
        @Override
        public void run() {
            takeScreenshot();
        }
    };

    void showGlobalActionsDialog() {
        if (mGlobalActions == null) {
            mGlobalActions = new GlobalActions(mContext, mWindowManagerFuncs);
        }
        final boolean keyguardShowing = keyguardIsShowingTq();
        mGlobalActions.showDialog(keyguardShowing, isDeviceProvisioned());
        if (keyguardShowing) {
            // since it took two seconds of long press to bring this up,
            // poke the wake lock so they have some time to see the dialog.
            mKeyguardMediator.userActivity();
        }
    }

    boolean isDeviceProvisioned() {
        return Settings.Global.getInt(
                mContext.getContentResolver(), Settings.Global.DEVICE_PROVISIONED, 0) != 0;
    }

    private void handleLongPressOnHome() {
        if (mLongPressOnHomeBehavior != LONG_PRESS_HOME_NOTHING) {
            mHomeConsumed = true;
            performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false);

            if (mLongPressOnHomeBehavior == LONG_PRESS_HOME_RECENT_SYSTEM_UI) {
                toggleRecentApps();
            } else if (mLongPressOnHomeBehavior == LONG_PRESS_HOME_ASSIST) {
                launchAssistAction();
            }
        }
    }

    private void handleDoubleTapOnHome() {
        if (mDoubleTapOnHomeBehavior == DOUBLE_TAP_HOME_RECENT_SYSTEM_UI) {
            mHomeConsumed = true;
            toggleRecentApps();
        }
    }

    private final Runnable mHomeDoubleTapTimeoutRunnable = new Runnable() {
        @Override
        public void run() {
            if (mHomeDoubleTapPending) {
                mHomeDoubleTapPending = false;
                launchHomeFromHotKey();
            }
        }
    };

    /**
     * Create (if necessary) and show or dismiss the recent apps dialog according
     * according to the requested behavior.
     */
    void showOrHideRecentAppsDialog(final int behavior) {
        mHandler.post(new Runnable() {
            @Override
            public void run() {
                if (mRecentAppsDialog == null) {
                    mRecentAppsDialog = new RecentApplicationsDialog(mContext);
                }
                if (mRecentAppsDialog.isShowing()) {
                    switch (behavior) {
                        case RECENT_APPS_BEHAVIOR_SHOW_OR_DISMISS:
                        case RECENT_APPS_BEHAVIOR_DISMISS:
                            mRecentAppsDialog.dismiss();
                            break;
                        case RECENT_APPS_BEHAVIOR_DISMISS_AND_SWITCH:
                            mRecentAppsDialog.dismissAndSwitch();
                            break;
                        case RECENT_APPS_BEHAVIOR_EXIT_TOUCH_MODE_AND_SHOW:
                        default:
                            break;
                    }
                } else {
                    switch (behavior) {
                        case RECENT_APPS_BEHAVIOR_SHOW_OR_DISMISS:
                            mRecentAppsDialog.show();
                            break;
                        case RECENT_APPS_BEHAVIOR_EXIT_TOUCH_MODE_AND_SHOW:
                            try {
                                mWindowManager.setInTouchMode(false);
                            } catch (RemoteException e) {
                            }
                            mRecentAppsDialog.show();
                            break;
                        case RECENT_APPS_BEHAVIOR_DISMISS:
                        case RECENT_APPS_BEHAVIOR_DISMISS_AND_SWITCH:
                        default:
                            break;
                    }
                }
            }
        });
    }

    /** {@inheritDoc} */
    @Override
    public void init(Context context, IWindowManager windowManager,
            WindowManagerFuncs windowManagerFuncs) {
        mContext = context;
        mWindowManager = windowManager;
        mWindowManagerFuncs = windowManagerFuncs;
        mHeadless = "1".equals(SystemProperties.get("ro.config.headless", "0"));
        if (!mHeadless) {
            // don't create KeyguardViewMediator if headless
            mKeyguardMediator = new KeyguardViewMediator(context, null);
        }
        mHandler = new PolicyHandler();
        mOrientationListener = new MyOrientationListener(mContext, mHandler);
        try {
            mOrientationListener.setCurrentRotation(windowManager.getRotation());
        } catch (RemoteException ex) { }
        mSettingsObserver = new SettingsObserver(mHandler);
        mSettingsObserver.observe();
        mShortcutManager = new ShortcutManager(context, mHandler);
        mShortcutManager.observe();
        mUiMode = context.getResources().getInteger(
                com.android.internal.R.integer.config_defaultUiModeType);
        mHomeIntent =  new Intent(Intent.ACTION_MAIN, null);
        mHomeIntent.addCategory(Intent.CATEGORY_HOME);
        mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
        mCarDockIntent =  new Intent(Intent.ACTION_MAIN, null);
        mCarDockIntent.addCategory(Intent.CATEGORY_CAR_DOCK);
        mCarDockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
        mDeskDockIntent =  new Intent(Intent.ACTION_MAIN, null);
        mDeskDockIntent.addCategory(Intent.CATEGORY_DESK_DOCK);
        mDeskDockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);

        mPowerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
        mBroadcastWakeLock = mPowerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
                "PhoneWindowManager.mBroadcastWakeLock");
        mEnableShiftMenuBugReports = "1".equals(SystemProperties.get("ro.debuggable"));
        mLidOpenRotation = readRotation(
                com.android.internal.R.integer.config_lidOpenRotation);
        mCarDockRotation = readRotation(
                com.android.internal.R.integer.config_carDockRotation);
        mDeskDockRotation = readRotation(
                com.android.internal.R.integer.config_deskDockRotation);
        mUndockedHdmiRotation = readRotation(
                com.android.internal.R.integer.config_undockedHdmiRotation);
        mCarDockEnablesAccelerometer = mContext.getResources().getBoolean(
                com.android.internal.R.bool.config_carDockEnablesAccelerometer);
        mDeskDockEnablesAccelerometer = mContext.getResources().getBoolean(
                com.android.internal.R.bool.config_deskDockEnablesAccelerometer);
        mLidKeyboardAccessibility = mContext.getResources().getInteger(
                com.android.internal.R.integer.config_lidKeyboardAccessibility);
        mLidNavigationAccessibility = mContext.getResources().getInteger(
                com.android.internal.R.integer.config_lidNavigationAccessibility);
        mLidControlsSleep = mContext.getResources().getBoolean(
                com.android.internal.R.bool.config_lidControlsSleep);
        readConfigurationDependentBehaviors();

        // register for dock events
        IntentFilter filter = new IntentFilter();
        filter.addAction(UiModeManager.ACTION_ENTER_CAR_MODE);
        filter.addAction(UiModeManager.ACTION_EXIT_CAR_MODE);
        filter.addAction(UiModeManager.ACTION_ENTER_DESK_MODE);
        filter.addAction(UiModeManager.ACTION_EXIT_DESK_MODE);
        filter.addAction(Intent.ACTION_DOCK_EVENT);
        Intent intent = context.registerReceiver(mDockReceiver, filter);
        if (intent != null) {
            // Retrieve current sticky dock event broadcast.
            mDockMode = intent.getIntExtra(Intent.EXTRA_DOCK_STATE,
                    Intent.EXTRA_DOCK_STATE_UNDOCKED);
        }

        // register for dream-related broadcasts
        filter = new IntentFilter();
        filter.addAction(Intent.ACTION_DREAMING_STARTED);
        filter.addAction(Intent.ACTION_DREAMING_STOPPED);
        context.registerReceiver(mDreamReceiver, filter);

        // register for multiuser-relevant broadcasts
        filter = new IntentFilter(Intent.ACTION_USER_SWITCHED);
        context.registerReceiver(mMultiuserReceiver, filter);

        mVibrator = (Vibrator)context.getSystemService(Context.VIBRATOR_SERVICE);
        mLongPressVibePattern = getLongIntArray(mContext.getResources(),
                com.android.internal.R.array.config_longPressVibePattern);
        mVirtualKeyVibePattern = getLongIntArray(mContext.getResources(),
                com.android.internal.R.array.config_virtualKeyVibePattern);
        mKeyboardTapVibePattern = getLongIntArray(mContext.getResources(),
                com.android.internal.R.array.config_keyboardTapVibePattern);
        mSafeModeDisabledVibePattern = getLongIntArray(mContext.getResources(),
                com.android.internal.R.array.config_safeModeDisabledVibePattern);
        mSafeModeEnabledVibePattern = getLongIntArray(mContext.getResources(),
                com.android.internal.R.array.config_safeModeEnabledVibePattern);

        mScreenshotChordEnabled = mContext.getResources().getBoolean(
                com.android.internal.R.bool.config_enableScreenshotChord);

        mGlobalKeyManager = new GlobalKeyManager(mContext);

        // Controls rotation and the like.
        initializeHdmiState();

        // Match current screen state.
        if (mPowerManager.isScreenOn()) {
            screenTurningOn(null);
        } else {
            screenTurnedOff(WindowManagerPolicy.OFF_BECAUSE_OF_USER);
        }
    }

    /**
     * Read values from config.xml that may be overridden depending on
     * the configuration of the device.
     * eg. Disable long press on home goes to recents on sw600dp.
     */
    private void readConfigurationDependentBehaviors() {
        mLongPressOnHomeBehavior = mContext.getResources().getInteger(
                com.android.internal.R.integer.config_longPressOnHomeBehavior);
        if (mLongPressOnHomeBehavior < LONG_PRESS_HOME_NOTHING ||
                mLongPressOnHomeBehavior > LONG_PRESS_HOME_ASSIST) {
            mLongPressOnHomeBehavior = LONG_PRESS_HOME_NOTHING;
        }

        mDoubleTapOnHomeBehavior = mContext.getResources().getInteger(
                com.android.internal.R.integer.config_doubleTapOnHomeBehavior);
        if (mDoubleTapOnHomeBehavior < DOUBLE_TAP_HOME_NOTHING ||
                mDoubleTapOnHomeBehavior > DOUBLE_TAP_HOME_RECENT_SYSTEM_UI) {
            mDoubleTapOnHomeBehavior = LONG_PRESS_HOME_NOTHING;
        }
    }

    @Override
    public void setInitialDisplaySize(Display display, int width, int height, int density) {
        if (display.getDisplayId() != Display.DEFAULT_DISPLAY) {
            throw new IllegalArgumentException("Can only set the default display");
        }
        mDisplay = display;

        int shortSize, longSize;
        if (width > height) {
            shortSize = height;
            longSize = width;
            mLandscapeRotation = Surface.ROTATION_0;
            mSeascapeRotation = Surface.ROTATION_180;
            if (mContext.getResources().getBoolean(
                    com.android.internal.R.bool.config_reverseDefaultRotation)) {
                mPortraitRotation = Surface.ROTATION_90;
                mUpsideDownRotation = Surface.ROTATION_270;
            } else {
                mPortraitRotation = Surface.ROTATION_270;
                mUpsideDownRotation = Surface.ROTATION_90;
            }
        } else {
            shortSize = width;
            longSize = height;
            mPortraitRotation = Surface.ROTATION_0;
            mUpsideDownRotation = Surface.ROTATION_180;
            if (mContext.getResources().getBoolean(
                    com.android.internal.R.bool.config_reverseDefaultRotation)) {
                mLandscapeRotation = Surface.ROTATION_270;
                mSeascapeRotation = Surface.ROTATION_90;
            } else {
                mLandscapeRotation = Surface.ROTATION_90;
                mSeascapeRotation = Surface.ROTATION_270;
            }
        }

        mStatusBarHeight = mContext.getResources().getDimensionPixelSize(
                com.android.internal.R.dimen.status_bar_height);

        // Height of the navigation bar when presented horizontally at bottom
        mNavigationBarHeightForRotation[mPortraitRotation] =
        mNavigationBarHeightForRotation[mUpsideDownRotation] =
                mContext.getResources().getDimensionPixelSize(
                        com.android.internal.R.dimen.navigation_bar_height);
        mNavigationBarHeightForRotation[mLandscapeRotation] =
        mNavigationBarHeightForRotation[mSeascapeRotation] =
                mContext.getResources().getDimensionPixelSize(
                        com.android.internal.R.dimen.navigation_bar_height_landscape);

        // Width of the navigation bar when presented vertically along one side
        mNavigationBarWidthForRotation[mPortraitRotation] =
        mNavigationBarWidthForRotation[mUpsideDownRotation] =
        mNavigationBarWidthForRotation[mLandscapeRotation] =
        mNavigationBarWidthForRotation[mSeascapeRotation] =
                mContext.getResources().getDimensionPixelSize(
                        com.android.internal.R.dimen.navigation_bar_width);

        // SystemUI (status bar) layout policy
        int shortSizeDp = shortSize * DisplayMetrics.DENSITY_DEFAULT / density;

        if (shortSizeDp < 600) {
            // 0-599dp: "phone" UI with a separate status & navigation bar
            mHasSystemNavBar = false;
            mNavigationBarCanMove = true;
        } else if (shortSizeDp < 720) {
            // 600+dp: "phone" UI with modifications for larger screens
            mHasSystemNavBar = false;
            mNavigationBarCanMove = false;
        }

        if (!mHasSystemNavBar) {
            mHasNavigationBar = mContext.getResources().getBoolean(
                    com.android.internal.R.bool.config_showNavigationBar);
            // Allow a system property to override this. Used by the emulator.
            // See also hasNavigationBar().
            String navBarOverride = SystemProperties.get("qemu.hw.mainkeys");
            if (! "".equals(navBarOverride)) {
                if      (navBarOverride.equals("1")) mHasNavigationBar = false;
                else if (navBarOverride.equals("0")) mHasNavigationBar = true;
            }
        } else {
            mHasNavigationBar = false;
        }

        if (mHasSystemNavBar) {
            // The system bar is always at the bottom.  If you are watching
            // a video in landscape, we don't need to hide it if we can still
            // show a 16:9 aspect ratio with it.
            int longSizeDp = longSize * DisplayMetrics.DENSITY_DEFAULT / density;
            int barHeightDp = mNavigationBarHeightForRotation[mLandscapeRotation]
                    * DisplayMetrics.DENSITY_DEFAULT / density;
            int aspect = ((shortSizeDp-barHeightDp) * 16) / longSizeDp;
            // We have computed the aspect ratio with the bar height taken
            // out to be 16:aspect.  If this is less than 9, then hiding
            // the navigation bar will provide more useful space for wide
            // screen movies.
            mCanHideNavigationBar = aspect < 9;
        } else if (mHasNavigationBar) {
            // The navigation bar is at the right in landscape; it seems always
            // useful to hide it for showing a video.
            mCanHideNavigationBar = true;
        } else {
            mCanHideNavigationBar = false;
        }

        // For demo purposes, allow the rotation of the HDMI display to be controlled.
        // By default, HDMI locks rotation to landscape.
        if ("portrait".equals(SystemProperties.get("persist.demo.hdmirotation"))) {
            mDemoHdmiRotation = mPortraitRotation;
        } else {
            mDemoHdmiRotation = mLandscapeRotation;
        }
        mDemoHdmiRotationLock = SystemProperties.getBoolean("persist.demo.hdmirotationlock", false);
    }

    @Override
    public void setDisplayOverscan(Display display, int left, int top, int right, int bottom) {
        if (display.getDisplayId() == Display.DEFAULT_DISPLAY) {
            mOverscanLeft = left;
            mOverscanTop = top;
            mOverscanRight = right;
            mOverscanBottom = bottom;
        }
    }

    public void updateSettings() {
        ContentResolver resolver = mContext.getContentResolver();
        boolean updateRotation = false;
        synchronized (mLock) {
            mEndcallBehavior = Settings.System.getIntForUser(resolver,
                    Settings.System.END_BUTTON_BEHAVIOR,
                    Settings.System.END_BUTTON_BEHAVIOR_DEFAULT,
                    UserHandle.USER_CURRENT);
            mIncallPowerBehavior = Settings.Secure.getIntForUser(resolver,
                    Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR,
                    Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT,
                    UserHandle.USER_CURRENT);

            // Configure rotation lock.
            int userRotation = Settings.System.getIntForUser(resolver,
                    Settings.System.USER_ROTATION, Surface.ROTATION_0,
                    UserHandle.USER_CURRENT);
            if (mUserRotation != userRotation) {
                mUserRotation = userRotation;
                updateRotation = true;
            }
            int userRotationMode = Settings.System.getIntForUser(resolver,
                    Settings.System.ACCELEROMETER_ROTATION, 0, UserHandle.USER_CURRENT) != 0 ?
                            WindowManagerPolicy.USER_ROTATION_FREE :
                                    WindowManagerPolicy.USER_ROTATION_LOCKED;
            if (mUserRotationMode != userRotationMode) {
                mUserRotationMode = userRotationMode;
                updateRotation = true;
                updateOrientationListenerLp();
            }

            if (mSystemReady) {
                int pointerLocation = Settings.System.getIntForUser(resolver,
                        Settings.System.POINTER_LOCATION, 0, UserHandle.USER_CURRENT);
                if (mPointerLocationMode != pointerLocation) {
                    mPointerLocationMode = pointerLocation;
                    mHandler.sendEmptyMessage(pointerLocation != 0 ?
                            MSG_ENABLE_POINTER_LOCATION : MSG_DISABLE_POINTER_LOCATION);
                }
            }
            // use screen off timeout setting as the timeout for the lockscreen
            mLockScreenTimeout = Settings.System.getIntForUser(resolver,
                    Settings.System.SCREEN_OFF_TIMEOUT, 0, UserHandle.USER_CURRENT);
            String imId = Settings.Secure.getStringForUser(resolver,
                    Settings.Secure.DEFAULT_INPUT_METHOD, UserHandle.USER_CURRENT);
            boolean hasSoftInput = imId != null && imId.length() > 0;
            if (mHasSoftInput != hasSoftInput) {
                mHasSoftInput = hasSoftInput;
                updateRotation = true;
            }
        }
        if (updateRotation) {
            updateRotation(true);
        }
    }

    private void enablePointerLocation() {
        if (mPointerLocationView == null) {
            mPointerLocationView = new PointerLocationView(mContext);
            mPointerLocationView.setPrintCoords(false);

            WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
                    WindowManager.LayoutParams.MATCH_PARENT,
                    WindowManager.LayoutParams.MATCH_PARENT);
            lp.type = WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY;
            lp.flags = WindowManager.LayoutParams.FLAG_FULLSCREEN
                    | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
                    | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                    | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
            if (ActivityManager.isHighEndGfx()) {
                lp.flags |= WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
                lp.privateFlags |=
                        WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED;
            }
            lp.format = PixelFormat.TRANSLUCENT;
            lp.setTitle("PointerLocation");
            WindowManager wm = (WindowManager)
                    mContext.getSystemService(Context.WINDOW_SERVICE);
            lp.inputFeatures |= WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL;
            wm.addView(mPointerLocationView, lp);

            mPointerLocationInputChannel =
                    mWindowManagerFuncs.monitorInput("PointerLocationView");
            mPointerLocationInputEventReceiver =
                    new PointerLocationInputEventReceiver(mPointerLocationInputChannel,
                            Looper.myLooper(), mPointerLocationView);
        }
    }

    private void disablePointerLocation() {
        if (mPointerLocationInputEventReceiver != null) {
            mPointerLocationInputEventReceiver.dispose();
            mPointerLocationInputEventReceiver = null;
        }

        if (mPointerLocationInputChannel != null) {
            mPointerLocationInputChannel.dispose();
            mPointerLocationInputChannel = null;
        }

        if (mPointerLocationView != null) {
            WindowManager wm = (WindowManager)
                    mContext.getSystemService(Context.WINDOW_SERVICE);
            wm.removeView(mPointerLocationView);
            mPointerLocationView = null;
        }
    }

    private int readRotation(int resID) {
        try {
            int rotation = mContext.getResources().getInteger(resID);
            switch (rotation) {
                case 0:
                    return Surface.ROTATION_0;
                case 90:
                    return Surface.ROTATION_90;
                case 180:
                    return Surface.ROTATION_180;
                case 270:
                    return Surface.ROTATION_270;
            }
        } catch (Resources.NotFoundException e) {
            // fall through
        }
        return -1;
    }

    /** {@inheritDoc} */
    @Override
    public int checkAddPermission(WindowManager.LayoutParams attrs, int[] outAppOp) {
        int type = attrs.type;

        outAppOp[0] = AppOpsManager.OP_NONE;

        if (type < WindowManager.LayoutParams.FIRST_SYSTEM_WINDOW
                || type > WindowManager.LayoutParams.LAST_SYSTEM_WINDOW) {
            return WindowManagerGlobal.ADD_OKAY;
        }
        String permission = null;
        switch (type) {
            case TYPE_TOAST:
                // XXX right now the app process has complete control over
                // this...  should introduce a token to let the system
                // monitor/control what they are doing.
                break;
            case TYPE_DREAM:
            case TYPE_INPUT_METHOD:
            case TYPE_WALLPAPER:
                // The window manager will check these.
                break;
            case TYPE_PHONE:
            case TYPE_PRIORITY_PHONE:
            case TYPE_SYSTEM_ALERT:
            case TYPE_SYSTEM_ERROR:
            case TYPE_SYSTEM_OVERLAY:
                permission = android.Manifest.permission.SYSTEM_ALERT_WINDOW;
                outAppOp[0] = AppOpsManager.OP_SYSTEM_ALERT_WINDOW;
                break;
            default:
                permission = android.Manifest.permission.INTERNAL_SYSTEM_WINDOW;
        }
        if (permission != null) {
            if (mContext.checkCallingOrSelfPermission(permission)
                    != PackageManager.PERMISSION_GRANTED) {
                return WindowManagerGlobal.ADD_PERMISSION_DENIED;
            }
        }
        return WindowManagerGlobal.ADD_OKAY;
    }

    @Override
    public boolean checkShowToOwnerOnly(WindowManager.LayoutParams attrs) {

        // If this switch statement is modified, modify the comment in the declarations of
        // the type in {@link WindowManager.LayoutParams} as well.
        switch (attrs.type) {
            default:
                // These are the windows that by default are shown only to the user that created
                // them. If this needs to be overridden, set
                // {@link WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS} in
                // {@link WindowManager.LayoutParams}. Note that permission
                // {@link android.Manifest.permission.INTERNAL_SYSTEM_WINDOW} is required as well.
                if ((attrs.privateFlags & PRIVATE_FLAG_SHOW_FOR_ALL_USERS) == 0) {
                    return true;
                }
                break;

            // These are the windows that by default are shown to all users. However, to
            // protect against spoofing, check permissions below.
            case TYPE_APPLICATION_STARTING:
            case TYPE_BOOT_PROGRESS:
            case TYPE_DISPLAY_OVERLAY:
            case TYPE_HIDDEN_NAV_CONSUMER:
            case TYPE_KEYGUARD:
            case TYPE_KEYGUARD_DIALOG:
            case TYPE_MAGNIFICATION_OVERLAY:
            case TYPE_NAVIGATION_BAR:
            case TYPE_NAVIGATION_BAR_PANEL:
            case TYPE_PHONE:
            case TYPE_POINTER:
            case TYPE_PRIORITY_PHONE:
            case TYPE_RECENTS_OVERLAY:
            case TYPE_SEARCH_BAR:
            case TYPE_STATUS_BAR:
            case TYPE_STATUS_BAR_PANEL:
            case TYPE_STATUS_BAR_SUB_PANEL:
            case TYPE_SYSTEM_DIALOG:
            case TYPE_UNIVERSE_BACKGROUND:
            case TYPE_VOLUME_OVERLAY:
                break;
        }

        // Check if third party app has set window to system window type.
        return mContext.checkCallingOrSelfPermission(
                android.Manifest.permission.INTERNAL_SYSTEM_WINDOW)
                        != PackageManager.PERMISSION_GRANTED;
    }

    public void adjustWindowParamsLw(WindowManager.LayoutParams attrs) {
        switch (attrs.type) {
            case TYPE_SYSTEM_OVERLAY:
            case TYPE_SECURE_SYSTEM_OVERLAY:
            case TYPE_TOAST:
                // These types of windows can't receive input events.
                attrs.flags |= WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
                        | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
                attrs.flags &= ~WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;
                break;
        }
    }

    void readLidState() {
        mLidState = mWindowManagerFuncs.getLidState();
    }

    private boolean isHidden(int accessibilityMode) {
        switch (accessibilityMode) {
            case 1:
                return mLidState == LID_CLOSED;
            case 2:
                return mLidState == LID_OPEN;
            default:
                return false;
        }
    }

    private boolean isBuiltInKeyboardVisible() {
        return mHaveBuiltInKeyboard && !isHidden(mLidKeyboardAccessibility);
    }

    /** {@inheritDoc} */
    public void adjustConfigurationLw(Configuration config, int keyboardPresence,
            int navigationPresence) {
        mHaveBuiltInKeyboard = (keyboardPresence & PRESENCE_INTERNAL) != 0;

        readConfigurationDependentBehaviors();
        readLidState();
        applyLidSwitchState();

        if (config.keyboard == Configuration.KEYBOARD_NOKEYS
                || (keyboardPresence == PRESENCE_INTERNAL
                        && isHidden(mLidKeyboardAccessibility))) {
            config.hardKeyboardHidden = Configuration.HARDKEYBOARDHIDDEN_YES;
            if (!mHasSoftInput) {
                config.keyboardHidden = Configuration.KEYBOARDHIDDEN_YES;
            }
        }

        if (config.navigation == Configuration.NAVIGATION_NONAV
                || (navigationPresence == PRESENCE_INTERNAL
                        && isHidden(mLidNavigationAccessibility))) {
            config.navigationHidden = Configuration.NAVIGATIONHIDDEN_YES;
        }
    }

    /** {@inheritDoc} */
    public int windowTypeToLayerLw(int type) {
        if (type >= FIRST_APPLICATION_WINDOW && type <= LAST_APPLICATION_WINDOW) {
            return 2;
        }
        switch (type) {
        case TYPE_UNIVERSE_BACKGROUND:
            return 1;
        case TYPE_WALLPAPER:
            // wallpaper is at the bottom, though the window manager may move it.
            return 2;
        case TYPE_PHONE:
            return 3;
        case TYPE_SEARCH_BAR:
            return 4;
        case TYPE_RECENTS_OVERLAY:
        case TYPE_SYSTEM_DIALOG:
            return 5;
        case TYPE_TOAST:
            // toasts and the plugged-in battery thing
            return 6;
        case TYPE_PRIORITY_PHONE:
            // SIM errors and unlock.  Not sure if this really should be in a high layer.
            return 7;
        case TYPE_DREAM:
            // used for Dreams (screensavers with TYPE_DREAM windows)
            return 8;
        case TYPE_SYSTEM_ALERT:
            // like the ANR / app crashed dialogs
            return 9;
        case TYPE_INPUT_METHOD:
            // on-screen keyboards and other such input method user interfaces go here.
            return 10;
        case TYPE_INPUT_METHOD_DIALOG:
            // on-screen keyboards and other such input method user interfaces go here.
            return 11;
        case TYPE_KEYGUARD:
            // the keyguard; nothing on top of these can take focus, since they are
            // responsible for power management when displayed.
            return 12;
        case TYPE_KEYGUARD_DIALOG:
            return 13;
        case TYPE_STATUS_BAR_SUB_PANEL:
            return 14;
        case TYPE_STATUS_BAR:
            return 15;
        case TYPE_STATUS_BAR_PANEL:
            return 16;
        case TYPE_VOLUME_OVERLAY:
            // the on-screen volume indicator and controller shown when the user
            // changes the device volume
            return 17;
        case TYPE_SYSTEM_OVERLAY:
            // the on-screen volume indicator and controller shown when the user
            // changes the device volume
            return 18;
        case TYPE_NAVIGATION_BAR:
            // the navigation bar, if available, shows atop most things
            return 19;
        case TYPE_NAVIGATION_BAR_PANEL:
            // some panels (e.g. search) need to show on top of the navigation bar
            return 20;
        case TYPE_SYSTEM_ERROR:
            // system-level error dialogs
            return 21;
        case TYPE_MAGNIFICATION_OVERLAY:
            // used to highlight the magnified portion of a display
            return 22;
        case TYPE_DISPLAY_OVERLAY:
            // used to simulate secondary display devices
            return 23;
        case TYPE_DRAG:
            // the drag layer: input for drag-and-drop is associated with this window,
            // which sits above all other focusable windows
            return 24;
        case TYPE_SECURE_SYSTEM_OVERLAY:
            return 25;
        case TYPE_BOOT_PROGRESS:
            return 26;
        case TYPE_POINTER:
            // the (mouse) pointer layer
            return 27;
        case TYPE_HIDDEN_NAV_CONSUMER:
            return 28;
        }
        Log.e(TAG, "Unknown window type: " + type);
        return 2;
    }

    /** {@inheritDoc} */
    public int subWindowTypeToLayerLw(int type) {
        switch (type) {
        case TYPE_APPLICATION_PANEL:
        case TYPE_APPLICATION_ATTACHED_DIALOG:
            return APPLICATION_PANEL_SUBLAYER;
        case TYPE_APPLICATION_MEDIA:
            return APPLICATION_MEDIA_SUBLAYER;
        case TYPE_APPLICATION_MEDIA_OVERLAY:
            return APPLICATION_MEDIA_OVERLAY_SUBLAYER;
        case TYPE_APPLICATION_SUB_PANEL:
            return APPLICATION_SUB_PANEL_SUBLAYER;
        }
        Log.e(TAG, "Unknown sub-window type: " + type);
        return 0;
    }

    public int getMaxWallpaperLayer() {
        return windowTypeToLayerLw(TYPE_STATUS_BAR);
    }

    public int getAboveUniverseLayer() {
        return windowTypeToLayerLw(TYPE_SYSTEM_ERROR);
    }

    public boolean hasSystemNavBar() {
        return mHasSystemNavBar;
    }

    public int getNonDecorDisplayWidth(int fullWidth, int fullHeight, int rotation) {
        if (mHasNavigationBar) {
            // For a basic navigation bar, when we are in landscape mode we place
            // the navigation bar to the side.
            if (mNavigationBarCanMove && fullWidth > fullHeight) {
                return fullWidth - mNavigationBarWidthForRotation[rotation];
            }
        }
        return fullWidth;
    }

    public int getNonDecorDisplayHeight(int fullWidth, int fullHeight, int rotation) {
        if (mHasSystemNavBar) {
            // For the system navigation bar, we always place it at the bottom.
            return fullHeight - mNavigationBarHeightForRotation[rotation];
        }
        if (mHasNavigationBar) {
            // For a basic navigation bar, when we are in portrait mode we place
            // the navigation bar to the bottom.
            if (!mNavigationBarCanMove || fullWidth < fullHeight) {
                return fullHeight - mNavigationBarHeightForRotation[rotation];
            }
        }
        return fullHeight;
    }

    public int getConfigDisplayWidth(int fullWidth, int fullHeight, int rotation) {
        return getNonDecorDisplayWidth(fullWidth, fullHeight, rotation);
    }

    public int getConfigDisplayHeight(int fullWidth, int fullHeight, int rotation) {
        // If we don't have a system nav bar, then there is a separate status
        // bar at the top of the display.  We don't count that as part of the
        // fixed decor, since it can hide; however, for purposes of configurations,
        // we do want to exclude it since applications can't generally use that part
        // of the screen.
        if (!mHasSystemNavBar) {
            return getNonDecorDisplayHeight(fullWidth, fullHeight, rotation) - mStatusBarHeight;
        }
        return getNonDecorDisplayHeight(fullWidth, fullHeight, rotation);
    }

    @Override
    public boolean doesForceHide(WindowState win, WindowManager.LayoutParams attrs) {
        return attrs.type == WindowManager.LayoutParams.TYPE_KEYGUARD;
    }

    @Override
    public boolean canBeForceHidden(WindowState win, WindowManager.LayoutParams attrs) {
        switch (attrs.type) {
            case TYPE_STATUS_BAR:
            case TYPE_NAVIGATION_BAR:
            case TYPE_WALLPAPER:
            case TYPE_DREAM:
            case TYPE_UNIVERSE_BACKGROUND:
            case TYPE_KEYGUARD:
                return false;
            default:
                return true;
        }
    }

    /** {@inheritDoc} */
    @Override
    public View addStartingWindow(IBinder appToken, String packageName, int theme,
            CompatibilityInfo compatInfo, CharSequence nonLocalizedLabel, int labelRes,
            int icon, int windowFlags) {
        if (!SHOW_STARTING_ANIMATIONS) {
            return null;
        }
        if (packageName == null) {
            return null;
        }

        WindowManager wm = null;
        View view = null;

        try {
            Context context = mContext;
            if (DEBUG_STARTING_WINDOW) Slog.d(TAG, "addStartingWindow " + packageName
                    + ": nonLocalizedLabel=" + nonLocalizedLabel + " theme="
                    + Integer.toHexString(theme));
            if (theme != context.getThemeResId() || labelRes != 0) {
                try {
                    context = context.createPackageContext(packageName, 0);
                    context.setTheme(theme);
                } catch (PackageManager.NameNotFoundException e) {
                    // Ignore
                }
            }

            Window win = PolicyManager.makeNewWindow(context);
            final TypedArray ta = win.getWindowStyle();
            if (ta.getBoolean(
                        com.android.internal.R.styleable.Window_windowDisablePreview, false)
                || ta.getBoolean(
                        com.android.internal.R.styleable.Window_windowShowWallpaper,false)) {
                return null;
            }

            Resources r = context.getResources();
            win.setTitle(r.getText(labelRes, nonLocalizedLabel));

            win.setType(
                WindowManager.LayoutParams.TYPE_APPLICATION_STARTING);
            // Force the window flags: this is a fake window, so it is not really
            // touchable or focusable by the user.  We also add in the ALT_FOCUSABLE_IM
            // flag because we do know that the next window will take input
            // focus, so we want to get the IME window up on top of us right away.
            win.setFlags(
                windowFlags|
                WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE|
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
                WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM,
                windowFlags|
                WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE|
                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
                WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);

            if (!compatInfo.supportsScreen()) {
                win.addFlags(WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW);
            }

            win.setLayout(WindowManager.LayoutParams.MATCH_PARENT,
                    WindowManager.LayoutParams.MATCH_PARENT);

            final WindowManager.LayoutParams params = win.getAttributes();
            params.token = appToken;
            params.packageName = packageName;
            params.windowAnimations = win.getWindowStyle().getResourceId(
                    com.android.internal.R.styleable.Window_windowAnimationStyle, 0);
            params.privateFlags |=
                    WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED;
            params.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
            params.setTitle("Starting " + packageName);

            wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
            view = win.getDecorView();

            if (win.isFloating()) {
                // Whoops, there is no way to display an animation/preview
                // of such a thing!  After all that work...  let's skip it.
                // (Note that we must do this here because it is in
                // getDecorView() where the theme is evaluated...  maybe
                // we should peek the floating attribute from the theme
                // earlier.)
                return null;
            }

            if (DEBUG_STARTING_WINDOW) Slog.d(
                TAG, "Adding starting window for " + packageName
                + " / " + appToken + ": "
                + (view.getParent() != null ? view : null));

            wm.addView(view, params);

            // Only return the view if it was successfully added to the
            // window manager... which we can tell by it having a parent.
            return view.getParent() != null ? view : null;
        } catch (WindowManager.BadTokenException e) {
            // ignore
            Log.w(TAG, appToken + " already running, starting window not displayed");
        } catch (RuntimeException e) {
            // don't crash if something else bad happens, for example a
            // failure loading resources because we are loading from an app
            // on external storage that has been unmounted.
            Log.w(TAG, appToken + " failed creating starting window", e);
        } finally {
            if (view != null && view.getParent() == null) {
                Log.w(TAG, "view not successfully added to wm, removing view");
                wm.removeViewImmediate(view);
            }
        }

        return null;
    }

    /** {@inheritDoc} */
    public void removeStartingWindow(IBinder appToken, View window) {
        if (DEBUG_STARTING_WINDOW) {
            RuntimeException e = new RuntimeException("here");
            e.fillInStackTrace();
            Log.v(TAG, "Removing starting window for " + appToken + ": " + window, e);
        }

        if (window != null) {
            WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE);
            wm.removeView(window);
        }
    }

    /**
     * Preflight adding a window to the system.
     *
     * Currently enforces that three window types are singletons:
     * <ul>
     * <li>STATUS_BAR_TYPE</li>
     * <li>KEYGUARD_TYPE</li>
     * </ul>
     *
     * @param win The window to be added
     * @param attrs Information about the window to be added
     *
     * @return If ok, WindowManagerImpl.ADD_OKAY.  If too many singletons,
     * WindowManagerImpl.ADD_MULTIPLE_SINGLETON
     */
    public int prepareAddWindowLw(WindowState win, WindowManager.LayoutParams attrs) {
        switch (attrs.type) {
            case TYPE_STATUS_BAR:
                mContext.enforceCallingOrSelfPermission(
                        android.Manifest.permission.STATUS_BAR_SERVICE,
                        "PhoneWindowManager");
                if (mStatusBar != null) {
                    if (mStatusBar.isAlive()) {
                        return WindowManagerGlobal.ADD_MULTIPLE_SINGLETON;
                    }
                }
                mStatusBar = win;
                break;
            case TYPE_NAVIGATION_BAR:
                mContext.enforceCallingOrSelfPermission(
                        android.Manifest.permission.STATUS_BAR_SERVICE,
                        "PhoneWindowManager");
                if (mNavigationBar != null) {
                    if (mNavigationBar.isAlive()) {
                        return WindowManagerGlobal.ADD_MULTIPLE_SINGLETON;
                    }
                }
                mNavigationBar = win;
                if (DEBUG_LAYOUT) Log.i(TAG, "NAVIGATION BAR: " + mNavigationBar);
                break;
            case TYPE_NAVIGATION_BAR_PANEL:
                mContext.enforceCallingOrSelfPermission(
                        android.Manifest.permission.STATUS_BAR_SERVICE,
                        "PhoneWindowManager");
                break;
            case TYPE_STATUS_BAR_PANEL:
                mContext.enforceCallingOrSelfPermission(
                        android.Manifest.permission.STATUS_BAR_SERVICE,
                        "PhoneWindowManager");
                break;
            case TYPE_STATUS_BAR_SUB_PANEL:
                mContext.enforceCallingOrSelfPermission(
                        android.Manifest.permission.STATUS_BAR_SERVICE,
                        "PhoneWindowManager");
                break;
            case TYPE_KEYGUARD:
                if (mKeyguard != null) {
                    return WindowManagerGlobal.ADD_MULTIPLE_SINGLETON;
                }
                mKeyguard = win;
                break;
        }
        return WindowManagerGlobal.ADD_OKAY;
    }

    /** {@inheritDoc} */
    public void removeWindowLw(WindowState win) {
        if (mStatusBar == win) {
            mStatusBar = null;
        } else if (mKeyguard == win) {
            mKeyguard = null;
        } else if (mNavigationBar == win) {
            mNavigationBar = null;
        }
    }

    static final boolean PRINT_ANIM = false;

    /** {@inheritDoc} */
    @Override
    public int selectAnimationLw(WindowState win, int transit) {
        if (PRINT_ANIM) Log.i(TAG, "selectAnimation in " + win
              + ": transit=" + transit);
        if (win == mStatusBar) {
            if (transit == TRANSIT_EXIT
                    || transit == TRANSIT_HIDE) {
                return R.anim.dock_top_exit;
            } else if (transit == TRANSIT_ENTER
                    || transit == TRANSIT_SHOW) {
                return R.anim.dock_top_enter;
            }
        } else if (win == mNavigationBar) {
            // This can be on either the bottom or the right.
            if (mNavigationBarOnBottom) {
                if (transit == TRANSIT_EXIT
                        || transit == TRANSIT_HIDE) {
                    return R.anim.dock_bottom_exit;
                } else if (transit == TRANSIT_ENTER
                        || transit == TRANSIT_SHOW) {
                    return R.anim.dock_bottom_enter;
                }
            } else {
                if (transit == TRANSIT_EXIT
                        || transit == TRANSIT_HIDE) {
                    return R.anim.dock_right_exit;
                } else if (transit == TRANSIT_ENTER
                        || transit == TRANSIT_SHOW) {
                    return R.anim.dock_right_enter;
                }
            }
        }

        if (transit == TRANSIT_PREVIEW_DONE) {
            if (win.hasAppShownWindows()) {
                if (PRINT_ANIM) Log.i(TAG, "**** STARTING EXIT");
                return com.android.internal.R.anim.app_starting_exit;
            }
        } else if (win.getAttrs().type == TYPE_DREAM && mDreamingLockscreen
                && transit == TRANSIT_ENTER) {
            // Special case: we are animating in a dream, while the keyguard
            // is shown.  We don't want an animation on the dream, because
            // we need it shown immediately with the keyguard animating away
            // to reveal it.
            return -1;
        }

        return 0;
    }

    @Override
    public void selectRotationAnimationLw(int anim[]) {
        if (PRINT_ANIM) Slog.i(TAG, "selectRotationAnimation mTopFullscreen="
                + mTopFullscreenOpaqueWindowState + " rotationAnimation="
                + (mTopFullscreenOpaqueWindowState == null ?
                        "0" : mTopFullscreenOpaqueWindowState.getAttrs().rotationAnimation));
        if (mTopFullscreenOpaqueWindowState != null && mTopIsFullscreen) {
            switch (mTopFullscreenOpaqueWindowState.getAttrs().rotationAnimation) {
                case ROTATION_ANIMATION_CROSSFADE:
                    anim[0] = R.anim.rotation_animation_xfade_exit;
                    anim[1] = R.anim.rotation_animation_enter;
                    break;
                case ROTATION_ANIMATION_JUMPCUT:
                    anim[0] = R.anim.rotation_animation_jump_exit;
                    anim[1] = R.anim.rotation_animation_enter;
                    break;
                case ROTATION_ANIMATION_ROTATE:
                default:
                    anim[0] = anim[1] = 0;
                    break;
            }
        } else {
            anim[0] = anim[1] = 0;
        }
    }

    @Override
    public boolean validateRotationAnimationLw(int exitAnimId, int enterAnimId,
            boolean forceDefault) {
        switch (exitAnimId) {
            case R.anim.rotation_animation_xfade_exit:
            case R.anim.rotation_animation_jump_exit:
                // These are the only cases that matter.
                if (forceDefault) {
                    return false;
                }
                int anim[] = new int[2];
                selectRotationAnimationLw(anim);
                return (exitAnimId == anim[0] && enterAnimId == anim[1]);
            default:
                return true;
        }
    }

    @Override
    public Animation createForceHideEnterAnimation(boolean onWallpaper) {
        return AnimationUtils.loadAnimation(mContext, onWallpaper
                ? com.android.internal.R.anim.lock_screen_wallpaper_behind_enter
                : com.android.internal.R.anim.lock_screen_behind_enter);
    }

    private static void awakenDreams() {
        IDreamManager dreamManager = getDreamManager();
        if (dreamManager != null) {
            try {
                dreamManager.awaken();
            } catch (RemoteException e) {
                // fine, stay asleep then
            }
        }
    }

    static IDreamManager getDreamManager() {
        return IDreamManager.Stub.asInterface(
                ServiceManager.checkService(DreamService.DREAM_SERVICE));
    }

    static ITelephony getTelephonyService() {
        return ITelephony.Stub.asInterface(
                ServiceManager.checkService(Context.TELEPHONY_SERVICE));
    }

    static IAudioService getAudioService() {
        IAudioService audioService = IAudioService.Stub.asInterface(
                ServiceManager.checkService(Context.AUDIO_SERVICE));
        if (audioService == null) {
            Log.w(TAG, "Unable to find IAudioService interface.");
        }
        return audioService;
    }

    boolean keyguardOn() {
        return keyguardIsShowingTq() || inKeyguardRestrictedKeyInputMode();
    }

    private static final int[] WINDOW_TYPES_WHERE_HOME_DOESNT_WORK = {
            WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
            WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
        };

    /** {@inheritDoc} */
    @Override
    public long interceptKeyBeforeDispatching(WindowState win, KeyEvent event, int policyFlags) {
        final boolean keyguardOn = keyguardOn();
        final int keyCode = event.getKeyCode();
        final int repeatCount = event.getRepeatCount();
        final int metaState = event.getMetaState();
        final int flags = event.getFlags();
        final boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
        final boolean canceled = event.isCanceled();

        if (DEBUG_INPUT) {
            Log.d(TAG, "interceptKeyTi keyCode=" + keyCode + " down=" + down + " repeatCount="
                    + repeatCount + " keyguardOn=" + keyguardOn + " mHomePressed=" + mHomePressed
                    + " canceled=" + canceled);
        }

        // If we think we might have a volume down & power key chord on the way
        // but we're not sure, then tell the dispatcher to wait a little while and
        // try again later before dispatching.
        if (mScreenshotChordEnabled && (flags & KeyEvent.FLAG_FALLBACK) == 0) {
            if (mVolumeDownKeyTriggered && !mPowerKeyTriggered) {
                final long now = SystemClock.uptimeMillis();
                final long timeoutTime = mVolumeDownKeyTime + SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS;
                if (now < timeoutTime) {
                    return timeoutTime - now;
                }
            }
            if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN
                    && mVolumeDownKeyConsumedByScreenshotChord) {
                if (!down) {
                    mVolumeDownKeyConsumedByScreenshotChord = false;
                }
                return -1;
            }
        }

        // First we always handle the home key here, so applications
        // can never break it, although if keyguard is on, we do let
        // it handle it, because that gives us the correct 5 second
        // timeout.
        if (keyCode == KeyEvent.KEYCODE_HOME) {

            // If we have released the home key, and didn't do anything else
            // while it was pressed, then it is time to go home!
            if (!down) {
                cancelPreloadRecentApps();

                mHomePressed = false;
                if (mHomeConsumed) {
                    mHomeConsumed = false;
                    return -1;
                }

                if (canceled) {
                    Log.i(TAG, "Ignoring HOME; event canceled.");
                    return -1;
                }

                // If an incoming call is ringing, HOME is totally disabled.
                // (The user is already on the InCallScreen at this point,
                // and his ONLY options are to answer or reject the call.)
                try {
                    ITelephony telephonyService = getTelephonyService();
                    if (telephonyService != null && telephonyService.isRinging()) {
                        Log.i(TAG, "Ignoring HOME; there's a ringing incoming call.");
                        return -1;
                    }
                } catch (RemoteException ex) {
                    Log.w(TAG, "RemoteException from getPhoneInterface()", ex);
                }

                // Delay handling home if a double-tap is possible.
                if (mDoubleTapOnHomeBehavior != DOUBLE_TAP_HOME_NOTHING) {
                    mHandler.removeCallbacks(mHomeDoubleTapTimeoutRunnable); // just in case
                    mHomeDoubleTapPending = true;
                    mHandler.postDelayed(mHomeDoubleTapTimeoutRunnable,
                            ViewConfiguration.getDoubleTapTimeout());
                    return -1;
                }

                // Go home!
                launchHomeFromHotKey();
                return -1;
            }

            // If a system window has focus, then it doesn't make sense
            // right now to interact with applications.
            WindowManager.LayoutParams attrs = win != null ? win.getAttrs() : null;
            if (attrs != null) {
                final int type = attrs.type;
                if (type == WindowManager.LayoutParams.TYPE_KEYGUARD
                        || type == WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG) {
                    // the "app" is keyguard, so give it the key
                    return 0;
                }
                final int typeCount = WINDOW_TYPES_WHERE_HOME_DOESNT_WORK.length;
                for (int i=0; i<typeCount; i++) {
                    if (type == WINDOW_TYPES_WHERE_HOME_DOESNT_WORK[i]) {
                        // don't do anything, but also don't pass it to the app
                        return -1;
                    }
                }
            }

            // Remember that home is pressed and handle special actions.
            if (repeatCount == 0) {
                mHomePressed = true;
                if (mHomeDoubleTapPending) {
                    mHomeDoubleTapPending = false;
                    mHandler.removeCallbacks(mHomeDoubleTapTimeoutRunnable);
                    handleDoubleTapOnHome();
                } else if (mLongPressOnHomeBehavior == LONG_PRESS_HOME_RECENT_SYSTEM_UI
                        || mDoubleTapOnHomeBehavior == DOUBLE_TAP_HOME_RECENT_SYSTEM_UI) {
                    preloadRecentApps();
                }
            } else if ((event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0) {
                if (!keyguardOn) {
                    handleLongPressOnHome();
                }
            }
            return -1;
        } else if (keyCode == KeyEvent.KEYCODE_MENU) {
            // Hijack modified menu keys for debugging features
            final int chordBug = KeyEvent.META_SHIFT_ON;

            if (down && repeatCount == 0) {
                if (mEnableShiftMenuBugReports && (metaState & chordBug) == chordBug) {
                    Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
                    mContext.sendOrderedBroadcastAsUser(intent, UserHandle.CURRENT,
                            null, null, null, 0, null, null);
                    return -1;
                } else if (SHOW_PROCESSES_ON_ALT_MENU &&
                        (metaState & KeyEvent.META_ALT_ON) == KeyEvent.META_ALT_ON) {
                    Intent service = new Intent();
                    service.setClassName(mContext, "com.android.server.LoadAverageService");
                    ContentResolver res = mContext.getContentResolver();
                    boolean shown = Settings.Global.getInt(
                            res, Settings.Global.SHOW_PROCESSES, 0) != 0;
                    if (!shown) {
                        mContext.startService(service);
                    } else {
                        mContext.stopService(service);
                    }
                    Settings.Global.putInt(
                            res, Settings.Global.SHOW_PROCESSES, shown ? 0 : 1);
                    return -1;
                }
            }
        } else if (keyCode == KeyEvent.KEYCODE_SEARCH) {
            if (down) {
                if (repeatCount == 0) {
                    mSearchKeyShortcutPending = true;
                    mConsumeSearchKeyUp = false;
                }
            } else {
                mSearchKeyShortcutPending = false;
                if (mConsumeSearchKeyUp) {
                    mConsumeSearchKeyUp = false;
                    return -1;
                }
            }
            return 0;
        } else if (keyCode == KeyEvent.KEYCODE_APP_SWITCH) {
            if (!keyguardOn) {
                if (down && repeatCount == 0) {
                    preloadRecentApps();
                } else if (!down) {
                    toggleRecentApps();
                }
            }
            return -1;
        } else if (keyCode == KeyEvent.KEYCODE_ASSIST) {
            if (down) {
                if (repeatCount == 0) {
                    mAssistKeyLongPressed = false;
                } else if (repeatCount == 1) {
                    mAssistKeyLongPressed = true;
                    if (!keyguardOn) {
                         launchAssistLongPressAction();
                    }
                }
            } else {
                if (mAssistKeyLongPressed) {
                    mAssistKeyLongPressed = false;
                } else {
                    if (!keyguardOn) {
                        launchAssistAction();
                    }
                }
            }
            return -1;
        } else if (keyCode == KeyEvent.KEYCODE_SYSRQ) {
            if (down && repeatCount == 0) {
                mHandler.post(mScreenshotRunnable);
            }
            return -1;
        }

        // Shortcuts are invoked through Search+key, so intercept those here
        // Any printing key that is chorded with Search should be consumed
        // even if no shortcut was invoked.  This prevents text from being
        // inadvertently inserted when using a keyboard that has built-in macro
        // shortcut keys (that emit Search+x) and some of them are not registered.
        if (mSearchKeyShortcutPending) {
            final KeyCharacterMap kcm = event.getKeyCharacterMap();
            if (kcm.isPrintingKey(keyCode)) {
                mConsumeSearchKeyUp = true;
                mSearchKeyShortcutPending = false;
                if (down && repeatCount == 0 && !keyguardOn) {
                    Intent shortcutIntent = mShortcutManager.getIntent(kcm, keyCode, metaState);
                    if (shortcutIntent != null) {
                        shortcutIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                        try {
                            mContext.startActivity(shortcutIntent);
                        } catch (ActivityNotFoundException ex) {
                            Slog.w(TAG, "Dropping shortcut key combination because "
                                    + "the activity to which it is registered was not found: "
                                    + "SEARCH+" + KeyEvent.keyCodeToString(keyCode), ex);
                        }
                    } else {
                        Slog.i(TAG, "Dropping unregistered shortcut key combination: "
                                + "SEARCH+" + KeyEvent.keyCodeToString(keyCode));
                    }
                }
                return -1;
            }
        }

        // Invoke shortcuts using Meta.
        if (down && repeatCount == 0 && !keyguardOn
                && (metaState & KeyEvent.META_META_ON) != 0) {
            final KeyCharacterMap kcm = event.getKeyCharacterMap();
            if (kcm.isPrintingKey(keyCode)) {
                Intent shortcutIntent = mShortcutManager.getIntent(kcm, keyCode,
                        metaState & ~(KeyEvent.META_META_ON
                                | KeyEvent.META_META_LEFT_ON | KeyEvent.META_META_RIGHT_ON));
                if (shortcutIntent != null) {
                    shortcutIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    try {
                        mContext.startActivity(shortcutIntent);
                    } catch (ActivityNotFoundException ex) {
                        Slog.w(TAG, "Dropping shortcut key combination because "
                                + "the activity to which it is registered was not found: "
                                + "META+" + KeyEvent.keyCodeToString(keyCode), ex);
                    }
                    return -1;
                }
            }
        }

        // Handle application launch keys.
        if (down && repeatCount == 0 && !keyguardOn) {
            String category = sApplicationLaunchKeyCategories.get(keyCode);
            if (category != null) {
                Intent intent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, category);
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                try {
                    mContext.startActivity(intent);
                } catch (ActivityNotFoundException ex) {
                    Slog.w(TAG, "Dropping application launch key because "
                            + "the activity to which it is registered was not found: "
                            + "keyCode=" + keyCode + ", category=" + category, ex);
                }
                return -1;
            }
        }

        // Display task switcher for ALT-TAB or Meta-TAB.
        if (down && repeatCount == 0 && keyCode == KeyEvent.KEYCODE_TAB) {
            if (mRecentAppsDialogHeldModifiers == 0 && !keyguardOn) {
                final int shiftlessModifiers = event.getModifiers() & ~KeyEvent.META_SHIFT_MASK;
                if (KeyEvent.metaStateHasModifiers(shiftlessModifiers, KeyEvent.META_ALT_ON)
                        || KeyEvent.metaStateHasModifiers(
                                shiftlessModifiers, KeyEvent.META_META_ON)) {
                    mRecentAppsDialogHeldModifiers = shiftlessModifiers;
                    showOrHideRecentAppsDialog(RECENT_APPS_BEHAVIOR_EXIT_TOUCH_MODE_AND_SHOW);
                    return -1;
                }
            }
        } else if (!down && mRecentAppsDialogHeldModifiers != 0
                && (metaState & mRecentAppsDialogHeldModifiers) == 0) {
            mRecentAppsDialogHeldModifiers = 0;
            showOrHideRecentAppsDialog(keyguardOn ? RECENT_APPS_BEHAVIOR_DISMISS :
                    RECENT_APPS_BEHAVIOR_DISMISS_AND_SWITCH);
        }

        // Handle keyboard language switching.
        if (down && repeatCount == 0
                && (keyCode == KeyEvent.KEYCODE_LANGUAGE_SWITCH
                        || (keyCode == KeyEvent.KEYCODE_SPACE
                                && (metaState & KeyEvent.META_CTRL_MASK) != 0))) {
            int direction = (metaState & KeyEvent.META_SHIFT_MASK) != 0 ? -1 : 1;
            mWindowManagerFuncs.switchKeyboardLayout(event.getDeviceId(), direction);
            return -1;
        }
        if (mLanguageSwitchKeyPressed && !down
                && (keyCode == KeyEvent.KEYCODE_LANGUAGE_SWITCH
                        || keyCode == KeyEvent.KEYCODE_SPACE)) {
            mLanguageSwitchKeyPressed = false;
            return -1;
        }

        if (mGlobalKeyManager.handleGlobalKey(mContext, keyCode, event)) {
            return -1;
        }

        // Let the application handle the key.
        return 0;
    }

    /** {@inheritDoc} */
    @Override
    public KeyEvent dispatchUnhandledKey(WindowState win, KeyEvent event, int policyFlags) {
        // Note: This method is only called if the initial down was unhandled.
        if (DEBUG_INPUT) {
            Slog.d(TAG, "Unhandled key: win=" + win + ", action=" + event.getAction()
                    + ", flags=" + event.getFlags()
                    + ", keyCode=" + event.getKeyCode()
                    + ", scanCode=" + event.getScanCode()
                    + ", metaState=" + event.getMetaState()
                    + ", repeatCount=" + event.getRepeatCount()
                    + ", policyFlags=" + policyFlags);
        }

        KeyEvent fallbackEvent = null;
        if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
            final KeyCharacterMap kcm = event.getKeyCharacterMap();
            final int keyCode = event.getKeyCode();
            final int metaState = event.getMetaState();
            final boolean initialDown = event.getAction() == KeyEvent.ACTION_DOWN
                    && event.getRepeatCount() == 0;

            // Check for fallback actions specified by the key character map.
            final FallbackAction fallbackAction;
            if (initialDown) {
                fallbackAction = kcm.getFallbackAction(keyCode, metaState);
            } else {
                fallbackAction = mFallbackActions.get(keyCode);
            }

            if (fallbackAction != null) {
                if (DEBUG_INPUT) {
                    Slog.d(TAG, "Fallback: keyCode=" + fallbackAction.keyCode
                            + " metaState=" + Integer.toHexString(fallbackAction.metaState));
                }

                final int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK;
                fallbackEvent = KeyEvent.obtain(
                        event.getDownTime(), event.getEventTime(),
                        event.getAction(), fallbackAction.keyCode,
                        event.getRepeatCount(), fallbackAction.metaState,
                        event.getDeviceId(), event.getScanCode(),
                        flags, event.getSource(), null);

                if (!interceptFallback(win, fallbackEvent, policyFlags)) {
                    fallbackEvent.recycle();
                    fallbackEvent = null;
                }

                if (initialDown) {
                    mFallbackActions.put(keyCode, fallbackAction);
                } else if (event.getAction() == KeyEvent.ACTION_UP) {
                    mFallbackActions.remove(keyCode);
                    fallbackAction.recycle();
                }
            }
        }

        if (DEBUG_INPUT) {
            if (fallbackEvent == null) {
                Slog.d(TAG, "No fallback.");
            } else {
                Slog.d(TAG, "Performing fallback: " + fallbackEvent);
            }
        }
        return fallbackEvent;
    }

    private boolean interceptFallback(WindowState win, KeyEvent fallbackEvent, int policyFlags) {
        int actions = interceptKeyBeforeQueueing(fallbackEvent, policyFlags, true);
        if ((actions & ACTION_PASS_TO_USER) != 0) {
            long delayMillis = interceptKeyBeforeDispatching(
                    win, fallbackEvent, policyFlags);
            if (delayMillis == 0) {
                return true;
            }
        }
        return false;
    }

    private void launchAssistLongPressAction() {
        performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false);
        sendCloseSystemWindows(SYSTEM_DIALOG_REASON_ASSIST);

        // launch the search activity
        Intent intent = new Intent(Intent.ACTION_SEARCH_LONG_PRESS);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        try {
            // TODO: This only stops the factory-installed search manager.
            // Need to formalize an API to handle others
            SearchManager searchManager = getSearchManager();
            if (searchManager != null) {
                searchManager.stopSearch();
            }
            mContext.startActivityAsUser(intent, new UserHandle(UserHandle.USER_CURRENT));
        } catch (ActivityNotFoundException e) {
            Slog.w(TAG, "No activity to handle assist long press action.", e);
        }
    }

    private void launchAssistAction() {
        sendCloseSystemWindows(SYSTEM_DIALOG_REASON_ASSIST);
        Intent intent = ((SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE))
                .getAssistIntent(mContext, true, UserHandle.USER_CURRENT);
        if (intent != null) {
            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
                    | Intent.FLAG_ACTIVITY_SINGLE_TOP
                    | Intent.FLAG_ACTIVITY_CLEAR_TOP);
            try {
                mContext.startActivityAsUser(intent, new UserHandle(UserHandle.USER_CURRENT));
            } catch (ActivityNotFoundException e) {
                Slog.w(TAG, "No activity to handle assist action.", e);
            }
        }
    }

    private SearchManager getSearchManager() {
        if (mSearchManager == null) {
            mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE);
        }
        return mSearchManager;
    }

    private void preloadRecentApps() {
        mPreloadedRecentApps = true;
        try {
            IStatusBarService statusbar = getStatusBarService();
            if (statusbar != null) {
                statusbar.preloadRecentApps();
            }
        } catch (RemoteException e) {
            Slog.e(TAG, "RemoteException when preloading recent apps", e);
            // re-acquire status bar service next time it is needed.
            mStatusBarService = null;
        }
    }

    private void cancelPreloadRecentApps() {
        if (mPreloadedRecentApps) {
            mPreloadedRecentApps = false;
            try {
                IStatusBarService statusbar = getStatusBarService();
                if (statusbar != null) {
                    statusbar.cancelPreloadRecentApps();
                }
            } catch (RemoteException e) {
                Slog.e(TAG, "RemoteException when showing recent apps", e);
                // re-acquire status bar service next time it is needed.
                mStatusBarService = null;
            }
        }
    }

    private void toggleRecentApps() {
        mPreloadedRecentApps = false; // preloading no longer needs to be canceled
        sendCloseSystemWindows(SYSTEM_DIALOG_REASON_RECENT_APPS);
        try {
            IStatusBarService statusbar = getStatusBarService();
            if (statusbar != null) {
                statusbar.toggleRecentApps();
            }
        } catch (RemoteException e) {
            Slog.e(TAG, "RemoteException when showing recent apps", e);
            // re-acquire status bar service next time it is needed.
            mStatusBarService = null;
        }
    }

    /**
     * A home key -> launch home action was detected.  Take the appropriate action
     * given the situation with the keyguard.
     */
    void launchHomeFromHotKey() {
        if (mKeyguardMediator != null && mKeyguardMediator.isShowingAndNotHidden()) {
            // don't launch home if keyguard showing
        } else if (!mHideLockScreen && mKeyguardMediator.isInputRestricted()) {
            // when in keyguard restricted mode, must first verify unlock
            // before launching home
            mKeyguardMediator.verifyUnlock(new OnKeyguardExitResult() {
                public void onKeyguardExitResult(boolean success) {
                    if (success) {
                        try {
                            ActivityManagerNative.getDefault().stopAppSwitches();
                        } catch (RemoteException e) {
                        }
                        sendCloseSystemWindows(SYSTEM_DIALOG_REASON_HOME_KEY);
                        startDockOrHome();
                    }
                }
            });
        } else {
            // no keyguard stuff to worry about, just launch home!
            try {
                ActivityManagerNative.getDefault().stopAppSwitches();
            } catch (RemoteException e) {
            }
            sendCloseSystemWindows(SYSTEM_DIALOG_REASON_HOME_KEY);
            startDockOrHome();
        }
    }

    /**
     * A delayed callback use to determine when it is okay to re-allow applications
     * to use certain system UI flags.  This is used to prevent applications from
     * spamming system UI changes that prevent the navigation bar from being shown.
     */
    final Runnable mAllowSystemUiDelay = new Runnable() {
        @Override public void run() {
        }
    };

    /**
     * Input handler used while nav bar is hidden.  Captures any touch on the screen,
     * to determine when the nav bar should be shown and prevent applications from
     * receiving those touches.
     */
    final class HideNavInputEventReceiver extends InputEventReceiver {
        public HideNavInputEventReceiver(InputChannel inputChannel, Looper looper) {
            super(inputChannel, looper);
        }

        @Override
        public void onInputEvent(InputEvent event) {
            boolean handled = false;
            try {
                if (event instanceof MotionEvent
                        && (event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
                    final MotionEvent motionEvent = (MotionEvent)event;
                    if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
                        // When the user taps down, we re-show the nav bar.
                        boolean changed = false;
                        synchronized (mLock) {
                            // Any user activity always causes us to show the
                            // navigation controls, if they had been hidden.
                            // We also clear the low profile and only content
                            // flags so that tapping on the screen will atomically
                            // restore all currently hidden screen decorations.
                            int newVal = mResettingSystemUiFlags |
                                    View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
                                    View.SYSTEM_UI_FLAG_LOW_PROFILE |
                                    View.SYSTEM_UI_FLAG_FULLSCREEN;
                            if (mResettingSystemUiFlags != newVal) {
                                mResettingSystemUiFlags = newVal;
                                changed = true;
                            }
                            // We don't allow the system's nav bar to be hidden
                            // again for 1 second, to prevent applications from
                            // spamming us and keeping it from being shown.
                            newVal = mForceClearedSystemUiFlags |
                                    View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
                            if (mForceClearedSystemUiFlags != newVal) {
                                mForceClearedSystemUiFlags = newVal;
                                changed = true;
                                mHandler.postDelayed(new Runnable() {
                                    @Override public void run() {
                                        synchronized (mLock) {
                                            // Clear flags.
                                            mForceClearedSystemUiFlags &=
                                                    ~View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
                                        }
                                        mWindowManagerFuncs.reevaluateStatusBarVisibility();
                                    }
                                }, 1000);
                            }
                        }
                        if (changed) {
                            mWindowManagerFuncs.reevaluateStatusBarVisibility();
                        }
                    }
                }
            } finally {
                finishInputEvent(event, handled);
            }
        }
    }
    final InputEventReceiver.Factory mHideNavInputEventReceiverFactory =
            new InputEventReceiver.Factory() {
        @Override
        public InputEventReceiver createInputEventReceiver(
                InputChannel inputChannel, Looper looper) {
            return new HideNavInputEventReceiver(inputChannel, looper);
        }
    };

    @Override
    public int adjustSystemUiVisibilityLw(int visibility) {
        // Reset any bits in mForceClearingStatusBarVisibility that
        // are now clear.
        mResettingSystemUiFlags &= visibility;
        // Clear any bits in the new visibility that are currently being
        // force cleared, before reporting it.
        return visibility & ~mResettingSystemUiFlags
                & ~mForceClearedSystemUiFlags;
    }

    @Override
    public void getContentInsetHintLw(WindowManager.LayoutParams attrs, Rect contentInset) {
        final int fl = attrs.flags;
        final int systemUiVisibility = (attrs.systemUiVisibility|attrs.subtreeSystemUiVisibility);

        if ((fl & (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR))
                == (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR)) {
            int availRight, availBottom;
            if (mCanHideNavigationBar &&
                    (systemUiVisibility & View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION) != 0) {
                availRight = mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
                availBottom = mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
            } else {
                availRight = mRestrictedScreenLeft + mRestrictedScreenWidth;
                availBottom = mRestrictedScreenTop + mRestrictedScreenHeight;
            }
            if ((systemUiVisibility & View.SYSTEM_UI_FLAG_LAYOUT_STABLE) != 0) {
                if ((fl & FLAG_FULLSCREEN) != 0) {
                    contentInset.set(mStableFullscreenLeft, mStableFullscreenTop,
                            availRight - mStableFullscreenRight,
                            availBottom - mStableFullscreenBottom);
                } else {
                    contentInset.set(mStableLeft, mStableTop,
                            availRight - mStableRight, availBottom - mStableBottom);
                }
            } else if ((fl & FLAG_FULLSCREEN) != 0 || (fl & FLAG_LAYOUT_IN_OVERSCAN) != 0) {
                contentInset.setEmpty();
            } else if ((systemUiVisibility & (View.SYSTEM_UI_FLAG_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN)) == 0) {
                contentInset.set(mCurLeft, mCurTop,
                        availRight - mCurRight, availBottom - mCurBottom);
            } else {
                contentInset.set(mCurLeft, mCurTop,
                        availRight - mCurRight, availBottom - mCurBottom);
            }
            return;
        }
        contentInset.setEmpty();
    }

    /** {@inheritDoc} */
    @Override
    public void beginLayoutLw(boolean isDefaultDisplay, int displayWidth, int displayHeight,
                              int displayRotation) {
        final int overscanLeft, overscanTop, overscanRight, overscanBottom;
        if (isDefaultDisplay) {
            switch (displayRotation) {
                case Surface.ROTATION_90:
                    overscanLeft = mOverscanTop;
                    overscanTop = mOverscanRight;
                    overscanRight = mOverscanBottom;
                    overscanBottom = mOverscanLeft;
                    break;
                case Surface.ROTATION_180:
                    overscanLeft = mOverscanRight;
                    overscanTop = mOverscanBottom;
                    overscanRight = mOverscanLeft;
                    overscanBottom = mOverscanTop;
                    break;
                case Surface.ROTATION_270:
                    overscanLeft = mOverscanBottom;
                    overscanTop = mOverscanLeft;
                    overscanRight = mOverscanTop;
                    overscanBottom = mOverscanRight;
                    break;
                default:
                    overscanLeft = mOverscanLeft;
                    overscanTop = mOverscanTop;
                    overscanRight = mOverscanRight;
                    overscanBottom = mOverscanBottom;
                    break;
            }
        } else {
            overscanLeft = 0;
            overscanTop = 0;
            overscanRight = 0;
            overscanBottom = 0;
        }
        mOverscanScreenLeft = mRestrictedOverscanScreenLeft = 0;
        mOverscanScreenTop = mRestrictedOverscanScreenTop = 0;
        mOverscanScreenWidth = mRestrictedOverscanScreenWidth = displayWidth;
        mOverscanScreenHeight = mRestrictedOverscanScreenHeight = displayHeight;
        mSystemLeft = 0;
        mSystemTop = 0;
        mSystemRight = displayWidth;
        mSystemBottom = displayHeight;
        mUnrestrictedScreenLeft = overscanLeft;
        mUnrestrictedScreenTop = overscanTop;
        mUnrestrictedScreenWidth = displayWidth - overscanLeft - overscanRight;
        mUnrestrictedScreenHeight = displayHeight - overscanTop - overscanBottom;
        mRestrictedScreenLeft = mUnrestrictedScreenLeft;
        mRestrictedScreenTop = mUnrestrictedScreenTop;
        mRestrictedScreenWidth = mUnrestrictedScreenWidth;
        mRestrictedScreenHeight = mUnrestrictedScreenHeight;
        mDockLeft = mContentLeft = mStableLeft = mStableFullscreenLeft
                = mCurLeft = mUnrestrictedScreenLeft;
        mDockTop = mContentTop = mStableTop = mStableFullscreenTop
                = mCurTop = mUnrestrictedScreenTop;
        mDockRight = mContentRight = mStableRight = mStableFullscreenRight
                = mCurRight = displayWidth - overscanRight;
        mDockBottom = mContentBottom = mStableBottom = mStableFullscreenBottom
                = mCurBottom = displayHeight - overscanBottom;
        mDockLayer = 0x10000000;
        mStatusBarLayer = -1;

        // start with the current dock rect, which will be (0,0,displayWidth,displayHeight)
        final Rect pf = mTmpParentFrame;
        final Rect df = mTmpDisplayFrame;
        final Rect of = mTmpOverscanFrame;
        final Rect vf = mTmpVisibleFrame;
        pf.left = df.left = of.left = vf.left = mDockLeft;
        pf.top = df.top = of.top = vf.top = mDockTop;
        pf.right = df.right = of.right = vf.right = mDockRight;
        pf.bottom = df.bottom = of.bottom = vf.bottom = mDockBottom;

        if (isDefaultDisplay) {
            // For purposes of putting out fake window up to steal focus, we will
            // drive nav being hidden only by whether it is requested.
            boolean navVisible = (mLastSystemUiFlags&View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0;

            // When the navigation bar isn't visible, we put up a fake
            // input window to catch all touch events.  This way we can
            // detect when the user presses anywhere to bring back the nav
            // bar and ensure the application doesn't see the event.
            if (navVisible) {
                if (mHideNavFakeWindow != null) {
                    mHideNavFakeWindow.dismiss();
                    mHideNavFakeWindow = null;
                }
            } else if (mHideNavFakeWindow == null) {
                mHideNavFakeWindow = mWindowManagerFuncs.addFakeWindow(
                        mHandler.getLooper(), mHideNavInputEventReceiverFactory,
                        "hidden nav", WindowManager.LayoutParams.TYPE_HIDDEN_NAV_CONSUMER,
                        0, false, false, true);
            }

            // For purposes of positioning and showing the nav bar, if we have
            // decided that it can't be hidden (because of the screen aspect ratio),
            // then take that into account.
            navVisible |= !mCanHideNavigationBar;

            if (mNavigationBar != null) {
                // Force the navigation bar to its appropriate place and
                // size.  We need to do this directly, instead of relying on
                // it to bubble up from the nav bar, because this needs to
                // change atomically with screen rotations.
                mNavigationBarOnBottom = (!mNavigationBarCanMove || displayWidth < displayHeight);
                if (mNavigationBarOnBottom) {
                    // It's a system nav bar or a portrait screen; nav bar goes on bottom.
                    int top = displayHeight - overscanBottom
                            - mNavigationBarHeightForRotation[displayRotation];
                    mTmpNavigationFrame.set(0, top, displayWidth, displayHeight - overscanBottom);
                    mStableBottom = mStableFullscreenBottom = mTmpNavigationFrame.top;
                    if (navVisible) {
                        mNavigationBar.showLw(true);
                        mDockBottom = mTmpNavigationFrame.top;
                        mRestrictedScreenHeight = mDockBottom - mRestrictedScreenTop;
                        mRestrictedOverscanScreenHeight = mDockBottom - mRestrictedOverscanScreenTop;
                    } else {
                        // We currently want to hide the navigation UI.
                        mNavigationBar.hideLw(true);
                    }
                    if (navVisible && !mNavigationBar.isAnimatingLw()) {
                        // If the nav bar is currently requested to be visible,
                        // and not in the process of animating on or off, then
                        // we can tell the app that it is covered by it.
                        mSystemBottom = mTmpNavigationFrame.top;
                    }
                } else {
                    // Landscape screen; nav bar goes to the right.
                    int left = displayWidth - overscanRight
                            - mNavigationBarWidthForRotation[displayRotation];
                    mTmpNavigationFrame.set(left, 0, displayWidth - overscanRight, displayHeight);
                    mStableRight = mStableFullscreenRight = mTmpNavigationFrame.left;
                    if (navVisible) {
                        mNavigationBar.showLw(true);
                        mDockRight = mTmpNavigationFrame.left;
                        mRestrictedScreenWidth = mDockRight - mRestrictedScreenLeft;
                        mRestrictedOverscanScreenWidth = mDockRight - mRestrictedOverscanScreenLeft;
                    } else {
                        // We currently want to hide the navigation UI.
                        mNavigationBar.hideLw(true);
                    }
                    if (navVisible && !mNavigationBar.isAnimatingLw()) {
                        // If the nav bar is currently requested to be visible,
                        // and not in the process of animating on or off, then
                        // we can tell the app that it is covered by it.
                        mSystemRight = mTmpNavigationFrame.left;
                    }
                }
                // Make sure the content and current rectangles are updated to
                // account for the restrictions from the navigation bar.
                mContentTop = mCurTop = mDockTop;
                mContentBottom = mCurBottom = mDockBottom;
                mContentLeft = mCurLeft = mDockLeft;
                mContentRight = mCurRight = mDockRight;
                mStatusBarLayer = mNavigationBar.getSurfaceLayer();
                // And compute the final frame.
                mNavigationBar.computeFrameLw(mTmpNavigationFrame, mTmpNavigationFrame,
                        mTmpNavigationFrame, mTmpNavigationFrame, mTmpNavigationFrame);
                if (DEBUG_LAYOUT) Log.i(TAG, "mNavigationBar frame: " + mTmpNavigationFrame);
            }
            if (DEBUG_LAYOUT) Log.i(TAG, String.format("mDock rect: (%d,%d - %d,%d)",
                    mDockLeft, mDockTop, mDockRight, mDockBottom));

            // decide where the status bar goes ahead of time
            if (mStatusBar != null) {
                // apply any navigation bar insets
                pf.left = df.left = of.left = mUnrestrictedScreenLeft;
                pf.top = df.top = of.top = mUnrestrictedScreenTop;
                pf.right = df.right = of.right = mUnrestrictedScreenWidth + mUnrestrictedScreenLeft;
                pf.bottom = df.bottom = of.bottom = mUnrestrictedScreenHeight
                        + mUnrestrictedScreenTop;
                vf.left = mStableLeft;
                vf.top = mStableTop;
                vf.right = mStableRight;
                vf.bottom = mStableBottom;

                mStatusBarLayer = mStatusBar.getSurfaceLayer();

                // Let the status bar determine its size.
                mStatusBar.computeFrameLw(pf, df, vf, vf, vf);

                // For layout, the status bar is always at the top with our fixed height.
                mStableTop = mUnrestrictedScreenTop + mStatusBarHeight;

                // If the status bar is hidden, we don't want to cause
                // windows behind it to scroll.
                if (mStatusBar.isVisibleLw()) {
                    // Status bar may go away, so the screen area it occupies
                    // is available to apps but just covering them when the
                    // status bar is visible.
                    mDockTop = mUnrestrictedScreenTop + mStatusBarHeight;

                    mContentTop = mCurTop = mDockTop;
                    mContentBottom = mCurBottom = mDockBottom;
                    mContentLeft = mCurLeft = mDockLeft;
                    mContentRight = mCurRight = mDockRight;

                    if (DEBUG_LAYOUT) Log.v(TAG, "Status bar: " +
                        String.format(
                            "dock=[%d,%d][%d,%d] content=[%d,%d][%d,%d] cur=[%d,%d][%d,%d]",
                            mDockLeft, mDockTop, mDockRight, mDockBottom,
                            mContentLeft, mContentTop, mContentRight, mContentBottom,
                            mCurLeft, mCurTop, mCurRight, mCurBottom));
                }
                if (mStatusBar.isVisibleLw() && !mStatusBar.isAnimatingLw()) {
                    // If the status bar is currently requested to be visible,
                    // and not in the process of animating on or off, then
                    // we can tell the app that it is covered by it.
                    mSystemTop = mUnrestrictedScreenTop + mStatusBarHeight;
                }
            }
        }
    }

    /** {@inheritDoc} */
    public int getSystemDecorRectLw(Rect systemRect) {
        systemRect.left = mSystemLeft;
        systemRect.top = mSystemTop;
        systemRect.right = mSystemRight;
        systemRect.bottom = mSystemBottom;
        if (mStatusBar != null) return mStatusBar.getSurfaceLayer();
        if (mNavigationBar != null) return mNavigationBar.getSurfaceLayer();
        return 0;
    }

    void setAttachedWindowFrames(WindowState win, int fl, int adjust, WindowState attached,
            boolean insetDecors, Rect pf, Rect df, Rect of, Rect cf, Rect vf) {
        if (win.getSurfaceLayer() > mDockLayer && attached.getSurfaceLayer() < mDockLayer) {
            // Here's a special case: if this attached window is a panel that is
            // above the dock window, and the window it is attached to is below
            // the dock window, then the frames we computed for the window it is
            // attached to can not be used because the dock is effectively part
            // of the underlying window and the attached window is floating on top
            // of the whole thing.  So, we ignore the attached window and explicitly
            // compute the frames that would be appropriate without the dock.
            df.left = of.left = cf.left = vf.left = mDockLeft;
            df.top = of.top = cf.top = vf.top = mDockTop;
            df.right = of.right = cf.right = vf.right = mDockRight;
            df.bottom = of.bottom = cf.bottom = vf.bottom = mDockBottom;
        } else {
            // The effective display frame of the attached window depends on
            // whether it is taking care of insetting its content.  If not,
            // we need to use the parent's content frame so that the entire
            // window is positioned within that content.  Otherwise we can use
            // the display frame and let the attached window take care of
            // positioning its content appropriately.
            if (adjust != SOFT_INPUT_ADJUST_RESIZE) {
                cf.set(attached.getOverscanFrameLw());
            } else {
                // If the window is resizing, then we want to base the content
                // frame on our attached content frame to resize...  however,
                // things can be tricky if the attached window is NOT in resize
                // mode, in which case its content frame will be larger.
                // Ungh.  So to deal with that, make sure the content frame
                // we end up using is not covering the IM dock.
                cf.set(attached.getContentFrameLw());
                if (attached.getSurfaceLayer() < mDockLayer) {
                    if (cf.left < mContentLeft) cf.left = mContentLeft;
                    if (cf.top < mContentTop) cf.top = mContentTop;
                    if (cf.right > mContentRight) cf.right = mContentRight;
                    if (cf.bottom > mContentBottom) cf.bottom = mContentBottom;
                }
            }
            df.set(insetDecors ? attached.getDisplayFrameLw() : cf);
            of.set(insetDecors ? attached.getOverscanFrameLw() : cf);
            vf.set(attached.getVisibleFrameLw());
        }
        // The LAYOUT_IN_SCREEN flag is used to determine whether the attached
        // window should be positioned relative to its parent or the entire
        // screen.
        pf.set((fl & FLAG_LAYOUT_IN_SCREEN) == 0
                ? attached.getFrameLw() : df);
    }

    private void applyStableConstraints(int sysui, int fl, Rect r) {
        if ((sysui & View.SYSTEM_UI_FLAG_LAYOUT_STABLE) != 0) {
            // If app is requesting a stable layout, don't let the
            // content insets go below the stable values.
            if ((fl & FLAG_FULLSCREEN) != 0) {
                if (r.left < mStableFullscreenLeft) r.left = mStableFullscreenLeft;
                if (r.top < mStableFullscreenTop) r.top = mStableFullscreenTop;
                if (r.right > mStableFullscreenRight) r.right = mStableFullscreenRight;
                if (r.bottom > mStableFullscreenBottom) r.bottom = mStableFullscreenBottom;
            } else {
                if (r.left < mStableLeft) r.left = mStableLeft;
                if (r.top < mStableTop) r.top = mStableTop;
                if (r.right > mStableRight) r.right = mStableRight;
                if (r.bottom > mStableBottom) r.bottom = mStableBottom;
            }
        }
    }

    /** {@inheritDoc} */
    @Override
    public void layoutWindowLw(WindowState win, WindowManager.LayoutParams attrs,
            WindowState attached) {
        // we've already done the status bar
        if (win == mStatusBar || win == mNavigationBar) {
            return;
        }
        final boolean isDefaultDisplay = win.isDefaultDisplay();
        final boolean needsToOffsetInputMethodTarget = isDefaultDisplay &&
                (win == mLastInputMethodTargetWindow && mLastInputMethodWindow != null);
        if (needsToOffsetInputMethodTarget) {
            if (DEBUG_LAYOUT) {
                Slog.i(TAG, "Offset ime target window by the last ime window state");
            }
            offsetInputMethodWindowLw(mLastInputMethodWindow);
        }

        final int fl = attrs.flags;
        final int sim = attrs.softInputMode;
        final int sysUiFl = win.getSystemUiVisibility();

        final Rect pf = mTmpParentFrame;
        final Rect df = mTmpDisplayFrame;
        final Rect of = mTmpOverscanFrame;
        final Rect cf = mTmpContentFrame;
        final Rect vf = mTmpVisibleFrame;

        final boolean hasNavBar = (isDefaultDisplay && mHasNavigationBar
                && mNavigationBar != null && mNavigationBar.isVisibleLw());

        final int adjust = sim & SOFT_INPUT_MASK_ADJUST;

        if (!isDefaultDisplay) {
            if (attached != null) {
                // If this window is attached to another, our display
                // frame is the same as the one we are attached to.
                setAttachedWindowFrames(win, fl, adjust, attached, true, pf, df, of, cf, vf);
            } else {
                // Give the window full screen.
                pf.left = df.left = of.left = cf.left = mOverscanScreenLeft;
                pf.top = df.top = of.top = cf.top = mOverscanScreenTop;
                pf.right = df.right = of.right = cf.right
                        = mOverscanScreenLeft + mOverscanScreenWidth;
                pf.bottom = df.bottom = of.bottom = cf.bottom
                        = mOverscanScreenTop + mOverscanScreenHeight;
            }
        } else  if (attrs.type == TYPE_INPUT_METHOD) {
            pf.left = df.left = of.left = cf.left = vf.left = mDockLeft;
            pf.top = df.top = of.top = cf.top = vf.top = mDockTop;
            pf.right = df.right = of.right = cf.right = vf.right = mDockRight;
            pf.bottom = df.bottom = of.bottom = cf.bottom = vf.bottom = mDockBottom;
            // IM dock windows always go to the bottom of the screen.
            attrs.gravity = Gravity.BOTTOM;
            mDockLayer = win.getSurfaceLayer();
        } else {
            if ((fl & (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR))
                    == (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR)) {
                if (DEBUG_LAYOUT)
                    Log.v(TAG, "layoutWindowLw(" + attrs.getTitle()
                            + "): IN_SCREEN, INSET_DECOR");
                // This is the case for a normal activity window: we want it
                // to cover all of the screen space, and it can take care of
                // moving its contents to account for screen decorations that
                // intrude into that space.
                if (attached != null) {
                    // If this window is attached to another, our display
                    // frame is the same as the one we are attached to.
                    setAttachedWindowFrames(win, fl, adjust, attached, true, pf, df, of, cf, vf);
                } else {
                    if (attrs.type == TYPE_STATUS_BAR_PANEL
                            || attrs.type == TYPE_STATUS_BAR_SUB_PANEL) {
                        // Status bar panels are the only windows who can go on top of
                        // the status bar.  They are protected by the STATUS_BAR_SERVICE
                        // permission, so they have the same privileges as the status
                        // bar itself.
                        //
                        // However, they should still dodge the navigation bar if it exists.

                        pf.left = df.left = of.left = hasNavBar
                                ? mDockLeft : mUnrestrictedScreenLeft;
                        pf.top = df.top = of.top = mUnrestrictedScreenTop;
                        pf.right = df.right = of.right = hasNavBar
                                ? mRestrictedScreenLeft+mRestrictedScreenWidth
                                : mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
                        pf.bottom = df.bottom = of.bottom = hasNavBar
                                ? mRestrictedScreenTop+mRestrictedScreenHeight
                                : mUnrestrictedScreenTop + mUnrestrictedScreenHeight;

                        if (DEBUG_LAYOUT) {
                            Log.v(TAG, String.format(
                                        "Laying out status bar window: (%d,%d - %d,%d)",
                                        pf.left, pf.top, pf.right, pf.bottom));
                        }
                    } else if ((attrs.flags&FLAG_LAYOUT_IN_OVERSCAN) != 0
                            && attrs.type >= WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW
                            && attrs.type <= WindowManager.LayoutParams.LAST_SUB_WINDOW) {
                        // Asking to layout into the overscan region, so give it that pure
                        // unrestricted area.
                        pf.left = df.left = of.left = mOverscanScreenLeft;
                        pf.top = df.top = of.top = mOverscanScreenTop;
                        pf.right = df.right = of.right = mOverscanScreenLeft + mOverscanScreenWidth;
                        pf.bottom = df.bottom = of.bottom = mOverscanScreenTop
                                + mOverscanScreenHeight;
                    } else if (mCanHideNavigationBar
                            && (sysUiFl & View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION) != 0
                            && attrs.type >= WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW
                            && attrs.type <= WindowManager.LayoutParams.LAST_SUB_WINDOW) {
                        // Asking for layout as if the nav bar is hidden, lets the
                        // application extend into the unrestricted overscan screen area.  We
                        // only do this for application windows to ensure no window that
                        // can be above the nav bar can do this.
                        pf.left = df.left = mOverscanScreenLeft;
                        pf.top = df.top = mOverscanScreenTop;
                        pf.right = df.right = mOverscanScreenLeft + mOverscanScreenWidth;
                        pf.bottom = df.bottom = mOverscanScreenTop + mOverscanScreenHeight;
                        // We need to tell the app about where the frame inside the overscan
                        // is, so it can inset its content by that amount -- it didn't ask
                        // to actually extend itself into the overscan region.
                        of.left = mUnrestrictedScreenLeft;
                        of.top = mUnrestrictedScreenTop;
                        of.right = mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
                        of.bottom = mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
                    } else {
                        pf.left = df.left = mRestrictedOverscanScreenLeft;
                        pf.top = df.top = mRestrictedOverscanScreenTop;
                        pf.right = df.right = mRestrictedOverscanScreenLeft
                                + mRestrictedOverscanScreenWidth;
                        pf.bottom = df.bottom = mRestrictedOverscanScreenTop
                                + mRestrictedOverscanScreenHeight;
                        // We need to tell the app about where the frame inside the overscan
                        // is, so it can inset its content by that amount -- it didn't ask
                        // to actually extend itself into the overscan region.
                        of.left = mUnrestrictedScreenLeft;
                        of.top = mUnrestrictedScreenTop;
                        of.right = mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
                        of.bottom = mUnrestrictedScreenTop + mUnrestrictedScreenHeight;
                    }

                    if ((attrs.flags&FLAG_FULLSCREEN) == 0) {
                        if (adjust != SOFT_INPUT_ADJUST_RESIZE) {
                            cf.left = mDockLeft;
                            cf.top = mDockTop;
                            cf.right = mDockRight;
                            cf.bottom = mDockBottom;
                        } else {
                            cf.left = mContentLeft;
                            cf.top = mContentTop;
                            cf.right = mContentRight;
                            cf.bottom = mContentBottom;
                        }
                    } else {
                        // Full screen windows are always given a layout that is as if the
                        // status bar and other transient decors are gone.  This is to avoid
                        // bad states when moving from a window that is not hding the
                        // status bar to one that is.
                        cf.left = mRestrictedScreenLeft;
                        cf.top = mRestrictedScreenTop;
                        cf.right = mRestrictedScreenLeft + mRestrictedScreenWidth;
                        cf.bottom = mRestrictedScreenTop + mRestrictedScreenHeight;
                    }

                    applyStableConstraints(sysUiFl, fl, cf);
                    if (adjust != SOFT_INPUT_ADJUST_NOTHING) {
                        vf.left = mCurLeft;
                        vf.top = mCurTop;
                        vf.right = mCurRight;
                        vf.bottom = mCurBottom;
                    } else {
                        vf.set(cf);
                    }
                }
            } else if ((fl & FLAG_LAYOUT_IN_SCREEN) != 0 || (sysUiFl
                    & (View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                            | View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION)) != 0) {
                if (DEBUG_LAYOUT)
                    Log.v(TAG, "layoutWindowLw(" + attrs.getTitle() + "): IN_SCREEN");
                // A window that has requested to fill the entire screen just
                // gets everything, period.
                if (attrs.type == TYPE_STATUS_BAR_PANEL
                        || attrs.type == TYPE_STATUS_BAR_SUB_PANEL) {
                    pf.left = df.left = of.left = cf.left = hasNavBar
                            ? mDockLeft : mUnrestrictedScreenLeft;
                    pf.top = df.top = of.top = cf.top = mUnrestrictedScreenTop;
                    pf.right = df.right = of.right = cf.right = hasNavBar
                                        ? mRestrictedScreenLeft+mRestrictedScreenWidth
                                        : mUnrestrictedScreenLeft + mUnrestrictedScreenWidth;
                    pf.bottom = df.bottom = of.bottom = cf.bottom = hasNavBar
                                          ? mRestrictedScreenTop+mRestrictedScreenHeight