PhoneWindowManager.java revision e90585f89d550a61e3efd5050efdc5be2be494af 
1/*
2 * Copyright (C) 2006 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.internal.policy.impl;
18
19import android.app.Activity;
20import android.app.ActivityManager;
21import android.app.ActivityManagerNative;
22import android.app.IUiModeManager;
23import android.app.ProgressDialog;
24import android.app.UiModeManager;
25import android.content.ActivityNotFoundException;
26import android.content.BroadcastReceiver;
27import android.content.ComponentName;
28import android.content.ContentResolver;
29import android.content.Context;
30import android.content.Intent;
31import android.content.IntentFilter;
32import android.content.ServiceConnection;
33import android.content.pm.ActivityInfo;
34import android.content.pm.PackageManager;
35import android.content.res.CompatibilityInfo;
36import android.content.res.Configuration;
37import android.content.res.Resources;
38import android.database.ContentObserver;
39import android.graphics.PixelFormat;
40import android.graphics.Rect;
41import android.graphics.RectF;
42import android.media.AudioManager;
43import android.media.IAudioService;
44import android.os.BatteryManager;
45import android.os.Bundle;
46import android.os.Handler;
47import android.os.IBinder;
48import android.os.IRemoteCallback;
49import android.os.LocalPowerManager;
50import android.os.Looper;
51import android.os.Message;
52import android.os.Messenger;
53import android.os.PowerManager;
54import android.os.RemoteException;
55import android.os.ServiceManager;
56import android.os.SystemClock;
57import android.os.SystemProperties;
58import android.os.UEventObserver;
59import android.os.Vibrator;
60import android.provider.Settings;
61
62import com.android.internal.R;
63import com.android.internal.app.ShutdownThread;
64import com.android.internal.policy.PolicyManager;
65import com.android.internal.statusbar.IStatusBarService;
66import com.android.internal.telephony.ITelephony;
67import com.android.internal.widget.PointerLocationView;
68
69import android.speech.RecognizerIntent;
70import android.util.DisplayMetrics;
71import android.util.EventLog;
72import android.util.Log;
73import android.util.Slog;
74import android.util.SparseArray;
75import android.view.Gravity;
76import android.view.HapticFeedbackConstants;
77import android.view.IApplicationToken;
78import android.view.IWindowManager;
79import android.view.InputChannel;
80import android.view.InputDevice;
81import android.view.InputEvent;
82import android.view.InputEventReceiver;
83import android.view.KeyCharacterMap;
84import android.view.KeyEvent;
85import android.view.MotionEvent;
86import android.view.WindowOrientationListener;
87import android.view.Surface;
88import android.view.View;
89import android.view.ViewConfiguration;
90import android.view.Window;
91import android.view.WindowManager;
92import static android.view.WindowManager.LayoutParams.FIRST_APPLICATION_WINDOW;
93import static android.view.WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN;
94import static android.view.WindowManager.LayoutParams.FLAG_FULLSCREEN;
95import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
96import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_INSET_DECOR;
97import static android.view.WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS;
98import static android.view.WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED;
99import static android.view.WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD;
100import static android.view.WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON;
101import static android.view.WindowManager.LayoutParams.SOFT_INPUT_MASK_ADJUST;
102import static android.view.WindowManager.LayoutParams.SOFT_INPUT_ADJUST_RESIZE;
103import static android.view.WindowManager.LayoutParams.SOFT_INPUT_ADJUST_NOTHING;
104import static android.view.WindowManager.LayoutParams.LAST_APPLICATION_WINDOW;
105import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA;
106import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_MEDIA_OVERLAY;
107import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_PANEL;
108import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_SUB_PANEL;
109import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_ATTACHED_DIALOG;
110import static android.view.WindowManager.LayoutParams.TYPE_DRAG;
111import static android.view.WindowManager.LayoutParams.TYPE_HIDDEN_NAV_CONSUMER;
112import static android.view.WindowManager.LayoutParams.TYPE_KEYGUARD;
113import static android.view.WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG;
114import static android.view.WindowManager.LayoutParams.TYPE_PHONE;
115import static android.view.WindowManager.LayoutParams.TYPE_PRIORITY_PHONE;
116import static android.view.WindowManager.LayoutParams.TYPE_SEARCH_BAR;
117import static android.view.WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY;
118import static android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR;
119import static android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL;
120import static android.view.WindowManager.LayoutParams.TYPE_STATUS_BAR_SUB_PANEL;
121import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_DIALOG;
122import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_ALERT;
123import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_ERROR;
124import static android.view.WindowManager.LayoutParams.TYPE_INPUT_METHOD;
125import static android.view.WindowManager.LayoutParams.TYPE_INPUT_METHOD_DIALOG;
126import static android.view.WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY;
127import static android.view.WindowManager.LayoutParams.TYPE_TOAST;
128import static android.view.WindowManager.LayoutParams.TYPE_VOLUME_OVERLAY;
129import static android.view.WindowManager.LayoutParams.TYPE_WALLPAPER;
130import static android.view.WindowManager.LayoutParams.TYPE_POINTER;
131import static android.view.WindowManager.LayoutParams.TYPE_NAVIGATION_BAR;
132import static android.view.WindowManager.LayoutParams.TYPE_BOOT_PROGRESS;
133import android.view.WindowManagerImpl;
134import android.view.WindowManagerPolicy;
135import android.view.KeyCharacterMap.FallbackAction;
136import android.view.accessibility.AccessibilityEvent;
137import android.view.animation.Animation;
138import android.view.animation.AnimationUtils;
139
140import java.io.File;
141import java.io.FileDescriptor;
142import java.io.FileReader;
143import java.io.IOException;
144import java.io.PrintWriter;
145import java.util.ArrayList;
146
147/**
148 * WindowManagerPolicy implementation for the Android phone UI.  This
149 * introduces a new method suffix, Lp, for an internal lock of the
150 * PhoneWindowManager.  This is used to protect some internal state, and
151 * can be acquired with either thw Lw and Li lock held, so has the restrictions
152 * of both of those when held.
153 */
154public class PhoneWindowManager implements WindowManagerPolicy {
155    static final String TAG = "WindowManager";
156    static final boolean DEBUG = false;
157    static final boolean localLOGV = false;
158    static final boolean DEBUG_LAYOUT = false;
159    static final boolean DEBUG_FALLBACK = false;
160    static final boolean SHOW_STARTING_ANIMATIONS = true;
161    static final boolean SHOW_PROCESSES_ON_ALT_MENU = false;
162
163    // Whether to allow dock apps with METADATA_DOCK_HOME to temporarily take over the Home key.
164    // No longer recommended for desk docks; still useful in car docks.
165    static final boolean ENABLE_CAR_DOCK_HOME_CAPTURE = true;
166    static final boolean ENABLE_DESK_DOCK_HOME_CAPTURE = false;
167
168    // Should screen savers use their own timeout, or the SCREEN_OFF_TIMEOUT?
169    static final boolean SEPARATE_TIMEOUT_FOR_SCREEN_SAVER = false;
170
171    static final int LONG_PRESS_POWER_NOTHING = 0;
172    static final int LONG_PRESS_POWER_GLOBAL_ACTIONS = 1;
173    static final int LONG_PRESS_POWER_SHUT_OFF = 2;
174
175    // These need to match the documentation/constant in
176    // core/res/res/values/config.xml
177    static final int LONG_PRESS_HOME_NOTHING = 0;
178    static final int LONG_PRESS_HOME_RECENT_DIALOG = 1;
179    static final int LONG_PRESS_HOME_RECENT_SYSTEM_UI = 2;
180    static final int LONG_PRESS_HOME_VOICE_SEARCH = 3;
181
182    // wallpaper is at the bottom, though the window manager may move it.
183    static final int WALLPAPER_LAYER = 2;
184    static final int APPLICATION_LAYER = 2;
185    static final int PHONE_LAYER = 3;
186    static final int SEARCH_BAR_LAYER = 4;
187    static final int SYSTEM_DIALOG_LAYER = 5;
188    // toasts and the plugged-in battery thing
189    static final int TOAST_LAYER = 6;
190    // SIM errors and unlock.  Not sure if this really should be in a high layer.
191    static final int PRIORITY_PHONE_LAYER = 7;
192    // like the ANR / app crashed dialogs
193    static final int SYSTEM_ALERT_LAYER = 8;
194    // on-screen keyboards and other such input method user interfaces go here.
195    static final int INPUT_METHOD_LAYER = 9;
196    // on-screen keyboards and other such input method user interfaces go here.
197    static final int INPUT_METHOD_DIALOG_LAYER = 10;
198    // the keyguard; nothing on top of these can take focus, since they are
199    // responsible for power management when displayed.
200    static final int KEYGUARD_LAYER = 11;
201    static final int KEYGUARD_DIALOG_LAYER = 12;
202    static final int STATUS_BAR_SUB_PANEL_LAYER = 13;
203    static final int STATUS_BAR_LAYER = 14;
204    static final int STATUS_BAR_PANEL_LAYER = 15;
205    // the on-screen volume indicator and controller shown when the user
206    // changes the device volume
207    static final int VOLUME_OVERLAY_LAYER = 16;
208    // things in here CAN NOT take focus, but are shown on top of everything else.
209    static final int SYSTEM_OVERLAY_LAYER = 17;
210    // the navigation bar, if available, shows atop most things
211    static final int NAVIGATION_BAR_LAYER = 18;
212    // system-level error dialogs
213    static final int SYSTEM_ERROR_LAYER = 19;
214    // the drag layer: input for drag-and-drop is associated with this window,
215    // which sits above all other focusable windows
216    static final int DRAG_LAYER = 20;
217    static final int SECURE_SYSTEM_OVERLAY_LAYER = 21;
218    static final int BOOT_PROGRESS_LAYER = 22;
219    // the (mouse) pointer layer
220    static final int POINTER_LAYER = 23;
221    static final int HIDDEN_NAV_CONSUMER_LAYER = 24;
222
223    static final int APPLICATION_MEDIA_SUBLAYER = -2;
224    static final int APPLICATION_MEDIA_OVERLAY_SUBLAYER = -1;
225    static final int APPLICATION_PANEL_SUBLAYER = 1;
226    static final int APPLICATION_SUB_PANEL_SUBLAYER = 2;
227
228    static public final String SYSTEM_DIALOG_REASON_KEY = "reason";
229    static public final String SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS = "globalactions";
230    static public final String SYSTEM_DIALOG_REASON_RECENT_APPS = "recentapps";
231    static public final String SYSTEM_DIALOG_REASON_HOME_KEY = "homekey";
232
233    // Useful scan codes.
234    private static final int SW_LID = 0x00;
235    private static final int BTN_MOUSE = 0x110;
236
237    /* Table of Application Launch keys.  Maps from key codes to intent categories.
238     *
239     * These are special keys that are used to launch particular kinds of applications,
240     * such as a web browser.  HID defines nearly a hundred of them in the Consumer (0x0C)
241     * usage page.  We don't support quite that many yet...
242     */
243    static SparseArray<String> sApplicationLaunchKeyCategories;
244    static {
245        sApplicationLaunchKeyCategories = new SparseArray<String>();
246        sApplicationLaunchKeyCategories.append(
247                KeyEvent.KEYCODE_EXPLORER, Intent.CATEGORY_APP_BROWSER);
248        sApplicationLaunchKeyCategories.append(
249                KeyEvent.KEYCODE_ENVELOPE, Intent.CATEGORY_APP_EMAIL);
250        sApplicationLaunchKeyCategories.append(
251                KeyEvent.KEYCODE_CONTACTS, Intent.CATEGORY_APP_CONTACTS);
252        sApplicationLaunchKeyCategories.append(
253                KeyEvent.KEYCODE_CALENDAR, Intent.CATEGORY_APP_CALENDAR);
254        sApplicationLaunchKeyCategories.append(
255                KeyEvent.KEYCODE_MUSIC, Intent.CATEGORY_APP_MUSIC);
256        sApplicationLaunchKeyCategories.append(
257                KeyEvent.KEYCODE_CALCULATOR, Intent.CATEGORY_APP_CALCULATOR);
258    }
259
260    /**
261     * Lock protecting internal state.  Must not call out into window
262     * manager with lock held.  (This lock will be acquired in places
263     * where the window manager is calling in with its own lock held.)
264     */
265    final Object mLock = new Object();
266
267    Context mContext;
268    IWindowManager mWindowManager;
269    WindowManagerFuncs mWindowManagerFuncs;
270    LocalPowerManager mPowerManager;
271    IStatusBarService mStatusBarService;
272    Vibrator mVibrator; // Vibrator for giving feedback of orientation changes
273
274    // Vibrator pattern for haptic feedback of a long press.
275    long[] mLongPressVibePattern;
276
277    // Vibrator pattern for haptic feedback of virtual key press.
278    long[] mVirtualKeyVibePattern;
279
280    // Vibrator pattern for a short vibration.
281    long[] mKeyboardTapVibePattern;
282
283    // Vibrator pattern for haptic feedback during boot when safe mode is disabled.
284    long[] mSafeModeDisabledVibePattern;
285
286    // Vibrator pattern for haptic feedback during boot when safe mode is enabled.
287    long[] mSafeModeEnabledVibePattern;
288
289    /** If true, hitting shift & menu will broadcast Intent.ACTION_BUG_REPORT */
290    boolean mEnableShiftMenuBugReports = false;
291
292    boolean mHeadless;
293    boolean mSafeMode;
294    WindowState mStatusBar = null;
295    boolean mStatusBarCanHide;
296    int mStatusBarHeight;
297    final ArrayList<WindowState> mStatusBarPanels = new ArrayList<WindowState>();
298    WindowState mNavigationBar = null;
299    boolean mHasNavigationBar = false;
300    int mNavigationBarWidth = 0, mNavigationBarHeight = 0;
301
302    WindowState mKeyguard = null;
303    KeyguardViewMediator mKeyguardMediator;
304    GlobalActions mGlobalActions;
305    volatile boolean mPowerKeyHandled; // accessed from input reader and handler thread
306    boolean mPendingPowerKeyUpCanceled;
307    Handler mHandler;
308
309    static final int RECENT_APPS_BEHAVIOR_SHOW_OR_DISMISS = 0;
310    static final int RECENT_APPS_BEHAVIOR_EXIT_TOUCH_MODE_AND_SHOW = 1;
311    static final int RECENT_APPS_BEHAVIOR_DISMISS_AND_SWITCH = 2;
312
313    RecentApplicationsDialog mRecentAppsDialog;
314    int mRecentAppsDialogHeldModifiers;
315
316    private static final int LID_ABSENT = -1;
317    private static final int LID_CLOSED = 0;
318    private static final int LID_OPEN = 1;
319
320    int mLidOpen = LID_ABSENT;
321
322    boolean mSystemReady;
323    boolean mSystemBooted;
324    boolean mHdmiPlugged;
325    int mUiMode;
326    int mDockMode = Intent.EXTRA_DOCK_STATE_UNDOCKED;
327    int mLidOpenRotation;
328    int mCarDockRotation;
329    int mDeskDockRotation;
330    int mHdmiRotation;
331
332    int mUserRotationMode = WindowManagerPolicy.USER_ROTATION_FREE;
333    int mUserRotation = Surface.ROTATION_0;
334
335    int mAllowAllRotations = -1;
336    boolean mCarDockEnablesAccelerometer;
337    boolean mDeskDockEnablesAccelerometer;
338    int mLidKeyboardAccessibility;
339    int mLidNavigationAccessibility;
340    int mLongPressOnPowerBehavior = -1;
341    boolean mScreenOnEarly = false;
342    boolean mScreenOnFully = false;
343    boolean mOrientationSensorEnabled = false;
344    int mCurrentAppOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED;
345    static final int DEFAULT_ACCELEROMETER_ROTATION = 0;
346    int mAccelerometerDefault = DEFAULT_ACCELEROMETER_ROTATION;
347    boolean mHasSoftInput = false;
348
349    int mPointerLocationMode = 0;
350    PointerLocationView mPointerLocationView = null;
351    InputChannel mPointerLocationInputChannel;
352
353    // The last window we were told about in focusChanged.
354    WindowState mFocusedWindow;
355    IApplicationToken mFocusedApp;
356
357    final class PointerLocationInputEventReceiver extends InputEventReceiver {
358        public PointerLocationInputEventReceiver(InputChannel inputChannel, Looper looper) {
359            super(inputChannel, looper);
360        }
361
362        @Override
363        public void onInputEvent(InputEvent event) {
364            boolean handled = false;
365            try {
366                if (event instanceof MotionEvent
367                        && (event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
368                    final MotionEvent motionEvent = (MotionEvent)event;
369                    synchronized (mLock) {
370                        if (mPointerLocationView != null) {
371                            mPointerLocationView.addPointerEvent(motionEvent);
372                            handled = true;
373                        }
374                    }
375                }
376            } finally {
377                finishInputEvent(event, handled);
378            }
379        }
380    }
381    PointerLocationInputEventReceiver mPointerLocationInputEventReceiver;
382
383    // The current size of the screen; really; (ir)regardless of whether the status
384    // bar can be hidden or not
385    int mUnrestrictedScreenLeft, mUnrestrictedScreenTop;
386    int mUnrestrictedScreenWidth, mUnrestrictedScreenHeight;
387    // The current size of the screen; these may be different than (0,0)-(dw,dh)
388    // if the status bar can't be hidden; in that case it effectively carves out
389    // that area of the display from all other windows.
390    int mRestrictedScreenLeft, mRestrictedScreenTop;
391    int mRestrictedScreenWidth, mRestrictedScreenHeight;
392    // During layout, the current screen borders with all outer decoration
393    // (status bar, input method dock) accounted for.
394    int mCurLeft, mCurTop, mCurRight, mCurBottom;
395    // During layout, the frame in which content should be displayed
396    // to the user, accounting for all screen decoration except for any
397    // space they deem as available for other content.  This is usually
398    // the same as mCur*, but may be larger if the screen decor has supplied
399    // content insets.
400    int mContentLeft, mContentTop, mContentRight, mContentBottom;
401    // During layout, the current screen borders along which input method
402    // windows are placed.
403    int mDockLeft, mDockTop, mDockRight, mDockBottom;
404    // During layout, the layer at which the doc window is placed.
405    int mDockLayer;
406    int mLastSystemUiFlags;
407    // Bits that we are in the process of clearing, so we want to prevent
408    // them from being set by applications until everything has been updated
409    // to have them clear.
410    int mResettingSystemUiFlags = 0;
411    // Bits that we are currently always keeping cleared.
412    int mForceClearedSystemUiFlags = 0;
413    // What we last reported to system UI about whether the compatibility
414    // menu needs to be displayed.
415    boolean mLastFocusNeedsMenu = false;
416
417    FakeWindow mHideNavFakeWindow = null;
418
419    static final Rect mTmpParentFrame = new Rect();
420    static final Rect mTmpDisplayFrame = new Rect();
421    static final Rect mTmpContentFrame = new Rect();
422    static final Rect mTmpVisibleFrame = new Rect();
423    static final Rect mTmpNavigationFrame = new Rect();
424
425    WindowState mTopFullscreenOpaqueWindowState;
426    boolean mTopIsFullscreen;
427    boolean mForceStatusBar;
428    boolean mHideLockScreen;
429    boolean mDismissKeyguard;
430    boolean mHomePressed;
431    Intent mHomeIntent;
432    Intent mCarDockIntent;
433    Intent mDeskDockIntent;
434    int mShortcutKeyPressed = -1;
435    boolean mConsumeShortcutKeyUp;
436
437    // support for activating the lock screen while the screen is on
438    boolean mAllowLockscreenWhenOn;
439    int mLockScreenTimeout;
440    boolean mLockScreenTimerActive;
441
442    // visual screen saver support
443    int mScreenSaverTimeout = 0;
444    boolean mScreenSaverEnabledByUser = false;
445    boolean mScreenSaverMayRun = true; // false if a wakelock is held
446    boolean mPluggedIn;
447
448    // Behavior of ENDCALL Button.  (See Settings.System.END_BUTTON_BEHAVIOR.)
449    int mEndcallBehavior;
450
451    // Behavior of POWER button while in-call and screen on.
452    // (See Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR.)
453    int mIncallPowerBehavior;
454
455    int mLandscapeRotation = 0;  // default landscape rotation
456    int mSeascapeRotation = 0;   // "other" landscape rotation, 180 degrees from mLandscapeRotation
457    int mPortraitRotation = 0;   // default portrait rotation
458    int mUpsideDownRotation = 0; // "other" portrait rotation
459
460    // What we do when the user long presses on home
461    private int mLongPressOnHomeBehavior = -1;
462
463    // Screenshot trigger states
464    // Time to volume and power must be pressed within this interval of each other.
465    private static final long SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS = 150;
466    private boolean mScreenshotChordEnabled;
467    private boolean mVolumeDownKeyTriggered;
468    private long mVolumeDownKeyTime;
469    private boolean mVolumeDownKeyConsumedByScreenshotChord;
470    private boolean mVolumeUpKeyTriggered;
471    private boolean mPowerKeyTriggered;
472    private long mPowerKeyTime;
473
474    ShortcutManager mShortcutManager;
475    PowerManager.WakeLock mBroadcastWakeLock;
476
477    final KeyCharacterMap.FallbackAction mFallbackAction = new KeyCharacterMap.FallbackAction();
478
479    private UEventObserver mHDMIObserver = new UEventObserver() {
480        @Override
481        public void onUEvent(UEventObserver.UEvent event) {
482            setHdmiPlugged("1".equals(event.get("SWITCH_STATE")));
483        }
484    };
485
486    class SettingsObserver extends ContentObserver {
487        SettingsObserver(Handler handler) {
488            super(handler);
489        }
490
491        void observe() {
492            ContentResolver resolver = mContext.getContentResolver();
493            resolver.registerContentObserver(Settings.System.getUriFor(
494                    Settings.System.END_BUTTON_BEHAVIOR), false, this);
495            resolver.registerContentObserver(Settings.Secure.getUriFor(
496                    Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR), false, this);
497            resolver.registerContentObserver(Settings.System.getUriFor(
498                    Settings.System.ACCELEROMETER_ROTATION), false, this);
499            resolver.registerContentObserver(Settings.System.getUriFor(
500                    Settings.System.USER_ROTATION), false, this);
501            resolver.registerContentObserver(Settings.System.getUriFor(
502                    Settings.System.SCREEN_OFF_TIMEOUT), false, this);
503            resolver.registerContentObserver(Settings.System.getUriFor(
504                    Settings.System.WINDOW_ORIENTATION_LISTENER_LOG), false, this);
505            resolver.registerContentObserver(Settings.System.getUriFor(
506                    Settings.System.POINTER_LOCATION), false, this);
507            resolver.registerContentObserver(Settings.Secure.getUriFor(
508                    Settings.Secure.DEFAULT_INPUT_METHOD), false, this);
509            resolver.registerContentObserver(Settings.System.getUriFor(
510                    "fancy_rotation_anim"), false, this);
511            resolver.registerContentObserver(Settings.Secure.getUriFor(
512                    Settings.Secure.SCREENSAVER_ENABLED), false, this);
513            if (SEPARATE_TIMEOUT_FOR_SCREEN_SAVER) {
514                resolver.registerContentObserver(Settings.Secure.getUriFor(
515                        "screensaver_timeout"), false, this);
516            } // otherwise SCREEN_OFF_TIMEOUT will do nicely
517            updateSettings();
518        }
519
520        @Override public void onChange(boolean selfChange) {
521            updateSettings();
522            updateRotation(false);
523        }
524    }
525
526    class MyOrientationListener extends WindowOrientationListener {
527        MyOrientationListener(Context context) {
528            super(context);
529        }
530
531        @Override
532        public void onProposedRotationChanged(int rotation) {
533            if (localLOGV) Log.v(TAG, "onProposedRotationChanged, rotation=" + rotation);
534            updateRotation(false);
535        }
536    }
537    MyOrientationListener mOrientationListener;
538
539    /*
540     * We always let the sensor be switched on by default except when
541     * the user has explicitly disabled sensor based rotation or when the
542     * screen is switched off.
543     */
544    boolean needSensorRunningLp() {
545        if (mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR
546                || mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR
547                || mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT
548                || mCurrentAppOrientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE) {
549            // If the application has explicitly requested to follow the
550            // orientation, then we need to turn the sensor or.
551            return true;
552        }
553        if ((mCarDockEnablesAccelerometer && mDockMode == Intent.EXTRA_DOCK_STATE_CAR) ||
554                (mDeskDockEnablesAccelerometer && (mDockMode == Intent.EXTRA_DOCK_STATE_DESK
555                        || mDockMode == Intent.EXTRA_DOCK_STATE_LE_DESK
556                        || mDockMode == Intent.EXTRA_DOCK_STATE_HE_DESK))) {
557            // enable accelerometer if we are docked in a dock that enables accelerometer
558            // orientation management,
559            return true;
560        }
561        if (mAccelerometerDefault == 0) {
562            // If the setting for using the sensor by default is enabled, then
563            // we will always leave it on.  Note that the user could go to
564            // a window that forces an orientation that does not use the
565            // sensor and in theory we could turn it off... however, when next
566            // turning it on we won't have a good value for the current
567            // orientation for a little bit, which can cause orientation
568            // changes to lag, so we'd like to keep it always on.  (It will
569            // still be turned off when the screen is off.)
570            return false;
571        }
572        return true;
573    }
574
575    /*
576     * Various use cases for invoking this function
577     * screen turning off, should always disable listeners if already enabled
578     * screen turned on and current app has sensor based orientation, enable listeners
579     * if not already enabled
580     * screen turned on and current app does not have sensor orientation, disable listeners if
581     * already enabled
582     * screen turning on and current app has sensor based orientation, enable listeners if needed
583     * screen turning on and current app has nosensor based orientation, do nothing
584     */
585    void updateOrientationListenerLp() {
586        if (!mOrientationListener.canDetectOrientation()) {
587            // If sensor is turned off or nonexistent for some reason
588            return;
589        }
590        //Could have been invoked due to screen turning on or off or
591        //change of the currently visible window's orientation
592        if (localLOGV) Log.v(TAG, "Screen status="+mScreenOnEarly+
593                ", current orientation="+mCurrentAppOrientation+
594                ", SensorEnabled="+mOrientationSensorEnabled);
595        boolean disable = true;
596        if (mScreenOnEarly) {
597            if (needSensorRunningLp()) {
598                disable = false;
599                //enable listener if not already enabled
600                if (!mOrientationSensorEnabled) {
601                    mOrientationListener.enable();
602                    if(localLOGV) Log.v(TAG, "Enabling listeners");
603                    mOrientationSensorEnabled = true;
604                }
605            }
606        }
607        //check if sensors need to be disabled
608        if (disable && mOrientationSensorEnabled) {
609            mOrientationListener.disable();
610            if(localLOGV) Log.v(TAG, "Disabling listeners");
611            mOrientationSensorEnabled = false;
612        }
613    }
614
615    private void interceptPowerKeyDown(boolean handled) {
616        mPowerKeyHandled = handled;
617        if (!handled) {
618            mHandler.postDelayed(mPowerLongPress, ViewConfiguration.getGlobalActionKeyTimeout());
619        }
620    }
621
622    private boolean interceptPowerKeyUp(boolean canceled) {
623        if (!mPowerKeyHandled) {
624            mHandler.removeCallbacks(mPowerLongPress);
625            return !canceled;
626        }
627        return false;
628    }
629
630    private void cancelPendingPowerKeyAction() {
631        if (!mPowerKeyHandled) {
632            mHandler.removeCallbacks(mPowerLongPress);
633        }
634        if (mPowerKeyTriggered) {
635            mPendingPowerKeyUpCanceled = true;
636        }
637    }
638
639    private void interceptScreenshotChord() {
640        if (mScreenshotChordEnabled
641                && mVolumeDownKeyTriggered && mPowerKeyTriggered && !mVolumeUpKeyTriggered) {
642            final long now = SystemClock.uptimeMillis();
643            if (now <= mVolumeDownKeyTime + SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS
644                    && now <= mPowerKeyTime + SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS) {
645                mVolumeDownKeyConsumedByScreenshotChord = true;
646                cancelPendingPowerKeyAction();
647
648                mHandler.postDelayed(mScreenshotChordLongPress,
649                        ViewConfiguration.getGlobalActionKeyTimeout());
650            }
651        }
652    }
653
654    private void cancelPendingScreenshotChordAction() {
655        mHandler.removeCallbacks(mScreenshotChordLongPress);
656    }
657
658    private final Runnable mPowerLongPress = new Runnable() {
659        public void run() {
660            // The context isn't read
661            if (mLongPressOnPowerBehavior < 0) {
662                mLongPressOnPowerBehavior = mContext.getResources().getInteger(
663                        com.android.internal.R.integer.config_longPressOnPowerBehavior);
664            }
665            switch (mLongPressOnPowerBehavior) {
666            case LONG_PRESS_POWER_NOTHING:
667                break;
668            case LONG_PRESS_POWER_GLOBAL_ACTIONS:
669                mPowerKeyHandled = true;
670                performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false);
671                sendCloseSystemWindows(SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS);
672                showGlobalActionsDialog();
673                break;
674            case LONG_PRESS_POWER_SHUT_OFF:
675                mPowerKeyHandled = true;
676                performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false);
677                sendCloseSystemWindows(SYSTEM_DIALOG_REASON_GLOBAL_ACTIONS);
678                ShutdownThread.shutdown(mContext, true);
679                break;
680            }
681        }
682    };
683
684    private final Runnable mScreenshotChordLongPress = new Runnable() {
685        public void run() {
686            takeScreenshot();
687        }
688    };
689
690    void showGlobalActionsDialog() {
691        if (mGlobalActions == null) {
692            mGlobalActions = new GlobalActions(mContext);
693        }
694        final boolean keyguardShowing = keyguardIsShowingTq();
695        mGlobalActions.showDialog(keyguardShowing, isDeviceProvisioned());
696        if (keyguardShowing) {
697            // since it took two seconds of long press to bring this up,
698            // poke the wake lock so they have some time to see the dialog.
699            mKeyguardMediator.pokeWakelock();
700        }
701    }
702
703    boolean isDeviceProvisioned() {
704        return Settings.Secure.getInt(
705                mContext.getContentResolver(), Settings.Secure.DEVICE_PROVISIONED, 0) != 0;
706    }
707
708    private void handleLongPressOnHome() {
709        // We can't initialize this in init() since the configuration hasn't been loaded yet.
710        if (mLongPressOnHomeBehavior < 0) {
711            mLongPressOnHomeBehavior
712                    = mContext.getResources().getInteger(R.integer.config_longPressOnHomeBehavior);
713            if (mLongPressOnHomeBehavior < LONG_PRESS_HOME_NOTHING ||
714                    mLongPressOnHomeBehavior > LONG_PRESS_HOME_RECENT_SYSTEM_UI) {
715                mLongPressOnHomeBehavior = LONG_PRESS_HOME_NOTHING;
716            }
717            if (hasNavigationBar()) {
718                mLongPressOnHomeBehavior = LONG_PRESS_HOME_VOICE_SEARCH;
719            }
720        }
721
722        if (mLongPressOnHomeBehavior != LONG_PRESS_HOME_NOTHING) {
723            performHapticFeedbackLw(null, HapticFeedbackConstants.LONG_PRESS, false);
724            sendCloseSystemWindows(SYSTEM_DIALOG_REASON_RECENT_APPS);
725
726            // Eat the longpress so it won't dismiss the recent apps dialog when
727            // the user lets go of the home key
728            mHomePressed = false;
729        }
730
731        if (mLongPressOnHomeBehavior == LONG_PRESS_HOME_RECENT_DIALOG) {
732            showOrHideRecentAppsDialog(RECENT_APPS_BEHAVIOR_SHOW_OR_DISMISS);
733        } else if (mLongPressOnHomeBehavior == LONG_PRESS_HOME_RECENT_SYSTEM_UI) {
734            try {
735                mStatusBarService.toggleRecentApps();
736            } catch (RemoteException e) {
737                Slog.e(TAG, "RemoteException when showing recent apps", e);
738            }
739        } else if (mLongPressOnHomeBehavior == LONG_PRESS_HOME_VOICE_SEARCH) {
740            Intent intent = new Intent(RecognizerIntent.ACTION_WEB_SEARCH);
741            try {
742                intent.setFlags(
743                    Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);
744                mContext.startActivity(intent);
745            } catch (ActivityNotFoundException e) {
746                Log.e(TAG, "Unable to launch. tag=" + TAG + " intent=" + intent, e);
747            } catch (SecurityException e) {
748                Log.e(TAG, "PhoneWindowManager does not have the permission to launch " +
749                      "tag=" + TAG + " intent=" + intent, e);
750            }
751        }
752    }
753
754    /**
755     * Create (if necessary) and show or dismiss the recent apps dialog according
756     * according to the requested behavior.
757     */
758    void showOrHideRecentAppsDialog(final int behavior) {
759        mHandler.post(new Runnable() {
760            @Override
761            public void run() {
762                if (mRecentAppsDialog == null) {
763                    mRecentAppsDialog = new RecentApplicationsDialog(mContext);
764                }
765                if (mRecentAppsDialog.isShowing()) {
766                    switch (behavior) {
767                        case RECENT_APPS_BEHAVIOR_SHOW_OR_DISMISS:
768                            mRecentAppsDialog.dismiss();
769                            break;
770                        case RECENT_APPS_BEHAVIOR_DISMISS_AND_SWITCH:
771                            mRecentAppsDialog.dismissAndSwitch();
772                            break;
773                        case RECENT_APPS_BEHAVIOR_EXIT_TOUCH_MODE_AND_SHOW:
774                        default:
775                            break;
776                    }
777                } else {
778                    switch (behavior) {
779                        case RECENT_APPS_BEHAVIOR_SHOW_OR_DISMISS:
780                            mRecentAppsDialog.show();
781                            break;
782                        case RECENT_APPS_BEHAVIOR_EXIT_TOUCH_MODE_AND_SHOW:
783                            try {
784                                mWindowManager.setInTouchMode(false);
785                            } catch (RemoteException e) {
786                            }
787                            mRecentAppsDialog.show();
788                            break;
789                        case RECENT_APPS_BEHAVIOR_DISMISS_AND_SWITCH:
790                        default:
791                            break;
792                    }
793                }
794            }
795        });
796    }
797
798    /** {@inheritDoc} */
799    public void init(Context context, IWindowManager windowManager,
800            WindowManagerFuncs windowManagerFuncs,
801            LocalPowerManager powerManager) {
802        mContext = context;
803        mWindowManager = windowManager;
804        mWindowManagerFuncs = windowManagerFuncs;
805        mPowerManager = powerManager;
806        mHeadless = "1".equals(SystemProperties.get("ro.config.headless", "0"));
807        if (!mHeadless) {
808            // don't create KeyguardViewMediator if headless
809            mKeyguardMediator = new KeyguardViewMediator(context, this, powerManager);
810        }
811        mHandler = new Handler();
812        mOrientationListener = new MyOrientationListener(mContext);
813        try {
814            mOrientationListener.setCurrentRotation(windowManager.getRotation());
815        } catch (RemoteException ex) { }
816        SettingsObserver settingsObserver = new SettingsObserver(mHandler);
817        settingsObserver.observe();
818        mShortcutManager = new ShortcutManager(context, mHandler);
819        mShortcutManager.observe();
820        mUiMode = context.getResources().getInteger(
821                com.android.internal.R.integer.config_defaultUiModeType);
822        mHomeIntent =  new Intent(Intent.ACTION_MAIN, null);
823        mHomeIntent.addCategory(Intent.CATEGORY_HOME);
824        mHomeIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
825                | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
826        mCarDockIntent =  new Intent(Intent.ACTION_MAIN, null);
827        mCarDockIntent.addCategory(Intent.CATEGORY_CAR_DOCK);
828        mCarDockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
829                | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
830        mDeskDockIntent =  new Intent(Intent.ACTION_MAIN, null);
831        mDeskDockIntent.addCategory(Intent.CATEGORY_DESK_DOCK);
832        mDeskDockIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
833                | Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
834
835        PowerManager pm = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
836        mBroadcastWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,
837                "PhoneWindowManager.mBroadcastWakeLock");
838        mEnableShiftMenuBugReports = "1".equals(SystemProperties.get("ro.debuggable"));
839        mLidOpenRotation = readRotation(
840                com.android.internal.R.integer.config_lidOpenRotation);
841        mCarDockRotation = readRotation(
842                com.android.internal.R.integer.config_carDockRotation);
843        mDeskDockRotation = readRotation(
844                com.android.internal.R.integer.config_deskDockRotation);
845        mCarDockEnablesAccelerometer = mContext.getResources().getBoolean(
846                com.android.internal.R.bool.config_carDockEnablesAccelerometer);
847        mDeskDockEnablesAccelerometer = mContext.getResources().getBoolean(
848                com.android.internal.R.bool.config_deskDockEnablesAccelerometer);
849        mLidKeyboardAccessibility = mContext.getResources().getInteger(
850                com.android.internal.R.integer.config_lidKeyboardAccessibility);
851        mLidNavigationAccessibility = mContext.getResources().getInteger(
852                com.android.internal.R.integer.config_lidNavigationAccessibility);
853        // register for dock events
854        IntentFilter filter = new IntentFilter();
855        filter.addAction(UiModeManager.ACTION_ENTER_CAR_MODE);
856        filter.addAction(UiModeManager.ACTION_EXIT_CAR_MODE);
857        filter.addAction(UiModeManager.ACTION_ENTER_DESK_MODE);
858        filter.addAction(UiModeManager.ACTION_EXIT_DESK_MODE);
859        filter.addAction(Intent.ACTION_DOCK_EVENT);
860        Intent intent = context.registerReceiver(mDockReceiver, filter);
861        if (intent != null) {
862            // Retrieve current sticky dock event broadcast.
863            mDockMode = intent.getIntExtra(Intent.EXTRA_DOCK_STATE,
864                    Intent.EXTRA_DOCK_STATE_UNDOCKED);
865        }
866
867        // watch the plug to know whether to trigger the screen saver
868        filter = new IntentFilter();
869        filter.addAction(Intent.ACTION_BATTERY_CHANGED);
870        intent = context.registerReceiver(mPowerReceiver, filter);
871        if (intent != null) {
872            mPluggedIn = (0 != intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0));
873        }
874
875        mVibrator = new Vibrator();
876        mLongPressVibePattern = getLongIntArray(mContext.getResources(),
877                com.android.internal.R.array.config_longPressVibePattern);
878        mVirtualKeyVibePattern = getLongIntArray(mContext.getResources(),
879                com.android.internal.R.array.config_virtualKeyVibePattern);
880        mKeyboardTapVibePattern = getLongIntArray(mContext.getResources(),
881                com.android.internal.R.array.config_keyboardTapVibePattern);
882        mSafeModeDisabledVibePattern = getLongIntArray(mContext.getResources(),
883                com.android.internal.R.array.config_safeModeDisabledVibePattern);
884        mSafeModeEnabledVibePattern = getLongIntArray(mContext.getResources(),
885                com.android.internal.R.array.config_safeModeEnabledVibePattern);
886
887        mScreenshotChordEnabled = mContext.getResources().getBoolean(
888                com.android.internal.R.bool.config_enableScreenshotChord);
889
890        // Controls rotation and the like.
891        initializeHdmiState();
892
893        // Match current screen state.
894        if (mPowerManager.isScreenOn()) {
895            screenTurningOn(null);
896        } else {
897            screenTurnedOff(WindowManagerPolicy.OFF_BECAUSE_OF_USER);
898        }
899    }
900
901    public void setInitialDisplaySize(int width, int height) {
902        int shortSize;
903        if (width > height) {
904            shortSize = height;
905            mLandscapeRotation = Surface.ROTATION_0;
906            mSeascapeRotation = Surface.ROTATION_180;
907            if (mContext.getResources().getBoolean(
908                    com.android.internal.R.bool.config_reverseDefaultRotation)) {
909                mPortraitRotation = Surface.ROTATION_90;
910                mUpsideDownRotation = Surface.ROTATION_270;
911            } else {
912                mPortraitRotation = Surface.ROTATION_270;
913                mUpsideDownRotation = Surface.ROTATION_90;
914            }
915        } else {
916            shortSize = width;
917            mPortraitRotation = Surface.ROTATION_0;
918            mUpsideDownRotation = Surface.ROTATION_180;
919            if (mContext.getResources().getBoolean(
920                    com.android.internal.R.bool.config_reverseDefaultRotation)) {
921                mLandscapeRotation = Surface.ROTATION_270;
922                mSeascapeRotation = Surface.ROTATION_90;
923            } else {
924                mLandscapeRotation = Surface.ROTATION_90;
925                mSeascapeRotation = Surface.ROTATION_270;
926            }
927        }
928
929        // Determine whether the status bar can hide based on the size
930        // of the screen.  We assume sizes > 600dp are tablets where we
931        // will use the system bar.
932        int shortSizeDp = shortSize
933                * DisplayMetrics.DENSITY_DEFAULT
934                / DisplayMetrics.DENSITY_DEVICE;
935        mStatusBarCanHide = shortSizeDp < 600;
936        mStatusBarHeight = mContext.getResources().getDimensionPixelSize(
937                mStatusBarCanHide
938                ? com.android.internal.R.dimen.status_bar_height
939                : com.android.internal.R.dimen.system_bar_height);
940
941        mHasNavigationBar = mContext.getResources().getBoolean(
942                com.android.internal.R.bool.config_showNavigationBar);
943        // Allow a system property to override this. Used by the emulator.
944        // See also hasNavigationBar().
945        String navBarOverride = SystemProperties.get("qemu.hw.mainkeys");
946        if (! "".equals(navBarOverride)) {
947            if      (navBarOverride.equals("1")) mHasNavigationBar = false;
948            else if (navBarOverride.equals("0")) mHasNavigationBar = true;
949        }
950
951        mNavigationBarHeight = mHasNavigationBar
952                ? mContext.getResources().getDimensionPixelSize(
953                    com.android.internal.R.dimen.navigation_bar_height)
954                : 0;
955        mNavigationBarWidth = mHasNavigationBar
956                ? mContext.getResources().getDimensionPixelSize(
957                    com.android.internal.R.dimen.navigation_bar_width)
958                : 0;
959
960        if ("portrait".equals(SystemProperties.get("persist.demo.hdmirotation"))) {
961            mHdmiRotation = mPortraitRotation;
962        } else {
963            mHdmiRotation = mLandscapeRotation;
964        }
965    }
966
967    public void updateSettings() {
968        ContentResolver resolver = mContext.getContentResolver();
969        boolean updateRotation = false;
970        View addView = null;
971        View removeView = null;
972        synchronized (mLock) {
973            mEndcallBehavior = Settings.System.getInt(resolver,
974                    Settings.System.END_BUTTON_BEHAVIOR,
975                    Settings.System.END_BUTTON_BEHAVIOR_DEFAULT);
976            mIncallPowerBehavior = Settings.Secure.getInt(resolver,
977                    Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR,
978                    Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR_DEFAULT);
979            int accelerometerDefault = Settings.System.getInt(resolver,
980                    Settings.System.ACCELEROMETER_ROTATION, DEFAULT_ACCELEROMETER_ROTATION);
981
982            // set up rotation lock state
983            mUserRotationMode = (accelerometerDefault == 0)
984                ? WindowManagerPolicy.USER_ROTATION_LOCKED
985                : WindowManagerPolicy.USER_ROTATION_FREE;
986            mUserRotation = Settings.System.getInt(resolver,
987                    Settings.System.USER_ROTATION,
988                    Surface.ROTATION_0);
989
990            if (mAccelerometerDefault != accelerometerDefault) {
991                mAccelerometerDefault = accelerometerDefault;
992                updateOrientationListenerLp();
993            }
994
995            mOrientationListener.setLogEnabled(
996                    Settings.System.getInt(resolver,
997                            Settings.System.WINDOW_ORIENTATION_LISTENER_LOG, 0) != 0);
998
999            if (mSystemReady) {
1000                int pointerLocation = Settings.System.getInt(resolver,
1001                        Settings.System.POINTER_LOCATION, 0);
1002                if (mPointerLocationMode != pointerLocation) {
1003                    mPointerLocationMode = pointerLocation;
1004                    if (pointerLocation != 0) {
1005                        if (mPointerLocationView == null) {
1006                            mPointerLocationView = new PointerLocationView(mContext);
1007                            mPointerLocationView.setPrintCoords(false);
1008                            addView = mPointerLocationView;
1009                        }
1010                    } else {
1011                        removeView = mPointerLocationView;
1012                        mPointerLocationView = null;
1013                    }
1014                }
1015            }
1016            // use screen off timeout setting as the timeout for the lockscreen
1017            mLockScreenTimeout = Settings.System.getInt(resolver,
1018                    Settings.System.SCREEN_OFF_TIMEOUT, 0);
1019            String imId = Settings.Secure.getString(resolver,
1020                    Settings.Secure.DEFAULT_INPUT_METHOD);
1021            boolean hasSoftInput = imId != null && imId.length() > 0;
1022            if (mHasSoftInput != hasSoftInput) {
1023                mHasSoftInput = hasSoftInput;
1024                updateRotation = true;
1025            }
1026
1027            mScreenSaverEnabledByUser = 0 != Settings.Secure.getInt(resolver,
1028                    Settings.Secure.SCREENSAVER_ENABLED, 1);
1029
1030            if (SEPARATE_TIMEOUT_FOR_SCREEN_SAVER) {
1031                mScreenSaverTimeout = Settings.Secure.getInt(resolver,
1032                        "screensaver_timeout", 0);
1033            } else {
1034                mScreenSaverTimeout = Settings.System.getInt(resolver,
1035                        Settings.System.SCREEN_OFF_TIMEOUT, 0);
1036                if (mScreenSaverTimeout > 0) {
1037                    // We actually want to activate the screensaver just before the
1038                    // power manager's screen timeout
1039                    mScreenSaverTimeout -= 5000;
1040                }
1041            }
1042            updateScreenSaverTimeoutLocked();
1043        }
1044        if (updateRotation) {
1045            updateRotation(true);
1046        }
1047        if (addView != null) {
1048            WindowManager.LayoutParams lp = new WindowManager.LayoutParams(
1049                    WindowManager.LayoutParams.MATCH_PARENT,
1050                    WindowManager.LayoutParams.MATCH_PARENT);
1051            lp.type = WindowManager.LayoutParams.TYPE_SECURE_SYSTEM_OVERLAY;
1052            lp.flags = WindowManager.LayoutParams.FLAG_FULLSCREEN
1053                    | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE
1054                    | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
1055                    | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN;
1056            lp.format = PixelFormat.TRANSLUCENT;
1057            lp.setTitle("PointerLocation");
1058            WindowManager wm = (WindowManager)
1059                    mContext.getSystemService(Context.WINDOW_SERVICE);
1060            lp.inputFeatures |= WindowManager.LayoutParams.INPUT_FEATURE_NO_INPUT_CHANNEL;
1061            wm.addView(addView, lp);
1062
1063            if (mPointerLocationInputChannel == null) {
1064                try {
1065                    mPointerLocationInputChannel =
1066                            mWindowManager.monitorInput("PointerLocationView");
1067                    mPointerLocationInputEventReceiver =
1068                            new PointerLocationInputEventReceiver(
1069                                    mPointerLocationInputChannel, mHandler.getLooper());
1070                } catch (RemoteException ex) {
1071                    Slog.e(TAG, "Could not set up input monitoring channel for PointerLocation.",
1072                            ex);
1073                }
1074            }
1075        }
1076        if (removeView != null) {
1077            if (mPointerLocationInputEventReceiver != null) {
1078                mPointerLocationInputEventReceiver.dispose();
1079                mPointerLocationInputEventReceiver = null;
1080            }
1081            if (mPointerLocationInputChannel != null) {
1082                mPointerLocationInputChannel.dispose();
1083                mPointerLocationInputChannel = null;
1084            }
1085
1086            WindowManager wm = (WindowManager)
1087                    mContext.getSystemService(Context.WINDOW_SERVICE);
1088            wm.removeView(removeView);
1089        }
1090    }
1091
1092    private int readRotation(int resID) {
1093        try {
1094            int rotation = mContext.getResources().getInteger(resID);
1095            switch (rotation) {
1096                case 0:
1097                    return Surface.ROTATION_0;
1098                case 90:
1099                    return Surface.ROTATION_90;
1100                case 180:
1101                    return Surface.ROTATION_180;
1102                case 270:
1103                    return Surface.ROTATION_270;
1104            }
1105        } catch (Resources.NotFoundException e) {
1106            // fall through
1107        }
1108        return -1;
1109    }
1110
1111    /** {@inheritDoc} */
1112    public int checkAddPermission(WindowManager.LayoutParams attrs) {
1113        int type = attrs.type;
1114
1115        if (type < WindowManager.LayoutParams.FIRST_SYSTEM_WINDOW
1116                || type > WindowManager.LayoutParams.LAST_SYSTEM_WINDOW) {
1117            return WindowManagerImpl.ADD_OKAY;
1118        }
1119        String permission = null;
1120        switch (type) {
1121            case TYPE_TOAST:
1122                // XXX right now the app process has complete control over
1123                // this...  should introduce a token to let the system
1124                // monitor/control what they are doing.
1125                break;
1126            case TYPE_INPUT_METHOD:
1127            case TYPE_WALLPAPER:
1128                // The window manager will check these.
1129                break;
1130            case TYPE_PHONE:
1131            case TYPE_PRIORITY_PHONE:
1132            case TYPE_SYSTEM_ALERT:
1133            case TYPE_SYSTEM_ERROR:
1134            case TYPE_SYSTEM_OVERLAY:
1135                permission = android.Manifest.permission.SYSTEM_ALERT_WINDOW;
1136                break;
1137            default:
1138                permission = android.Manifest.permission.INTERNAL_SYSTEM_WINDOW;
1139        }
1140        if (permission != null) {
1141            if (mContext.checkCallingOrSelfPermission(permission)
1142                    != PackageManager.PERMISSION_GRANTED) {
1143                return WindowManagerImpl.ADD_PERMISSION_DENIED;
1144            }
1145        }
1146        return WindowManagerImpl.ADD_OKAY;
1147    }
1148
1149    public void adjustWindowParamsLw(WindowManager.LayoutParams attrs) {
1150        switch (attrs.type) {
1151            case TYPE_SYSTEM_OVERLAY:
1152            case TYPE_SECURE_SYSTEM_OVERLAY:
1153            case TYPE_TOAST:
1154                // These types of windows can't receive input events.
1155                attrs.flags |= WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE
1156                        | WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
1157                attrs.flags &= ~WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH;
1158                break;
1159        }
1160    }
1161
1162    void readLidState() {
1163        try {
1164            int sw = mWindowManager.getSwitchState(SW_LID);
1165            if (sw > 0) {
1166                mLidOpen = LID_OPEN;
1167            } else if (sw == 0) {
1168                mLidOpen = LID_CLOSED;
1169            } else {
1170                mLidOpen = LID_ABSENT;
1171            }
1172        } catch (RemoteException e) {
1173            // Ignore
1174        }
1175    }
1176
1177    private int determineHiddenState(int mode, int hiddenValue, int visibleValue) {
1178        if (mLidOpen != LID_ABSENT) {
1179            switch (mode) {
1180                case 1:
1181                    return mLidOpen == LID_OPEN ? visibleValue : hiddenValue;
1182                case 2:
1183                    return mLidOpen == LID_OPEN ? hiddenValue : visibleValue;
1184            }
1185        }
1186        return visibleValue;
1187    }
1188
1189    /** {@inheritDoc} */
1190    public void adjustConfigurationLw(Configuration config) {
1191        readLidState();
1192        updateKeyboardVisibility();
1193
1194        if (config.keyboard == Configuration.KEYBOARD_NOKEYS) {
1195            config.hardKeyboardHidden = Configuration.HARDKEYBOARDHIDDEN_YES;
1196        } else {
1197            config.hardKeyboardHidden = determineHiddenState(mLidKeyboardAccessibility,
1198                    Configuration.HARDKEYBOARDHIDDEN_YES, Configuration.HARDKEYBOARDHIDDEN_NO);
1199        }
1200
1201        if (config.navigation == Configuration.NAVIGATION_NONAV) {
1202            config.navigationHidden = Configuration.NAVIGATIONHIDDEN_YES;
1203        } else {
1204            config.navigationHidden = determineHiddenState(mLidNavigationAccessibility,
1205                    Configuration.NAVIGATIONHIDDEN_YES, Configuration.NAVIGATIONHIDDEN_NO);
1206        }
1207
1208        if (mHasSoftInput || config.hardKeyboardHidden == Configuration.HARDKEYBOARDHIDDEN_NO) {
1209            config.keyboardHidden = Configuration.KEYBOARDHIDDEN_NO;
1210        } else {
1211            config.keyboardHidden = Configuration.KEYBOARDHIDDEN_YES;
1212        }
1213    }
1214
1215    /** {@inheritDoc} */
1216    public int windowTypeToLayerLw(int type) {
1217        if (type >= FIRST_APPLICATION_WINDOW && type <= LAST_APPLICATION_WINDOW) {
1218            return APPLICATION_LAYER;
1219        }
1220        switch (type) {
1221        case TYPE_STATUS_BAR:
1222            return STATUS_BAR_LAYER;
1223        case TYPE_STATUS_BAR_PANEL:
1224            return STATUS_BAR_PANEL_LAYER;
1225        case TYPE_STATUS_BAR_SUB_PANEL:
1226            return STATUS_BAR_SUB_PANEL_LAYER;
1227        case TYPE_SYSTEM_DIALOG:
1228            return SYSTEM_DIALOG_LAYER;
1229        case TYPE_SEARCH_BAR:
1230            return SEARCH_BAR_LAYER;
1231        case TYPE_PHONE:
1232            return PHONE_LAYER;
1233        case TYPE_KEYGUARD:
1234            return KEYGUARD_LAYER;
1235        case TYPE_KEYGUARD_DIALOG:
1236            return KEYGUARD_DIALOG_LAYER;
1237        case TYPE_SYSTEM_ALERT:
1238            return SYSTEM_ALERT_LAYER;
1239        case TYPE_SYSTEM_ERROR:
1240            return SYSTEM_ERROR_LAYER;
1241        case TYPE_INPUT_METHOD:
1242            return INPUT_METHOD_LAYER;
1243        case TYPE_INPUT_METHOD_DIALOG:
1244            return INPUT_METHOD_DIALOG_LAYER;
1245        case TYPE_VOLUME_OVERLAY:
1246            return VOLUME_OVERLAY_LAYER;
1247        case TYPE_SYSTEM_OVERLAY:
1248            return SYSTEM_OVERLAY_LAYER;
1249        case TYPE_SECURE_SYSTEM_OVERLAY:
1250            return SECURE_SYSTEM_OVERLAY_LAYER;
1251        case TYPE_PRIORITY_PHONE:
1252            return PRIORITY_PHONE_LAYER;
1253        case TYPE_TOAST:
1254            return TOAST_LAYER;
1255        case TYPE_WALLPAPER:
1256            return WALLPAPER_LAYER;
1257        case TYPE_DRAG:
1258            return DRAG_LAYER;
1259        case TYPE_POINTER:
1260            return POINTER_LAYER;
1261        case TYPE_NAVIGATION_BAR:
1262            return NAVIGATION_BAR_LAYER;
1263        case TYPE_BOOT_PROGRESS:
1264            return BOOT_PROGRESS_LAYER;
1265        case TYPE_HIDDEN_NAV_CONSUMER:
1266            return HIDDEN_NAV_CONSUMER_LAYER;
1267        }
1268        Log.e(TAG, "Unknown window type: " + type);
1269        return APPLICATION_LAYER;
1270    }
1271
1272    /** {@inheritDoc} */
1273    public int subWindowTypeToLayerLw(int type) {
1274        switch (type) {
1275        case TYPE_APPLICATION_PANEL:
1276        case TYPE_APPLICATION_ATTACHED_DIALOG:
1277            return APPLICATION_PANEL_SUBLAYER;
1278        case TYPE_APPLICATION_MEDIA:
1279            return APPLICATION_MEDIA_SUBLAYER;
1280        case TYPE_APPLICATION_MEDIA_OVERLAY:
1281            return APPLICATION_MEDIA_OVERLAY_SUBLAYER;
1282        case TYPE_APPLICATION_SUB_PANEL:
1283            return APPLICATION_SUB_PANEL_SUBLAYER;
1284        }
1285        Log.e(TAG, "Unknown sub-window type: " + type);
1286        return 0;
1287    }
1288
1289    public int getMaxWallpaperLayer() {
1290        return STATUS_BAR_LAYER;
1291    }
1292
1293    public boolean canStatusBarHide() {
1294        return mStatusBarCanHide;
1295    }
1296
1297    public int getNonDecorDisplayWidth(int fullWidth, int fullHeight, int rotation) {
1298        // Assumes that the navigation bar appears on the side of the display in landscape.
1299        if (fullWidth > fullHeight) {
1300            return fullWidth - mNavigationBarWidth;
1301        }
1302        return fullWidth;
1303    }
1304
1305    public int getNonDecorDisplayHeight(int fullWidth, int fullHeight, int rotation) {
1306        // Assumes the navigation bar appears on the bottom of the display in portrait.
1307        return fullHeight
1308            - (mStatusBarCanHide ? 0 : mStatusBarHeight)
1309            - ((fullWidth > fullHeight) ? 0 : mNavigationBarHeight);
1310    }
1311
1312    public int getConfigDisplayWidth(int fullWidth, int fullHeight, int rotation) {
1313        return getNonDecorDisplayWidth(fullWidth, fullHeight, rotation);
1314    }
1315
1316    public int getConfigDisplayHeight(int fullWidth, int fullHeight, int rotation) {
1317        // This is the same as getNonDecorDisplayHeight, unless the status bar
1318        // can hide.  If the status bar can hide, we don't count that as part
1319        // of the decor; however for purposes of configurations, we do want to
1320        // exclude it since applications can't generally use that part of the
1321        // screen.
1322        return getNonDecorDisplayHeight(fullWidth, fullHeight, rotation)
1323                - (mStatusBarCanHide ? mStatusBarHeight : 0);
1324    }
1325
1326    public boolean doesForceHide(WindowState win, WindowManager.LayoutParams attrs) {
1327        return attrs.type == WindowManager.LayoutParams.TYPE_KEYGUARD;
1328    }
1329
1330    public boolean canBeForceHidden(WindowState win, WindowManager.LayoutParams attrs) {
1331        return attrs.type != WindowManager.LayoutParams.TYPE_STATUS_BAR
1332                && attrs.type != WindowManager.LayoutParams.TYPE_WALLPAPER;
1333    }
1334
1335    /** {@inheritDoc} */
1336    public View addStartingWindow(IBinder appToken, String packageName, int theme,
1337            CompatibilityInfo compatInfo, CharSequence nonLocalizedLabel, int labelRes,
1338            int icon, int windowFlags) {
1339        if (!SHOW_STARTING_ANIMATIONS) {
1340            return null;
1341        }
1342        if (packageName == null) {
1343            return null;
1344        }
1345
1346        try {
1347            Context context = mContext;
1348            //Log.i(TAG, "addStartingWindow " + packageName + ": nonLocalizedLabel="
1349            //        + nonLocalizedLabel + " theme=" + Integer.toHexString(theme));
1350            if (theme != context.getThemeResId() || labelRes != 0) {
1351                try {
1352                    context = context.createPackageContext(packageName, 0);
1353                    context.setTheme(theme);
1354                } catch (PackageManager.NameNotFoundException e) {
1355                    // Ignore
1356                }
1357            }
1358
1359            Window win = PolicyManager.makeNewWindow(context);
1360            if (win.getWindowStyle().getBoolean(
1361                    com.android.internal.R.styleable.Window_windowDisablePreview, false)) {
1362                return null;
1363            }
1364
1365            Resources r = context.getResources();
1366            win.setTitle(r.getText(labelRes, nonLocalizedLabel));
1367
1368            win.setType(
1369                WindowManager.LayoutParams.TYPE_APPLICATION_STARTING);
1370            // Force the window flags: this is a fake window, so it is not really
1371            // touchable or focusable by the user.  We also add in the ALT_FOCUSABLE_IM
1372            // flag because we do know that the next window will take input
1373            // focus, so we want to get the IME window up on top of us right away.
1374            win.setFlags(
1375                windowFlags|
1376                WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE|
1377                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
1378                WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM,
1379                windowFlags|
1380                WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE|
1381                WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE|
1382                WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
1383
1384            if (!compatInfo.supportsScreen()) {
1385                win.addFlags(WindowManager.LayoutParams.FLAG_COMPATIBLE_WINDOW);
1386            }
1387
1388            win.setLayout(WindowManager.LayoutParams.MATCH_PARENT,
1389                    WindowManager.LayoutParams.MATCH_PARENT);
1390
1391            final WindowManager.LayoutParams params = win.getAttributes();
1392            params.token = appToken;
1393            params.packageName = packageName;
1394            params.windowAnimations = win.getWindowStyle().getResourceId(
1395                    com.android.internal.R.styleable.Window_windowAnimationStyle, 0);
1396            params.privateFlags |=
1397                    WindowManager.LayoutParams.PRIVATE_FLAG_FAKE_HARDWARE_ACCELERATED;
1398            params.setTitle("Starting " + packageName);
1399
1400            WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE);
1401            View view = win.getDecorView();
1402
1403            if (win.isFloating()) {
1404                // Whoops, there is no way to display an animation/preview
1405                // of such a thing!  After all that work...  let's skip it.
1406                // (Note that we must do this here because it is in
1407                // getDecorView() where the theme is evaluated...  maybe
1408                // we should peek the floating attribute from the theme
1409                // earlier.)
1410                return null;
1411            }
1412
1413            if (localLOGV) Log.v(
1414                TAG, "Adding starting window for " + packageName
1415                + " / " + appToken + ": "
1416                + (view.getParent() != null ? view : null));
1417
1418            wm.addView(view, params);
1419
1420            // Only return the view if it was successfully added to the
1421            // window manager... which we can tell by it having a parent.
1422            return view.getParent() != null ? view : null;
1423        } catch (WindowManagerImpl.BadTokenException e) {
1424            // ignore
1425            Log.w(TAG, appToken + " already running, starting window not displayed");
1426        } catch (RuntimeException e) {
1427            // don't crash if something else bad happens, for example a
1428            // failure loading resources because we are loading from an app
1429            // on external storage that has been unmounted.
1430            Log.w(TAG, appToken + " failed creating starting window", e);
1431        }
1432
1433        return null;
1434    }
1435
1436    /** {@inheritDoc} */
1437    public void removeStartingWindow(IBinder appToken, View window) {
1438        // RuntimeException e = new RuntimeException();
1439        // Log.i(TAG, "remove " + appToken + " " + window, e);
1440
1441        if (localLOGV) Log.v(
1442            TAG, "Removing starting window for " + appToken + ": " + window);
1443
1444        if (window != null) {
1445            WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE);
1446            wm.removeView(window);
1447        }
1448    }
1449
1450    /**
1451     * Preflight adding a window to the system.
1452     *
1453     * Currently enforces that three window types are singletons:
1454     * <ul>
1455     * <li>STATUS_BAR_TYPE</li>
1456     * <li>KEYGUARD_TYPE</li>
1457     * </ul>
1458     *
1459     * @param win The window to be added
1460     * @param attrs Information about the window to be added
1461     *
1462     * @return If ok, WindowManagerImpl.ADD_OKAY.  If too many singletons, WindowManagerImpl.ADD_MULTIPLE_SINGLETON
1463     */
1464    public int prepareAddWindowLw(WindowState win, WindowManager.LayoutParams attrs) {
1465        switch (attrs.type) {
1466            case TYPE_STATUS_BAR:
1467                mContext.enforceCallingOrSelfPermission(
1468                        android.Manifest.permission.STATUS_BAR_SERVICE,
1469                        "PhoneWindowManager");
1470                // TODO: Need to handle the race condition of the status bar proc
1471                // dying and coming back before the removeWindowLw cleanup has happened.
1472                if (mStatusBar != null) {
1473                    return WindowManagerImpl.ADD_MULTIPLE_SINGLETON;
1474                }
1475                mStatusBar = win;
1476                break;
1477            case TYPE_NAVIGATION_BAR:
1478                mContext.enforceCallingOrSelfPermission(
1479                        android.Manifest.permission.STATUS_BAR_SERVICE,
1480                        "PhoneWindowManager");
1481                mNavigationBar = win;
1482                if (DEBUG_LAYOUT) Log.i(TAG, "NAVIGATION BAR: " + mNavigationBar);
1483                break;
1484            case TYPE_STATUS_BAR_PANEL:
1485                mContext.enforceCallingOrSelfPermission(
1486                        android.Manifest.permission.STATUS_BAR_SERVICE,
1487                        "PhoneWindowManager");
1488                mStatusBarPanels.add(win);
1489                break;
1490            case TYPE_STATUS_BAR_SUB_PANEL:
1491                mContext.enforceCallingOrSelfPermission(
1492                        android.Manifest.permission.STATUS_BAR_SERVICE,
1493                        "PhoneWindowManager");
1494                mStatusBarPanels.add(win);
1495                break;
1496            case TYPE_KEYGUARD:
1497                if (mKeyguard != null) {
1498                    return WindowManagerImpl.ADD_MULTIPLE_SINGLETON;
1499                }
1500                mKeyguard = win;
1501                break;
1502        }
1503        return WindowManagerImpl.ADD_OKAY;
1504    }
1505
1506    /** {@inheritDoc} */
1507    public void removeWindowLw(WindowState win) {
1508        if (mStatusBar == win) {
1509            mStatusBar = null;
1510        } else if (mKeyguard == win) {
1511            mKeyguard = null;
1512        } else if (mNavigationBar == win) {
1513            mNavigationBar = null;
1514        } else {
1515            mStatusBarPanels.remove(win);
1516        }
1517    }
1518
1519    static final boolean PRINT_ANIM = false;
1520
1521    /** {@inheritDoc} */
1522    public int selectAnimationLw(WindowState win, int transit) {
1523        if (PRINT_ANIM) Log.i(TAG, "selectAnimation in " + win
1524              + ": transit=" + transit);
1525        if (transit == TRANSIT_PREVIEW_DONE) {
1526            if (win.hasAppShownWindows()) {
1527                if (PRINT_ANIM) Log.i(TAG, "**** STARTING EXIT");
1528                return com.android.internal.R.anim.app_starting_exit;
1529            }
1530        }
1531
1532        return 0;
1533    }
1534
1535    public Animation createForceHideEnterAnimation() {
1536        return AnimationUtils.loadAnimation(mContext,
1537                com.android.internal.R.anim.lock_screen_behind_enter);
1538    }
1539
1540    static ITelephony getTelephonyService() {
1541        return ITelephony.Stub.asInterface(
1542                ServiceManager.checkService(Context.TELEPHONY_SERVICE));
1543    }
1544
1545    static IAudioService getAudioService() {
1546        IAudioService audioService = IAudioService.Stub.asInterface(
1547                ServiceManager.checkService(Context.AUDIO_SERVICE));
1548        if (audioService == null) {
1549            Log.w(TAG, "Unable to find IAudioService interface.");
1550        }
1551        return audioService;
1552    }
1553
1554    boolean keyguardOn() {
1555        return keyguardIsShowingTq() || inKeyguardRestrictedKeyInputMode();
1556    }
1557
1558    private static final int[] WINDOW_TYPES_WHERE_HOME_DOESNT_WORK = {
1559            WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
1560            WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
1561        };
1562
1563    /** {@inheritDoc} */
1564    @Override
1565    public long interceptKeyBeforeDispatching(WindowState win, KeyEvent event, int policyFlags) {
1566        final boolean keyguardOn = keyguardOn();
1567        final int keyCode = event.getKeyCode();
1568        final int repeatCount = event.getRepeatCount();
1569        final int metaState = event.getMetaState();
1570        final int flags = event.getFlags();
1571        final boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
1572        final boolean canceled = event.isCanceled();
1573
1574        if (false) {
1575            Log.d(TAG, "interceptKeyTi keyCode=" + keyCode + " down=" + down + " repeatCount="
1576                    + repeatCount + " keyguardOn=" + keyguardOn + " mHomePressed=" + mHomePressed);
1577        }
1578
1579        // If we think we might have a volume down & power key chord on the way
1580        // but we're not sure, then tell the dispatcher to wait a little while and
1581        // try again later before dispatching.
1582        if (mScreenshotChordEnabled && (flags & KeyEvent.FLAG_FALLBACK) == 0) {
1583            if (mVolumeDownKeyTriggered && !mPowerKeyTriggered) {
1584                final long now = SystemClock.uptimeMillis();
1585                final long timeoutTime = mVolumeDownKeyTime + SCREENSHOT_CHORD_DEBOUNCE_DELAY_MILLIS;
1586                if (now < timeoutTime) {
1587                    return timeoutTime - now;
1588                }
1589            }
1590            if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN
1591                    && mVolumeDownKeyConsumedByScreenshotChord) {
1592                if (!down) {
1593                    mVolumeDownKeyConsumedByScreenshotChord = false;
1594                }
1595                return -1;
1596            }
1597        }
1598
1599        // First we always handle the home key here, so applications
1600        // can never break it, although if keyguard is on, we do let
1601        // it handle it, because that gives us the correct 5 second
1602        // timeout.
1603        if (keyCode == KeyEvent.KEYCODE_HOME) {
1604            // If we have released the home key, and didn't do anything else
1605            // while it was pressed, then it is time to go home!
1606            if (mHomePressed && !down) {
1607                mHomePressed = false;
1608                if (!canceled) {
1609                    // If an incoming call is ringing, HOME is totally disabled.
1610                    // (The user is already on the InCallScreen at this point,
1611                    // and his ONLY options are to answer or reject the call.)
1612                    boolean incomingRinging = false;
1613                    try {
1614                        ITelephony telephonyService = getTelephonyService();
1615                        if (telephonyService != null) {
1616                            incomingRinging = telephonyService.isRinging();
1617                        }
1618                    } catch (RemoteException ex) {
1619                        Log.w(TAG, "RemoteException from getPhoneInterface()", ex);
1620                    }
1621
1622                    if (incomingRinging) {
1623                        Log.i(TAG, "Ignoring HOME; there's a ringing incoming call.");
1624                    } else {
1625                        launchHomeFromHotKey();
1626                    }
1627                } else {
1628                    Log.i(TAG, "Ignoring HOME; event canceled.");
1629                }
1630                return -1;
1631            }
1632
1633            // If a system window has focus, then it doesn't make sense
1634            // right now to interact with applications.
1635            WindowManager.LayoutParams attrs = win != null ? win.getAttrs() : null;
1636            if (attrs != null) {
1637                final int type = attrs.type;
1638                if (type == WindowManager.LayoutParams.TYPE_KEYGUARD
1639                        || type == WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG) {
1640                    // the "app" is keyguard, so give it the key
1641                    return 0;
1642                }
1643                final int typeCount = WINDOW_TYPES_WHERE_HOME_DOESNT_WORK.length;
1644                for (int i=0; i<typeCount; i++) {
1645                    if (type == WINDOW_TYPES_WHERE_HOME_DOESNT_WORK[i]) {
1646                        // don't do anything, but also don't pass it to the app
1647                        return -1;
1648                    }
1649                }
1650            }
1651
1652            if (down) {
1653                if (repeatCount == 0) {
1654                    mHomePressed = true;
1655                } else if ((event.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0) {
1656                    if (!keyguardOn) {
1657                        handleLongPressOnHome();
1658                    }
1659                }
1660            }
1661            return -1;
1662        } else if (keyCode == KeyEvent.KEYCODE_MENU) {
1663            // Hijack modified menu keys for debugging features
1664            final int chordBug = KeyEvent.META_SHIFT_ON;
1665
1666            if (down && repeatCount == 0) {
1667                if (mEnableShiftMenuBugReports && (metaState & chordBug) == chordBug) {
1668                    Intent intent = new Intent(Intent.ACTION_BUG_REPORT);
1669                    mContext.sendOrderedBroadcast(intent, null);
1670                    return -1;
1671                } else if (SHOW_PROCESSES_ON_ALT_MENU &&
1672                        (metaState & KeyEvent.META_ALT_ON) == KeyEvent.META_ALT_ON) {
1673                    Intent service = new Intent();
1674                    service.setClassName(mContext, "com.android.server.LoadAverageService");
1675                    ContentResolver res = mContext.getContentResolver();
1676                    boolean shown = Settings.System.getInt(
1677                            res, Settings.System.SHOW_PROCESSES, 0) != 0;
1678                    if (!shown) {
1679                        mContext.startService(service);
1680                    } else {
1681                        mContext.stopService(service);
1682                    }
1683                    Settings.System.putInt(
1684                            res, Settings.System.SHOW_PROCESSES, shown ? 0 : 1);
1685                    return -1;
1686                }
1687            }
1688        } else if (keyCode == KeyEvent.KEYCODE_SEARCH) {
1689            if (down) {
1690                if (repeatCount == 0) {
1691                    mShortcutKeyPressed = keyCode;
1692                    mConsumeShortcutKeyUp = false;
1693                }
1694            } else if (keyCode == mShortcutKeyPressed) {
1695                mShortcutKeyPressed = -1;
1696                if (mConsumeShortcutKeyUp) {
1697                    mConsumeShortcutKeyUp = false;
1698                    return -1;
1699                }
1700            }
1701            return 0;
1702        } else if (keyCode == KeyEvent.KEYCODE_APP_SWITCH) {
1703            if (down && repeatCount == 0) {
1704                showOrHideRecentAppsDialog(RECENT_APPS_BEHAVIOR_SHOW_OR_DISMISS);
1705            }
1706            return -1;
1707        }
1708
1709        // Shortcuts are invoked through Search+key, so intercept those here
1710        // Any printing key that is chorded with Search should be consumed
1711        // even if no shortcut was invoked.  This prevents text from being
1712        // inadvertently inserted when using a keyboard that has built-in macro
1713        // shortcut keys (that emit Search+x) and some of them are not registered.
1714        if (mShortcutKeyPressed != -1) {
1715            final KeyCharacterMap kcm = event.getKeyCharacterMap();
1716            if (kcm.isPrintingKey(keyCode)) {
1717                mConsumeShortcutKeyUp = true;
1718                if (down && repeatCount == 0 && !keyguardOn) {
1719                    Intent shortcutIntent = mShortcutManager.getIntent(kcm, keyCode, metaState);
1720                    if (shortcutIntent != null) {
1721                        shortcutIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1722                        try {
1723                            mContext.startActivity(shortcutIntent);
1724                        } catch (ActivityNotFoundException ex) {
1725                            Slog.w(TAG, "Dropping shortcut key combination because "
1726                                    + "the activity to which it is registered was not found: "
1727                                    + KeyEvent.keyCodeToString(mShortcutKeyPressed)
1728                                    + "+" + KeyEvent.keyCodeToString(keyCode), ex);
1729                        }
1730                    } else {
1731                        Slog.i(TAG, "Dropping unregistered shortcut key combination: "
1732                                + KeyEvent.keyCodeToString(mShortcutKeyPressed)
1733                                + "+" + KeyEvent.keyCodeToString(keyCode));
1734                    }
1735                }
1736                return -1;
1737            }
1738        }
1739
1740        // Invoke shortcuts using Meta.
1741        if (down && repeatCount == 0
1742                && (metaState & KeyEvent.META_META_ON) != 0) {
1743            final KeyCharacterMap kcm = event.getKeyCharacterMap();
1744            Intent shortcutIntent = mShortcutManager.getIntent(kcm, keyCode,
1745                    metaState & ~(KeyEvent.META_META_ON
1746                            | KeyEvent.META_META_LEFT_ON | KeyEvent.META_META_RIGHT_ON));
1747            if (shortcutIntent != null) {
1748                shortcutIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1749                try {
1750                    mContext.startActivity(shortcutIntent);
1751                } catch (ActivityNotFoundException ex) {
1752                    Slog.w(TAG, "Dropping shortcut key combination because "
1753                            + "the activity to which it is registered was not found: "
1754                            + "META+" + KeyEvent.keyCodeToString(keyCode), ex);
1755                }
1756                return -1;
1757            }
1758        }
1759
1760        // Handle application launch keys.
1761        if (down && repeatCount == 0) {
1762            String category = sApplicationLaunchKeyCategories.get(keyCode);
1763            if (category != null) {
1764                Intent intent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, category);
1765                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
1766                try {
1767                    mContext.startActivity(intent);
1768                } catch (ActivityNotFoundException ex) {
1769                    Slog.w(TAG, "Dropping application launch key because "
1770                            + "the activity to which it is registered was not found: "
1771                            + "keyCode=" + keyCode + ", category=" + category, ex);
1772                }
1773                return -1;
1774            }
1775        }
1776
1777        // Display task switcher for ALT-TAB or Meta-TAB.
1778        if (down && repeatCount == 0 && keyCode == KeyEvent.KEYCODE_TAB) {
1779            if (mRecentAppsDialogHeldModifiers == 0) {
1780                final int shiftlessModifiers = event.getModifiers() & ~KeyEvent.META_SHIFT_MASK;
1781                if (KeyEvent.metaStateHasModifiers(shiftlessModifiers, KeyEvent.META_ALT_ON)
1782                        || KeyEvent.metaStateHasModifiers(
1783                                shiftlessModifiers, KeyEvent.META_META_ON)) {
1784                    mRecentAppsDialogHeldModifiers = shiftlessModifiers;
1785                    showOrHideRecentAppsDialog(RECENT_APPS_BEHAVIOR_EXIT_TOUCH_MODE_AND_SHOW);
1786                    return -1;
1787                }
1788            }
1789        } else if (!down && mRecentAppsDialogHeldModifiers != 0
1790                && (metaState & mRecentAppsDialogHeldModifiers) == 0) {
1791            mRecentAppsDialogHeldModifiers = 0;
1792            showOrHideRecentAppsDialog(RECENT_APPS_BEHAVIOR_DISMISS_AND_SWITCH);
1793        }
1794
1795        // Let the application handle the key.
1796        return 0;
1797    }
1798
1799    /** {@inheritDoc} */
1800    @Override
1801    public KeyEvent dispatchUnhandledKey(WindowState win, KeyEvent event, int policyFlags) {
1802        // Note: This method is only called if the initial down was unhandled.
1803        if (DEBUG_FALLBACK) {
1804            Slog.d(TAG, "Unhandled key: win=" + win + ", action=" + event.getAction()
1805                    + ", flags=" + event.getFlags()
1806                    + ", keyCode=" + event.getKeyCode()
1807                    + ", scanCode=" + event.getScanCode()
1808                    + ", metaState=" + event.getMetaState()
1809                    + ", repeatCount=" + event.getRepeatCount()
1810                    + ", policyFlags=" + policyFlags);
1811        }
1812
1813        if ((event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
1814            final KeyCharacterMap kcm = event.getKeyCharacterMap();
1815            final int keyCode = event.getKeyCode();
1816            final int metaState = event.getMetaState();
1817
1818            // Check for fallback actions specified by the key character map.
1819            if (getFallbackAction(kcm, keyCode, metaState, mFallbackAction)) {
1820                if (DEBUG_FALLBACK) {
1821                    Slog.d(TAG, "Fallback: keyCode=" + mFallbackAction.keyCode
1822                            + " metaState=" + Integer.toHexString(mFallbackAction.metaState));
1823                }
1824
1825                int flags = event.getFlags() | KeyEvent.FLAG_FALLBACK;
1826                KeyEvent fallbackEvent = KeyEvent.obtain(
1827                        event.getDownTime(), event.getEventTime(),
1828                        event.getAction(), mFallbackAction.keyCode,
1829                        event.getRepeatCount(), mFallbackAction.metaState,
1830                        event.getDeviceId(), event.getScanCode(),
1831                        flags, event.getSource(), null);
1832                int actions = interceptKeyBeforeQueueing(fallbackEvent, policyFlags, true);
1833                if ((actions & ACTION_PASS_TO_USER) != 0) {
1834                    long delayMillis = interceptKeyBeforeDispatching(
1835                            win, fallbackEvent, policyFlags);
1836                    if (delayMillis == 0) {
1837                        if (DEBUG_FALLBACK) {
1838                            Slog.d(TAG, "Performing fallback.");
1839                        }
1840                        return fallbackEvent;
1841                    }
1842                }
1843                fallbackEvent.recycle();
1844            }
1845        }
1846
1847        if (DEBUG_FALLBACK) {
1848            Slog.d(TAG, "No fallback.");
1849        }
1850        return null;
1851    }
1852
1853    private boolean getFallbackAction(KeyCharacterMap kcm, int keyCode, int metaState,
1854            FallbackAction outFallbackAction) {
1855        // Consult the key character map for specific fallback actions.
1856        // For example, map NUMPAD_1 to MOVE_HOME when NUMLOCK is not pressed.
1857        return kcm.getFallbackAction(keyCode, metaState, outFallbackAction);
1858    }
1859
1860    /**
1861     * A home key -> launch home action was detected.  Take the appropriate action
1862     * given the situation with the keyguard.
1863     */
1864    void launchHomeFromHotKey() {
1865        if (mKeyguardMediator != null && mKeyguardMediator.isShowingAndNotHidden()) {
1866            // don't launch home if keyguard showing
1867        } else if (!mHideLockScreen && mKeyguardMediator.isInputRestricted()) {
1868            // when in keyguard restricted mode, must first verify unlock
1869            // before launching home
1870            mKeyguardMediator.verifyUnlock(new OnKeyguardExitResult() {
1871                public void onKeyguardExitResult(boolean success) {
1872                    if (success) {
1873                        try {
1874                            ActivityManagerNative.getDefault().stopAppSwitches();
1875                        } catch (RemoteException e) {
1876                        }
1877                        sendCloseSystemWindows(SYSTEM_DIALOG_REASON_HOME_KEY);
1878                        startDockOrHome();
1879                    }
1880                }
1881            });
1882        } else {
1883            // no keyguard stuff to worry about, just launch home!
1884            try {
1885                ActivityManagerNative.getDefault().stopAppSwitches();
1886            } catch (RemoteException e) {
1887            }
1888            sendCloseSystemWindows(SYSTEM_DIALOG_REASON_HOME_KEY);
1889            startDockOrHome();
1890        }
1891    }
1892
1893    /**
1894     * A delayed callback use to determine when it is okay to re-allow applications
1895     * to use certain system UI flags.  This is used to prevent applications from
1896     * spamming system UI changes that prevent the navigation bar from being shown.
1897     */
1898    final Runnable mAllowSystemUiDelay = new Runnable() {
1899        @Override public void run() {
1900        }
1901    };
1902
1903    /**
1904     * Input handler used while nav bar is hidden.  Captures any touch on the screen,
1905     * to determine when the nav bar should be shown and prevent applications from
1906     * receiving those touches.
1907     */
1908    final class HideNavInputEventReceiver extends InputEventReceiver {
1909        public HideNavInputEventReceiver(InputChannel inputChannel, Looper looper) {
1910            super(inputChannel, looper);
1911        }
1912
1913        @Override
1914        public void onInputEvent(InputEvent event) {
1915            boolean handled = false;
1916            try {
1917                if (event instanceof MotionEvent
1918                        && (event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) {
1919                    final MotionEvent motionEvent = (MotionEvent)event;
1920                    if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) {
1921                        // When the user taps down, we re-show the nav bar.
1922                        boolean changed = false;
1923                        synchronized (mLock) {
1924                            // Any user activity always causes us to show the navigation controls,
1925                            // if they had been hidden.
1926                            int newVal = mResettingSystemUiFlags
1927                                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
1928                            if (mResettingSystemUiFlags != newVal) {
1929                                mResettingSystemUiFlags = newVal;
1930                                changed = true;
1931                            }
1932                            // We don't allow the system's nav bar to be hidden
1933                            // again for 1 second, to prevent applications from
1934                            // spamming us and keeping it from being shown.
1935                            newVal = mForceClearedSystemUiFlags
1936                                    | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
1937                            if (mForceClearedSystemUiFlags != newVal) {
1938                                mForceClearedSystemUiFlags = newVal;
1939                                changed = true;
1940                                mHandler.postDelayed(new Runnable() {
1941                                    @Override public void run() {
1942                                        synchronized (mLock) {
1943                                            mForceClearedSystemUiFlags &=
1944                                                    ~View.SYSTEM_UI_FLAG_HIDE_NAVIGATION;
1945                                        }
1946                                        mWindowManagerFuncs.reevaluateStatusBarVisibility();
1947                                    }
1948                                }, 1000);
1949                            }
1950                        }
1951                        if (changed) {
1952                            mWindowManagerFuncs.reevaluateStatusBarVisibility();
1953                        }
1954                    }
1955                }
1956            } finally {
1957                finishInputEvent(event, handled);
1958            }
1959        }
1960    }
1961    final InputEventReceiver.Factory mHideNavInputEventReceiverFactory =
1962            new InputEventReceiver.Factory() {
1963        @Override
1964        public InputEventReceiver createInputEventReceiver(
1965                InputChannel inputChannel, Looper looper) {
1966            return new HideNavInputEventReceiver(inputChannel, looper);
1967        }
1968    };
1969
1970    @Override
1971    public int adjustSystemUiVisibilityLw(int visibility) {
1972        // Reset any bits in mForceClearingStatusBarVisibility that
1973        // are now clear.
1974        mResettingSystemUiFlags &= visibility;
1975        // Clear any bits in the new visibility that are currently being
1976        // force cleared, before reporting it.
1977        return visibility & ~mResettingSystemUiFlags
1978                & ~mForceClearedSystemUiFlags;
1979    }
1980
1981    public void getContentInsetHintLw(WindowManager.LayoutParams attrs, Rect contentInset) {
1982        final int fl = attrs.flags;
1983
1984        if ((fl & (FLAG_LAYOUT_IN_SCREEN | FLAG_FULLSCREEN | FLAG_LAYOUT_INSET_DECOR))
1985                == (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR)) {
1986            contentInset.set(mCurLeft, mCurTop,
1987                    (mRestrictedScreenLeft+mRestrictedScreenWidth) - mCurRight,
1988                    (mRestrictedScreenTop+mRestrictedScreenHeight) - mCurBottom);
1989        } else {
1990            contentInset.setEmpty();
1991        }
1992    }
1993
1994    /** {@inheritDoc} */
1995    public void beginLayoutLw(int displayWidth, int displayHeight, int displayRotation) {
1996        mUnrestrictedScreenLeft = mUnrestrictedScreenTop = 0;
1997        mUnrestrictedScreenWidth = displayWidth;
1998        mUnrestrictedScreenHeight = displayHeight;
1999        mRestrictedScreenLeft = mRestrictedScreenTop = 0;
2000        mRestrictedScreenWidth = displayWidth;
2001        mRestrictedScreenHeight = displayHeight;
2002        mDockLeft = mContentLeft = mCurLeft = 0;
2003        mDockTop = mContentTop = mCurTop = 0;
2004        mDockRight = mContentRight = mCurRight = displayWidth;
2005        mDockBottom = mContentBottom = mCurBottom = displayHeight;
2006        mDockLayer = 0x10000000;
2007
2008        // start with the current dock rect, which will be (0,0,displayWidth,displayHeight)
2009        final Rect pf = mTmpParentFrame;
2010        final Rect df = mTmpDisplayFrame;
2011        final Rect vf = mTmpVisibleFrame;
2012        pf.left = df.left = vf.left = mDockLeft;
2013        pf.top = df.top = vf.top = mDockTop;
2014        pf.right = df.right = vf.right = mDockRight;
2015        pf.bottom = df.bottom = vf.bottom = mDockBottom;
2016
2017        final boolean navVisible = (mNavigationBar == null || mNavigationBar.isVisibleLw()) &&
2018                (mLastSystemUiFlags&View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) == 0;
2019
2020        // When the navigation bar isn't visible, we put up a fake
2021        // input window to catch all touch events.  This way we can
2022        // detect when the user presses anywhere to bring back the nav
2023        // bar and ensure the application doesn't see the event.
2024        if (navVisible) {
2025            if (mHideNavFakeWindow != null) {
2026                mHideNavFakeWindow.dismiss();
2027                mHideNavFakeWindow = null;
2028            }
2029        } else if (mHideNavFakeWindow == null) {
2030            mHideNavFakeWindow = mWindowManagerFuncs.addFakeWindow(
2031                    mHandler.getLooper(), mHideNavInputEventReceiverFactory,
2032                    "hidden nav", WindowManager.LayoutParams.TYPE_HIDDEN_NAV_CONSUMER,
2033                    0, false, false, true);
2034        }
2035
2036        // decide where the status bar goes ahead of time
2037        if (mStatusBar != null) {
2038            if (mNavigationBar != null) {
2039                // Force the navigation bar to its appropriate place and
2040                // size.  We need to do this directly, instead of relying on
2041                // it to bubble up from the nav bar, because this needs to
2042                // change atomically with screen rotations.
2043                if (displayWidth < displayHeight) {
2044                    // Portrait screen; nav bar goes on bottom.
2045                    mTmpNavigationFrame.set(0, displayHeight-mNavigationBarHeight,
2046                            displayWidth, displayHeight);
2047                    if (navVisible) {
2048                        mDockBottom = mTmpNavigationFrame.top;
2049                        mRestrictedScreenHeight = mDockBottom - mDockTop;
2050                    } else {
2051                        // We currently want to hide the navigation UI.  Do this by just
2052                        // moving it off the screen, so it can still receive input events
2053                        // to know when to be re-shown.
2054                        mTmpNavigationFrame.offset(0, mNavigationBarHeight);
2055                    }
2056                } else {
2057                    // Landscape screen; nav bar goes to the right.
2058                    mTmpNavigationFrame.set(displayWidth-mNavigationBarWidth, 0,
2059                            displayWidth, displayHeight);
2060                    if (navVisible) {
2061                        mDockRight = mTmpNavigationFrame.left;
2062                        mRestrictedScreenWidth = mDockRight - mDockLeft;
2063                    } else {
2064                        // We currently want to hide the navigation UI.  Do this by just
2065                        // moving it off the screen, so it can still receive input events
2066                        // to know when to be re-shown.
2067                        mTmpNavigationFrame.offset(mNavigationBarWidth, 0);
2068                    }
2069                }
2070                // Make sure the content and current rectangles are updated to
2071                // account for the restrictions from the navigation bar.
2072                mContentTop = mCurTop = mDockTop;
2073                mContentBottom = mCurBottom = mDockBottom;
2074                mContentLeft = mCurLeft = mDockLeft;
2075                mContentRight = mCurRight = mDockRight;
2076                // And compute the final frame.
2077                mNavigationBar.computeFrameLw(mTmpNavigationFrame, mTmpNavigationFrame,
2078                        mTmpNavigationFrame, mTmpNavigationFrame);
2079                if (DEBUG_LAYOUT) Log.i(TAG, "mNavigationBar frame: " + mTmpNavigationFrame);
2080            }
2081            if (DEBUG_LAYOUT) Log.i(TAG, String.format("mDock rect: (%d,%d - %d,%d)",
2082                    mDockLeft, mDockTop, mDockRight, mDockBottom));
2083
2084            // apply navigation bar insets
2085            pf.left = df.left = vf.left = mDockLeft;
2086            pf.top = df.top = vf.top = mDockTop;
2087            pf.right = df.right = vf.right = mDockRight;
2088            pf.bottom = df.bottom = vf.bottom = mDockBottom;
2089
2090            mStatusBar.computeFrameLw(pf, df, vf, vf);
2091
2092            if (mStatusBar.isVisibleLw()) {
2093                // If the status bar is hidden, we don't want to cause
2094                // windows behind it to scroll.
2095                final Rect r = mStatusBar.getFrameLw();
2096                if (mStatusBarCanHide) {
2097                    // Status bar may go away, so the screen area it occupies
2098                    // is available to apps but just covering them when the
2099                    // status bar is visible.
2100                    if (mDockTop == r.top) mDockTop = r.bottom;
2101                    else if (mDockBottom == r.bottom) mDockBottom = r.top;
2102
2103                    mContentTop = mCurTop = mDockTop;
2104                    mContentBottom = mCurBottom = mDockBottom;
2105                    mContentLeft = mCurLeft = mDockLeft;
2106                    mContentRight = mCurRight = mDockRight;
2107
2108                    if (DEBUG_LAYOUT) Log.v(TAG, "Status bar: " +
2109                        String.format(
2110                            "dock=[%d,%d][%d,%d] content=[%d,%d][%d,%d] cur=[%d,%d][%d,%d]",
2111                            mDockLeft, mDockTop, mDockRight, mDockBottom,
2112                            mContentLeft, mContentTop, mContentRight, mContentBottom,
2113                            mCurLeft, mCurTop, mCurRight, mCurBottom));
2114                } else {
2115                    // Status bar can't go away; the part of the screen it
2116                    // covers does not exist for anything behind it.
2117                    if (mRestrictedScreenTop == r.top) {
2118                        mRestrictedScreenTop = r.bottom;
2119                        mRestrictedScreenHeight -= (r.bottom-r.top);
2120                    } else if ((mRestrictedScreenHeight-mRestrictedScreenTop) == r.bottom) {
2121                        mRestrictedScreenHeight -= (r.bottom-r.top);
2122                    }
2123
2124                    mContentTop = mCurTop = mDockTop = mRestrictedScreenTop;
2125                    mContentBottom = mCurBottom = mDockBottom
2126                            = mRestrictedScreenTop + mRestrictedScreenHeight;
2127                    if (DEBUG_LAYOUT) Log.v(TAG, "Status bar: restricted screen area: ("
2128                            + mRestrictedScreenLeft + ","
2129                            + mRestrictedScreenTop + ","
2130                            + (mRestrictedScreenLeft + mRestrictedScreenWidth) + ","
2131                            + (mRestrictedScreenTop + mRestrictedScreenHeight) + ")");
2132                }
2133            }
2134        }
2135    }
2136
2137    void setAttachedWindowFrames(WindowState win, int fl, int adjust,
2138            WindowState attached, boolean insetDecors, Rect pf, Rect df, Rect cf, Rect vf) {
2139        if (win.getSurfaceLayer() > mDockLayer && attached.getSurfaceLayer() < mDockLayer) {
2140            // Here's a special case: if this attached window is a panel that is
2141            // above the dock window, and the window it is attached to is below
2142            // the dock window, then the frames we computed for the window it is
2143            // attached to can not be used because the dock is effectively part
2144            // of the underlying window and the attached window is floating on top
2145            // of the whole thing.  So, we ignore the attached window and explicitly
2146            // compute the frames that would be appropriate without the dock.
2147            df.left = cf.left = vf.left = mDockLeft;
2148            df.top = cf.top = vf.top = mDockTop;
2149            df.right = cf.right = vf.right = mDockRight;
2150            df.bottom = cf.bottom = vf.bottom = mDockBottom;
2151        } else {
2152            // The effective display frame of the attached window depends on
2153            // whether it is taking care of insetting its content.  If not,
2154            // we need to use the parent's content frame so that the entire
2155            // window is positioned within that content.  Otherwise we can use
2156            // the display frame and let the attached window take care of
2157            // positioning its content appropriately.
2158            if (adjust != SOFT_INPUT_ADJUST_RESIZE) {
2159                cf.set(attached.getDisplayFrameLw());
2160            } else {
2161                // If the window is resizing, then we want to base the content
2162                // frame on our attached content frame to resize...  however,
2163                // things can be tricky if the attached window is NOT in resize
2164                // mode, in which case its content frame will be larger.
2165                // Ungh.  So to deal with that, make sure the content frame
2166                // we end up using is not covering the IM dock.
2167                cf.set(attached.getContentFrameLw());
2168                if (attached.getSurfaceLayer() < mDockLayer) {
2169                    if (cf.left < mContentLeft) cf.left = mContentLeft;
2170                    if (cf.top < mContentTop) cf.top = mContentTop;
2171                    if (cf.right > mContentRight) cf.right = mContentRight;
2172                    if (cf.bottom > mContentBottom) cf.bottom = mContentBottom;
2173                }
2174            }
2175            df.set(insetDecors ? attached.getDisplayFrameLw() : cf);
2176            vf.set(attached.getVisibleFrameLw());
2177        }
2178        // The LAYOUT_IN_SCREEN flag is used to determine whether the attached
2179        // window should be positioned relative to its parent or the entire
2180        // screen.
2181        pf.set((fl & FLAG_LAYOUT_IN_SCREEN) == 0
2182                ? attached.getFrameLw() : df);
2183    }
2184
2185    /** {@inheritDoc} */
2186    public void layoutWindowLw(WindowState win, WindowManager.LayoutParams attrs,
2187            WindowState attached) {
2188        // we've already done the status bar
2189        if (win == mStatusBar || win == mNavigationBar) {
2190            return;
2191        }
2192
2193        final int fl = attrs.flags;
2194        final int sim = attrs.softInputMode;
2195
2196        final Rect pf = mTmpParentFrame;
2197        final Rect df = mTmpDisplayFrame;
2198        final Rect cf = mTmpContentFrame;
2199        final Rect vf = mTmpVisibleFrame;
2200
2201        final boolean hasNavBar = (mHasNavigationBar
2202                && mNavigationBar != null && mNavigationBar.isVisibleLw());
2203
2204        if (attrs.type == TYPE_INPUT_METHOD) {
2205            pf.left = df.left = cf.left = vf.left = mDockLeft;
2206            pf.top = df.top = cf.top = vf.top = mDockTop;
2207            pf.right = df.right = cf.right = vf.right = mDockRight;
2208            pf.bottom = df.bottom = cf.bottom = vf.bottom = mDockBottom;
2209            // IM dock windows always go to the bottom of the screen.
2210            attrs.gravity = Gravity.BOTTOM;
2211            mDockLayer = win.getSurfaceLayer();
2212        } else {
2213            final int adjust = sim & SOFT_INPUT_MASK_ADJUST;
2214
2215            if ((fl & (FLAG_LAYOUT_IN_SCREEN | FLAG_FULLSCREEN | FLAG_LAYOUT_INSET_DECOR))
2216                    == (FLAG_LAYOUT_IN_SCREEN | FLAG_LAYOUT_INSET_DECOR)) {
2217                if (DEBUG_LAYOUT)
2218                    Log.v(TAG, "layoutWindowLw(" + attrs.getTitle()
2219                            + "): IN_SCREEN, INSET_DECOR, !FULLSCREEN");
2220                // This is the case for a normal activity window: we want it
2221                // to cover all of the screen space, and it can take care of
2222                // moving its contents to account for screen decorations that
2223                // intrude into that space.
2224                if (attached != null) {
2225                    // If this window is attached to another, our display
2226                    // frame is the same as the one we are attached to.
2227                    setAttachedWindowFrames(win, fl, sim, attached, true, pf, df, cf, vf);
2228                } else {
2229                    if (attrs.type == TYPE_STATUS_BAR_PANEL
2230                            || attrs.type == TYPE_STATUS_BAR_SUB_PANEL) {
2231                        // Status bar panels are the only windows who can go on top of
2232                        // the status bar.  They are protected by the STATUS_BAR_SERVICE
2233                        // permission, so they have the same privileges as the status
2234                        // bar itself.
2235                        //
2236                        // However, they should still dodge the navigation bar if it exists.
2237
2238                        pf.left = df.left = hasNavBar ? mDockLeft : mUnrestrictedScreenLeft;
2239                        pf.top = df.top = mUnrestrictedScreenTop;
2240                        pf.right = df.right = hasNavBar
2241                                            ? mRestrictedScreenLeft+mRestrictedScreenWidth
2242                                            : mUnrestrictedScreenLeft+mUnrestrictedScreenWidth;
2243                        pf.bottom = df.bottom = hasNavBar
2244                                              ? mRestrictedScreenTop+mRestrictedScreenHeight
2245                                              : mUnrestrictedScreenTop+mUnrestrictedScreenHeight;
2246
2247                        if (DEBUG_LAYOUT) {
2248                            Log.v(TAG, String.format(
2249                                        "Laying out status bar window: (%d,%d - %d,%d)",
2250                                        pf.left, pf.top, pf.right, pf.bottom));
2251                        }
2252                    } else {
2253                        pf.left = df.left = mRestrictedScreenLeft;
2254                        pf.top = df.top = mRestrictedScreenTop;
2255                        pf.right = df.right = mRestrictedScreenLeft+mRestrictedScreenWidth;
2256                        pf.bottom = df.bottom = mRestrictedScreenTop+mRestrictedScreenHeight;
2257                    }
2258                    if (adjust != SOFT_INPUT_ADJUST_RESIZE) {
2259                        cf.left = mDockLeft;
2260                        cf.top = mDockTop;
2261                        cf.right = mDockRight;
2262                        cf.bottom = mDockBottom;
2263                    } else {
2264                        cf.left = mContentLeft;
2265                        cf.top = mContentTop;
2266                        cf.right = mContentRight;
2267                        cf.bottom = mContentBottom;
2268                    }
2269                    if (adjust != SOFT_INPUT_ADJUST_NOTHING) {
2270                        vf.left = mCurLeft;
2271                        vf.top = mCurTop;
2272                        vf.right = mCurRight;
2273                        vf.bottom = mCurBottom;
2274                    } else {
2275                        vf.set(cf);
2276                    }
2277                }
2278            } else if ((fl & FLAG_LAYOUT_IN_SCREEN) != 0) {
2279                if (DEBUG_LAYOUT)
2280                    Log.v(TAG, "layoutWindowLw(" + attrs.getTitle() + "): IN_SCREEN");
2281                // A window that has requested to fill the entire screen just
2282                // gets everything, period.
2283                if (attrs.type == TYPE_STATUS_BAR_PANEL
2284                        || attrs.type == TYPE_STATUS_BAR_SUB_PANEL) {
2285                    pf.left = df.left = cf.left = hasNavBar ? mDockLeft : mUnrestrictedScreenLeft;
2286                    pf.top = df.top = cf.top = mUnrestrictedScreenTop;
2287                    pf.right = df.right = cf.right = hasNavBar
2288                                        ? mRestrictedScreenLeft+mRestrictedScreenWidth
2289                                        : mUnrestrictedScreenLeft+mUnrestrictedScreenWidth;
2290                    pf.bottom = df.bottom = cf.bottom = hasNavBar
2291                                          ? mRestrictedScreenTop+mRestrictedScreenHeight
2292                                          : mUnrestrictedScreenTop+mUnrestrictedScreenHeight;
2293
2294                    if (DEBUG_LAYOUT) {
2295                        Log.v(TAG, String.format(
2296                                    "Laying out IN_SCREEN status bar window: (%d,%d - %d,%d)",
2297                                    pf.left, pf.top, pf.right, pf.bottom));
2298                    }
2299                } else if (attrs.type == TYPE_NAVIGATION_BAR) {
2300                    // The navigation bar has Real Ultimate Power.
2301                    pf.left = df.left = mUnrestrictedScreenLeft;
2302                    pf.top = df.top = mUnrestrictedScreenTop;
2303                    pf.right = df.right = mUnrestrictedScreenLeft+mUnrestrictedScreenWidth;
2304                    pf.bottom = df.bottom = mUnrestrictedScreenTop+mUnrestrictedScreenHeight;
2305                    if (DEBUG_LAYOUT) {
2306                        Log.v(TAG, String.format(
2307                                    "Laying out navigation bar window: (%d,%d - %d,%d)",
2308                                    pf.left, pf.top, pf.right, pf.bottom));
2309                    }
2310                } else if ((attrs.type == TYPE_SECURE_SYSTEM_OVERLAY
2311                                || attrs.type == TYPE_BOOT_PROGRESS)
2312                        && ((fl & FLAG_FULLSCREEN) != 0)) {
2313                    // Fullscreen secure system overlays get what they ask for.
2314                    pf.left = df.left = mUnrestrictedScreenLeft;
2315                    pf.top = df.top = mUnrestrictedScreenTop;
2316                    pf.right = df.right = mUnrestrictedScreenLeft+mUnrestrictedScreenWidth;
2317                    pf.bottom = df.bottom = mUnrestrictedScreenTop+mUnrestrictedScreenHeight;
2318                } else if (attrs.type == TYPE_BOOT_PROGRESS) {
2319                    // Boot progress screen always covers entire display.
2320                    pf.left = df.left = cf.left = mUnrestrictedScreenLeft;
2321                    pf.top = df.top = cf.top = mUnrestrictedScreenTop;
2322                    pf.right = df.right = cf.right = mUnrestrictedScreenLeft+mUnrestrictedScreenWidth;
2323                    pf.bottom = df.bottom = cf.bottom
2324                            = mUnrestrictedScreenTop+mUnrestrictedScreenHeight;
2325                } else {
2326                    pf.left = df.left = cf.left = mRestrictedScreenLeft;
2327                    pf.top = df.top = cf.top = mRestrictedScreenTop;
2328                    pf.right = df.right = cf.right = mRestrictedScreenLeft+mRestrictedScreenWidth;
2329                    pf.bottom = df.bottom = cf.bottom
2330                            = mRestrictedScreenTop+mRestrictedScreenHeight;
2331                }
2332                if (adjust != SOFT_INPUT_ADJUST_NOTHING) {
2333                    vf.left = mCurLeft;
2334                    vf.top = mCurTop;
2335                    vf.right = mCurRight;
2336                    vf.bottom = mCurBottom;
2337                } else {
2338                    vf.set(cf);
2339                }
2340            } else if (attached != null) {
2341                if (DEBUG_LAYOUT)
2342                    Log.v(TAG, "layoutWindowLw(" + attrs.getTitle() + "): attached to " + attached);
2343                // A child window should be placed inside of the same visible
2344                // frame that its parent had.
2345                setAttachedWindowFrames(win, fl, adjust, attached, false, pf, df, cf, vf);
2346            } else {
2347                if (DEBUG_LAYOUT)
2348                    Log.v(TAG, "layoutWindowLw(" + attrs.getTitle() + "): normal window");
2349                // Otherwise, a normal window must be placed inside the content
2350                // of all screen decorations.
2351                if (attrs.type == TYPE_STATUS_BAR_PANEL) {
2352                    // Status bar panels are the only windows who can go on top of
2353                    // the status bar.  They are protected by the STATUS_BAR_SERVICE
2354                    // permission, so they have the same privileges as the status
2355                    // bar itself.
2356                    pf.left = df.left = cf.left = mRestrictedScreenLeft;
2357                    pf.top = df.top = cf.top = mRestrictedScreenTop;
2358                    pf.right = df.right = cf.right = mRestrictedScreenLeft+mRestrictedScreenWidth;
2359                    pf.bottom = df.bottom = cf.bottom
2360                            = mRestrictedScreenTop+mRestrictedScreenHeight;
2361                } else {
2362                    pf.left = mContentLeft;
2363                    pf.top = mContentTop;
2364                    pf.right = mContentRight;
2365                    pf.bottom = mContentBottom;
2366                    if (adjust != SOFT_INPUT_ADJUST_RESIZE) {
2367                        df.left = cf.left = mDockLeft;
2368                        df.top = cf.top = mDockTop;
2369                        df.right = cf.right = mDockRight;
2370                        df.bottom = cf.bottom = mDockBottom;
2371                    } else {
2372                        df.left = cf.left = mContentLeft;
2373                        df.top = cf.top = mContentTop;
2374                        df.right = cf.right = mContentRight;
2375                        df.bottom = cf.bottom = mContentBottom;
2376                    }
2377                    if (adjust != SOFT_INPUT_ADJUST_NOTHING) {
2378                        vf.left = mCurLeft;
2379                        vf.top = mCurTop;
2380                        vf.right = mCurRight;
2381                        vf.bottom = mCurBottom;
2382                    } else {
2383                        vf.set(cf);
2384                    }
2385                }
2386            }
2387        }
2388
2389        if ((fl & FLAG_LAYOUT_NO_LIMITS) != 0) {
2390            df.left = df.top = cf.left = cf.top = vf.left = vf.top = -10000;
2391            df.right = df.bottom = cf.right = cf.bottom = vf.right = vf.bottom = 10000;
2392        }
2393
2394        if (DEBUG_LAYOUT) Log.v(TAG, "Compute frame " + attrs.getTitle()
2395                + ": sim=#" + Integer.toHexString(sim)
2396                + " attach=" + attached + " type=" + attrs.type
2397                + String.format(" flags=0x%08x", fl)
2398                + " pf=" + pf.toShortString() + " df=" + df.toShortString()
2399                + " cf=" + cf.toShortString() + " vf=" + vf.toShortString());
2400
2401        win.computeFrameLw(pf, df, cf, vf);
2402
2403        // Dock windows carve out the bottom of the screen, so normal windows
2404        // can't appear underneath them.
2405        if (attrs.type == TYPE_INPUT_METHOD && !win.getGivenInsetsPendingLw()) {
2406            int top = win.getContentFrameLw().top;
2407            top += win.getGivenContentInsetsLw().top;
2408            if (mContentBottom > top) {
2409                mContentBottom = top;
2410            }
2411            top = win.getVisibleFrameLw().top;
2412            top += win.getGivenVisibleInsetsLw().top;
2413            if (mCurBottom > top) {
2414                mCurBottom = top;
2415            }
2416            if (DEBUG_LAYOUT) Log.v(TAG, "Input method: mDockBottom="
2417                    + mDockBottom + " mContentBottom="
2418                    + mContentBottom + " mCurBottom=" + mCurBottom);
2419        }
2420    }
2421
2422    /** {@inheritDoc} */
2423    @Override
2424    public void finishLayoutLw() {
2425        return;
2426    }
2427
2428    /** {@inheritDoc} */
2429    public void beginAnimationLw(int displayWidth, int displayHeight) {
2430        mTopFullscreenOpaqueWindowState = null;
2431        mForceStatusBar = false;
2432
2433        mHideLockScreen = false;
2434        mAllowLockscreenWhenOn = false;
2435        mDismissKeyguard = false;
2436    }
2437
2438    /** {@inheritDoc} */
2439    public void animatingWindowLw(WindowState win,
2440                                WindowManager.LayoutParams attrs) {
2441        if (DEBUG_LAYOUT) Slog.i(TAG, "Win " + win + ": isVisibleOrBehindKeyguardLw="
2442                + win.isVisibleOrBehindKeyguardLw());
2443        if (mTopFullscreenOpaqueWindowState == null &&
2444                win.isVisibleOrBehindKeyguardLw() && !win.isGoneForLayoutLw()) {
2445            if ((attrs.flags & FLAG_FORCE_NOT_FULLSCREEN) != 0) {
2446                mForceStatusBar = true;
2447            }
2448            if (attrs.type >= FIRST_APPLICATION_WINDOW
2449                    && attrs.type <= LAST_APPLICATION_WINDOW
2450                    && attrs.x == 0 && attrs.y == 0
2451                    && attrs.width == WindowManager.LayoutParams.MATCH_PARENT
2452                    && attrs.height == WindowManager.LayoutParams.MATCH_PARENT) {
2453                if (DEBUG_LAYOUT) Log.v(TAG, "Fullscreen window: " + win);
2454                mTopFullscreenOpaqueWindowState = win;
2455                if ((attrs.flags & FLAG_SHOW_WHEN_LOCKED) != 0) {
2456                    if (localLOGV) Log.v(TAG, "Setting mHideLockScreen to true by win " + win);
2457                    mHideLockScreen = true;
2458                }
2459                if ((attrs.flags & FLAG_DISMISS_KEYGUARD) != 0) {
2460                    if (localLOGV) Log.v(TAG, "Setting mDismissKeyguard to true by win " + win);
2461                    mDismissKeyguard = true;
2462                }
2463                if ((attrs.flags & FLAG_ALLOW_LOCK_WHILE_SCREEN_ON) != 0) {
2464                    mAllowLockscreenWhenOn = true;
2465                }
2466            }
2467        }
2468    }
2469
2470    /** {@inheritDoc} */
2471    public int finishAnimationLw() {
2472        int changes = 0;
2473        boolean topIsFullscreen = false;
2474
2475        final WindowManager.LayoutParams lp = (mTopFullscreenOpaqueWindowState != null)
2476                ? mTopFullscreenOpaqueWindowState.getAttrs()
2477                : null;
2478
2479        if (mStatusBar != null) {
2480            if (DEBUG_LAYOUT) Log.i(TAG, "force=" + mForceStatusBar
2481                    + " top=" + mTopFullscreenOpaqueWindowState);
2482            if (mForceStatusBar) {
2483                if (DEBUG_LAYOUT) Log.v(TAG, "Showing status bar: forced");
2484                if (mStatusBar.showLw(true)) changes |= FINISH_LAYOUT_REDO_LAYOUT;
2485            } else if (mTopFullscreenOpaqueWindowState != null) {
2486                if (localLOGV) {
2487                    Log.d(TAG, "frame: " + mTopFullscreenOpaqueWindowState.getFrameLw()
2488                            + " shown frame: " + mTopFullscreenOpaqueWindowState.getShownFrameLw());
2489                    Log.d(TAG, "attr: " + mTopFullscreenOpaqueWindowState.getAttrs()
2490                            + " lp.flags=0x" + Integer.toHexString(lp.flags));
2491                }
2492                topIsFullscreen = (lp.flags & WindowManager.LayoutParams.FLAG_FULLSCREEN) != 0;
2493                // The subtle difference between the window for mTopFullscreenOpaqueWindowState
2494                // and mTopIsFullscreen is that that mTopIsFullscreen is set only if the window
2495                // has the FLAG_FULLSCREEN set.  Not sure if there is another way that to be the
2496                // case though.
2497                if (topIsFullscreen) {
2498                    if (mStatusBarCanHide) {
2499                        if (DEBUG_LAYOUT) Log.v(TAG, "** HIDING status bar");
2500                        if (mStatusBar.hideLw(true)) {
2501                            changes |= FINISH_LAYOUT_REDO_LAYOUT;
2502
2503                            mHandler.post(new Runnable() { public void run() {
2504                                if (mStatusBarService != null) {
2505                                    try {
2506                                        mStatusBarService.collapse();
2507                                    } catch (RemoteException ex) {}
2508                                }
2509                            }});
2510                        }
2511                    } else if (DEBUG_LAYOUT) {
2512                        Log.v(TAG, "Preventing status bar from hiding by policy");
2513                    }
2514                } else {
2515                    if (DEBUG_LAYOUT) Log.v(TAG, "** SHOWING status bar: top is not fullscreen");
2516                    if (mStatusBar.showLw(true)) changes |= FINISH_LAYOUT_REDO_LAYOUT;
2517                }
2518            }
2519        }
2520
2521        mTopIsFullscreen = topIsFullscreen;
2522
2523        // Hide the key guard if a visible window explicitly specifies that it wants to be displayed
2524        // when the screen is locked
2525        if (mKeyguard != null) {
2526            if (localLOGV) Log.v(TAG, "finishAnimationLw::mHideKeyguard="+mHideLockScreen);
2527            if (mDismissKeyguard && !mKeyguardMediator.isSecure()) {
2528                if (mKeyguard.hideLw(true)) {
2529                    changes |= FINISH_LAYOUT_REDO_LAYOUT
2530                            | FINISH_LAYOUT_REDO_CONFIG
2531                            | FINISH_LAYOUT_REDO_WALLPAPER;
2532                }
2533                if (mKeyguardMediator.isShowing()) {
2534                    mHandler.post(new Runnable() {
2535                        public void run() {
2536                            mKeyguardMediator.keyguardDone(false, false);
2537                        }
2538                    });
2539                }
2540            } else if (mHideLockScreen) {
2541                if (mKeyguard.hideLw(true)) {
2542                    changes |= FINISH_LAYOUT_REDO_LAYOUT
2543                            | FINISH_LAYOUT_REDO_CONFIG
2544                            | FINISH_LAYOUT_REDO_WALLPAPER;
2545                }
2546                mKeyguardMediator.setHidden(true);
2547            } else {
2548                if (mKeyguard.showLw(true)) {
2549                    changes |= FINISH_LAYOUT_REDO_LAYOUT
2550                            | FINISH_LAYOUT_REDO_CONFIG
2551                            | FINISH_LAYOUT_REDO_WALLPAPER;
2552                }
2553                mKeyguardMediator.setHidden(false);
2554            }
2555        }
2556
2557        if ((updateSystemUiVisibilityLw()&View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) != 0) {
2558            // If the navigation bar has been hidden or shown, we need to do another
2559            // layout pass to update that window.
2560            changes |= FINISH_LAYOUT_REDO_LAYOUT;
2561        }
2562
2563        // update since mAllowLockscreenWhenOn might have changed
2564        updateLockScreenTimeout();
2565        return changes;
2566    }
2567
2568    public boolean allowAppAnimationsLw() {
2569        if (mKeyguard != null && mKeyguard.isVisibleLw()) {
2570            // If keyguard is currently visible, no reason to animate
2571            // behind it.
2572            return false;
2573        }
2574        if (false) {
2575            // Don't do this on the tablet, since the system bar never completely
2576            // covers the screen, and with all its transparency this will
2577            // incorrectly think it does cover it when it doesn't.  We'll revisit
2578            // this later when we re-do the phone status bar.
2579            if (mStatusBar != null && mStatusBar.isVisibleLw()) {
2580                RectF rect = new RectF(mStatusBar.getShownFrameLw());
2581                for (int i=mStatusBarPanels.size()-1; i>=0; i--) {
2582                    WindowState w = mStatusBarPanels.get(i);
2583                    if (w.isVisibleLw()) {
2584                        rect.union(w.getShownFrameLw());
2585                    }
2586                }
2587                final int insetw = mRestrictedScreenWidth/10;
2588                final int inseth = mRestrictedScreenHeight/10;
2589                if (rect.contains(insetw, inseth, mRestrictedScreenWidth-insetw,
2590                            mRestrictedScreenHeight-inseth)) {
2591                    // All of the status bar windows put together cover the
2592                    // screen, so the app can't be seen.  (Note this test doesn't
2593                    // work if the rects of these windows are at off offsets or
2594                    // sizes, causing gaps in the rect union we have computed.)
2595                    return false;
2596                }
2597            }
2598        }
2599        return true;
2600    }
2601
2602    public int focusChangedLw(WindowState lastFocus, WindowState newFocus) {
2603        mFocusedWindow = newFocus;
2604        if ((updateSystemUiVisibilityLw()&View.SYSTEM_UI_FLAG_HIDE_NAVIGATION) != 0) {
2605            // If the navigation bar has been hidden or shown, we need to do another
2606            // layout pass to update that window.
2607            return FINISH_LAYOUT_REDO_LAYOUT;
2608        }
2609        return 0;
2610    }
2611
2612    /** {@inheritDoc} */
2613    public void notifyLidSwitchChanged(long whenNanos, boolean lidOpen) {
2614        // do nothing if headless
2615        if (mHeadless) return;
2616
2617        // lid changed state
2618        mLidOpen = lidOpen ? LID_OPEN : LID_CLOSED;
2619        updateKeyboardVisibility();
2620
2621        boolean awakeNow = mKeyguardMediator.doLidChangeTq(lidOpen);
2622        updateRotation(true);
2623        if (awakeNow) {
2624            // If the lid is opening and we don't have to keep the
2625            // keyguard up, then we can turn on the screen
2626            // immediately.
2627            mKeyguardMediator.pokeWakelock();
2628        } else if (keyguardIsShowingTq()) {
2629            if (lidOpen) {
2630                // If we are opening the lid and not hiding the
2631                // keyguard, then we need to have it turn on the
2632                // screen once it is shown.
2633                mKeyguardMediator.onWakeKeyWhenKeyguardShowingTq(
2634                        KeyEvent.KEYCODE_POWER, mDockMode != Intent.EXTRA_DOCK_STATE_UNDOCKED);
2635            }
2636        } else {
2637            // Light up the keyboard if we are sliding up.
2638            if (lidOpen) {
2639                mPowerManager.userActivity(SystemClock.uptimeMillis(), false,
2640                        LocalPowerManager.BUTTON_EVENT);
2641            } else {
2642                mPowerManager.userActivity(SystemClock.uptimeMillis(), false,
2643                        LocalPowerManager.OTHER_EVENT);
2644            }
2645        }
2646    }
2647
2648    void setHdmiPlugged(boolean plugged) {
2649        if (mHdmiPlugged != plugged) {
2650            mHdmiPlugged = plugged;
2651            updateRotation(true);
2652            Intent intent = new Intent(ACTION_HDMI_PLUGGED);
2653            intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
2654            intent.putExtra(EXTRA_HDMI_PLUGGED_STATE, plugged);
2655            mContext.sendStickyBroadcast(intent);
2656        }
2657    }
2658
2659    void initializeHdmiState() {
2660        boolean plugged = false;
2661        // watch for HDMI plug messages if the hdmi switch exists
2662        if (new File("/sys/devices/virtual/switch/hdmi/state").exists()) {
2663            mHDMIObserver.startObserving("DEVPATH=/devices/virtual/switch/hdmi");
2664
2665            final String filename = "/sys/class/switch/hdmi/state";
2666            FileReader reader = null;
2667            try {
2668                reader = new FileReader(filename);
2669                char[] buf = new char[15];
2670                int n = reader.read(buf);
2671                if (n > 1) {
2672                    plugged = 0 != Integer.parseInt(new String(buf, 0, n-1));
2673                }
2674            } catch (IOException ex) {
2675                Slog.w(TAG, "Couldn't read hdmi state from " + filename + ": " + ex);
2676            } catch (NumberFormatException ex) {
2677                Slog.w(TAG, "Couldn't read hdmi state from " + filename + ": " + ex);
2678            } finally {
2679                if (reader != null) {
2680                    try {
2681                        reader.close();
2682                    } catch (IOException ex) {
2683                    }
2684                }
2685            }
2686        }
2687        // This dance forces the code in setHdmiPlugged to run.
2688        // Always do this so the sticky intent is stuck (to false) if there is no hdmi.
2689        mHdmiPlugged = !plugged;
2690        setHdmiPlugged(!mHdmiPlugged);
2691    }
2692
2693    /**
2694     * @return Whether music is being played right now.
2695     */
2696    boolean isMusicActive() {
2697        final AudioManager am = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
2698        if (am == null) {
2699            Log.w(TAG, "isMusicActive: couldn't get AudioManager reference");
2700            return false;
2701        }
2702        return am.isMusicActive();
2703    }
2704
2705    /**
2706     * Tell the audio service to adjust the volume appropriate to the event.
2707     * @param keycode
2708     */
2709    void handleVolumeKey(int stream, int keycode) {
2710        IAudioService audioService = getAudioService();
2711        if (audioService == null) {
2712            return;
2713        }
2714        try {
2715            // since audio is playing, we shouldn't have to hold a wake lock
2716            // during the call, but we do it as a precaution for the rare possibility
2717            // that the music stops right before we call this
2718            // TODO: Actually handle MUTE.
2719            mBroadcastWakeLock.acquire();
2720            audioService.adjustStreamVolume(stream,
2721                keycode == KeyEvent.KEYCODE_VOLUME_UP
2722                            ? AudioManager.ADJUST_RAISE
2723                            : AudioManager.ADJUST_LOWER,
2724                    0);
2725        } catch (RemoteException e) {
2726            Log.w(TAG, "IAudioService.adjustStreamVolume() threw RemoteException " + e);
2727        } finally {
2728            mBroadcastWakeLock.release();
2729        }
2730    }
2731
2732    final Object mScreenshotLock = new Object();
2733    ServiceConnection mScreenshotConnection = null;
2734
2735    final Runnable mScreenshotTimeout = new Runnable() {
2736        @Override public void run() {
2737            synchronized (mScreenshotLock) {
2738                if (mScreenshotConnection != null) {
2739                    mContext.unbindService(mScreenshotConnection);
2740                    mScreenshotConnection = null;
2741                }
2742            }
2743        }
2744    };
2745
2746    // Assume this is called from the Handler thread.
2747    private void takeScreenshot() {
2748        synchronized (mScreenshotLock) {
2749            if (mScreenshotConnection != null) {
2750                return;
2751            }
2752            ComponentName cn = new ComponentName("com.android.systemui",
2753                    "com.android.systemui.screenshot.TakeScreenshotService");
2754            Intent intent = new Intent();
2755            intent.setComponent(cn);
2756            ServiceConnection conn = new ServiceConnection() {
2757                @Override
2758                public void onServiceConnected(ComponentName name, IBinder service) {
2759                    synchronized (mScreenshotLock) {
2760                        if (mScreenshotConnection != this) {
2761                            return;
2762                        }
2763                        Messenger messenger = new Messenger(service);
2764                        Message msg = Message.obtain(null, 1);
2765                        final ServiceConnection myConn = this;
2766                        Handler h = new Handler(mHandler.getLooper()) {
2767                            @Override
2768                            public void handleMessage(Message msg) {
2769                                synchronized (mScreenshotLock) {
2770                                    if (mScreenshotConnection == myConn) {
2771                                        mContext.unbindService(mScreenshotConnection);
2772                                        mScreenshotConnection = null;
2773                                        mHandler.removeCallbacks(mScreenshotTimeout);
2774                                    }
2775                                }
2776                            }
2777                        };
2778                        msg.replyTo = new Messenger(h);
2779                        msg.arg1 = msg.arg2 = 0;
2780                        if (mStatusBar != null && mStatusBar.isVisibleLw())
2781                            msg.arg1 = 1;
2782                        if (mNavigationBar != null && mNavigationBar.isVisibleLw())
2783                            msg.arg2 = 1;
2784                        try {
2785                            messenger.send(msg);
2786                        } catch (RemoteException e) {
2787                        }
2788                    }
2789                }
2790                @Override
2791                public void onServiceDisconnected(ComponentName name) {}
2792            };
2793            if (mContext.bindService(intent, conn, Context.BIND_AUTO_CREATE)) {
2794                mScreenshotConnection = conn;
2795                mHandler.postDelayed(mScreenshotTimeout, 10000);
2796            }
2797        }
2798    }
2799
2800    /** {@inheritDoc} */
2801    @Override
2802    public int interceptKeyBeforeQueueing(KeyEvent event, int policyFlags, boolean isScreenOn) {
2803        final boolean down = event.getAction() == KeyEvent.ACTION_DOWN;
2804        final boolean canceled = event.isCanceled();
2805        final int keyCode = event.getKeyCode();
2806
2807        final boolean isInjected = (policyFlags & WindowManagerPolicy.FLAG_INJECTED) != 0;
2808
2809        // If screen is off then we treat the case where the keyguard is open but hidden
2810        // the same as if it were open and in front.
2811        // This will prevent any keys other than the power button from waking the screen
2812        // when the keyguard is hidden by another activity.
2813        final boolean keyguardActive = (mKeyguardMediator == null ? false :
2814                                            (isScreenOn ?
2815                                                mKeyguardMediator.isShowingAndNotHidden() :
2816                                                mKeyguardMediator.isShowing()));
2817
2818        if (!mSystemBooted) {
2819            // If we have not yet booted, don't let key events do anything.
2820            return 0;
2821        }
2822
2823        if (false) {
2824            Log.d(TAG, "interceptKeyTq keycode=" + keyCode
2825                  + " screenIsOn=" + isScreenOn + " keyguardActive=" + keyguardActive);
2826        }
2827
2828        if (down && (policyFlags & WindowManagerPolicy.FLAG_VIRTUAL) != 0
2829                && event.getRepeatCount() == 0) {
2830            performHapticFeedbackLw(null, HapticFeedbackConstants.VIRTUAL_KEY, false);
2831        }
2832
2833        if (keyCode == KeyEvent.KEYCODE_POWER) {
2834            policyFlags |= WindowManagerPolicy.FLAG_WAKE;
2835        }
2836        final boolean isWakeKey = (policyFlags & (WindowManagerPolicy.FLAG_WAKE
2837                | WindowManagerPolicy.FLAG_WAKE_DROPPED)) != 0;
2838
2839        // Basic policy based on screen state and keyguard.
2840        // FIXME: This policy isn't quite correct.  We shouldn't care whether the screen
2841        //        is on or off, really.  We should care about whether the device is in an
2842        //        interactive state or is in suspend pretending to be "off".
2843        //        The primary screen might be turned off due to proximity sensor or
2844        //        because we are presenting media on an auxiliary screen or remotely controlling
2845        //        the device some other way (which is why we have an exemption here for injected
2846        //        events).
2847        int result;
2848        if ((isScreenOn && !mHeadless) || (isInjected && !isWakeKey)) {
2849            // When the screen is on or if the key is injected pass the key to the application.
2850            result = ACTION_PASS_TO_USER;
2851        } else {
2852            // When the screen is off and the key is not injected, determine whether
2853            // to wake the device but don't pass the key to the application.
2854            result = 0;
2855            if (down && isWakeKey) {
2856                if (keyguardActive) {
2857                    // If the keyguard is showing, let it decide what to do with the wake key.
2858                    mKeyguardMediator.onWakeKeyWhenKeyguardShowingTq(keyCode,
2859                            mDockMode != Intent.EXTRA_DOCK_STATE_UNDOCKED);
2860                } else {
2861                    // Otherwise, wake the device ourselves.
2862                    result |= ACTION_POKE_USER_ACTIVITY;
2863                }
2864            }
2865        }
2866
2867        // Handle special keys.
2868        switch (keyCode) {
2869            case KeyEvent.KEYCODE_VOLUME_DOWN:
2870            case KeyEvent.KEYCODE_VOLUME_UP:
2871            case KeyEvent.KEYCODE_VOLUME_MUTE: {
2872                if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN) {
2873                    if (down) {
2874                        if (isScreenOn && !mVolumeDownKeyTriggered
2875                                && (event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
2876                            mVolumeDownKeyTriggered = true;
2877                            mVolumeDownKeyTime = event.getDownTime();
2878                            mVolumeDownKeyConsumedByScreenshotChord = false;
2879                            cancelPendingPowerKeyAction();
2880                            interceptScreenshotChord();
2881                        }
2882                    } else {
2883                        mVolumeDownKeyTriggered = false;
2884                        cancelPendingScreenshotChordAction();
2885                    }
2886                } else if (keyCode == KeyEvent.KEYCODE_VOLUME_UP) {
2887                    if (down) {
2888                        if (isScreenOn && !mVolumeUpKeyTriggered
2889                                && (event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
2890                            mVolumeUpKeyTriggered = true;
2891                            cancelPendingPowerKeyAction();
2892                            cancelPendingScreenshotChordAction();
2893                        }
2894                    } else {
2895                        mVolumeUpKeyTriggered = false;
2896                        cancelPendingScreenshotChordAction();
2897                    }
2898                }
2899                if (down) {
2900                    ITelephony telephonyService = getTelephonyService();
2901                    if (telephonyService != null) {
2902                        try {
2903                            if (telephonyService.isRinging()) {
2904                                // If an incoming call is ringing, either VOLUME key means
2905                                // "silence ringer".  We handle these keys here, rather than
2906                                // in the InCallScreen, to make sure we'll respond to them
2907                                // even if the InCallScreen hasn't come to the foreground yet.
2908                                // Look for the DOWN event here, to agree with the "fallback"
2909                                // behavior in the InCallScreen.
2910                                Log.i(TAG, "interceptKeyBeforeQueueing:"
2911                                      + " VOLUME key-down while ringing: Silence ringer!");
2912
2913                                // Silence the ringer.  (It's safe to call this
2914                                // even if the ringer has already been silenced.)
2915                                telephonyService.silenceRinger();
2916
2917                                // And *don't* pass this key thru to the current activity
2918                                // (which is probably the InCallScreen.)
2919                                result &= ~ACTION_PASS_TO_USER;
2920                                break;
2921                            }
2922                            if (telephonyService.isOffhook()
2923                                    && (result & ACTION_PASS_TO_USER) == 0) {
2924                                // If we are in call but we decided not to pass the key to
2925                                // the application, handle the volume change here.
2926                                handleVolumeKey(AudioManager.STREAM_VOICE_CALL, keyCode);
2927                                break;
2928                            }
2929                        } catch (RemoteException ex) {
2930                            Log.w(TAG, "ITelephony threw RemoteException", ex);
2931                        }
2932                    }
2933
2934                    if (isMusicActive() && (result & ACTION_PASS_TO_USER) == 0) {
2935                        // If music is playing but we decided not to pass the key to the
2936                        // application, handle the volume change here.
2937                        handleVolumeKey(AudioManager.STREAM_MUSIC, keyCode);
2938                        break;
2939                    }
2940                }
2941                break;
2942            }
2943
2944            case KeyEvent.KEYCODE_ENDCALL: {
2945                result &= ~ACTION_PASS_TO_USER;
2946                if (down) {
2947                    ITelephony telephonyService = getTelephonyService();
2948                    boolean hungUp = false;
2949                    if (telephonyService != null) {
2950                        try {
2951                            hungUp = telephonyService.endCall();
2952                        } catch (RemoteException ex) {
2953                            Log.w(TAG, "ITelephony threw RemoteException", ex);
2954                        }
2955                    }
2956                    interceptPowerKeyDown(!isScreenOn || hungUp);
2957                } else {
2958                    if (interceptPowerKeyUp(canceled)) {
2959                        if ((mEndcallBehavior
2960                                & Settings.System.END_BUTTON_BEHAVIOR_HOME) != 0) {
2961                            if (goHome()) {
2962                                break;
2963                            }
2964                        }
2965                        if ((mEndcallBehavior
2966                                & Settings.System.END_BUTTON_BEHAVIOR_SLEEP) != 0) {
2967                            result = (result & ~ACTION_POKE_USER_ACTIVITY) | ACTION_GO_TO_SLEEP;
2968                        }
2969                    }
2970                }
2971                break;
2972            }
2973
2974            case KeyEvent.KEYCODE_POWER: {
2975                result &= ~ACTION_PASS_TO_USER;
2976                if (down) {
2977                    if (isScreenOn && !mPowerKeyTriggered
2978                            && (event.getFlags() & KeyEvent.FLAG_FALLBACK) == 0) {
2979                        mPowerKeyTriggered = true;
2980                        mPowerKeyTime = event.getDownTime();
2981                        interceptScreenshotChord();
2982                    }
2983
2984                    ITelephony telephonyService = getTelephonyService();
2985                    boolean hungUp = false;
2986                    if (telephonyService != null) {
2987                        try {
2988                            if (telephonyService.isRinging()) {
2989                                // Pressing Power while there's a ringing incoming
2990                                // call should silence the ringer.
2991                                telephonyService.silenceRinger();
2992                            } else if ((mIncallPowerBehavior
2993                                    & Settings.Secure.INCALL_POWER_BUTTON_BEHAVIOR_HANGUP) != 0
2994                                    && telephonyService.isOffhook()) {
2995                                // Otherwise, if "Power button ends call" is enabled,
2996                                // the Power button will hang up any current active call.
2997                                hungUp = telephonyService.endCall();
2998                            }
2999                        } catch (RemoteException ex) {
3000                            Log.w(TAG, "ITelephony threw RemoteException", ex);
3001                        }
3002                    }
3003                    interceptPowerKeyDown(!isScreenOn || hungUp
3004                            || mVolumeDownKeyTriggered || mVolumeUpKeyTriggered);
3005                } else {
3006                    mPowerKeyTriggered = false;
3007                    cancelPendingScreenshotChordAction();
3008                    if (interceptPowerKeyUp(canceled || mPendingPowerKeyUpCanceled)) {
3009                        result = (result & ~ACTION_POKE_USER_ACTIVITY) | ACTION_GO_TO_SLEEP;
3010                    }
3011                    mPendingPowerKeyUpCanceled = false;
3012                }
3013                break;
3014            }
3015
3016            case KeyEvent.KEYCODE_MEDIA_PLAY:
3017            case KeyEvent.KEYCODE_MEDIA_PAUSE:
3018            case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE:
3019                if (down) {
3020                    ITelephony telephonyService = getTelephonyService();
3021                    if (telephonyService != null) {
3022                        try {
3023                            if (!telephonyService.isIdle()) {
3024                                // Suppress PLAY/PAUSE toggle when phone is ringing or in-call
3025                                // to avoid music playback.
3026                                break;
3027                            }
3028                        } catch (RemoteException ex) {
3029                            Log.w(TAG, "ITelephony threw RemoteException", ex);
3030                        }
3031                    }
3032                }
3033            case KeyEvent.KEYCODE_HEADSETHOOK:
3034            case KeyEvent.KEYCODE_MUTE:
3035            case KeyEvent.KEYCODE_MEDIA_STOP:
3036            case KeyEvent.KEYCODE_MEDIA_NEXT:
3037            case KeyEvent.KEYCODE_MEDIA_PREVIOUS:
3038            case KeyEvent.KEYCODE_MEDIA_REWIND:
3039            case KeyEvent.KEYCODE_MEDIA_RECORD:
3040            case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: {
3041                if ((result & ACTION_PASS_TO_USER) == 0) {
3042                    // Only do this if we would otherwise not pass it to the user. In that
3043                    // case, the PhoneWindow class will do the same thing, except it will
3044                    // only do it if the showing app doesn't process the key on its own.
3045                    mBroadcastWakeLock.acquire();
3046                    mHandler.post(new PassHeadsetKey(new KeyEvent(event)));
3047                }
3048                break;
3049            }
3050
3051            case KeyEvent.KEYCODE_CALL: {
3052                if (down) {
3053                    ITelephony telephonyService = getTelephonyService();
3054                    if (telephonyService != null) {
3055                        try {
3056                            if (telephonyService.isRinging()) {
3057                                Log.i(TAG, "interceptKeyBeforeQueueing:"
3058                                      + " CALL key-down while ringing: Answer the call!");
3059                                telephonyService.answerRingingCall();
3060
3061                                // And *don't* pass this key thru to the current activity
3062                                // (which is presumably the InCallScreen.)
3063                                result &= ~ACTION_PASS_TO_USER;
3064                            }
3065                        } catch (RemoteException ex) {
3066                            Log.w(TAG, "ITelephony threw RemoteException", ex);
3067                        }
3068                    }
3069                }
3070                break;
3071            }
3072        }
3073        return result;
3074    }
3075
3076    /** {@inheritDoc} */
3077    @Override
3078    public int interceptMotionBeforeQueueingWhenScreenOff(int policyFlags) {
3079        int result = 0;
3080
3081        final boolean isWakeMotion = (policyFlags
3082                & (WindowManagerPolicy.FLAG_WAKE | WindowManagerPolicy.FLAG_WAKE_DROPPED)) != 0;
3083        if (isWakeMotion) {
3084            if (mKeyguardMediator != null && mKeyguardMediator.isShowing()) {
3085                // If the keyguard is showing, let it decide what to do with the wake motion.
3086                mKeyguardMediator.onWakeMotionWhenKeyguardShowingTq();
3087            } else {
3088                // Otherwise, wake the device ourselves.
3089                result |= ACTION_POKE_USER_ACTIVITY;
3090            }
3091        }
3092        return result;
3093    }
3094
3095    class PassHeadsetKey implements Runnable {
3096        KeyEvent mKeyEvent;
3097
3098        PassHeadsetKey(KeyEvent keyEvent) {
3099            mKeyEvent = keyEvent;
3100        }
3101
3102        public void run() {
3103            if (ActivityManagerNative.isSystemReady()) {
3104                Intent intent = new Intent(Intent.ACTION_MEDIA_BUTTON, null);
3105                intent.putExtra(Intent.EXTRA_KEY_EVENT, mKeyEvent);
3106                mContext.sendOrderedBroadcast(intent, null, mBroadcastDone,
3107                        mHandler, Activity.RESULT_OK, null, null);
3108            }
3109        }
3110    }
3111
3112    BroadcastReceiver mBroadcastDone = new BroadcastReceiver() {
3113        public void onReceive(Context context, Intent intent) {
3114            mBroadcastWakeLock.release();
3115        }
3116    };
3117
3118    BroadcastReceiver mDockReceiver = new BroadcastReceiver() {
3119        public void onReceive(Context context, Intent intent) {
3120            if (Intent.ACTION_DOCK_EVENT.equals(intent.getAction())) {
3121                mDockMode = intent.getIntExtra(Intent.EXTRA_DOCK_STATE,
3122                        Intent.EXTRA_DOCK_STATE_UNDOCKED);
3123            } else {
3124                try {
3125                    IUiModeManager uiModeService = IUiModeManager.Stub.asInterface(
3126                            ServiceManager.getService(Context.UI_MODE_SERVICE));
3127                    mUiMode = uiModeService.getCurrentModeType();
3128                } catch (RemoteException e) {
3129                }
3130            }
3131            updateRotation(true);
3132            updateOrientationListenerLp();
3133        }
3134    };
3135
3136    BroadcastReceiver mPowerReceiver = new BroadcastReceiver() {
3137        public void onReceive(Context context, Intent intent) {
3138            if (Intent.ACTION_BATTERY_CHANGED.equals(intent.getAction())) {
3139                mPluggedIn = (0 != intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0));
3140                if (localLOGV) Log.v(TAG, "BATTERY_CHANGED: " + intent + " plugged=" + mPluggedIn);
3141            }
3142        }
3143    };
3144
3145    /** {@inheritDoc} */
3146    public void screenTurnedOff(int why) {
3147        EventLog.writeEvent(70000, 0);
3148        synchronized (mLock) {
3149            mScreenOnEarly = false;
3150            mScreenOnFully = false;
3151        }
3152        if (mKeyguardMediator != null) {
3153            mKeyguardMediator.onScreenTurnedOff(why);
3154        }
3155        synchronized (mLock) {
3156            updateOrientationListenerLp();
3157            updateLockScreenTimeout();
3158            updateScreenSaverTimeoutLocked();
3159        }
3160    }
3161
3162    /** {@inheritDoc} */
3163    public void screenTurningOn(final ScreenOnListener screenOnListener) {
3164        EventLog.writeEvent(70000, 1);
3165        if (false) {
3166            RuntimeException here = new RuntimeException("here");
3167            here.fillInStackTrace();
3168            Slog.i(TAG, "Screen turning on...", here);
3169        }
3170        if (screenOnListener != null) {
3171            if (mKeyguardMediator != null) {
3172                mKeyguardMediator.onScreenTurnedOn(new KeyguardViewManager.ShowListener() {
3173                    @Override public void onShown(IBinder windowToken) {
3174                        if (windowToken != null) {
3175                            try {
3176                                mWindowManager.waitForWindowDrawn(windowToken,
3177                                        new IRemoteCallback.Stub() {
3178                                    @Override public void sendResult(Bundle data) {
3179                                        Slog.i(TAG, "Lock screen displayed!");
3180                                        screenOnListener.onScreenOn();
3181                                        synchronized (mLock) {
3182                                            mScreenOnFully = true;
3183                                        }
3184                                    }
3185                                });
3186                            } catch (RemoteException e) {
3187                            }
3188                        } else {
3189                            Slog.i(TAG, "No lock screen!");
3190                            screenOnListener.onScreenOn();
3191                            synchronized (mLock) {
3192                                mScreenOnFully = true;
3193                            }
3194                        }
3195                    }
3196                });
3197            }
3198        } else {
3199            synchronized (mLock) {
3200                mScreenOnFully = true;
3201            }
3202        }
3203        synchronized (mLock) {
3204            mScreenOnEarly = true;
3205            updateOrientationListenerLp();
3206            updateLockScreenTimeout();
3207            updateScreenSaverTimeoutLocked();
3208        }
3209    }
3210
3211    /** {@inheritDoc} */
3212    public boolean isScreenOnEarly() {
3213        return mScreenOnEarly;
3214    }
3215
3216    /** {@inheritDoc} */
3217    public boolean isScreenOnFully() {
3218        return mScreenOnFully;
3219    }
3220
3221    /** {@inheritDoc} */
3222    public void enableKeyguard(boolean enabled) {
3223        if (mKeyguardMediator != null) {
3224            mKeyguardMediator.setKeyguardEnabled(enabled);
3225        }
3226    }
3227
3228    /** {@inheritDoc} */
3229    public void exitKeyguardSecurely(OnKeyguardExitResult callback) {
3230        if (mKeyguardMediator != null) {
3231            mKeyguardMediator.verifyUnlock(callback);
3232        }
3233    }
3234
3235    private boolean keyguardIsShowingTq() {
3236        if (mKeyguardMediator == null) return false;
3237        return mKeyguardMediator.isShowingAndNotHidden();
3238    }
3239
3240
3241    /** {@inheritDoc} */
3242    public boolean isKeyguardLocked() {
3243        return keyguardOn();
3244    }
3245
3246    /** {@inheritDoc} */
3247    public boolean isKeyguardSecure() {
3248        if (mKeyguardMediator == null) return false;
3249        return mKeyguardMediator.isSecure();
3250    }
3251
3252    /** {@inheritDoc} */
3253    public boolean inKeyguardRestrictedKeyInputMode() {
3254        if (mKeyguardMediator == null) return false;
3255        return mKeyguardMediator.isInputRestricted();
3256    }
3257
3258    public void dismissKeyguardLw() {
3259        if (!mKeyguardMediator.isSecure()) {
3260            if (mKeyguardMediator.isShowing()) {
3261                mHandler.post(new Runnable() {
3262                    public void run() {
3263                        mKeyguardMediator.keyguardDone(false, true);
3264                    }
3265                });
3266            }
3267        }
3268    }
3269
3270    void sendCloseSystemWindows() {
3271        sendCloseSystemWindows(mContext, null);
3272    }
3273
3274    void sendCloseSystemWindows(String reason) {
3275        sendCloseSystemWindows(mContext, reason);
3276    }
3277
3278    static void sendCloseSystemWindows(Context context, String reason) {
3279        if (ActivityManagerNative.isSystemReady()) {
3280            try {
3281                ActivityManagerNative.getDefault().closeSystemDialogs(reason);
3282            } catch (RemoteException e) {
3283            }
3284        }
3285    }
3286
3287    @Override
3288    public int rotationForOrientationLw(int orientation, int lastRotation) {
3289        if (false) {
3290            Slog.v(TAG, "rotationForOrientationLw(orient="
3291                        + orientation + ", last=" + lastRotation
3292                        + "); user=" + mUserRotation + " "
3293                        + ((mUserRotationMode == WindowManagerPolicy.USER_ROTATION_LOCKED)
3294                            ? "USER_ROTATION_LOCKED" : "")
3295                        );
3296        }
3297
3298        synchronized (mLock) {
3299            int sensorRotation = mOrientationListener.getProposedRotation(); // may be -1
3300            if (sensorRotation < 0) {
3301                sensorRotation = lastRotation;
3302            }
3303
3304            final int preferredRotation;
3305            if (mLidOpen == LID_OPEN && mLidOpenRotation >= 0) {
3306                // Ignore sensor when lid switch is open and rotation is forced.
3307                preferredRotation = mLidOpenRotation;
3308            } else if (mDockMode == Intent.EXTRA_DOCK_STATE_CAR
3309                    && (mCarDockEnablesAccelerometer || mCarDockRotation >= 0)) {
3310                // Ignore sensor when in car dock unless explicitly enabled.
3311                // This case can override the behavior of NOSENSOR, and can also
3312                // enable 180 degree rotation while docked.
3313                preferredRotation = mCarDockEnablesAccelerometer
3314                        ? sensorRotation : mCarDockRotation;
3315            } else if ((mDockMode == Intent.EXTRA_DOCK_STATE_DESK
3316                    || mDockMode == Intent.EXTRA_DOCK_STATE_LE_DESK
3317                    || mDockMode == Intent.EXTRA_DOCK_STATE_HE_DESK)
3318                    && (mDeskDockEnablesAccelerometer || mDeskDockRotation >= 0)) {
3319                // Ignore sensor when in desk dock unless explicitly enabled.
3320                // This case can override the behavior of NOSENSOR, and can also
3321                // enable 180 degree rotation while docked.
3322                preferredRotation = mDeskDockEnablesAccelerometer
3323                        ? sensorRotation : mDeskDockRotation;
3324            } else if (mHdmiPlugged) {
3325                // Ignore sensor when plugged into HDMI.
3326                // Note that the dock orientation overrides the HDMI orientation.
3327                preferredRotation = mHdmiRotation;
3328            } else if ((mAccelerometerDefault != 0 /* implies not rotation locked */
3329                            && (orientation == ActivityInfo.SCREEN_ORIENTATION_USER
3330                                    || orientation == ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED))
3331                    || orientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR
3332                    || orientation == ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR
3333                    || orientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE
3334                    || orientation == ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT) {
3335                // Otherwise, use sensor only if requested by the application or enabled
3336                // by default for USER or UNSPECIFIED modes.  Does not apply to NOSENSOR.
3337                if (mAllowAllRotations < 0) {
3338                    // Can't read this during init() because the context doesn't
3339                    // have display metrics at that time so we cannot determine
3340                    // tablet vs. phone then.
3341                    mAllowAllRotations = mContext.getResources().getBoolean(
3342                            com.android.internal.R.bool.config_allowAllRotations) ? 1 : 0;
3343                }
3344                if (sensorRotation != Surface.ROTATION_180
3345                        || mAllowAllRotations == 1
3346                        || orientation == ActivityInfo.SCREEN_ORIENTATION_FULL_SENSOR) {
3347                    preferredRotation = sensorRotation;
3348                } else {
3349                    preferredRotation = lastRotation;
3350                }
3351            } else if (mUserRotationMode == WindowManagerPolicy.USER_ROTATION_LOCKED) {
3352                // Apply rotation lock.
3353                preferredRotation = mUserRotation;
3354            } else {
3355                // No overriding preference.
3356                // We will do exactly what the application asked us to do.
3357                preferredRotation = -1;
3358            }
3359
3360            switch (orientation) {
3361                case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
3362                    // Return portrait unless overridden.
3363                    if (isAnyPortrait(preferredRotation)) {
3364                        return preferredRotation;
3365                    }
3366                    return mPortraitRotation;
3367
3368                case ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE:
3369                    // Return landscape unless overridden.
3370                    if (isLandscapeOrSeascape(preferredRotation)) {
3371                        return preferredRotation;
3372                    }
3373                    return mLandscapeRotation;
3374
3375                case ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT:
3376                    // Return reverse portrait unless overridden.
3377                    if (isAnyPortrait(preferredRotation)) {
3378                        return preferredRotation;
3379                    }
3380                    return mUpsideDownRotation;
3381
3382                case ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE:
3383                    // Return seascape unless overridden.
3384                    if (isLandscapeOrSeascape(preferredRotation)) {
3385                        return preferredRotation;
3386                    }
3387                    return mSeascapeRotation;
3388
3389                case ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE:
3390                    // Return either landscape rotation.
3391                    if (isLandscapeOrSeascape(preferredRotation)) {
3392                        return preferredRotation;
3393                    }
3394                    if (isLandscapeOrSeascape(lastRotation)) {
3395                        return lastRotation;
3396                    }
3397                    return mLandscapeRotation;
3398
3399                case ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT:
3400                    // Return either portrait rotation.
3401                    if (isAnyPortrait(preferredRotation)) {
3402                        return preferredRotation;
3403                    }
3404                    if (isAnyPortrait(lastRotation)) {
3405                        return lastRotation;
3406                    }
3407                    return mPortraitRotation;
3408
3409                default:
3410                    // For USER, UNSPECIFIED, NOSENSOR, SENSOR and FULL_SENSOR,
3411                    // just return the preferred orientation we already calculated.
3412                    if (preferredRotation >= 0) {
3413                        return preferredRotation;
3414                    }
3415                    return Surface.ROTATION_0;
3416            }
3417        }
3418    }
3419
3420    @Override
3421    public boolean rotationHasCompatibleMetricsLw(int orientation, int rotation) {
3422        switch (orientation) {
3423            case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
3424            case ActivityInfo.SCREEN_ORIENTATION_REVERSE_PORTRAIT:
3425            case ActivityInfo.SCREEN_ORIENTATION_SENSOR_PORTRAIT:
3426                return isAnyPortrait(rotation);
3427
3428            case ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE:
3429            case ActivityInfo.SCREEN_ORIENTATION_REVERSE_LANDSCAPE:
3430            case ActivityInfo.SCREEN_ORIENTATION_SENSOR_LANDSCAPE:
3431                return isLandscapeOrSeascape(rotation);
3432
3433            default:
3434                return true;
3435        }
3436    }
3437
3438    @Override
3439    public void setRotationLw(int rotation) {
3440        mOrientationListener.setCurrentRotation(rotation);
3441    }
3442
3443    private boolean isLandscapeOrSeascape(int rotation) {
3444        return rotation == mLandscapeRotation || rotation == mSeascapeRotation;
3445    }
3446
3447    private boolean isAnyPortrait(int rotation) {
3448        return rotation == mPortraitRotation || rotation == mUpsideDownRotation;
3449    }
3450
3451
3452    // User rotation: to be used when all else fails in assigning an orientation to the device
3453    public void setUserRotationMode(int mode, int rot) {
3454        ContentResolver res = mContext.getContentResolver();
3455
3456        // mUserRotationMode and mUserRotation will be assigned by the content observer
3457        if (mode == WindowManagerPolicy.USER_ROTATION_LOCKED) {
3458            Settings.System.putInt(res,
3459                    Settings.System.USER_ROTATION,
3460                    rot);
3461            Settings.System.putInt(res,
3462                    Settings.System.ACCELEROMETER_ROTATION,
3463                    0);
3464        } else {
3465            Settings.System.putInt(res,
3466                    Settings.System.ACCELEROMETER_ROTATION,
3467                    1);
3468        }
3469    }
3470
3471    public boolean detectSafeMode() {
3472        try {
3473            int menuState = mWindowManager.getKeycodeState(KeyEvent.KEYCODE_MENU);
3474            int sState = mWindowManager.getKeycodeState(KeyEvent.KEYCODE_S);
3475            int dpadState = mWindowManager.getDPadKeycodeState(KeyEvent.KEYCODE_DPAD_CENTER);
3476            int trackballState = mWindowManager.getTrackballScancodeState(BTN_MOUSE);
3477            int volumeDownState = mWindowManager.getKeycodeState(KeyEvent.KEYCODE_VOLUME_DOWN);
3478            mSafeMode = menuState > 0 || sState > 0 || dpadState > 0 || trackballState > 0
3479                    || volumeDownState > 0;
3480            performHapticFeedbackLw(null, mSafeMode
3481                    ? HapticFeedbackConstants.SAFE_MODE_ENABLED
3482                    : HapticFeedbackConstants.SAFE_MODE_DISABLED, true);
3483            if (mSafeMode) {
3484                Log.i(TAG, "SAFE MODE ENABLED (menu=" + menuState + " s=" + sState
3485                        + " dpad=" + dpadState + " trackball=" + trackballState + ")");
3486            } else {
3487                Log.i(TAG, "SAFE MODE not enabled");
3488            }
3489            return mSafeMode;
3490        } catch (RemoteException e) {
3491            // Doom! (it's also local)
3492            throw new RuntimeException("window manager dead");
3493        }
3494    }
3495
3496    static long[] getLongIntArray(Resources r, int resid) {
3497        int[] ar = r.getIntArray(resid);
3498        if (ar == null) {
3499            return null;
3500        }
3501        long[] out = new long[ar.length];
3502        for (int i=0; i<ar.length; i++) {
3503            out[i] = ar[i];
3504        }
3505        return out;
3506    }
3507
3508    /** {@inheritDoc} */
3509    public void systemReady() {
3510        if (mKeyguardMediator != null) {
3511            // tell the keyguard
3512            mKeyguardMediator.onSystemReady();
3513        }
3514        synchronized (mLock) {
3515            updateOrientationListenerLp();
3516            mSystemReady = true;
3517            mHandler.post(new Runnable() {
3518                public void run() {
3519                    updateSettings();
3520                }
3521            });
3522        }
3523    }
3524
3525    /** {@inheritDoc} */
3526    public void systemBooted() {
3527        synchronized (mLock) {
3528            mSystemBooted = true;
3529        }
3530    }
3531
3532    ProgressDialog mBootMsgDialog = null;
3533
3534    /** {@inheritDoc} */
3535    public void showBootMessage(final CharSequence msg, final boolean always) {
3536        if (mHeadless) return;
3537        mHandler.post(new Runnable() {
3538            @Override public void run() {
3539                if (mBootMsgDialog == null) {
3540                    mBootMsgDialog = new ProgressDialog(mContext) {
3541                        // This dialog will consume all events coming in to
3542                        // it, to avoid it trying to do things too early in boot.
3543                        @Override public boolean dispatchKeyEvent(KeyEvent event) {
3544                            return true;
3545                        }
3546                        @Override public boolean dispatchKeyShortcutEvent(KeyEvent event) {
3547                            return true;
3548                        }
3549                        @Override public boolean dispatchTouchEvent(MotionEvent ev) {
3550                            return true;
3551                        }
3552                        @Override public boolean dispatchTrackballEvent(MotionEvent ev) {
3553                            return true;
3554                        }
3555                        @Override public boolean dispatchGenericMotionEvent(MotionEvent ev) {
3556                            return true;
3557                        }
3558                        @Override public boolean dispatchPopulateAccessibilityEvent(
3559                                AccessibilityEvent event) {
3560                            return true;
3561                        }
3562                    };
3563                    mBootMsgDialog.setTitle(R.string.android_upgrading_title);
3564                    mBootMsgDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
3565                    mBootMsgDialog.setIndeterminate(true);
3566                    mBootMsgDialog.getWindow().setType(
3567                            WindowManager.LayoutParams.TYPE_BOOT_PROGRESS);
3568                    mBootMsgDialog.getWindow().addFlags(
3569                            WindowManager.LayoutParams.FLAG_DIM_BEHIND
3570                            | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
3571                    mBootMsgDialog.getWindow().setDimAmount(1);
3572                    WindowManager.LayoutParams lp = mBootMsgDialog.getWindow().getAttributes();
3573                    lp.screenOrientation = ActivityInfo.SCREEN_ORIENTATION_NOSENSOR;
3574                    mBootMsgDialog.getWindow().setAttributes(lp);
3575                    mBootMsgDialog.setCancelable(false);
3576                    mBootMsgDialog.show();
3577                }
3578                mBootMsgDialog.setMessage(msg);
3579            }
3580        });
3581    }
3582
3583    /** {@inheritDoc} */
3584    public void hideBootMessages() {
3585        mHandler.post(new Runnable() {
3586            @Override public void run() {
3587                if (mBootMsgDialog != null) {
3588                    mBootMsgDialog.dismiss();
3589                    mBootMsgDialog = null;
3590                }
3591            }
3592        });
3593    }
3594
3595    /** {@inheritDoc} */
3596    public void userActivity() {
3597        // ***************************************
3598        // NOTE NOTE NOTE NOTE NOTE NOTE NOTE NOTE
3599        // ***************************************
3600        // THIS IS CALLED FROM DEEP IN THE POWER MANAGER
3601        // WITH ITS LOCKS HELD.
3602        //
3603        // This code must be VERY careful about the locks
3604        // it acquires.
3605        // In fact, the current code acquires way too many,
3606        // and probably has lurking deadlocks.
3607
3608        synchronized (mScreenLockTimeout) {
3609            if (mLockScreenTimerActive) {
3610                // reset the timer
3611                mHandler.removeCallbacks(mScreenLockTimeout);
3612                mHandler.postDelayed(mScreenLockTimeout, mLockScreenTimeout);
3613            }
3614        }
3615
3616        synchronized (mLock) {
3617            // Only posts messages; holds no additional locks.
3618            updateScreenSaverTimeoutLocked();
3619        }
3620    }
3621
3622    Runnable mScreenSaverActivator = new Runnable() {
3623        public void run() {
3624            if (!(mScreenSaverMayRun && mScreenOnEarly)) {
3625                Log.w(TAG, "mScreenSaverActivator ran, but the screensaver should not be showing. Who's driving this thing?");
3626                return;
3627            }
3628            if (!mPluggedIn) {
3629                if (localLOGV) Log.v(TAG, "mScreenSaverActivator: not running screen saver when not plugged in");
3630                return;
3631            }
3632            // Quick fix for automation tests.
3633            // The correct fix is to move this triggering logic to PowerManager, where more complete
3634            // information about wakelocks (including StayOnWhilePluggedIn) is available.
3635            if (Settings.System.getInt(mContext.getContentResolver(),
3636                        Settings.System.STAY_ON_WHILE_PLUGGED_IN,
3637                        BatteryManager.BATTERY_PLUGGED_AC) != 0) {
3638                Log.v(TAG, "mScreenSaverActivator: not running screen saver when STAY_ON_WHILE_PLUGGED_IN");
3639                return;
3640            }
3641
3642            if (localLOGV) Log.v(TAG, "mScreenSaverActivator entering dreamland");
3643
3644            try {
3645                String component = Settings.Secure.getString(
3646                        mContext.getContentResolver(), Settings.Secure.SCREENSAVER_COMPONENT);
3647                if (component == null) {
3648                    component = mContext.getResources().getString(R.string.config_defaultDreamComponent);
3649                }
3650                if (component != null) {
3651                    // dismiss the notification shade, recents, etc.
3652                    mContext.sendBroadcast(new Intent(Intent.ACTION_CLOSE_SYSTEM_DIALOGS)
3653                            .addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT));
3654
3655                    ComponentName cn = ComponentName.unflattenFromString(component);
3656                    Intent intent = new Intent(Intent.ACTION_MAIN)
3657                        .setComponent(cn)
3658                        .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK
3659                            | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS
3660                            | Intent.FLAG_ACTIVITY_NO_USER_ACTION
3661                            | Intent.FLAG_FROM_BACKGROUND
3662                            | Intent.FLAG_ACTIVITY_NO_HISTORY
3663                            );
3664                    mContext.startActivity(intent);
3665                } else {
3666                    Log.e(TAG, "Couldn't start screen saver: none selected");
3667                }
3668            } catch (android.content.ActivityNotFoundException exc) {
3669                // no screensaver? give up
3670                Log.e(TAG, "Couldn't start screen saver: none installed");
3671            }
3672        }
3673    };
3674
3675    // Must call while holding mLock
3676    private void updateScreenSaverTimeoutLocked() {
3677        if (mScreenSaverActivator == null) return;
3678
3679        mHandler.removeCallbacks(mScreenSaverActivator);
3680        if (mScreenSaverEnabledByUser && mScreenSaverMayRun && mScreenOnEarly && mScreenSaverTimeout > 0) {
3681            if (localLOGV)
3682                Log.v(TAG, "scheduling screensaver for " + mScreenSaverTimeout + "ms from now");
3683            mHandler.postDelayed(mScreenSaverActivator, mScreenSaverTimeout);
3684        } else {
3685            if (localLOGV) {
3686                if (!mScreenSaverEnabledByUser || mScreenSaverTimeout == 0)
3687                    Log.v(TAG, "screen saver disabled by user");
3688                else if (!mScreenOnEarly)
3689                    Log.v(TAG, "screen saver disabled while screen off");
3690                else
3691                    Log.v(TAG, "screen saver disabled by wakelock");
3692            }
3693        }
3694    }
3695
3696    Runnable mScreenLockTimeout = new Runnable() {
3697        public void run() {
3698            synchronized (this) {
3699                if (localLOGV) Log.v(TAG, "mScreenLockTimeout activating keyguard");
3700                if (mKeyguardMediator != null) {
3701                    mKeyguardMediator.doKeyguardTimeout();
3702                }
3703                mLockScreenTimerActive = false;
3704            }
3705        }
3706    };
3707
3708    public void lockNow() {
3709        mContext.enforceCallingOrSelfPermission(android.Manifest.permission.DEVICE_POWER, null);
3710        mHandler.removeCallbacks(mScreenLockTimeout);
3711        mHandler.post(mScreenLockTimeout);
3712    }
3713
3714    private void updateLockScreenTimeout() {
3715        synchronized (mScreenLockTimeout) {
3716            boolean enable = (mAllowLockscreenWhenOn && mScreenOnEarly &&
3717                    mKeyguardMediator != null && mKeyguardMediator.isSecure());
3718            if (mLockScreenTimerActive != enable) {
3719                if (enable) {
3720                    if (localLOGV) Log.v(TAG, "setting lockscreen timer");
3721                    mHandler.postDelayed(mScreenLockTimeout, mLockScreenTimeout);
3722                } else {
3723                    if (localLOGV) Log.v(TAG, "clearing lockscreen timer");
3724                    mHandler.removeCallbacks(mScreenLockTimeout);
3725                }
3726                mLockScreenTimerActive = enable;
3727            }
3728        }
3729    }
3730
3731    /** {@inheritDoc} */
3732    public void enableScreenAfterBoot() {
3733        readLidState();
3734        updateKeyboardVisibility();
3735
3736        updateRotation(true);
3737    }
3738
3739    private void updateKeyboardVisibility() {
3740        mPowerManager.setKeyboardVisibility(mLidOpen == LID_OPEN);
3741    }
3742
3743    void updateRotation(boolean alwaysSendConfiguration) {
3744        try {
3745            //set orientation on WindowManager
3746            mWindowManager.updateRotation(alwaysSendConfiguration);
3747        } catch (RemoteException e) {
3748            // Ignore
3749        }
3750    }
3751
3752    /**
3753     * Return an Intent to launch the currently active dock app as home.  Returns
3754     * null if the standard home should be launched, which is the case if any of the following is
3755     * true:
3756     * <ul>
3757     *  <li>The device is not in either car mode or desk mode
3758     *  <li>The device is in car mode but ENABLE_CAR_DOCK_HOME_CAPTURE is false
3759     *  <li>The device is in desk mode but ENABLE_DESK_DOCK_HOME_CAPTURE is false
3760     *  <li>The device is in car mode but there's no CAR_DOCK app with METADATA_DOCK_HOME
3761     *  <li>The device is in desk mode but there's no DESK_DOCK app with METADATA_DOCK_HOME
3762     * </ul>
3763     * @return
3764     */
3765    Intent createHomeDockIntent() {
3766        Intent intent = null;
3767
3768        // What home does is based on the mode, not the dock state.  That
3769        // is, when in car mode you should be taken to car home regardless
3770        // of whether we are actually in a car dock.
3771        if (mUiMode == Configuration.UI_MODE_TYPE_CAR) {
3772            if (ENABLE_CAR_DOCK_HOME_CAPTURE) {
3773                intent = mCarDockIntent;
3774            }
3775        } else if (mUiMode == Configuration.UI_MODE_TYPE_DESK) {
3776            if (ENABLE_DESK_DOCK_HOME_CAPTURE) {
3777                intent = mDeskDockIntent;
3778            }
3779        }
3780
3781        if (intent == null) {
3782            return null;
3783        }
3784
3785        ActivityInfo ai = intent.resolveActivityInfo(
3786                mContext.getPackageManager(), PackageManager.GET_META_DATA);
3787        if (ai == null) {
3788            return null;
3789        }
3790
3791        if (ai.metaData != null && ai.metaData.getBoolean(Intent.METADATA_DOCK_HOME)) {
3792            intent = new Intent(intent);
3793            intent.setClassName(ai.packageName, ai.name);
3794            return intent;
3795        }
3796
3797        return null;
3798    }
3799
3800    void startDockOrHome() {
3801        Intent dock = createHomeDockIntent();
3802        if (dock != null) {
3803            try {
3804                mContext.startActivity(dock);
3805                return;
3806            } catch (ActivityNotFoundException e) {
3807            }
3808        }
3809        mContext.startActivity(mHomeIntent);
3810    }
3811
3812    /**
3813     * goes to the home screen
3814     * @return whether it did anything
3815     */
3816    boolean goHome() {
3817        if (false) {
3818            // This code always brings home to the front.
3819            try {
3820                ActivityManagerNative.getDefault().stopAppSwitches();
3821            } catch (RemoteException e) {
3822            }
3823            sendCloseSystemWindows();
3824            startDockOrHome();
3825        } else {
3826            // This code brings home to the front or, if it is already
3827            // at the front, puts the device to sleep.
3828            try {
3829                if (SystemProperties.getInt("persist.sys.uts-test-mode", 0) == 1) {
3830                    /// Roll back EndcallBehavior as the cupcake design to pass P1 lab entry.
3831                    Log.d(TAG, "UTS-TEST-MODE");
3832                } else {
3833                    ActivityManagerNative.getDefault().stopAppSwitches();
3834                    sendCloseSystemWindows();
3835                    Intent dock = createHomeDockIntent();
3836                    if (dock != null) {
3837                        int result = ActivityManagerNative.getDefault()
3838                                .startActivity(null, dock,
3839                                        dock.resolveTypeIfNeeded(mContext.getContentResolver()),
3840                                        null, null, 0,
3841                                        ActivityManager.START_FLAG_ONLY_IF_NEEDED,
3842                                        null, null, null);
3843                        if (result == ActivityManager.START_RETURN_INTENT_TO_CALLER) {
3844                            return false;
3845                        }
3846                    }
3847                }
3848                int result = ActivityManagerNative.getDefault()
3849                        .startActivity(null, mHomeIntent,
3850                                mHomeIntent.resolveTypeIfNeeded(mContext.getContentResolver()),
3851                                null, null, 0,
3852                                ActivityManager.START_FLAG_ONLY_IF_NEEDED,
3853                                null, null, null);
3854                if (result == ActivityManager.START_RETURN_INTENT_TO_CALLER) {
3855                    return false;
3856                }
3857            } catch (RemoteException ex) {
3858                // bummer, the activity manager, which is in this process, is dead
3859            }
3860        }
3861        return true;
3862    }
3863
3864    public void setCurrentOrientationLw(int newOrientation) {
3865        synchronized (mLock) {
3866            if (newOrientation != mCurrentAppOrientation) {
3867                mCurrentAppOrientation = newOrientation;
3868                updateOrientationListenerLp();
3869            }
3870        }
3871    }
3872
3873    public boolean performHapticFeedbackLw(WindowState win, int effectId, boolean always) {
3874        final boolean hapticsDisabled = Settings.System.getInt(mContext.getContentResolver(),
3875                Settings.System.HAPTIC_FEEDBACK_ENABLED, 0) == 0;
3876        if (!always && (hapticsDisabled || mKeyguardMediator.isShowingAndNotHidden())) {
3877            return false;
3878        }
3879        long[] pattern = null;
3880        switch (effectId) {
3881            case HapticFeedbackConstants.LONG_PRESS:
3882                pattern = mLongPressVibePattern;
3883                break;
3884            case HapticFeedbackConstants.VIRTUAL_KEY:
3885                pattern = mVirtualKeyVibePattern;
3886                break;
3887            case HapticFeedbackConstants.KEYBOARD_TAP:
3888                pattern = mKeyboardTapVibePattern;
3889                break;
3890            case HapticFeedbackConstants.SAFE_MODE_DISABLED:
3891                pattern = mSafeModeDisabledVibePattern;
3892                break;
3893            case HapticFeedbackConstants.SAFE_MODE_ENABLED:
3894                pattern = mSafeModeEnabledVibePattern;
3895                break;
3896            default:
3897                return false;
3898        }
3899        if (pattern.length == 1) {
3900            // One-shot vibration
3901            mVibrator.vibrate(pattern[0]);
3902        } else {
3903            // Pattern vibration
3904            mVibrator.vibrate(pattern, -1);
3905        }
3906        return true;
3907    }
3908
3909    public void screenOnStartedLw() {
3910        // The window manager has just grabbed a wake lock. This is our cue to disable the screen
3911        // saver.
3912        synchronized (mLock) {
3913            mScreenSaverMayRun = false;
3914        }
3915    }
3916
3917    public void screenOnStoppedLw() {
3918        if (mPowerManager.isScreenOn()) {
3919            if (mKeyguardMediator != null && !mKeyguardMediator.isShowingAndNotHidden()) {
3920                long curTime = SystemClock.uptimeMillis();
3921                mPowerManager.userActivity(curTime, false, LocalPowerManager.OTHER_EVENT);
3922            }
3923
3924            synchronized (mLock) {
3925                // even if the keyguard is up, now that all the wakelocks have been released, we
3926                // should re-enable the screen saver
3927                mScreenSaverMayRun = true;
3928                updateScreenSaverTimeoutLocked();
3929            }
3930        }
3931    }
3932
3933    public boolean allowKeyRepeat() {
3934        // disable key repeat when screen is off
3935        return mScreenOnEarly;
3936    }
3937
3938    private int updateSystemUiVisibilityLw() {
3939        // If there is no window focused, there will be nobody to handle the events
3940        // anyway, so just hang on in whatever state we're in until things settle down.
3941        if (mFocusedWindow == null) {
3942            return 0;
3943        }
3944        final int visibility = mFocusedWindow.getSystemUiVisibility()
3945                & ~mResettingSystemUiFlags
3946                & ~mForceClearedSystemUiFlags;
3947        int diff = visibility ^ mLastSystemUiFlags;
3948        final boolean needsMenu = mFocusedWindow.getNeedsMenuLw(mTopFullscreenOpaqueWindowState);
3949        if (diff == 0 && mLastFocusNeedsMenu == needsMenu
3950                && mFocusedApp == mFocusedWindow.getAppToken()) {
3951            return 0;
3952        }
3953        mLastSystemUiFlags = visibility;
3954        mLastFocusNeedsMenu = needsMenu;
3955        mFocusedApp = mFocusedWindow.getAppToken();
3956        mHandler.post(new Runnable() {
3957                public void run() {
3958                    if (mStatusBarService == null) {
3959                        mStatusBarService = IStatusBarService.Stub.asInterface(
3960                                ServiceManager.getService("statusbar"));
3961                    }
3962                    if (mStatusBarService != null) {
3963                        try {
3964                            mStatusBarService.setSystemUiVisibility(visibility);
3965                            mStatusBarService.topAppWindowChanged(needsMenu);
3966                        } catch (RemoteException e) {
3967                            // not much to be done
3968                            mStatusBarService = null;
3969                        }
3970                    }
3971                }
3972            });
3973        return diff;
3974    }
3975
3976    // Use this instead of checking config_showNavigationBar so that it can be consistently
3977    // overridden by qemu.hw.mainkeys in the emulator.
3978    public boolean hasNavigationBar() {
3979        return mHasNavigationBar;
3980    }
3981
3982    public void dump(String prefix, FileDescriptor fd, PrintWriter pw, String[] args) {
3983        pw.print(prefix); pw.print("mSafeMode="); pw.print(mSafeMode);
3984                pw.print(" mSystemReady="); pw.print(mSystemReady);
3985                pw.print(" mSystemBooted="); pw.println(mSystemBooted);
3986        pw.print(prefix); pw.print("mLidOpen="); pw.print(mLidOpen);
3987                pw.print(" mLidOpenRotation="); pw.print(mLidOpenRotation);
3988                pw.print(" mHdmiPlugged="); pw.println(mHdmiPlugged);
3989        if (mLastSystemUiFlags != 0 || mResettingSystemUiFlags != 0
3990                || mForceClearedSystemUiFlags != 0) {
3991            pw.print(prefix); pw.print("mLastSystemUiFlags=0x");
3992                    pw.print(Integer.toHexString(mLastSystemUiFlags));
3993                    pw.print(" mResettingSystemUiFlags=0x");
3994                    pw.print(Integer.toHexString(mResettingSystemUiFlags));
3995                    pw.print(" mForceClearedSystemUiFlags=0x");
3996                    pw.println(Integer.toHexString(mForceClearedSystemUiFlags));
3997        }
3998        if (mLastFocusNeedsMenu) {
3999            pw.print(prefix); pw.print("mLastFocusNeedsMenu=");
4000                    pw.println(mLastFocusNeedsMenu);
4001        }
4002        pw.print(prefix); pw.print("mUiMode="); pw.print(mUiMode);
4003                pw.print(" mDockMode="); pw.print(mDockMode);
4004                pw.print(" mCarDockRotation="); pw.print(mCarDockRotation);
4005                pw.print(" mDeskDockRotation="); pw.println(mDeskDockRotation);
4006        pw.print(prefix); pw.print("mUserRotationMode="); pw.print(mUserRotationMode);
4007                pw.print(" mUserRotation="); pw.print(mUserRotation);
4008                pw.print(" mAllowAllRotations="); pw.println(mAllowAllRotations);
4009        pw.print(prefix); pw.print("mAccelerometerDefault="); pw.print(mAccelerometerDefault);
4010                pw.print(" mCurrentAppOrientation="); pw.println(mCurrentAppOrientation);
4011        pw.print(prefix); pw.print("mCarDockEnablesAccelerometer=");
4012                pw.print(mCarDockEnablesAccelerometer);
4013                pw.print(" mDeskDockEnablesAccelerometer=");
4014                pw.println(mDeskDockEnablesAccelerometer);
4015        pw.print(prefix); pw.print("mLidKeyboardAccessibility=");
4016                pw.print(mLidKeyboardAccessibility);
4017                pw.print(" mLidNavigationAccessibility="); pw.print(mLidNavigationAccessibility);
4018                pw.print(" mLongPressOnPowerBehavior="); pw.println(mLongPressOnPowerBehavior);
4019        pw.print(prefix); pw.print("mScreenOnEarly="); pw.print(mScreenOnEarly);
4020                pw.print(" mScreenOnFully="); pw.print(mScreenOnFully);
4021                pw.print(" mOrientationSensorEnabled="); pw.print(mOrientationSensorEnabled);
4022                pw.print(" mHasSoftInput="); pw.println(mHasSoftInput);
4023        pw.print(prefix); pw.print("mUnrestrictedScreen=("); pw.print(mUnrestrictedScreenLeft);
4024                pw.print(","); pw.print(mUnrestrictedScreenTop);
4025                pw.print(") "); pw.print(mUnrestrictedScreenWidth);
4026                pw.print("x"); pw.println(mUnrestrictedScreenHeight);
4027        pw.print(prefix); pw.print("mRestrictedScreen=("); pw.print(mRestrictedScreenLeft);
4028                pw.print(","); pw.print(mRestrictedScreenTop);
4029                pw.print(") "); pw.print(mRestrictedScreenWidth);
4030                pw.print("x"); pw.println(mRestrictedScreenHeight);
4031        pw.print(prefix); pw.print("mCur=("); pw.print(mCurLeft);
4032                pw.print(","); pw.print(mCurTop);
4033                pw.print(")-("); pw.print(mCurRight);
4034                pw.print(","); pw.print(mCurBottom); pw.println(")");
4035        pw.print(prefix); pw.print("mContent=("); pw.print(mContentLeft);
4036                pw.print(","); pw.print(mContentTop);
4037                pw.print(")-("); pw.print(mContentRight);
4038                pw.print(","); pw.print(mContentBottom); pw.println(")");
4039        pw.print(prefix); pw.print("mDock=("); pw.print(mDockLeft);
4040                pw.print(","); pw.print(mDockTop);
4041                pw.print(")-("); pw.print(mDockRight);
4042                pw.print(","); pw.print(mDockBottom); pw.println(")");
4043        pw.print(prefix); pw.print("mDockLayer="); pw.println(mDockLayer);
4044        pw.print(prefix); pw.print("mTopFullscreenOpaqueWindowState=");
4045                pw.println(mTopFullscreenOpaqueWindowState);
4046        pw.print(prefix); pw.print("mTopIsFullscreen="); pw.print(mTopIsFullscreen);
4047                pw.print(" mForceStatusBar="); pw.print(mForceStatusBar);
4048                pw.print(" mHideLockScreen="); pw.println(mHideLockScreen);
4049        pw.print(prefix); pw.print("mDismissKeyguard="); pw.print(mDismissKeyguard);
4050                pw.print(" mHomePressed="); pw.println(mHomePressed);
4051        pw.print(prefix); pw.print("mAllowLockscreenWhenOn="); pw.print(mAllowLockscreenWhenOn);
4052                pw.print(" mLockScreenTimeout="); pw.print(mLockScreenTimeout);
4053                pw.print(" mLockScreenTimerActive="); pw.println(mLockScreenTimerActive);
4054        pw.print(prefix); pw.print("mEndcallBehavior="); pw.print(mEndcallBehavior);
4055                pw.print(" mIncallPowerBehavior="); pw.print(mIncallPowerBehavior);
4056                pw.print(" mLongPressOnHomeBehavior="); pw.println(mLongPressOnHomeBehavior);
4057        pw.print(prefix); pw.print("mLandscapeRotation="); pw.print(mLandscapeRotation);
4058                pw.print(" mSeascapeRotation="); pw.println(mSeascapeRotation);
4059        pw.print(prefix); pw.print("mPortraitRotation="); pw.print(mPortraitRotation);
4060                pw.print(" mUpsideDownRotation="); pw.println(mUpsideDownRotation);
4061    }
4062}
4063