/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.server;
import android.app.Activity;
import android.app.ActivityManagerNative;
import android.app.AlarmManager;
import android.app.IUiModeManager;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.PendingIntent;
import android.app.StatusBarManager;
import android.app.UiModeManager;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.content.res.Configuration;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.BatteryManager;
import android.os.Binder;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.os.PowerManager;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.os.SystemClock;
import android.provider.Settings;
import android.text.format.DateUtils;
import android.text.format.Time;
import android.util.Slog;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.util.Iterator;
import com.android.internal.R;
import com.android.internal.app.DisableCarModeActivity;
class UiModeManagerService extends IUiModeManager.Stub {
private static final String TAG = UiModeManager.class.getSimpleName();
private static final boolean LOG = false;
private static final String KEY_LAST_UPDATE_INTERVAL = "LAST_UPDATE_INTERVAL";
private static final int MSG_UPDATE_TWILIGHT = 0;
private static final int MSG_ENABLE_LOCATION_UPDATES = 1;
private static final int MSG_GET_NEW_LOCATION_UPDATE = 2;
private static final long LOCATION_UPDATE_MS = 24 * DateUtils.HOUR_IN_MILLIS;
private static final long MIN_LOCATION_UPDATE_MS = 30 * DateUtils.MINUTE_IN_MILLIS;
private static final float LOCATION_UPDATE_DISTANCE_METER = 1000 * 20;
private static final long LOCATION_UPDATE_ENABLE_INTERVAL_MIN = 5000;
private static final long LOCATION_UPDATE_ENABLE_INTERVAL_MAX = 15 * DateUtils.MINUTE_IN_MILLIS;
private static final double FACTOR_GMT_OFFSET_LONGITUDE = 1000.0 * 360.0 / DateUtils.DAY_IN_MILLIS;
private static final String ACTION_UPDATE_NIGHT_MODE = "com.android.server.action.UPDATE_NIGHT_MODE";
private final Context mContext;
final Object mLock = new Object();
private int mDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED;
private int mLastBroadcastState = Intent.EXTRA_DOCK_STATE_UNDOCKED;
private int mNightMode = UiModeManager.MODE_NIGHT_NO;
private boolean mCarModeEnabled = false;
private boolean mCharging = false;
private final boolean mCarModeKeepsScreenOn;
private final boolean mDeskModeKeepsScreenOn;
private boolean mComputedNightMode;
private int mCurUiMode = 0;
private int mSetUiMode = 0;
private boolean mHoldingConfiguration = false;
private Configuration mConfiguration = new Configuration();
private boolean mSystemReady;
private NotificationManager mNotificationManager;
private AlarmManager mAlarmManager;
private LocationManager mLocationManager;
private Location mLocation;
private StatusBarManager mStatusBarManager;
private final PowerManager.WakeLock mWakeLock;
static Intent buildHomeIntent(String category) {
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(category);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
return intent;
}
// The broadcast receiver which receives the result of the ordered broadcast sent when
// the dock state changes. The original ordered broadcast is sent with an initial result
// code of RESULT_OK. If any of the registered broadcast receivers changes this value, e.g.,
// to RESULT_CANCELED, then the intent to start a dock app will not be sent.
private final BroadcastReceiver mResultReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (getResultCode() != Activity.RESULT_OK) {
return;
}
final int enableFlags = intent.getIntExtra("enableFlags", 0);
final int disableFlags = intent.getIntExtra("disableFlags", 0);
synchronized (mLock) {
// Launch a dock activity
String category = null;
if (UiModeManager.ACTION_ENTER_CAR_MODE.equals(intent.getAction())) {
// Only launch car home when car mode is enabled and the caller
// has asked us to switch to it.
if ((enableFlags&UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) {
category = Intent.CATEGORY_CAR_DOCK;
}
} else if (UiModeManager.ACTION_ENTER_DESK_MODE.equals(intent.getAction())) {
// Only launch car home when desk mode is enabled and the caller
// has asked us to switch to it. Currently re-using the car
// mode flag since we don't have a formal API for "desk mode".
if ((enableFlags&UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) {
category = Intent.CATEGORY_DESK_DOCK;
}
} else {
// Launch the standard home app if requested.
if ((disableFlags&UiModeManager.DISABLE_CAR_MODE_GO_HOME) != 0) {
category = Intent.CATEGORY_HOME;
}
}
if (category != null) {
// This is the new activity that will serve as home while
// we are in care mode.
Intent homeIntent = buildHomeIntent(category);
// Now we are going to be careful about switching the
// configuration and starting the activity -- we need to
// do this in a specific order under control of the
// activity manager, to do it cleanly. So compute the
// new config, but don't set it yet, and let the
// activity manager take care of both the start and config
// change.
Configuration newConfig = null;
if (mHoldingConfiguration) {
mHoldingConfiguration = false;
updateConfigurationLocked(false);
newConfig = mConfiguration;
}
try {
ActivityManagerNative.getDefault().startActivityWithConfig(
null, homeIntent, null, null, 0, null, null, 0, false, false,
newConfig);
mHoldingConfiguration = false;
} catch (RemoteException e) {
Slog.w(TAG, e.getCause());
}
}
if (mHoldingConfiguration) {
mHoldingConfiguration = false;
updateConfigurationLocked(true);
}
}
}
};
private final BroadcastReceiver mTwilightUpdateReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (isDoingNightMode() && mNightMode == UiModeManager.MODE_NIGHT_AUTO) {
mHandler.sendEmptyMessage(MSG_UPDATE_TWILIGHT);
}
}
};
private final BroadcastReceiver mDockModeReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
int state = intent.getIntExtra(Intent.EXTRA_DOCK_STATE,
Intent.EXTRA_DOCK_STATE_UNDOCKED);
updateDockState(state);
}
};
private final BroadcastReceiver mBatteryReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
mCharging = (intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, 0) != 0);
synchronized (mLock) {
if (mSystemReady) {
updateLocked(0, 0);
}
}
}
};
private final BroadcastReceiver mUpdateLocationReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (Intent.ACTION_AIRPLANE_MODE_CHANGED.equals(intent.getAction())) {
if (!intent.getBooleanExtra("state", false)) {
// Airplane mode is now off!
mHandler.sendEmptyMessage(MSG_GET_NEW_LOCATION_UPDATE);
}
} else {
// Time zone has changed!
mHandler.sendEmptyMessage(MSG_GET_NEW_LOCATION_UPDATE);
}
}
};
// A LocationListener to initialize the network location provider. The location updates
// are handled through the passive location provider.
private final LocationListener mEmptyLocationListener = new LocationListener() {
public void onLocationChanged(Location location) {
}
public void onProviderDisabled(String provider) {
}
public void onProviderEnabled(String provider) {
}
public void onStatusChanged(String provider, int status, Bundle extras) {
}
};
private final LocationListener mLocationListener = new LocationListener() {
public void onLocationChanged(Location location) {
final boolean hasMoved = hasMoved(location);
final boolean hasBetterAccuracy = mLocation == null
|| location.getAccuracy() < mLocation.getAccuracy();
if (hasMoved || hasBetterAccuracy) {
synchronized (mLock) {
mLocation = location;
if (hasMoved && isDoingNightMode()
&& mNightMode == UiModeManager.MODE_NIGHT_AUTO) {
mHandler.sendEmptyMessage(MSG_UPDATE_TWILIGHT);
}
}
}
}
public void onProviderDisabled(String provider) {
}
public void onProviderEnabled(String provider) {
}
public void onStatusChanged(String provider, int status, Bundle extras) {
}
/*
* The user has moved if the accuracy circles of the two locations
* don't overlap.
*/
private boolean hasMoved(Location location) {
if (location == null) {
return false;
}
if (mLocation == null) {
return true;
}
/* if new location is older than the current one, the devices hasn't
* moved.
*/
if (location.getTime() < mLocation.getTime()) {
return false;
}
/* Get the distance between the two points */
float distance = mLocation.distanceTo(location);
/* Get the total accuracy radius for both locations */
float totalAccuracy = mLocation.getAccuracy() + location.getAccuracy();
/* If the distance is greater than the combined accuracy of the two
* points then they can't overlap and hence the user has moved.
*/
return distance >= totalAccuracy;
}
};
public UiModeManagerService(Context context) {
mContext = context;
ServiceManager.addService(Context.UI_MODE_SERVICE, this);
mAlarmManager =
(AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE);
mLocationManager =
(LocationManager)mContext.getSystemService(Context.LOCATION_SERVICE);
mContext.registerReceiver(mTwilightUpdateReceiver,
new IntentFilter(ACTION_UPDATE_NIGHT_MODE));
mContext.registerReceiver(mDockModeReceiver,
new IntentFilter(Intent.ACTION_DOCK_EVENT));
mContext.registerReceiver(mBatteryReceiver,
new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
IntentFilter filter = new IntentFilter(Intent.ACTION_AIRPLANE_MODE_CHANGED);
filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
mContext.registerReceiver(mUpdateLocationReceiver, filter);
PowerManager powerManager = (PowerManager)context.getSystemService(Context.POWER_SERVICE);
mWakeLock = powerManager.newWakeLock(PowerManager.FULL_WAKE_LOCK, TAG);
mConfiguration.setToDefaults();
mCarModeKeepsScreenOn = (context.getResources().getInteger(
com.android.internal.R.integer.config_carDockKeepsScreenOn) == 1);
mDeskModeKeepsScreenOn = (context.getResources().getInteger(
com.android.internal.R.integer.config_deskDockKeepsScreenOn) == 1);
mNightMode = Settings.Secure.getInt(mContext.getContentResolver(),
Settings.Secure.UI_NIGHT_MODE, UiModeManager.MODE_NIGHT_AUTO);
}
public void disableCarMode(int flags) {
synchronized (mLock) {
setCarModeLocked(false);
if (mSystemReady) {
updateLocked(0, flags);
}
}
}
public void enableCarMode(int flags) {
synchronized (mLock) {
setCarModeLocked(true);
if (mSystemReady) {
updateLocked(flags, 0);
}
}
}
public int getCurrentModeType() {
synchronized (mLock) {
return mCurUiMode & Configuration.UI_MODE_TYPE_MASK;
}
}
public void setNightMode(int mode) throws RemoteException {
synchronized (mLock) {
switch (mode) {
case UiModeManager.MODE_NIGHT_NO:
case UiModeManager.MODE_NIGHT_YES:
case UiModeManager.MODE_NIGHT_AUTO:
break;
default:
throw new IllegalArgumentException("Unknown mode: " + mode);
}
if (!isDoingNightMode()) {
return;
}
if (mNightMode != mode) {
long ident = Binder.clearCallingIdentity();
Settings.Secure.putInt(mContext.getContentResolver(),
Settings.Secure.UI_NIGHT_MODE, mode);
Binder.restoreCallingIdentity(ident);
mNightMode = mode;
updateLocked(0, 0);
}
}
}
public int getNightMode() throws RemoteException {
return mNightMode;
}
void systemReady() {
synchronized (mLock) {
mSystemReady = true;
mCarModeEnabled = mDockState == Intent.EXTRA_DOCK_STATE_CAR;
updateLocked(0, 0);
mHandler.sendEmptyMessage(MSG_ENABLE_LOCATION_UPDATES);
}
}
boolean isDoingNightMode() {
return mCarModeEnabled || mDockState != Intent.EXTRA_DOCK_STATE_UNDOCKED;
}
void setCarModeLocked(boolean enabled) {
if (mCarModeEnabled != enabled) {
mCarModeEnabled = enabled;
}
}
void updateDockState(int newState) {
synchronized (mLock) {
if (newState != mDockState) {
mDockState = newState;
setCarModeLocked(mDockState == Intent.EXTRA_DOCK_STATE_CAR);
if (mSystemReady) {
updateLocked(UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME, 0);
}
}
}
}
final void updateConfigurationLocked(boolean sendIt) {
int uiMode = Configuration.UI_MODE_TYPE_NORMAL;
if (mCarModeEnabled) {
uiMode = Configuration.UI_MODE_TYPE_CAR;
} else if (mDockState == Intent.EXTRA_DOCK_STATE_DESK) {
uiMode = Configuration.UI_MODE_TYPE_DESK;
}
if (mCarModeEnabled) {
if (mNightMode == UiModeManager.MODE_NIGHT_AUTO) {
updateTwilightLocked();
uiMode |= mComputedNightMode ? Configuration.UI_MODE_NIGHT_YES
: Configuration.UI_MODE_NIGHT_NO;
} else {
uiMode |= mNightMode << 4;
}
} else {
// Disabling the car mode clears the night mode.
uiMode = (uiMode & ~Configuration.UI_MODE_NIGHT_MASK) | Configuration.UI_MODE_NIGHT_NO;
}
if (LOG) {
Slog.d(TAG,
"updateConfigurationLocked: mDockState=" + mDockState
+ "; mCarMode=" + mCarModeEnabled
+ "; mNightMode=" + mNightMode
+ "; uiMode=" + uiMode);
}
mCurUiMode = uiMode;
if (!mHoldingConfiguration && uiMode != mSetUiMode) {
mSetUiMode = uiMode;
mConfiguration.uiMode = uiMode;
if (sendIt) {
try {
ActivityManagerNative.getDefault().updateConfiguration(mConfiguration);
} catch (RemoteException e) {
Slog.w(TAG, "Failure communicating with activity manager", e);
}
}
}
}
final void updateLocked(int enableFlags, int disableFlags) {
long ident = Binder.clearCallingIdentity();
try {
String action = null;
String oldAction = null;
if (mLastBroadcastState == Intent.EXTRA_DOCK_STATE_CAR) {
adjustStatusBarCarModeLocked();
oldAction = UiModeManager.ACTION_EXIT_CAR_MODE;
} else if (mLastBroadcastState == Intent.EXTRA_DOCK_STATE_DESK) {
oldAction = UiModeManager.ACTION_EXIT_DESK_MODE;
}
if (mCarModeEnabled) {
if (mLastBroadcastState != Intent.EXTRA_DOCK_STATE_CAR) {
adjustStatusBarCarModeLocked();
if (oldAction != null) {
mContext.sendBroadcast(new Intent(oldAction));
}
mLastBroadcastState = Intent.EXTRA_DOCK_STATE_CAR;
action = UiModeManager.ACTION_ENTER_CAR_MODE;
}
} else if (mDockState == Intent.EXTRA_DOCK_STATE_DESK) {
if (mLastBroadcastState != Intent.EXTRA_DOCK_STATE_DESK) {
if (oldAction != null) {
mContext.sendBroadcast(new Intent(oldAction));
}
mLastBroadcastState = Intent.EXTRA_DOCK_STATE_DESK;
action = UiModeManager.ACTION_ENTER_DESK_MODE;
}
} else {
mLastBroadcastState = Intent.EXTRA_DOCK_STATE_UNDOCKED;
action = oldAction;
}
if (action != null) {
// Send the ordered broadcast; the result receiver will receive after all
// broadcasts have been sent. If any broadcast receiver changes the result
// code from the initial value of RESULT_OK, then the result receiver will
// not launch the corresponding dock application. This gives apps a chance
// to override the behavior and stay in their app even when the device is
// placed into a dock.
Intent intent = new Intent(action);
intent.putExtra("enableFlags", enableFlags);
intent.putExtra("disableFlags", disableFlags);
mContext.sendOrderedBroadcast(intent, null,
mResultReceiver, null, Activity.RESULT_OK, null, null);
// Attempting to make this transition a little more clean, we are going
// to hold off on doing a configuration change until we have finished
// the broadcast and started the home activity.
mHoldingConfiguration = true;
} else {
Intent homeIntent = null;
if (mCarModeEnabled) {
if ((enableFlags&UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) {
homeIntent = buildHomeIntent(Intent.CATEGORY_CAR_DOCK);
}
} else if (mDockState == Intent.EXTRA_DOCK_STATE_DESK) {
if ((enableFlags&UiModeManager.ENABLE_CAR_MODE_GO_CAR_HOME) != 0) {
homeIntent = buildHomeIntent(Intent.CATEGORY_DESK_DOCK);
}
} else {
if ((disableFlags&UiModeManager.DISABLE_CAR_MODE_GO_HOME) != 0) {
homeIntent = buildHomeIntent(Intent.CATEGORY_HOME);
}
}
if (homeIntent != null) {
try {
mContext.startActivity(homeIntent);
} catch (ActivityNotFoundException e) {
}
}
}
updateConfigurationLocked(true);
// keep screen on when charging and in car mode
boolean keepScreenOn = mCharging &&
((mCarModeEnabled && mCarModeKeepsScreenOn) ||
(mCurUiMode == Configuration.UI_MODE_TYPE_DESK && mDeskModeKeepsScreenOn));
if (keepScreenOn != mWakeLock.isHeld()) {
if (keepScreenOn) {
mWakeLock.acquire();
} else {
mWakeLock.release();
}
}
} finally {
Binder.restoreCallingIdentity(ident);
}
}
private void adjustStatusBarCarModeLocked() {
if (mStatusBarManager == null) {
mStatusBarManager = (StatusBarManager) mContext.getSystemService(Context.STATUS_BAR_SERVICE);
}
// Fear not: StatusBarService manages a list of requests to disable
// features of the status bar; these are ORed together to form the
// active disabled list. So if (for example) the device is locked and
// the status bar should be totally disabled, the calls below will
// have no effect until the device is unlocked.
if (mStatusBarManager != null) {
mStatusBarManager.disable(mCarModeEnabled
? StatusBarManager.DISABLE_NOTIFICATION_TICKER
: StatusBarManager.DISABLE_NONE);
}
if (mNotificationManager == null) {
mNotificationManager = (NotificationManager)
mContext.getSystemService(Context.NOTIFICATION_SERVICE);
}
if (mNotificationManager != null) {
if (mCarModeEnabled) {
Intent carModeOffIntent = new Intent(mContext, DisableCarModeActivity.class);
Notification n = new Notification();
n.icon = R.drawable.stat_notify_car_mode;
n.defaults = Notification.DEFAULT_LIGHTS;
n.flags = Notification.FLAG_ONGOING_EVENT;
n.when = 0;
n.setLatestEventInfo(
mContext,
mContext.getString(R.string.car_mode_disable_notification_title),
mContext.getString(R.string.car_mode_disable_notification_message),
PendingIntent.getActivity(mContext, 0, carModeOffIntent, 0));
mNotificationManager.notify(0, n);
} else {
mNotificationManager.cancel(0);
}
}
}
private final Handler mHandler = new Handler() {
boolean mPassiveListenerEnabled;
boolean mNetworkListenerEnabled;
boolean mDidFirstInit;
long mLastNetworkRegisterTime = -MIN_LOCATION_UPDATE_MS;
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_UPDATE_TWILIGHT:
synchronized (mLock) {
if (isDoingNightMode() && mLocation != null
&& mNightMode == UiModeManager.MODE_NIGHT_AUTO) {
updateTwilightLocked();
updateLocked(0, 0);
}
}
break;
case MSG_GET_NEW_LOCATION_UPDATE:
if (!mNetworkListenerEnabled) {
// Don't do anything -- we are still trying to get a
// location.
return;
}
if ((mLastNetworkRegisterTime+MIN_LOCATION_UPDATE_MS)
>= SystemClock.elapsedRealtime()) {
// Don't do anything -- it hasn't been long enough
// since we last requested an update.
return;
}
// Unregister the current location monitor, so we can
// register a new one for it to get an immediate update.
mNetworkListenerEnabled = false;
mLocationManager.removeUpdates(mEmptyLocationListener);
// Fall through to re-register listener.
case MSG_ENABLE_LOCATION_UPDATES:
// enable network provider to receive at least location updates for a given
// distance.
boolean networkLocationEnabled;
try {
networkLocationEnabled =
mLocationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
} catch (Exception e) {
// we may get IllegalArgumentException if network location provider
// does not exist or is not yet installed.
networkLocationEnabled = false;
}
if (!mNetworkListenerEnabled && networkLocationEnabled) {
mNetworkListenerEnabled = true;
mLastNetworkRegisterTime = SystemClock.elapsedRealtime();
mLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,
LOCATION_UPDATE_MS, 0, mEmptyLocationListener);
if (!mDidFirstInit) {
mDidFirstInit = true;
if (mLocation == null) {
retrieveLocation();
}
synchronized (mLock) {
if (isDoingNightMode() && mLocation != null
&& mNightMode == UiModeManager.MODE_NIGHT_AUTO) {
updateTwilightLocked();
updateLocked(0, 0);
}
}
}
}
// enable passive provider to receive updates from location fixes (gps
// and network).
boolean passiveLocationEnabled;
try {
passiveLocationEnabled =
mLocationManager.isProviderEnabled(LocationManager.PASSIVE_PROVIDER);
} catch (Exception e) {
// we may get IllegalArgumentException if passive location provider
// does not exist or is not yet installed.
passiveLocationEnabled = false;
}
if (!mPassiveListenerEnabled && passiveLocationEnabled) {
mPassiveListenerEnabled = true;
mLocationManager.requestLocationUpdates(LocationManager.PASSIVE_PROVIDER,
0, LOCATION_UPDATE_DISTANCE_METER , mLocationListener);
}
if (!(mNetworkListenerEnabled && mPassiveListenerEnabled)) {
long interval = msg.getData().getLong(KEY_LAST_UPDATE_INTERVAL);
interval *= 1.5;
if (interval == 0) {
interval = LOCATION_UPDATE_ENABLE_INTERVAL_MIN;
} else if (interval > LOCATION_UPDATE_ENABLE_INTERVAL_MAX) {
interval = LOCATION_UPDATE_ENABLE_INTERVAL_MAX;
}
Bundle bundle = new Bundle();
bundle.putLong(KEY_LAST_UPDATE_INTERVAL, interval);
Message newMsg = mHandler.obtainMessage(MSG_ENABLE_LOCATION_UPDATES);
newMsg.setData(bundle);
mHandler.sendMessageDelayed(newMsg, interval);
}
break;
}
}
private void retrieveLocation() {
Location location = null;
final Iterator<String> providers =
mLocationManager.getProviders(new Criteria(), true).iterator();
while (providers.hasNext()) {
final Location lastKnownLocation =
mLocationManager.getLastKnownLocation(providers.next());
// pick the most recent location
if (location == null || (lastKnownLocation != null &&
location.getTime() < lastKnownLocation.getTime())) {
location = lastKnownLocation;
}
}
// In the case there is no location available (e.g. GPS fix or network location
// is not available yet), the longitude of the location is estimated using the timezone,
// latitude and accuracy are set to get a good average.
if (location == null) {
Time currentTime = new Time();
currentTime.set(System.currentTimeMillis());
double lngOffset = FACTOR_GMT_OFFSET_LONGITUDE *
(currentTime.gmtoff - (currentTime.isDst > 0 ? 3600 : 0));
location = new Location("fake");
location.setLongitude(lngOffset);
location.setLatitude(0);
location.setAccuracy(417000.0f);
location.setTime(System.currentTimeMillis());
}
synchronized (mLock) {
mLocation = location;
}
}
};
void updateTwilightLocked() {
if (mLocation == null) {
return;
}
final long currentTime = System.currentTimeMillis();
boolean nightMode;
// calculate current twilight
TwilightCalculator tw = new TwilightCalculator();
tw.calculateTwilight(currentTime,
mLocation.getLatitude(), mLocation.getLongitude());
if (tw.mState == TwilightCalculator.DAY) {
nightMode = false;
} else {
nightMode = true;
}
// schedule next update
long nextUpdate = 0;
if (tw.mSunrise == -1 || tw.mSunset == -1) {
// In the case the day or night never ends the update is scheduled 12 hours later.
nextUpdate = currentTime + 12 * DateUtils.HOUR_IN_MILLIS;
} else {
final int mLastTwilightState = tw.mState;
// add some extra time to be on the save side.
nextUpdate += DateUtils.MINUTE_IN_MILLIS;
if (currentTime > tw.mSunset) {
// next update should be on the following day
tw.calculateTwilight(currentTime
+ DateUtils.DAY_IN_MILLIS, mLocation.getLatitude(),
mLocation.getLongitude());
}
if (mLastTwilightState == TwilightCalculator.NIGHT) {
nextUpdate += tw.mSunrise;
} else {
nextUpdate += tw.mSunset;
}
}
Intent updateIntent = new Intent(ACTION_UPDATE_NIGHT_MODE);
PendingIntent pendingIntent =
PendingIntent.getBroadcast(mContext, 0, updateIntent, 0);
mAlarmManager.cancel(pendingIntent);
mAlarmManager.set(AlarmManager.RTC_WAKEUP, nextUpdate, pendingIntent);
mComputedNightMode = nightMode;
}
@Override
protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP)
!= PackageManager.PERMISSION_GRANTED) {
pw.println("Permission Denial: can't dump uimode service from from pid="
+ Binder.getCallingPid()
+ ", uid=" + Binder.getCallingUid());
return;
}
synchronized (mLock) {
pw.println("Current UI Mode Service state:");
pw.print(" mDockState="); pw.print(mDockState);
pw.print(" mLastBroadcastState="); pw.println(mLastBroadcastState);
pw.print(" mNightMode="); pw.print(mNightMode);
pw.print(" mCarModeEnabled="); pw.print(mCarModeEnabled);
pw.print(" mComputedNightMode="); pw.println(mComputedNightMode);
pw.print(" mCurUiMode=0x"); pw.print(Integer.toHexString(mCurUiMode));
pw.print(" mSetUiMode=0x"); pw.println(Integer.toHexString(mSetUiMode));
pw.print(" mHoldingConfiguration="); pw.print(mHoldingConfiguration);
pw.print(" mSystemReady="); pw.println(mSystemReady);
if (mLocation != null) {
pw.print(" mLocation="); pw.println(mLocation);
}
}
}
}