src.com.android.systemui.statusbar.policy.UserSwitcherController Maven / Gradle / Ivy
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/*
* Copyright (C) 2014 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.systemui.statusbar.policy;
import static android.os.UserManager.SWITCHABILITY_STATUS_OK;
import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
import static com.android.systemui.DejankUtils.whitelistIpcs;
import android.annotation.UserIdInt;
import android.app.ActivityManager;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.IActivityTaskManager;
import android.app.admin.DevicePolicyManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.UserInfo;
import android.database.ContentObserver;
import android.graphics.Bitmap;
import android.graphics.ColorFilter;
import android.graphics.ColorMatrix;
import android.graphics.ColorMatrixColorFilter;
import android.graphics.drawable.Drawable;
import android.os.AsyncTask;
import android.os.Handler;
import android.os.RemoteException;
import android.os.UserHandle;
import android.os.UserManager;
import android.provider.Settings;
import android.telephony.TelephonyCallback;
import android.util.Log;
import android.util.SparseArray;
import android.util.SparseBooleanArray;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManagerGlobal;
import android.widget.BaseAdapter;
import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.logging.UiEventLogger;
import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
import com.android.settingslib.RestrictedLockUtilsInternal;
import com.android.systemui.Dumpable;
import com.android.systemui.GuestResumeSessionReceiver;
import com.android.systemui.Prefs;
import com.android.systemui.Prefs.Key;
import com.android.systemui.R;
import com.android.systemui.SystemUISecondaryUserService;
import com.android.systemui.broadcast.BroadcastDispatcher;
import com.android.systemui.dagger.SysUISingleton;
import com.android.systemui.dagger.qualifiers.Background;
import com.android.systemui.dagger.qualifiers.Main;
import com.android.systemui.plugins.ActivityStarter;
import com.android.systemui.plugins.FalsingManager;
import com.android.systemui.plugins.qs.DetailAdapter;
import com.android.systemui.qs.QSUserSwitcherEvent;
import com.android.systemui.qs.tiles.UserDetailView;
import com.android.systemui.settings.UserTracker;
import com.android.systemui.statusbar.phone.SystemUIDialog;
import com.android.systemui.telephony.TelephonyListenerManager;
import com.android.systemui.user.CreateUserActivity;
import com.android.systemui.util.settings.SecureSettings;
import java.io.FileDescriptor;
import java.io.PrintWriter;
import java.lang.ref.WeakReference;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.Executor;
import java.util.concurrent.atomic.AtomicBoolean;
import javax.inject.Inject;
import javax.inject.Provider;
/**
* Keeps a list of all users on the device for user switching.
*/
@SysUISingleton
public class UserSwitcherController implements Dumpable {
public static final float USER_SWITCH_ENABLED_ALPHA = 1.0f;
public static final float USER_SWITCH_DISABLED_ALPHA = 0.38f;
private static final String TAG = "UserSwitcherController";
private static final boolean DEBUG = false;
private static final String SIMPLE_USER_SWITCHER_GLOBAL_SETTING =
"lockscreenSimpleUserSwitcher";
private static final int PAUSE_REFRESH_USERS_TIMEOUT_MS = 3000;
private static final String PERMISSION_SELF = "com.android.systemui.permission.SELF";
protected final Context mContext;
protected final UserTracker mUserTracker;
protected final UserManager mUserManager;
private final ContentObserver mSettingsObserver;
private final ArrayList> mAdapters = new ArrayList<>();
@VisibleForTesting
final GuestResumeSessionReceiver mGuestResumeSessionReceiver;
private final KeyguardStateController mKeyguardStateController;
private final DeviceProvisionedController mDeviceProvisionedController;
private final DevicePolicyManager mDevicePolicyManager;
protected final Handler mHandler;
private final ActivityStarter mActivityStarter;
private final BroadcastDispatcher mBroadcastDispatcher;
private final TelephonyListenerManager mTelephonyListenerManager;
private final IActivityTaskManager mActivityTaskManager;
private ArrayList mUsers = new ArrayList<>();
@VisibleForTesting
AlertDialog mExitGuestDialog;
@VisibleForTesting
Dialog mAddUserDialog;
private int mLastNonGuestUser = UserHandle.USER_SYSTEM;
private boolean mResumeUserOnGuestLogout = true;
private boolean mSimpleUserSwitcher;
// When false, there won't be any visual affordance to add a new user from the keyguard even if
// the user is unlocked
private boolean mAddUsersFromLockScreen;
@VisibleForTesting
boolean mPauseRefreshUsers;
private int mSecondaryUser = UserHandle.USER_NULL;
private Intent mSecondaryUserServiceIntent;
private SparseBooleanArray mForcePictureLoadForUserId = new SparseBooleanArray(2);
private final UiEventLogger mUiEventLogger;
public final DetailAdapter mUserDetailAdapter;
private final Executor mBgExecutor;
private final boolean mGuestUserAutoCreated;
private final AtomicBoolean mGuestIsResetting;
private final AtomicBoolean mGuestCreationScheduled;
private FalsingManager mFalsingManager;
@Inject
public UserSwitcherController(Context context,
UserManager userManager,
UserTracker userTracker,
KeyguardStateController keyguardStateController,
DeviceProvisionedController deviceProvisionedController,
DevicePolicyManager devicePolicyManager,
@Main Handler handler,
ActivityStarter activityStarter,
BroadcastDispatcher broadcastDispatcher,
UiEventLogger uiEventLogger,
FalsingManager falsingManager,
TelephonyListenerManager telephonyListenerManager,
IActivityTaskManager activityTaskManager,
UserDetailAdapter userDetailAdapter,
SecureSettings secureSettings,
@Background Executor bgExecutor) {
mContext = context;
mUserTracker = userTracker;
mBroadcastDispatcher = broadcastDispatcher;
mTelephonyListenerManager = telephonyListenerManager;
mActivityTaskManager = activityTaskManager;
mUiEventLogger = uiEventLogger;
mFalsingManager = falsingManager;
mGuestResumeSessionReceiver = new GuestResumeSessionReceiver(
this, mUserTracker, mUiEventLogger, secureSettings);
mUserDetailAdapter = userDetailAdapter;
mBgExecutor = bgExecutor;
if (!UserManager.isGuestUserEphemeral()) {
mGuestResumeSessionReceiver.register(mBroadcastDispatcher);
}
mGuestUserAutoCreated = mContext.getResources().getBoolean(
com.android.internal.R.bool.config_guestUserAutoCreated);
mGuestIsResetting = new AtomicBoolean();
mGuestCreationScheduled = new AtomicBoolean();
mKeyguardStateController = keyguardStateController;
mDeviceProvisionedController = deviceProvisionedController;
mDevicePolicyManager = devicePolicyManager;
mHandler = handler;
mActivityStarter = activityStarter;
mUserManager = userManager;
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_USER_ADDED);
filter.addAction(Intent.ACTION_USER_REMOVED);
filter.addAction(Intent.ACTION_USER_INFO_CHANGED);
filter.addAction(Intent.ACTION_USER_SWITCHED);
filter.addAction(Intent.ACTION_USER_STOPPED);
filter.addAction(Intent.ACTION_USER_UNLOCKED);
mBroadcastDispatcher.registerReceiver(
mReceiver, filter, null /* handler */, UserHandle.SYSTEM);
mSimpleUserSwitcher = shouldUseSimpleUserSwitcher();
mSecondaryUserServiceIntent = new Intent(context, SystemUISecondaryUserService.class);
filter = new IntentFilter();
mContext.registerReceiverAsUser(mReceiver, UserHandle.SYSTEM, filter,
PERMISSION_SELF, null /* scheduler */);
mSettingsObserver = new ContentObserver(mHandler) {
@Override
public void onChange(boolean selfChange) {
mSimpleUserSwitcher = shouldUseSimpleUserSwitcher();
mAddUsersFromLockScreen = Settings.Global.getInt(mContext.getContentResolver(),
Settings.Global.ADD_USERS_WHEN_LOCKED, 0) != 0;
refreshUsers(UserHandle.USER_NULL);
};
};
mContext.getContentResolver().registerContentObserver(
Settings.Global.getUriFor(SIMPLE_USER_SWITCHER_GLOBAL_SETTING), true,
mSettingsObserver);
mContext.getContentResolver().registerContentObserver(
Settings.Global.getUriFor(Settings.Global.ADD_USERS_WHEN_LOCKED), true,
mSettingsObserver);
mContext.getContentResolver().registerContentObserver(
Settings.Global.getUriFor(
Settings.Global.ALLOW_USER_SWITCHING_WHEN_SYSTEM_USER_LOCKED),
true, mSettingsObserver);
// Fetch initial values.
mSettingsObserver.onChange(false);
keyguardStateController.addCallback(mCallback);
listenForCallState();
refreshUsers(UserHandle.USER_NULL);
}
/**
* Refreshes users from UserManager.
*
* The pictures are only loaded if they have not been loaded yet.
*
* @param forcePictureLoadForId forces the picture of the given user to be reloaded.
*/
@SuppressWarnings("unchecked")
private void refreshUsers(int forcePictureLoadForId) {
if (DEBUG) Log.d(TAG, "refreshUsers(forcePictureLoadForId=" + forcePictureLoadForId+")");
if (forcePictureLoadForId != UserHandle.USER_NULL) {
mForcePictureLoadForUserId.put(forcePictureLoadForId, true);
}
if (mPauseRefreshUsers) {
return;
}
boolean forceAllUsers = mForcePictureLoadForUserId.get(UserHandle.USER_ALL);
SparseArray bitmaps = new SparseArray<>(mUsers.size());
final int N = mUsers.size();
for (int i = 0; i < N; i++) {
UserRecord r = mUsers.get(i);
if (r == null || r.picture == null || r.info == null || forceAllUsers
|| mForcePictureLoadForUserId.get(r.info.id)) {
continue;
}
bitmaps.put(r.info.id, r.picture);
}
mForcePictureLoadForUserId.clear();
final boolean addUsersWhenLocked = mAddUsersFromLockScreen;
new AsyncTask, Void, ArrayList>() {
@SuppressWarnings("unchecked")
@Override
protected ArrayList doInBackground(SparseArray... params) {
final SparseArray bitmaps = params[0];
List infos = mUserManager.getAliveUsers();
if (infos == null) {
return null;
}
ArrayList records = new ArrayList<>(infos.size());
int currentId = mUserTracker.getUserId();
// Check user switchability of the foreground user since SystemUI is running in
// User 0
boolean canSwitchUsers = mUserManager.getUserSwitchability(
UserHandle.of(mUserTracker.getUserId())) == SWITCHABILITY_STATUS_OK;
UserInfo currentUserInfo = null;
UserRecord guestRecord = null;
for (UserInfo info : infos) {
boolean isCurrent = currentId == info.id;
if (isCurrent) {
currentUserInfo = info;
}
boolean switchToEnabled = canSwitchUsers || isCurrent;
if (info.isEnabled()) {
if (info.isGuest()) {
// Tapping guest icon triggers remove and a user switch therefore
// the icon shouldn't be enabled even if the user is current
guestRecord = new UserRecord(info, null /* picture */,
true /* isGuest */, isCurrent, false /* isAddUser */,
false /* isRestricted */, canSwitchUsers);
} else if (info.supportsSwitchToByUser()) {
Bitmap picture = bitmaps.get(info.id);
if (picture == null) {
picture = mUserManager.getUserIcon(info.id);
if (picture != null) {
int avatarSize = mContext.getResources()
.getDimensionPixelSize(R.dimen.max_avatar_size);
picture = Bitmap.createScaledBitmap(
picture, avatarSize, avatarSize, true);
}
}
records.add(new UserRecord(info, picture, false /* isGuest */,
isCurrent, false /* isAddUser */, false /* isRestricted */,
switchToEnabled));
}
}
}
if (records.size() > 1 || guestRecord != null) {
Prefs.putBoolean(mContext, Key.SEEN_MULTI_USER, true);
}
boolean systemCanCreateUsers = !mUserManager.hasBaseUserRestriction(
UserManager.DISALLOW_ADD_USER, UserHandle.SYSTEM);
boolean currentUserCanCreateUsers = currentUserInfo != null
&& (currentUserInfo.isAdmin()
|| currentUserInfo.id == UserHandle.USER_SYSTEM)
&& systemCanCreateUsers;
boolean anyoneCanCreateUsers = systemCanCreateUsers && addUsersWhenLocked;
boolean canCreateGuest = (currentUserCanCreateUsers || anyoneCanCreateUsers)
&& guestRecord == null;
boolean canCreateUser = (currentUserCanCreateUsers || anyoneCanCreateUsers)
&& mUserManager.canAddMoreUsers();
boolean createIsRestricted = !addUsersWhenLocked;
if (guestRecord == null) {
if (mGuestUserAutoCreated) {
// If mGuestIsResetting=true, the switch should be disabled since
// we will just use it as an indicator for "Resetting guest...".
// Otherwise, default to canSwitchUsers.
boolean isSwitchToGuestEnabled =
!mGuestIsResetting.get() && canSwitchUsers;
guestRecord = new UserRecord(null /* info */, null /* picture */,
true /* isGuest */, false /* isCurrent */,
false /* isAddUser */, false /* isRestricted */,
isSwitchToGuestEnabled);
checkIfAddUserDisallowedByAdminOnly(guestRecord);
records.add(guestRecord);
} else if (canCreateGuest) {
guestRecord = new UserRecord(null /* info */, null /* picture */,
true /* isGuest */, false /* isCurrent */,
false /* isAddUser */, createIsRestricted, canSwitchUsers);
checkIfAddUserDisallowedByAdminOnly(guestRecord);
records.add(guestRecord);
}
} else {
records.add(guestRecord);
}
if (canCreateUser) {
UserRecord addUserRecord = new UserRecord(null /* info */, null /* picture */,
false /* isGuest */, false /* isCurrent */, true /* isAddUser */,
createIsRestricted, canSwitchUsers);
checkIfAddUserDisallowedByAdminOnly(addUserRecord);
records.add(addUserRecord);
}
return records;
}
@Override
protected void onPostExecute(ArrayList userRecords) {
if (userRecords != null) {
mUsers = userRecords;
notifyAdapters();
}
}
}.execute((SparseArray) bitmaps);
}
private void pauseRefreshUsers() {
if (!mPauseRefreshUsers) {
mHandler.postDelayed(mUnpauseRefreshUsers, PAUSE_REFRESH_USERS_TIMEOUT_MS);
mPauseRefreshUsers = true;
}
}
private void notifyAdapters() {
for (int i = mAdapters.size() - 1; i >= 0; i--) {
BaseUserAdapter adapter = mAdapters.get(i).get();
if (adapter != null) {
adapter.notifyDataSetChanged();
} else {
mAdapters.remove(i);
}
}
}
public boolean isSimpleUserSwitcher() {
return mSimpleUserSwitcher;
}
public boolean useFullscreenUserSwitcher() {
// Use adb to override:
// adb shell settings put system enable_fullscreen_user_switcher 0 # Turn it off.
// adb shell settings put system enable_fullscreen_user_switcher 1 # Turn it on.
// Restart SystemUI or adb reboot.
final int DEFAULT = -1;
final int overrideUseFullscreenUserSwitcher =
whitelistIpcs(() -> Settings.System.getInt(mContext.getContentResolver(),
"enable_fullscreen_user_switcher", DEFAULT));
if (overrideUseFullscreenUserSwitcher != DEFAULT) {
return overrideUseFullscreenUserSwitcher != 0;
}
// Otherwise default to the build setting.
return mContext.getResources().getBoolean(R.bool.config_enableFullscreenUserSwitcher);
}
public void setResumeUserOnGuestLogout(boolean resume) {
mResumeUserOnGuestLogout = resume;
}
public void logoutCurrentUser() {
int currentUser = mUserTracker.getUserId();
if (currentUser != UserHandle.USER_SYSTEM) {
pauseRefreshUsers();
ActivityManager.logoutCurrentUser();
}
}
public void removeUserId(int userId) {
if (userId == UserHandle.USER_SYSTEM) {
Log.w(TAG, "User " + userId + " could not removed.");
return;
}
if (mUserTracker.getUserId() == userId) {
switchToUserId(UserHandle.USER_SYSTEM);
}
if (mUserManager.removeUser(userId)) {
refreshUsers(UserHandle.USER_NULL);
}
}
@VisibleForTesting
void onUserListItemClicked(UserRecord record) {
int id;
if (record.isGuest && record.info == null) {
// No guest user. Create one.
int guestId = createGuest();
if (guestId == UserHandle.USER_NULL) {
// This may happen if we haven't reloaded the user list yet.
return;
}
mUiEventLogger.log(QSUserSwitcherEvent.QS_USER_GUEST_ADD);
id = guestId;
} else if (record.isAddUser) {
showAddUserDialog();
return;
} else {
id = record.info.id;
}
int currUserId = mUserTracker.getUserId();
if (currUserId == id) {
if (record.isGuest) {
showExitGuestDialog(id);
}
return;
}
if (UserManager.isGuestUserEphemeral()) {
// If switching from guest, we want to bring up the guest exit dialog instead of switching
UserInfo currUserInfo = mUserManager.getUserInfo(currUserId);
if (currUserInfo != null && currUserInfo.isGuest()) {
showExitGuestDialog(currUserId, record.resolveId());
return;
}
}
switchToUserId(id);
}
protected void switchToUserId(int id) {
try {
pauseRefreshUsers();
ActivityManager.getService().switchUser(id);
} catch (RemoteException e) {
Log.e(TAG, "Couldn't switch user.", e);
}
}
protected void showExitGuestDialog(int id) {
int newId = UserHandle.USER_SYSTEM;
if (mResumeUserOnGuestLogout && mLastNonGuestUser != UserHandle.USER_SYSTEM) {
UserInfo info = mUserManager.getUserInfo(mLastNonGuestUser);
if (info != null && info.isEnabled() && info.supportsSwitchToByUser()) {
newId = info.id;
}
}
showExitGuestDialog(id, newId);
}
protected void showExitGuestDialog(int id, int targetId) {
if (mExitGuestDialog != null && mExitGuestDialog.isShowing()) {
mExitGuestDialog.cancel();
}
mExitGuestDialog = new ExitGuestDialog(mContext, id, targetId);
mExitGuestDialog.show();
}
public void showAddUserDialog() {
if (mAddUserDialog != null && mAddUserDialog.isShowing()) {
mAddUserDialog.cancel();
}
mAddUserDialog = new AddUserDialog(mContext);
mAddUserDialog.show();
}
private void listenForCallState() {
mTelephonyListenerManager.addCallStateListener(mPhoneStateListener);
}
private final TelephonyCallback.CallStateListener mPhoneStateListener =
new TelephonyCallback.CallStateListener() {
private int mCallState;
@Override
public void onCallStateChanged(int state) {
if (mCallState == state) return;
if (DEBUG) Log.v(TAG, "Call state changed: " + state);
mCallState = state;
refreshUsers(UserHandle.USER_NULL);
}
};
private BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
if (DEBUG) {
Log.v(TAG, "Broadcast: a=" + intent.getAction()
+ " user=" + intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1));
}
boolean unpauseRefreshUsers = false;
int forcePictureLoadForId = UserHandle.USER_NULL;
if (Intent.ACTION_USER_SWITCHED.equals(intent.getAction())) {
if (mExitGuestDialog != null && mExitGuestDialog.isShowing()) {
mExitGuestDialog.cancel();
mExitGuestDialog = null;
}
final int currentId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -1);
final UserInfo userInfo = mUserManager.getUserInfo(currentId);
final int N = mUsers.size();
for (int i = 0; i < N; i++) {
UserRecord record = mUsers.get(i);
if (record.info == null) continue;
boolean shouldBeCurrent = record.info.id == currentId;
if (record.isCurrent != shouldBeCurrent) {
mUsers.set(i, record.copyWithIsCurrent(shouldBeCurrent));
}
if (shouldBeCurrent && !record.isGuest) {
mLastNonGuestUser = record.info.id;
}
if ((userInfo == null || !userInfo.isAdmin()) && record.isRestricted) {
// Immediately remove restricted records in case the AsyncTask is too slow.
mUsers.remove(i);
i--;
}
}
notifyAdapters();
// Disconnect from the old secondary user's service
if (mSecondaryUser != UserHandle.USER_NULL) {
context.stopServiceAsUser(mSecondaryUserServiceIntent,
UserHandle.of(mSecondaryUser));
mSecondaryUser = UserHandle.USER_NULL;
}
// Connect to the new secondary user's service (purely to ensure that a persistent
// SystemUI application is created for that user)
if (userInfo != null && userInfo.id != UserHandle.USER_SYSTEM) {
context.startServiceAsUser(mSecondaryUserServiceIntent,
UserHandle.of(userInfo.id));
mSecondaryUser = userInfo.id;
}
unpauseRefreshUsers = true;
if (mGuestUserAutoCreated) {
// Guest user must be scheduled for creation AFTER switching to the target user.
// This avoids lock contention which will produce UX bugs on the keyguard
// (b/193933686).
// TODO(b/191067027): Move guest user recreation to system_server
guaranteeGuestPresent();
}
} else if (Intent.ACTION_USER_INFO_CHANGED.equals(intent.getAction())) {
forcePictureLoadForId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE,
UserHandle.USER_NULL);
} else if (Intent.ACTION_USER_UNLOCKED.equals(intent.getAction())) {
// Unlocking the system user may require a refresh
int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL);
if (userId != UserHandle.USER_SYSTEM) {
return;
}
}
refreshUsers(forcePictureLoadForId);
if (unpauseRefreshUsers) {
mUnpauseRefreshUsers.run();
}
}
};
private final Runnable mUnpauseRefreshUsers = new Runnable() {
@Override
public void run() {
mHandler.removeCallbacks(this);
mPauseRefreshUsers = false;
refreshUsers(UserHandle.USER_NULL);
}
};
@Override
public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
pw.println("UserSwitcherController state:");
pw.println(" mLastNonGuestUser=" + mLastNonGuestUser);
pw.print(" mUsers.size="); pw.println(mUsers.size());
for (int i = 0; i < mUsers.size(); i++) {
final UserRecord u = mUsers.get(i);
pw.print(" "); pw.println(u.toString());
}
pw.println("mSimpleUserSwitcher=" + mSimpleUserSwitcher);
pw.println("mGuestUserAutoCreated=" + mGuestUserAutoCreated);
}
/** Returns the name of the current user of the phone. */
public String getCurrentUserName() {
if (mUsers.isEmpty()) return null;
UserRecord item = mUsers.get(0);
if (item == null || item.info == null) return null;
if (item.isGuest) return mContext.getString(
com.android.settingslib.R.string.guest_nickname);
return item.info.name;
}
public void onDensityOrFontScaleChanged() {
refreshUsers(UserHandle.USER_ALL);
}
@VisibleForTesting
public void addAdapter(WeakReference adapter) {
mAdapters.add(adapter);
}
@VisibleForTesting
public ArrayList getUsers() {
return mUsers;
}
/**
* Removes guest user and switches to target user. The guest must be the current user and its id
* must be {@code guestUserId}.
*
* If {@code targetUserId} is {@link UserHandle.USER_NULL}, then create a new guest user in
* the foreground, and immediately switch to it. This is used for wiping the current guest and
* replacing it with a new one.
*
*
If {@code targetUserId} is specified, then remove the guest in the background while
* switching to {@code targetUserId}.
*
*
If device is configured with {@link
* com.android.internal.R.bool.config_guestUserAutoCreated}, then after guest user is removed, a
* new one is created in the background. This has no effect if {@code targetUserId} is {@link
* UserHandle.USER_NULL}.
*
* @param guestUserId id of the guest user to remove
* @param targetUserId id of the user to switch to after guest is removed. If {@link
* UserHandle.USER_NULL}, then switch immediately to the newly created guest user.
*/
public void removeGuestUser(@UserIdInt int guestUserId, @UserIdInt int targetUserId) {
UserInfo currentUser = mUserTracker.getUserInfo();
if (currentUser.id != guestUserId) {
Log.w(TAG, "User requesting to start a new session (" + guestUserId + ")"
+ " is not current user (" + currentUser.id + ")");
return;
}
if (!currentUser.isGuest()) {
Log.w(TAG, "User requesting to start a new session (" + guestUserId + ")"
+ " is not a guest");
return;
}
boolean marked = mUserManager.markGuestForDeletion(currentUser.id);
if (!marked) {
Log.w(TAG, "Couldn't mark the guest for deletion for user " + guestUserId);
return;
}
try {
if (targetUserId == UserHandle.USER_NULL) {
// Create a new guest in the foreground, and then immediately switch to it
int newGuestId = createGuest();
if (newGuestId == UserHandle.USER_NULL) {
Log.e(TAG, "Could not create new guest, switching back to system user");
switchToUserId(UserHandle.USER_SYSTEM);
mUserManager.removeUser(currentUser.id);
WindowManagerGlobal.getWindowManagerService().lockNow(/* options= */ null);
return;
}
switchToUserId(newGuestId);
mUserManager.removeUser(currentUser.id);
} else {
if (mGuestUserAutoCreated) {
mGuestIsResetting.set(true);
}
switchToUserId(targetUserId);
mUserManager.removeUser(currentUser.id);
}
} catch (RemoteException e) {
Log.e(TAG, "Couldn't remove guest because ActivityManager or WindowManager is dead");
return;
}
}
private void scheduleGuestCreation() {
if (!mGuestCreationScheduled.compareAndSet(false, true)) {
return;
}
mBgExecutor.execute(() -> {
int newGuestId = createGuest();
mGuestCreationScheduled.set(false);
mGuestIsResetting.set(false);
if (newGuestId == UserHandle.USER_NULL) {
Log.w(TAG, "Could not create new guest while exiting existing guest");
// Refresh users so that we still display "Guest" if
// config_guestUserAutoCreated=true
refreshUsers(UserHandle.USER_NULL);
}
});
}
/**
* Guarantee guest is present only if the device is provisioned. Otherwise, create a content
* observer to wait until the device is provisioned, then schedule the guest creation.
*/
public void schedulePostBootGuestCreation() {
if (isDeviceAllowedToAddGuest()) {
guaranteeGuestPresent();
} else {
mDeviceProvisionedController.addCallback(mGuaranteeGuestPresentAfterProvisioned);
}
}
private boolean isDeviceAllowedToAddGuest() {
return mDeviceProvisionedController.isDeviceProvisioned()
&& !mDevicePolicyManager.isDeviceManaged();
}
/**
* If there is no guest on the device, schedule creation of a new guest user in the background.
*/
private void guaranteeGuestPresent() {
if (isDeviceAllowedToAddGuest() && mUserManager.findCurrentGuestUser() == null) {
scheduleGuestCreation();
}
}
/**
* Creates a guest user and return its multi-user user ID.
*
* This method does not check if a guest already exists before it makes a call to
* {@link UserManager} to create a new one.
*
* @return The multi-user user ID of the newly created guest user, or
* {@link UserHandle.USER_NULL} if the guest couldn't be created.
*/
public @UserIdInt int createGuest() {
UserInfo guest;
try {
guest = mUserManager.createGuest(mContext,
mContext.getString(com.android.settingslib.R.string.guest_nickname));
} catch (UserManager.UserOperationException e) {
Log.e(TAG, "Couldn't create guest user", e);
return UserHandle.USER_NULL;
}
if (guest == null) {
Log.e(TAG, "Couldn't create guest, most likely because there already exists one");
return UserHandle.USER_NULL;
}
return guest.id;
}
public static abstract class BaseUserAdapter extends BaseAdapter {
final UserSwitcherController mController;
private final KeyguardStateController mKeyguardStateController;
protected BaseUserAdapter(UserSwitcherController controller) {
mController = controller;
mKeyguardStateController = controller.mKeyguardStateController;
controller.addAdapter(new WeakReference<>(this));
}
protected ArrayList getUsers() {
return mController.getUsers();
}
public int getUserCount() {
return countUsers(false);
}
@Override
public int getCount() {
return countUsers(true);
}
private int countUsers(boolean includeGuest) {
boolean keyguardShowing = mKeyguardStateController.isShowing();
final int userSize = getUsers().size();
int count = 0;
for (int i = 0; i < userSize; i++) {
if (getUsers().get(i).isGuest && !includeGuest) {
continue;
}
if (getUsers().get(i).isRestricted && keyguardShowing) {
break;
}
count++;
}
return count;
}
@Override
public UserRecord getItem(int position) {
return getUsers().get(position);
}
@Override
public long getItemId(int position) {
return position;
}
/**
* It handles click events on user list items.
*/
public void onUserListItemClicked(UserRecord record) {
mController.onUserListItemClicked(record);
}
public String getName(Context context, UserRecord item) {
if (item.isGuest) {
if (item.isCurrent) {
return context.getString(mController.mGuestUserAutoCreated
? com.android.settingslib.R.string.guest_reset_guest
: com.android.settingslib.R.string.guest_exit_guest);
} else {
if (item.info != null) {
return context.getString(com.android.settingslib.R.string.guest_nickname);
} else {
if (mController.mGuestUserAutoCreated) {
// If mGuestIsResetting=true, we expect the guest user to be created
// shortly, so display a "Resetting guest..." as an indicator that we
// are busy. Otherwise, if mGuestIsResetting=false, we probably failed
// to create a guest at some point. In this case, always show guest
// nickname instead of "Add guest" to make it seem as though the device
// always has a guest ready for use.
return context.getString(
mController.mGuestIsResetting.get()
? com.android.settingslib.R.string.guest_resetting
: com.android.settingslib.R.string.guest_nickname);
} else {
return context.getString(
com.android.settingslib.R.string.guest_new_guest);
}
}
}
} else if (item.isAddUser) {
return context.getString(R.string.user_add_user);
} else {
return item.info.name;
}
}
protected static ColorFilter getDisabledUserAvatarColorFilter() {
ColorMatrix matrix = new ColorMatrix();
matrix.setSaturation(0f); // 0 - grayscale
return new ColorMatrixColorFilter(matrix);
}
protected static Drawable getIconDrawable(Context context, UserRecord item) {
int iconRes;
if (item.isAddUser) {
iconRes = R.drawable.ic_add_circle;
} else if (item.isGuest) {
iconRes = R.drawable.ic_avatar_guest_user;
} else {
iconRes = R.drawable.ic_avatar_user;
}
return context.getDrawable(iconRes);
}
public void refresh() {
mController.refreshUsers(UserHandle.USER_NULL);
}
}
private void checkIfAddUserDisallowedByAdminOnly(UserRecord record) {
EnforcedAdmin admin = RestrictedLockUtilsInternal.checkIfRestrictionEnforced(mContext,
UserManager.DISALLOW_ADD_USER, mUserTracker.getUserId());
if (admin != null && !RestrictedLockUtilsInternal.hasBaseUserRestriction(mContext,
UserManager.DISALLOW_ADD_USER, mUserTracker.getUserId())) {
record.isDisabledByAdmin = true;
record.enforcedAdmin = admin;
} else {
record.isDisabledByAdmin = false;
record.enforcedAdmin = null;
}
}
private boolean shouldUseSimpleUserSwitcher() {
int defaultSimpleUserSwitcher = mContext.getResources().getBoolean(
com.android.internal.R.bool.config_expandLockScreenUserSwitcher) ? 1 : 0;
return Settings.Global.getInt(mContext.getContentResolver(),
SIMPLE_USER_SWITCHER_GLOBAL_SETTING, defaultSimpleUserSwitcher) != 0;
}
public void startActivity(Intent intent) {
mActivityStarter.startActivity(intent, true);
}
public static final class UserRecord {
public final UserInfo info;
public final Bitmap picture;
public final boolean isGuest;
public final boolean isCurrent;
public final boolean isAddUser;
/** If true, the record is only visible to the owner and only when unlocked. */
public final boolean isRestricted;
public boolean isDisabledByAdmin;
public EnforcedAdmin enforcedAdmin;
public boolean isSwitchToEnabled;
public UserRecord(UserInfo info, Bitmap picture, boolean isGuest, boolean isCurrent,
boolean isAddUser, boolean isRestricted, boolean isSwitchToEnabled) {
this.info = info;
this.picture = picture;
this.isGuest = isGuest;
this.isCurrent = isCurrent;
this.isAddUser = isAddUser;
this.isRestricted = isRestricted;
this.isSwitchToEnabled = isSwitchToEnabled;
}
public UserRecord copyWithIsCurrent(boolean _isCurrent) {
return new UserRecord(info, picture, isGuest, _isCurrent, isAddUser, isRestricted,
isSwitchToEnabled);
}
public int resolveId() {
if (isGuest || info == null) {
return UserHandle.USER_NULL;
}
return info.id;
}
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("UserRecord(");
if (info != null) {
sb.append("name=\"").append(info.name).append("\" id=").append(info.id);
} else {
if (isGuest) {
sb.append("");
} else if (isAddUser) {
sb.append("");
}
}
if (isGuest) sb.append(" ");
if (isAddUser) sb.append(" ");
if (isCurrent) sb.append(" ");
if (picture != null) sb.append(" ");
if (isRestricted) sb.append(" ");
if (isDisabledByAdmin) {
sb.append(" ");
sb.append(" enforcedAdmin=").append(enforcedAdmin);
}
if (isSwitchToEnabled) {
sb.append(" ");
}
sb.append(')');
return sb.toString();
}
}
public static class UserDetailAdapter implements DetailAdapter {
private final Intent USER_SETTINGS_INTENT = new Intent(Settings.ACTION_USER_SETTINGS);
private final Context mContext;
private final Provider mUserDetailViewAdapterProvider;
@Inject
UserDetailAdapter(Context context,
Provider userDetailViewAdapterProvider) {
mContext = context;
mUserDetailViewAdapterProvider = userDetailViewAdapterProvider;
}
@Override
public CharSequence getTitle() {
return mContext.getString(R.string.quick_settings_user_title);
}
@Override
public View createDetailView(Context context, View convertView, ViewGroup parent) {
UserDetailView v;
if (!(convertView instanceof UserDetailView)) {
v = UserDetailView.inflate(context, parent, false);
v.setAdapter(mUserDetailViewAdapterProvider.get());
} else {
v = (UserDetailView) convertView;
}
v.refreshAdapter();
return v;
}
@Override
public Intent getSettingsIntent() {
return USER_SETTINGS_INTENT;
}
@Override
public int getSettingsText() {
return R.string.quick_settings_more_user_settings;
}
@Override
public Boolean getToggleState() {
return null;
}
@Override
public void setToggleState(boolean state) {
}
@Override
public int getMetricsCategory() {
return MetricsEvent.QS_USERDETAIL;
}
@Override
public UiEventLogger.UiEventEnum openDetailEvent() {
return QSUserSwitcherEvent.QS_USER_DETAIL_OPEN;
}
@Override
public UiEventLogger.UiEventEnum closeDetailEvent() {
return QSUserSwitcherEvent.QS_USER_DETAIL_CLOSE;
}
@Override
public UiEventLogger.UiEventEnum moreSettingsEvent() {
return QSUserSwitcherEvent.QS_USER_MORE_SETTINGS;
}
};
private final KeyguardStateController.Callback mCallback =
new KeyguardStateController.Callback() {
@Override
public void onKeyguardShowingChanged() {
// When Keyguard is going away, we don't need to update our items immediately
// which
// helps making the transition faster.
if (!mKeyguardStateController.isShowing()) {
mHandler.post(UserSwitcherController.this::notifyAdapters);
} else {
notifyAdapters();
}
}
};
private final DeviceProvisionedController.DeviceProvisionedListener
mGuaranteeGuestPresentAfterProvisioned =
new DeviceProvisionedController.DeviceProvisionedListener() {
@Override
public void onDeviceProvisionedChanged() {
if (isDeviceAllowedToAddGuest()) {
mBgExecutor.execute(
() -> mDeviceProvisionedController.removeCallback(
mGuaranteeGuestPresentAfterProvisioned));
guaranteeGuestPresent();
}
}
};
private final class ExitGuestDialog extends SystemUIDialog implements
DialogInterface.OnClickListener {
private final int mGuestId;
private final int mTargetId;
public ExitGuestDialog(Context context, int guestId, int targetId) {
super(context);
setTitle(mGuestUserAutoCreated
? com.android.settingslib.R.string.guest_reset_guest_dialog_title
: R.string.guest_exit_guest_dialog_title);
setMessage(context.getString(R.string.guest_exit_guest_dialog_message));
setButton(DialogInterface.BUTTON_NEGATIVE,
context.getString(android.R.string.cancel), this);
setButton(DialogInterface.BUTTON_POSITIVE,
context.getString(mGuestUserAutoCreated
? com.android.settingslib.R.string.guest_reset_guest_confirm_button
: R.string.guest_exit_guest_dialog_remove), this);
SystemUIDialog.setWindowOnTop(this);
setCanceledOnTouchOutside(false);
mGuestId = guestId;
mTargetId = targetId;
}
@Override
public void onClick(DialogInterface dialog, int which) {
int penalty = which == BUTTON_NEGATIVE ? FalsingManager.NO_PENALTY
: FalsingManager.HIGH_PENALTY;
if (mFalsingManager.isFalseTap(penalty)) {
return;
}
if (which == BUTTON_NEGATIVE) {
cancel();
} else {
mUiEventLogger.log(QSUserSwitcherEvent.QS_USER_GUEST_REMOVE);
dismiss();
removeGuestUser(mGuestId, mTargetId);
}
}
}
@VisibleForTesting
final class AddUserDialog extends SystemUIDialog implements
DialogInterface.OnClickListener {
public AddUserDialog(Context context) {
super(context);
setTitle(R.string.user_add_user_title);
setMessage(context.getString(R.string.user_add_user_message_short));
setButton(DialogInterface.BUTTON_NEGATIVE,
context.getString(android.R.string.cancel), this);
setButton(DialogInterface.BUTTON_POSITIVE,
context.getString(android.R.string.ok), this);
SystemUIDialog.setWindowOnTop(this);
}
@Override
public void onClick(DialogInterface dialog, int which) {
int penalty = which == BUTTON_NEGATIVE ? FalsingManager.NO_PENALTY
: FalsingManager.MODERATE_PENALTY;
if (mFalsingManager.isFalseTap(penalty)) {
return;
}
if (which == BUTTON_NEGATIVE) {
cancel();
} else {
dismiss();
if (ActivityManager.isUserAMonkey()) {
return;
}
Intent intent = CreateUserActivity.createIntentForStart(getContext());
// There are some differences between ActivityStarter and ActivityTaskManager in
// terms of how they start an activity. ActivityStarter hides the notification bar
// before starting the activity to make sure nothing is in front of the new
// activity. ActivityStarter also tries to unlock the device if it's locked.
// When locked with PIN/pattern/password then it shows the prompt, if there are no
// security steps then it dismisses the keyguard and then starts the activity.
// ActivityTaskManager doesn't hide the notification bar or unlocks the device, but
// it can start an activity on top of the locked screen.
if (!mKeyguardStateController.isUnlocked()
&& !mKeyguardStateController.canDismissLockScreen()) {
// Device is locked and can't be unlocked without a PIN/pattern/password so we
// need to use ActivityTaskManager to start the activity on top of the locked
// screen.
try {
mActivityTaskManager.startActivity(null,
mContext.getBasePackageName(), mContext.getAttributionTag(), intent,
intent.resolveTypeIfNeeded(mContext.getContentResolver()), null,
null, 0, 0, null, null);
} catch (RemoteException e) {
e.printStackTrace();
Log.e(TAG, "Couldn't start create user activity", e);
}
} else {
mActivityStarter.startActivity(intent, true);
}
}
}
}
}