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Make use of config for auto-created guest users

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If frameworks config config_guestUserAutoCreated=true, then Settings
will:

 - Create a new guest user any time the current guest user is removed

 - Show "Guest" instead of "Add guest"

 - Show "Reset guest" instead of "Remove guest"

Bug: 188542158
Test: With config_guestUserAutoCreated=true, delete current guest user
      using adb (`adb shell cmd user list -v --all` to find the user
      ids, then remove each guest user with `adb shell pm remove-user
      <id>`), then as owner, open multi-users settings page. Check that
      there is a item for "Guest" instead of "Add guest". Select
      "Guest", then confirm there is an item for "Reset guest" (it
      should be disabled). Select "Switch to guest", then switch back to
      owner. Open the multi-users settings page again. Check that "Reset
      guest" is now enabled. Tap "Reset guest", and press confirmation
      button, named "Reset". You should be take back to the main
      multi-user settings page and still see "Guest". Wait a few
      seconds, then use adb to confirm there is a guest user present.
Test: With config_guestUserAutoCreated=true, switch to guest user, open
      multi-users settings page, check that there is an option to "Reset
      guest". Select "Reset guest", and press confirmation button, named
      "Reset". Phone should switch back to last active user, and QS tile
      should now show "Guest" instead of "Add guest". Run `adb shell cmd
      user list -v --all` to confirm guest has a new user id.
Test: With config_guestUserAutoCreated=false, confirm that "Add guest"
      and "Remove guest" features remain unchanged
Change-Id: I7d5b81bd2e5c6b999ae18cd6b1280ae0496db94b
This commit is contained in:
Peter Kalauskas
2021-06-15 17:11:24 -07:00
parent dda37a3500
commit 8d37a2bb85
3 changed files with 162 additions and 9 deletions
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103
src/com/android/settings/users/UserSettings.java
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@@ -87,6 +87,9 @@ import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* Screen that manages the list of users on the device.
@@ -128,6 +131,7 @@ public class UserSettings extends SettingsPreferenceFragment
private static final int DIALOG_USER_PROFILE_EDITOR = 9;
private static final int DIALOG_USER_PROFILE_EDITOR_ADD_USER = 10;
private static final int DIALOG_USER_PROFILE_EDITOR_ADD_RESTRICTED_PROFILE = 11;
private static final int DIALOG_CONFIRM_RESET_GUEST = 12;
private static final int MESSAGE_UPDATE_LIST = 1;
private static final int MESSAGE_USER_CREATED = 2;
@@ -136,6 +140,9 @@ public class UserSettings extends SettingsPreferenceFragment
private static final int USER_TYPE_RESTRICTED_PROFILE = 2;
private static final int REQUEST_CHOOSE_LOCK = 10;
private static final int REQUEST_EDIT_GUEST = 11;
static final int RESULT_GUEST_REMOVED = 100;
private static final String KEY_ADD_USER_LONG_MESSAGE_DISPLAYED =
"key_add_user_long_message_displayed";
@@ -160,6 +167,7 @@ public class UserSettings extends SettingsPreferenceFragment
SparseArray<Bitmap> mUserIcons = new SparseArray<>();
private int mRemovingUserId = -1;
private boolean mAddingUser;
private boolean mGuestUserAutoCreated;
private String mAddingUserName;
private UserCapabilities mUserCaps;
private boolean mShouldUpdateUserList = true;
@@ -173,6 +181,8 @@ public class UserSettings extends SettingsPreferenceFragment
private AddUserWhenLockedPreferenceController mAddUserWhenLockedPreferenceController;
private MultiUserTopIntroPreferenceController mMultiUserTopIntroPreferenceController;
private UserCreatingDialog mUserCreatingDialog;
private final AtomicBoolean mGuestCreationScheduled = new AtomicBoolean();
private final ExecutorService mExecutor = Executors.newSingleThreadExecutor();
private CharSequence mPendingUserName;
private Drawable mPendingUserIcon;
@@ -240,6 +250,9 @@ public class UserSettings extends SettingsPreferenceFragment
return;
}
mGuestUserAutoCreated = getPrefContext().getResources().getBoolean(
com.android.internal.R.bool.config_guestUserAutoCreated);
mAddUserWhenLockedPreferenceController = new AddUserWhenLockedPreferenceController(
activity, KEY_ADD_USER_WHEN_LOCKED);
@@ -343,7 +356,10 @@ public class UserSettings extends SettingsPreferenceFragment
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
int pos = 0;
if (!mUserCaps.mIsAdmin && canSwitchUserNow()) {
// TODO(b/191509236): The menu item does not need to be accessible for guest users,
// regardless of mGuestUserAutoCreated
if (!mUserCaps.mIsAdmin && canSwitchUserNow() && !(isCurrentUserGuest()
&& mGuestUserAutoCreated)) {
String nickname = mUserManager.getUserName();
MenuItem removeThisUser = menu.add(0, MENU_REMOVE_USER, pos++,
getResources().getString(R.string.user_remove_user_menu, nickname));
@@ -387,7 +403,9 @@ public class UserSettings extends SettingsPreferenceFragment
if (isCurrentUserGuest()) {
// No need to load profile information
mMePreference.setIcon(getEncircledDefaultIcon());
mMePreference.setTitle(R.string.user_exit_guest_title);
mMePreference.setTitle(
mGuestUserAutoCreated ? com.android.settingslib.R.string.guest_reset_guest
: R.string.user_exit_guest_title);
mMePreference.setSelectable(true);
// removing a guest will result in switching back to the admin user
mMePreference.setEnabled(canSwitchUserNow());
@@ -445,6 +463,9 @@ public class UserSettings extends SettingsPreferenceFragment
if (resultCode != Activity.RESULT_CANCELED && hasLockscreenSecurity()) {
addUserNow(USER_TYPE_RESTRICTED_PROFILE);
}
} else if (mGuestUserAutoCreated && requestCode == REQUEST_EDIT_GUEST
&& resultCode == RESULT_GUEST_REMOVED) {
scheduleGuestCreation();
} else {
mEditUserInfoController.onActivityResult(requestCode, resultCode, data);
}
@@ -508,12 +529,15 @@ public class UserSettings extends SettingsPreferenceFragment
extras.putBoolean(AppRestrictionsFragment.EXTRA_NEW_USER, newUser);
final Context context = getContext();
new SubSettingLauncher(context)
SubSettingLauncher launcher = new SubSettingLauncher(context)
.setDestination(UserDetailsSettings.class.getName())
.setArguments(extras)
.setTitleText(getUserName(context, userInfo))
.setSourceMetricsCategory(getMetricsCategory())
.launch();
.setSourceMetricsCategory(getMetricsCategory());
if (mGuestUserAutoCreated && userInfo.isGuest()) {
launcher.setResultListener(this, REQUEST_EDIT_GUEST);
}
launcher.launch();
}
@Override
@@ -651,6 +675,10 @@ public class UserSettings extends SettingsPreferenceFragment
}
return buildAddUserDialog(USER_TYPE_RESTRICTED_PROFILE);
}
case DIALOG_CONFIRM_RESET_GUEST: {
return UserDialogs.createResetGuestDialog(getActivity(),
(dialog, which) -> resetGuest());
}
default:
return null;
}
@@ -727,6 +755,7 @@ public class UserSettings extends SettingsPreferenceFragment
case DIALOG_NEED_LOCKSCREEN:
return SettingsEnums.DIALOG_USER_NEED_LOCKSCREEN;
case DIALOG_CONFIRM_EXIT_GUEST:
case DIALOG_CONFIRM_RESET_GUEST:
return SettingsEnums.DIALOG_USER_CONFIRM_EXIT_GUEST;
case DIALOG_USER_PROFILE_EDITOR:
case DIALOG_USER_PROFILE_EDITOR_ADD_USER:
@@ -840,6 +869,55 @@ public class UserSettings extends SettingsPreferenceFragment
removeThisUser();
}
/**
* Erase the current user (assuming it is a guest user), and create a new one in the background
*/
@VisibleForTesting
void resetGuest() {
// Just to be safe
if (!isCurrentUserGuest()) {
return;
}
int guestUserId = UserHandle.myUserId();
// Using markGuestForDeletion allows us to create a new guest before this one is
// fully removed. This could happen if someone calls scheduleGuestCreation()
// immediately after calling this method.
boolean marked = mUserManager.markGuestForDeletion(guestUserId);
if (!marked) {
Log.w(TAG, "Couldn't mark the guest for deletion for user " + guestUserId);
return;
}
exitGuest();
scheduleGuestCreation();
}
/**
* Create a guest user in the background
*/
@VisibleForTesting
void scheduleGuestCreation() {
// TODO(b/191067027): Move guest recreation to system_server
if (mGuestCreationScheduled.compareAndSet(/* expect= */ false, /* update= */ true)) {
// Once mGuestCreationScheduled=true, mAddGuest needs to be updated so that it shows
// "Resetting guest..."
mHandler.sendEmptyMessage(MESSAGE_UPDATE_LIST);
mExecutor.execute(() -> {
UserInfo guest = mUserManager.createGuest(
getContext(), getString(com.android.settingslib.R.string.user_guest));
mGuestCreationScheduled.set(false);
if (guest == null) {
Log.e(TAG, "Unable to automatically recreate guest user");
}
// The list needs to be updated whether or not guest creation worked. If guest
// creation failed, the list needs to update so that "Add guest" is displayed.
// Otherwise, the UX could be stuck in a state where there is no way to switch to
// the guest user (e.g. Guest would not be selectable, and it would be stuck
// saying "Resetting guest...")
mHandler.sendEmptyMessage(MESSAGE_UPDATE_LIST);
});
}
}
@VisibleForTesting
void updateUserList() {
final Context context = getActivity();
@@ -988,8 +1066,15 @@ public class UserSettings extends SettingsPreferenceFragment
&& mUserCaps.mUserSwitcherEnabled) {
mAddGuest.setVisible(true);
mAddGuest.setIcon(getEncircledDefaultIcon());
mAddGuest.setEnabled(canSwitchUserNow());
mAddGuest.setSelectable(true);
if (mGuestUserAutoCreated && mGuestCreationScheduled.get()) {
mAddGuest.setTitle(com.android.settingslib.R.string.user_guest);
mAddGuest.setSummary(R.string.guest_resetting);
mAddGuest.setEnabled(false);
} else {
mAddGuest.setTitle(com.android.settingslib.R.string.guest_new_guest);
mAddGuest.setEnabled(canSwitchUserNow());
}
} else {
mAddGuest.setVisible(false);
}
@@ -1077,7 +1162,11 @@ public class UserSettings extends SettingsPreferenceFragment
public boolean onPreferenceClick(Preference pref) {
if (pref == mMePreference) {
if (isCurrentUserGuest()) {
showDialog(DIALOG_CONFIRM_EXIT_GUEST);
if (mGuestUserAutoCreated) {
showDialog(DIALOG_CONFIRM_RESET_GUEST);
} else {
showDialog(DIALOG_CONFIRM_EXIT_GUEST);
}
} else {
showDialog(DIALOG_USER_PROFILE_EDITOR);
}