| /* |
| * Copyright (C) 2018 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.settings.biometrics.face; |
| |
| import static android.provider.Settings.Secure.FACE_UNLOCK_APP_ENABLED; |
| |
| import android.content.Context; |
| import android.hardware.face.FaceManager; |
| import android.provider.Settings; |
| |
| import com.android.settings.Utils; |
| |
| import androidx.preference.Preference; |
| |
| /** |
| * Preference controller for Face settings page controlling the ability to use |
| * Face authentication in apps (through BiometricPrompt). |
| */ |
| public class FaceSettingsAppPreferenceController extends FaceSettingsPreferenceController { |
| |
| static final String KEY = "security_settings_face_app"; |
| |
| private static final int ON = 1; |
| private static final int OFF = 0; |
| private static final int DEFAULT = ON; // face unlock is enabled for BiometricPrompt by default |
| |
| private FaceManager mFaceManager; |
| |
| public FaceSettingsAppPreferenceController(Context context, String preferenceKey) { |
| super(context, preferenceKey); |
| mFaceManager = Utils.getFaceManagerOrNull(context); |
| } |
| |
| public FaceSettingsAppPreferenceController(Context context) { |
| this(context, KEY); |
| } |
| |
| @Override |
| public boolean isChecked() { |
| if (!FaceSettings.isAvailable(mContext)) { |
| return false; |
| } |
| return Settings.Secure.getIntForUser( |
| mContext.getContentResolver(), FACE_UNLOCK_APP_ENABLED, DEFAULT, getUserId()) == ON; |
| } |
| |
| @Override |
| public boolean setChecked(boolean isChecked) { |
| return Settings.Secure.putIntForUser(mContext.getContentResolver(), FACE_UNLOCK_APP_ENABLED, |
| isChecked ? ON : OFF, getUserId()); |
| } |
| |
| @Override |
| public void updateState(Preference preference) { |
| super.updateState(preference); |
| if (!FaceSettings.isAvailable(mContext)) { |
| preference.setEnabled(false); |
| } else if (!mFaceManager.hasEnrolledTemplates(getUserId())) { |
| preference.setEnabled(false); |
| } else { |
| preference.setEnabled(true); |
| } |
| } |
| |
| @Override |
| public int getAvailabilityStatus() { |
| return AVAILABLE; |
| } |
| } |