1 /* 2 * Copyright (C) 2019 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 17 package com.android.settings.biometrics.face; 18 19 import android.content.Context; 20 import android.content.pm.PackageManager; 21 import android.hardware.face.FaceManager; 22 import android.os.UserHandle; 23 import android.os.UserManager; 24 import android.provider.Settings; 25 26 import androidx.preference.Preference; 27 28 import com.android.internal.annotations.VisibleForTesting; 29 import com.android.settings.Utils; 30 import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin; 31 import com.android.settingslib.RestrictedSwitchPreference; 32 33 public class FaceSettingsLockscreenBypassPreferenceController 34 extends FaceSettingsPreferenceController { 35 36 @VisibleForTesting 37 protected FaceManager mFaceManager; 38 private UserManager mUserManager; 39 FaceSettingsLockscreenBypassPreferenceController(Context context, String preferenceKey)40 public FaceSettingsLockscreenBypassPreferenceController(Context context, String preferenceKey) { 41 super(context, preferenceKey); 42 if (context.getPackageManager().hasSystemFeature(PackageManager.FEATURE_FACE)) { 43 mFaceManager = context.getSystemService(FaceManager.class); 44 } 45 46 mUserManager = context.getSystemService(UserManager.class); 47 } 48 49 @Override isChecked()50 public boolean isChecked() { 51 if (!FaceSettings.isFaceHardwareDetected(mContext)) { 52 return false; 53 } else if (getRestrictingAdmin() != null) { 54 return false; 55 } 56 int defaultValue = mContext.getResources().getBoolean( 57 com.android.internal.R.bool.config_faceAuthDismissesKeyguard) ? 1 : 0; 58 return Settings.Secure.getIntForUser(mContext.getContentResolver(), 59 Settings.Secure.FACE_UNLOCK_DISMISSES_KEYGUARD, defaultValue, getUserHandle()) != 0; 60 } 61 62 @Override setChecked(boolean isChecked)63 public boolean setChecked(boolean isChecked) { 64 Settings.Secure.putIntForUser(mContext.getContentResolver(), 65 Settings.Secure.FACE_UNLOCK_DISMISSES_KEYGUARD, isChecked ? 1 : 0, getUserHandle()); 66 return true; 67 } 68 69 @Override updateState(Preference preference)70 public void updateState(Preference preference) { 71 EnforcedAdmin admin; 72 super.updateState(preference); 73 if (!FaceSettings.isFaceHardwareDetected(mContext)) { 74 preference.setEnabled(false); 75 } else if ((admin = getRestrictingAdmin()) != null) { 76 ((RestrictedSwitchPreference) preference).setDisabledByAdmin(admin); 77 } else if (!mFaceManager.hasEnrolledTemplates(getUserId())) { 78 preference.setEnabled(false); 79 } else { 80 preference.setEnabled(true); 81 } 82 } 83 84 @Override getAvailabilityStatus()85 public int getAvailabilityStatus() { 86 // When the device supports multiple biometrics auth, this preference won't be shown 87 // in face unlock category. 88 if (Utils.isMultipleBiometricsSupported(mContext)) { 89 return UNSUPPORTED_ON_DEVICE; 90 } 91 if (mUserManager.isManagedProfile(getUserId())) { 92 return UNSUPPORTED_ON_DEVICE; 93 } 94 95 if (mFaceManager != null && mFaceManager.isHardwareDetected()) { 96 return mFaceManager.hasEnrolledTemplates(getUserId()) 97 ? AVAILABLE : DISABLED_DEPENDENT_SETTING; 98 } else { 99 return UNSUPPORTED_ON_DEVICE; 100 } 101 } 102 getUserHandle()103 private int getUserHandle() { 104 return UserHandle.of(getUserId()).getIdentifier(); 105 } 106 } 107