1 /* 2 * Copyright (C) 2018 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.hardware.face.FaceManager; 21 22 import androidx.annotation.Nullable; 23 import androidx.lifecycle.Lifecycle; 24 import androidx.lifecycle.LifecycleObserver; 25 import androidx.lifecycle.OnLifecycleEvent; 26 import androidx.preference.Preference; 27 import androidx.preference.PreferenceScreen; 28 29 import com.android.internal.annotations.VisibleForTesting; 30 import com.android.settings.Utils; 31 import com.android.settings.biometrics.BiometricStatusPreferenceController; 32 import com.android.settingslib.RestrictedLockUtils; 33 import com.android.settingslib.RestrictedPreference; 34 35 public class FaceStatusPreferenceController extends BiometricStatusPreferenceController 36 implements LifecycleObserver { 37 38 public static final String KEY_FACE_SETTINGS = "face_settings"; 39 40 protected final FaceManager mFaceManager; 41 42 @VisibleForTesting 43 RestrictedPreference mPreference; 44 private PreferenceScreen mPreferenceScreen; 45 private final FaceStatusUtils mFaceStatusUtils; 46 FaceStatusPreferenceController(Context context)47 public FaceStatusPreferenceController(Context context) { 48 this(context, KEY_FACE_SETTINGS, null /* lifecycle */); 49 } 50 FaceStatusPreferenceController(Context context, String key)51 public FaceStatusPreferenceController(Context context, String key) { 52 this(context, key, null /* lifecycle */); 53 } 54 FaceStatusPreferenceController(Context context, Lifecycle lifecycle)55 public FaceStatusPreferenceController(Context context, Lifecycle lifecycle) { 56 this(context, KEY_FACE_SETTINGS, lifecycle); 57 } 58 FaceStatusPreferenceController(Context context, String key, Lifecycle lifecycle)59 public FaceStatusPreferenceController(Context context, String key, Lifecycle lifecycle) { 60 super(context, key); 61 mFaceManager = Utils.getFaceManagerOrNull(context); 62 mFaceStatusUtils = new FaceStatusUtils(context, mFaceManager, getUserId()); 63 64 if (lifecycle != null) { 65 lifecycle.addObserver(this); 66 } 67 } 68 69 @OnLifecycleEvent(Lifecycle.Event.ON_RESUME) onResume()70 public void onResume() { 71 updateStateInternal(); 72 if (mPreferenceScreen != null) { 73 displayPreference(mPreferenceScreen); 74 } 75 } 76 77 @Override displayPreference(PreferenceScreen screen)78 public void displayPreference(PreferenceScreen screen) { 79 super.displayPreference(screen); 80 mPreferenceScreen = screen; 81 mPreference = screen.findPreference(mPreferenceKey); 82 } 83 84 @Override isDeviceSupported()85 protected boolean isDeviceSupported() { 86 return mFaceStatusUtils.isAvailable(); 87 } 88 89 @Override updateState(Preference preference)90 public void updateState(Preference preference) { 91 super.updateState(preference); 92 updateStateInternal(); 93 } 94 updateStateInternal()95 private void updateStateInternal() { 96 updateStateInternal(mFaceStatusUtils.getDisablingAdmin()); 97 } 98 99 @VisibleForTesting updateStateInternal(@ullable RestrictedLockUtils.EnforcedAdmin enforcedAdmin)100 void updateStateInternal(@Nullable RestrictedLockUtils.EnforcedAdmin enforcedAdmin) { 101 if (mPreference != null) { 102 mPreference.setDisabledByAdmin(enforcedAdmin); 103 } 104 } 105 106 @Override getSummaryText()107 protected String getSummaryText() { 108 return mFaceStatusUtils.getSummary(); 109 } 110 111 @Override getSettingsClassName()112 protected String getSettingsClassName() { 113 return mFaceStatusUtils.getSettingsClassName(); 114 } 115 setPreferenceScreen(PreferenceScreen preferenceScreen)116 public void setPreferenceScreen(PreferenceScreen preferenceScreen) { 117 mPreferenceScreen = preferenceScreen; 118 } 119 } 120