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; 18 19 import static com.android.settings.Utils.SETTINGS_PACKAGE_NAME; 20 import static com.android.settings.biometrics.BiometricEnrollBase.EXTRA_FROM_SETTINGS_SUMMARY; 21 22 import android.content.Context; 23 import android.content.Intent; 24 import android.os.UserHandle; 25 import android.os.UserManager; 26 27 import androidx.preference.Preference; 28 29 import com.android.internal.widget.LockPatternUtils; 30 import com.android.settings.Utils; 31 import com.android.settings.core.BasePreferenceController; 32 import com.android.settings.overlay.FeatureFactory; 33 34 public abstract class BiometricStatusPreferenceController extends BasePreferenceController { 35 36 protected final UserManager mUm; 37 protected final LockPatternUtils mLockPatternUtils; 38 39 private final int mUserId = UserHandle.myUserId(); 40 protected final int mProfileChallengeUserId; 41 42 /** 43 * @return true if the manager is not null and the hardware is detected. 44 */ isDeviceSupported()45 protected abstract boolean isDeviceSupported(); 46 47 /** 48 * @return true if the user has enrolled biometrics of the subclassed type. 49 */ hasEnrolledBiometrics()50 protected abstract boolean hasEnrolledBiometrics(); 51 52 /** 53 * @return the summary text if biometrics are enrolled. 54 */ getSummaryTextEnrolled()55 protected abstract String getSummaryTextEnrolled(); 56 57 /** 58 * @return the summary text if no biometrics are enrolled. 59 */ getSummaryTextNoneEnrolled()60 protected abstract String getSummaryTextNoneEnrolled(); 61 62 /** 63 * @return the class name for the settings page. 64 */ getSettingsClassName()65 protected abstract String getSettingsClassName(); 66 67 /** 68 * @return the class name for entry to enrollment. 69 */ getEnrollClassName()70 protected abstract String getEnrollClassName(); 71 BiometricStatusPreferenceController(Context context, String key)72 public BiometricStatusPreferenceController(Context context, String key) { 73 super(context, key); 74 mUm = (UserManager) context.getSystemService(Context.USER_SERVICE); 75 mLockPatternUtils = FeatureFactory.getFactory(context) 76 .getSecurityFeatureProvider() 77 .getLockPatternUtils(context); 78 mProfileChallengeUserId = Utils.getManagedProfileId(mUm, mUserId); 79 } 80 81 @Override getAvailabilityStatus()82 public int getAvailabilityStatus() { 83 if (!isDeviceSupported()) { 84 return UNSUPPORTED_ON_DEVICE; 85 } 86 if (isUserSupported()) { 87 return AVAILABLE; 88 } else { 89 return DISABLED_FOR_USER; 90 } 91 } 92 93 @Override updateState(Preference preference)94 public void updateState(Preference preference) { 95 if (!isAvailable()) { 96 if (preference != null) { 97 preference.setVisible(false); 98 } 99 return; 100 } else { 101 preference.setVisible(true); 102 } 103 final int userId = getUserId(); 104 final String clazz; 105 if (hasEnrolledBiometrics()) { 106 preference.setSummary(getSummaryTextEnrolled()); 107 clazz = getSettingsClassName(); 108 } else { 109 preference.setSummary(getSummaryTextNoneEnrolled()); 110 clazz = getEnrollClassName(); 111 } 112 preference.setOnPreferenceClickListener(target -> { 113 final Context context = target.getContext(); 114 final UserManager userManager = UserManager.get(context); 115 if (Utils.startQuietModeDialogIfNecessary(context, userManager, 116 userId)) { 117 return false; 118 } 119 Intent intent = new Intent(); 120 intent.setClassName(SETTINGS_PACKAGE_NAME, clazz); 121 intent.putExtra(Intent.EXTRA_USER_ID, userId); 122 intent.putExtra(EXTRA_FROM_SETTINGS_SUMMARY, true); 123 context.startActivity(intent); 124 return true; 125 }); 126 } 127 getUserId()128 protected int getUserId() { 129 return mUserId; 130 } 131 isUserSupported()132 protected boolean isUserSupported() { 133 return true; 134 } 135 } 136