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.security.screenlock; 18 19 import static android.app.admin.DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED; 20 21 import android.content.Context; 22 import android.os.UserHandle; 23 24 import androidx.preference.Preference; 25 import androidx.preference.PreferenceScreen; 26 27 import com.android.internal.widget.LockPatternUtils; 28 import com.android.settings.core.BasePreferenceController; 29 import com.android.settings.notification.LockScreenNotificationPreferenceController; 30 import com.android.settings.overlay.FeatureFactory; 31 import com.android.settingslib.core.lifecycle.LifecycleObserver; 32 import com.android.settingslib.core.lifecycle.events.OnResume; 33 34 public class LockScreenPreferenceController extends BasePreferenceController implements 35 LifecycleObserver, OnResume { 36 37 private static final int MY_USER_ID = UserHandle.myUserId(); 38 private final LockPatternUtils mLockPatternUtils; 39 private Preference mPreference; 40 LockScreenPreferenceController(Context context, String key)41 public LockScreenPreferenceController(Context context, String key) { 42 super(context, key); 43 mLockPatternUtils = FeatureFactory.getFactory(context) 44 .getSecurityFeatureProvider().getLockPatternUtils(context); 45 } 46 47 @Override displayPreference(PreferenceScreen screen)48 public void displayPreference(PreferenceScreen screen) { 49 super.displayPreference(screen); 50 mPreference = screen.findPreference(getPreferenceKey()); 51 } 52 53 @Override getAvailabilityStatus()54 public int getAvailabilityStatus() { 55 if (!mLockPatternUtils.isSecure(MY_USER_ID)) { 56 return mLockPatternUtils.isLockScreenDisabled(MY_USER_ID) 57 ? DISABLED_FOR_USER : AVAILABLE_UNSEARCHABLE; 58 } else { 59 return mLockPatternUtils.getKeyguardStoredPasswordQuality(MY_USER_ID) 60 == PASSWORD_QUALITY_UNSPECIFIED 61 ? DISABLED_FOR_USER : AVAILABLE_UNSEARCHABLE; 62 } 63 } 64 65 @Override updateState(Preference preference)66 public void updateState(Preference preference) { 67 preference.setSummary( 68 LockScreenNotificationPreferenceController.getSummaryResource(mContext)); 69 } 70 71 @Override onResume()72 public void onResume() { 73 mPreference.setVisible(isAvailable()); 74 } 75 } 76