1 /* 2 * Copyright (C) 2017 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 android.app.admin.DevicePolicyManager; 20 import android.content.Context; 21 22 import androidx.preference.Preference; 23 import androidx.preference.TwoStatePreference; 24 25 import com.android.internal.widget.LockPatternUtils; 26 import com.android.settings.core.PreferenceControllerMixin; 27 import com.android.settingslib.core.AbstractPreferenceController; 28 29 public class PatternVisiblePreferenceController extends AbstractPreferenceController 30 implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener { 31 32 private static final String PREF_KEY = "visiblepattern"; 33 34 private final int mUserId; 35 private final LockPatternUtils mLockPatternUtils; 36 PatternVisiblePreferenceController(Context context, int userId, LockPatternUtils lockPatternUtils)37 public PatternVisiblePreferenceController(Context context, int userId, 38 LockPatternUtils lockPatternUtils) { 39 super(context); 40 mUserId = userId; 41 mLockPatternUtils = lockPatternUtils; 42 } 43 44 @Override isAvailable()45 public boolean isAvailable() { 46 return isPatternLock(); 47 } 48 49 @Override getPreferenceKey()50 public String getPreferenceKey() { 51 return PREF_KEY; 52 } 53 54 @Override updateState(Preference preference)55 public void updateState(Preference preference) { 56 ((TwoStatePreference) preference).setChecked( 57 mLockPatternUtils.isVisiblePatternEnabled(mUserId)); 58 } 59 isPatternLock()60 private boolean isPatternLock() { 61 return mLockPatternUtils.isSecure(mUserId) 62 && mLockPatternUtils.getKeyguardStoredPasswordQuality(mUserId) 63 == DevicePolicyManager.PASSWORD_QUALITY_SOMETHING; 64 } 65 66 @Override onPreferenceChange(Preference preference, Object newValue)67 public boolean onPreferenceChange(Preference preference, Object newValue) { 68 mLockPatternUtils.setVisiblePatternEnabled((Boolean) newValue, mUserId); 69 return true; 70 } 71 } 72