1 /* 2 * Copyright (C) 2016 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 package com.android.settings.accounts; 17 18 import android.content.Context; 19 import android.provider.Settings.Global; 20 import android.support.v7.preference.Preference; 21 22 import com.android.settings.core.PreferenceController; 23 import com.android.settings.core.lifecycle.LifecycleObserver; 24 import com.android.settings.core.lifecycle.events.OnPause; 25 import com.android.settings.core.lifecycle.events.OnResume; 26 import com.android.settings.users.UserCapabilities; 27 import com.android.settingslib.RestrictedSwitchPreference; 28 29 public class AddUserWhenLockedPreferenceController extends PreferenceController 30 implements Preference.OnPreferenceChangeListener, LifecycleObserver, OnPause, OnResume { 31 32 private static final String KEY_ADD_USER_WHEN_LOCKED = "add_users_when_locked"; 33 34 private RestrictedSwitchPreference mAddUserWhenLocked; 35 private UserCapabilities mUserCaps; 36 private boolean mShouldUpdateUserList; 37 AddUserWhenLockedPreferenceController(Context context)38 public AddUserWhenLockedPreferenceController(Context context) { 39 super(context); 40 mUserCaps = UserCapabilities.create(context); 41 } 42 43 @Override updateState(Preference preference)44 public void updateState(Preference preference) { 45 RestrictedSwitchPreference restrictedSwitchPreference = 46 (RestrictedSwitchPreference) preference; 47 int value = Global.getInt(mContext.getContentResolver(), Global.ADD_USERS_WHEN_LOCKED, 0); 48 restrictedSwitchPreference.setChecked(value == 1); 49 restrictedSwitchPreference.setDisabledByAdmin( 50 mUserCaps.disallowAddUser() ? mUserCaps.getEnforcedAdmin() : null); 51 } 52 53 @Override onPreferenceChange(Preference preference, Object newValue)54 public boolean onPreferenceChange(Preference preference, Object newValue) { 55 Boolean value = (Boolean) newValue; 56 Global.putInt(mContext.getContentResolver(), 57 Global.ADD_USERS_WHEN_LOCKED, value != null && value ? 1 : 0); 58 return true; 59 } 60 61 @Override onPause()62 public void onPause() { 63 mShouldUpdateUserList = true; 64 } 65 66 @Override onResume()67 public void onResume() { 68 if (mShouldUpdateUserList) { 69 mUserCaps.updateAddUserCapabilities(mContext); 70 } 71 } 72 73 @Override isAvailable()74 public boolean isAvailable() { 75 return mUserCaps.isAdmin() && 76 (!mUserCaps.disallowAddUser() || mUserCaps.disallowAddUserSetByAdmin()); 77 } 78 79 @Override getPreferenceKey()80 public String getPreferenceKey() { 81 return KEY_ADD_USER_WHEN_LOCKED; 82 } 83 } 84