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      1 /*
      2  * Copyright (C) 2014 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.launcher3.compat;
     18 
     19 import android.content.Context;
     20 import android.content.SharedPreferences;
     21 import android.content.pm.PackageManager;
     22 import android.os.UserHandle;
     23 import android.os.UserManager;
     24 import android.util.ArrayMap;
     25 import com.android.launcher3.util.LongArrayMap;
     26 import com.android.launcher3.util.ManagedProfileHeuristic;
     27 import java.util.ArrayList;
     28 import java.util.Collections;
     29 import java.util.List;
     30 
     31 public class UserManagerCompatVL extends UserManagerCompat {
     32     private static final String USER_CREATION_TIME_KEY = "user_creation_time_";
     33 
     34     protected final UserManager mUserManager;
     35     private final PackageManager mPm;
     36     private final Context mContext;
     37 
     38     protected LongArrayMap<UserHandle> mUsers;
     39     // Create a separate reverse map as LongArrayMap.indexOfValue checks if objects are same
     40     // and not {@link Object#equals}
     41     protected ArrayMap<UserHandle, Long> mUserToSerialMap;
     42 
     43     UserManagerCompatVL(Context context) {
     44         mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
     45         mPm = context.getPackageManager();
     46         mContext = context;
     47     }
     48 
     49     @Override
     50     public long getSerialNumberForUser(UserHandle user) {
     51         synchronized (this) {
     52             if (mUserToSerialMap != null) {
     53                 Long serial = mUserToSerialMap.get(user);
     54                 return serial == null ? 0 : serial;
     55             }
     56         }
     57         return mUserManager.getSerialNumberForUser(user);
     58     }
     59 
     60     @Override
     61     public UserHandle getUserForSerialNumber(long serialNumber) {
     62         synchronized (this) {
     63             if (mUsers != null) {
     64                 return mUsers.get(serialNumber);
     65             }
     66         }
     67         return mUserManager.getUserForSerialNumber(serialNumber);
     68     }
     69 
     70     @Override
     71     public boolean isQuietModeEnabled(UserHandle user) {
     72         return false;
     73     }
     74 
     75     @Override
     76     public boolean isUserUnlocked(UserHandle user) {
     77         return true;
     78     }
     79 
     80     @Override
     81     public boolean isDemoUser() {
     82         return false;
     83     }
     84 
     85     @Override
     86     public void enableAndResetCache() {
     87         synchronized (this) {
     88             mUsers = new LongArrayMap<>();
     89             mUserToSerialMap = new ArrayMap<>();
     90             List<UserHandle> users = mUserManager.getUserProfiles();
     91             if (users != null) {
     92                 for (UserHandle user : users) {
     93                     long serial = mUserManager.getSerialNumberForUser(user);
     94                     mUsers.put(serial, user);
     95                     mUserToSerialMap.put(user, serial);
     96                 }
     97             }
     98         }
     99     }
    100 
    101     @Override
    102     public List<UserHandle> getUserProfiles() {
    103         synchronized (this) {
    104             if (mUsers != null) {
    105                 return new ArrayList<>(mUserToSerialMap.keySet());
    106             }
    107         }
    108 
    109         List<UserHandle> users = mUserManager.getUserProfiles();
    110         return users == null ? Collections.<UserHandle>emptyList() : users;
    111     }
    112 
    113     @Override
    114     public CharSequence getBadgedLabelForUser(CharSequence label, UserHandle user) {
    115         if (user == null) {
    116             return label;
    117         }
    118         return mPm.getUserBadgedLabel(label, user);
    119     }
    120 
    121     @Override
    122     public long getUserCreationTime(UserHandle user) {
    123         SharedPreferences prefs = ManagedProfileHeuristic.prefs(mContext);
    124         String key = USER_CREATION_TIME_KEY + getSerialNumberForUser(user);
    125         if (!prefs.contains(key)) {
    126             prefs.edit().putLong(key, System.currentTimeMillis()).apply();
    127         }
    128         return prefs.getLong(key, 0);
    129     }
    130 }
    131 
    132