content: /*
   * Copyright (C) 2014 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.android.launcher3.compat;
  
  import android.content.Context;
  import android.os.UserHandle;
  
  import com.android.launcher3.Utilities;
  
  import java.util.List;
  
  public abstract class UserManagerCompat {
      protected UserManagerCompat() {
      }
  
      private static final Object sInstanceLock = new Object();
      private static UserManagerCompat sInstance;
  
      public static UserManagerCompat getInstance(Context context) {
          synchronized (sInstanceLock) {
              if (sInstance == null) {
                  if (Utilities.ATLEAST_P) {
                      sInstance = new UserManagerCompatVP(context.getApplicationContext());
                  } else if (Utilities.ATLEAST_NOUGAT_MR1) {
                      sInstance = new UserManagerCompatVNMr1(context.getApplicationContext());
                  } else if (Utilities.ATLEAST_NOUGAT) {
                      sInstance = new UserManagerCompatVN(context.getApplicationContext());
                  } else if (Utilities.ATLEAST_MARSHMALLOW) {
                      sInstance = new UserManagerCompatVM(context.getApplicationContext());
                  } else {
                      sInstance = new UserManagerCompatVL(context.getApplicationContext());
                  }
              }
              return sInstance;
          }
      }
  
      /**
       * Creates a cache for users.
       */
      public abstract void enableAndResetCache();
  
      public abstract List<UserHandle> getUserProfiles();
      public abstract long getSerialNumberForUser(UserHandle user);
      public abstract UserHandle getUserForSerialNumber(long serialNumber);
      public abstract boolean isQuietModeEnabled(UserHandle user);
      public abstract boolean isUserUnlocked(UserHandle user);
  
      public abstract boolean isDemoUser();
      public abstract boolean requestQuietModeEnabled(boolean enableQuietMode, UserHandle user);
      public abstract boolean isAnyProfileQuietModeEnabled();
  
      public abstract boolean hasWorkProfile();
  }
  