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.ComponentName;
  import android.content.Context;
  import android.content.pm.PackageInstaller;
  import android.support.annotation.NonNull;
  
  import java.util.HashMap;
  import java.util.List;
  
  public abstract class PackageInstallerCompat {
  
      public static final int STATUS_INSTALLED = 0;
      public static final int STATUS_INSTALLING = 1;
      public static final int STATUS_FAILED = 2;
  
      private static final Object sInstanceLock = new Object();
      private static PackageInstallerCompat sInstance;
  
      public static PackageInstallerCompat getInstance(Context context) {
          synchronized (sInstanceLock) {
              if (sInstance == null) {
                  sInstance = new PackageInstallerCompatVL(context);
              }
              return sInstance;
          }
      }
  
      /**
       * @return a map of active installs to their progress
       */
      public abstract HashMap<String, Integer> updateAndGetActiveSessionCache();
  
      public abstract void onStop();
  
      public static final class PackageInstallInfo {
          public final ComponentName componentName;
          public final String packageName;
          public final int state;
          public final int progress;
  
          private PackageInstallInfo(@NonNull PackageInstaller.SessionInfo info) {
              this.state = STATUS_INSTALLING;
              this.packageName = info.getAppPackageName();
              this.componentName = new ComponentName(packageName, "");
              this.progress = (int) (info.getProgress() * 100f);
          }
  
          public PackageInstallInfo(String packageName, int state, int progress) {
              this.state = state;
              this.packageName = packageName;
              this.componentName = new ComponentName(packageName, "");
              this.progress = progress;
          }
  
          public static PackageInstallInfo fromInstallingState(PackageInstaller.SessionInfo info) {
              return new PackageInstallInfo(info);
          }
  
          public static PackageInstallInfo fromState(int state, String packageName) {
              return new PackageInstallInfo(packageName, state, 0 /* progress */);
          }
  
      }
  
      public abstract List<PackageInstaller.SessionInfo> getAllVerifiedSessions();
  }
  