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      1 /*
      2  * Copyright (C) 2015 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.car.systemupdater;
     17 
     18 import static com.android.car.systemupdater.UpdateLayoutFragment.EXTRA_RESUME_UPDATE;
     19 
     20 import android.Manifest;
     21 import android.content.pm.PackageManager;
     22 import android.os.Bundle;
     23 import android.view.MenuItem;
     24 
     25 import androidx.appcompat.app.AppCompatActivity;
     26 import androidx.appcompat.widget.Toolbar;
     27 import androidx.core.app.ActivityCompat;
     28 import androidx.core.content.ContextCompat;
     29 
     30 import java.io.File;
     31 
     32 /**
     33  * Apply a system update using an ota package on internal or external storage.
     34  */
     35 public class SystemUpdaterActivity extends AppCompatActivity
     36         implements DeviceListFragment.SystemUpdater {
     37 
     38     private static final String FRAGMENT_TAG = "FRAGMENT_TAG";
     39     private static final int STORAGE_PERMISSIONS_REQUEST_CODE = 0;
     40     private static final String[] REQUIRED_STORAGE_PERMISSIONS = new String[]{
     41             Manifest.permission.READ_EXTERNAL_STORAGE,
     42             Manifest.permission.WRITE_EXTERNAL_STORAGE
     43     };
     44 
     45     @Override
     46     protected void onCreate(Bundle savedInstanceState) {
     47         super.onCreate(savedInstanceState);
     48 
     49         if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE)
     50                 != PackageManager.PERMISSION_GRANTED) {
     51             ActivityCompat.requestPermissions(this, REQUIRED_STORAGE_PERMISSIONS,
     52                     STORAGE_PERMISSIONS_REQUEST_CODE);
     53         }
     54 
     55         setContentView(R.layout.activity_main);
     56         Toolbar toolbar = findViewById(R.id.toolbar);
     57         setSupportActionBar(toolbar);
     58 
     59         if (savedInstanceState == null) {
     60             Bundle intentExtras = getIntent().getExtras();
     61             if (intentExtras != null && intentExtras.getBoolean(EXTRA_RESUME_UPDATE)) {
     62                 UpdateLayoutFragment fragment = UpdateLayoutFragment.newResumedInstance();
     63                 getSupportFragmentManager().beginTransaction()
     64                         .replace(R.id.device_container, fragment, FRAGMENT_TAG)
     65                         .commitNow();
     66             } else {
     67                 DeviceListFragment fragment = new DeviceListFragment();
     68                 getSupportFragmentManager().beginTransaction()
     69                         .replace(R.id.device_container, fragment, FRAGMENT_TAG)
     70                         .commitNow();
     71             }
     72         }
     73     }
     74 
     75     @Override
     76     public boolean onOptionsItemSelected(MenuItem item) {
     77         if (item.getItemId() == android.R.id.home) {
     78             UpFragment upFragment =
     79                     (UpFragment) getSupportFragmentManager().findFragmentByTag(FRAGMENT_TAG);
     80             if (!upFragment.goUp()) {
     81                 onBackPressed();
     82             }
     83             return true;
     84         }
     85         return super.onOptionsItemSelected(item);
     86     }
     87 
     88     @Override
     89     public void onRequestPermissionsResult(int requestCode, String permissions[],
     90             int[] grantResults) {
     91         super.onRequestPermissionsResult(requestCode, permissions, grantResults);
     92         if (STORAGE_PERMISSIONS_REQUEST_CODE == requestCode) {
     93             if (grantResults.length == 0) {
     94                 finish();
     95             }
     96             for (int grantResult : grantResults) {
     97                 if (grantResult != PackageManager.PERMISSION_GRANTED) {
     98                     finish();
     99                 }
    100             }
    101         }
    102     }
    103 
    104     @Override
    105     public void applyUpdate(File file) {
    106         UpdateLayoutFragment fragment = UpdateLayoutFragment.getInstance(file);
    107         getSupportFragmentManager().beginTransaction()
    108                 .replace(R.id.device_container, fragment, FRAGMENT_TAG)
    109                 .addToBackStack(null)
    110                 .commit();
    111     }
    112 }
    113