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.settings.applications;
17 
18 import android.app.Activity;
19 import android.content.Intent;
20 import android.content.res.Resources;
21 import android.os.Bundle;
22 import android.view.LayoutInflater;
23 import android.view.View;
24 import android.view.ViewGroup;
25 import android.widget.Button;
26 
27 import com.android.internal.logging.nano.MetricsProto;
28 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
29 import com.android.settings.ChooseLockSettingsHelper;
30 import com.android.settings.R;
31 import com.android.settings.SettingsActivity;
32 import com.android.settings.SettingsPreferenceFragment;
33 
34 /* Class to prompt for conversion of userdata to file based encryption
35  */
36 public class ConvertToFbe extends SettingsPreferenceFragment {
37     static final String TAG = "ConvertToFBE";
38     static final String CONVERT_FBE_EXTRA = "ConvertFBE";
39     private static final int KEYGUARD_REQUEST = 55;
40 
runKeyguardConfirmation(int request)41     private boolean runKeyguardConfirmation(int request) {
42         Resources res = getActivity().getResources();
43         return new ChooseLockSettingsHelper(getActivity(), this)
44             .launchConfirmationActivity(request,
45                                         res.getText(R.string.convert_to_file_encryption));
46     }
47 
48     @Override
onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)49     public View onCreateView(LayoutInflater inflater, ViewGroup container,
50                 Bundle savedInstanceState) {
51         View rootView = inflater.inflate(R.layout.convert_fbe, null);
52 
53         final Button button = (Button) rootView.findViewById(R.id.button_convert_fbe);
54         button.setOnClickListener(new View.OnClickListener() {
55             public void onClick(View v) {
56                 if(!runKeyguardConfirmation(KEYGUARD_REQUEST)) {
57                     convert();
58                 }
59             }
60         });
61 
62         return rootView;
63     }
64 
65     @Override
onActivityResult(int requestCode, int resultCode, Intent data)66     public void onActivityResult(int requestCode, int resultCode, Intent data) {
67         super.onActivityResult(requestCode, resultCode, data);
68 
69         if (requestCode != KEYGUARD_REQUEST) {
70             return;
71         }
72 
73         // If the user entered a valid keyguard credential, start the conversion
74         // process
75         if (resultCode == Activity.RESULT_OK) {
76             convert();
77         }
78     }
79 
convert()80     private void convert() {
81         SettingsActivity sa = (SettingsActivity) getActivity();
82         sa.startPreferencePanel(this, ConfirmConvertToFbe.class.getName(), null,
83                                 R.string.convert_to_file_encryption, null, null, 0);
84     }
85 
86     @Override
getMetricsCategory()87     public int getMetricsCategory() {
88         return MetricsEvent.CONVERT_FBE;
89     }
90 }
91