aboutsummaryrefslogtreecommitdiffstats
path: root/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/QrCodeCaptureActivity.java
blob: bf024cb5baaa8f37d0d08fdc1c8da629a4ec6184 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
/*
 * Copyright (C) 2015 Dominik Schürmann <dominik@dominikschuermann.de>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.sufficientlysecure.keychain.ui;

import android.Manifest;
import android.app.Activity;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentActivity;
import android.support.v4.content.ContextCompat;
import android.view.KeyEvent;

import com.journeyapps.barcodescanner.CaptureManager;
import com.journeyapps.barcodescanner.CompoundBarcodeView;

import org.sufficientlysecure.keychain.R;

public class QrCodeCaptureActivity extends FragmentActivity {
    private CaptureManager capture;
    private CompoundBarcodeView barcodeScannerView;

    public static final int MY_PERMISSIONS_REQUEST_CAMERA = 42;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.qr_code_capture_activity);

        barcodeScannerView = (CompoundBarcodeView) findViewById(R.id.zxing_barcode_scanner);
        barcodeScannerView.setStatusText(getString(R.string.import_qr_code_text));

        if (savedInstanceState != null) {
            init(barcodeScannerView, getIntent(), savedInstanceState);
        }

        // check Android 6 permission
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA)
                == PackageManager.PERMISSION_GRANTED) {
            init(barcodeScannerView, getIntent(), null);
        } else {

//            // Should we show an explanation?
//            if (ActivityCompat.shouldShowRequestPermissionRationale(this,
//                    Manifest.permission.CAMERA)) {
//
//                // Show an explanation to the user *asynchronously* -- don't block
//                // this thread waiting for the user's response! After the user
//                // sees the explanation, try again to request the permission.
//
//            } else {

            ActivityCompat.requestPermissions(this,
                    new String[]{Manifest.permission.CAMERA},
                    MY_PERMISSIONS_REQUEST_CAMERA);

//            }
        }
    }

    private void init(CompoundBarcodeView barcodeScannerView, Intent intent, Bundle savedInstanceState) {
        capture = new CaptureManager(this, barcodeScannerView);
        capture.initializeFromIntent(intent, savedInstanceState);
        capture.decode();
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String permissions[],
                                           @NonNull int[] grantResults) {
        switch (requestCode) {
            case MY_PERMISSIONS_REQUEST_CAMERA: {
                if (grantResults.length > 0
                        && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    // permission was granted
                    init(barcodeScannerView, getIntent(), null);
                } else {
                    setResult(Activity.RESULT_CANCELED);
                    finish();
                }
            }
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        if (capture != null) {
            capture.onResume();
        }
    }

    @Override
    protected void onPause() {
        super.onPause();
        if (capture != null) {
            capture.onPause();
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (capture != null) {
            capture.onDestroy();
        }
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        if (capture != null) {
            capture.onSaveInstanceState(outState);
        }
    }

    @Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {
        return barcodeScannerView.onKeyDown(keyCode, event) || super.onKeyDown(keyCode, event);
    }
}