Add ability to scan image for QR code

app/src/main/java/com/beemdevelopment/aegis/ui/MainActivity.java

@@ -7,7 +7,10 @@ import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Context;
 import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.graphics.Rect;
+import android.net.Uri;
 import android.os.Bundle;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -28,10 +31,25 @@ import com.beemdevelopment.aegis.db.DatabaseFileCredentials;
 import com.beemdevelopment.aegis.db.DatabaseManager;
 import com.beemdevelopment.aegis.db.DatabaseManagerException;
 import com.beemdevelopment.aegis.helpers.PermissionHelper;
+import com.beemdevelopment.aegis.otp.GoogleAuthInfo;
+import com.beemdevelopment.aegis.otp.GoogleAuthInfoException;
 import com.beemdevelopment.aegis.ui.views.EntryListView;
 import com.getbase.floatingactionbutton.FloatingActionsMenu;
 import com.google.android.material.bottomsheet.BottomSheetDialog;
+import com.google.zxing.BinaryBitmap;
+import com.google.zxing.ChecksumException;
+import com.google.zxing.FormatException;
+import com.google.zxing.LuminanceSource;
+import com.google.zxing.MultiFormatReader;
+import com.google.zxing.NotFoundException;
+import com.google.zxing.RGBLuminanceSource;
+import com.google.zxing.Reader;
+import com.google.zxing.Result;
+import com.google.zxing.common.HybridBinarizer;
 
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.TreeSet;
@@ -47,6 +65,7 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
     private static final int CODE_DO_INTRO = 4;
     private static final int CODE_DECRYPT = 5;
     private static final int CODE_PREFERENCES = 6;
+    private static final int CODE_SCAN_IMAGE = 7;
 
     // permission request codes
     private static final int CODE_PERM_CAMERA = 0;
@@ -86,6 +105,15 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
             _fabMenu.collapse();
             startEditProfileActivity(CODE_ENTER_ENTRY, null, true);
         });
+        findViewById(R.id.fab_scan_image).setOnClickListener(view -> {
+            _fabMenu.collapse();
+
+            Intent galleryIntent = new Intent(Intent.ACTION_PICK);
+            galleryIntent.setDataAndType(android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI, "image/*");
+
+            Intent chooserIntent = Intent.createChooser(galleryIntent, getString(R.string.select_picture));
+            startActivityForResult(Intent.createChooser(chooserIntent, getString(R.string.select_picture)), CODE_SCAN_IMAGE);
+        });
         findViewById(R.id.fab_scan).setOnClickListener(view -> {
             _fabMenu.collapse();
             startScanActivity();
@@ -145,6 +173,8 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
             case CODE_PREFERENCES:
                 onPreferencesResult(resultCode, data);
                 break;
+            case CODE_SCAN_IMAGE:
+                onScanImageResult(resultCode, data);
         }
     }
 
@@ -225,6 +255,38 @@ public class MainActivity extends AegisActivity implements EntryListView.Listene
         }
     }
 
+    private void onScanImageResult(int resultCode, Intent intent) {
+        if (resultCode == RESULT_OK) {
+            Uri inputFile = (intent.getData());
+            Bitmap bitmap;
+
+            try {
+                BitmapFactory.Options bmOptions = new BitmapFactory.Options();
+
+                try (InputStream inputStream = getContentResolver().openInputStream(inputFile)) {
+                    bitmap = BitmapFactory.decodeStream(inputStream, null, bmOptions);
+                }
+
+                int[] intArray = new int[bitmap.getWidth() * bitmap.getHeight()];
+                bitmap.getPixels(intArray, 0, bitmap.getWidth(), 0, 0, bitmap.getWidth(), bitmap.getHeight());
+
+                LuminanceSource source = new RGBLuminanceSource(bitmap.getWidth(), bitmap.getHeight(), intArray);
+                BinaryBitmap binaryBitmap = new BinaryBitmap(new HybridBinarizer(source));
+
+                Reader reader = new MultiFormatReader();
+                Result result = reader.decode(binaryBitmap);
+
+                GoogleAuthInfo info = GoogleAuthInfo.parseUri(result.getText());
+                DatabaseEntry entry = new DatabaseEntry(info);
+
+                startEditProfileActivity(CODE_ADD_ENTRY, entry, true);
+            } catch (NotFoundException | IOException | ChecksumException | FormatException | GoogleAuthInfoException e) {
+                Toast.makeText(this, getString(R.string.unable_to_read_qrcode), Toast.LENGTH_SHORT).show();
+                e.printStackTrace();
+            }
+        }
+    }
+
     private void updateGroupFilterMenu() {
         SubMenu menu = _menu.findItem(R.id.action_filter).getSubMenu();
         for (int i = menu.size() - 1; i >= 0; i--) {

app/src/main/res/drawable/ic_add_photo_24px.xml

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="#FF000000"
+      android:pathData="M19,7v2.99s-1.99,0.01 -2,0L17,7h-3s0.01,-1.99 0,-2h3L17,2h2v3h3v2h-3zM16,11L16,8h-3L13,5L5,5c-1.1,0 -2,0.9 -2,2v12c0,1.1 0.9,2 2,2h12c1.1,0 2,-0.9 2,-2v-8h-3zM5,19l3,-4 2,3 3,-4 4,5L5,19z"/>
+</vector>

app/src/main/res/layout/activity_main.xml

@@ -38,6 +38,17 @@
             app:fab_colorPressed="@color/background"
             app:fab_icon="@drawable/ic_qrcode_scan"/>
 
+        <com.getbase.floatingactionbutton.FloatingActionButton
+            android:id="@+id/fab_scan_image"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            app:fab_title="@string/scan_image"
+            app:fab_size="mini"
+            app:fab_colorNormal="@color/background"
+            app:fab_colorPressed="@color/background"
+            app:fab_icon="@drawable/ic_add_photo_24px"/>
+
+
         <com.getbase.floatingactionbutton.FloatingActionButton
             android:id="@+id/fab_enter"
             android:layout_width="wrap_content"

app/src/main/res/values/strings.xml

@@ -68,6 +68,7 @@
     <string name="digits">Digits</string>
     <string name="secret">Secret</string>
     <string name="scan">Scan QR code</string>
+    <string name="scan_image">Scan image</string>
     <string name="enter_manually">Enter manually</string>
     <string name="add_fingerprint">Add fingerprint</string>
     <string name="add_password">Add password</string>
@@ -155,4 +156,6 @@
     <string name="normal_viewmode_title">Normal</string>
     <string name="compact_mode_title">Compact</string>
     <string name="small_mode_title">Small</string>
+    <string name="unable_to_read_qrcode">Unable to read and process QR code</string>
+    <string name="select_picture">Select picture</string>
 </resources>