ConfigActivity: Add import menu item

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

app/src/main/java/com/wireguard/android/ConfigActivity.java

@@ -16,6 +16,7 @@ import com.wireguard.config.Config;
 
 public class ConfigActivity extends BaseConfigActivity {
     private static final String KEY_EDITOR_STATE = "editorState";
+    private static final int REQUEST_IMPORT = 1;
     private static final String TAG_DETAIL = "detail";
     private static final String TAG_EDIT = "edit";
     private static final String TAG_LIST = "list";
@@ -129,6 +130,16 @@ public class ConfigActivity extends BaseConfigActivity {
         }
     }
 
+    @Override
+    public void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
+        if (requestCode == REQUEST_IMPORT) {
+            if (resultCode == RESULT_OK)
+                VpnService.getInstance().importFrom(data.getData());
+        } else {
+            super.onActivityResult(requestCode, resultCode, data);
+        }
+    }
+
     @Override
     public void onBackPressed() {
         super.onBackPressed();
@@ -184,6 +195,12 @@ public class ConfigActivity extends BaseConfigActivity {
                 // Try to make the editing fragment visible.
                 setIsEditing(true);
                 return true;
+            case R.id.menu_action_import:
+                final Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
+                intent.addCategory(Intent.CATEGORY_OPENABLE);
+                intent.setType("*/*");
+                startActivityForResult(intent, REQUEST_IMPORT);
+                return true;
             case R.id.menu_action_save:
                 // This menu item is handled by the editing fragment.
                 return false;

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

@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="24dp"
+        android:height="24dp"
+        android:viewportWidth="24.0"
+        android:viewportHeight="24.0">
+    <path
+        android:pathData="M6,2c-1.1,0 -1.99,0.9 -1.99,2L4,20c0,1.1 0.89,2 1.99,2L18,22c1.1,0 2,-0.9 2,-2L20,8l-6,-6L6,2zM13,9L13,3.5L18.5,9L13,9z"
+        android:fillColor="#FFFFFF"/>
+</vector>

app/src/main/res/menu/config_list.xml

@@ -6,4 +6,10 @@
         android:icon="@drawable/ic_action_add"
         android:showAsAction="always"
         android:title="@string/add" />
+    <item
+        android:id="@+id/menu_action_import"
+        android:alphabeticShortcut="o"
+        android:icon="@drawable/ic_open"
+        android:showAsAction="ifRoom"
+        android:title="@string/import_config" />
 </menu>

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

@@ -42,4 +42,5 @@
     <string name="settings">Settings</string>
     <string name="status">Status</string>
     <string name="toggle">Toggle</string>
+    <string name="import_config">Import</string>
 </resources>