opt.: more params of editor page

lib/core/extension/context.dart

@@ -6,4 +6,6 @@ extension ContextX on BuildContext {
   }
 
   bool get canPop => Navigator.of(this).canPop();
+
+  bool get isDark => Theme.of(this).brightness == Brightness.dark;
 }

lib/core/route.dart

@@ -156,8 +156,22 @@ class AppRoute {
     return AppRoute(DockerManagePage(key: key, spi: spi), 'docker');
   }
 
-  static AppRoute editor({Key? key, required String path}) {
-    return AppRoute(EditorPage(key: key, path: path), 'editor');
+  /// - Pop true if the text is changed & [path] is not null
+  /// - Pop text if [path] is null
+  static AppRoute editor({
+    Key? key,
+    String? path,
+    String? text,
+    String? langCode,
+  }) {
+    return AppRoute(
+        EditorPage(
+          key: key,
+          path: path,
+          text: text,
+          langCode: langCode,
+        ),
+        'editor');
   }
 
   static AppRoute fullscreen({Key? key}) {

lib/core/update.dart

@@ -5,7 +5,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:logging/logging.dart';
 import 'package:r_upgrade/r_upgrade.dart';
-import 'package:toolbox/core/extension/navigator.dart';
+import 'package:toolbox/core/extension/context.dart';
 import 'package:toolbox/core/utils/misc.dart' hide pathJoin;
 import 'package:toolbox/data/model/app/update.dart';
 import 'package:toolbox/data/res/path.dart';

lib/core/utils/ui.dart

@@ -3,7 +3,7 @@ import 'dart:io';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/navigator.dart';
+import 'package:toolbox/core/extension/context.dart';
 import 'package:toolbox/data/model/app/tab.dart';
 import 'package:url_launcher/url_launcher.dart';
 
@@ -19,9 +19,6 @@ import 'platform.dart';
 import '../extension/stringx.dart';
 import '../extension/uint8list.dart';
 
-bool isDarkMode(BuildContext context) =>
-    Theme.of(context).brightness == Brightness.dark;
-
 void showSnackBar(BuildContext context, Widget child) =>
     ScaffoldMessenger.of(context).showSnackBar(SnackBar(
       content: child,