fix(flutter_desktop): document search

frontend/appflowy_flutter/integration_test/desktop/document/document_find_menu_test.dart

@@ -0,0 +1,144 @@
+import 'dart:math';
+
+import 'package:appflowy/generated/flowy_svgs.g.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/copy_and_paste/clipboard_service.dart';
+import 'package:appflowy/plugins/document/presentation/editor_plugins/plugins.dart';
+import 'package:appflowy/startup/startup.dart';
+import 'package:appflowy_editor/appflowy_editor.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:integration_test/integration_test.dart';
+import 'package:universal_platform/universal_platform.dart';
+
+import '../../shared/util.dart';
+
+void main() {
+  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
+
+  String generateRandomString(int len) {
+    final r = Random();
+    return String.fromCharCodes(
+      List.generate(len, (index) => r.nextInt(33) + 89),
+    );
+  }
+
+  testWidgets(
+    'document find menu test',
+    (tester) async {
+      await tester.initializeAppFlowy();
+      await tester.tapAnonymousSignInButton();
+
+      // create a new document
+      await tester.createNewPageWithNameUnderParent();
+
+      // tap editor to get focus
+      await tester.tapButton(find.byType(AppFlowyEditor));
+
+      // set clipboard data
+      final data = [
+        "123456\n",
+        ...List.generate(100, (_) => "${generateRandomString(50)}\n"),
+        "1234567\n",
+        ...List.generate(100, (_) => "${generateRandomString(50)}\n"),
+        "12345678\n",
+        ...List.generate(100, (_) => "${generateRandomString(50)}\n"),
+      ].join();
+      await getIt<ClipboardService>().setData(
+        ClipboardServiceData(
+          plainText: data,
+        ),
+      );
+
+      // paste
+      await tester.simulateKeyEvent(
+        LogicalKeyboardKey.keyV,
+        isControlPressed:
+            UniversalPlatform.isLinux || UniversalPlatform.isWindows,
+        isMetaPressed: UniversalPlatform.isMacOS,
+      );
+      await tester.pumpAndSettle();
+
+      // go back to beginning of document
+      // FIXME: Cannot run Ctrl+F unless selection is on screen
+      await tester.editor
+          .updateSelection(Selection.collapsed(Position(path: [0])));
+      await tester.pumpAndSettle();
+
+      expect(find.byType(FindAndReplaceMenuWidget), findsNothing);
+
+      // press cmd/ctrl+F to display the find menu
+      await tester.simulateKeyEvent(
+        LogicalKeyboardKey.keyF,
+        isControlPressed:
+            UniversalPlatform.isLinux || UniversalPlatform.isWindows,
+        isMetaPressed: UniversalPlatform.isMacOS,
+      );
+      await tester.pumpAndSettle();
+
+      expect(find.byType(FindAndReplaceMenuWidget), findsOneWidget);
+
+      final textField = find.descendant(
+        of: find.byType(FindAndReplaceMenuWidget),
+        matching: find.byType(TextField),
+      );
+
+      await tester.enterText(
+        textField,
+        "123456",
+      );
+      await tester.pumpAndSettle();
+      await tester.pumpAndSettle();
+
+      expect(
+        find.descendant(
+          of: find.byType(AppFlowyEditor),
+          matching: find.text("123456", findRichText: true),
+        ),
+        findsOneWidget,
+      );
+
+      await tester.testTextInput.receiveAction(TextInputAction.done);
+      await tester.pumpAndSettle();
+      await tester.pumpAndSettle();
+
+      expect(
+        find.descendant(
+          of: find.byType(AppFlowyEditor),
+          matching: find.text("1234567", findRichText: true),
+        ),
+        findsOneWidget,
+      );
+
+      await tester.showKeyboard(textField);
+      await tester.idle();
+      await tester.testTextInput.receiveAction(TextInputAction.done);
+      await tester.pumpAndSettle();
+      await tester.pumpAndSettle();
+
+      expect(
+        find.descendant(
+          of: find.byType(AppFlowyEditor),
+          matching: find.text("12345678", findRichText: true),
+        ),
+        findsOneWidget,
+      );
+
+      // tap next button, go back to beginning of document
+      await tester.tapButton(
+        find.descendant(
+          of: find.byType(FindMenu),
+          matching: find.byFlowySvg(FlowySvgs.arrow_down_s),
+        ),
+      );
+
+      expect(
+        find.descendant(
+          of: find.byType(AppFlowyEditor),
+          matching: find.text("123456", findRichText: true),
+        ),
+        findsOneWidget,
+      );
+    },
+  );
+}

frontend/appflowy_flutter/integration_test/desktop/document/document_test_runner_4.dart

@@ -1,6 +1,7 @@
 import 'package:integration_test/integration_test.dart';
 
 import 'document_block_option_test.dart' as document_block_option_test;
+import 'document_find_menu_test.dart' as document_find_menu_test;
 import 'document_inline_page_reference_test.dart'
     as document_inline_page_reference_test;
 import 'document_more_actions_test.dart' as document_more_actions_test;
@@ -22,5 +23,6 @@ void main() {
   document_with_file_test.main();
   document_shortcuts_test.main();
   document_block_option_test.main();
+  document_find_menu_test.main();
   document_toolbar_test.main();
 }

frontend/appflowy_flutter/lib/plugins/document/document_page.dart

@@ -161,7 +161,16 @@ class _DocumentPageState extends State<DocumentPage>
     }
 
     return Provider(
-      create: (_) => SharedEditorContext(),
+      create: (_) {
+        final context = SharedEditorContext();
+        if (widget.view.name.isEmpty) {
+          WidgetsBinding.instance.addPostFrameCallback((_) {
+            context.coverTitleFocusNode.requestFocus();
+          });
+        }
+        return context;
+      },
+      dispose: (buildContext, editorContext) => editorContext.dispose(),
       child: EditorTransactionService(
         viewId: widget.view.id,
         editorState: state.editorState!,

frontend/appflowy_flutter/lib/plugins/document/presentation/editor_page.dart

@@ -485,6 +485,7 @@ class _AppFlowyEditorPageState extends State<AppFlowyEditorPage>
               borderRadius: BorderRadius.circular(4),
             ),
             child: FindAndReplaceMenuWidget(
+              showReplaceMenu: showReplaceMenu,
               editorState: editorState,
               onDismiss: onDismiss,
             ),