fix search integration issues

lib/appflowy_editor.dart

@@ -9,6 +9,7 @@ export 'src/editor/block_component/rich_text/appflowy_rich_text_keys.dart';
 export 'src/editor/block_component/rich_text/default_selectable_mixin.dart';
 // editor part, including editor component, block component, etc.
 export 'src/editor/editor.dart';
+export 'src/editor/find_replace_menu/find_and_replace.dart';
 export 'src/editor/selection_menu/selection_menu.dart';
 // editor state
 export 'src/editor_state.dart';

lib/src/editor/editor_component/service/scroll/desktop_scroll_service.dart

@@ -80,7 +80,7 @@ class _DesktopScrollServiceState extends State<DesktopScrollService>
 
   @override
   void jumpTo(int index) {
-    throw UnimplementedError();
+    editorScrollController.jumpTo(offset: index.toDouble());
   }
 
   @override

lib/src/editor/editor_component/service/scroll/editor_scroll_controller.dart

@@ -181,7 +181,10 @@ class EditorScrollController {
       );
     }
 
-    scrollOffsetController.jumpTo(offset: max(0, offset));
+    itemScrollController.jumpTo(
+      index: max(0, offset.toInt()),
+      alignment: 0.5,
+    );
   }
 
   void jumpToTop() {

lib/src/editor/editor_component/service/shortcuts/command_shortcut_events/find_replace_command.dart

@@ -24,12 +24,23 @@ class FindReplaceStyle {
   FindReplaceStyle({
     this.selectedHighlightColor = const Color(0xFFFFB931),
     this.unselectedHighlightColor = const Color(0x60ECBC5F),
+    this.findMenuBuilder,
   });
 
   //selected highlight color is used as background color on the selected found pattern.
   final Color selectedHighlightColor;
   //unselected highlight color is used on every other found pattern which can be selected.
   final Color unselectedHighlightColor;
+
+  // find menu builder
+  Widget Function(
+    BuildContext context,
+    EditorState editorState,
+    FindReplaceLocalizations? localizations,
+    FindReplaceStyle style,
+    bool showReplaceMenu,
+    VoidCallback onDismiss,
+  )? findMenuBuilder;
 }
 
 class FindReplaceLocalizations {
@@ -108,7 +119,7 @@ KeyEventResult _showFindAndReplaceDialog(
   _findReplaceService = FindReplaceMenu(
     context: context,
     editorState: editorState,
-    replaceFlag: openReplace,
+    showReplaceMenu: openReplace,
     localizations: localizations,
     style: style,
   );

lib/src/editor/find_replace_menu/find_and_replace.dart

@@ -0,0 +1 @@
+export 'search_service_v2.dart';

lib/src/editor/find_replace_menu/find_menu_service.dart

@@ -13,14 +13,14 @@ class FindReplaceMenu implements FindReplaceService {
   FindReplaceMenu({
     required this.context,
     required this.editorState,
-    required this.replaceFlag,
+    required this.showReplaceMenu,
     this.localizations,
     required this.style,
   });
 
   final BuildContext context;
   final EditorState editorState;
-  final bool replaceFlag;
+  final bool showReplaceMenu;
   final FindReplaceLocalizations? localizations;
   final FindReplaceStyle style;
 
@@ -68,29 +68,37 @@ class FindReplaceMenu implements FindReplaceService {
         return Positioned(
           top: topOffset,
           right: rightOffset,
-          child: Material(
-            borderRadius: BorderRadius.circular(8.0),
-            child: DecoratedBox(
-              decoration: BoxDecoration(
-                color: editorState.editorStyle.selectionColor,
-                boxShadow: [
-                  BoxShadow(
-                    blurRadius: 5,
-                    spreadRadius: 1,
-                    color: Colors.black.withOpacity(0.1),
+          child: style.findMenuBuilder?.call(
+                context,
+                editorState,
+                localizations,
+                style,
+                showReplaceMenu,
+                dismiss,
+              ) ??
+              Material(
+                borderRadius: BorderRadius.circular(8.0),
+                child: DecoratedBox(
+                  decoration: BoxDecoration(
+                    color: editorState.editorStyle.selectionColor,
+                    boxShadow: [
+                      BoxShadow(
+                        blurRadius: 5,
+                        spreadRadius: 1,
+                        color: Colors.black.withOpacity(0.1),
+                      ),
+                    ],
+                    borderRadius: BorderRadius.circular(6.0),
                   ),
-                ],
-                borderRadius: BorderRadius.circular(6.0),
-              ),
-              child: FindAndReplaceMenuWidget(
-                onDismiss: dismiss,
-                editorState: editorState,
-                showReplaceMenu: replaceFlag,
-                localizations: localizations,
-                style: style,
+                  child: FindAndReplaceMenuWidget(
+                    onDismiss: dismiss,
+                    editorState: editorState,
+                    showReplaceMenu: showReplaceMenu,
+                    localizations: localizations,
+                    style: style,
+                  ),
+                ),
               ),
-            ),
-          ),
         );
       },
     );

lib/src/editor/find_replace_menu/find_replace_widget.dart

@@ -1,6 +1,5 @@
 import 'package:appflowy_editor/appflowy_editor.dart';
 import 'package:appflowy_editor/src/editor/find_replace_menu/find_replace_menu_icon_button.dart';
-import 'package:appflowy_editor/src/editor/find_replace_menu/search_service_v2.dart';
 import 'package:flutter/material.dart';
 
 const double _iconButtonSize = 30;

lib/src/editor/find_replace_menu/search_service_v2.dart

@@ -27,12 +27,16 @@ class SearchServiceV2 {
   int _selectedIndex = 0;
   int get selectedIndex => _selectedIndex;
   set selectedIndex(int index) {
+    _prevSelectedIndex = _selectedIndex;
     _selectedIndex = matchedPositions.value.isEmpty
         ? -1
         : index.clamp(0, matchedPositions.value.length - 1);
     currentSelectedIndex.value = _selectedIndex;
   }
 
+  // only used for scrolling to the first or the last match.
+  int _prevSelectedIndex = 0;
+
   ValueNotifier<int> currentSelectedIndex = ValueNotifier(0);
 
   void dispose() {
@@ -101,6 +105,18 @@ class SearchServiceV2 {
       path: start.path,
       offset: start.offset + pattern.length,
     );
+
+    // https://github.com/google/flutter.widgets/issues/151
+    // there's a bug in the scrollable_positioned_list package
+    // we can't scroll to the index without animation.
+    // so we just scroll the position if the index is the first or the last.
+    final length = matchedPositions.value.length - 1;
+    if (_prevSelectedIndex != selectedIndex &&
+        ((_prevSelectedIndex == length && selectedIndex == 0) ||
+            (_prevSelectedIndex == 0 && selectedIndex == length))) {
+      editorState.scrollService?.jumpTo(start.path.first);
+    }
+
     editorState.updateSelectionWithReason(
       Selection(start: start, end: end),
       extraInfo: {

lib/src/editor/toolbar/desktop/floating_toolbar.dart

@@ -1,7 +1,6 @@
 import 'dart:math';
 
 import 'package:appflowy_editor/appflowy_editor.dart';
-import 'package:appflowy_editor/src/editor/find_replace_menu/search_service_v2.dart';
 import 'package:flutter/material.dart';
 
 class FloatingToolbarStyle {