relicense appflowy editor (#1938)

* revert:"fix: remove keyword when click selection menu item"

This reverts commit 5782dec.

* revert(appflowy_editor):revert "feat: double asterisks/underscores to bold text"

This reverts commit c0964fa.

* revert(appflowy_editor):revert "fix: workaround infinity formatting"

This reverts commit 6a902a2.
The Appflowy folder under the frontend had been removed before reverting.

* chore(appflow_editor):update test variable after reverting

* chore(appflowy_editor): comment out the test for reverting

* chore(appflowy_editor): update variable type after reverting

* chore(appflowy_editor): remove unused import after reverting

* feat(appflowy_editor): double asterisk to bold text

* test(appflowy_editor): test double asterisk to bold text

* fix(appflowy_editor): delete slash after a selection menu item is selected

* test(appflowy_editor): test selection menu widget after clicking

* feat(appflowy_editor):  double asterisk to bold text and remove slash after clicking selection menu item   (#1935)

* feat(appflowy_editor): double asterisk to bold text

* test(appflowy_editor): test double asterisk to bold text

* fix(appflowy_editor): delete slash after a selection menu item is selected

* test(appflowy_editor): test selection menu widget after clicking

* feat(appflowy_editor): double underscore to bold text

* test(appflowy_editor): test double underscore to bold text

* chore(appflowy_editor): put checkbox testing back

* chore: format code

---------

Co-authored-by: Yijing Huang <[email protected]>

Author: LucasXu0

frontend/appflowy_flutter/lib/plugins/document/presentation/plugins/board/board_menu_item.dart

@@ -7,7 +7,7 @@ import 'package:flowy_infra/image.dart';
 import 'package:flutter/material.dart';
 
 SelectionMenuItem boardMenuItem = SelectionMenuItem(
-  name: () => LocaleKeys.document_plugins_referencedBoard.tr(),
+  name: LocaleKeys.document_plugins_referencedBoard.tr(),
   icon: (editorState, onSelected) {
     return svgWidget(
       'editor/board',

frontend/appflowy_flutter/lib/plugins/document/presentation/plugins/grid/grid_menu_item.dart

@@ -7,7 +7,7 @@ import 'package:flowy_infra/image.dart';
 import 'package:flutter/material.dart';
 
 SelectionMenuItem gridMenuItem = SelectionMenuItem(
-  name: () => LocaleKeys.document_plugins_referencedGrid.tr(),
+  name: LocaleKeys.document_plugins_referencedGrid.tr(),
   icon: (editorState, onSelected) {
     return svgWidget(
       'editor/grid',

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

@@ -37,7 +37,7 @@ ShortcutEventHandler _insertHorzaontalRule = (editorState, event) {
 };
 
 SelectionMenuItem horizontalRuleMenuItem = SelectionMenuItem(
-  name: () => 'Horizontal rule',
+  name: 'Horizontal rule',
   icon: (editorState, onSelected) => Icon(
     Icons.horizontal_rule,
     color: onSelected

frontend/appflowy_flutter/packages/appflowy_editor/example/lib/plugin/AI/auto_completion.dart

@@ -5,7 +5,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 
 SelectionMenuItem autoCompletionMenuItem = SelectionMenuItem(
-  name: () => 'Auto generate content',
+  name: 'Auto generate content',
   icon: (editorState, onSelected) => Icon(
     Icons.rocket,
     size: 18.0,

frontend/appflowy_flutter/packages/appflowy_editor/example/lib/plugin/AI/continue_to_write.dart

@@ -4,7 +4,7 @@ import 'package:example/plugin/AI/text_robot.dart';
 import 'package:flutter/material.dart';
 
 SelectionMenuItem continueToWriteMenuItem = SelectionMenuItem(
-  name: () => 'Continue To Write',
+  name: 'Continue To Write',
   icon: (editorState, onSelected) => Icon(
     Icons.print,
     size: 18.0,

frontend/appflowy_flutter/packages/appflowy_editor/lib/src/core/legacy/built_in_attribute_keys.dart

@@ -37,7 +37,6 @@ class BuiltInAttributeKey {
   static String checkbox = 'checkbox';
   static String code = 'code';
   static String number = 'number';
-  static String defaultFormating = 'defaultFormating';
 
   static List<String> partialStyleKeys = [
     BuiltInAttributeKey.bold,

frontend/appflowy_flutter/packages/appflowy_editor/lib/src/render/selection_menu/selection_menu_item_widget.dart

@@ -47,7 +47,7 @@ class _SelectionMenuItemWidgetState extends State<SelectionMenuItemWidget> {
                 : MaterialStateProperty.all(Colors.transparent),
           ),
           label: Text(
-            widget.item.name(),
+            widget.item.name,
             textAlign: TextAlign.left,
             style: TextStyle(
               color: (widget.isSelected || _onHover)

frontend/appflowy_flutter/packages/appflowy_editor/lib/src/render/selection_menu/selection_menu_service.dart

@@ -156,7 +156,7 @@ List<SelectionMenuItem> get defaultSelectionMenuItems =>
     _defaultSelectionMenuItems;
 final List<SelectionMenuItem> _defaultSelectionMenuItems = [
   SelectionMenuItem(
-    name: () => AppFlowyEditorLocalizations.current.text,
+    name: AppFlowyEditorLocalizations.current.text,
     icon: (editorState, onSelected) =>
         _selectionMenuIcon('text', editorState, onSelected),
     keywords: ['text'],
@@ -165,7 +165,7 @@ final List<SelectionMenuItem> _defaultSelectionMenuItems = [
     },
   ),
   SelectionMenuItem(
-    name: () => AppFlowyEditorLocalizations.current.heading1,
+    name: AppFlowyEditorLocalizations.current.heading1,
     icon: (editorState, onSelected) =>
         _selectionMenuIcon('h1', editorState, onSelected),
     keywords: ['heading 1, h1'],
@@ -174,7 +174,7 @@ final List<SelectionMenuItem> _defaultSelectionMenuItems = [
     },
   ),
   SelectionMenuItem(
-    name: () => AppFlowyEditorLocalizations.current.heading2,
+    name: AppFlowyEditorLocalizations.current.heading2,
     icon: (editorState, onSelected) =>
         _selectionMenuIcon('h2', editorState, onSelected),
     keywords: ['heading 2, h2'],
@@ -183,7 +183,7 @@ final List<SelectionMenuItem> _defaultSelectionMenuItems = [
     },
   ),
   SelectionMenuItem(
-    name: () => AppFlowyEditorLocalizations.current.heading3,
+    name: AppFlowyEditorLocalizations.current.heading3,
     icon: (editorState, onSelected) =>
         _selectionMenuIcon('h3', editorState, onSelected),
     keywords: ['heading 3, h3'],
@@ -192,14 +192,14 @@ final List<SelectionMenuItem> _defaultSelectionMenuItems = [
     },
   ),
   SelectionMenuItem(
-    name: () => AppFlowyEditorLocalizations.current.image,
+    name: AppFlowyEditorLocalizations.current.image,
     icon: (editorState, onSelected) =>
         _selectionMenuIcon('image', editorState, onSelected),
     keywords: ['image'],
     handler: showImageUploadMenu,
   ),
   SelectionMenuItem(
-    name: () => AppFlowyEditorLocalizations.current.bulletedList,
+    name: AppFlowyEditorLocalizations.current.bulletedList,
     icon: (editorState, onSelected) =>
         _selectionMenuIcon('bulleted_list', editorState, onSelected),
     keywords: ['bulleted list', 'list', 'unordered list'],
@@ -208,7 +208,7 @@ final List<SelectionMenuItem> _defaultSelectionMenuItems = [
     },
   ),
   SelectionMenuItem(
-    name: () => AppFlowyEditorLocalizations.current.numberedList,
+    name: AppFlowyEditorLocalizations.current.numberedList,
     icon: (editorState, onSelected) =>
         _selectionMenuIcon('number', editorState, onSelected),
     keywords: ['numbered list', 'list', 'ordered list'],
@@ -217,7 +217,7 @@ final List<SelectionMenuItem> _defaultSelectionMenuItems = [
     },
   ),
   SelectionMenuItem(
-    name: () => AppFlowyEditorLocalizations.current.checkbox,
+    name: AppFlowyEditorLocalizations.current.checkbox,
     icon: (editorState, onSelected) =>
         _selectionMenuIcon('checkbox', editorState, onSelected),
     keywords: ['todo list', 'list', 'checkbox list'],
@@ -226,7 +226,7 @@ final List<SelectionMenuItem> _defaultSelectionMenuItems = [
     },
   ),
   SelectionMenuItem(
-    name: () => AppFlowyEditorLocalizations.current.quote,
+    name: AppFlowyEditorLocalizations.current.quote,
     icon: (editorState, onSelected) =>
         _selectionMenuIcon('quote', editorState, onSelected),
     keywords: ['quote', 'refer'],

frontend/appflowy_flutter/packages/appflowy_editor/lib/src/render/selection_menu/selection_menu_widget.dart

@@ -20,14 +20,14 @@ class SelectionMenuItem {
     required SelectionMenuItemHandler handler,
   }) {
     this.handler = (editorState, menuService, context) {
-      _deleteToSlash(editorState);
+      _deleteSlash(editorState);
       WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
         handler(editorState, menuService, context);
       });
     };
   }
 
-  final String Function() name;
+  final String name;
   final Widget Function(EditorState editorState, bool onSelected) icon;
 
   /// Customizes keywords for item.
@@ -36,20 +36,23 @@ class SelectionMenuItem {
   final List<String> keywords;
   late final SelectionMenuItemHandler handler;
 
-  void _deleteToSlash(EditorState editorState) {
+  void _deleteSlash(EditorState editorState) {
     final selectionService = editorState.service.selectionService;
     final selection = selectionService.currentSelection.value;
     final nodes = selectionService.currentSelectedNodes;
     if (selection != null && nodes.length == 1) {
       final node = nodes.first as TextNode;
       final end = selection.start.offset;
-      final start = node.toPlainText().substring(0, end).lastIndexOf('/');
+      final lastSlashIndex =
+          node.toPlainText().substring(0, end).lastIndexOf('/');
+      // delete all the texts after '/' along with '/'
       final transaction = editorState.transaction
         ..deleteText(
           node,
-          start,
-          selection.start.offset - start,
+          lastSlashIndex,
+          end - lastSlashIndex,
         );
+
       editorState.apply(transaction);
     }
   }
@@ -81,7 +84,7 @@ class SelectionMenuItem {
         updateSelection,
   }) {
     return SelectionMenuItem(
-      name: () => name,
+      name: name,
       icon: (editorState, onSelected) => Icon(
         iconData,
         color: onSelected