feat: Support for desktop submenus using MenuAnchor.

example/lib/editor_autocomplete.dart

@@ -93,7 +93,7 @@ class AutoCompleteEditor extends StatefulWidget {
 
 class _AutoCompleteEditorState extends State<AutoCompleteEditor> {
 
-  final CodeLineEditingController _controller = CodeLineEditingController();
+  final CodeLineEditingController _controller = CodeLineEditingController(contextMenuDelegate: ContextMenuDelegateImpl());
 
   @override
   void initState() {

example/lib/menu.dart

@@ -35,6 +35,10 @@ class ContextMenuControllerImpl implements SelectionToolbarController {
     required LayerLink layerLink,
     required ValueNotifier<bool> visibility,
   }) {
+    if(controller.contextMenuDelegate != null && !kIsAndroid && !kIsIOS){
+      controller.menuController.open(position: anchors.secondaryAnchor);
+      return;
+    }
     showMenu(
       context: context,
       position: RelativeRect.fromSize(anchors.primaryAnchor & const Size(150, double.infinity),
@@ -62,4 +66,71 @@ class ContextMenuControllerImpl implements SelectionToolbarController {
     );
   }
 
+}
+
+class ContextMenuDelegateImpl implements ContextMenuDelegate{
+  @override
+  List<Widget> buildMenuItems({required CodeLineEditingController controller, required BuildContext context}) {
+    return [
+      Padding(
+      padding: const EdgeInsets.all(6.0),
+      child: Column(children: [
+
+        _buildRightMenuItem(context:context, text: 'Cut', onPressed: () {controller.cut();}),
+        _buildRightMenuItem(context:context, text: 'Copy', onPressed: () {controller.copy();}),
+        _buildRightMenuItem(context:context, text: 'Paste', onPressed: (){ controller.paste();}),
+        _buildSubMenu(context: context, text: 'Sub Menu',onPressed: (){}, menuChildren: [_buildRightMenuItem(context:context, text: 'Select All', onPressed: (){ controller.selectAll();})])
+
+      ],),
+    )
+    ];
+  }
+
+  Widget _buildRightMenuItem({
+    required BuildContext context,
+    required String text,
+    VoidCallback? onPressed,
+    bool enabled = true,
+  }){
+    final Color textColor = Theme.of(context).brightness == Brightness.light ? const Color.fromRGBO(0, 0, 0, 0.85) : const Color.fromRGBO(255, 255, 255, 0.85);
+    return MenuItemButton(
+      style: enabled ? null : Theme.of(context).menuButtonTheme.style?.copyWith(foregroundColor: WidgetStatePropertyAll(textColor.withOpacity(0.5))),
+      onPressed: enabled ? onPressed : null,
+      child: SizedBox(
+        height: 24,
+        // width: 160,
+        child: Align(
+          alignment: Alignment.centerLeft,
+          child: Text(
+            text,
+            strutStyle: const StrutStyle(
+              fontSize: 11,
+              leading: 0,
+              height: 1.1,
+              // 1.1更居中
+              forceStrutHeight: true, // 关键属性 强制改为文字高度
+            ),
+            overflow: TextOverflow.ellipsis,
+          ),),
+      ),
+    );
+  }
+
+  Widget _buildSubMenu({
+    required BuildContext context,
+    required String text,
+    VoidCallback? onPressed,
+    bool enabled = true,
+    required List<Widget> menuChildren,
+  }) {
+    return SubmenuButton(
+      style: Theme.of(context).menuButtonTheme.style?.copyWith(
+          padding: WidgetStateProperty.all<EdgeInsetsGeometry>(
+            const EdgeInsets.only(left: 0.0, right: 10.0),
+          )),
+      menuChildren: enabled ? menuChildren : [],
+      child: Text(text),
+    );
+  }
+
 }

lib/src/_code_line.dart

@@ -19,11 +19,16 @@ class _CodeLineEditingControllerImpl extends ValueNotifier<CodeLineEditingValue>
   late int _preEditLineIndex;
   CodeLineEditingValue? _preValue;
   GlobalKey? _editorKey;
+  @override
+  final MenuController menuController = MenuController();
+  @override
+  final ContextMenuDelegate? contextMenuDelegate;
 
   _CodeLineEditingControllerImpl({
     required CodeLines codeLines,
     required this.options,
     this.spanBuilder,
+    this.contextMenuDelegate,
   }) : super(CodeLineEditingValue(codeLines: codeLines)) {
     _cache = _CodeLineEditingCache(this);
     _preEditLineIndex = -1;
@@ -2500,4 +2505,18 @@ class _CodeLineEditingControllerDelegate implements CodeLineEditingController {
     _delegate.undo();
   }
 
+  @override
+  ContextMenuDelegate? get contextMenuDelegate => delegate.contextMenuDelegate;
+
+  @override
+  MenuController get menuController => delegate.menuController;
+
+}
+
+abstract class ContextMenuDelegate {
+  List<Widget> buildMenuItems({
+    required CodeLineEditingController controller,
+    required BuildContext context,
+  });
+
 }

lib/src/_code_selection.dart

@@ -60,13 +60,13 @@ class _CodeSelectionGestureDetectorState extends State<_CodeSelectionGestureDete
             _onMobileLongPressedStart(details.globalPosition);
             _autoScrollWhenDragging();
           } else {
-            widget.selectionOverlayController.showToolbar(context, details.globalPosition);
+            widget.selectionOverlayController.showToolbar(context, details.globalPosition,details.localPosition);
           }
           widget.selectionOverlayController.showHandle(context);
         },
         onLongPressEnd: (details) {
           if (_longPressOnSelection != true) {
-            widget.selectionOverlayController.showToolbar(context, details.globalPosition);
+            widget.selectionOverlayController.showToolbar(context, details.globalPosition,details.localPosition);
           }
           _dragPosition = null;
           _longPressOnSelection = false;
@@ -155,7 +155,13 @@ class _CodeSelectionGestureDetectorState extends State<_CodeSelectionGestureDete
             _pointerTapPosition = null;
           },
           behavior: widget.behavior ?? HitTestBehavior.translucent,
-          child: widget.child,
+          child: MenuAnchor(
+            consumeOutsideTap: true,
+            anchorTapClosesMenu: true,
+            controller: widget.controller.menuController,
+            menuChildren: widget.controller.contextMenuDelegate == null ? [] : widget.controller.contextMenuDelegate!.buildMenuItems(controller: widget.controller, context: context),
+            child: widget.child,
+          ),
         ),
       );
     }
@@ -181,7 +187,7 @@ class _CodeSelectionGestureDetectorState extends State<_CodeSelectionGestureDete
       kDoubleTapTimeout.inMilliseconds && _pointerTapPosition != null && _pointerTapPosition!.isSamePosition(position)) {
       _onDoubleTap(position);
       widget.selectionOverlayController.showHandle(context);
-      widget.selectionOverlayController.showToolbar(context, position);
+      widget.selectionOverlayController.showToolbar(context, position ,null);
     } else {
       _pointerTapTimestamp = now;
       _pointerTapPosition = position;
@@ -302,7 +308,7 @@ class _CodeSelectionGestureDetectorState extends State<_CodeSelectionGestureDete
       return;
     }
     widget.controller.clearComposing();
-    widget.selectionOverlayController.showToolbar(context, details.globalPosition);
+    widget.selectionOverlayController.showToolbar(context, details.globalPosition,details.localPosition);
   }
 
   void _extendSelection(Offset offset, _SelectionChangedCause cause) {
@@ -417,7 +423,7 @@ abstract class _SelectionOverlayController {
 
   void hideHandle();
 
-  void showToolbar(BuildContext context, Offset position);
+  void showToolbar(BuildContext context, Offset position, Offset? localPosition);
 
   void hideToolbar();
 
@@ -451,12 +457,13 @@ class _DesktopSelectionOverlayController implements _SelectionOverlayController
   }
 
   @override
-  void showToolbar(BuildContext context, Offset? position) {
+  void showToolbar(BuildContext context, Offset? position ,Offset? localPosition ) {
     if (position == null) {
       return;
     }
     onShowToolbar(context, TextSelectionToolbarAnchors(
-      primaryAnchor: position
+      primaryAnchor: position,
+      secondaryAnchor: localPosition
     ), null);
   }
 
@@ -558,7 +565,7 @@ class _MobileSelectionOverlayController implements _SelectionOverlayController {
   }
 
   @override
-  void showToolbar(BuildContext context, Offset globalPosition) {
+  void showToolbar(BuildContext context, Offset globalPosition, Offset? localPosition) {
     globalPosition = _clampPosition(globalPosition);
     final Rect editingRegion = Rect.fromPoints(
       ensureRender.localToGlobal(Offset.zero),
@@ -696,7 +703,7 @@ class _MobileSelectionOverlayController implements _SelectionOverlayController {
             if (position == null) {
               return;
             }
-            showToolbar(_context, position);
+            showToolbar(_context, position, null);
           },
           onSelectionHandleDragStart: _handleStartHandleDragStart,
           onSelectionHandleDragUpdate: (details) {
@@ -728,7 +735,7 @@ class _MobileSelectionOverlayController implements _SelectionOverlayController {
           if (position == null) {
             return;
           }
-          showToolbar(_context, position);
+          showToolbar(_context, position, null);
         },
         onSelectionHandleDragStart: _handleEndHandleDragStart,
         onSelectionHandleDragUpdate: (details) {
@@ -822,7 +829,7 @@ class _MobileSelectionOverlayController implements _SelectionOverlayController {
   void _handleStartHandleDragEnd(DragEndDetails details) {
     _startHandleDragging = false;
     toolbarVisibility.value = true;
-    showToolbar(_context, _startHandleDragLastPosition);
+    showToolbar(_context, _startHandleDragLastPosition, null);
   }
 
   void _handleEndHandleDragStart(DragStartDetails details) {
@@ -901,7 +908,7 @@ class _MobileSelectionOverlayController implements _SelectionOverlayController {
   void _handleEndHandleDragEnd(DragEndDetails details) {
     _endHandleDragging = false;
     toolbarVisibility.value = true;
-    showToolbar(_context, _endHandleDragLastPosition);
+    showToolbar(_context, _endHandleDragLastPosition, null);
   }
 
   void _autoScrollWhenStartHandleDragging() {

lib/src/code_line.dart

@@ -53,10 +53,12 @@ abstract class CodeLineEditingController extends ValueNotifier<CodeLineEditingVa
     CodeLines codeLines = _kInitialCodeLines,
     CodeLineOptions options = const CodeLineOptions(),
     CodeLineSpanBuilder? spanBuilder,
+    ContextMenuDelegate? contextMenuDelegate,
   }) => _CodeLineEditingControllerImpl(
     codeLines: codeLines,
     options: options,
     spanBuilder: spanBuilder,
+    contextMenuDelegate: contextMenuDelegate
   );
 
   /// Creates a controller for a given text.
@@ -373,6 +375,11 @@ abstract class CodeLineEditingController extends ValueNotifier<CodeLineEditingVa
     required TextSpan textSpan,
     required TextStyle style,
   });
+
+  /// for context menu ,only support desktop
+  MenuController get  menuController;
+  /// for context menu ,only support desktop
+  ContextMenuDelegate? get  contextMenuDelegate;
 }
 
 /// A delegate controller for an editor field.

lib/src/code_shortcuts.dart

@@ -51,6 +51,10 @@ enum CodeShortcutType {
   replace,
   save,
   esc,
+  execute,
+  executeNewTab,
+  executeScript,
+  format
 }
 
 abstract class CodeShortcutsActivatorsBuilder {
@@ -218,6 +222,19 @@ class CodeShortcutSaveIntent extends Intent {
 class CodeShortcutEscIntent extends Intent {
   const CodeShortcutEscIntent();
 }
+class CodeShortcutExecuteIntent extends Intent {
+  const CodeShortcutExecuteIntent();
+}
+class CodeShortcutExecuteNewTabIntent extends Intent {
+  const CodeShortcutExecuteNewTabIntent();
+}
+class CodeShortcutExecuteScriptIntent extends Intent {
+  const CodeShortcutExecuteScriptIntent();
+}
+class CodeShortcutFormatIntent extends Intent {
+  const CodeShortcutFormatIntent();
+}
+
 
 const Map<CodeShortcutType, Intent> kCodeShortcutIntents = {
   CodeShortcutType.selectAll: CodeShortcutSelectAllIntent(),
@@ -270,6 +287,10 @@ const Map<CodeShortcutType, Intent> kCodeShortcutIntents = {
   CodeShortcutType.replace: CodeShortcutReplaceIntent(),
   CodeShortcutType.save: CodeShortcutSaveIntent(),
   CodeShortcutType.esc: CodeShortcutEscIntent(),
+  CodeShortcutType.execute: CodeShortcutExecuteIntent(),
+  CodeShortcutType.executeNewTab: CodeShortcutExecuteNewTabIntent(),
+  CodeShortcutType.executeScript: CodeShortcutExecuteScriptIntent(),
+  CodeShortcutType.format: CodeShortcutFormatIntent(),
 };
 
 const Map<CodeShortcutType, List<ShortcutActivator>> _kDefaultMacCodeShortcutsActivators = {
@@ -434,6 +455,18 @@ const Map<CodeShortcutType, List<ShortcutActivator>> _kDefaultMacCodeShortcutsAc
   CodeShortcutType.esc: [
     SingleActivator(LogicalKeyboardKey.escape)
   ],
+  CodeShortcutType.execute: [
+    SingleActivator(LogicalKeyboardKey.enter,meta: true)
+  ],
+  CodeShortcutType.executeNewTab: [
+    SingleActivator(LogicalKeyboardKey.backslash,meta: true)
+  ],
+  CodeShortcutType.executeScript: [
+    SingleActivator(LogicalKeyboardKey.keyX,alt: true)
+  ],
+  CodeShortcutType.format: [
+    SingleActivator(LogicalKeyboardKey.keyF,meta: true,shift: true)
+  ],
 };
 
 const Map<CodeShortcutType, List<ShortcutActivator>> _kDefaultCommonCodeShortcutsActivators = {
@@ -594,4 +627,16 @@ const Map<CodeShortcutType, List<ShortcutActivator>> _kDefaultCommonCodeShortcut
   CodeShortcutType.esc: [
     SingleActivator(LogicalKeyboardKey.escape)
   ],
+  CodeShortcutType.execute: [
+    SingleActivator(LogicalKeyboardKey.enter,control: true)
+  ],
+  CodeShortcutType.executeNewTab: [
+    SingleActivator(LogicalKeyboardKey.backslash,control: true)
+  ],
+  CodeShortcutType.executeScript: [
+    SingleActivator(LogicalKeyboardKey.keyX,alt: true)
+  ],
+  CodeShortcutType.format: [
+    SingleActivator(LogicalKeyboardKey.keyF,control: true,shift: true)
+  ],
 };