Fix cell selection state bugs (microsoft#223794)

fix selection bugs

Author: Yoyokrazy

src/vs/workbench/contrib/notebook/browser/controller/coreActions.ts

@@ -250,12 +250,14 @@ export abstract class NotebookMultiCellAction extends Action2 {
 		// no parsed args, try handle active editor
 		const editor = getEditorFromArgsOrActivePane(accessor);
 		if (editor) {
+			const selectedCellRange: ICellRange[] = editor.getSelections().length === 0 ? [editor.getFocus()] : editor.getSelections();
+
 			telemetryService.publicLog2<WorkbenchActionExecutedEvent, WorkbenchActionExecutedClassification>('workbenchActionExecuted', { id: this.desc.id, from: from });
 
 			return this.runWithContext(accessor, {
 				ui: false,
 				notebookEditor: editor,
-				selectedCells: cellRangeToViewCells(editor, editor.getSelections())
+				selectedCells: cellRangeToViewCells(editor, selectedCellRange)
 			});
 		}
 	}

src/vs/workbench/contrib/notebook/browser/controller/editActions.ts

@@ -634,10 +634,8 @@ registerAction2(class CommentSelectedCellsAction extends NotebookMultiCellAction
 			keybinding: {
 				when: ContextKeyExpr.and(
 					NOTEBOOK_EDITOR_FOCUSED,
-					NOTEBOOK_CELL_LIST_FOCUSED,
-					ContextKeyExpr.not(InputFocusedContextKey),
 					NOTEBOOK_EDITOR_EDITABLE,
-					NOTEBOOK_CELL_EDITABLE
+					ContextKeyExpr.not(InputFocusedContextKey),
 				),
 				primary: KeyMod.CtrlCmd | KeyCode.Slash,
 				weight: KeybindingWeight.WorkbenchContrib
@@ -657,6 +655,7 @@ registerAction2(class CommentSelectedCellsAction extends NotebookMultiCellAction
 			}
 		});
 
+
 		selectedCellEditors.forEach(editor => {
 			if (!editor.hasModel()) {
 				return;
@@ -667,6 +666,8 @@ registerAction2(class CommentSelectedCellsAction extends NotebookMultiCellAction
 			const modelOptions = model.getOptions();
 			const commentsOptions = editor.getOption(EditorOption.comments);
 
+			const selection = editor.getSelection();
+
 			commands.push(new LineCommentCommand(
 				languageConfigurationService,
 				new Selection(1, 1, model.getLineCount(), model.getLineMaxColumn(model.getLineCount())),
@@ -680,6 +681,8 @@ registerAction2(class CommentSelectedCellsAction extends NotebookMultiCellAction
 			editor.pushUndoStop();
 			editor.executeCommands(COMMENT_SELECTED_CELLS_ID, commands);
 			editor.pushUndoStop();
+
+			editor.setSelection(selection);
 		});
 	}