a11y view for last output from REPL input (#233943)

* a11y view for last output from REPL input

* default auto focus to input

* comment

src/vs/workbench/contrib/accessibility/browser/accessibilityConfiguration.ts

@@ -712,7 +712,7 @@ const configuration: IConfigurationNode = {
 		'accessibility.replEditor.autoFocusReplExecution': {
 			type: 'string',
 			enum: ['none', 'input', 'lastExecution'],
-			default: 'lastExecution',
+			default: 'input',
 			description: localize('replEditor.autoFocusAppendedCell', "Control whether focus should automatically be sent to the REPL when code is executed."),
 		}
 	}

src/vs/workbench/contrib/notebook/browser/replEditorAccessibleView.ts

@@ -0,0 +1,59 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { ServicesAccessor } from '../../../../editor/browser/editorExtensions.js';
+import { AccessibleViewType, AccessibleContentProvider, AccessibleViewProviderId } from '../../../../platform/accessibility/browser/accessibleView.js';
+import { IAccessibleViewImplentation } from '../../../../platform/accessibility/browser/accessibleViewRegistry.js';
+import { ContextKeyExpr } from '../../../../platform/contextkey/common/contextkey.js';
+import { IEditorService } from '../../../services/editor/common/editorService.js';
+import { AccessibilityVerbositySettingId } from '../../accessibility/browser/accessibilityConfiguration.js';
+import { isReplEditorControl } from '../../replNotebook/browser/replEditor.js';
+import { IS_COMPOSITE_NOTEBOOK, NOTEBOOK_CELL_LIST_FOCUSED } from '../common/notebookContextKeys.js';
+import { getAllOutputsText } from './viewModel/cellOutputTextHelper.js';
+
+/**
+ * The REPL input is already accessible, so we can show a view for the most recent execution output.
+ */
+export class ReplEditorAccessibleView implements IAccessibleViewImplentation {
+	readonly priority = 100;
+	readonly name = 'replEditorInput';
+	readonly type = AccessibleViewType.View;
+	readonly when = ContextKeyExpr.and(IS_COMPOSITE_NOTEBOOK, NOTEBOOK_CELL_LIST_FOCUSED.negate());
+	getProvider(accessor: ServicesAccessor) {
+		const editorService = accessor.get(IEditorService);
+		return getAccessibleOutputProvider(editorService);
+	}
+}
+
+export function getAccessibleOutputProvider(editorService: IEditorService) {
+	const editorControl = editorService.activeEditorPane?.getControl();
+
+	if (editorControl && isReplEditorControl(editorControl) && editorControl.notebookEditor) {
+		const notebookEditor = editorControl.notebookEditor;
+		const viewModel = notebookEditor?.getViewModel();
+		if (notebookEditor && viewModel) {
+			// last cell of the viewmodel is the last cell history
+			const lastCellIndex = viewModel.length - 1;
+			if (lastCellIndex >= 0) {
+				const cell = viewModel.viewCells[lastCellIndex];
+				const outputContent = getAllOutputsText(viewModel.notebookDocument, cell);
+
+				if (outputContent) {
+					return new AccessibleContentProvider(
+						AccessibleViewProviderId.Notebook,
+						{ type: AccessibleViewType.View },
+						() => { return outputContent; },
+						() => {
+							editorControl.activeCodeEditor?.focus();
+						},
+						AccessibilityVerbositySettingId.ReplEditor,
+					);
+				}
+			}
+		}
+	}
+
+	return;
+}

src/vs/workbench/contrib/replNotebook/browser/repl.contribution.ts

@@ -43,6 +43,7 @@ import { NOTEBOOK_EDITOR_WIDGET_ACTION_WEIGHT } from '../../notebook/browser/con
 import { INotebookEditorOptions } from '../../notebook/browser/notebookBrowser.js';
 import { NotebookEditorWidget } from '../../notebook/browser/notebookEditorWidget.js';
 import * as icons from '../../notebook/browser/notebookIcons.js';
+import { ReplEditorAccessibleView } from '../../notebook/browser/replEditorAccessibleView.js';
 import { INotebookEditorService } from '../../notebook/browser/services/notebookEditorService.js';
 import { CellEditType, CellKind, NotebookSetting, NotebookWorkingCopyTypeIdentifier, REPL_EDITOR_ID } from '../../notebook/common/notebookCommon.js';
 import { IS_COMPOSITE_NOTEBOOK, MOST_RECENT_REPL_EDITOR, NOTEBOOK_CELL_LIST_FOCUSED, NOTEBOOK_EDITOR_FOCUSED } from '../../notebook/common/notebookContextKeys.js';
@@ -473,6 +474,8 @@ async function executeReplInput(
 	}
 }
 
+AccessibleViewRegistry.register(new ReplEditorAccessibleView());
+
 KeybindingsRegistry.registerCommandAndKeybindingRule({
 	id: 'list.find.replInputFocus',
 	weight: KeybindingWeight.WorkbenchContrib + 1,