Merge pull request microsoft#188294 from microsoft/merogge/screen-rea…

…der-message

inform screen reader user how to enter optimized mode in editor

src/vs/editor/browser/controller/textAreaHandler.ts

@@ -35,6 +35,7 @@ import { TokenizationRegistry } from 'vs/editor/common/languages';
 import { ColorId, ITokenPresentation } from 'vs/editor/common/encodedTokenAttributes';
 import { Color } from 'vs/base/common/color';
 import { IME } from 'vs/base/common/ime';
+import { IKeybindingService } from 'vs/platform/keybinding/common/keybinding';
 
 export interface IVisibleRangeProvider {
 	visibleRangeForPosition(position: Position): HorizontalPosition | null;
@@ -140,7 +141,12 @@ export class TextAreaHandler extends ViewPart {
 	public readonly textAreaCover: FastDomNode<HTMLElement>;
 	private readonly _textAreaInput: TextAreaInput;
 
-	constructor(context: ViewContext, viewController: ViewController, visibleRangeProvider: IVisibleRangeProvider) {
+	constructor(
+		context: ViewContext,
+		viewController: ViewController,
+		visibleRangeProvider: IVisibleRangeProvider,
+		@IKeybindingService private readonly _keybindingService: IKeybindingService
+	) {
 		super(context);
 
 		this._viewController = viewController;
@@ -553,7 +559,21 @@ export class TextAreaHandler extends ViewPart {
 	private _getAriaLabel(options: IComputedEditorOptions): string {
 		const accessibilitySupport = options.get(EditorOption.accessibilitySupport);
 		if (accessibilitySupport === AccessibilitySupport.Disabled) {
-			return nls.localize('accessibilityOffAriaLabel', "The editor is not accessible at this time. Press {0} for options.", platform.isLinux ? 'Shift+Alt+F1' : 'Alt+F1');
+
+			const toggleKeybindingLabel = this._keybindingService.lookupKeybinding('editor.action.toggleScreenReaderAccessibilityMode')?.getAriaLabel();
+			const runCommandKeybindingLabel = this._keybindingService.lookupKeybinding('workbench.action.showCommands')?.getAriaLabel();
+			const keybindingEditorKeybindingLabel = this._keybindingService.lookupKeybinding('workbench.action.openGlobalKeybindings')?.getAriaLabel();
+			const editorNotAccessibleMessage = nls.localize('accessibilityModeOff', "The editor is not accessible at this time.");
+			if (toggleKeybindingLabel) {
+				return nls.localize('accessibilityOffAriaLabel', "{0} To enable screen reader optimized mode, use {1}", editorNotAccessibleMessage, toggleKeybindingLabel);
+			} else if (runCommandKeybindingLabel) {
+				return nls.localize('accessibilityOffAriaLabelNoKb', "{0} To enable screen reader optimized mode, open the quick pick with {1} and run the command Toggle Screen Reader Accessibility Mode, which is currently not triggerable via keyboard.", editorNotAccessibleMessage, runCommandKeybindingLabel);
+			} else if (keybindingEditorKeybindingLabel) {
+				return nls.localize('accessibilityOffAriaLabelNoKbs', "{0} Please assign a keybinding for the command Toggle Screen Reader Accessibility Mode by accessing the keybindings editor with {1} and run it.", editorNotAccessibleMessage, keybindingEditorKeybindingLabel);
+			} else {
+				// SOS
+				return editorNotAccessibleMessage;
+			}
 		}
 		return options.get(EditorOption.ariaLabel);
 	}

src/vs/editor/browser/view.ts

@@ -54,6 +54,7 @@ import { IMouseWheelEvent } from 'vs/base/browser/mouseEvent';
 import { WhitespaceOverlay } from 'vs/editor/browser/viewParts/whitespace/whitespace';
 import { GlyphMarginWidgets } from 'vs/editor/browser/viewParts/glyphMargin/glyphMargin';
 import { GlyphMarginLane } from 'vs/editor/common/model';
+import { IInstantiationService } from 'vs/platform/instantiation/common/instantiation';
 
 
 export interface IContentWidgetData {
@@ -106,7 +107,8 @@ export class View extends ViewEventHandler {
 		colorTheme: IColorTheme,
 		model: IViewModel,
 		userInputEvents: ViewUserInputEvents,
-		overflowWidgetsDomNode: HTMLElement | undefined
+		overflowWidgetsDomNode: HTMLElement | undefined,
+		@IInstantiationService private readonly _instantiationService: IInstantiationService
 	) {
 		super();
 		this._selections = [new Selection(1, 1, 1, 1)];
@@ -123,7 +125,7 @@ export class View extends ViewEventHandler {
 		this._viewParts = [];
 
 		// Keyboard handler
-		this._textAreaHandler = new TextAreaHandler(this._context, viewController, this._createTextAreaHandlerHelper());
+		this._textAreaHandler = this._instantiationService.createInstance(TextAreaHandler, this._context, viewController, this._createTextAreaHandlerHelper());
 		this._viewParts.push(this._textAreaHandler);
 
 		// These two dom nodes must be constructed up front, since references are needed in the layout provider (scrolling & co.)

src/vs/editor/browser/widget/codeEditorWidget.ts

@@ -1853,7 +1853,8 @@ export class CodeEditorWidget extends Disposable implements editorBrowser.ICodeE
 			this._themeService.getColorTheme(),
 			viewModel,
 			viewUserInputEvents,
-			this._overflowWidgetsDomNode
+			this._overflowWidgetsDomNode,
+			this._instantiationService
 		);
 
 		return [view, true];

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

@@ -22,11 +22,15 @@ class ToggleScreenReaderMode extends Action2 {
 			id: 'editor.action.toggleScreenReaderAccessibilityMode',
 			title: { value: nls.localize('toggleScreenReaderMode', "Toggle Screen Reader Accessibility Mode"), original: 'Toggle Screen Reader Accessibility Mode' },
 			f1: true,
-			keybinding: {
+			keybinding: [{
 				primary: KeyMod.CtrlCmd | KeyCode.KeyE,
 				weight: KeybindingWeight.WorkbenchContrib + 10,
 				when: accessibilityHelpIsShown
-			}
+			},
+			{
+				primary: KeyMod.Alt | KeyCode.F3,
+				weight: KeybindingWeight.WorkbenchContrib + 10,
+			}]
 		});
 	}