add inlineChat.accessibleDiffView setting (microsoft#205837)

fixes microsoft#205714

Author: jrieken

src/vs/workbench/contrib/inlineChat/browser/inlineChatStrategies.ts

@@ -31,12 +31,13 @@ import { countWords } from 'vs/workbench/contrib/chat/common/chatWordCounter';
 import { InlineChatFileCreatePreviewWidget, InlineChatLivePreviewWidget } from 'vs/workbench/contrib/inlineChat/browser/inlineChatLivePreviewWidget';
 import { HunkInformation, ReplyResponse, Session } from 'vs/workbench/contrib/inlineChat/browser/inlineChatSession';
 import { InlineChatZoneWidget } from 'vs/workbench/contrib/inlineChat/browser/inlineChatWidget';
-import { CTX_INLINE_CHAT_CHANGE_HAS_DIFF, CTX_INLINE_CHAT_CHANGE_SHOWS_DIFF, CTX_INLINE_CHAT_DOCUMENT_CHANGED, overviewRulerInlineChatDiffInserted } from 'vs/workbench/contrib/inlineChat/common/inlineChat';
+import { CTX_INLINE_CHAT_CHANGE_HAS_DIFF, CTX_INLINE_CHAT_CHANGE_SHOWS_DIFF, CTX_INLINE_CHAT_DOCUMENT_CHANGED, InlineChatConfigKeys, overviewRulerInlineChatDiffInserted } from 'vs/workbench/contrib/inlineChat/common/inlineChat';
 import { HunkState } from './inlineChatSession';
 import { assertType } from 'vs/base/common/types';
 import { IModelService } from 'vs/editor/common/services/model';
 import { performAsyncTextEdit, asProgressiveEdit } from './utils';
 import { IAccessibilityService } from 'vs/platform/accessibility/common/accessibility';
+import { IConfigurationService } from 'vs/platform/configuration/common/configuration';
 
 export interface IEditObserver {
 	start(): void;
@@ -445,6 +446,7 @@ export class LiveStrategy extends EditModeStrategy {
 		@IContextKeyService contextKeyService: IContextKeyService,
 		@IEditorWorkerService protected readonly _editorWorkerService: IEditorWorkerService,
 		@IAccessibilityService private readonly _accessibilityService: IAccessibilityService,
+		@IConfigurationService private readonly _configService: IConfigurationService,
 		@IInstantiationService protected readonly _instaService: IInstantiationService,
 	) {
 		super(session, editor, zone);
@@ -705,7 +707,9 @@ export class LiveStrategy extends EditModeStrategy {
 				const remainingHunks = this._session.hunkData.pending;
 				this._updateSummaryMessage(remainingHunks);
 
-				if (this._accessibilityService.isScreenReaderOptimized()) {
+
+				const mode = this._configService.getValue<'on' | 'off' | 'auto'>(InlineChatConfigKeys.AccessibleDiffView);
+				if (mode === 'on' || mode === 'auto' && this._accessibilityService.isScreenReaderOptimized()) {
 					this._zone.widget.showAccessibleHunk(this._session, widgetData.hunk);
 				}
 

src/vs/workbench/contrib/inlineChat/common/inlineChat.ts

@@ -227,6 +227,7 @@ export const enum InlineChatConfigKeys {
 	FinishOnType = 'inlineChat.finishOnType',
 	AcceptedOrDiscardBeforeSave = 'inlineChat.acceptedOrDiscardBeforeSave',
 	HoldToSpeech = 'inlineChat.holdToSpeech',
+	AccessibleDiffView = 'inlineChat.accessibleDiffView'
 }
 
 Registry.as<IConfigurationRegistry>(Extensions.Configuration).registerConfiguration({
@@ -257,6 +258,17 @@ Registry.as<IConfigurationRegistry>(Extensions.Configuration).registerConfigurat
 			description: localize('holdToSpeech', "Whether holding the inline chat keybinding will automatically enable speech recognition."),
 			default: true,
 			type: 'boolean'
+		},
+		[InlineChatConfigKeys.AccessibleDiffView]: {
+			description: localize('accessibleDiffView', "Whether the inline chat also renders an accessible diff viewer for its changes."),
+			default: 'auto',
+			type: 'string',
+			enum: ['auto', 'on', 'off'],
+			markdownEnumDescriptions: [
+				localize('accessibleDiffView.auto', "The accessible diff viewer is based screen reader mode being enabled."),
+				localize('accessibleDiffView.on', "The accessible diff viewer is always enabled."),
+				localize('accessibleDiffView.off', "The accessible diff viewer is never enabled."),
+			],
 		}
 	}
 });