Move onSpecificOptionChange adoption

src/browser/Terminal.ts

@@ -264,6 +264,17 @@ export class Terminal extends CoreTerminal implements ITerminal {
     }
   }
 
+  private _handleScreenReaderModeOptionChange(value: boolean): void {
+    if (value) {
+      if (!this._accessibilityManager && this._renderService) {
+        this._accessibilityManager = new AccessibilityManager(this, this._renderService);
+      }
+    } else {
+      this._accessibilityManager?.dispose();
+      this._accessibilityManager = undefined;
+    }
+  }
+
   protected _updateOptions(key: string): void {
     // TODO: These listeners should be owned by individual components
     switch (key) {
@@ -285,6 +296,7 @@ export class Terminal extends CoreTerminal implements ITerminal {
       case 'fontWeight':
       case 'fontWeightBold':
       case 'minimumContrastRatio':
+        // TODO: move to render service
         // When the font changes the size of the cells may change which requires a renderer clear
         if (this._renderService) {
           this._renderService.clear();
@@ -292,19 +304,6 @@ export class Terminal extends CoreTerminal implements ITerminal {
           this.refresh(0, this.rows - 1);
         }
         break;
-      case 'scrollback':
-        this.viewport?.syncScrollArea();
-        break;
-      case 'screenReaderMode':
-        if (this.optionsService.rawOptions.screenReaderMode) {
-          if (!this._accessibilityManager && this._renderService) {
-            this._accessibilityManager = new AccessibilityManager(this, this._renderService);
-          }
-        } else {
-          this._accessibilityManager?.dispose();
-          this._accessibilityManager = undefined;
-        }
-        break;
     }
   }
 
@@ -577,6 +576,7 @@ export class Terminal extends CoreTerminal implements ITerminal {
       // ensure the correct order of the dprchange event
       this._accessibilityManager = new AccessibilityManager(this, this._renderService);
     }
+    this.register(this.optionsService.onSpecificOptionChange('screenReaderMode', e => this._handleScreenReaderModeOptionChange(e)));
 
     if (this.options.overviewRulerWidth) {
       this._overviewRulerRenderer = this.register(this._instantiationService.createInstance(OverviewRulerRenderer, this._viewportElement, this.screenElement));

src/browser/Viewport.ts

@@ -75,6 +75,7 @@ export class Viewport extends Disposable implements IViewport {
 
     this._handleThemeChange(themeService.colors);
     this.register(themeService.onChangeColors(e => this._handleThemeChange(e)));
+    this.register(this._optionsService.onSpecificOptionChange('scrollback', () => this.syncScrollArea()));
 
     // Perform this async to ensure the ICharSizeService is ready.
     setTimeout(() => this.syncScrollArea(), 0);

src/common/CoreTerminal.ts

@@ -261,7 +261,7 @@ export abstract class CoreTerminal extends Disposable implements ICoreTerminal {
     this.coreMouseService.reset();
   }
 
-  private _handleWindowsModeOptionChange(value: boolean | undefined): void {
+  private _handleWindowsModeOptionChange(value: boolean): void {
     if (value) {
       this._enableWindowsMode();
     } else {

src/common/services/Services.ts

@@ -200,7 +200,7 @@ export interface IOptionsService {
    * preferred over {@link onOptionChange} when only a single option is being listened to.
    */
   // eslint-disable-next-line @typescript-eslint/naming-convention
-  onSpecificOptionChange<T extends keyof ITerminalOptions>(key: T, listener: (arg1: ITerminalOptions[T]) => any): IDisposable;
+  onSpecificOptionChange<T extends keyof ITerminalOptions>(key: T, listener: (arg1: Required<ITerminalOptions>[T]) => any): IDisposable;
 }
 
 export type FontWeight = 'normal' | 'bold' | '100' | '200' | '300' | '400' | '500' | '600' | '700' | '800' | '900' | number;