Move ScreenDprMonitor to be owned by RenderCoordinator

(and a11y manager)

src/renderer/RenderCoordinator.ts

@@ -6,9 +6,12 @@
 import { IRenderer } from './Types';
 import { RenderDebouncer } from '../ui/RenderDebouncer';
 import { EventEmitter2, IEvent } from '../common/EventEmitter2';
+import { Disposable } from '../common/Lifecycle';
+import { ScreenDprMonitor } from '../../lib/ui/ScreenDprMonitor';
 
-export class RenderCoordinator {
+export class RenderCoordinator extends Disposable {
   private _renderDebouncer: RenderDebouncer;
+  private _screenDprMonitor: ScreenDprMonitor;
 
   private _onCanvasResize = new EventEmitter2<{ width: number, height: number }>();
   public get onCanvasResize(): IEvent<{ width: number, height: number }> { return this._onCanvasResize.event; }
@@ -22,7 +25,13 @@ export class RenderCoordinator {
     private _renderer: IRenderer,
     private _rowCount: number
   ) {
+    super();
     this._renderDebouncer = new RenderDebouncer((start, end) => this._renderRows(start, end));
+    this.register(this._renderDebouncer);
+
+    this._screenDprMonitor = new ScreenDprMonitor();
+    this._screenDprMonitor.setListener(() => this._renderer.onWindowResize(window.devicePixelRatio));
+    this.register(this._screenDprMonitor);
   }
 
   public refreshRows(start: number, end: number): void {

src/renderer/Renderer.ts

@@ -9,7 +9,6 @@ import { CursorRenderLayer } from './CursorRenderLayer';
 import { IRenderLayer, IRenderer, IRenderDimensions, ICharacterJoinerRegistry } from './Types';
 import { ITerminal, CharacterJoinerHandler } from '../Types';
 import { LinkRenderLayer } from './LinkRenderLayer';
-import { ScreenDprMonitor } from '../ui/ScreenDprMonitor';
 import { CharacterJoinerRegistry } from '../renderer/CharacterJoinerRegistry';
 import { Disposable } from '../common/Lifecycle';
 import { IColorSet } from '../ui/Types';
@@ -17,7 +16,6 @@ import { IColorSet } from '../ui/Types';
 export class Renderer extends Disposable implements IRenderer {
   private _renderLayers: IRenderLayer[];
   private _devicePixelRatio: number;
-  private _screenDprMonitor: ScreenDprMonitor;
   private _isPaused: boolean = false;
   private _needsFullRefresh: boolean = false;
   private _characterJoinerRegistry: ICharacterJoinerRegistry;
@@ -56,11 +54,6 @@ export class Renderer extends Disposable implements IRenderer {
     this._updateDimensions();
     this.onOptionsChanged();
 
-    // TODO: Move dpr monitor to RenderCoordinator
-    this._screenDprMonitor = new ScreenDprMonitor();
-    this._screenDprMonitor.setListener(() => this.onWindowResize(window.devicePixelRatio));
-    this.register(this._screenDprMonitor);
-
     // Detect whether IntersectionObserver is detected and enable renderer pause
     // and resume based on terminal visibility if so
     if ('IntersectionObserver' in window) {