Use lightweight versions of most vs/ imports

addons/addon-image/src/ImageRenderer.ts

@@ -6,7 +6,7 @@
 import { toRGBA8888 } from 'sixel/lib/Colors';
 import { IDisposable } from '@xterm/xterm';
 import { ICellSize, ITerminalExt, IImageSpec, IRenderDimensions, IRenderService } from './Types';
-import { Disposable, MutableDisposable, toDisposable } from 'vs/base/common/lifecycle';
+import { Disposable, MutableDisposable, toDisposable } from 'common/Lifecycle';
 
 const PLACEHOLDER_LENGTH = 4096;
 const PLACEHOLDER_HEIGHT = 24;

addons/addon-progress/src/ProgressAddon.ts

@@ -5,7 +5,7 @@
 
 import type { Terminal, ITerminalAddon, IDisposable } from '@xterm/xterm';
 import type { ProgressAddon as IProgressApi, IProgressState } from '@xterm/addon-progress';
-import type { Emitter, Event } from 'vs/base/common/event';
+import type { Emitter, IEvent } from 'common/Event';
 
 
 const enum ProgressType {
@@ -39,7 +39,7 @@ export class ProgressAddon implements ITerminalAddon, IProgressApi {
   private _pr = 0;
   // HACK: This uses ! to align with the API, this should be fixed when 5283 is resolved
   private _onChange!: Emitter<IProgressState>;
-  public onChange!: Event<IProgressState>;
+  public onChange!: IEvent<IProgressState>;
 
   public dispose(): void {
     this._seqHandler?.dispose();

addons/addon-progress/src/tsconfig.json

@@ -15,6 +15,9 @@
       "../../../node_modules/@types/mocha"
     ],
     "paths": {
+      "common/*": [
+        "../../../src/common/*"
+      ],
       "browser/*": [
         "../../../src/browser/*"
       ],
@@ -34,6 +37,9 @@
     {
       "path": "../../../src/browser"
     },
+    {
+      "path": "../../../src/common"
+    },
     {
       "path": "../../../src/vs"
     }

addons/addon-search/src/DecorationManager.ts

@@ -5,7 +5,7 @@
 
 import type { Terminal, IDisposable, IDecoration } from '@xterm/xterm';
 import type { ISearchDecorationOptions } from '@xterm/addon-search';
-import { dispose, Disposable, toDisposable } from 'vs/base/common/lifecycle';
+import { dispose, Disposable, toDisposable } from 'common/Lifecycle';
 import type { ISearchResult } from './SearchEngine';
 
 /**

addons/addon-search/src/SearchAddon.ts

@@ -5,9 +5,9 @@
 
 import type { Terminal, IDisposable, ITerminalAddon } from '@xterm/xterm';
 import type { SearchAddon as ISearchApi, ISearchOptions, ISearchAddonOptions, ISearchResultChangeEvent } from '@xterm/addon-search';
-import { Emitter, Event } from 'vs/base/common/event';
-import { Disposable, MutableDisposable, toDisposable } from 'vs/base/common/lifecycle';
-import { disposableTimeout } from 'vs/base/common/async';
+import { Emitter, type IEvent } from 'common/Event';
+import { Disposable, MutableDisposable, toDisposable } from 'common/Lifecycle';
+import { disposableTimeout } from 'common/Async';
 import { SearchLineCache } from './SearchLineCache';
 import { SearchState } from './SearchState';
 import { SearchEngine, type ISearchResult } from './SearchEngine';
@@ -47,7 +47,7 @@ export class SearchAddon extends Disposable implements ITerminalAddon, ISearchAp
   private readonly _onBeforeSearch = this._register(new Emitter<void>());
   public readonly onBeforeSearch = this._onBeforeSearch.event;
 
-  public get onDidChangeResults(): Event<ISearchResultChangeEvent> {
+  public get onDidChangeResults(): IEvent<ISearchResultChangeEvent> {
     return this._resultTracker.onDidChangeResults;
   }
 

addons/addon-search/src/SearchEngine.test.ts

@@ -7,7 +7,7 @@ import { SearchEngine } from './SearchEngine';
 import { SearchLineCache } from './SearchLineCache';
 import { Terminal } from 'browser/public/Terminal';
 import type { ISearchOptions } from '@xterm/addon-search';
-import { DisposableStore } from 'vs/base/common/lifecycle';
+import { DisposableStore } from 'common/Lifecycle';
 
 function writeP(terminal: Terminal, data: string): Promise<void> {
   return new Promise(r => terminal.write(data, r));

addons/addon-search/src/SearchLineCache.test.ts

@@ -5,7 +5,7 @@
 import { assert } from 'chai';
 import { SearchLineCache, LineCacheEntry } from './SearchLineCache';
 import { Terminal } from 'browser/public/Terminal';
-import { timeout } from 'vs/base/common/async';
+import { timeout } from 'common/Async';
 
 function writeP(terminal: Terminal, data: string): Promise<void> {
   return new Promise(r => terminal.write(data, r));

addons/addon-search/src/SearchLineCache.ts

@@ -4,8 +4,8 @@
  */
 
 import type { Terminal } from '@xterm/xterm';
-import { combinedDisposable, Disposable, MutableDisposable, toDisposable } from 'vs/base/common/lifecycle';
-import { disposableTimeout } from 'vs/base/common/async';
+import { combinedDisposable, Disposable, MutableDisposable, toDisposable } from 'common/Lifecycle';
+import { disposableTimeout } from 'common/Async';
 
 export type LineCacheEntry = [
   /**

addons/addon-search/src/SearchResultTracker.ts

@@ -5,8 +5,8 @@
 
 import type { ISearchResultChangeEvent } from '@xterm/addon-search';
 import type { IDisposable } from '@xterm/xterm';
-import { Emitter, Event } from 'vs/base/common/event';
-import { Disposable } from 'vs/base/common/lifecycle';
+import { Emitter, type IEvent } from 'common/Event';
+import { Disposable } from 'common/Lifecycle';
 import type { ISearchResult } from './SearchEngine';
 
 /**
@@ -25,7 +25,7 @@ export class SearchResultTracker extends Disposable {
   private _selectedDecoration: ISelectedDecoration | undefined;
 
   private readonly _onDidChangeResults = this._register(new Emitter<ISearchResultChangeEvent>());
-  public get onDidChangeResults(): Event<ISearchResultChangeEvent> { return this._onDidChangeResults.event; }
+  public get onDidChangeResults(): IEvent<ISearchResultChangeEvent> { return this._onDidChangeResults.event; }
 
   /**
    * Gets the current search results.

addons/addon-webgl/src/WebglRenderer.ts

@@ -23,7 +23,7 @@ import { IWebGL2RenderingContext, type ITextureAtlas } from './Types';
 import { LinkRenderLayer } from './renderLayer/LinkRenderLayer';
 import { IRenderLayer } from './renderLayer/Types';
 import { Emitter, EventUtils } from 'common/Event';
-import { addDisposableListener } from 'vs/base/browser/dom';
+import { addDisposableListener } from 'browser/Dom';
 import { combinedDisposable, Disposable, MutableDisposable, toDisposable } from 'common/Lifecycle';
 import { createRenderDimensions } from 'browser/renderer/shared/RendererUtils';
 

src/browser/AccessibilityManager.ts

@@ -10,7 +10,7 @@ import { Disposable, toDisposable } from 'common/Lifecycle';
 import { ICoreBrowserService, IRenderService } from 'browser/services/Services';
 import { IBuffer } from 'common/buffer/Types';
 import { IInstantiationService } from 'common/services/Services';
-import { addDisposableListener } from 'vs/base/browser/dom';
+import { addDisposableListener } from 'browser/Dom';
 
 const MAX_ROWS_TO_READ = 20;
 

src/browser/CoreBrowserTerminal.ts

@@ -56,7 +56,7 @@ import { WindowsOptionsReportType } from '../common/InputHandler';
 import { AccessibilityManager } from './AccessibilityManager';
 import { Linkifier } from './Linkifier';
 import { Emitter, EventUtils, type IEvent } from 'common/Event';
-import { addDisposableListener } from 'vs/base/browser/dom';
+import { addDisposableListener } from 'browser/Dom';
 import { MutableDisposable, toDisposable } from 'common/Lifecycle';
 
 export class CoreBrowserTerminal extends CoreTerminal implements ITerminal {

src/browser/Dom.ts

@@ -0,0 +1,131 @@
+/**
+ * Copyright (c) 2026 The xterm.js authors. All rights reserved.
+ * @license MIT
+ *
+ * Minimal DOM helpers for xterm.js browser code.
+ */
+
+import { IDisposable } from 'common/Lifecycle';
+
+export function getWindow(e: Node | UIEvent | undefined | null): Window {
+  const candidateNode = e as Node | undefined | null;
+  if (candidateNode?.ownerDocument?.defaultView) {
+    return candidateNode.ownerDocument.defaultView;
+  }
+
+  const candidateEvent = e as UIEvent | undefined | null;
+  if (candidateEvent?.view) {
+    return candidateEvent.view;
+  }
+
+  return window;
+}
+
+class DomListener implements IDisposable {
+  private _handler: ((e: any) => void) | null;
+  private _node: EventTarget | null;
+  private readonly _type: string;
+  private readonly _options: boolean | AddEventListenerOptions | undefined;
+
+  constructor(node: EventTarget, type: string, handler: (e: any) => void, options?: boolean | AddEventListenerOptions) {
+    this._node = node;
+    this._type = type;
+    this._handler = handler;
+    this._options = options;
+    node.addEventListener(type, handler, options);
+  }
+
+  public dispose(): void {
+    if (!this._node || !this._handler) {
+      return;
+    }
+    this._node.removeEventListener(this._type, this._handler, this._options);
+    this._node = null;
+    this._handler = null;
+  }
+}
+
+export function addDisposableListener<K extends keyof GlobalEventHandlersEventMap>(node: EventTarget, type: K, handler: (event: GlobalEventHandlersEventMap[K]) => void, useCapture?: boolean): IDisposable;
+export function addDisposableListener(node: EventTarget, type: string, handler: (event: any) => void, useCapture?: boolean): IDisposable;
+export function addDisposableListener(node: EventTarget, type: string, handler: (event: any) => void, options: AddEventListenerOptions): IDisposable;
+export function addDisposableListener(node: EventTarget, type: string, handler: (event: any) => void, useCaptureOrOptions?: boolean | AddEventListenerOptions): IDisposable {
+  return new DomListener(node, type, handler, useCaptureOrOptions);
+}
+
+class AnimationFrameQueueItem implements IDisposable {
+  private _canceled = false;
+
+  constructor(private readonly _runner: () => void, public priority: number) {
+  }
+
+  public dispose(): void {
+    this._canceled = true;
+  }
+
+  public execute(): void {
+    if (this._canceled) {
+      return;
+    }
+    try {
+      this._runner();
+    } catch (e) {
+      console.error(e);
+    }
+  }
+
+  public static sort(a: AnimationFrameQueueItem, b: AnimationFrameQueueItem): number {
+    return b.priority - a.priority;
+  }
+}
+
+interface IWindowAnimationFrameState {
+  next: AnimationFrameQueueItem[];
+  current: AnimationFrameQueueItem[];
+  animFrameRequested: boolean;
+  inAnimationFrameRunner: boolean;
+}
+
+const animationFrameState = new Map<Window, IWindowAnimationFrameState>();
+
+function getAnimationFrameState(targetWindow: Window): IWindowAnimationFrameState {
+  let state = animationFrameState.get(targetWindow);
+  if (!state) {
+    state = {
+      next: [],
+      current: [],
+      animFrameRequested: false,
+      inAnimationFrameRunner: false
+    };
+    animationFrameState.set(targetWindow, state);
+  }
+  return state;
+}
+
+function animationFrameRunner(targetWindow: Window): void {
+  const state = getAnimationFrameState(targetWindow);
+  state.animFrameRequested = false;
+
+  state.current = state.next;
+  state.next = [];
+
+  state.inAnimationFrameRunner = true;
+  while (state.current.length > 0) {
+    state.current.sort(AnimationFrameQueueItem.sort);
+    const top = state.current.shift()!;
+    top.execute();
+  }
+  state.inAnimationFrameRunner = false;
+}
+
+export function scheduleAtNextAnimationFrame(targetWindow: Window, runner: () => void, priority: number = 0): IDisposable {
+  const state = getAnimationFrameState(targetWindow);
+  const item = new AnimationFrameQueueItem(runner, priority);
+  state.next.push(item);
+
+  if (!state.animFrameRequested) {
+    state.animFrameRequested = true;
+    targetWindow.requestAnimationFrame(() => animationFrameRunner(targetWindow));
+  }
+
+  return item;
+}

src/browser/Linkifier.ts

@@ -9,7 +9,7 @@ import { IDisposable } from 'common/Types';
 import { IBufferService } from 'common/services/Services';
 import { ILinkProviderService, IMouseService, IRenderService } from './services/Services';
 import { Emitter } from 'common/Event';
-import { addDisposableListener } from 'vs/base/browser/dom';
+import { addDisposableListener } from 'browser/Dom';
 
 export class Linkifier extends Disposable implements ILinkifier2 {
   public get currentLink(): ILinkWithState | undefined { return this._currentLink; }

src/browser/Viewport.ts

@@ -8,7 +8,7 @@ import { ViewportConstants } from 'browser/shared/Constants';
 import { Disposable, toDisposable } from 'common/Lifecycle';
 import { IBufferService, ICoreMouseService, IOptionsService } from 'common/services/Services';
 import { CoreMouseEventType } from 'common/Types';
-import { addDisposableListener, scheduleAtNextAnimationFrame } from 'vs/base/browser/dom';
+import { addDisposableListener, scheduleAtNextAnimationFrame } from 'browser/Dom';
 import { SmoothScrollableElement } from 'vs/base/browser/ui/scrollbar/scrollableElement';
 import type { ScrollableElementChangeOptions } from 'vs/base/browser/ui/scrollbar/scrollableElementOptions';
 import { Emitter, EventUtils } from 'common/Event';

src/browser/renderer/dom/DomRenderer.ts

@@ -15,7 +15,7 @@ import { color } from 'common/Color';
 import { Disposable, toDisposable } from 'common/Lifecycle';
 import { IBufferService, ICoreService, IInstantiationService, IOptionsService } from 'common/services/Services';
 import { Emitter } from 'common/Event';
-import { addDisposableListener } from 'vs/base/browser/dom';
+import { addDisposableListener } from 'browser/Dom';
 
 
 const TERMINAL_CLASS_PREFIX = 'xterm-dom-renderer-owner-';

src/browser/services/CoreBrowserService.ts

@@ -5,7 +5,7 @@
 
 import { ICoreBrowserService } from './Services';
 import { Emitter, EventUtils } from 'common/Event';
-import { addDisposableListener } from 'vs/base/browser/dom';
+import { addDisposableListener } from 'browser/Dom';
 import { Disposable, MutableDisposable, toDisposable } from 'common/Lifecycle';
 
 export class CoreBrowserService extends Disposable implements ICoreBrowserService {

src/browser/services/MouseService.ts

@@ -3,7 +3,7 @@
  * @license MIT
  */
 
-import { getWindow } from 'vs/base/browser/dom';
+import { getWindow } from 'browser/Dom';
 import { ICharSizeService, IRenderService, IMouseService } from './Services';
 import { getCoords, getCoordsRelativeToElement } from 'browser/input/Mouse';
 

src/common/Async.ts

@@ -0,0 +1,33 @@
+/**
+ * Copyright (c) 2026 The xterm.js authors. All rights reserved.
+ * @license MIT
+ *
+ * Minimal async helpers for xterm.js core.
+ */
+
+import { DisposableStore, IDisposable, toDisposable } from 'common/Lifecycle';
+
+export function timeout(millis: number): Promise<void> {
+  return new Promise(resolve => setTimeout(resolve, millis));
+}
+
+/**
+ * Creates a timeout that can be disposed using its returned value.
+ * @param handler The timeout handler.
+ * @param timeout An optional timeout in milliseconds.
+ * @param store An optional {@link DisposableStore} that will have the timeout disposable managed
+ * automatically.
+ */
+export function disposableTimeout(handler: () => void, timeout = 0, store?: DisposableStore): IDisposable {
+  const timer = setTimeout(() => {
+    handler();
+    if (store) {
+      disposable.dispose();
+    }
+  }, timeout);
+  const disposable = toDisposable(() => {
+    clearTimeout(timer);
+  });
+  store?.add(disposable);
+  return disposable;
+}