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/*---------------------------------------------------------------------------------------------
agentHostHeadlessTerminal.ts
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { Emitter, Event } from '../../../base/common/event.js';
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import { DeferredPromise } from '../../../base/common/async.js';
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import { Disposable, DisposableStore } from '../../../base/common/lifecycle.js';
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import type { ILogService } from '../../log/common/log.js';
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import pkg from '@xterm/headless';
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type XtermTerminal = pkg.Terminal;
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const { Terminal: XtermTerminal } = pkg;
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export interface IAgentHostHeadlessTerminalOptions {
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cols: number;
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rows: number;
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scrollback: number;
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logService: ILogService;
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terminalFactory?: (options: IXtermTerminalOptions) => XtermTerminal;
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}
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/**
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* Mirrors an agent-host PTY into xterm's interpreted terminal model.
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*
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* The mirror is intentionally internal to the agent host. Protocol-visible
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* terminal data still flows through the existing OSC 633 parser and content
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* model; this class provides terminal responses for programs that query
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* terminal state.
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*/
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export class AgentHostHeadlessTerminal extends Disposable {
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private readonly _terminal: XtermTerminal;
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private readonly _logService: ILogService;
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private readonly _onResponseData = this._register(new Emitter<string>());
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readonly onResponseData: Event<string> = this._onResponseData.event;
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private _writeBarrier: Promise<void> = Promise.resolve();
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private _isDisposed = false;
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constructor(options: IAgentHostHeadlessTerminalOptions) {
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super();
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this._logService = options.logService;