43 lines
1.4 KiB
TypeScript
43 lines
1.4 KiB
TypeScript
/**
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* Copyright (c) 2019 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import * as puppeteer from 'puppeteer';
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import deepEqual = require('deep-equal');
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import { ITerminalOptions } from 'xterm';
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export async function pollFor<T>(page: puppeteer.Page, evalOrFn: string | (() => Promise<T>), val: T, preFn?: () => Promise<void>): Promise<void> {
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if (preFn) {
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await preFn();
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}
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const result = typeof evalOrFn === 'string' ? await page.evaluate(evalOrFn) : await evalOrFn();
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if (!deepEqual(result, val)) {
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return new Promise<void>(r => {
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setTimeout(() => r(pollFor(page, evalOrFn, val, preFn)), 1);
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});
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}
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}
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export async function writeSync(page: puppeteer.Page, data: string): Promise<void> {
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await page.evaluate(`
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window.ready = false;
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window.term.write('${data}', () => window.ready = true);
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`);
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await pollFor(page, 'window.ready', true);
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}
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export async function timeout(ms: number): Promise<void> {
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return new Promise<void>(r => setTimeout(r, ms));
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}
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export async function openTerminal(page: puppeteer.Page, options: ITerminalOptions = {}): Promise<void> {
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await page.evaluate(`window.term = new Terminal(${JSON.stringify(options)})`);
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await page.evaluate(`window.term.open(document.querySelector('#terminal-container'))`);
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if (options.rendererType === 'dom') {
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await page.waitForSelector('.xterm-rows');
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} else {
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await page.waitForSelector('.xterm-text-layer');
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}
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}
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