puppeteer-core
Version:
A high-level API to control headless Chrome over the DevTools Protocol
98 lines • 2.89 kB
JavaScript
/**
* @license
* Copyright 2017 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import { _connectToBrowser } from './BrowserConnector.js';
import { customQueryHandlers, } from './CustomQueryHandler.js';
/**
* The main Puppeteer class.
*
* IMPORTANT: if you are using Puppeteer in a Node environment, you will get an
* instance of {@link PuppeteerNode} when you import or require `puppeteer`.
* That class extends `Puppeteer`, so has all the methods documented below as
* well as all that are defined on {@link PuppeteerNode}.
*
* @public
*/
export class Puppeteer {
/**
* Operations for {@link CustomQueryHandler | custom query handlers}. See
* {@link CustomQueryHandlerRegistry}.
*
* @internal
*/
static customQueryHandlers = customQueryHandlers;
/**
* Registers a {@link CustomQueryHandler | custom query handler}.
*
* @remarks
* After registration, the handler can be used everywhere where a selector is
* expected by prepending the selection string with `<name>/`. The name is only
* allowed to consist of lower- and upper case latin letters.
*
* @example
*
* ```
* import {Puppeteer}, puppeteer from 'puppeteer';
*
* Puppeteer.registerCustomQueryHandler('text', { … });
* const aHandle = await page.$('text/…');
* ```
*
* @param name - The name that the custom query handler will be registered
* under.
* @param queryHandler - The {@link CustomQueryHandler | custom query handler}
* to register.
*
* @public
*/
static registerCustomQueryHandler(name, queryHandler) {
return this.customQueryHandlers.register(name, queryHandler);
}
/**
* Unregisters a custom query handler for a given name.
*/
static unregisterCustomQueryHandler(name) {
return this.customQueryHandlers.unregister(name);
}
/**
* Gets the names of all custom query handlers.
*/
static customQueryHandlerNames() {
return this.customQueryHandlers.names();
}
/**
* Unregisters all custom query handlers.
*/
static clearCustomQueryHandlers() {
return this.customQueryHandlers.clear();
}
/**
* @internal
*/
_isPuppeteerCore;
/**
* @internal
*/
_changedBrowsers = false;
/**
* @internal
*/
constructor(settings) {
this._isPuppeteerCore = settings.isPuppeteerCore;
this.connect = this.connect.bind(this);
}
/**
* This method attaches Puppeteer to an existing browser instance.
*
* @remarks
*
* @param options - Set of configurable options to set on the browser.
* @returns Promise which resolves to browser instance.
*/
connect(options) {
return _connectToBrowser(options);
}
}
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