puppeteer-core
Version:
A high-level API to control headless Chrome over the DevTools Protocol
92 lines • 2.13 kB
JavaScript
/**
* @license
* Copyright 2017 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import { assert } from '../util/assert.js';
/**
* Dialog instances are dispatched by the {@link Page} via the `dialog` event.
*
* @remarks
*
* @example
*
* ```ts
* import puppeteer from 'puppeteer';
*
* (async () => {
* const browser = await puppeteer.launch();
* const page = await browser.newPage();
* page.on('dialog', async dialog => {
* console.log(dialog.message());
* await dialog.dismiss();
* await browser.close();
* });
* page.evaluate(() => alert('1'));
* })();
* ```
*
* @public
*/
export class Dialog {
#type;
#message;
#defaultValue;
/**
* @internal
*/
handled = false;
/**
* @internal
*/
constructor(type, message, defaultValue = '') {
this.#type = type;
this.#message = message;
this.#defaultValue = defaultValue;
}
/**
* The type of the dialog.
*/
type() {
return this.#type;
}
/**
* The message displayed in the dialog.
*/
message() {
return this.#message;
}
/**
* The default value of the prompt, or an empty string if the dialog
* is not a `prompt`.
*/
defaultValue() {
return this.#defaultValue;
}
/**
* A promise that resolves when the dialog has been accepted.
*
* @param promptText - optional text that will be entered in the dialog
* prompt. Has no effect if the dialog's type is not `prompt`.
*
*/
async accept(promptText) {
assert(!this.handled, 'Cannot accept dialog which is already handled!');
this.handled = true;
await this.handle({
accept: true,
text: promptText,
});
}
/**
* A promise which will resolve once the dialog has been dismissed
*/
async dismiss() {
assert(!this.handled, 'Cannot dismiss dialog which is already handled!');
this.handled = true;
await this.handle({
accept: false,
});
}
}
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