120 lines
2.8 KiB
TypeScript
120 lines
2.8 KiB
TypeScript
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/**
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* Copyright 2017 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import {Protocol} from 'devtools-protocol';
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import {assert} from '../util/assert.js';
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/**
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* Dialog instances are dispatched by the {@link Page} via the `dialog` event.
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*
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* @remarks
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*
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* @example
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*
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* ```ts
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* import puppeteer from 'puppeteer';
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*
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* (async () => {
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* const browser = await puppeteer.launch();
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* const page = await browser.newPage();
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* page.on('dialog', async dialog => {
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* console.log(dialog.message());
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* await dialog.dismiss();
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* await browser.close();
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* });
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* page.evaluate(() => alert('1'));
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* })();
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* ```
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*
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* @public
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*/
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export class Dialog {
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#type: Protocol.Page.DialogType;
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#message: string;
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#defaultValue: string;
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#handled = false;
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/**
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* @internal
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*/
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constructor(
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type: Protocol.Page.DialogType,
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message: string,
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defaultValue = ''
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) {
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this.#type = type;
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this.#message = message;
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this.#defaultValue = defaultValue;
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}
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/**
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* The type of the dialog.
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*/
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type(): Protocol.Page.DialogType {
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return this.#type;
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}
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/**
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* The message displayed in the dialog.
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*/
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message(): string {
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return this.#message;
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}
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/**
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* The default value of the prompt, or an empty string if the dialog
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* is not a `prompt`.
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*/
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defaultValue(): string {
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return this.#defaultValue;
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}
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/**
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* @internal
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*/
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sendCommand(_options: {accept: boolean; text?: string}): Promise<void> {
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throw new Error('Not implemented');
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}
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/**
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* A promise that resolves when the dialog has been accepted.
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*
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* @param promptText - optional text that will be entered in the dialog
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* prompt. Has no effect if the dialog's type is not `prompt`.
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*
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*/
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async accept(promptText?: string): Promise<void> {
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assert(!this.#handled, 'Cannot accept dialog which is already handled!');
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this.#handled = true;
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await this.sendCommand({
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accept: true,
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text: promptText,
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});
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}
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/**
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* A promise which will resolve once the dialog has been dismissed
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*/
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async dismiss(): Promise<void> {
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assert(!this.#handled, 'Cannot dismiss dialog which is already handled!');
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this.#handled = true;
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await this.sendCommand({
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accept: false,
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});
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}
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}
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