How can I manage multiple windows in Puppeteer?

Other Questions Puppeteer
1

I’m currently using Puppeteer for browser testing. I can navigate to a webpage and interact with it, such as clicking on a DOM element. After that, I end up in a new view where I can click a button that opens a login popup for Facebook.

My question is:

How can I manage this new window to log in to Facebook? Here is my code sample:

import * as puppeteer from 'puppeteer';

const execute = async () => {
    console.log('Starting...');

    const browserInstance = await puppeteer.launch({ headless: false });
    const currentPage = await browserInstance.newPage();
    currentPage.setViewport({ width: 1200, height: 800 });
    await currentPage.goto('https://goalgoodies.herokuapp.com').catch(error => { console.log('Navigation error: ', error); });

    await currentPage.screenshot({ path: 'initial.png' });

    await currentPage.click('a').catch(error => { console.log('Click error: ', error); });

    const loginLink = await currentPage.$('.signin a').catch(error => { console.log('Selector error: ', error); });
    await loginLink.click().catch(error => { console.log('Click error: ', error); });
    await currentPage.screenshot({ path: 'after_click.png' });

    const facebookButton = await currentPage.$('button[name=facebook]');
    await facebookButton.click();
    // this should open the Facebook login popup
    await currentPage.screenshot({ path: 'popup_opened.png' });
};
execute();

I believe Puppeteer does not allow interaction with additional windows, which is causing issues for me. Any insights on this would be greatly appreciated. Thank you!

2

To manage multiple windows in Puppeteer, you need to handle pages and popups effectively by listening for new target events. Here's a streamlined workflow to manage the new window for Facebook login:

import * as puppeteer from 'puppeteer';

const execute = async () => {
    console.log('Starting...');

    const browserInstance = await puppeteer.launch({ headless: false });
    const currentPage = await browserInstance.newPage();
    currentPage.setViewport({ width: 1200, height: 800 });
    await currentPage.goto('https://goalgoodies.herokuapp.com').catch(error => { console.log('Navigation error: ', error); });

    await currentPage.screenshot({ path: 'initial.png' });

    await currentPage.click('a').catch(error => { console.log('Click error: ', error); });

    const loginLink = await currentPage.$('.signin a').catch(error => { console.log('Selector error: ', error); });
    await loginLink.click().catch(error => { console.log('Click error: ', error); });
    await currentPage.screenshot({ path: 'after_click.png' });

    // Listen for new pages using "targetcreated"
    const newPagePromise = new Promise(x => browserInstance.once('targetcreated', target => x(target.page())));
    const facebookButton = await currentPage.$('button[name=facebook]');
    await facebookButton.click();

    // Wait for the new page to load
    const newPage = await newPagePromise;
    await newPage.waitForSelector('#email'); // Wait for email input (an example selector)

    // Perform actions on the new page
    await newPage.type('#email', '[email protected]');
    await newPage.type('#pass', 'your-password');
    await newPage.click('#loginbutton');
    await newPage.screenshot({ path: 'logged_in.png' });

    await browserInstance.close();
};

execute();

This code kicks off by listening for a new target (often triggered by clicking a popup link/button) and resolves it to a page you can interact with. Once the new page is detected, you can perform actions like entering your login credentials as shown. This technique helps streamline the interaction with new browser windows.

3

Managing multiple windows or popups in Puppeteer can indeed be tricky, but it's essential for scenarios like logging into third-party services. The key lies in detecting when a new browser target is created and then obtaining the corresponding page object. Here's an alternative approach to handle this:

import * as puppeteer from 'puppeteer';

const execute = async () => {
    console.log('Starting...');

    const browserInstance = await puppeteer.launch({ headless: false });
    const currentPage = await browserInstance.newPage();
    currentPage.setViewport({ width: 1200, height: 800 });
    await currentPage.goto('https://goalgoodies.herokuapp.com');

    await currentPage.click('a');

    const loginLink = await currentPage.$('.signin a');
    await loginLink.click();

    const newPagePromise = new Promise(resolve => 
        browserInstance.once('targetcreated', async target => {
            if (target.type() === 'page') {
                const newPage = await target.page();
                await newPage.bringToFront();
                resolve(newPage);
            }
        })
    );

    const facebookButton = await currentPage.$('button[name=facebook]');
    await facebookButton.click();

    const newPage = await newPagePromise;

    await newPage.waitForSelector('#email');
    await newPage.type('#email', '[email protected]');
    await newPage.type('#pass', 'your-password');
    await newPage.click('#loginbutton');

    console.log('Logged in!');
    await browserInstance.close();
};

execute();

This approach slightly differs by verifying the type of new target to ensure that it is indeed a page, which can help avoid errors related to other types of targets, like tabs or workers. Post detection, the new page is brought to the front for interaction.

For the new window, ensure the page loads completely before making interactions, and use appropriate selectors based on the current Facebook layout you are targeting. This method should provide a robust way to manage additional browser windows within Puppeteer.