Join the 1-day Testing & QA Summit featuring 15+ Expert Speakers.Register for FREE! Join TestMu Conference

How to use getListeningForDocument method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactBrowserEventEmitter.js

Source:ReactBrowserEventEmitter.js

...86/**87 * To ensure no conflicts with other potential React instances on the page88 */89const topListenersIDKey = '_reactListenersID' + ('' + Math.random()).slice(2);90function getListeningForDocument(mountAt: any) {91  // In IE8, `mountAt` is a host object and doesn't have `hasOwnProperty`92  // directly.93  if (!Object.prototype.hasOwnProperty.call(mountAt, topListenersIDKey)) {94    mountAt[topListenersIDKey] = reactTopListenersCounter++;95    alreadyListeningTo[mountAt[topListenersIDKey]] = {};96  }97  return alreadyListeningTo[mountAt[topListenersIDKey]];98}99/**100 * We listen for bubbled touch events on the document object.101 *102 * Firefox v8.01 (and possibly others) exhibited strange behavior when103 * mounting `onmousemove` events at some node that was not the document104 * element. The symptoms were that if your mouse is not moving over something105 * contained within that mount point (for example on the background) the106 * top-level listeners for `onmousemove` won't be called. However, if you107 * register the `mousemove` on the document object, then it will of course108 * catch all `mousemove`s. This along with iOS quirks, justifies restricting109 * top-level listeners to the document object only, at least for these110 * movement types of events and possibly all events.111 *112 * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html113 *114 * Also, `keyup`/`keypress`/`keydown` do not bubble to the window on IE, but115 * they bubble to document.116 *117 * @param {string} registrationName Name of listener (e.g. `onClick`).118 * @param {object} mountAt Container where to mount the listener119 */120export function listenTo(121  registrationName: string,122  mountAt: Document | Element,123) {124  const isListening = getListeningForDocument(mountAt);125  const dependencies = registrationNameDependencies[registrationName];126  for (let i = 0; i < dependencies.length; i++) {127    const dependency = dependencies[i];128    if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {129      switch (dependency) {130        case TOP_SCROLL:131          trapCapturedEvent(TOP_SCROLL, mountAt);132          break;133        case TOP_FOCUS:134        case TOP_BLUR:135          trapCapturedEvent(TOP_FOCUS, mountAt);136          trapCapturedEvent(TOP_BLUR, mountAt);137          // We set the flag for a single dependency later in this function,138          // but this ensures we mark both as attached rather than just one.139          isListening[TOP_BLUR] = true;140          isListening[TOP_FOCUS] = true;141          break;142        case TOP_CANCEL:143        case TOP_CLOSE:144          if (isEventSupported(getRawEventName(dependency))) {145            trapCapturedEvent(dependency, mountAt);146          }147          break;148        case TOP_INVALID:149        case TOP_SUBMIT:150        case TOP_RESET:151          // We listen to them on the target DOM elements.152          // Some of them bubble so we don't want them to fire twice.153          break;154        default:155          // By default, listen on the top level to all non-media events.156          // Media events don't bubble so adding the listener wouldn't do anything.157          const isMediaEvent = mediaEventTypes.indexOf(dependency) !== -1;158          if (!isMediaEvent) {159            trapBubbledEvent(dependency, mountAt);160          }161          break;162      }163      isListening[dependency] = true;164    }165  }166}167export function isListeningToAllDependencies(168  registrationName: string,169  mountAt: Document | Element,170) {171  const isListening = getListeningForDocument(mountAt);172  const dependencies = registrationNameDependencies[registrationName];173  for (let i = 0; i < dependencies.length; i++) {174    const dependency = dependencies[i];175    if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {176      return false;177    }178  }179  return true;180}...

ReactTVEventEmitter.js

Source:ReactTVEventEmitter.js

...14/**15 * To ensure no conflicts with other potential React instances on the page16 */17let topListenersIDKey = '_reactListenersID' + ('' + Math.random()).slice(2);18function getListeningForDocument(mountAt) {19  if (!Object.prototype.hasOwnProperty.call(mountAt, topListenersIDKey)) {20    mountAt[topListenersIDKey] = reactTopListenersCounter++;21    alreadyListeningTo[mountAt[topListenersIDKey]] = {};22  }23  return alreadyListeningTo[mountAt[topListenersIDKey]];24}25/**26 * We listen for bubbled touch events on the document object.27 *28 * Firefox v8.01 (and possibly others) exhibited strange behavior when29 * mounting `onmousemove` events at some node that was not the document30 * element. The symptoms were that if your mouse is not moving over something31 * contained within that mount point (for example on the background) the32 * top-level listeners for `onmousemove` won't be called. However, if you33 * register the `mousemove` on the document object, then it will of course34 * catch all `mousemove`s. This along with iOS quirks, justifies restricting35 * top-level listeners to the document object only, at least for these36 * movement types of events and possibly all events.37 *38 * @see http://www.quirksmode.org/blog/archives/2010/09/click_event_del.html39 *40 * @param {string} registrationName Name of listener (e.g. `onClick`).41 * @param {object} contentDocumentHandle Document which owns the container42 */43export function listenTo(registrationName, mountAt, handler) {44  const isListening = getListeningForDocument(mountAt);45  let dependency = EventConstants[registrationName];46  if (47    !(48      isListening.hasOwnProperty(registrationName) &&49      isListening[registrationName]50    )51  ) {52    if (registrationName === 'onScroll') {53      trapCapturedEvent('onScroll', 'scroll', mountAt, handler);54    } else if (55      registrationName === 'onFocus' ||56      registrationName === 'onBlur'57    ) {58      if (registrationName === 'onFocus') {...

Using AI Code Generation

1const { getListeningForDocument } = require('playwright/lib/server/browserContext');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const listeningForDocument = getListeningForDocument(page);8  console.log(listeningForDocument);9  await browser.close();10})();11const { getListeningForDocument } = require('playwright/lib/server/browserContext');12const { chromium } = require('playwright');13(async () => {14  const browser = await chromium.launch();15  const context = await browser.newContext();16  const page = await context.newPage();17  await page.waitForNavigation();18  await browser.close();19})();

Using AI Code Generation

1const { getListeningForDocument } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const document = await page.mainFrame().document();8  const listeners = getListeningForDocument(document);9  console.log(listeners);10  await browser.close();11})();

Using AI Code Generation

1const { getListeningForDocument } = require('playwright/lib/server/supplements/recorder/recorderSupplement');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  const listening = await getListeningForDocument(page, 'page');8  console.log(listening);9  await browser.close();10})();11{ 'page': { 'page.on': [ 'request' ] } }

Using AI Code Generation

1const { getListeningForDocument } = require('playwright/lib/server/supplements/recorder/recorderSupplement');2const { chromium } = require('playwright');3(async () => {4    const browser = await chromium.launch();5    const context = await browser.newContext();6    const page = await context.newPage();7    const listeningForDocument = await getListeningForDocument(page);8    console.log(listeningForDocument);9    await browser.close();10})();

Using AI Code Generation

1const { chromium } = require('playwright');2const path = require('path');3const fs = require('fs');4const { getListeningForDocument } = require('playwright/lib/server/browserContext');5(async () => {6  const browser = await chromium.launch();7  const context = await browser.newContext();8  const page = await context.newPage();9  const listeningForDocument = getListeningForDocument(page);10  listeningForDocument.on('request', (request) => {11    console.log(request.url());12  });13  await browser.close();14})();

Using AI Code Generation

1import { Playwright } from 'playwright'2const playwright = new Playwright()3const browser = await playwright.chromium.launch()4const context = await browser.newContext()5const page = await context.newPage()6const listening = await internal.getListeningForDocument()7console.log(listening)8await browser.close()9{ '0': 'load', '1': 'beforeunload', '2': 'unload', '3': 'pagehide', '4': 'visibilitychange', '5': 'DOMContentLoaded' }10const listeners = await page.evaluate(() => {11  return document._eventListeners;12});

Using AI Code Generation

1const { getListeningForDocument } = require('playwright/lib/server/dom.js');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  const document = await page.evaluateHandle(() => document);7  const listeners = await getListeningForDocument(document);8  console.log('listeners', listeners);9  await browser.close();10})();11  { type: 'keydown', useCapture: false },12  { type: 'keyup', useCapture: false },13  { type: 'keypress', useCapture: false },14  { type: 'mousedown', useCapture: false },15  { type: 'mouseup', useCapture: false },16  { type: 'click', useCapture: false },17  { type: 'dblclick', useCapture: false },18  { type: 'mousemove', useCapture: false },19  { type: 'mouseover', useCapture: false },20  { type: 'mouseout', useCapture: false },21  { type: 'wheel', useCapture: false },22  { type: 'touchstart', useCapture: false },23  { type: 'touchend', useCapture: false },24  { type: 'touchmove', useCapture: false },25  { type: 'touchcancel', useCapture: false },26  { type: 'pointerdown', useCapture: false },27  { type: 'pointerup', useCapture: false },28  { type: 'pointercancel', useCapture: false },29  { type: 'pointermove', useCapture: false },30  { type: 'pointerover', useCapture: false },31  { type: 'pointerout', useCapture: false },32  { type: 'pointerenter', useCapture: false },33  { type: 'pointerleave', useCapture: false },34  { type: 'gotpointercapture', useCapture: false },35  { type: 'lostpointercapture', useCapture: false },36  { type: 'dragstart', useCapture: false },37  { type: 'drag', useCapture: false },38  { type: 'dragend', useCapture: false },39  { type: 'dragenter', useCapture: false },40  { type: 'dragover', use

Using AI Code Generation

1const { getListeningForDocument } = require('playwright/lib/server/browserContext');2const listeningForDocument = getListeningForDocument(document);3console.log(listeningForDocument);4const { getListeningForDocument } = require('playwright/lib/server/browserContext');5const listeningForDocument = getListeningForDocument(document);6console.log(listeningForDocument);7const { getListeningForDocument } = require('playwright/lib/server/browserContext');8const listeningForDocument = getListeningForDocument(document);9console.log(listeningForDocument);10const { getListeningForDocument } = require('playwright/lib/server/browserContext');11const listeningForDocument = getListeningForDocument(document);12console.log(listeningForDocument);13const { getListeningForDocument } = require('playwright/lib/server/browserContext');14const listeningForDocument = getListeningForDocument(document);15console.log(listeningForDocument);16const { getListeningForDocument } = require('playwright/lib/server/browserContext');17const listeningForDocument = getListeningForDocument(document);18console.log(listeningForDocument);19const { getListeningForDocument } = require('playwright/lib/server/browserContext');20const listeningForDocument = getListeningForDocument(document);21console.log(listeningForDocument);22const { getListeningForDocument } = require('playwright/lib/server/browserContext');

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.