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How to use trapCapturedEvent method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactEvent.js

Source:ReactEvent.js

...115}116/**117 * Traps a top-level event by using event capturing.118 */119function trapCapturedEvent(topLevelType, handlerBaseName, onWhat) {120  capture(121    onWhat,122    handlerBaseName,123    ReactEvent.TopLevelCallbackCreator.createTopLevelCallback(topLevelType)124  );125}126/**127 * Listens to document scroll and window resize events that may change the128 * document scroll values. We store those results so as to discourage129 * application code from asking the DOM itself which could trigger additional130 * reflows.131 */132function registerDocumentScrollListener() {133  listen(window, 'scroll', function(nativeEvent) {134    if (nativeEvent.target === window) {135      BrowserEnv.refreshAuthoritativeScrollValues();136    }137  });138}139function registerDocumentResizeListener() {140  listen(window, 'resize', function(nativeEvent) {141    if (nativeEvent.target === window) {142      BrowserEnv.refreshAuthoritativeScrollValues();143    }144  });145}146/**147 * Summary of `ReactEvent` event handling:148 *149 *  - We trap low level 'top-level' events.150 *151 *  - We dedupe cross-browser event names into these 'top-level types' so that152 *    `DOMMouseScroll` or `mouseWheel` both become `topMouseWheel`.153 *154 *  - At this point we have native browser events with the top-level type that155 *    was used to catch it at the top-level.156 *157 *  - We continuously stream these native events (and their respective top-level158 *    types) to the event plugin system `EventPluginHub` and ask the plugin159 *    system if it was able to extract `AbstractEvent` objects. `AbstractEvent`160 *    objects are the events that applications actually deal with - they are not161 *    native browser events but cross-browser wrappers.162 *163 *  - When returning the `AbstractEvent` objects, `EventPluginHub` will make164 *    sure each abstract event is annotated with "dispatches", which are the165 *    sequence of listeners (and IDs) that care about the event.166 *167 *  - These `AbstractEvent` objects are fed back into the event plugin system,168 *    which in turn executes these dispatches.169 *170 * @private171 */172function listenAtTopLevel(touchNotMouse) {173  invariant(174    !_isListening,175    'listenAtTopLevel(...): Cannot setup top-level listener more than once.'176  );177  var mountAt = document;178  registerDocumentScrollListener();179  registerDocumentResizeListener();180  trapBubbledEvent(topLevelTypes.topMouseOver, 'mouseover', mountAt);181  trapBubbledEvent(topLevelTypes.topMouseDown, 'mousedown', mountAt);182  trapBubbledEvent(topLevelTypes.topMouseUp, 'mouseup', mountAt);183  trapBubbledEvent(topLevelTypes.topMouseMove, 'mousemove', mountAt);184  trapBubbledEvent(topLevelTypes.topMouseOut, 'mouseout', mountAt);185  trapBubbledEvent(topLevelTypes.topClick, 'click', mountAt);186  trapBubbledEvent(topLevelTypes.topDoubleClick, 'dblclick', mountAt);187  trapBubbledEvent(topLevelTypes.topMouseWheel, 'mousewheel', mountAt);188  if (touchNotMouse) {189    trapBubbledEvent(topLevelTypes.topTouchStart, 'touchstart', mountAt);190    trapBubbledEvent(topLevelTypes.topTouchEnd, 'touchend', mountAt);191    trapBubbledEvent(topLevelTypes.topTouchMove, 'touchmove', mountAt);192    trapBubbledEvent(topLevelTypes.topTouchCancel, 'touchcancel', mountAt);193  }194  trapBubbledEvent(topLevelTypes.topKeyUp, 'keyup', mountAt);195  trapBubbledEvent(topLevelTypes.topKeyPress, 'keypress', mountAt);196  trapBubbledEvent(topLevelTypes.topKeyDown, 'keydown', mountAt);197  trapBubbledEvent(topLevelTypes.topChange, 'change', mountAt);198  trapBubbledEvent(199    topLevelTypes.topDOMCharacterDataModified,200    'DOMCharacterDataModified',201    mountAt202  );203  // Firefox needs to capture a different mouse scroll event.204  // @see http://www.quirksmode.org/dom/events/tests/scroll.html205  trapBubbledEvent(topLevelTypes.topMouseWheel, 'DOMMouseScroll', mountAt);206  // IE < 9 doesn't support capturing so just trap the bubbled event there.207  if (isEventSupported('scroll', true)) {208    trapCapturedEvent(topLevelTypes.topScroll, 'scroll', mountAt);209  } else {210    trapBubbledEvent(topLevelTypes.topScroll, 'scroll', window);211  }212  if (isEventSupported('focus', true)) {213    trapCapturedEvent(topLevelTypes.topFocus, 'focus', mountAt);214    trapCapturedEvent(topLevelTypes.topBlur, 'blur', mountAt);215  } else if (isEventSupported('focusin')) {216    // IE has `focusin` and `focusout` events which bubble.217    // @see http://www.quirksmode.org/blog/archives/2008/04/delegating_the.html218    trapBubbledEvent(topLevelTypes.topFocus, 'focusin', mountAt);219    trapBubbledEvent(topLevelTypes.topBlur, 'focusout', mountAt);220  }221}222/**223 * This is the heart of `ReactEvent`. It simply streams the top-level native224 * events to `EventPluginHub`.225 *226 * @param {object} topLevelType Record from `EventConstants`.227 * @param {Event} nativeEvent A Standard Event with fixed `target` property.228 * @param {DOMElement} renderedTarget Element of interest to the framework....

ReactBrowserEventEmitter.js

Source:ReactBrowserEventEmitter.js

...111  for (let i = 0; i < dependencies.length; i++) {112    const dependency = dependencies[i];113    if (!(isListening.hasOwnProperty(dependency) && isListening[dependency])) {114      if (dependency === 'topScroll') {115        trapCapturedEvent('topScroll', 'scroll', mountAt);116      } else if (dependency === 'topFocus' || dependency === 'topBlur') {117        trapCapturedEvent('topFocus', 'focus', mountAt);118        trapCapturedEvent('topBlur', 'blur', mountAt);119        // to make sure blur and focus event listeners are only attached once120        isListening.topBlur = true;121        isListening.topFocus = true;122      } else if (dependency === 'topCancel') {123        if (isEventSupported('cancel', true)) {124          trapCapturedEvent('topCancel', 'cancel', mountAt);125        }126        isListening.topCancel = true;127      } else if (dependency === 'topClose') {128        if (isEventSupported('close', true)) {129          trapCapturedEvent('topClose', 'close', mountAt);130        }131        isListening.topClose = true;132      } else if (topLevelTypes.hasOwnProperty(dependency)) {133        trapBubbledEvent(dependency, topLevelTypes[dependency], mountAt);134      }135      isListening[dependency] = true;136    }137  }138}139export function isListeningToAllDependencies(registrationName, mountAt) {140  const isListening = getListeningForDocument(mountAt);141  const dependencies = registrationNameDependencies[registrationName];142  for (let i = 0; i < dependencies.length; i++) {143    const dependency = dependencies[i];...

ReactTVEventEmitter.js

Source:ReactTVEventEmitter.js

...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') {59        trapCapturedEvent('onFocus', 'focus', mountAt, handler);60      } else {61        trapCapturedEvent('onBlur', 'blur', mountAt, handler);62      }63      // to make sure blur and focus event listeners are only attached once64      isListening.blur = true;65      isListening.focus = true;66    } else if (registrationName === 'onPress') {67      trapCapturedEvent('onPress', 'keypress', mountAt, e => {68        // TODO: Separate this logic69        if (e.keyCode === 13) {70          handler();71        }72      });73    } else if (EventConstants.hasOwnProperty(registrationName)) {74      trapBubbledEvent(registrationName, dependency, mountAt, handler);75    }76    isListening[registrationName] = true;77  }78}...

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.trapCapturedEvent('page', 'load');7  await page.trapCapturedEvent('page', 'domcontentloaded');8  await page.trapCapturedEvent('page', 'networkidle');9  await page.trapCapturedEvent('page', 'request');10  await page.trapCapturedEvent('page', 'response');11  await page.trapCapturedEvent('page', 'requestfailed');12  await page.trapCapturedEvent('page', 'requestfinished');13  await page.trapCapturedEvent('page', 'framenavigated');14  await page.trapCapturedEvent('page', 'dialog');15  await page.trapCapturedEvent('page', 'console');16  await page.trapCapturedEvent('page', 'download');17  await page.trapCapturedEvent('page', 'video');18  await page.trapCapturedEvent('page', 'workercreated');19  await page.trapCapturedEvent('page', 'workerdestroyed');20  await page.trapCapturedEvent('page', 'crash');21  await page.trapCapturedEvent('page', 'close');22  await page.trapCapturedEvent('page', 'popup');23  await page.trapCapturedEvent('page', 'webworker');24  await page.trapCapturedEvent('page', 'bindingcalled');25  await page.trapCapturedEvent('page', 'filechooser');26  await page.trapCapturedEvent('page', 'frameattached');27  await page.trapCapturedEvent('page', 'framedetached');28  await page.trapCapturedEvent('page', 'framenavigated');29  await page.trapCapturedEvent('page', 'load');30  await page.trapCapturedEvent('page', 'domcontentloaded');31  await page.trapCapturedEvent('page', 'networkidle');32  await page.trapCapturedEvent('page', 'request');33  await page.trapCapturedEvent('page', 'response');34  await page.trapCapturedEvent('page', 'requestfailed');35  await page.trapCapturedEvent('page', 'requestfinished');

Using AI Code Generation

1const playwright = require('playwright');2const { trapCapturedEvent } = require('playwright/lib/server/chromium/crNetworkManager');3(async () => {4  const browser = await playwright.chromium.launch({ headless: false });5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.tracing.start({ screenshots: true, snapshots: true });8  await page.click('text="I agree"');9  await page.tracing.stop({ path: 'trace.zip' });10  await browser.close();11})();12const { helper } = require('../helper');13const { assert } = require('../helper');14const { Events } = require('../events');15const { NetworkManager, Request, Response } = require('../networkManager');16const { HeadersArray } = require('../headersArray');17class CrNetworkManager extends NetworkManager {18  constructor(client, frameManager, page) {19    super(page);20    this._client = client;21    this._frameManager = frameManager;22    this._requestIdToRequest = new Map();23    this._extraHTTPHeaders = {};24    this._userRequestInterceptionEnabled = false;25    this._protocolRequestInterceptionEnabled = false;26    this._userCacheDisabled = false;27    this._protocolCacheDisabled = false;28    this._offline = false;29    this._credentials = undefined;30    this._userRequestInterceptionEnabled = false;31    this._requestIdToRequestWillBeSentEvent = new Map();32    this._requestIdToRequestWillBeSentExtraInfoEvent = new Map();33    this._requestIdToResponseReceivedExtraInfoEvent = new Map();34    this._requestIdToInterceptionId = new Map();35    this._interceptionIdToRequest = new Map();36    this._requestIdToRequestPausedEvent = new Map();37    this._userRequestInterceptionEnabled = false;38    this._requestIdToRequestWillBeSentEvent = new Map();39    this._requestIdToRequestWillBeSentExtraInfoEvent = new Map();40    this._requestIdToResponseReceivedExtraInfoEvent = new Map();41    this._requestIdToInterceptionId = new Map();42    this._interceptionIdToRequest = new Map();

Using AI Code Generation

1const { trapCapturedEvent } = require('playwright/lib/utils/events');2const { Page } = require('playwright/lib/server/page');3Page.prototype.trapCapturedEvent = trapCapturedEvent;4const { trapCapturedEvent } = require('playwright/lib/utils/events');5const { Page } = require('playwright/lib/server/page');6Page.prototype.trapCapturedEvent = trapCapturedEvent;7const { trapCapturedEvent } = require('playwright/lib/utils/events');8const { Page } = require('playwright/lib/server/page');9Page.prototype.trapCapturedEvent = trapCapturedEvent;10const { trapCapturedEvent } = require('playwright/lib/utils/events');11const { Page } = require('playwright/lib/server/page');12Page.prototype.trapCapturedEvent = trapCapturedEvent;13const { trapCapturedEvent } = require('playwright/lib/utils/events');14const { Page } = require('playwright/lib/server/page');15Page.prototype.trapCapturedEvent = trapCapturedEvent;16const { trapCapturedEvent } = require('playwright/lib/utils/events');17const { Page } = require('playwright/lib/server/page');18Page.prototype.trapCapturedEvent = trapCapturedEvent;19const { trapCapturedEvent } = require('playwright/lib/utils/events');20const { Page } = require('playwright/lib/server/page');

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  const page = await context.newPage();6  await page.trapCapturedEvent('page', 'request');7  await page.click('text=Get started');8  const [request] = await Promise.all([9    page.waitForEvent('request'),10    page.click('text=Get started'),11  ]);12  console.log(request.url());13  await browser.close();14})();15const { chromium } = require('playwright');16(async () => {17  const browser = await chromium.launch();18  const context = await browser.newContext();19  const page = await context.newPage();20  await page.trapCapturedEvent('page', 'request');21  await page.click('text=Get started');22  const [request] = await Promise.all([23    page.waitForEvent('request'),24    page.click('text=Get started'),25  ]);26  console.log(request.url());27  await browser.close();28})();29const { chromium } = require('playwright');30(async () => {31  const browser = await chromium.launch();32  const context = await browser.newContext();33  const page = await context.newPage();34  await page.trapCapturedEvent('page', 'request');35  await page.click('text=Get started');36  const [request] = await Promise.all([37    page.waitForEvent('request'),38    page.click('text=Get started'),39  ]);40  console.log(request.url());41  await browser.close();42})();43const { chromium } = require('playwright');44(async () => {45  const browser = await chromium.launch();46  const context = await browser.newContext();47  const page = await context.newPage();

Using AI Code Generation

1const { trapCapturedEvent, getCapturedEvents } = require('playwright/lib/server/trace/recorder');2const { chromium } = require('playwright');3const fs = require('fs');4const path = require('path');5(async () => {6  const browser = await chromium.launch();7  const page = await browser.newPage();8  await page.click('text=Get started');9  await page.waitForTimeout(1000);10  const events = getCapturedEvents();11  fs.writeFileSync(path.join(__dirname, 'trace.json'), JSON.stringify(events, null, 2));12  await browser.close();13})();14  {15    "viewportSize": {16    },17    "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/88.0.4298.0 Safari/537.36",18    "permissions": {},19    "timeoutSettings": {20    },21    "viewport": {22    },

Using AI Code Generation

1const { _events } = require('playwright/lib/server/frames');2const { Page } = require('playwright/lib/server/page');3const { BrowserContext } = require('playwright/lib/server/browserContext');4const { Protocol } = require('playwright/lib/protocol/protocol');5const { helper } = require('playwright/lib/helper');6const { assert } = require('playwright/lib/helper');7const { debugLogger } = require('playwright/lib/utils/debugLogger');8const { Events } = require('playwright/lib/server/events');9const { TimeoutError } = require('playwright/lib/errors');10const { Browser } = require('playwright/lib/server/browser');11const { BrowserType } = require('playwright/lib/server/browserType');12const { BrowserServer } = require('playwright/lib/server/browserServer');13const { Connection } = require('playwright/lib/server/connection');14const { WebSocketTransport } = require('playwright/lib/server/webSocketTransport');15const { PipeTransport } = require('playwright/lib/server/pipeTransport');16const { createGuid } = require('playwright/lib/utils/utils');17const { JavaScriptDialog } = require('playwright/lib/server/dialog');18const { FileChooser } = require('playwright/lib/server/fileChooser');19const { Frame } = require('playwright/lib/server/frames');20const { ConsoleMessage } = require('playwright/lib/server/consoleMessage');21const { Worker } = require('playwright/lib/server/worker');22const { Download } = require('playwright/lib/server/download');23const { Route } = require('playwright/lib/server/route');24const { CRBrowser } = require('playwright/lib/server/chromium/crBrowser');25const { CRBrowserContext } = require('playwright/lib/server/chromium/crBrowser');26const { CRPage } = require('playwright/lib/server/chromium/crPage');27const { CRSession } = require('playwright/lib/server/chromium/crConnection');28const { CRConnection } = require('playwright/lib/server/chromium/crConnection');29const { CRNetworkManager } = require('playwright/lib/server/chromium/crNetworkManager');30const { CRNetworkManager } = require('playwright/lib/server/chromium/crNetworkManager');31const { CRPageProxy } = require('playwright/lib/server/chromium/crPage');32const { CRPageProxy } = require('playwright/lib/server/chromium/crPage');33const { CRSession

Using AI Code Generation

1const { trapCapturedEvent } = require('playwright-core/lib/server/dom');2const page = await browser.newPage();3await page.trapCapturedEvent('animationstart');4await page.trapCapturedEvent('animationend');5await page.trapCapturedEvent('animationiteration');6const { trapCapturedEvents } = require('playwright-core/lib/server/dom');7const page = await browser.newPage();8await page.trapCapturedEvents(['animationstart', 'animationend', 'animationiteration']);9const { trapEvents } = require('playwright-core/lib/server/dom');10const page = await browser.newPage();11await page.trapEvents(['animationstart', 'animationend', 'animationiteration']);12const { trapEvent } = require('playwright-core/lib/server/dom');13const page = await browser.newPage();14await page.trapEvent('animationstart');15await page.trapEvent('animationend');16await page.trapEvent('animationiteration');17const { trapEvents } = require('playwright-core/lib/server/dom');18const page = await browser.newPage();19await page.trapEvents(['animationstart', 'animationend', 'animationiteration']);20const { trapEvents } = require('playwright-core/lib/server/dom');21const page = await browser.newPage();22await page.trapEvents(['animationstart', 'animationend', 'animationiteration']);23const { trapEvents } = require('playwright-core/lib/server/dom');24const page = await browser.newPage();25await page.trapEvents(['animationstart', 'animationend', 'animationiteration']);26const { trapEvents } = require('playwright-core/lib/server/dom');27const page = await browser.newPage();28await page.trapEvents(['animationstart', 'animationend', 'animationiteration']);29const { trapEvents } = require('playwright-core/lib/server/dom');30const page = await browser.newPage();31await page.trapEvents(['animationstart', 'animationend', 'animationiteration

Using AI Code Generation

1const { trapCapturedEvent } = require('playwright/lib/utils/events');2trapCapturedEvent('click', (event, target) => {3  console.log('click event captured', { event, target });4});5const { trapCapturedEvents } = require('playwright/lib/utils/events');6trapCapturedEvents(['click', 'keydown'], (event, target) => {7  console.log('click event captured', { event, target });8});9const { trapBubblingEvent } = require('playwright/lib/utils/events');10trapBubblingEvent('click', (event, target) => {11  console.log('click event captured', { event, target });12});13const { trapBubblingEvents } = require('playwright/lib/utils/events');14trapBubblingEvents(['click', 'keydown'], (event, target) => {15  console.log('click event captured', { event, target });16});17const { trapEvent } = require('playwright/lib/utils/events');18trapEvent('click', (event, target) => {19  console.log('click event captured', { event, target });20});21const { trapEvents } = require('playwright/lib/utils/events');22trapEvents(['click', 'keydown'], (event, target) => {23  console.log('click event captured', { event, target });24});25const { trapAllEvents } = require('playwright/lib/utils/events');26trapAllEvents((event, target) => {27  console.log('click event captured', { event, target });28});29const { trapAllEvents } = require('playwright/lib/utils/events');30trapAllEvents((event, target) => {31  console.log('click event captured', { event, target });32});33const { createEvent } = require('playwright/lib/utils/events');34const click = createEvent('click', {});35console.log('click event created', click);

Using AI Code Generation

1import { trapCapturedEvent } from "playwright/lib/server/trace/recorder/recorderApp";2import { Page } from "playwright";3export class Test {4  private page: Page;5  constructor(page: Page) {6    this.page = page;7  }8  async test() {9    await this.page.tracing.start({ screenshots: true, snapshots: true });10    await this.page.tracing.stop();11  }12}13import { Test } from "./test";14import { chromium } from "playwright";15describe("test", () => {16  let browser, page;17  beforeAll(async () => {18    browser = await chromium.launch();19    page = await browser.newPage();20  });21  afterAll(async () => {22    await browser.close();23  });24  test("test", async () => {25    const test = new Test(page);26    await test.test();27  });28});29export class Test {30  private page: Page;31  constructor(page: Page) {32    this.page = page;33  }34  async test() {35    await this.page.tracing.start({ screenshots: true, snapshots: true });36    await this.page.tracing.stop();37  }38}39import { chromium } from "playwright";40import { Test } from "./test";41describe("test", () => {42  let browser, page;43  beforeAll(async () => {44    browser = await chromium.launch();45    page = await browser.newPage();46  });47  afterAll(async () => {48    await browser.close();49  });50  test("test", async () => {51    const test = new Test(page);52    await test.test();53  });54});

Playwright tutorial

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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.
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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.
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