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How to use finishEventHandler method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactGenericBatching.js

Source:ReactGenericBatching.js

...25let flushDiscreteUpdatesImpl = function() {};26let batchedEventUpdatesImpl = batchedUpdatesImpl;27let isInsideEventHandler = false;28let isBatchingEventUpdates = false;29function finishEventHandler() {30  // Here we wait until all updates have propagated, which is important31  // when using controlled components within layers:32  // https://github.com/facebook/react/issues/169833  // Then we restore state of any controlled component.34  const controlledComponentsHavePendingUpdates = needsStateRestore();35  if (controlledComponentsHavePendingUpdates) {36    // If a controlled event was fired, we may need to restore the state of37    // the DOM node back to the controlled value. This is necessary when React38    // bails out of the update without touching the DOM.39    flushDiscreteUpdatesImpl();40    restoreStateIfNeeded();41  }42}43export function batchedUpdates(fn, bookkeeping) {44  if (isInsideEventHandler) {45    // If we are currently inside another batch, we need to wait until it46    // fully completes before restoring state.47    return fn(bookkeeping);48  }49  isInsideEventHandler = true;50  try {51    return batchedUpdatesImpl(fn, bookkeeping);52  } finally {53    isInsideEventHandler = false;54    finishEventHandler();55  }56}57export function batchedEventUpdates(fn, a, b) {58  if (isBatchingEventUpdates) {59    // If we are currently inside another batch, we need to wait until it60    // fully completes before restoring state.61    return fn(a, b);62  }63  isBatchingEventUpdates = true;64  try {65    return batchedEventUpdatesImpl(fn, a, b);66  } finally {67    isBatchingEventUpdates = false;68    finishEventHandler();69  }70}71// This is for the React Flare event system72export function executeUserEventHandler(fn: any => void, value: any): void {73  const previouslyInEventHandler = isInsideEventHandler;74  try {75    isInsideEventHandler = true;76    const type = typeof value === 'object' && value !== null ? value.type : '';77    invokeGuardedCallbackAndCatchFirstError(type, fn, undefined, value);78  } finally {79    isInsideEventHandler = previouslyInEventHandler;80  }81}82export function discreteUpdates(fn, a, b, c, d) {83  const prevIsInsideEventHandler = isInsideEventHandler;84  isInsideEventHandler = true;85  try {86    return discreteUpdatesImpl(fn, a, b, c, d);87  } finally {88    isInsideEventHandler = prevIsInsideEventHandler;89    if (!isInsideEventHandler) {90      finishEventHandler();91    }92  }93}94let lastFlushedEventTimeStamp = 0;95export function flushDiscreteUpdatesIfNeeded(timeStamp: number) {96  // event.timeStamp isn't overly reliable due to inconsistencies in97  // how different browsers have historically provided the time stamp.98  // Some browsers provide high-resolution time stamps for all events,99  // some provide low-resolution time stamps for all events. FF < 52100  // even mixes both time stamps together. Some browsers even report101  // negative time stamps or time stamps that are 0 (iOS9) in some cases.102  // Given we are only comparing two time stamps with equality (!==),103  // we are safe from the resolution differences. If the time stamp is 0104  // we bail-out of preventing the flush, which can affect semantics,...

ReactDOMUpdateBatching.js

Source:ReactDOMUpdateBatching.js

...12  var flushDiscreteUpdatesImpl = function () {};13  var batchedEventUpdatesImpl = batchedUpdatesImpl;14  var isInsideEventHandler = false;15  var isBatchingEventUpdates = false;16  function finishEventHandler() {17    // Here we wait until all updates have propagated, which is important18    // when using controlled components within layers:19    // https://github.com/facebook/react/issues/169820    // Then we restore state of any controlled component.21    var controlledComponentsHavePendingUpdates = needsStateRestore();22    if (controlledComponentsHavePendingUpdates) {23      // If a controlled event was fired, we may need to restore the state of24      // the DOM node back to the controlled value. This is necessary when React25      // bails out of the update without touching the DOM.26      flushDiscreteUpdatesImpl();27      restoreStateIfNeeded();28    }29  }30  function batchedUpdates(fn, bookkeeping) {31    if (isInsideEventHandler) {32      // If we are currently inside another batch, we need to wait until it33      // fully completes before restoring state.34      return fn(bookkeeping);35    }36    isInsideEventHandler = true;37    try {38      return batchedUpdatesImpl(fn, bookkeeping);39    } finally {40      isInsideEventHandler = false;41      finishEventHandler();42    }43  }44  function batchedEventUpdates(fn, a, b) {45    if (isBatchingEventUpdates) {46      // If we are currently inside another batch, we need to wait until it47      // fully completes before restoring state.48      return fn(a, b);49    }50    isBatchingEventUpdates = true;51    try {52      return batchedEventUpdatesImpl(fn, a, b);53    } finally {54      isBatchingEventUpdates = false;55      finishEventHandler();56    }57  }58  function discreteUpdates(fn, a, b, c, d) {59    var prevIsInsideEventHandler = isInsideEventHandler;60    isInsideEventHandler = true;61    try {62      return discreteUpdatesImpl(fn, a, b, c, d);63    } finally {64      isInsideEventHandler = prevIsInsideEventHandler;65      if (!isInsideEventHandler) {66        finishEventHandler();67      }68    }69  }70  function flushDiscreteUpdatesIfNeeded(timeStamp) {71    {72      if (!isInsideEventHandler) {73        flushDiscreteUpdatesImpl();74      }75    }76  }77  function setBatchingImplementation(_batchedUpdatesImpl, _discreteUpdatesImpl, _flushDiscreteUpdatesImpl, _batchedEventUpdatesImpl) {78    batchedUpdatesImpl = _batchedUpdatesImpl;79    discreteUpdatesImpl = _discreteUpdatesImpl;80    flushDiscreteUpdatesImpl = _flushDiscreteUpdatesImpl;...

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  const [request1] = await Promise.all([7    page.waitForRequest('**/api/'),8    page.click('#login')9  ]);10  console.log(request1.url());11  await browser.close();12})();

Using AI Code Generation

1const { finishEventHandler } = require('playwright/lib/utils/events');2const { chromium } = require('playwright');3(async () => {4  const browser = await chromium.launch();5  const page = await browser.newPage();6  await page.click('text="Get started"');7  await page.waitForSelector('.navbar__inner .navbar__title');8  await finishEventHandler();9  await browser.close();10})();11const { finishEventHandler } = require('playwright-finish-event-handler');12await finishEventHandler();13const { chromium } = require('playwright');14const { finishEventHandler } = require('playwright-finish-event-handler');15(async () => {16  const browser = await chromium.launch();17  const page = await browser.newPage();18  await page.click('text="Get started"');19  await page.waitForSelector('.navbar__inner .navbar__title');20  await finishEventHandler();21  await browser.close();22})();23[MIT](LICENSE)

Using AI Code Generation

1const { _electron } = require('playwright');2const { app } = require('electron');3const { finishEventHandler } = _electron;4const path = require('path');5app.on('ready', () => {6  const win = new BrowserWindow({ width: 800, height: 600 });7  win.loadFile(path.join(__dirname, 'index.html'));8  win.webContents.on('did-finish-load', () => {9    finishEventHandler(win.webContents, 'did-finish-load');10  });11});12### `finishEventHandler(webContents, eventName)`13const { _electron } = require('playwright');14const { app } = require('electron');15const { finishEventHandler } = _electron;16const path = require('path');17app.on('ready', () => {18  const win = new BrowserWindow({ width: 800, height: 600 });19  win.loadFile(path.join(__dirname, 'index.html'));20  win.webContents.on('did-finish-load', () => {21    finishEventHandler(win.webContents, 'did-finish-load');22  });23});24### `setBrowserWindowConstructor(browserWindowConstructor)`25const { _electron } = require('playwright');26const { app } = require('electron');27const { setBrowserWindowConstructor } = _electron;28const path = require('path');29setBrowserWindowConstructor((options) => new BrowserWindow(options));30app.on('ready', () => {31  const win = new BrowserWindow({ width: 800, height: 600 });32  win.loadFile(path.join(__dirname, 'index.html'));33});34### `setBrowserWindowProxyConstructor(browserWindowProxyConstructor)`

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.waitForLoadState('networkidle');6  await page.screenshot({ path: `example.png` });7  await browser.close();8})();

Using AI Code Generation

1const { chromium } = require('playwright');2const { finishEventHandler } = require('playwright/lib/server/supplements/recorder/recorderSupplement');3(async () => {4  const browser = await chromium.launch({ headless: false });5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.fill('input[name="q"]', 'Hello World!');8  await page.click('text=Google Search');9  await finishEventHandler(page);10  await page.screenshot({ path: `example.png` });11  await browser.close();12})();13![Playwright Recorder](./recorder.png)14const { chromium } = require('playwright');15(async () => {16  const browser = await chromium.launch({ headless: false });17  const context = await browser.newContext();18  const page = await context.newPage();19  await page.fill('input[name="q"]', 'Hello World!');20  await page.click('text=Google Search');21  await page.screenshot({ path: `example.png` });22  await browser.close();23})();24const { test, expect } = require('@playwright/test');25test('basic test', async ({ page }) => {26  const title = page.locator('input[name="q"]');27  await expect(title).toHaveValue('Hello World!');28});

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.waitForSelector('#myid');6  await browser.close();7})();8### `page.waitForSelector(selector[, options])`

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