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How to use extractBeforeInputEvent method in Playwright Internal

Best JavaScript code snippet using playwright-internal

BeforeInputEventPlugin.js

Source:BeforeInputEventPlugin.js

...172    default:173      return null;174  }175}176function extractBeforeInputEvent(topLevelType, topLevelTarget, topLevelTargetID, nativeEvent) {177  var chars;178  if (canUseTextInputEvent) {179    chars = getNativeBeforeInputChars(topLevelType, nativeEvent);180  } else {181    chars = getFallbackBeforeInputChars(topLevelType, nativeEvent);182  }183  if (!chars) {184    return null;185  }186  var event = SyntheticInputEvent.getPooled(eventTypes.beforeInput, topLevelTargetID, nativeEvent);187  event.data = chars;188  EventPropagators.accumulateTwoPhaseDispatches(event);189  return event;190}191var BeforeInputEventPlugin = {192  eventTypes: eventTypes,193  extractEvents: function(topLevelType, topLevelTarget, topLevelTargetID, nativeEvent) {194    return [extractCompositionEvent(topLevelType, topLevelTarget, topLevelTargetID, nativeEvent), extractBeforeInputEvent(topLevelType, topLevelTarget, topLevelTargetID, nativeEvent)];195  }196};...

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.type('input[name="q"]', 'Hello World');6  await page.waitForTimeout(1000);7  await page.keyboard.down('Shift');8  await page.keyboard.press('ArrowLeft');9  await page.keyboard.up('Shift');10  await page.waitForTimeout(1000);11  const events = await page._client.send('Input.dispatchKeyEvent', {12  });13  await page.waitForTimeout(1000);14  await page.keyboard.press('Enter');15  await page.waitForTimeout(1000);16  await browser.close();17})();18const { chromium } = require('playwright');19(async () => {20  const browser = await chromium.launch();21  const page = await browser.newPage();22  await page.type('input[name="q"]', 'Hello World');23  await page.waitForTimeout(1000);24  await page.keyboard.down('Shift');25  await page.keyboard.press('ArrowLeft');26  await page.keyboard.up('Shift');27  await page.waitForTimeout(1000);28  const events = await page._client.send('Input.dispatchKeyEvent', {29  });30  await page.waitForTimeout(1000);31  await page.keyboard.press('Enter');32  await page.waitForTimeout(1000);33  await browser.close();34})();

Using AI Code Generation

1const { extractBeforeInputEvent } = require('@playwright/test/lib/server/frames');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  await page.keyboard.press('a');8  await page.keyboard.press('Backspace');9  await page.keyboard.press('b');10  const beforeInputEvent = await extractBeforeInputEvent(page);11  console.log(beforeInputEvent);12  await browser.close();13})();14{15}16await page.evaluateHandle(() => {17  const div = document.createElement('div');18  div.id = 'drag';19  document.body.appendChild(div);20});21await page.evaluateHandle(() => {22  const div = document.createElement('div');23  div.id = 'drop';24  document.body.appendChild(div);25});26const { chromium } = require('playwright');27(async () => {28  const browser = await chromium.launch();29  const context = await browser.newContext();30  const page = await context.newPage();31  await page.evaluateHandle(() => {32    const div = document.createElement('div');33    div.id = 'drag';34    document.body.appendChild(div);35  });36  await page.evaluateHandle(() => {37    const div = document.createElement('div');38    div.id = 'drop';39    document.body.appendChild(div);40  });41  await page.dragAndDrop('#drag', '#drop');42  const beforeInputEvent = await extractBeforeInputEvent(page);

Using AI Code Generation

1const { extractBeforeInputEvent } = 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 input = await page.$('input[name="q"]');7  await input.focus();8  const beforeInputEvent = extractBeforeInputEvent('hello');9  await page.evaluate((beforeInputEvent) => {10    document.execCommand('insertText', false, beforeInputEvent.data);11  }, beforeInputEvent);12  await page.screenshot({ path: 'google.png' });13  await browser.close();14})();15Error: Protocol error (DOM.dispatchEvent): Invalid parameters. at Object.dispatchError (/home/runner/work/PlaywrightTest/PlaywrightTest/node_modules/playwright/lib/server/cjs/dispatchers/dispatcher.js:179:24) at /home/runner/work/PlaywrightTest/PlaywrightTest/node_modules/playwright/lib/server/cjs/dispatchers/dispatcher.js:72:65 at async DOMDispatcher._dispatchEvent (/home/runner/work/PlaywrightTest/PlaywrightTest/node_modules/playwright/lib/server/cjs/dispatchers/domDispatcher.js:49:5) at async DOMDispatcher.dispatchEvent (/home/runner/work/PlaywrightTest/PlaywrightTest/node_modules/playwright/lib/server/cjs/dispatchers/domDispatcher.js:38:16) at async DOMDispatcher._dispatchEvent (/home/runner/work/PlaywrightTest/PlaywrightTest/node_modules/playwright/lib/server/cjs/dispatchers/domDispatcher.js:48:9) at async DOMDispatcher.dispatchEvent (/home/runner/work/PlaywrightTest/PlaywrightTest/node_modules/playwright/lib/server/cjs/dispatchers/domDispatcher.js:38:16) at async DOMDispatcher._dispatchEvent (/home/runner/work/PlaywrightTest/PlaywrightTest/node_modules/playwright/lib/server/cjs/dispatchers/domDispatcher.js:48:9) at async DOMDispatcher.dispatchEvent (/home/runner/work/PlaywrightTest/PlaywrightTest/node_modules/playwright/lib/server/cjs/dispatchers/domDispatcher.js:38:16) at async DOMDispatcher._dispatchEvent (/home/runner/work/PlaywrightTest/PlaywrightTest/node_modules/playwright/lib

Using AI Code Generation

1const { chromium } = require('playwright');2const { extractBeforeInputEvent } = require('playwright/lib/utils/keyboardLayout');3(async () => {4  const browser = await chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.keyboard.press('a');8  await page.keyboard.press('b');9  await page.keyboard.press('Backspace');10  await page.keyboard.press('c');11  await page.keyboard.press('d');12  await page.keyboard.press('Backspace');13  await page.keyboard.press('e');14  await page.keyboard.press('f');15  await page.keyboard.press('Backspace');16  const events = await page.evaluate(() => {17    return window.__playwright__keyboardEvents;18  });19  console.log(events);20  console.log(extractBeforeInputEvent(events[0]));21  console.log(extractBeforeInputEvent(events[1]));22  console.log(extractBeforeInputEvent(events[2]));23  console.log(extractBeforeInputEvent(events[3]));24  console.log(extractBeforeInputEvent(events[4]));25  console.log(extractBeforeInputEvent(events[5]));26  console.log(extractBeforeInputEvent(events[6]));27  console.log(extractBeforeInputEvent(events[7]));28  console.log(extractBeforeInputEvent(events[8]));29  console.log(extractBeforeInputEvent(events[9]));30  console.log(extractBeforeInputEvent(events[10]));31  console.log(extractBeforeInputEvent(events[11]));32  console.log(extractBeforeInputEvent(events[12]));33  console.log(extractBeforeInputEvent(events[13]));34  console.log(extractBeforeInputEvent(events[14]));35  console.log(extractBeforeInputEvent(events[15]));36  console.log(extractBeforeInputEvent(events[16]));37  console.log(extractBeforeInputEvent(events[17]));38  console.log(extractBeforeInputEvent(events[18]));39  console.log(extractBeforeInputEvent(events[19]));40  console.log(extractBeforeInputEvent(events[20]));41  console.log(extractBeforeInputEvent(events[21]));42  console.log(extractBeforeInputEvent(events[22]));43  console.log(extractBeforeInputEvent(events[23]));44  console.log(extractBeforeInputEvent(events[24]));45  console.log(extractBeforeInputEvent(events[25]));46  console.log(extractBeforeInputEvent(events[26]));

Using AI Code Generation

1const { extractBeforeInputEvent } = require('playwright/lib/internal/protocol/protocol.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 input = await page.$('input');8  await input.focus();9  await page.keyboard.type('Hello');10  const event = await extractBeforeInputEvent(page);11  console.log(event);12  await browser.close();13})();14{15}

Using AI Code Generation

1const { extractBeforeInputEvent } = require('playwright/lib/server/browserContext');2const { chromium } = require('playwright');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.evaluate(() => {8    document.querySelector('input').addEventListener('beforeinput', (event) => {9      console.log(event);10    });11  });12  await page.click('text=Get started');13  await page.fill('input', 'Hello');

Using AI Code Generation

1If you want to extract the code to a separate folder and then import it, you can use the following command:2npx playwright codegen --target=escodegen --output=code --import=code3import { extractBeforeInputEvent } from "./code/index.js";4import { extractBeforeInputEvent } from "./code/index.js";5If you want to extract the code to a separate folder and then import it, you can use the following command:6npx playwright codegen --target=escodegen --output=code --import

Using AI Code Generation

1const { extractBeforeInputEvent } = require('playwright/lib/server/frames');2const frame = await page.mainFrame();3const element = await frame.$('input');4const event = await extractBeforeInputEvent(element, 'foo');5console.log(event);6await element.press('Enter');7{ type: 'insertText',8  cancelable: true }9const { extractBeforeInputEvent } = require('playwright/lib/server/frames');10const frame = await page.mainFrame();11const element = await frame.$('input');12const event = await extractBeforeInputEvent(element, 'foo');13await page.evaluate((event) => {14  document.querySelector('input').dispatchEvent(new InputEvent('beforeinput', event));15}, event);16await element.press('Enter');

Using AI Code Generation

1const { extractBeforeInputEvent } = require('playwright/lib/server/frames');2const { events } = extractBeforeInputEvent('hello');3const { extractBeforeInputEvent } = require('playwright/lib/server/frames');4const { events } = extractBeforeInputEvent('hello');5const { extractBeforeInputEvent } = require('playwright/lib/server/frames');6const { events } = extractBeforeInputEvent('hello');7const { extractBeforeInputEvent } = require('playwright/lib/server/frames');8const { events } = extractBeforeInputEvent('hello');9const { extractBeforeInputEvent } = require('playwright/lib/server/frames');10const { events } = extractBeforeInputEvent('hello');11const { extractBeforeInputEvent } = require('playwright/lib/server/frames');12const { events } = extractBeforeInputEvent('hello');13const { extractBeforeInputEvent } = require('playwright/lib/server/frames');14const { events } = extractBeforeInputEvent('hello');15const { extractBeforeInputEvent } = require('playwright/lib/server/frames');16const { events } = extractBeforeInputEvent('hello');17const { extractBeforeInputEvent } = require('playwright/lib/server/frames');18const { events } = extractBeforeInputEvent('hello');19const { extractBeforeInputEvent } = require('playwright/lib/server/frames');20const { events } = extractBeforeInputEvent('hello');21const { extractBeforeInputEvent } = require('playwright/lib/server/frames');22const { events } = extractBeforeInputEvent('hello');23const { extractBeforeInputEvent } = require('playwright/lib

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