How to use handleTopLevelImpl method in Playwright Internal

Best JavaScript code snippet using playwright-internal

ReactEventTopLevelCallback.js

Source: ReactEventTopLevelCallback.js Github

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...53 * @param {string} topLevelType54 * @param {DOMEvent} nativeEvent55 * @param {TopLevelCallbackBookKeeping} bookKeeping56 */​57function handleTopLevelImpl(topLevelType, nativeEvent, bookKeeping) {58 var topLevelTarget = ReactMount.getFirstReactDOM(59 getEventTarget(nativeEvent)60 ) || window;61 /​/​ Loop through the hierarchy, in case there's any nested components.62 /​/​ It's important that we build the array of ancestors before calling any63 /​/​ event handlers, because event handlers can modify the DOM, leading to64 /​/​ inconsistencies with ReactMount's node cache. See #1105.65 var ancestor = topLevelTarget;66 while (ancestor) {67 bookKeeping.ancestors.push(ancestor);68 ancestor = findParent(ancestor);69 }70 for (var i = 0, l = bookKeeping.ancestors.length; i < l; i++) {71 topLevelTarget = bookKeeping.ancestors[i];72 var topLevelTargetID = ReactMount.getID(topLevelTarget) || '';73 ReactEventEmitter.handleTopLevel(74 topLevelType,75 topLevelTarget,76 topLevelTargetID,77 nativeEvent78 );79 }80}81/​/​ Used to store ancestor hierarchy in top level callback82function TopLevelCallbackBookKeeping() {83 this.ancestors = [];84}85mixInto(TopLevelCallbackBookKeeping, {86 destructor: function() {87 this.ancestors.length = 0;88 }89});90PooledClass.addPoolingTo(TopLevelCallbackBookKeeping);91/​**92 * Top-level callback creator used to implement event handling using delegation.93 * This is used via dependency injection.94 */​95var ReactEventTopLevelCallback = {96 /​**97 * Sets whether or not any created callbacks should be enabled.98 *99 * @param {boolean} enabled True if callbacks should be enabled.100 */​101 setEnabled: function(enabled) {102 _topLevelListenersEnabled = !!enabled;103 },104 /​**105 * @return {boolean} True if callbacks are enabled.106 */​107 isEnabled: function() {108 return _topLevelListenersEnabled;109 },110 /​**111 * Creates a callback for the supplied `topLevelType` that could be added as112 * a listener to the document. The callback computes a `topLevelTarget` which113 * should be the root node of a mounted React component where the listener114 * is attached.115 *116 * @param {string} topLevelType Record from `EventConstants`.117 * @return {function} Callback for handling top-level events.118 */​119 createTopLevelCallback: function(topLevelType) {120 return function(nativeEvent) {121 if (!_topLevelListenersEnabled) {122 return;123 }124 var bookKeeping = TopLevelCallbackBookKeeping.getPooled();125 try {126 handleTopLevelImpl(topLevelType, nativeEvent, bookKeeping);127 } finally {128 TopLevelCallbackBookKeeping.release(bookKeeping);129 }130 };131 }132};...

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ReactEventListener.js

Source: ReactEventListener.js Github

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...27 this.nativeEvent = null;28 this.ancestors.length = 0;29 }});30 PooledClass.addPoolingTo(TopLevelCallbackBookKeeping, PooledClass.twoArgumentPooler);31 function handleTopLevelImpl(bookKeeping) {32 var topLevelTarget = ReactMount.getFirstReactDOM(getEventTarget(bookKeeping.nativeEvent)) || window;33 var ancestor = topLevelTarget;34 while (ancestor) {35 bookKeeping.ancestors.push(ancestor);36 ancestor = findParent(ancestor);37 }38 for (var i = 0,39 l = bookKeeping.ancestors.length; i < l; i++) {40 topLevelTarget = bookKeeping.ancestors[i];41 var topLevelTargetID = ReactMount.getID(topLevelTarget) || '';42 ReactEventListener._handleTopLevel(bookKeeping.topLevelType, topLevelTarget, topLevelTargetID, bookKeeping.nativeEvent);43 }44 }45 function scrollValueMonitor(cb) {...

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Using AI Code Generation

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1const { handleTopLevelImpl } = require('playwright/​lib/​server/​supplements/​recorder/​recorderSupplement.js');2const { Page } = require('playwright/​lib/​server/​page.js');3const { Frame } = require('playwright/​lib/​server/​frame.js');4const page = new Page(null, null, null, null);5const frame = new Frame(page, null, null);6handleTopLevelImpl(frame, 'click', {x: 100, y: 100}, {modifiers: 0, button: 'left', clickCount: 1, force: false, noWaitAfter: false, position: {x: 100, y: 100}, timeout: 30000, trial: false}, null, null);7handleTopLevelImpl(page, 'click', {x: 100, y: 100}, {modifiers: 0, button: 'left', clickCount: 1, force: false, noWaitAfter: false, position: {x: 100, y: 100}, timeout: 30000, trial: false}, null, null);8handleTopLevelImpl(frame, 'click', {x: 100, y: 100}, {modifiers: 0, button: 'left', clickCount: 1, force: false, noWaitAfter: false, position: {x: 100, y: 100}, timeout: 30000, trial: false}, null, null);9handleTopLevelImpl(page, 'click', {x: 100, y: 100}, {modifiers: 0, button: 'left', clickCount: 1, force: false, noWaitAfter: false, position: {x: 100, y: 100}, timeout: 30000, trial: false}, null, null);10handleTopLevelImpl(frame, 'click', {x: 100, y: 100}, {modifiers: 0, button: 'left', clickCount: 1, force: false, noWaitAfter

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Using AI Code Generation

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1const { Playwright } = require('playwright-core/​lib/​server/​playwright.js');2const { handleTopLevelImpl } = require('playwright-core/​lib/​server/​browserType.js');3const { Browser } = require('playwright-core/​lib/​server/​browser.js');4const { BrowserContext } = require('playwright-core/​lib/​server/​browserContext.js');5const { Page } = require('playwright-core/​lib/​server/​page.js');6const playwright = new Playwright();7const browserType = playwright.chromium;8const browser = await browserType.launch();9const context = await browser.newContext();10const page = await context.newPage();11await handleTopLevelImpl.call(browserType, browser, context, page);12await browser.close();13await playwright.stop();14const { Playwright } = require('playwright-core/​lib/​server/​playwright.js');15const { handleTopLevelImpl } = require('playwright-core/​lib/​server/​browserType.js');16const { Browser } = require('playwright-core/​lib/​server/​browser.js');17const { BrowserContext } = require('playwright-core/​lib/​server/​browserContext.js');18const { Page } = require('playwright-core/​lib/​server/​page.js');19const playwright = new Playwright();20const browserType = playwright.chromium;21const browser = await browserType.launch();22const context = await browser.newContext();23const page = await context.newPage();24await handleTopLevelImpl.call(browserType, browser, context, page);25await browser.close();26await playwright.stop();

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Using AI Code Generation

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1const { handleTopLevelImpl } = require('playwright/​lib/​server/​frames');2const fs = require('fs');3const path = require('path');4const { chromium } = require('playwright');5const { promisify } = require('util');6const sleep = promisify(setTimeout);7(async () => {8 const browser = await chromium.launch();9 const context = await browser.newContext();10 const page = await context.newPage();11 const frame = page.mainFrame();12 const frameHandle = await frame._page._delegate._frameManager.frame(frame._id)._mainContext();13 const handle = await frame.$('input');14 const elementHandle = await handle._context._adoptBackendNodeId(handle._remoteObject.backendNodeId);15 const buttonHandle = await frame.$('button');16 const buttonElementHandle = await buttonHandle._context._adoptBackendNodeId(buttonHandle._remoteObject.backendNodeId);17 const buttonHandle = await frame.$('button');18 const buttonElementHandle = await buttonHandle._context._adoptBackendNodeId(buttonHandle._remoteObject.backendNodeId);19 const fileHandle = await frame.$('input[type="file"]');20 const fileElementHandle = await fileHandle._context._adoptBackendNodeId(fileHandle._remoteObject.backendNodeId);21 const filePath = path.join(__dirname, 'test.txt');22 await frame.setInputFiles(fileElementHandle, filePath);23 const file = await frame.evaluateHandle(element => element.files[0], fileElementHandle);24 const fileName = await frame.evaluate(element => element.files[0].name, fileElementHandle);25 const fileSize = await frame.evaluate(element => element.files[0].size, fileElementHandle);26 const fileType = await frame.evaluate(element => element.files[0].type, fileElementHandle);

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Using AI Code Generation

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1const { handleTopLevelImpl } = require('playwright/​lib/​server/​chromium/​crPage');2const { Page } = require('playwright/​lib/​server/​chromium/​crPage');3const { helper } = require('playwright/​lib/​helper');4const { assert } = require('playwright/​lib/​utils/​utils');5const { chromium } = require('playwright');6(async () => {7 const browser = await chromium.launch({ headless: false });8 const context = await browser.newContext();9 const page = await context.newPage();10 const frame = page.mainFrame();11 const handle = await frame.waitForSelector('#main-content');12 const element = await handle.asElement();13 const result = await handleTopLevelImpl.call(element, 'click', 'left');14 console.log(result);15})();16 at CDPSession._onMessage (/​home/​username/​playwright/​node_modules/​playwright/​lib/​cjs/​server/​cjs/​chromium/​crConnection.js:34:55)17 at CDPSession.emit (events.js:315:20)18 at CDPSession._onMessage (/​home/​username/​playwright/​node_modules/​playwright/​lib/​cjs/​server/​cjs/​chromium/​crConnection.js:34:55)19 at CDPSession.emit (events.js:315:20)20 at CDPSession._onMessage (/​home/​username/​playwright/​node_modules/​playwright/​lib/​cjs/​server/​cjs/​chromium/​crConnection.js:34:55)21 at CDPSession.emit (events.js:315:20)22 at CDPSession._onMessage (/​home/​username/​playwright/​node_modules/​playwright/​lib/​cjs/​server/​cjs/​chromium/​crConnection.js:34:55)23 at CDPSession.emit (events.js:315:20)24 at Connection._onMessage (/​home/​username/​playwright/​node_modules/​playwright/​lib/​cjs/​server/​cjs/​chromium/​crConnection.js:34:55)25 at Connection.emit (events.js:315:20)

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Using AI Code Generation

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1const { handleTopLevelImpl } = require('playwright/​lib/​server/​dom.js');2const { ElementHandle } = require('playwright/​lib/​server/​dom.js');3const { JSHandle } = require('playwright/​lib/​server/​dom.js');4const { Page } = require('playwright/​lib/​server/​page.js');5const { helper } = require('playwright/​lib/​helper.js');6const { assert } = require('playwright/​lib/​helper.js');7const { chromium } = require('playwright');8(async () => {9 const browser = await chromium.launch();10 const context = await browser.newContext();11 const page = await context.newPage();12 const elementHandle = await page.$('div#SIvCob');13 const box = await elementHandle.boundingBox();14 console.log(box);15 const x = box.x + box.width /​ 2;16 const y = box.y + box.height /​ 2;17 await page.mouse.move(x, y);18 await page.mouse.down();19 await page.mouse.up();20 await browser.close();21})();22const { JSHandle } = require('./​jsHandle.js');23const { helper } = require('../​helper.js');24const { assert } = require('../​helper.js');25const { Page } = require('./​page.js');26class ElementHandle extends JSHandle {27 constructor(context, client, remoteObject, page) {28 super(context, client, remoteObject);29 this._page = page;30 }31 async hover() {32 await this._scrollIntoViewIfNeeded();33 const { backendNodeId } = await this._client.send('DOM.describeNode', {34 });35 await this._client.send('DOM.highlightNode', {36 highlightConfig: { showInfo: true },37 });38 await this._page.mouse.move(0, 0);39 await this._client.send('DOM.hideHighlight');40 }41 async click(options = {}) {42 await this._scrollIntoViewIfNeeded();43 await this._page.mouse.click(options.x, options.y, options);44 }45 async tap() {46 await this._scrollIntoViewIfNeeded();47 await this._page.touchscreen.tap(0, 0);48 }49 async focus() {50 await this._client.send('DOM.focus', {

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Using AI Code Generation

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1const { _electron } = require(“playwright-core/​lib/​server/​electron.js”);2_electron.handleTopLevelImpl = async function handleTopLevelImpl(3) {4 console.log(“handleTopLevelImpl”);5 const context = page.context();6 const interceptedRequest = new InterceptedRequest(7 );8 context.emit(“request”, interceptedRequest);9 await interceptedRequest._waitForContinue();10};11const path = require(“path”);12module.exports = {13 testDir: path.join(__dirname, “test”),14 use: {15 electron: {16 },17 },18};19const { test, expect } = require(“@playwright/​test”);20test(“test”, async ({ page }) => {21});22const { test, expect } = require(“@playwright/​test”);23test(“test”, async ({ page }) => {24});25const { test, expect } = require(“@playwright/​test”);26test(“test”, async ({ page }) => {27});28const { test, expect } = require(“

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Using AI Code Generation

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1const { handleTopLevelImpl } = require('playwright/​lib/​client/​frames');2const frame = await page.mainFrame();3const context = await frame.executionContext();4const handle = await context.evaluateHandle(() => document);5const topLevelHandle = await handleTopLevelImpl(handle);6const topLevelFrame = topLevelHandle._object._frame;7const topLevelFrameUrl = topLevelFrame.url();8const topLevelFrameName = topLevelFrame.name();9console.log('top level frame url: ', topLevelFrameUrl);10console.log('top level frame name: ', topLevelFrameName);11await browser.close();

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StackOverFlow community discussions

Questions
Discussion

Jest + Playwright - Test callbacks of event-based DOM library

firefox browser does not start in playwright

Is it possible to get the selector from a locator object in playwright?

How to run a list of test suites in a single file concurrently in jest?

Running Playwright in Azure Function

firefox browser does not start in playwright

This question is quite close to a "need more focus" question. But let's try to give it some focus:

Does Playwright has access to the cPicker object on the page? Does it has access to the window object?

Yes, you can access both cPicker and the window object inside an evaluate call.

Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?

Exactly, or you can assign values to a javascript variable:

const cPicker = new ColorPicker({
  onClickOutside(e){
  },
  onInput(color){
    window['color'] = color;
  },
  onChange(color){
    window['result'] = color;
  }
})

And then

it('Should call all callbacks with correct arguments', async() => {
    await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})

    // Wait until the next frame
    await page.evaluate(() => new Promise(requestAnimationFrame))

    // Act
   
    // Assert
    const result = await page.evaluate(() => window['color']);
    // Check the value
})
https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

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