Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use accumulateEnterLeaveListenersForEvent method in Playwright Internal

Best JavaScript code snippet using playwright-internal

DOMPluginEventSystem.js

Source:DOMPluginEventSystem.js

...394      nodeB = getParent(nodeB);395    }396    return null;397  }398  function accumulateEnterLeaveListenersForEvent(dispatchQueue, event, target, common, inCapturePhase) {399    var registrationName = event._reactName;400    var listeners = [];401    var instance = target;402    while (instance !== null) {403      if (instance === common) {404        break;405      }406      var _instance4 = instance,407          alternate = _instance4.alternate,408          stateNode = _instance4.stateNode,409          tag = _instance4.tag;410      if (alternate !== null && alternate === common) {411        break;412      }413      if (tag === HostComponent && stateNode !== null) {414        var currentTarget = stateNode;415        if (inCapturePhase) {416          var captureListener = getListener(instance, registrationName);417          if (captureListener != null) {418            listeners.unshift(createDispatchListener(instance, captureListener, currentTarget));419          }420        } else if (!inCapturePhase) {421          var bubbleListener = getListener(instance, registrationName);422          if (bubbleListener != null) {423            listeners.push(createDispatchListener(instance, bubbleListener, currentTarget));424          }425        }426      }427      instance = instance.return;428    }429    if (listeners.length !== 0) {430      dispatchQueue.push({431        event: event,432        listeners: listeners433      });434    }435  } // We should only use this function for:436  // - EnterLeaveEventPlugin437  // This is because we only process this plugin438  // in the bubble phase, so we need to accumulate two439  // phase event listeners.440  function accumulateEnterLeaveTwoPhaseListeners(dispatchQueue, leaveEvent, enterEvent, from, to) {441    var common = from && to ? getLowestCommonAncestor(from, to) : null;442    if (from !== null) {443      accumulateEnterLeaveListenersForEvent(dispatchQueue, leaveEvent, from, common, false);444    }445    if (to !== null && enterEvent !== null) {446      accumulateEnterLeaveListenersForEvent(dispatchQueue, enterEvent, to, common, true);447    }448  }449  function getListenerSetKey(domEventName, capture) {450    return domEventName + "__" + (capture ? 'capture' : 'bubble');...

DOMModernPluginEventSystem.js

Source:DOMModernPluginEventSystem.js

...563    nodeB = getParent(nodeB);564  }565  return null;566}567function accumulateEnterLeaveListenersForEvent(568  event: ReactSyntheticEvent,569  target: Fiber,570  common: Fiber | null,571  capture: boolean,572): void {573  const registrationName = event.dispatchConfig.registrationName;574  if (registrationName === undefined) {575    return;576  }577  const dispatchListeners = [];578  const dispatchInstances: Array<Fiber | null> = [];579  const dispatchCurrentTargets = [];580  let instance = target;581  while (instance !== null) {582    if (instance === common) {583      break;584    }585    const {alternate, stateNode, tag} = instance;586    if (alternate !== null && alternate === common) {587      break;588    }589    if (tag === HostComponent && stateNode !== null) {590      const currentTarget = stateNode;591      if (capture) {592        const captureListener = getListener(instance, registrationName);593        if (captureListener != null) {594          // Capture listeners/instances should go at the start, so we595          // unshift them to the start of the array.596          dispatchListeners.unshift(captureListener);597          dispatchInstances.unshift(instance);598          dispatchCurrentTargets.unshift(currentTarget);599        }600      } else {601        const bubbleListener = getListener(instance, registrationName);602        if (bubbleListener != null) {603          // Bubble listeners/instances should go at the end, so we604          // push them to the end of the array.605          dispatchListeners.push(bubbleListener);606          dispatchInstances.push(instance);607          dispatchCurrentTargets.push(currentTarget);608        }609      }610    }611    instance = instance.return;612  }613  // To prevent allocation to the event unless we actually614  // have listeners we check the length of one of the arrays.615  if (dispatchListeners.length > 0) {616    event._dispatchListeners = dispatchListeners;617    event._dispatchInstances = dispatchInstances;618    event._dispatchCurrentTargets = dispatchCurrentTargets;619  }620}621export function accumulateEnterLeaveListeners(622  leaveEvent: ReactSyntheticEvent,623  enterEvent: ReactSyntheticEvent,624  from: Fiber | null,625  to: Fiber | null,626): void {627  const common = from && to ? getLowestCommonAncestor(from, to) : null;628  if (from !== null) {629    accumulateEnterLeaveListenersForEvent(leaveEvent, from, common, false);630  }631  if (to !== null) {632    accumulateEnterLeaveListenersForEvent(enterEvent, to, common, true);633  }...

accumulateEnterLeaveListeners.js

Source:accumulateEnterLeaveListeners.js

...62    nodeB = getParent(nodeB);63  }64  return null;65}66function accumulateEnterLeaveListenersForEvent(67  event: ReactSyntheticEvent,68  target: Fiber,69  common: Fiber | null,70  capture: boolean,71): void {72  const registrationName = event.dispatchConfig.registrationName;73  if (registrationName === undefined) {74    return;75  }76  const dispatchListeners = [];77  const dispatchInstances: Array<Fiber | null> = [];78  const dispatchCurrentTargets = [];79  let instance = target;80  while (instance !== null) {81    if (instance === common) {82      break;83    }84    const {alternate, stateNode, tag} = instance;85    if (alternate !== null && alternate === common) {86      break;87    }88    if (tag === HostComponent && stateNode !== null) {89      const currentTarget = stateNode;90      if (capture) {91        const captureListener = getListener(instance, registrationName);92        if (captureListener != null) {93          // Capture listeners/instances should go at the start, so we94          // unshift them to the start of the array.95          dispatchListeners.unshift(captureListener);96          dispatchInstances.unshift(instance);97          dispatchCurrentTargets.unshift(currentTarget);98        }99      } else {100        const bubbleListener = getListener(instance, registrationName);101        if (bubbleListener != null) {102          // Bubble listeners/instances should go at the end, so we103          // push them to the end of the array.104          dispatchListeners.push(bubbleListener);105          dispatchInstances.push(instance);106          dispatchCurrentTargets.push(currentTarget);107        }108      }109    }110    instance = instance.return;111  }112  // To prevent allocation to the event unless we actually113  // have listeners we check the length of one of the arrays.114  if (dispatchListeners.length > 0) {115    event._dispatchListeners = dispatchListeners;116    event._dispatchInstances = dispatchInstances;117    event._dispatchCurrentTargets = dispatchCurrentTargets;118  }119}120export default function accumulateEnterLeaveListeners(121  leaveEvent: ReactSyntheticEvent,122  enterEvent: ReactSyntheticEvent,123  from: Fiber | null,124  to: Fiber | null,125): void {126  const common = from && to ? getLowestCommonAncestor(from, to) : null;127  if (from !== null) {128    accumulateEnterLeaveListenersForEvent(leaveEvent, from, common, false);129  }130  if (to !== null) {131    accumulateEnterLeaveListenersForEvent(enterEvent, to, common, true);132  }...

Using AI Code Generation

1const playwright = require('playwright');2(async () => {3  const browser = await playwright.chromium.launch({ headless: false });4  const context = await browser.newContext();5  const page = await context.newPage();6  const client = await page.context().newCDPSession(page);7  await client.send('DOM.enable');8  await client.send('DOM.getDocument');9  const listeners = await client.send('DOM.accumulateEnterLeaveListenersForEvent', {10  });11  console.log(listeners);12  await browser.close();13})();14{15    {16    },17    {18    }19}

Using AI Code Generation

1const path = require('path');2const playwright = require('playwright');3const { accumulateEnterLeaveListenersForEvent } = require('playwright/lib/internal/protocol/protocol.js');4(async () => {5  const browser = await playwright['chromium'].launch();6  const context = await browser.newContext();7  const page = await context.newPage();8  const listeners = await accumulateEnterLeaveListenersForEvent(page, 'click');9  console.log(listeners);10  await browser.close();11})();12  {13    handler: 'function click() {\n    if (!this.ownerDocument || this.disabled || this.ownerDocument.activeElement === this) {\n        return;\n    }\n    if (this.tagName === \'INPUT\' || this.tagName === \'TEXTAREA\' || this.tagName === \'SELECT\') {\n        this.focus();\n        return;\n    }\n    if (this.isContentEditable)\n        this.focus();\n}',14  },15  {16    handler: 'function click() {\n    if (!this.ownerDocument || this.disabled || this.ownerDocument.activeElement === this) {\n        return;\n    }\n    if (this.tagName === \'INPUT\' || this.tagName === \'TEXTAREA\' || this.tagName === \'SELECT\') {\n        this.focus();\n        return;\n    }\n    if (this.isContentEditable)\n        this.focus();\n}',17  }

Using AI Code Generation

1const { accumulateEnterLeaveListenersForEvent } = require('playwright/lib/server/dom.js');2const { getAttribute } = require('playwright/lib/server/dom.js');3const { getDocument } = require('playwright/lib/server/dom.js');4const { getEventListeners } = require('playwright/lib/server/dom.js');5const { getEventListenersForNode } = require('playwright/lib/server/dom.js');6const { getFrameElement } = require('playwright/lib/server/dom.js');7const { getFrameOwner } = require('playwright/lib/server/dom.js');8const { getFrameOwnerDocument } = require('playwright/lib/server/dom.js');9const { getFrameOwnerNode } = require('playwright/lib/server/dom.js');10const { getFrameOwnerPage } = require('playwright/lib/server/dom.js');11const { getFrameWindow } = require('playwright/lib/server/dom.js');12const { getRootNode } = require('playwright/lib/server/dom.js');13const { getShadowRoots } = require('playwright/lib/server/dom.js');14const { getTreeScope } = require('playwright/lib/server/dom.js');15const { getTreeScopeForNode } = require('playwright/lib/server/dom.js');16const { getTreeScopeForNodeWithId } = require('playwright/lib/server/dom.js');17const { getTreeScopeForNodeWithIdOrThrow } = require('playwright/lib/server/dom.js');18const { getTreeScopeForNodeWithIdOrThrowForTest } = require('playwright/lib/server/dom.js');19const { getTreeScopeForNodeWithIdOrThrowForTest_ } = require('playwright/lib/server/dom.js');20const { getTreeScopeForNodeWithIdOrThrow_ } = require('playwright/lib/server/dom.js');21const { getTreeScopeForNodeWithId_ } = require('playwright/lib/server/dom.js');22const { getTreeScopeForNode_ } = require('playwright/lib/server/dom.js');23const { getTreeScope_ } = require('playwright/lib/server/dom.js');24const { isShadowRoot } = require('playwright/lib/server/dom.js');25const { isShadowRoot_ } = require('playwright/lib/server/dom.js');26const { isTreeScope } = require('playwright/lib/server/dom.js');27const { isTreeScope_ } = require('playwright/lib/server/dom.js');28const { setAttribute } = require('playwright/lib

Using AI Code Generation

1const event = { type: 'mouseover', target: document.querySelector('div') };pageconst listeners = accumulateEnterLeaveListenersForEvent(event);2conso.svene {typ: 'moseove, tt: dcuet.qurySe(div' }3medoo P.lyg(listenewgt Internal API4const vvnn { t{ tyye: 'mouseover', tpeg t: document.query'mouseoverarget }: document.querySelector('div') };5consollisognersistdccuulteEteLevListt.e sFutEveEt(event);rLeaveListenersForEvent } = require('playwright/lib/server/page');6 onsoau.log(listemers);teEnterLeaveListenersForEvent(event);7 oqstre}ac=umueatiErtewLrveLsrcrsForEvent}=que('pywigh/l/rer/g');8cos:evt=  yp':ous oer ttegs []domeni.quelyS:lctor() };9cocshl[ s    rs =  cpumare eEn e LeaveL s  ner ForEve t(     );  },10 onso  .log(liste]ers);11ent: {12                       mouseover           docum   .qu   S    {o( d v                           _attributes: [],13           },{yp: 'mouseove', trg: docuen.quySelector'div' }14      list  ers   ac umu a  En erL a      _nameForEven (ev nt);15 onsole.log(_cste   s{;16const {  } = require'playwright/lib/srer/pag'17 evt = se accumumouseoverntetLrgetisdocnmeet.querySelersor('dFv') };18const { InternalEventEmitter } = require('@playwright/test/lib/utils/events');19const eventEmitter = new InternalEventEmitter();20const event = {21  target: {22      {23        handler: () => {},24        options: { capture: true },25      },26      {27        handler: () => {},28        options: { capture: false },29      },30  },31};32const listeners = eventEmitter.accumulateEnterLeaveListenersForEvent(event);33console.log(listeners);34const { InternalEventEmitter } = require('@playwright/test/lib/utils/events');35const eventEmitter = new InternalEventEmitter();36const event = {37  target: {38      {39        handler: () => {},40        options: { capture: true },41      },42      {43        handler: () => {},44        options: { capture: false },45      },46  },47};48const listeners = eventEmitter.accumulateEnterLeaveListenersForEvent(event);49console.log(listeners);

Using AI Code Generation

1const { accumulateEnterLeaveListenersForEvent } = require('playwright/lib/internal/accumulators');2const { Page } = require('playwright/lib/page');3const page = new Page();4const event = 'click';5const element = document.getElementById('test');6const listener = (event) => {console.log('clicked');};7element.addEventListener(event, listener);8const result = accumulateEnterLeaveListenersForEvent(page, event, element);9console.log(result);10const event = new Event('click');11const page = await browser.newPage();12await page.evaluate(() => {13  const element = document.getElementById('test');14  const listener = (event) => {console.log('clicked');};15  element.addEventListener('click', listener);16});17const page = await browser.newPage();18await page.evaluate(() => {19  document.addEventListener('click', (event) => {20    console.log('clicked');21  });22});

Using AI Code Generation

1const { accumulateEnterLeaveListenersForEvent } = require('playwright/lib/server/dom.js');2const dom = new DOM();3const event = {4  target: {5    attributes: {6    },7  },8};9const listeners = accumulateEnterLeaveListenersForEvent(dom, event);10console.log(listeners);11const { accumulateEnterLeaveListenersForEvent } = require('playwright/lib/server/dom.js');12const dom = new DOM();13const event = {14  target: {

Using AI Code Generation

1const { accumulateEnterLeaveListenersForEvent } = require('playwright/lib/internal/accumulators');2const { Page } = require('playwright/lib/page');3const page = new Page();4const event = 'click';5const element = document.getElementById('test');6const listener = (event) => {console.log('clicked');};7element.addEventListener(event, listener);8const result = accumulateEnterLeaveListenersForEvent(page, event, element);9console.log(result);10const event = new Event('click');11const page = await browser.newPage();12await page.evaluate(() => {13  const element = document.getElementById('test');14  const listener = (event) => {console.log('clicked');};15  element.addEventListener('click', listener);16});17const page = await browser.newPage();18await page.evaluate(() => {19  document.addEventListener('click', (event) => {20    console.log('clicked');21  });22});23    attributes: {24    },25  },26};27const listeners = accumulateEnterLeaveListenersForEvent(dom, event);28console.log(listeners);29const { accumulateEnterLeaveListenersForEvent } = require('playwright/lib/server/dom.js');30const dom = new DOM();31const event = {32  target: {33    attributes: {34    },35  },36};37const listeners = accumulateEnterLeaveListenersForEvent(dom, event);38console.log(listeners);39const { accumulateEnterLeaveListenersForEvent } = require('playwright/lib/server/dom.js');40const dom = new DOM();41const event = {42  target: {43    attributes: {44    },45  },46};47const listeners = accumulateEnterLeaveListenersForEvent(dom, event);48console.log(listeners);49const { accumulateEnterLeaveListenersForEvent } = require('playwright/lib/server/dom.js');50const dom = new DOM();51const event = {52  target: {53    attributes: {54    },55  },56};

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.