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How to use createDispatchListener method in Playwright Internal

Best JavaScript code snippet using playwright-internal

DOMPluginEventSystem.js

Source:DOMPluginEventSystem.js

...736      targetContainer,737    ),738  );739}740function createDispatchListener(741  instance: null | Fiber,742  listener: Function,743  currentTarget: EventTarget,744): DispatchListener {745  return {746    instance,747    listener,748    currentTarget,749  };750}751function createDispatchEntry(752  event: ReactSyntheticEvent,753  listeners: Array<DispatchListener>,754): DispatchEntry {755  return {756    event,757    listeners,758  };759}760export function accumulateSinglePhaseListeners(761  targetFiber: Fiber | null,762  dispatchQueue: DispatchQueue,763  event: ReactSyntheticEvent,764  inCapturePhase: boolean,765  accumulateTargetOnly: boolean,766): void {767  const bubbled = event._reactName;768  const captured = bubbled !== null ? bubbled + 'Capture' : null;769  const listeners: Array<DispatchListener> = [];770  let instance = targetFiber;771  let lastHostComponent = null;772  const targetType = event.nativeEvent.type;773  // Accumulate all instances and listeners via the target -> root path.774  while (instance !== null) {775    const {stateNode, tag} = instance;776    // Handle listeners that are on HostComponents (i.e. <div>)777    if (tag === HostComponent && stateNode !== null) {778      const currentTarget = stateNode;779      lastHostComponent = currentTarget;780      // For Event Handle listeners781      if (enableCreateEventHandleAPI) {782        const eventHandlerlisteners = getEventHandlerListeners(currentTarget);783        if (eventHandlerlisteners !== null) {784          const eventHandlerlistenersArr = Array.from(eventHandlerlisteners);785          for (let i = 0; i < eventHandlerlistenersArr.length; i++) {786            const {787              callback,788              capture: isCapturePhaseListener,789              type,790            } = eventHandlerlistenersArr[i];791            if (type === targetType) {792              if (isCapturePhaseListener && inCapturePhase) {793                listeners.push(794                  createDispatchListener(instance, callback, currentTarget),795                );796              } else if (!isCapturePhaseListener && !inCapturePhase) {797                listeners.push(798                  createDispatchListener(instance, callback, currentTarget),799                );800              }801            }802          }803        }804      }805      // Standard React on* listeners, i.e. onClick prop806      if (captured !== null && inCapturePhase) {807        const captureListener = getListener(instance, captured);808        if (captureListener != null) {809          listeners.push(810            createDispatchListener(instance, captureListener, currentTarget),811          );812        }813      }814      if (bubbled !== null && !inCapturePhase) {815        const bubbleListener = getListener(instance, bubbled);816        if (bubbleListener != null) {817          listeners.push(818            createDispatchListener(instance, bubbleListener, currentTarget),819          );820        }821      }822    } else if (823      enableCreateEventHandleAPI &&824      enableScopeAPI &&825      tag === ScopeComponent &&826      lastHostComponent !== null &&827      stateNode !== null828    ) {829      const reactScopeInstance = stateNode;830      const eventHandlerlisteners = getEventHandlerListeners(831        reactScopeInstance,832      );833      const lastCurrentTarget = ((lastHostComponent: any): Element);834      if (eventHandlerlisteners !== null) {835        const eventHandlerlistenersArr = Array.from(eventHandlerlisteners);836        for (let i = 0; i < eventHandlerlistenersArr.length; i++) {837          const {838            callback,839            capture: isCapturePhaseListener,840            type,841          } = eventHandlerlistenersArr[i];842          if (type === targetType) {843            if (isCapturePhaseListener && inCapturePhase) {844              listeners.push(845                createDispatchListener(instance, callback, lastCurrentTarget),846              );847            } else if (!isCapturePhaseListener && !inCapturePhase) {848              listeners.push(849                createDispatchListener(instance, callback, lastCurrentTarget),850              );851            }852          }853        }854      }855    }856    // If we are only accumulating events for the target, then we don't857    // continue to propagate through the React fiber tree to find other858    // listeners.859    if (accumulateTargetOnly) {860      break;861    }862    instance = instance.return;863  }864  if (listeners.length !== 0) {865    dispatchQueue.push(createDispatchEntry(event, listeners));866  }867}868// We should only use this function for:869// - BeforeInputEventPlugin870// - ChangeEventPlugin871// - SelectEventPlugin872// This is because we only process these plugins873// in the bubble phase, so we need to accumulate two874// phase event listeners (via emulation).875export function accumulateTwoPhaseListeners(876  targetFiber: Fiber | null,877  dispatchQueue: DispatchQueue,878  event: ReactSyntheticEvent,879): void {880  const bubbled = event._reactName;881  const captured = bubbled !== null ? bubbled + 'Capture' : null;882  const listeners: Array<DispatchListener> = [];883  let instance = targetFiber;884  // Accumulate all instances and listeners via the target -> root path.885  while (instance !== null) {886    const {stateNode, tag} = instance;887    // Handle listeners that are on HostComponents (i.e. <div>)888    if (tag === HostComponent && stateNode !== null) {889      const currentTarget = stateNode;890      // Standard React on* listeners, i.e. onClick prop891      if (captured !== null) {892        const captureListener = getListener(instance, captured);893        if (captureListener != null) {894          listeners.unshift(895            createDispatchListener(instance, captureListener, currentTarget),896          );897        }898      }899      if (bubbled !== null) {900        const bubbleListener = getListener(instance, bubbled);901        if (bubbleListener != null) {902          listeners.push(903            createDispatchListener(instance, bubbleListener, currentTarget),904          );905        }906      }907    }908    instance = instance.return;909  }910  if (listeners.length !== 0) {911    dispatchQueue.push(createDispatchEntry(event, listeners));912  }913}914function getParent(inst: Fiber | null): Fiber | null {915  if (inst === null) {916    return null;917  }918  do {919    inst = inst.return;920    // TODO: If this is a HostRoot we might want to bail out.921    // That is depending on if we want nested subtrees (layers) to bubble922    // events to their parent. We could also go through parentNode on the923    // host node but that wouldn't work for React Native and doesn't let us924    // do the portal feature.925  } while (inst && inst.tag !== HostComponent);926  if (inst) {927    return inst;928  }929  return null;930}931/**932 * Return the lowest common ancestor of A and B, or null if they are in933 * different trees.934 */935function getLowestCommonAncestor(instA: Fiber, instB: Fiber): Fiber | null {936  let nodeA = instA;937  let nodeB = instB;938  let depthA = 0;939  for (let tempA = nodeA; tempA; tempA = getParent(tempA)) {940    depthA++;941  }942  let depthB = 0;943  for (let tempB = nodeB; tempB; tempB = getParent(tempB)) {944    depthB++;945  }946  // If A is deeper, crawl up.947  while (depthA - depthB > 0) {948    nodeA = getParent(nodeA);949    depthA--;950  }951  // If B is deeper, crawl up.952  while (depthB - depthA > 0) {953    nodeB = getParent(nodeB);954    depthB--;955  }956  // Walk in lockstep until we find a match.957  let depth = depthA;958  while (depth--) {959    if (nodeA === nodeB || (nodeB !== null && nodeA === nodeB.alternate)) {960      return nodeA;961    }962    nodeA = getParent(nodeA);963    nodeB = getParent(nodeB);964  }965  return null;966}967function accumulateEnterLeaveListenersForEvent(968  dispatchQueue: DispatchQueue,969  event: KnownReactSyntheticEvent,970  target: Fiber,971  common: Fiber | null,972  inCapturePhase: boolean,973): void {974  const registrationName = event._reactName;975  const listeners: Array<DispatchListener> = [];976  let instance = target;977  while (instance !== null) {978    if (instance === common) {979      break;980    }981    const {alternate, stateNode, tag} = instance;982    if (alternate !== null && alternate === common) {983      break;984    }985    if (tag === HostComponent && stateNode !== null) {986      const currentTarget = stateNode;987      if (inCapturePhase) {988        const captureListener = getListener(instance, registrationName);989        if (captureListener != null) {990          listeners.unshift(991            createDispatchListener(instance, captureListener, currentTarget),992          );993        }994      } else if (!inCapturePhase) {995        const bubbleListener = getListener(instance, registrationName);996        if (bubbleListener != null) {997          listeners.push(998            createDispatchListener(instance, bubbleListener, currentTarget),999          );1000        }1001      }1002    }1003    instance = instance.return;1004  }1005  if (listeners.length !== 0) {1006    dispatchQueue.push(createDispatchEntry(event, listeners));1007  }1008}1009// We should only use this function for:1010// - EnterLeaveEventPlugin1011// This is because we only process this plugin1012// in the bubble phase, so we need to accumulate two1013// phase event listeners.1014export function accumulateEnterLeaveTwoPhaseListeners(1015  dispatchQueue: DispatchQueue,1016  leaveEvent: KnownReactSyntheticEvent,1017  enterEvent: null | KnownReactSyntheticEvent,1018  from: Fiber | null,1019  to: Fiber | null,1020): void {1021  const common = from && to ? getLowestCommonAncestor(from, to) : null;1022  if (from !== null) {1023    accumulateEnterLeaveListenersForEvent(1024      dispatchQueue,1025      leaveEvent,1026      from,1027      common,1028      false,1029    );1030  }1031  if (to !== null && enterEvent !== null) {1032    accumulateEnterLeaveListenersForEvent(1033      dispatchQueue,1034      enterEvent,1035      to,1036      common,1037      true,1038    );1039  }1040}1041export function accumulateEventHandleNonManagedNodeListeners(1042  dispatchQueue: DispatchQueue,1043  event: ReactSyntheticEvent,1044  currentTarget: EventTarget,1045  inCapturePhase: boolean,1046): void {1047  const listeners: Array<DispatchListener> = [];1048  const eventListeners = getEventHandlerListeners(currentTarget);1049  if (eventListeners !== null) {1050    const listenersArr = Array.from(eventListeners);1051    const targetType = ((event.type: any): DOMEventName);1052    for (let i = 0; i < listenersArr.length; i++) {1053      const listener = listenersArr[i];1054      const {callback, capture: isCapturePhaseListener, type} = listener;1055      if (type === targetType) {1056        if (inCapturePhase && isCapturePhaseListener) {1057          listeners.push(createDispatchListener(null, callback, currentTarget));1058        } else if (!inCapturePhase && !isCapturePhaseListener) {1059          listeners.push(createDispatchListener(null, callback, currentTarget));1060        }1061      }1062    }1063  }1064  if (listeners.length !== 0) {1065    dispatchQueue.push(createDispatchEntry(event, listeners));1066  }1067}1068// == è¿å domEventName åæ³¡æèæè·é¶æ®µç»è£åçäºä»¶åç§°1069export function getListenerSetKey(1070  domEventName: DOMEventName,1071  capture: boolean,1072): string {1073  return `${domEventName}__${capture ? 'capture' : 'bubble'}`;...

DOMModernPluginEventSystem.js

Source:DOMModernPluginEventSystem.js

...633      targetContainer,634    ),635  );636}637function createDispatchListener(638  instance: null | Fiber,639  listener: Function,640  currentTarget: EventTarget,641): DispatchListener {642  return {643    instance,644    listener,645    currentTarget,646  };647}648function createDispatchEntry(649  event: ReactSyntheticEvent,650  listeners: Array<DispatchListener>,651): DispatchEntry {652  return {653    event,654    listeners,655  };656}657export function accumulateSinglePhaseListeners(658  targetFiber: Fiber | null,659  dispatchQueue: DispatchQueue,660  event: ReactSyntheticEvent,661  inCapturePhase: boolean,662): void {663  const bubbled = event._reactName;664  const captured = bubbled !== null ? bubbled + 'Capture' : null;665  const listeners: Array<DispatchListener> = [];666  // If we are not handling EventTarget only phase, then we're doing the667  // usual two phase accumulation using the React fiber tree to pick up668  // all relevant useEvent and on* prop events.669  let instance = targetFiber;670  let lastHostComponent = null;671  const targetType = event.type;672  // shouldEmulateTwoPhase is temporary till we can polyfill focus/blur to673  // focusin/focusout.674  const shouldEmulateTwoPhase = capturePhaseEvents.has(675    ((targetType: any): DOMTopLevelEventType),676  );677  // Accumulate all instances and listeners via the target -> root path.678  while (instance !== null) {679    const {stateNode, tag} = instance;680    // Handle listeners that are on HostComponents (i.e. <div>)681    if (tag === HostComponent && stateNode !== null) {682      const currentTarget = stateNode;683      lastHostComponent = currentTarget;684      // For Event Handle listeners685      if (enableCreateEventHandleAPI) {686        const eventHandlerlisteners = getEventHandlerListeners(currentTarget);687        if (eventHandlerlisteners !== null) {688          const eventHandlerlistenersArr = Array.from(eventHandlerlisteners);689          for (let i = 0; i < eventHandlerlistenersArr.length; i++) {690            const {691              callback,692              capture: isCapturePhaseListener,693              type,694            } = eventHandlerlistenersArr[i];695            if (type === targetType) {696              if (isCapturePhaseListener && inCapturePhase) {697                listeners.push(698                  createDispatchListener(instance, callback, currentTarget),699                );700              } else if (!isCapturePhaseListener) {701                const entry = createDispatchListener(702                  instance,703                  callback,704                  currentTarget,705                );706                if (shouldEmulateTwoPhase) {707                  listeners.unshift(entry);708                } else if (!inCapturePhase) {709                  listeners.push(entry);710                }711              }712            }713          }714        }715      }716      // Standard React on* listeners, i.e. onClick prop717      if (captured !== null && inCapturePhase) {718        const captureListener = getListener(instance, captured);719        if (captureListener != null) {720          listeners.push(721            createDispatchListener(instance, captureListener, currentTarget),722          );723        }724      }725      if (bubbled !== null) {726        const bubbleListener = getListener(instance, bubbled);727        if (bubbleListener != null) {728          const entry = createDispatchListener(729            instance,730            bubbleListener,731            currentTarget,732          );733          if (shouldEmulateTwoPhase) {734            listeners.unshift(entry);735          } else if (!inCapturePhase) {736            listeners.push(entry);737          }738        }739      }740    } else if (741      enableCreateEventHandleAPI &&742      enableScopeAPI &&743      tag === ScopeComponent &&744      lastHostComponent !== null745    ) {746      const reactScopeInstance = stateNode;747      const eventHandlerlisteners = getEventHandlerListeners(748        reactScopeInstance,749      );750      const lastCurrentTarget = ((lastHostComponent: any): Element);751      if (eventHandlerlisteners !== null) {752        const eventHandlerlistenersArr = Array.from(eventHandlerlisteners);753        for (let i = 0; i < eventHandlerlistenersArr.length; i++) {754          const {755            callback,756            capture: isCapturePhaseListener,757            type,758          } = eventHandlerlistenersArr[i];759          if (type === targetType) {760            if (isCapturePhaseListener && inCapturePhase) {761              listeners.push(762                createDispatchListener(instance, callback, lastCurrentTarget),763              );764            } else if (!isCapturePhaseListener) {765              const entry = createDispatchListener(766                instance,767                callback,768                lastCurrentTarget,769              );770              if (shouldEmulateTwoPhase) {771                listeners.unshift(entry);772              } else if (!inCapturePhase) {773                listeners.push(entry);774              }775            }776          }777        }778      }779    }780    instance = instance.return;781  }782  if (listeners.length !== 0) {783    dispatchQueue.push(createDispatchEntry(event, listeners));784  }785}786// We should only use this function for:787// - ModernBeforeInputEventPlugin788// - ModernChangeEventPlugin789// - ModernSelectEventPlugin790// This is because we only process these plugins791// in the bubble phase, so we need to accumulate two792// phase event listeners (via emulation).793export function accumulateTwoPhaseListeners(794  targetFiber: Fiber | null,795  dispatchQueue: DispatchQueue,796  event: ReactSyntheticEvent,797): void {798  const bubbled = event._reactName;799  const captured = bubbled !== null ? bubbled + 'Capture' : null;800  const listeners: Array<DispatchListener> = [];801  let instance = targetFiber;802  // Accumulate all instances and listeners via the target -> root path.803  while (instance !== null) {804    const {stateNode, tag} = instance;805    // Handle listeners that are on HostComponents (i.e. <div>)806    if (tag === HostComponent && stateNode !== null) {807      const currentTarget = stateNode;808      // Standard React on* listeners, i.e. onClick prop809      if (captured !== null) {810        const captureListener = getListener(instance, captured);811        if (captureListener != null) {812          listeners.unshift(813            createDispatchListener(instance, captureListener, currentTarget),814          );815        }816      }817      if (bubbled !== null) {818        const bubbleListener = getListener(instance, bubbled);819        if (bubbleListener != null) {820          listeners.push(821            createDispatchListener(instance, bubbleListener, currentTarget),822          );823        }824      }825    }826    instance = instance.return;827  }828  if (listeners.length !== 0) {829    dispatchQueue.push(createDispatchEntry(event, listeners));830  }831}832function getParent(inst: Fiber | null): Fiber | null {833  if (inst === null) {834    return null;835  }836  do {837    inst = inst.return;838    // TODO: If this is a HostRoot we might want to bail out.839    // That is depending on if we want nested subtrees (layers) to bubble840    // events to their parent. We could also go through parentNode on the841    // host node but that wouldn't work for React Native and doesn't let us842    // do the portal feature.843  } while (inst && inst.tag !== HostComponent);844  if (inst) {845    return inst;846  }847  return null;848}849/**850 * Return the lowest common ancestor of A and B, or null if they are in851 * different trees.852 */853function getLowestCommonAncestor(instA: Fiber, instB: Fiber): Fiber | null {854  let nodeA = instA;855  let nodeB = instB;856  let depthA = 0;857  for (let tempA = nodeA; tempA; tempA = getParent(tempA)) {858    depthA++;859  }860  let depthB = 0;861  for (let tempB = nodeB; tempB; tempB = getParent(tempB)) {862    depthB++;863  }864  // If A is deeper, crawl up.865  while (depthA - depthB > 0) {866    nodeA = getParent(nodeA);867    depthA--;868  }869  // If B is deeper, crawl up.870  while (depthB - depthA > 0) {871    nodeB = getParent(nodeB);872    depthB--;873  }874  // Walk in lockstep until we find a match.875  let depth = depthA;876  while (depth--) {877    if (nodeA === nodeB || (nodeB !== null && nodeA === nodeB.alternate)) {878      return nodeA;879    }880    nodeA = getParent(nodeA);881    nodeB = getParent(nodeB);882  }883  return null;884}885function accumulateEnterLeaveListenersForEvent(886  dispatchQueue: DispatchQueue,887  event: ReactSyntheticEvent,888  target: Fiber,889  common: Fiber | null,890  inCapturePhase: boolean,891): void {892  const registrationName = event._reactName;893  if (registrationName === undefined) {894    return;895  }896  const listeners: Array<DispatchListener> = [];897  let instance = target;898  while (instance !== null) {899    if (instance === common) {900      break;901    }902    const {alternate, stateNode, tag} = instance;903    if (alternate !== null && alternate === common) {904      break;905    }906    if (tag === HostComponent && stateNode !== null) {907      const currentTarget = stateNode;908      if (inCapturePhase) {909        const captureListener = getListener(instance, registrationName);910        if (captureListener != null) {911          listeners.unshift(912            createDispatchListener(instance, captureListener, currentTarget),913          );914        }915      } else if (!inCapturePhase) {916        const bubbleListener = getListener(instance, registrationName);917        if (bubbleListener != null) {918          listeners.push(919            createDispatchListener(instance, bubbleListener, currentTarget),920          );921        }922      }923    }924    instance = instance.return;925  }926  if (listeners.length !== 0) {927    dispatchQueue.push(createDispatchEntry(event, listeners));928  }929}930// We should only use this function for:931// - ModernEnterLeaveEventPlugin932// This is because we only process this plugin933// in the bubble phase, so we need to accumulate two934// phase event listeners.935export function accumulateEnterLeaveTwoPhaseListeners(936  dispatchQueue: DispatchQueue,937  leaveEvent: ReactSyntheticEvent,938  enterEvent: null | ReactSyntheticEvent,939  from: Fiber | null,940  to: Fiber | null,941): void {942  const common = from && to ? getLowestCommonAncestor(from, to) : null;943  if (from !== null) {944    accumulateEnterLeaveListenersForEvent(945      dispatchQueue,946      leaveEvent,947      from,948      common,949      false,950    );951  }952  if (to !== null && enterEvent !== null) {953    accumulateEnterLeaveListenersForEvent(954      dispatchQueue,955      enterEvent,956      to,957      common,958      true,959    );960  }961}962export function accumulateEventHandleNonManagedNodeListeners(963  dispatchQueue: DispatchQueue,964  event: ReactSyntheticEvent,965  currentTarget: EventTarget,966  inCapturePhase: boolean,967): void {968  const listeners: Array<DispatchListener> = [];969  const eventListeners = getEventHandlerListeners(currentTarget);970  if (eventListeners !== null) {971    const listenersArr = Array.from(eventListeners);972    const targetType = ((event.type: any): DOMTopLevelEventType);973    for (let i = 0; i < listenersArr.length; i++) {974      const listener = listenersArr[i];975      const {callback, capture: isCapturePhaseListener, type} = listener;976      if (type === targetType) {977        if (inCapturePhase && isCapturePhaseListener) {978          listeners.push(createDispatchListener(null, callback, currentTarget));979        } else if (!inCapturePhase && !isCapturePhaseListener) {980          listeners.push(createDispatchListener(null, callback, currentTarget));981        }982      }983    }984  }985  if (listeners.length !== 0) {986    dispatchQueue.push(createDispatchEntry(event, listeners));987  }988}989export function addEventTypeToDispatchConfig(type: DOMTopLevelEventType): void {990  const reactName = topLevelEventsToReactNames.get(type);991  // If we don't have a reactName, then we're dealing with992  // an event type that React does not know about (i.e. a custom event).993  // We need to register an event config for this or the SimpleEventPlugin994  // will not appropriately provide a SyntheticEvent, so we use out empty...

Using AI Code Generation

1const { createDispatchListener } = require('playwright/lib/server/dispatchers/dispatcher');2const { DispatcherConnection } = require('playwright/lib/server/dispatchers/dispatcher');3const { Dispatcher } = require('playwright/lib/server/dispatchers/dispatcher');4const { ConnectionTransport } = require('playwright/lib/server/transport');5const { BrowserServer } = require('playwright/lib/server/browserType');6const { BrowserContext } = require('playwright/lib/server/browserContext');7const { Page } = require('playwright/lib/server/page');8const { Frame } = require('playwright/lib/server/frames');9const { ElementHandle } = require('playwright/lib/server/dom');10const dispatcherConnection = new DispatcherConnection(new ConnectionTransport());11const dispatcher = new Dispatcher(dispatcherConnection, {}, 'testDispatcher');12const listener = createDispatchListener(dispatcher);13const object = new BrowserServer();14object._addEventListeners([listener]);15const event = {16    params: {17    }18};19dispatcherConnection.dispatch(event);20console.log('Event is received');21object._removeEventListeners([listener]);22console.log('Event is not received');23dispatcherConnection.close();24console.log('Event is not received');

Using AI Code Generation

1const { createDispatchListener } = require('playwright/lib/server/dispatchers/dispatcher');2const { helper } = require('playwright/lib/server/helper');3const { BrowserContextDispatcher } = require('playwright/lib/server/dispatchers/browserContextDispatcher');4const { PageDispatcher } = require('playwright/lib/server/dispatchers/pageDispatcher');5const { BrowserDispatcher } = require('playwright/lib/server/dispatchers/browserDispatcher');6const { Connection } = require('playwright/lib/client/connection');7const { BrowserType } = require('playwright/lib/client/browserType');8const { Browser } = require('playwright/lib/client/browser');9const { BrowserContext } = require('playwright/lib/client/browserContext');10const { Page } = require('playwright/lib/client/page');11const { ElementHandle } = require('playwright/lib/client/elementHandler');12const { JSHandle } = require('playwright/lib/client/jsHandle');13const { BrowserTypeChannel } = require('playwright/lib/client/channels');14const { BrowserChannel } = require('playwright/lib/client/channels');15const { BrowserContextChannel } = require('playwright/lib/client/channels');16const { PageChannel } = require('playwright/lib/client/channels');17const { ElementHandleChannel } = require('playwright/lib/client/channels');18const { JSHandleChannel } = require('playwright/lib/client/channels');19const { BrowserTypeInitializer } = require('playwright/lib/client/initializers');20const { BrowserInitializer } = require('playwright/lib/client/initializers');21const { BrowserContextInitializer } = require('playwright/lib/client/initializers');22const { PageInitializer } = require('playwright/lib/client/initializers');23const { ElementHandleInitializer } = require('playwright/lib/client/initializers');24const { JSHandleInitializer } = require('playwright/lib/client/initializers');25const { BrowserTypeDispatcher } = require('playwright/lib/server/dispatchers/browserTypeDispatcher');26const { BrowserContext } = require('playwright/lib/client/browserContext');27const { BrowserType } = require('playwright/lib/client/browserType');28const { Browser } = require('playwright/lib/client/browser');29const { BrowserContext } = require('playwright/lib/client/browserContext');30const { Page } = require('playwright/lib/client/page');31const { ElementHandle } = require('playwright/lib/client/elementHandler');32const { JSHandle } = require

Using AI Code Generation

1const { createDispatchListener } = require('playwright/lib/server/dispatchers/dispatcher.js');2const dispatcher = createDispatchListener();3dispatcher.on('event', (event) => {4  console.log(event);5});6const { dispatch } = require('playwright/lib/server/dispatchers/dispatcher.js');7dispatch({8  params: {9  }10});

Using AI Code Generation

1const { createDispatchListener } = require('playwright-core/lib/server/dispatchers/dispatcher');2const { helper } = require('playwright-core/lib/server/helper');3let listener = createDispatchListener((message) => {4    console.log(`Received message: ${message.method}`);5});6listener.on('close', () => {7    console.log('Received close event');8});9listener.on('message', (message) => {10    console.log(`Received message: ${message.method}`);11});12listener.on('error', (error) => {13    console.log(`Received error: ${er

Using AI Code Generation

1const { createDispatchListener } = require('playwright/lib/server/webkit');2const { connect } = require('playwright/lib/server/webkit/wkConnection');3const { createDispatchListener } = require('playwright/lib/server/webkit');4const { connect } = require('playwright/lib/server/webkit/wkConnection');5const listener = createDispatchListener();6const connection = await connect({7  onMessage: listener.onMessage.bind(listener),8  onClose: () => {},9});10const { Page } = connection.rootSession;11await Page.enable();12Page.loadEventFired(async () => {13  console.log('Page loaded!');14  await connection.close();15});16const { createDispatchListener } = require('playwright/lib/server/webkit');17const { connect } = require('playwright/lib/server/webkit/wkConnection');18const listener = createDispatchListener();19const connection = await connect({20  onMessage: listener.onMessage.bind(listener),21  onClose: () => {},22});23const { Page } = connection.rootSession;24await Page.enable();25Page.loadEventFired(async () => {26  console.log('Page loaded!');27  await connection.close();28});29const { createDispatchListener } = require('playwright/lib/server/webkit');30const { connect } = require('playwright/lib/server/webkit/wkConnection');31const listener = createDispatchListener();32const connection = await connect({33  onMessage: listener.onMessage.bind(listener),34  onClose: () => {},35});36const { Page } = connection.rootSession;37await Page.enable();38Page.loadEventFired(async () => {39  console.log('Page loaded!');40  await connection.close();41});42const { createDispatchListener } = require('playwright/lib/server/webkit');43const { connect } = require('playwright/lib/server/webkit/w

Using AI Code Generation

1const { createDispatchListener } = require('playwright/lib/utils/dispatcher');2const { test } = require('playwright');3const { chromium } = require('playwright');4const path = require('path');5(async () => {6  const browser = await chromium.launch();7  const context = await browser.newContext();8  const page = await context.newPage();9  const listener = createDispatchListener(page);10  await listener.listenTo('page', 'console');11  await page.evaluate(() => console.log('foo'));12  const message = await listener.nextMessage();13  console.log(message.text());14  await browser.close();15})();16const { createDispatchListener } = require('playwright/lib/utils/dispatcher');17const { test } = require('playwright');18const { chromium } = require('playwright');19const path = require('path');20(async () => {21  const browser = await chromium.launch();22  const context = await browser.newContext();23  const page = await context.newPage();24  const listener = createDispatchListener(page);25  await listener.listenTo('page', 'console');26  await page.evaluate(() => console.log('foo'));27  const message = await listener.nextMessage();28  console.log(message.text());29  await browser.close();30})();31const { createDispatchListener } = require('playwright/lib/utils/dispatcher');32const { test } = require('playwright');33const { chromium } = require('playwright');34const path = require('path');35(async () => {36  const browser = await chromium.launch();37  const context = await browser.newContext();38  const page = await context.newPage();39  const listener = createDispatchListener(page);40  await listener.listenTo('page', 'console');41  await page.evaluate(() => console.log('foo'));42  const message = await listener.nextMessage();43  console.log(message.text());44  await browser.close();45})();46const { createDispatchListener } = require('playwright/lib/utils/dispatcher');47const { test } = require

Using AI Code Generation

1const { createDispatchListener } = require('playwright/lib/server/browserType');2const path = require('path');3const { chromium } = require('playwright');4const listener = createDispatchListener();5listener.on('browser', async (browser) => {6  console.log('browser created');7  browser.on('close', () => {8    console.log('browser closed');9  });10});11(async () => {12  const browser = await chromium.launch({ headless: false });13  await browser.close();14  await listener.dispose();15})();

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.