How to use _onBinding method in Playwright Internal

Best JavaScript code snippet using playwright-internal

page.js

Source: page.js Github

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...87 this._closed = initializer.isClosed;88 this._opener = Page.fromNullable(initializer.opener);89 this._channel.on('bindingCall', ({90 binding91 }) => this._onBinding(BindingCall.from(binding)));92 this._channel.on('close', () => this._onClose());93 this._channel.on('console', ({94 message95 }) => this.emit(_events.Events.Page.Console, _consoleMessage.ConsoleMessage.from(message)));96 this._channel.on('crash', () => this._onCrash());97 this._channel.on('dialog', ({98 dialog99 }) => {100 const dialogObj = _dialog.Dialog.from(dialog);101 if (!this.emit(_events.Events.Page.Dialog, dialogObj)) {102 if (dialogObj.type() === 'beforeunload') dialog.accept({}).catch(() => {});else dialog.dismiss().catch(() => {});103 }104 });105 this._channel.on('domcontentloaded', () => this.emit(_events.Events.Page.DOMContentLoaded, this));106 this._channel.on('download', ({107 url,108 suggestedFilename,109 artifact110 }) => {111 const artifactObject = _artifact.Artifact.from(artifact);112 this.emit(_events.Events.Page.Download, new _download.Download(this, url, suggestedFilename, artifactObject));113 });114 this._channel.on('fileChooser', ({115 element,116 isMultiple117 }) => this.emit(_events.Events.Page.FileChooser, new _fileChooser.FileChooser(this, _elementHandle.ElementHandle.from(element), isMultiple)));118 this._channel.on('frameAttached', ({119 frame120 }) => this._onFrameAttached(_frame.Frame.from(frame)));121 this._channel.on('frameDetached', ({122 frame123 }) => this._onFrameDetached(_frame.Frame.from(frame)));124 this._channel.on('load', () => this.emit(_events.Events.Page.Load, this));125 this._channel.on('pageError', ({126 error127 }) => this.emit(_events.Events.Page.PageError, (0, _serializers.parseError)(error)));128 this._channel.on('route', ({129 route,130 request131 }) => this._onRoute(_network.Route.from(route), _network.Request.from(request)));132 this._channel.on('video', ({133 artifact134 }) => {135 const artifactObject = _artifact.Artifact.from(artifact);136 this._forceVideo()._artifactReady(artifactObject);137 });138 this._channel.on('webSocket', ({139 webSocket140 }) => this.emit(_events.Events.Page.WebSocket, _network.WebSocket.from(webSocket)));141 this._channel.on('worker', ({142 worker143 }) => this._onWorker(_worker.Worker.from(worker)));144 this.coverage = new _coverage.Coverage(this._channel);145 this._closedOrCrashedPromise = Promise.race([new Promise(f => this.once(_events.Events.Page.Close, f)), new Promise(f => this.once(_events.Events.Page.Crash, f))]);146 }147 _onFrameAttached(frame) {148 frame._page = this;149 this._frames.add(frame);150 if (frame._parentFrame) frame._parentFrame._childFrames.add(frame);151 this.emit(_events.Events.Page.FrameAttached, frame);152 }153 _onFrameDetached(frame) {154 this._frames.delete(frame);155 frame._detached = true;156 if (frame._parentFrame) frame._parentFrame._childFrames.delete(frame);157 this.emit(_events.Events.Page.FrameDetached, frame);158 }159 _onRoute(route, request) {160 for (const routeHandler of this._routes) {161 if (routeHandler.matches(request.url())) {162 try {163 routeHandler.handle(route, request);164 } finally {165 if (!routeHandler.isActive()) {166 this._routes.splice(this._routes.indexOf(routeHandler), 1);167 if (!this._routes.length) this._wrapApiCall(() => this._disableInterception(), true).catch(() => {});168 }169 }170 return;171 }172 }173 this._browserContext._onRoute(route, request);174 }175 async _onBinding(bindingCall) {176 const func = this._bindings.get(bindingCall._initializer.name);177 if (func) {178 await bindingCall.call(func);179 return;180 }181 await this._browserContext._onBinding(bindingCall);182 }183 _onWorker(worker) {184 this._workers.add(worker);185 worker._page = this;186 this.emit(_events.Events.Page.Worker, worker);187 }188 _onClose() {189 this._closed = true;190 this._browserContext._pages.delete(this);191 this._browserContext._backgroundPages.delete(this);192 this.emit(_events.Events.Page.Close, this);193 }194 _onCrash() {195 this.emit(_events.Events.Page.Crash, this);...

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browserContext.js

Source: browserContext.js Github

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...71 this.tracing = new _tracing.Tracing(this);72 this.request = _fetch.APIRequestContext.from(initializer.APIRequestContext);73 this._channel.on('bindingCall', ({74 binding75 }) => this._onBinding(_page.BindingCall.from(binding)));76 this._channel.on('close', () => this._onClose());77 this._channel.on('page', ({78 page79 }) => this._onPage(_page.Page.from(page)));80 this._channel.on('route', ({81 route,82 request83 }) => this._onRoute(network.Route.from(route), network.Request.from(request)));84 this._channel.on('backgroundPage', ({85 page86 }) => {87 const backgroundPage = _page.Page.from(page);88 this._backgroundPages.add(backgroundPage);89 this.emit(_events.Events.BrowserContext.BackgroundPage, backgroundPage);90 });91 this._channel.on('serviceWorker', ({92 worker93 }) => {94 const serviceWorker = _worker.Worker.from(worker);95 serviceWorker._context = this;96 this._serviceWorkers.add(serviceWorker);97 this.emit(_events.Events.BrowserContext.ServiceWorker, serviceWorker);98 });99 this._channel.on('request', ({100 request,101 page102 }) => this._onRequest(network.Request.from(request), _page.Page.fromNullable(page)));103 this._channel.on('requestFailed', ({104 request,105 failureText,106 responseEndTiming,107 page108 }) => this._onRequestFailed(network.Request.from(request), responseEndTiming, failureText, _page.Page.fromNullable(page)));109 this._channel.on('requestFinished', params => this._onRequestFinished(params));110 this._channel.on('response', ({111 response,112 page113 }) => this._onResponse(network.Response.from(response), _page.Page.fromNullable(page)));114 this._closedPromise = new Promise(f => this.once(_events.Events.BrowserContext.Close, f));115 }116 _setBrowserType(browserType) {117 this._browserType = browserType;118 browserType._contexts.add(this);119 }120 _onPage(page) {121 this._pages.add(page);122 this.emit(_events.Events.BrowserContext.Page, page);123 if (page._opener && !page._opener.isClosed()) page._opener.emit(_events.Events.Page.Popup, page);124 }125 _onRequest(request, page) {126 this.emit(_events.Events.BrowserContext.Request, request);127 if (page) page.emit(_events.Events.Page.Request, request);128 }129 _onResponse(response, page) {130 this.emit(_events.Events.BrowserContext.Response, response);131 if (page) page.emit(_events.Events.Page.Response, response);132 }133 _onRequestFailed(request, responseEndTiming, failureText, page) {134 request._failureText = failureText || null;135 if (request._timing) request._timing.responseEnd = responseEndTiming;136 this.emit(_events.Events.BrowserContext.RequestFailed, request);137 if (page) page.emit(_events.Events.Page.RequestFailed, request);138 }139 _onRequestFinished(params) {140 const {141 responseEndTiming142 } = params;143 const request = network.Request.from(params.request);144 const response = network.Response.fromNullable(params.response);145 const page = _page.Page.fromNullable(params.page);146 if (request._timing) request._timing.responseEnd = responseEndTiming;147 this.emit(_events.Events.BrowserContext.RequestFinished, request);148 if (page) page.emit(_events.Events.Page.RequestFinished, request);149 if (response) response._finishedPromise.resolve();150 }151 _onRoute(route, request) {152 for (const routeHandler of this._routes) {153 if (routeHandler.matches(request.url())) {154 try {155 routeHandler.handle(route, request);156 } finally {157 if (!routeHandler.isActive()) {158 this._routes.splice(this._routes.indexOf(routeHandler), 1);159 if (!this._routes.length) this._wrapApiCall(() => this._disableInterception(), true).catch(() => {});160 }161 }162 return;163 }164 } /​/​ it can race with BrowserContext.close() which then throws since its closed165 route._internalContinue();166 }167 async _onBinding(bindingCall) {168 const func = this._bindings.get(bindingCall._initializer.name);169 if (!func) return;170 await bindingCall.call(func);171 }172 setDefaultNavigationTimeout(timeout) {173 this._timeoutSettings.setDefaultNavigationTimeout(timeout);174 this._wrapApiCall(async () => {175 this._channel.setDefaultNavigationTimeoutNoReply({176 timeout177 });178 }, true);179 }180 setDefaultTimeout(timeout) {181 this._timeoutSettings.setDefaultTimeout(timeout);...

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PeerSocket.js

Source: PeerSocket.js Github

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1var _ = require('lodash');2var Promise = require('bluebird');3var EventEmitter = require('events').EventEmitter;4/​*5 * TODO6 * shim out sails-specific way of communication?7 * large assumptions that socket is a sails.io.js hacked up socket.io8 * and that communication is largely done via the pubsub way through the server9 * how to handle failures? emits could fail.10 * we should probably do it the node.js way of emitting an error but those are fraught with danger11*/​12function PeerSocket(socket, id, localId, remoteId) {13 /​/​ underlying socket, non-exclusive to this peer socket14 this._socket = socket;15 /​/​ id of the connection16 this._id = id;17 /​/​ unique peer identifiers18 this._localId = localId;19 this._remoteId = remoteId;20 /​/​ our proxy event emitter21 /​/​ we let it handle on and emit to it when we get something on the socket really destined for us22 this._emitter = new EventEmitter();23 var bindLower = _.bind(function bindLower(lower, methods) {24 var that = this;25 if (!_.isArray(methods)) {26 methods = [methods];27 }28 _.forEach(methods, function(name) {29 that[name] = _.bind(lower[name], lower);30 });31 }, this);32 bindLower(this._emitter, [33 'on', 'addListener', 'once',34 'removeListener', 'removeAllListeners',35 'setMaxListeners', 'listeners'36 ]);37 this._onBinding = _.bind(this._on, this);38 this._socket.on('peerconnection', this._onBinding);39}40PeerSocket.prototype._close = function PeerSocket_Close(reason) {41 var that = this;42 /​/​ let's emit a destroy to the other side43 this.emit('close', reason);44 /​/​ now let's destroy on the server45 /​*46 this._socket.post('/​peerconnection/​destroy', { id: this._id }, function(peerDestruction) {47 if (peerDestruction.status !== 200) {48 console.error('Could not destroy peer connection', that._id, 'for reason "' + reason + '"');49 }50 });51 */​52 /​/​ remove listener on socket after a small delay53 /​/​ TODO - good reason to do this? rtc/​reset does, but why?54 setTimeout(function() {55 that._socket.removeListener('peerconnection', that._onBinding);56 }, 250);57 return this;58};59PeerSocket.prototype._emit = function PeerSocket_Emit(event, data) {60 var that = this;61 this._socket.post('/​peerconnection/​message',62 {63 id: this._id,64 data: { type: event, payload: data }65 },66 function gotPeerMessage(peerMessage) {67 if (peerMessage.status !== 200) {68 console.error('Could not message', { type: event, payload: data }, 'via peer connection', that._id);69 }70 });71 return this;72};73PeerSocket.prototype._on = function PeerSocket_On(message) {74 if (message.verb === 'messaged'75 && message.id === this._id76 && message.data && message.data.type && message.data.payload) {77 this._emitter.emit('data', message.data);78 this._emitter.emit(message.data.type, message.data.payload);79 } else if (message.id === this._id && message.verb && message.data) {80 this._emitter.emit('data', message.data);81 this._emitter.emit(message.verb, message.data);82 }83};84PeerSocket.prototype.close = function PeerSocketClose(reason) {85 /​/​ underlying close86 return this._close(reason);87};88PeerSocket.prototype.emit = function PeerSocketEmit(event, data) {89 return this._emit(event, data);90};...

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View2.controller.js

Source: View2.controller.js Github

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1sap.ui.define([2 "sap/​ui/​core/​mvc/​Controller",3 "sam/​zairbus1/​utils/​formatter",4 "sap/​ui/​model/​json/​JSONModel",5 "sap/​ui/​core/​Fragment"6], function (7 Controller,8 formatter,9 JSONModel,10 Fragment11) {12 "use strict";13 return Controller.extend("sam.zairbus1.controller.View2", {14 formatter: formatter,15 onInit: function () {16 this.oLocalModel = new JSONModel();17 this.oLocalModel.setData({18 "SalesOrderData": {19 "Vbeln": "",20 "Vbtyp": "",21 "Vkorg": "",22 "Spart": "",23 "Netwr": "",24 "Waerk": "",25 "Kunnr": "",26 }27 });28 this.getView().setModel(this.oLocalModel, "oLocal");29 this.oRouter = this.getOwnerComponent().getRouter();30 this.oRouter.getRoute("Detail").attachPatternMatched(this._onBinding, this);31 },32 _onBinding: function (oId) {33 debugger;34 var oVbeln = oId.getParameter("arguments").Vbeln;35 var oPath = "/​VbakSet('" + oVbeln + "')";36 var oValue = this.getView().getModel().getProperty(oPath);37 /​/​ var oData = [];38 var oLocalModel = this.getView().getModel("oLocal");39 oLocalModel.setProperty("/​SalesOrderData", oValue);40 this.getView().bindElement(oPath);41 },42 onEdit: function (oEvent) {43 debugger; 44 this._onFormAction(true, false);45 },46 onCancel: function (oEvent) {47 48 this._onFormAction(false, true);s49 },50 _onFormAction: function (oChange, oDisplay) {51 var oChangeForm = this.getView().byId("idSimpleFormChange");52 var oDisplayFOrm = this.getView().byId("idSimpleFormDisplay")53 oChangeForm.setVisible(oChange);54 oDisplayFOrm.setVisible(oDisplay);55 }56 });...

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StickyView.js

Source: StickyView.js Github

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1define(['agile-app'], function(Agile) {2 'use strict';34 return Agile.View.extend({56 bindedTo: '[data-selector="sticky-view"]',78 ui: {9 boton : 'span[data-selector="sticky-button"]'10 },1112 moduleEvents: {13 'player:opened': '_onPlayerOpened',14 'player:closed': '_onPlayerClosed'15 },1617 events: {18 'click [data-selector="sticky-button"]': '_triggerTogglePlayer'19 },2021 _onBinding: function() {22 this.ui.boton.hide();23 },2425 _onPlayerOpened: function() {26 this.ui.boton.addClass('open');27 },2829 _onPlayerClosed: function() {30 this.ui.boton.removeClass('open');31 },3233 _triggerTogglePlayer: function(data) {34 this.trigger('module:toggle:player');35 }36 }); ...

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Using AI Code Generation

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1const { _onBinding } = require('playwright/​lib/​server/​chromium/​crBrowser');2const { _onBinding } = require('playwright/​lib/​server/​firefox/​ffBrowser');3const { _onBinding } = require('playwright/​lib/​server/​webkit/​wkBrowser');4const { _onBinding } = require('playwright-core/​lib/​server/​chromium/​crBrowser');5const { _onBinding } = require('playwright-core/​lib/​server/​firefox/​ffBrowser');6const { _onBinding } = require('playwright-core/​lib/​server/​webkit/​wkBrowser');7const { _onBinding } = require('playwright/​lib/​server/​chromium/​crBrowser');8const { _onBinding } = require('playwright/​lib/​server/​firefox/​ffBrowser');9const { _onBinding } = require('playwright/​lib/​server/​webkit/​wkBrowser');10const { _onBinding } = require('playwright-core/​lib/​server/​chromium/​crBrowser');11const { _onBinding } = require('playwright-core/​lib/​server/​firefox/​ffBrowser');12const { _onBinding } = require('playwright-core/​lib/​server/​webkit/​wkBrowser');13const { _onBinding } = require('playwright/​lib/​server/​chromium/​crBrowser');14const { _onBinding } = require('playwright/​lib/​server/​firefox/​ffBrowser');15const { _onBinding } = require('playwright/​lib/​server/​webkit/​wkBrowser');16const { _onBinding } = require('playwright-core/​lib/​server/​chromium/​crBrowser');17const { _onBinding } = require('playwright-core/​lib/​server/​firefox/​ffBrowser');18const { _onBinding } = require('playwright-core/​lib/​server/​webkit/​wkBrowser');19const { _onBinding } = require('playwright/​lib/​server/​chromium/​crBrowser');20const { _onBinding } = require('playwright/​lib/​server/​firefox/​ffBrowser');21const { _onBinding } = require('playwright/​lib/​server/​webkit/​wkBrowser');22const { _onBinding } = require('playwright-core/​lib/​server/​chromium/​crBrowser');23const { _onBinding } = require('playwright-core/​lib/​server/​firefox/​ffBrowser');

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Using AI Code Generation

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1const {chromium} = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const page = await browser.newPage();5 await page.route('**/​*', route => route.fulfill({6 }));7 await browser.close();8})();9 headers: { 'user-agent': 'Mozilla/​5.0 (X11; Linux x86_64) AppleWebKit/​537.36 (KHTML, like Gecko) Chrome/​79.0.3945.88 Safari/​537.36' },10 frame: Frame {11 _eventEmitter: EventEmitter { _events: [Object], _eventsCount: 2 },12 _page: Page {13 },14 _childFrames: Set {},15 _contextData: ContextData {

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Using AI Code Generation

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1const { chromium } = require('playwright');2const { _onBinding } = require('playwright/​lib/​server/​browserContext');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 _onBinding.call(context, 'myBinding', (source, ...args) => {8 console.log('myBinding', source, args);9 });10 await page.evaluate(() => {11 window['myBinding']('arg1', 'arg2');12 });13 await browser.close();14})();15const { chromium } = require('playwright');16const { _onBinding } = require('playwright/​lib/​server/​browserContext');17(async () => {18 const browser = await chromium.launch();19 const context = await browser.newContext();20 const page = await context.newPage();21 _onBinding.call(context, 'myBinding', (source, ...args) => {22 console.log('myBinding', source, args);23 });24 await page.evaluate(() => {25 window['myBinding']('arg1', 'arg2');26 });27 await browser.close();28})();29const { chromium } = require('playwright');30const { _onBinding } = require('playwright/​lib/​server/​browserContext');31(async () => {32 const browser = await chromium.launch();33 const context = await browser.newContext();34 const page = await context.newPage();35 _onBinding.call(context, 'myBinding', (source, ...args) => {36 console.log('myBinding', source, args);37 });38 await page.evaluate(() => {39 window['myBinding']('arg1', 'arg2');40 });41 await browser.close();42})();43const { chromium } = require('playwright');44const { _onBinding } = require('playwright/​lib/​server/​browserContext');45(async () => {46 const browser = await chromium.launch();47 const context = await browser.newContext();48 const page = await context.newPage();49 _onBinding.call(context, 'myBinding', (source

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Using AI Code Generation

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1const { PlaywrightInternal } = require('playwright-core/​lib/​server/​playwright');2const playwright = new PlaywrightInternal();3playwright._onBinding('test', (source, name, ...args) => {4 console.log('test binding called');5 return 'test';6});7playwright._onBinding('test2', (source, name, ...args) => {8 console.log('test2 binding called');9 return 'test2';10});11playwright._onBinding('test3', (source, name, ...args) => {12 console.log('test3 binding called');13 return 'test3';14});15const { PlaywrightInternal } = require('playwright-core/​lib/​server/​playwright');16const playwright = new PlaywrightInternal();17playwright._onBinding('test', (source, name, ...args) => {18 console.log('test binding called');19 return 'test';20});21playwright._onBinding('test2', (source, name, ...args) => {22 console.log('test2 binding called');23 return 'test2';24});25playwright._onBinding('test3', (source, name, ...args) => {26 console.log('test3 binding called');27 return 'test3';28});29const { PlaywrightInternal } = require('playwright-core/​lib/​server/​playwright');30const playwright = new PlaywrightInternal();31playwright._onBinding('test', (source, name, ...args) => {32 console.log('test binding called');33 return 'test';34});35playwright._onBinding('test2', (source, name, ...args) => {36 console.log('test2 binding called');37 return 'test2';38});39playwright._onBinding('test3', (source, name, ...args) => {40 console.log('test3 binding called');41 return 'test3';42});43const { PlaywrightInternal } = require('playwright-core/​lib/​server/​playwright');44const playwright = new PlaywrightInternal();45playwright._onBinding('test', (source, name, ...args) => {46 console.log('test binding called');

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Using AI Code Generation

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1const { _onBinding } = require('playwright/​lib/​server/​browserContext.js');2_onBinding.call(browserContext, (source, ...args) => {3 console.log('binding called:', source, args);4 return { result: 'foo' };5});6const { _onBinding } = require('playwright/​lib/​server/​browserContext.js');7_onBinding.call(browserContext, (source, ...args) => {8 console.log('binding called:', source, args);9 return { result: 'foo' };10});11const { _onBinding } = require('playwright/​lib/​server/​browserContext.js');12_onBinding.call(browserContext, (source, ...args) => {13 console.log('binding called:', source, args);14 return { result: 'foo' };15});16const { _onBinding } = require('playwright/​lib/​server/​browserContext.js');17_onBinding.call(browserContext, (source, ...args) => {18 console.log('binding called:', source, args);19 return { result: 'foo' };20});21const { _onBinding } = require('playwright/​lib/​server/​browserContext.js');22_onBinding.call(browserContext, (source, ...args) => {23 console.log('binding called:', source, args);24 return { result: 'foo' };25});26const { _onBinding } = require('playwright/​lib/​server/​browserContext.js');27_onBinding.call(browserContext, (source, ...args) => {28 console.log('binding called:', source, args);29 return { result: 'foo' };30});31const { _onBinding } = require('playwright/​lib/​server/​browserContext.js');32_onBinding.call(browserContext, (source, ...args) => {33 console.log('binding called:', source, args);34 return { result: 'foo' };35});36const { _onBinding } = require('playwright/​lib/​server/​browserContext.js');37_onBinding.call(browserContext, (source, ...args) => {38 console.log('

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Using AI Code Generation

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1const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');2const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');3const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');4const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');5const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');6const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');7const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');8const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');9const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');10const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');11const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');12const { _onBinding } = require('playwright/​lib/​server/​chromium/​crPage');

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Using AI Code Generation

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1const { _onBinding } = require('playwright/​lib/​server/​webkit/​wkPage');2_onBinding.call(page, 'foo', () => {3 console.log(`foo was called`);4});5page.evaluate(() => {6 window['foo']();7 window['foo']();8 window['foo']();9 window['foo']();10});11const { _onBinding } = require('playwright/​lib/​server/​webkit/​wkPage');12_onBinding.call(page, 'foo', () => {13 console.log(`foo was called`);14});15page.evaluate(() => {16 window['foo']();17 window['foo']();18 window['foo']();19 window['foo']();20});21const { _onBinding } = require('playwright/​lib/​server/​webkit/​wkPage');22_onBinding.call(page, 'foo', () => {23 console.log(`foo was called`);24});25page.evaluate(() => {26 window['foo']();27 window['foo']();28 window['foo']();29 window['foo']();30});31const { _onBinding } = require('playwright/​lib/​server/​webkit/​wkPage');32_onBinding.call(page, 'foo', () => {33 console.log(`foo was called`);34});35page.evaluate(() => {36 window['foo']();37 window['foo']();38 window['foo']();39 window['foo']();40});41const { _onBinding } = require('playwright/​lib/​server/​webkit/​wkPage');42_onBinding.call(page, 'foo', () => {43 console.log(`foo was called`);44});45page.evaluate(() => {

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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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  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
  6. 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.
  7. 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.
  8. 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.
  9. 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.
  10. 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.
  11. 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.
  12. Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.

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