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How to use startScreencast method in Playwright Internal
Best JavaScript code snippet using playwright-internal
app.js
Source:app.js 
1function ScreenCaster(config) {2 this.enabled = config.enabled === true;3 this.watcher = config.watcher === true;4 this.showUpdates = true;5 this.stompClient = null;6 this.screenUpdateInterval = 250;7 this.currentPointerLocation = null;8 this.notificationStatus = {9 enabled: false10 };11 this.headers = {};12 this.init = function init() {13 this.headers["X-CSRF-TOKEN"] = $("meta[name=csrf]").attr("value");14 this.initWebSocketConnection();15 this.initNotes();16 if (this.watcher) {17 this.initScreenCast();18 return;19 }20 this.notificationStatus.enabled = false;21 this.setupNotesForm();22 this.initClipboardSupport();23 this.initDragAndDropSupport();24 };25 this.uploadFile = function uploadSingleFile(fileData) {26 console.log('uploading ' + fileData.name);27 this.uploadFileViaAjax({28 filename: fileData.name,29 data: fileData.data,30 contentType: fileData.type31 }, function (fileInfo) {32 if (!fileInfo) {33 return;34 }35 if (fileInfo.contentType.indexOf("image") === 0) {36 this.storeNote({37 text: "### " + fileInfo.name + "\n" +38 "<a href='/files/" + fileInfo.id + "' target='_blank' rel='noopener noreferrer'>" +39 "![Screenshot](/files/" + fileInfo.id + ")<span class=\"hint-fullscreen glyphicon glyphicon-fullscreen\" title='Show fullscreen'></span>"40 + "</a>"41 });42 } else {43 this.storeNote({44 text: "### File " + "<a href='/files/" + fileInfo.id + "' target='_blank' rel='noopener noreferrer'>" + fileInfo.name + "</a>"45 });46 }47 }.bind(this));48 }.bind(this);49 this.initDragAndDropSupport = function initDragAndDropSupport() {50 function removeDragData(ev) {51 console.log('Removing drag data');52 if (ev.dataTransfer.items) {53 // Use DataTransferItemList interface to remove the drag data54 ev.dataTransfer.items.clear();55 } else {56 // Use DataTransfer interface to remove the drag data57 ev.dataTransfer.clearData();58 }59 }60 var htmlElement = document.querySelector("html");61 htmlElement.addEventListener("dragover", function(evt){62 evt.preventDefault();63 });64 htmlElement.addEventListener("drop", function(evt){65 evt.preventDefault();66 });67 var notesDialog = document.querySelector("#notesDialog");68 notesDialog.addEventListener("drop", function(evt){69 evt.preventDefault();70 let dataTrans = evt.dataTransfer;71 if (dataTrans.items) {72 // Use DataTransferItemList interface to access the file(s)73 for (var i = 0; i < dataTrans.items.length; i++) {74 // If dropped items aren't files, reject them75 if (dataTrans.items[i].kind === 'file') {76 this.uploadFile(this.toFileData(dataTrans.items[i].getAsFile()));77 }78 }79 } else {80 // Use DataTransfer interface to access the file(s)81 for (var i = 0; i < dataTrans.files.length; i++) {82 this.uploadFile(this.toFileData(dataTrans.files[i]));83 }84 }85 // TODO cleanup dataTransfer86 // removeDragData(evt);87 }.bind(this));88 }.bind(this);89 this.toFileData = function toFileData (file) {90 return {91 name: file.name,92 type: file.type,93 data: file94 }95 }.bind(this);96 this.initNotes = function initNotes() {97 this.loadNotes();98 }.bind(this);99 this.initScreenCast = function initScreenCast() {100 this.$screenImage = $("#screen")[0];101 this.$overlay = $("#overlay")[0];102 this.initScreenVisibilityHandling();103 this.initNotifications();104 this.initResizeTools();105 }.bind(this);106 this.start = function start() {107 this.startScreenCast();108 this.startPointerAnimation();109 }.bind(this);110 this.initWebSocketConnection = function initWebSocketConnection() {111 this.stompClient = Stomp.over(new SockJS("/screencaster/ws"));112 this.stompClient.debug = null;113 this.stompClient.connect({}, function (frame) {114 console.log('Connected: ' + frame);115 this.stompClient.subscribe("/topic/notes", function (noteMessage) {116 this.onNoteEvent(JSON.parse(noteMessage.body));117 }.bind(this));118 this.stompClient.subscribe("/topic/settings", function (settingsMessage) {119 this.onSettingsEvent(JSON.parse(settingsMessage.body));120 }.bind(this));121 this.stompClient.subscribe("/topic/pointer", function (pointerMessage) {122 this.onPointerEvent(JSON.parse(pointerMessage.body));123 }.bind(this));124 }.bind(this));125 }.bind(this);126 this.onPointerEvent = function onPointerEvent(pointerEvent) {127 // console.log(pointerEvent);128 this.currentPointerLocation = pointerEvent;129 }.bind(this);130 this.onSettingsEvent = function onSettingsEvent(settingsEvent) {131 if (settingsEvent.type === "updated") {132 var enabledChanged = this.enabled !== settingsEvent.settings.castEnabled;133 this.enabled = settingsEvent.settings.castEnabled;134 if (this.enabled && enabledChanged) {135 this.startScreenCast();136 }137 $("#screenCastStatus").text(this.enabled ? "active" : "not active");138 }139 }.bind(this);140 this.scrollToLatestNote = function scrollToLatestNote() {141 var $notesListContainer = $("#notesListContainer");142 $notesListContainer.animate({scrollTop: $notesListContainer.prop("scrollHeight")}, 250);143 };144 this.onNoteEvent = function onNoteEvent(noteEvent) {145 if (noteEvent.type === "created") {146 console.log("note created", noteEvent);147 this.addNote(noteEvent.note);148 if (this.notificationStatus.enabled) {149 var notification = new Notification("New notes", {150 body: "there are new notes available",151 icon: "/img/new-note-icon-128x128.png",152 timestamp: Date.now()153 });154 setTimeout(notification.close.bind(notification), 3000);155 }156 } else if (noteEvent.type === "deleted") {157 console.log("note deleted", noteEvent);158 $("li[data-note-id='" + noteEvent.noteId + "']").remove();159 } else if (noteEvent.type === "updated") {160 console.log("note updated", noteEvent);161 var $noteContent = $("span[data-note-id='" + noteEvent.note.id + "'].note-content");162 $noteContent.html(noteEvent.note.html);163 $noteContent.show();164 var $rawContent = $("textarea[data-note-id='" + noteEvent.note.id + "'].raw-content");165 $rawContent.text(noteEvent.note.text);166 $rawContent.hide();167 }168 this.updateUnreadNotesCount();169 }.bind(this);170 this.addNote = function addNote(note) {171 var template = $('#note-template').html();172 Mustache.parse(template); // optional, speeds up future uses173 // hack to wrap element in span174 note.html = "<span data-note-id=\"" + note.id + "\" class=\"note-content\">" + note.html + "</span>";175 note.createdAtHuman = moment(note.createdAt).format("DD.MM.YY HH:mm:ss");176 var renderedNote = Mustache.render(template, note).trim();177 var noteElement = $("#notesList").prepend(renderedNote);178 // FIXME find a way to highlight only the added note179 Prism.highlightAll();180 };181 this.updateUnreadNotesCount = function updateUnreadNotesCount() {182 $("#unreadNotesCounter").text($(".note.new").length);183 };184 this.onNoteAction = function onNoteAction(event) {185 event.preventDefault();186 var button = event.currentTarget;187 var noteId = $(button.parentElement).data("note-id");188 var $rawContent = $("textarea[data-note-id='" + noteId + "'].raw-content");189 var $noteContent = $("span[data-note-id='" + noteId + "'].note-content");190 if (button.value === 'delete') {191 $.ajax({192 url: $(event.target.form).attr("action"),193 type: "delete",194 headers: this.headers195 }).done(function (response) {196 console.log("note deleted");197 });198 } else if (button.value === 'deleteAll') {199 if (!window.confirm("Delete all notes?")) {200 return;201 }202 $.ajax({203 url: "/notes",204 type: "delete",205 headers: this.headers206 }).done(function (response) {207 console.log("all notes deleted");208 $("li[data-note-id]").remove();209 });210 } else if (button.value === 'edit') {211 console.log("edit", button);212 $noteContent.hide();213 $rawContent.data("text-backup", $rawContent.text());214 $rawContent.show();215 $(button.parentElement).find("button[name='actionUpdate']").show()216 $(button.parentElement).find("button[name='actionReset']").show()217 } else if (button.value === 'update') {218 var note = {219 id: noteId,220 text: $rawContent.val()221 };222 this.updateNote(note);223 $(button.parentElement).find("button[name='actionUpdate']").hide();224 $(button.parentElement).find("button[name='actionReset']").hide();225 } else if (button.value === 'reset') {226 $rawContent.val($rawContent.data("text-backup"));227 $rawContent.data("text-backup", null);228 $(button.parentElement).find("button[name='actionUpdate']").hide();229 $(button.parentElement).find("button[name='actionReset']").hide();230 $noteContent.show();231 $rawContent.hide();232 }233 }.bind(this);234 this.markNoteAsRead = function markNoteAsRead(note) {235 var $note = $(note);236 $note.removeClass('new');237 $note.addClass('read');238 this.updateUnreadNotesCount();239 }.bind(this);240 this.loadNotes = function loadNotes() {241 $.getJSON("/notes", function (notes) {242 for (var i = 0; i < notes.length; i++) {243 this.addNote(notes[i]);244 }245 }.bind(this));246 }.bind(this);247 this.setupNotesForm = function setupNotesForm() {248 $("#notesForm").submit(function (event) {249 event.preventDefault();250 var note = {251 text: $("#txtNote").val()252 };253 this.storeNote(note);254 $("#notesForm")[0].reset();255 }.bind(this));256 $("#notesForm").keydown(function (keyEvent) {257 var ctrlAndEnterWasPressed = (keyEvent.ctrlKey || keyEvent.metaKey) && keyEvent.which == 13;258 if (ctrlAndEnterWasPressed) {259 $("#notesForm").submit();260 $("#txtNote").focus();261 event.preventDefault();262 return false;263 }264 return true;265 });266 }.bind(this);267 this.storeNote = function storeNote(note) {268 $.ajax({269 url: "/notes",270 type: "post",271 data: note,272 headers: this.headers273 }).done(function (response) { //274 // console.log(response);275 });276 }.bind(this);277 this.updateNote = function updateNote(note) {278 $.ajax({279 url: "/notes/" + note.id,280 type: "put",281 data: note,282 headers: this.headers283 }).done(function (response) { //284 // console.log(response);285 // FIXME find a way to highlight only the added note286 Prism.highlightAll();287 });288 }.bind(this);289 this.initClipboardSupport = function initClipboardSupport() {290 function onPaste(evt) {291 if (!evt.clipboardData) {292 return;293 }294 var items = evt.clipboardData.items;295 if (!items) {296 return;297 }298 if (items.length === 0) {299 return;300 }301 var currentItem = items[0];302 if (currentItem.type.indexOf("image") === -1) {303 return;304 }305 var blob = currentItem.getAsFile();306 this.uploadFile({307 name: "Screenshot " + moment(Date.now()).format("DD-MM-YY_HH-mm-ss"),308 data: blob,309 type: currentItem.type310 });311 }312 document.addEventListener('paste', onPaste.bind(this), false);313 }.bind(this);314 this.uploadFileViaAjax = function uploadFileViaAjax(fileData, callback) {315 var data = new FormData();316 data.append('file', fileData.data, fileData.filename);317 $.ajax({318 url: "/files",319 type: "post",320 enctype: 'multipart/form-data',321 data: data,322 processData: false,323 contentType: false,324 headers: this.headers,325 success: callback326 });327 }.bind(this);328 this.initScreenVisibilityHandling = function initScreenVisibilityHandling() {329 var hiddenAttributeName, visibilityChangeEventName;330 if (typeof document.hidden !== "undefined") { // Opera 12.10 and Firefox 18 and later support331 hiddenAttributeName = "hidden";332 visibilityChangeEventName = "visibilitychange";333 } else if (typeof document.msHidden !== "undefined") {334 hiddenAttributeName = "msHidden";335 visibilityChangeEventName = "msvisibilitychange";336 } else if (typeof document.webkitHidden !== "undefined") {337 hiddenAttributeName = "webkitHidden";338 visibilityChangeEventName = "webkitvisibilitychange";339 } else {340 // step out, since some older browsers don't support handling of visibility changes.341 return;342 }343 var handler = function () {344 if (document[hiddenAttributeName]) {345 document.title = "Paused...";346 console.log("stop updating");347 this.showUpdates = false;348 } else {349 document.title = "Active...";350 console.log("start updating");351 this.showUpdates = true;352 this.startScreenCast();353 }354 }.bind(this);355 document.addEventListener(visibilityChangeEventName, handler, false);356 }.bind(this);357 this.initNotifications = function initNotifications() {358 if (!("Notification" in window)) {359 console.log("This browser does not support system notifications");360 this.notificationStatus.enabled = false;361 return;362 }363 if (Notification.permission === "granted") {364 this.notificationStatus.enabled = true;365 return;366 }367 if (Notification.permission !== 'denied') {368 Notification.requestPermission(function (permission) {369 if (permission === "granted") {370 this.notificationStatus.enabled = true;371 }372 }.bind(this));373 }374 }.bind(this);375 this.initResizeTools = function initResizeTools() {376 // TODO fix resizing377 $("#screenContainer").onclick = function (evt) {378 $(this.$screenImage).toggleClass("screen-fit")379 };380 }.bind(this);381 /**382 * Starts the screenshot fetching383 *384 * @type {any}385 */386 this.startScreenCast = function startScreenCast() {387 if ("URLSearchParams" in window) {388 var urlParams = new URLSearchParams(window.location.search);389 if (urlParams.has("screenUpdateInterval")) {390 this.screenUpdateInterval = parseInt(urlParams.get("screenUpdateInterval"), 10);391 }392 }393 if (!this.$screenImage) {394 return;395 }396 this.$screenImage.onload = (function () {397 if (!this.enabled) {398 return;399 }400 if (!this.casterScreenDimensions) {401 // resize canvas...402 this.casterScreenDimensions = {403 w: this.$screenImage.naturalWidth,404 h: this.$screenImage.naturalHeight405 };406 this.$overlay.width = this.$screenImage.width;407 this.$overlay.height = this.$screenImage.height;408 }409 setTimeout(refreshImage.bind(this), this.screenUpdateInterval);410 }).bind(this);411 function refreshImage() {412 if (!this.showUpdates) {413 return;414 }415 console.log("screen update");416 this.$screenImage.src = "/screenshot.jpg?" + Date.now();417 }418 setTimeout(refreshImage.bind(this), this.screenUpdateInterval);419 }.bind(this);420 /**421 * Renders the remote mouse pointer422 */423 this.startPointerAnimation = function startPointerAnimation() {424 requestAnimationFrame(renderLoop.bind(this));425 var startTime = Date.now();426 var pulseDuration = 1.45;427 function renderLoop() {428 let pointerLocation = this.currentPointerLocation;429 let screenDimensions = this.casterScreenDimensions;430 if (pointerLocation && screenDimensions) {431 var time = (Date.now() - startTime) / 1000.0;432 var pulseCompletion = (time % pulseDuration) / pulseDuration;433 var cvs = this.$overlay;434 var context = cvs.getContext('2d');435 context.globalAlpha = 0.95;436 context.clearRect(0, 0, cvs.width, cvs.height);437 var scalingW = cvs.width / screenDimensions.w;438 var scalingH = cvs.height / screenDimensions.h;439 var radius = 4;440 context.beginPath();441 context.arc(pointerLocation.x * scalingW, pointerLocation.y * scalingH, radius, 0, 2 * Math.PI, false);442 context.fillStyle = 'magenta';443 context.fill();444 context.beginPath();445 context.arc(pointerLocation.x * scalingW, pointerLocation.y * scalingH, radius + pulseCompletion * 10, 0, 2 * Math.PI, false);446 context.lineWidth = 1;447 context.strokeStyle = 'magenta';448 context.globalAlpha = 1 - pulseCompletion;449 context.stroke();450 }451 requestAnimationFrame(renderLoop.bind(this));452 }453 }...
frameCapture.js
Source:frameCapture.js
...5// https://chromedevtools.github.io/devtools-protocol/tot/Page/#type-ScreencastFrameMetadata6// https://github.com/shaynet10/puppeteer-mass-screenshots/blob/main/index.js7// Very fast but needs synchronization8// Captures whole browser window9async function startScreencast({ logger, format, page, jpegQuality }) {10 const client = await page.target().createCDPSession();11 const options = {12 format,13 quality: jpegQuality || undefined,14 // maxWidth: width,15 // maxHeight: height,16 everyNthFrame: 1,17 };18 // await client.send('Page.startScreencast', options);19 let screenCastFrameCb;20 // eslint-disable-next-line no-inner-declarations21 function onScreencastFrame(frame) {22 if (screenCastFrameCb) {23 screenCastFrameCb(frame);24 screenCastFrameCb = undefined;25 }26 }27 client.on('Page.screencastFrame', async (frameObject) => {28 // logger.log(frameObject.metadata, frameObject.sessionId);29 try {30 const buf = Buffer.from(frameObject.data, 'base64');31 await client.send('Page.screencastFrameAck', { sessionId: frameObject.sessionId });32 // Sometimes it hangs if we start it only once, so restart for every frame33 // Also we avoid duplicates34 await client.send('Page.stopScreencast');35 onScreencastFrame(buf);36 } catch (err) {37 logger.error('Page.screencastFrame', err);38 }39 });40 async function captureFrame(frameNum) {41 const numRetries = 5;42 const timeoutVal = 5000;43 // Sometimes we never receive the Page.screencastFrame event44 // This can sometimes be triggered on MacOS by doing Exposé45 for (let i = 0; i < numRetries; i += 1) {46 try {47 // eslint-disable-next-line no-loop-func48 const promise = new Promise((resolve) => { screenCastFrameCb = resolve; });49 // eslint-disable-next-line no-await-in-loop50 await client.send('Page.startScreencast', options);51 // eslint-disable-next-line no-await-in-loop52 const frame = await pTimeout(promise, timeoutVal, `Page.screencastFrame Timeout after ${timeoutVal}ms`);53 if (!frame) throw new Error('Empty frame');54 return frame;55 } catch (err) {56 logger.error('captureFrame failed', frameNum, err);57 logger.log('Retrying', i + 1);58 // eslint-disable-next-line no-await-in-loop59 await client.send('Page.stopScreencast');60 }61 }62 throw new Error(`No Page.screencastFrame after ${numRetries} retries`);63 }64 return { captureFrame };65}66// Alternative simpler implementation:67/*68async function startScreencast({ format, page, jpegQuality }) {69 const client = await page.target().createCDPSession();70 const options = {71 format,72 quality: jpegQuality || undefined,73 // maxWidth: width,74 // maxHeight: height,75 everyNthFrame: 1,76 };77 async function captureFrame() {78 return new Promise((resolve) => {79 client.once('Page.screencastFrame', async (frameObject) => {80 // logger.log('Page.screencastFrame');81 // logger.log(frameObject.metadata, frameObject.sessionId);82 if (!frameObject.data) throw new Error('No frame captured');...
runner.js
Source:runner.js
...12 await chromy.goto(url)13 await chromy.click('.i-amphtml-story-experiment-error button')14 // await Page.navigate({url: url})15 // await Page.loadEventFired()16 // await Page.startScreencast({format: 'png', everyNthFrame: 1})17 //18 // let counter = 019 // while (counter < 100) {20 // const {data, metadata, sessionId} = await Page.screencastFrame()21 // console.log(data, metadata, sessionId)22 // counter++23 // await Page.screencastFrameAck({sessionId: sessionId})24 // }25 await chromy.goto(url)26 await chromy.wait(500)27 await chromy.evaluate(() => {28 console.log(213)29 let problem = document.querySelector('.i-amphtml-story-no-rotation-overlay')30 if (problem) {31 problem.className = ''32 }33 })34 // await chromy.startScreencast({format: 'png', everyNthFrame: 1})35 await chromy.startScreencast(async (photo) => {36 frame++37 // fs.writeFileSync('results/out' + frame + '.png', photo.data)38 if (frame >= 50) {39 console.log('Finish')40 return chromy.stopScreencast()41 }42 await fs.writeFile('results/out' + frame + '.png', photo.data, 'base64')43 console.log(photo.metadata, frame)44 }, {45 format: 'png',46 quality: 100,47 maxWidth: 400,48 maxHeight: 720,49 everyNthFrame: 1...
page.js
Source:page.js
1var util = require('util')2var Core = require('../lib/core')3var PageFrame = require('../objects/pageFrame')4function Page (server, client) {5 this.initialize(server, client)6 this.server.on('Page.enable', this.enable.bind(this))7 this.server.on('Page.navigate', this.navigate.bind(this))8 this.server.on('Page.reload', this.reload.bind(this))9 this.server.on('Page.canEmulate', this.canEmulate.bind(this))10 this.server.on('Page.hasTouchInputs', this.hasTouchInputs.bind(this))11 this.server.on('Page.canScreencast', this.canScreencast.bind(this))12 // this.server.on('Page.startScreencast', this.startScreencast.bind(this))13 // this.server.on('Page.stopScreencast', this.stopScreencast.bind(this))14 this.screncastingInterval;15}16util.inherits(Page, Core)17Page.prototype.enable = function (request) {18 request.reply(true)19}20Page.prototype.canEmulate = function (request) {21 request.reply(false)22}23Page.prototype.canScreencast = function (request) {24 request.reply({25 result: false26 })27}28Page.prototype.hasTouchInputs = function (request) {29 request.reply(false)30}31Page.prototype.reload = function (request) {32 var page = this.client.getPage(request.data.pageId)33 page.reload()34}35Page.prototype.navigate = function (request) {36 var page = this.client.getPage(request.data.pageId)37 var url = request.data.params.url38 page.navigateTo(url, function () {39 request.sendNotification('Page.frameNavigated', {40 frame: new PageFrame(url)41 })42 setTimeout(function () {43 // TODO: This event should be fired, whne we get told from Firefox, but I don't know how to listen to that event yet.44 request.sendNotification('Page.loadEventFired', {45 timestamp: new Date().getTime()46 })47 }, 2000)48 })49}50Page.prototype.startScreencast = function (req) {51 var page = this.client.getPage(req.data.pageId)52 var captureScreencastFrame = function () {53 page.Device.screenshotToDataURL(function(err, screenData) {54 // page.DOM.document(function (err, elmDocument) {55 screenData = screenData.replace('data:image/png;base64,', '')56 var params = {57 data: screenData,58 metadata: {59 pageScaleFactor: 1,60 offsetTop: 0,61 deviceWidth: 1000,62 deviceHeight: 1000,63 scrollOffsetX: 0,64 scrollOffsetY: 065 }66 }67 req.sendNotification('Page.screencastFrame', params)68 // });69 })70 }71 this.screncastingInterval = setInterval(captureScreencastFrame, 1000)72}73Page.prototype.stopScreencast = function (req) {74 if (this.screncastingInterval) {75 clearInterval(this.screncastingInterval)76 }77}...
index.js
Source:index.js
...33 // Page.screencastFrame()34 // Page.captureScreenshot({format: 'png', fromSurface: true})35 // const ss = await Page.captureScreenshot({format: 'png', fromSurface: true})36 // fs.writeFile('screenshot.png', ss.data, 'base64')37 // await Page.startScreencast({format: 'png', everyNthFrame: 1});38 })39 // await Page.startScreencast({40 // format: 'png',41 // quality: 100,42 // maxWidth: 400,43 // maxHeight: 720,44 // everyNthFrame: 145 // })46 // Page.screencastFrame(image => {47 // frame++48 // const {data, metadata} = image49 // fs.writeFile('results/out' + frame + '.png', data, 'base64')50 // if (frame >= 50) {51 // console.log('Finish')52 // protocol.close()53 // chrome.kill()...
screenCastDemo.js
Source:screenCastDemo.js
...3loadPlugin(ID, clientHandler);4(async () => {5 try {6 await openBrowser();7 await startScreencast('<pathWhereYouWantToKeepGif>/selenium_testwebsite.gif');8 await goto('http://www.practiceselenium.com/welcome.html');9 await click("Our Passion");10 await click("Menu");11 await click("Check Out");12 await click("Log In");13 await stopScreencast();14 ;15 } catch (e) {16 console.error(e);17 } finally {18 await closeBrowser();19 }...
browserLauncher.js
Source:browserLauncher.js
...3const screenCastEnabled = process.env.SCREENCAST_ENABLED.toLowerCase() === 'true';4module.exports.openBrowserAndStartScreencast = async (outFile) => {5 await openBrowser({ args: ['--no-first-run', '--no-sandbox'] });6 if (screenCastEnabled) {7 await startScreencast(outFile);8 }9};10module.exports.closeBrowserAndStopScreencast = async () => {11 if (screenCastEnabled) {12 await stopScreencast();13 }14 await closeBrowser();...
screen_cast.js
Source:screen_cast.js
...3 try {4 await openBrowser();5 await setViewPort({width:400, height:200})6 await goto("file:///tmp/cat.bf.html");7 await screencast.startScreencast('demo.gif');8 } finally {9 await screencast.stopScreencast();10 await closeBrowser();11 }...
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const screencast = await page._startScreencast();7 await new Promise((resolve) => setTimeout(resolve, 5000));8 await screencast.stop();9 await browser.close();10})();11const { chromium } = require('playwright');12(async () => {13 const browser = await chromium.launch();14 const context = await browser.newContext();15 const page = await context.newPage();16 const screencast = await page._startScreencast();17 await new Promise((resolve) => setTimeout(resolve, 5000));18 await screencast.stop();19 await browser.close();20})();21const { chromium } = require('playwright');22(async () => {23 const browser = await chromium.launch();24 const context = await browser.newContext();25 const page = await context.newPage();26 const screencast = await page._startScreencast();27 await new Promise((resolve) => setTimeout(resolve, 5000));28 await screencast.stop();29 await browser.close();30})();31const { chromium } = require('playwright');32(async () => {33 const browser = await chromium.launch();34 const context = await browser.newContext();35 const page = await context.newPage();36 const screencast = await page._startScreencast();37 await new Promise((resolve) => setTimeout(resolve, 5000));38 await screencast.stop();39 await browser.close();40})();41const { chromium } = require('playwright');42(async () => {43 const browser = await chromium.launch();44 const context = await browser.newContext();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.context().startScreencast({width: 640, height: 480, quality: 100, everyNthFrame: 1, outputDir: 'screencast'});7 await page.waitForTimeout(5000);8 await page.context().stopScreencast();9 await browser.close();10})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const screencast = await page._startScreencast({format: 'jpeg', everyNthFrame: 1});7 await page.waitForTimeout(10000);8 await screencast.stop();9 await browser.close();10})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.screenshot({ path: 'example.png' });7 await browser.close();8})();9const { chromium } = require('playwright');10(async () => {11 const browser = await chromium.launch();12 const context = await browser.newContext();13 const page = await context.newPage();14 await page.screenshot({ path: 'example.png' });15 await browser.close();16})();17const { chromium } = require('playwright');18(async () => {19 const browser = await chromium.launch();20 const context = await browser.newContext();21 const page = await context.newPage();22 await page.screenshot({ path: 'example.png' });23 await browser.close();24})();25const { chromium } = require('playwright');26(async () => {27 const browser = await chromium.launch();28 const context = await browser.newContext();29 const page = await context.newPage();30 await page.screenshot({ path: 'example.png' });31 await browser.close();32})();33const { chromium } = require('playwright');34(async () => {35 const browser = await chromium.launch();36 const context = await browser.newContext();37 const page = await context.newPage();38 await page.screenshot({ path: 'example.png' });39 await browser.close();40})();41const { chromium } = require('playwright');42(async () => {43 const browser = await chromium.launch();44 const context = await browser.newContext();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.screenshot({ path: 'example.png' });7 await browser.close();8})();
Using AI Code Generation
1const playwright = require('playwright');2(async () => {3 const browser = await playwright['chromium'].launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 const screencast = await page._delegate.startScreencast();7 await page.waitForTimeout(5000);8 await screencast.stop();9 await browser.close();10})();11const playwright = require('playwright');12(async () => {13 const browser = await playwright['chromium'].launch();14 const context = await browser.newContext();15 const page = await context.newPage();16 const screencast = await page._delegate.startScreencast();17 await page.waitForTimeout(5000);18 await screencast.stop();19 await browser.close();20})();21const playwright = require('playwright');22(async () => {23 const browser = await playwright['chromium'].launch();24 const context = await browser.newContext();25 const page = await context.newPage();26 const screencast = await page._delegate.startScreencast();27 await page.waitForTimeout(5000);28 await screencast.stop();29 await browser.close();30})();31const playwright = require('playwright');32(async () => {33 const browser = await playwright['chromium'].launch();34 const context = await browser.newContext();35 const page = await context.newPage();36 const screencast = await page._delegate.startScreencast();37 await page.waitForTimeout(5000);38 await screencast.stop();39 await browser.close();40})();
Using AI Code Generation
1const { chromium } = require('playwright');2(async () => {3 const browser = await chromium.launch();4 const context = await browser.newContext();5 const page = await context.newPage();6 await page.screenshot({ path: 'example.png' });7 await browser.close();8})();9 at ChromiumBrowser._wrapApiCall (/home/rohan/Desktop/playwright/node_modules/playwright/lib/server/browserType.js:93:15)10 at async Promise.all (index 0)11 at async ChromiumBrowser.<anonymous> (/home/rohan/Desktop/playwright/node_modules/playwright/lib/server/chromium.js:79:5)12 at async ChromiumBrowser.<anonymous> (/home/rohan/Desktop/playwright/node_modules/playwright/lib/server/chromium.js:77:7)13 at async Promise.all (index 0)14 at async ChromiumBrowser.<anonymous> (/home/rohan/Desktop/playwright/node_modules/playwright/lib/server/chromium.js:76:5)15 at async ChromiumBrowser.<anonymous> (/home/rohan/Desktop/playwright/node_modules/playwright/lib/server/chromium.js:75:7)16 at async Promise.all (index 0)17 at async ChromiumBrowser.<anonymous> (/home/rohan/Desktop/playwright/node_modules/playwright/lib/server/chromium.js:74:5)
Using AI Code Generation
1const { chromium } = require('playwright');2const { startScreencast } = require('playwright/lib/server/screencast/screencast');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const page = await context.newPage();7 const pageId = page._delegate._id;8 const screencast = await startScreencast(page._delegate._browserContext._browser, {9 });10 screencast.on('data', (chunk) => {11 console.log(chunk);12 });13})();
Using AI Code Generation
1const { chromium } = require('playwright');2const { startScreencast } = require('playwright/lib/server/chromium/crVideo');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 const { stream, ffmpegProcess } = await startScreencast(browser._browserContext);7 stream.pipe(fs.createWriteStream('video.mp4'));8 const page = await context.newPage();9 await ffmpegProcess.kill();10 await browser.close();11})();12[ffmpeg] Stream #0:0: Video: png, rgba(pc), 800x600 [SAR 3779:3780 DAR 4:3], 25 tbr, 25 tbn, 25 tbc13[ffmpeg] Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Using AI Code Generation
1const { chromium, webkit, firefox } = require('playwright');2const { startScreencast } = require('playwright/lib/server/screencast/screencast');3const { createWriteStream } = require('fs');4(async () => {5 const browser = await chromium.launch();6 const context = await browser.newContext();7 const page = await context.newPage();8 const stream = createWriteStream('screencast.mp4');9 const screencast = await startScreencast(page, { format: 'mp4', width: 1280, height: 720, fps: 30 }, stream);10 await new Promise((x) => setTimeout(x, 10000));11 await screencast.stop();12 await browser.close();13})();
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.
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