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

Copied to Clipboard!

How to use OnClientDisconnected method of PuppeteerSharp.LifecycleWatcher class

Best Puppeteer-sharp code snippet using PuppeteerSharp.LifecycleWatcher.OnClientDisconnected

LifecycleWatcher.cs

Source:LifecycleWatcher.cs

...52            frameManager.LifecycleEvent += FrameManager_LifecycleEvent;53            frameManager.FrameNavigatedWithinDocument += NavigatedWithinDocument;54            frameManager.FrameDetached += OnFrameDetached;55            frameManager.NetworkManager.Request += OnRequest;56            frameManager.Client.Disconnected += OnClientDisconnected;57            CheckLifecycleComplete();58        }59        #region Properties60        public Task<Task> NavigationTask { get; internal set; }61        public Task<bool> SameDocumentNavigationTask => _sameDocumentNavigationTaskWrapper.Task;62        public Task<bool> NewDocumentNavigationTask => _newDocumentNavigationTaskWrapper.Task;63        public Response NavigationResponse => _navigationRequest?.Response;64        public Task TimeoutOrTerminationTask65            => _terminationTaskWrapper.Task.WithTimeout(_timeout);66        public Task LifecycleTask => _lifecycleTaskWrapper.Task;67        #endregion68        #region Private methods69        private void OnClientDisconnected(object sender, EventArgs e)70            => Terminate(new TargetClosedException("Navigation failed because browser has disconnected!", _frameManager.Client.CloseReason));71        void FrameManager_LifecycleEvent(object sender, FrameEventArgs e) => CheckLifecycleComplete();7273        private void OnFrameDetached(object sender, FrameEventArgs e)74        {75            var frame = e.Frame;76            if (_frame == frame)77            {78                Terminate(new PuppeteerException("Navigating frame was detached"));79                return;80            }81            CheckLifecycleComplete();82        }83        private void CheckLifecycleComplete()84        {85            // We expect navigation to commit.86            if (!CheckLifecycle(_frame, _expectedLifecycle))87            {88                return;89            }90            _lifecycleTaskWrapper.TrySetResult(true);91            if (_frame.LoaderId == _initialLoaderId && !_hasSameDocumentNavigation)92            {93                return;94            }95            if (_hasSameDocumentNavigation)96            {97                _sameDocumentNavigationTaskWrapper.TrySetResult(true);98            }99            if (_frame.LoaderId != _initialLoaderId)100            {101                _newDocumentNavigationTaskWrapper.TrySetResult(true);102            }103        }104        private void Terminate(PuppeteerException ex) => _terminationTaskWrapper.TrySetException(ex);105        private void OnRequest(object sender, RequestEventArgs e)106        {107            if (e.Request.Frame != _frame || !e.Request.IsNavigationRequest)108            {109                return;110            }111            _navigationRequest = e.Request;112        }113        private void NavigatedWithinDocument(object sender, FrameEventArgs e)114        {115            if (e.Frame != _frame)116            {117                return;118            }119            _hasSameDocumentNavigation = true;120            CheckLifecycleComplete();121        }122        private bool CheckLifecycle(Frame frame, IEnumerable<string> expectedLifecycle)123        {124            foreach (var item in expectedLifecycle)125            {126                if (!frame.LifecycleEvents.Contains(item))127                {128                    return false;129                }130            }131            foreach (var child in frame.ChildFrames)132            {133                if (!CheckLifecycle(child, expectedLifecycle))134                {135                    return false;136                }137            }138            return true;139        }140        public void Dispose() => Dispose(true);141        ~LifecycleWatcher() => Dispose(false);142        public void Dispose(bool disposing)143        {144            _frameManager.LifecycleEvent -= FrameManager_LifecycleEvent;145            _frameManager.FrameNavigatedWithinDocument -= NavigatedWithinDocument;146            _frameManager.FrameDetached -= OnFrameDetached;147            _frameManager.NetworkManager.Request -= OnRequest;148            _frameManager.Client.Disconnected -= OnClientDisconnected;149        }150        #endregion151    }152}...

OnClientDisconnected

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });10            var page = await browser.NewPageAsync();11            var watcher = new LifecycleWatcher(page);12            watcher.OnClientDisconnected += (sender, e) => Console.WriteLine("Client disconnected");13            await browser.CloseAsync();14        }15    }16}

OnClientDisconnected

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions { Headless = false };9            using (var browser = await Puppeteer.LaunchAsync(options))10            using (var page = await browser.NewPageAsync())11            {12                var watcher = page.GetLifecycleWatcher();13                watcher.OnClientDisconnected += Watcher_OnClientDisconnected;14                await Task.Delay(5000);15            }16        }17        private static void Watcher_OnClientDisconnected(object sender, EventArgs e)18        {19            Console.WriteLine("Client Disconnected");20        }21    }22}23Recommended Posts: PuppeteerSharp | LifecycleWatcher.OnDialog() Method24PuppeteerSharp | LifecycleWatcher.OnError() Method25PuppeteerSharp | LifecycleWatcher.OnFrameAttached() Method26PuppeteerSharp | LifecycleWatcher.OnFrameDetached() Method27PuppeteerSharp | LifecycleWatcher.OnFrameNavigated() Method28PuppeteerSharp | LifecycleWatcher.OnFrameNavigatedWithinDocument() Method29PuppeteerSharp | LifecycleWatcher.OnFrameRequestedNavigation() Method30PuppeteerSharp | LifecycleWatcher.OnFrameScheduledNavigation() Method31PuppeteerSharp | LifecycleWatcher.OnLoad() Method32PuppeteerSharp | LifecycleWatcher.OnRequest() Method33PuppeteerSharp | LifecycleWatcher.OnRequestFailed() Method34PuppeteerSharp | LifecycleWatcher.OnRequestFinished() Method35PuppeteerSharp | LifecycleWatcher.OnResponse() Method36PuppeteerSharp | LifecycleWatcher.OnWorkerCreated() Method37PuppeteerSharp | LifecycleWatcher.OnWorkerDestroyed() Method38PuppeteerSharp | LifecycleWatcher.OnWorkerTerminated() Method39PuppeteerSharp | LifecycleWatcher.OnConsole() Method40PuppeteerSharp | LifecycleWatcher.OnDownload() Method41PuppeteerSharp | LifecycleWatcher.OnFileChooser() Method42PuppeteerSharp | LifecycleWatcher.OnPageError() Method43PuppeteerSharp | LifecycleWatcher.OnPopup() Method44PuppeteerSharp | LifecycleWatcher.OnRequestIntercepted() Method45PuppeteerSharp | LifecycleWatcher.OnRequestPaused() Method46PuppeteerSharp | LifecycleWatcher.OnDialog() Method47PuppeteerSharp | LifecycleWatcher.OnError() Method

OnClientDisconnected

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });9            var page = await browser.NewPageAsync();10            var watcher = new LifecycleWatcher(page);11            watcher.OnClientDisconnected += Watcher_OnClientDisconnected;12            await Task.Delay(10000);13            await browser.CloseAsync();14        }15        private static void Watcher_OnClientDisconnected(object sender, EventArgs e)16        {17            Console.WriteLine("Client Disconnected");18        }19    }20}21C# | Create object of a type using Activator.CreateInstance() method22C# | Create object of a type using Activator.CreateInstance() method23C# | Create object of a type using Activator.CreateInstance() method24C# | Create object of a type using Activator.CreateInstance() method25C# | Create object of a type using Activator.CreateInstance() method26C# | Create object of a type using Activator.CreateInstance() method

OnClientDisconnected

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions { Headless = false };9            using (var browser = await Puppeteer.LaunchAsync(options))10            {11                var page = await browser.NewPageAsync();12                var watcher = page.LifecycleWatcher;13                watcher.OnClientDisconnected += (sender, e) => Console.WriteLine("Client disconnected");14                await page.CloseAsync();15            }16        }17    }18}19using System;20using System.Threading.Tasks;21using PuppeteerSharp;22{23    {24        static async Task Main(string[] args)25        {26            var options = new LaunchOptions { Headless = false };27            using (var browser = await Puppeteer.LaunchAsync(options))28            {29                var page = await browser.NewPageAsync();30                var watcher = page.LifecycleWatcher;31                watcher.OnDialog += (sender, e) => Console.WriteLine("Dialog appeared");32            }33        }34    }35}36using System;37using System.Threading.Tasks;38using PuppeteerSharp;39{40    {41        static async Task Main(string[] args)42        {43            var options = new LaunchOptions { Headless = false };44            using (var browser = await Puppeteer.LaunchAsync(options))45            {46                var page = await browser.NewPageAsync();47                var watcher = page.LifecycleWatcher;48                watcher.OnFrameAttached += (sender, e) => Console.WriteLine("Frame attached");49            }50        }51    }52}53using System;54using System.Threading.Tasks;55using PuppeteerSharp;

OnClientDisconnected

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var browser = await Puppeteer.LaunchAsync(new LaunchOptions9            {10            });11            var page = await browser.NewPageAsync();12            await page.WaitForTimeoutAsync(10000);13            await page.CloseAsync();14            await browser.CloseAsync();15        }16    }17}18[0717/131814.369:ERROR:device_event_log_impl.cc(208)] [13:18:14.368] USB: usb_device_handle_win.cc:1058 Failed to read descriptor from node connection: A device attached to the system is not functioning. (0x1F)19[0717/131814.369:ERROR:device_event_log_impl.cc(208)] [13:18:14.369] USB: usb_device_handle_win.cc:1058 Failed to read descriptor from node connection: A device attached to the system is not functioning. (0x1F)20[0717/131814.369:ERROR:device_event_log_impl.cc(208)] [13:18:14.369] USB: usb_device_handle_win.cc:1058 Failed to read descriptor from node connection: A device attached to the system is not functioning. (0x1F)21[0717/131814.369:ERROR:device_event_log_impl.cc(208)] [13:18:14.369] USB: usb_device_handle_win.cc:1058 Failed to read descriptor from node connection: A device attached to the system is not functioning. (0x1F)22[0717/131814.369:ERROR:device_event_log_impl.cc(208)] [13:18:14.369] USB: usb_device_handle_win.cc:1058 Failed to read descriptor from node connection: A device attached to the system is not functioning. (0x1F)23[0717/131814.369:ERROR:device_event_log_impl.cc(208)] [13:18:14.369] USB: usb_device_handle_win.cc:1058 Failed to read descriptor from node connection: A device attached to the system

OnClientDisconnected

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            var options = new LaunchOptions { Headless = false };9            using (var browser = await Puppeteer.LaunchAsync(options))10            {11                using (var page = await browser.NewPageAsync())12                {13                    var watcher = new LifecycleWatcher(page);14                    watcher.OnClientDisconnected += (sender, e) =>15                    {16                        Console.WriteLine("Client Disconnected");17                    };18                    await page.EvaluateFunctionAsync("() => window.close()");19                    await watcher.TimeoutOrTerminationTask;20                }21            }22        }23    }24}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.