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

Copied to Clipboard!

How to use OnFrameDetached method of PuppeteerSharp.LifecycleWatcher class

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

FrameManager.cs

Source:FrameManager.cs

...147                    case "Page.navigatedWithinDocument":148                        OnFrameNavigatedWithinDocument(e.MessageData.ToObject<NavigatedWithinDocumentResponse>(true));149                        break;150                    case "Page.frameDetached":151                        OnFrameDetached(e.MessageData.ToObject<BasicFrameResponse>(true));152                        break;153                    case "Page.frameStoppedLoading":154                        OnFrameStoppedLoading(e.MessageData.ToObject<BasicFrameResponse>(true));155                        break;156                    case "Runtime.executionContextCreated":157                        await OnExecutionContextCreatedAsync(e.MessageData.ToObject<RuntimeExecutionContextCreatedResponse>(true).Context);158                        break;159                    case "Runtime.executionContextDestroyed":160                        OnExecutionContextDestroyed(e.MessageData.ToObject<RuntimeExecutionContextDestroyedResponse>(true).ExecutionContextId);161                        break;162                    case "Runtime.executionContextsCleared":163                        OnExecutionContextsCleared();164                        break;165                    case "Page.lifecycleEvent":166                        OnLifeCycleEvent(e.MessageData.ToObject<LifecycleEventResponse>(true));167                        break;168                    default:169                        break;170                }171            }172            catch (Exception ex)173            {174                var message = $"Connection failed to process {e.MessageID}. {ex.Message}. {ex.StackTrace}";175                _logger.LogError(ex, message);176                Client.Close(message);177            }178        }179        private void OnFrameStoppedLoading(BasicFrameResponse e)180        {181            if (_frames.TryGetValue(e.FrameId, out var frame))182            {183                frame.OnLoadingStopped();184                LifecycleEvent?.Invoke(this, new FrameEventArgs(frame));185            }186        }187        private void OnLifeCycleEvent(LifecycleEventResponse e)188        {189            if (_frames.TryGetValue(e.FrameId, out var frame))190            {191                frame.OnLifecycleEvent(e.LoaderId, e.Name);192                LifecycleEvent?.Invoke(this, new FrameEventArgs(frame));193            }194        }195        private void OnExecutionContextsCleared()196        {197            while (_contextIdToContext.Count > 0)198            {199                var contextItem = _contextIdToContext.ElementAt(0);200                _contextIdToContext.Remove(contextItem.Key);201                if (contextItem.Value.World != null)202                {203                    contextItem.Value.World.SetContext(null);204                }205            }206        }207        private void OnExecutionContextDestroyed(int executionContextId)208        {209            _contextIdToContext.TryGetValue(executionContextId, out var context);210            if (context != null)211            {212                _contextIdToContext.Remove(executionContextId);213                if (context.World != null)214                {215                    context.World.SetContext(null);216                }217            }218        }219        private async Task OnExecutionContextCreatedAsync(ContextPayload contextPayload)220        {221            var frameId = contextPayload.AuxData?.FrameId;222            var frame = !string.IsNullOrEmpty(frameId) ? await GetFrameAsync(frameId).ConfigureAwait(false) : null;223            DOMWorld world = null;224            if (frame != null)225            {226                if (contextPayload.AuxData?.IsDefault == true)227                {228                    world = frame.MainWorld;229                }230                else if (contextPayload.Name == UtilityWorldName && !frame.SecondaryWorld.HasContext)231                {232                    // In case of multiple sessions to the same target, there's a race between233                    // connections so we might end up creating multiple isolated worlds.234                    // We can use either.235                    world = frame.SecondaryWorld;236                }237            }238            if (contextPayload.AuxData?.Type == DOMWorldType.Isolated)239            {240                _isolatedWorlds.Add(contextPayload.Name);241            }242            var context = new ExecutionContext(Client, contextPayload, world);243            if (world != null)244            {245                world.SetContext(context);246            }247            _contextIdToContext[contextPayload.Id] = context;248        }249        private void OnFrameDetached(BasicFrameResponse e)250        {251            if (_frames.TryGetValue(e.FrameId, out var frame))252            {253                RemoveFramesRecursively(frame);254            }255        }256        private async Task OnFrameNavigatedAsync(FramePayload framePayload)257        {258            var isMainFrame = string.IsNullOrEmpty(framePayload.ParentId);259            var frame = isMainFrame ? MainFrame : await GetFrameAsync(framePayload.Id);260            Contract.Assert(isMainFrame || frame != null, "We either navigate top level or have old version of the navigated frame");261            // Detach all child frames first.262            if (frame != null)263            {...

LifecycleWatcher.cs

Source:LifecycleWatcher.cs

...50            _lifecycleTaskWrapper = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);51            _terminationTaskWrapper = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);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}...

OnFrameDetached

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions10            {11            }))12            using (var page = await browser.NewPageAsync())13            {14                var watcher = new LifecycleWatcher(page);15                watcher.FrameDetached += OnFrameDetached;16                await Task.Delay(10000);17                watcher.FrameDetached -= OnFrameDetached;18            }19        }20        private static void OnFrameDetached(object sender, FrameEventArgs e)21        {22            Console.WriteLine($"Frame {e.Frame.Url} detached");23        }24    }25}26using System;27using System.Threading.Tasks;28using PuppeteerSharp;29{30    {31        static async Task Main(string[] args)32        {33            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);34            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions35            {36            }))37            using (var page = await browser.NewPageAsync())38            {39                var watcher = new LifecycleWatcher(page);40                watcher.FrameNavigated += OnFrameNavigated;41                await Task.Delay(10000);42                watcher.FrameNavigated -= OnFrameNavigated;43            }44        }45        private static void OnFrameNavigated(object sender, FrameEventArgs e)46        {47            Console.WriteLine($"Frame {e.Frame.Url} navigated");48        }49    }50}51using System;52using System.Threading.Tasks;53using PuppeteerSharp;54{55    {56        static async Task Main(string[] args)57        {58            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);59            using (var browser = await Puppeteer.LaunchAsync(new LaunchOptions60            {

OnFrameDetached

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            {9            };10            using (var browser = await Puppeteer.LaunchAsync(options))11            {12                using (var page = await browser.NewPageAsync())13                {14                    var watcher = new LifecycleWatcher(page);15                    watcher.FrameDetached += Watcher_FrameDetached;16                    await watcher.TimeoutOrTerminationTask;17                }18            }19        }20        private static void Watcher_FrameDetached(object sender, FrameEventArgs e)21        {22            Console.WriteLine(e.Frame.Url);23        }24    }25}

OnFrameDetached

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using PuppeteerSharp;7{8    {9        static void Main(string[] args)10        {11            MainAsync().Wait();12        }13        static async Task MainAsync()14        {15            {16            };17            using (var browser = await Puppeteer.LaunchAsync(options))18            {19                var page = await browser.NewPageAsync();20                var lifecycleWatcher = new LifecycleWatcher(page);21                lifecycleWatcher.OnFrameDetached += (sender, e) =>22                {23                    Console.WriteLine("Frame detached");24                };25            }26        }27    }28}

OnFrameDetached

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static async Task Main(string[] args)7        {8            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);9            var browser = await Puppeteer.LaunchAsync(new LaunchOptions10            {11                {12                }13            });14            var page = await browser.NewPageAsync();15            var watcher = page.GetLifecycleWatcher();16            watcher.OnFrameDetached += (sender, e) =>17            {18                Console.WriteLine($"Frame {e.Frame.Url} detached from page");19            };20            await browser.CloseAsync();21        }22    }23}

OnFrameDetached

Using AI Code Generation

1var watcher = new LifecycleWatcher(page);2watcher.OnFrameDetached += (sender, args) => {3    Console.WriteLine($"Frame Detached: {args.Frame.Url}");4};5var watcher = new LifecycleWatcher(page);6watcher.OnFrameNavigated += (sender, args) => {7    Console.WriteLine($"Frame Navigated: {args.Frame.Url}");8};9var watcher = new LifecycleWatcher(page);10watcher.OnFrameNavigatedWithinDocument += (sender, args) => {11    Console.WriteLine($"Frame Navigated Within Document: {args.Frame.Url}");12};13var watcher = new LifecycleWatcher(page);14watcher.OnFrameAttached += (sender, args) => {15    Console.WriteLine($"Frame Attached: {args.Frame.Url}");16};17var watcher = new LifecycleWatcher(page);18watcher.OnFrameDetached += (sender, args) => {19    Console.WriteLine($"Frame Detached: {args.Frame.Url}");20};21var watcher = new LifecycleWatcher(page);22watcher.OnFrameNavigated += (sender, args) => {23    Console.WriteLine($"Frame Navigated: {args.Frame.Url}");24};25var watcher = new LifecycleWatcher(page);26watcher.OnFrameNavigatedWithinDocument += (sender, args) => {27    Console.WriteLine($"Frame Navigated Within Document: {args.Frame.Url}");28};

OnFrameDetached

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;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 = false });10            var page = await browser.NewPageAsync();11            var watcher = new LifecycleWatcher(page);12            watcher.OnFrameDetached += (sender, e) =>13            {14                Console.WriteLine("The method is called when the frame gets detached from the page");15            };16            watcher.OnFrameNavigated += (sender, e) =>17            {18                Console.WriteLine("The method is called when the frame gets navigated to a different document or when the parent frame is navigated to a different page");19            };20            watcher.OnLoad += (sender, e) =>21            {22                Console.WriteLine("The method is called after the frame navigated to a different document");23            };24            watcher.OnDOMContentLoaded += (sender, e) =>25            {26                Console.WriteLine("The method is called before the frame gets navigated to a different document");27            };28            watcher.OnFrameNavigatedWithinDocument += (sender, e) =>29            {30                Console.WriteLine("The method is called before the frame gets navigated to a different document or when the parent frame is navigated to a different page");31            };32            await browser.CloseAsync();33        }34    }35}

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.