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}

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