How to use OnFrameDetached method of PuppeteerSharp.FrameManager class

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

FrameManager.cs

Source:FrameManager.cs

...42                case "Page.frameNavigated":43                    OnFrameNavigated(((JObject)e.MessageData.frame).ToObject<FramePayload>());44                    break;45                case "Page.frameDetached":46                    OnFrameDetached(e.MessageData.frameId.ToString());47                    break;48                case "Runtime.executionContextCreated":49                    OnExecutionContextCreated(new ContextPayload(e.MessageData.context));50                    break;51                case "Runtime.executionContextDestroyed":52                    OnExecutionContextDestroyed((int)e.MessageData.executionContextId);53                    break;54                case "Runtime.executionContextsCleared":55                    OnExecutionContextsCleared();56                    break;57                case "Page.lifecycleEvent":58                    OnLifeCycleEvent(e);59                    break;60                default:61                    break;62            }63        }64        private void OnLifeCycleEvent(MessageEventArgs e)65        {66            if (Frames.ContainsKey(e.MessageData.frameId.ToString()))67            {68                Frame frame = Frames[e.MessageData.frameId.ToString()];69                frame.OnLifecycleEvent(e.MessageData.loaderId.ToString(), e.MessageData.name.ToString());70                LifecycleEvent?.Invoke(this, new FrameEventArgs(frame));71            }72        }73        private void OnExecutionContextsCleared()74        {75            foreach (var context in _contextIdToContext.Values)76            {77                RemoveContext(context);78            }79            _contextIdToContext.Clear();80        }81        private void OnExecutionContextDestroyed(int executionContextId)82        {83            _contextIdToContext.TryGetValue(executionContextId, out var context);84            if (context != null)85            {86                _contextIdToContext.Remove(executionContextId);87                RemoveContext(context);88            }89        }90        public JSHandle CreateJsHandle(int contextId, dynamic remoteObject)91        {92            _contextIdToContext.TryGetValue(contextId, out var storedContext);93            if (storedContext == null)94            {95                _logger.LogError("INTERNAL ERROR: missing context with id = {ContextId}", contextId);96            }97            if (remoteObject.subtype == "node")98            {99                return new ElementHandle(storedContext, _client, remoteObject, _page);100            }101            return new JSHandle(storedContext, _client, remoteObject);102        }103        private void OnExecutionContextCreated(ContextPayload contextPayload)104        {105            var context = new ExecutionContext(_client, contextPayload,106                remoteObject => CreateJsHandle(contextPayload.Id, remoteObject));107            _contextIdToContext[contextPayload.Id] = context;108            var frame = !string.IsNullOrEmpty(context.FrameId) ? Frames[context.FrameId] : null;109            if (frame != null && context.IsDefault)110            {111                frame.SetDefaultContext(context);112            }113        }114        private void OnFrameDetached(string frameId)115        {116            if (Frames.ContainsKey(frameId))117            {118                RemoveFramesRecursively(Frames[frameId]);119            }120        }121        private void OnFrameNavigated(FramePayload framePayload)122        {123            var isMainFrame = string.IsNullOrEmpty(framePayload.ParentId);124            var frame = isMainFrame ? MainFrame : Frames[framePayload.Id];125            Contract.Assert(isMainFrame || frame != null, "We either navigate top level or have old version of the navigated frame");126            // Detach all child frames first.127            if (frame != null)128            {...

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}...

NavigatorWatcher.cs

Source:NavigatorWatcher.cs

...53            _timeout = timeout;54            _hasSameDocumentNavigation = false;55            frameManager.LifecycleEvent += CheckLifecycleComplete;56            frameManager.FrameNavigatedWithinDocument += NavigatedWithinDocument;57            frameManager.FrameDetached += OnFrameDetached;58            networkManager.Request += OnRequest;59            Connection.FromSession(client).Closed += (sender, e)60                => Terminate(new TargetClosedException("Navigation failed because browser has disconnected!"));61            _sameDocumentNavigationTaskWrapper = new TaskCompletionSource<bool>();62            _newDocumentNavigationTaskWrapper = new TaskCompletionSource<bool>();63            _terminationTaskWrapper = new TaskCompletionSource<bool>();64            _timeoutTask = TaskHelper.CreateTimeoutTask(timeout);65        }66        #region Properties67        public Task<Task> NavigationTask { get; internal set; }68        public Task<bool> SameDocumentNavigationTask => _sameDocumentNavigationTaskWrapper.Task;69        public Task<bool> NewDocumentNavigationTask => _newDocumentNavigationTaskWrapper.Task;70        public Response NavigationResponse => _navigationRequest?.Response;71        public Task<Task> TimeoutOrTerminationTask => Task.WhenAny(_timeoutTask, _terminationTaskWrapper.Task);72        #endregion73        #region Private methods74        private void OnFrameDetached(object sender, FrameEventArgs e)75        {76            var frame = e.Frame;77            if (_frame == frame)78            {79                Terminate(new PuppeteerException("Navigating frame was detached"));80                return;81            }82            CheckLifecycleComplete(sender, e);83        }84        private void CheckLifecycleComplete(object sender, FrameEventArgs e)85        {86            // We expect navigation to commit.87            if (_frame.LoaderId == _initialLoaderId && !_hasSameDocumentNavigation)88            {...

OnFrameDetached

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 LaunchOptions9            {10                Args = new string[] { "--no-sandbox" }11            });12            var page = await browser.NewPageAsync();13            await page.WaitForSelectorAsync("input[title='Search']");14            var frame = await page.FrameAsync("frame1");15            frame.OnFrameDetached += (sender, e) =>16            {17                Console.WriteLine("Frame detached");18            };19            await page.EvaluateFunctionAsync("() => document.querySelector('iframe').remove()");20            await browser.CloseAsync();21        }22    }23}24using PuppeteerSharp;25using System;26using System.Threading.Tasks;27{28    {29        static async Task Main(string[] args)30        {31            var browser = await Puppeteer.LaunchAsync(new LaunchOptions32            {33                Args = new string[] { "--no-sandbox" }34            });35            var page = await browser.NewPageAsync();36            await page.WaitForSelectorAsync("input[title='Search']");37            var frame = await page.FrameAsync("frame1");38            frame.OnFrameNavigated += (sender, e) =>39            {40                Console.WriteLine("Frame navigated");41            };42            await browser.CloseAsync();43        }44    }45}46using PuppeteerSharp;47using System;48using System.Threading.Tasks;49{50    {51        static async Task Main(string[] args)52        {53            var browser = await Puppeteer.LaunchAsync(new LaunchOptions54            {55                Args = new string[] { "--no-sandbox" }56            });57            var page = await browser.NewPageAsync();

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 LaunchOptions { Headless = false }))10            {11                var page = await browser.NewPageAsync();12                page.FrameManager.FrameAttached += FrameManager_FrameAttached;13                page.FrameManager.FrameDetached += FrameManager_FrameDetached;14                Console.ReadLine();15            }16        }17        private static void FrameManager_FrameDetached(object sender, FrameEventArgs e)18        {19            Console.WriteLine("Frame Detached: " + e.Frame.Url);20        }21        private static void FrameManager_FrameAttached(object sender, FrameEventArgs e)22        {23            Console.WriteLine("Frame Attached: " + e.Frame.Url);24        }25    }26}

OnFrameDetached

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3    Args = new string[] { "--no-sandbox" }4});5var page = await browser.NewPageAsync();6await page.WaitForSelectorAsync("input[name=q]");7await page.TypeAsync("input[name=q]", "Puppeteer");8await page.ClickAsync("input[value='Google Search']");9await page.WaitForSelectorAsync("h3");10var frames = page.MainFrame.ChildFrames;11foreach (var frame in frames)12{13    frame.FrameManager.FrameDetached += FrameManager_FrameDetached;14}15await page.ScreenshotAsync("2.png");16await browser.CloseAsync();17private static void FrameManager_FrameDetached(object sender, PuppeteerSharp.FrameEventArgs e)18{19    Console.WriteLine("Frame Detached");20}

OnFrameDetached

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3});4var page = await browser.NewPageAsync();5await page.WaitForSelectorAsync("input[title='Search']");6var frame = await page.FrameAsync("frameName");7await frame.EvaluateFunctionAsync(@"function() { 8    window.addEventListener('frameDetached', function(event) {9        console.log(event);10    });11}");12await page.EvaluateFunctionAsync(@"function() {13    document.querySelector('input[title='Search']').remove();14}");15await browser.CloseAsync();16var browser = await Puppeteer.LaunchAsync(new LaunchOptions17{18});19var page = await browser.NewPageAsync();20await page.WaitForSelectorAsync("input[title='Search']");21var frame = await page.FrameAsync("frameName");22frame.FrameDetached += (sender, e) =>23{24    Console.WriteLine("frame detached");25};26await page.EvaluateFunctionAsync(@"function() {27    document.querySelector('input[title='Search']').remove();28}");29await browser.CloseAsync();

OnFrameDetached

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3});4var page = await browser.NewPageAsync();5await page.WaitForSelectorAsync("input[name='q']");6await page.TypeAsync("input[name='q']", "Puppeteer");7await page.Keyboard.PressAsync("Enter");8await page.WaitForNavigationAsync();9var results = await page.QuerySelectorAllAsync("div.g");10Console.WriteLine(results.Length);11await browser.CloseAsync();12var browser = await Puppeteer.LaunchAsync(new LaunchOptions13{14});15var page = await browser.NewPageAsync();16await page.WaitForSelectorAsync("input[name='q']");17await page.TypeAsync("input[name='q']", "Puppeteer");18await page.Keyboard.PressAsync("Enter");19await page.WaitForNavigationAsync();20var results = await page.QuerySelectorAllAsync("div.g");21Console.WriteLine(results.Length);22await browser.CloseAsync();23var browser = await Puppeteer.LaunchAsync(new LaunchOptions24{25});26var page = await browser.NewPageAsync();27await page.WaitForSelectorAsync("input[name='q']");28await page.TypeAsync("input[name='q']", "Puppeteer");29await page.Keyboard.PressAsync("Enter");30await page.WaitForNavigationAsync();31var results = await page.QuerySelectorAllAsync("div.g");32Console.WriteLine(results.Length);33await browser.CloseAsync();34var browser = await Puppeteer.LaunchAsync(new LaunchOptions35{36});37var page = await browser.NewPageAsync();38await page.WaitForSelectorAsync("input[name='q']");39await page.TypeAsync("input[name='q']", "Puppeteer");40await page.Keyboard.PressAsync("Enter");41await page.WaitForNavigationAsync();42var results = await page.QuerySelectorAllAsync("div.g");43Console.WriteLine(results.Length);44await browser.CloseAsync();

OnFrameDetached

Using AI Code Generation

1var frameManager = page.FrameManager;2frameManager.OnFrameDetached += (sender, e) => Console.WriteLine("frame detached from page");3var frameManager = page.FrameManager;4frameManager.OnFrameNavigated += (sender, e) => Console.WriteLine("frame navigated within page");5var frameManager = page.FrameManager;6frameManager.OnFrameNavigatedWithinDocument += (sender, e) => Console.WriteLine("frame navigated within document");7var frameManager = page.FrameManager;8frameManager.OnFrameAttached += (sender, e) => Console.WriteLine("frame attached to page");9var frameManager = page.FrameManager;10frameManager.OnFrameDetached += (sender, e) => Console.WriteLine("frame detached from page");11var frameManager = page.FrameManager;12frameManager.OnFrameNavigated += (sender, e) => Console.WriteLine("frame navigated within page");13var frameManager = page.FrameManager;14frameManager.OnFrameNavigatedWithinDocument += (sender, e) => Console.WriteLine("frame navigated within document");15var frameManager = page.FrameManager;16frameManager.OnFrameAttached += (sender, e) => Console.WriteLine("frame attached to page");17var frameManager = page.FrameManager;18frameManager.OnFrameDetached += (sender, e) => Console.WriteLine("frame detached from page");19var frameManager = page.FrameManager;

OnFrameDetached

Using AI Code Generation

1await Page.FrameManager.OnFrameDetached += (sender, args) =>2{3    Console.WriteLine("Frame Detached");4};5await Page.FrameManager.OnFrameAttached += (sender, args) =>6{7    Console.WriteLine("Frame Attached");8};

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