How to use CheckLifecycle method of PuppeteerSharp.LifecycleWatcher class

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

LifecycleWatcher.cs

Source:LifecycleWatcher.cs

...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;...

CheckLifecycle

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            var page = await browser.NewPageAsync();13            var watcher = page.WaitForLifecycleAsync(LifecycleEvent.DOMContentLoaded);14            await watcher;15            await browser.CloseAsync();16        }17    }18}19Recommended Posts: How to use PuppeteerSharp.Page.WaitForNavigationAsync() method in C#?20How to use PuppeteerSharp.Page.WaitForRequestAsync() method in C#?21How to use PuppeteerSharp.Page.WaitForResponseAsync() method in C#?22How to use PuppeteerSharp.Page.WaitForFunctionAsync() method in C#?23How to use PuppeteerSharp.Page.WaitForXPathAsync() method in C#?24How to use PuppeteerSharp.Page.WaitForSelectorAsync() method in C#?

CheckLifecycle

Using AI Code Generation

1using PuppeteerSharp;2using System.Threading.Tasks;3{4    static async Task Main(string[] args)5    {6        var browser = await Puppeteer.LaunchAsync(new LaunchOptions7        {8            ExecutablePath = @"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe",9        });10        var page = await browser.NewPageAsync();11        await page.WaitForSelectorAsync("input[name=q]");12        await page.TypeAsync("input[name=q]", "puppeteer");13        await page.ClickAsync("input[value='Google Search']");14        await page.WaitForNavigationAsync();15    }16}

CheckLifecycle

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });2var page = await browser.NewPageAsync();3var watcher = page.WaitForNavigationAsync(new NavigationOptions { WaitUntil = new[] { WaitUntilNavigation.Networkidle0 } });4await watcher;5await browser.CloseAsync();6var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });7var page = await browser.NewPageAsync();8var watcher = page.WaitForNavigationAsync(new NavigationOptions { WaitUntil = new[] { WaitUntilNavigation.Networkidle0 } });9await watcher;10await browser.CloseAsync();

CheckLifecycle

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using PuppeteerSharp;4{5    {6        static void Main(string[] args)7        {8            MainAsync().Wait();9        }10        static async Task MainAsync()11        {12            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false });13            var page = await browser.NewPageAsync();14            var watcher = page.WaitForNavigationAsync();15            await watcher;16            Console.WriteLine("Navigation is finished");17            await page.CloseAsync();18            await browser.CloseAsync();19        }20    }21}22Related Posts: PuppeteerSharp - How to use WaitForNavigationAsync() method23PuppeteerSharp - How to use WaitForRequestAsync() method24PuppeteerSharp - How to use WaitForResponseAsync() method25PuppeteerSharp - How to use WaitForSelectorAsync() method26PuppeteerSharp - How to use WaitForXPathAsync() method

CheckLifecycle

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Threading.Tasks;4{5    {6        static void Main(string[] args)7        {8            MainAsync().GetAwaiter().GetResult();9        }10        static async Task MainAsync()11        {12            var options = new LaunchOptions { Headless = false };13            using (var browser = await Puppeteer.LaunchAsync(options))14            using (var page = await browser.NewPageAsync())15            {16                var watcher = page.WaitForNavigationAsync(LifecycleEvent.Networkidle0);17                await watcher;18            }19        }20    }21}

CheckLifecycle

Using AI Code Generation

1var browser = await Puppeteer.LaunchAsync(new LaunchOptions2{3    Args = new string[] { "--no-sandbox" }4});5var page = await browser.NewPageAsync();6var watcher = page.GetLifecycleWatcher();7await watcher.Timeout(1000).CheckLifecycleAsync(LifecycleNetworkIdle);8await browser.CloseAsync();9var browser = await Puppeteer.LaunchAsync(new LaunchOptions10{11    Args = new string[] { "--no-sandbox" }12});13var page = await browser.NewPageAsync();14var watchdog = page.GetWatchdog();15await browser.CloseAsync();16var browser = await Puppeteer.LaunchAsync(new LaunchOptions17{18    Args = new string[] { "--no-sandbox" }19});20var page = await browser.NewPageAsync();21var watchdog = page.GetWatchdog();22await browser.CloseAsync();23var browser = await Puppeteer.LaunchAsync(new LaunchOptions24{25    Args = new string[] { "--no-sandbox" }26});27var page = await browser.NewPageAsync();28var watchdog = page.GetWatchdog();29await browser.CloseAsync();30var browser = await Puppeteer.LaunchAsync(new LaunchOptions31{32    Args = new string[] { "--no-sandbox" }33});34var page = await browser.NewPageAsync();35var watchdog = page.GetWatchdog();36await browser.CloseAsync();

CheckLifecycle

Using AI Code Generation

1var options = new LaunchOptions { Headless = false };2var browser = await Puppeteer.LaunchAsync(options);3var page = await browser.NewPageAsync();4var watcher = page.Lifecycle.WatchAsync(LifecycleEvent.Networkidle2);5await watcher;6await page.ScreenshotAsync("google.png");7await browser.CloseAsync();8var options = new LaunchOptions { Headless = false };9var browser = await Puppeteer.LaunchAsync(options);10var page = await browser.NewPageAsync();11var watcher = page.Lifecycle.WatchAsync(LifecycleEvent.Load);12await watcher;13await page.ScreenshotAsync("google.png");14await browser.CloseAsync();15var options = new LaunchOptions { Headless = false };16var browser = await Puppeteer.LaunchAsync(options);17var page = await browser.NewPageAsync();18var watcher = page.Lifecycle.WatchAsync(LifecycleEvent.DOMContentLoaded);19await watcher;20await page.ScreenshotAsync("google.png");21await browser.CloseAsync();22var options = new LaunchOptions { Headless = false };23var browser = await Puppeteer.LaunchAsync(options);24var page = await browser.NewPageAsync();25var watcher = page.Lifecycle.WatchAsync(LifecycleEvent.Networkidle0);26await watcher;27await page.ScreenshotAsync("google.png");28await browser.CloseAsync();29var options = new LaunchOptions { Headless = false };30var browser = await Puppeteer.LaunchAsync(options);31var page = await browser.NewPageAsync();32var watcher = page.Lifecycle.WatchAsync(LifecycleEvent.Networkidle2);33await watcher;34await page.ScreenshotAsync("google.png");35await browser.CloseAsync();

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