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How to use InitialState method of PuppeteerSharp.States.InitialState class

Best Puppeteer-sharp code snippet using PuppeteerSharp.States.InitialState.InitialState

ChromiumProcess.cs

Source:ChromiumProcess.cs

...287        /// </remarks>288        private abstract class State289        {290            #region Predefined states291            public static readonly State Initial = new InitialState();292            private static readonly StartingState Starting = new StartingState();293            private static readonly StartedState Started = new StartedState();294            private static readonly ExitingState Exiting = new ExitingState();295            private static readonly KillingState Killing = new KillingState();296            private static readonly ExitedState Exited = new ExitedState();297            private static readonly DisposedState Disposed = new DisposedState();298            #endregion299            #region Properties300            public bool IsExiting => this == Killing || this == Exiting;301            public bool IsExited => this == Exited || this == Disposed;302            #endregion303            #region Methods304            /// <summary>305            /// Attempts thread-safe transitions from a given state to this state.306            /// </summary>307            /// <param name="p">The Chromium process</param>308            /// <param name="fromState">The state from which state transition takes place</param>309            /// <returns>Returns <c>true</c> if transition is successful, or <c>false</c> if transition310            /// cannot be made because current state does not equal <paramref name="fromState"/>.</returns>311            protected bool TryEnter(ChromiumProcess p, State fromState)312            {313                if (Interlocked.CompareExchange(ref p._currentState, this, fromState) == fromState)314                {315                    fromState.Leave(p);316                    return true;317                }318                return false;319            }320            /// <summary>321            /// Notifies that state machine is about to transition to another state.322            /// </summary>323            /// <param name="p">The Chromium process</param>324            protected virtual void Leave(ChromiumProcess p)325            { }326            /// <summary>327            /// Handles process start request.328            /// </summary>329            /// <param name="p">The Chromium process</param>330            /// <returns></returns>331            public virtual Task StartAsync(ChromiumProcess p) => Task.FromException(InvalidOperation("start"));332            /// <summary>333            /// Handles process exit request.334            /// </summary>335            /// <param name="p">The Chromium process</param>336            /// <param name="timeout">The maximum waiting time for a graceful process exit.</param>337            /// <returns></returns>338            public virtual Task ExitAsync(ChromiumProcess p, TimeSpan timeout) => Task.FromException(InvalidOperation("exit"));339            /// <summary>340            /// Handles process kill request.341            /// </summary>342            /// <param name="p">The Chromium process</param>343            /// <returns></returns>344            public virtual Task KillAsync(ChromiumProcess p) => Task.FromException(InvalidOperation("kill"));345            /// <summary>346            /// Handles wait for process exit request.347            /// </summary>348            /// <param name="p">The Chromium process</param>349            /// <returns></returns>350            public virtual Task WaitForExitAsync(ChromiumProcess p) => p._exitCompletionSource.Task;351            /// <summary>352            /// Handles disposal of process and temporary user directory353            /// </summary>354            /// <param name="p"></param>355            public virtual void Dispose(ChromiumProcess p) => Disposed.EnterFrom(p, this);356            public override string ToString()357            {358                var name = GetType().Name;359                return name.Substring(0, name.Length - "State".Length);360            }361            private Exception InvalidOperation(string operationName)362                => new InvalidOperationException($"Cannot {operationName} in state {this}");363            /// <summary>364            /// Kills process if it is still alive.365            /// </summary>366            /// <param name="p"></param>367            private static void Kill(ChromiumProcess p)368            {369                try370                {371                    if (!p.Process.HasExited)372                    {373                        p.Process.Kill();374                    }375                }376                catch (InvalidOperationException)377                {378                    // Ignore379                }380            }381            #endregion382            #region Concrete state classes383            private class InitialState : State384            {385                public override Task StartAsync(ChromiumProcess p) => Starting.EnterFromAsync(p, this);386                public override Task ExitAsync(ChromiumProcess p, TimeSpan timeout)387                {388                    Exited.EnterFrom(p, this);389                    return Task.CompletedTask;390                }391                public override Task KillAsync(ChromiumProcess p)392                {393                    Exited.EnterFrom(p, this);394                    return Task.CompletedTask;395                }396                public override Task WaitForExitAsync(ChromiumProcess p) => Task.FromException(InvalidOperation("wait for exit"));397            }...

LauncherBase.cs

Source:LauncherBase.cs

...209            #region Predefined states210            /// <summary>211            /// Set initial state.212            /// </summary>213            public static readonly State Initial = new InitialState();214            private static readonly StartingState Starting = new StartingState();215            private static readonly StartedState Started = new StartedState();216            private static readonly ExitingState Exiting = new ExitingState();217            private static readonly KillingState Killing = new KillingState();218            private static readonly ExitedState Exited = new ExitedState();219            private static readonly DisposedState Disposed = new DisposedState();220            #endregion221            #region Properties222            /// <summary>223            /// Get If process exists.224            /// </summary>225            public bool IsExiting => this == Killing || this == Exiting;226            /// <summary>227            /// Get If process is exited.228            /// </summary>229            public bool IsExited => this == Exited || this == Disposed;230            #endregion231            #region Methods232            /// <summary>233            /// Attempts thread-safe transitions from a given state to this state.234            /// </summary>235            /// <param name="p">The Base process</param>236            /// <param name="fromState">The state from which state transition takes place</param>237            /// <returns>Returns <c>true</c> if transition is successful, or <c>false</c> if transition238            /// cannot be made because current state does not equal <paramref name="fromState"/>.</returns>239            protected bool TryEnter(LauncherBase p, State fromState)240            {241                if (Interlocked.CompareExchange(ref p._currentState, this, fromState) == fromState)242                {243                    fromState.Leave(p);244                    return true;245                }246                return false;247            }248            /// <summary>249            /// Notifies that state machine is about to transition to another state.250            /// </summary>251            /// <param name="p">The Base process</param>252            protected virtual void Leave(LauncherBase p)253            {254            }255            /// <summary>256            /// Handles process start request.257            /// </summary>258            /// <param name="p">The Base process</param>259            /// <returns></returns>260            public virtual Task StartAsync(LauncherBase p) => Task.FromException(InvalidOperation("start"));261            /// <summary>262            /// Handles process exit request.263            /// </summary>264            /// <param name="p">The Base process</param>265            /// <param name="timeout">The maximum waiting time for a graceful process exit.</param>266            /// <returns></returns>267            public virtual Task ExitAsync(LauncherBase p, TimeSpan timeout) => Task.FromException(InvalidOperation("exit"));268            /// <summary>269            /// Handles process kill request.270            /// </summary>271            /// <param name="p">The Base process</param>272            /// <returns></returns>273            public virtual Task KillAsync(LauncherBase p) => Task.FromException(InvalidOperation("kill"));274            /// <summary>275            /// Handles wait for process exit request.276            /// </summary>277            /// <param name="p">The Base process</param>278            /// <returns></returns>279            public virtual Task WaitForExitAsync(LauncherBase p) => p._exitCompletionSource.Task;280            /// <summary>281            /// Handles disposal of process and temporary user directory282            /// </summary>283            /// <param name="p"></param>284            public virtual void Dispose(LauncherBase p) => Disposed.EnterFrom(p, this);285            /// <inheritdoc />286            public override string ToString()287            {288                string name = GetType().Name;289                return name.Substring(0, name.Length - "State".Length);290            }291            private Exception InvalidOperation(string operationName)292                => new InvalidOperationException($"Cannot {operationName} in state {this}");293            /// <summary>294            /// Kills process if it is still alive.295            /// </summary>296            /// <param name="p"></param>297            private static void Kill(LauncherBase p)298            {299                try300                {301                    if (!p.Process.HasExited)302                    {303                        p.Process.Kill();304                    }305                }306                catch (InvalidOperationException)307                {308                    // Ignore309                }310            }311            #endregion312            #region Concrete state classes313            private class InitialState : State314            {315                public override Task StartAsync(LauncherBase p) => Starting.EnterFromAsync(p, this);316                public override Task ExitAsync(LauncherBase p, TimeSpan timeout)317                {318                    Exited.EnterFrom(p, this);319                    return Task.CompletedTask;320                }321                public override Task KillAsync(LauncherBase p)322                {323                    Exited.EnterFrom(p, this);324                    return Task.CompletedTask;325                }326                public override Task WaitForExitAsync(LauncherBase p) => Task.FromException(InvalidOperation("wait for exit"));327            }...

IdleOverrideTests.cs

Source:IdleOverrideTests.cs

1using System.Collections.Generic;2using System.Linq;3using System.Threading.Tasks;4using PuppeteerSharp.Tests.Attributes;5using PuppeteerSharp.Xunit;6using Xunit;7using Xunit.Abstractions;8namespace PuppeteerSharp.Tests.IdleOverrideTests9{10    [Collection(TestConstants.TestFixtureCollectionName)]11    public class IdleOverrideTests : PuppeteerPageBaseTest12    {13        public IdleOverrideTests(ITestOutputHelper output) : base(output)14        {15        }16        private async Task<string> GetIdleStateAsync()17        {18            var stateElement = await Page.QuerySelectorAsync("#state");19            return await Page.EvaluateFunctionAsync<string>(20                @"(element) => {21                    return element.innerText;22                }",23                stateElement);24        }25        private async Task VerifyStateAsync(string expectedState)26        {27            var actualState = await GetIdleStateAsync();28            Assert.Equal(expectedState, actualState);29        }30        [PuppeteerTest("idle_override.spec.ts", "Emulate idle state", "changing idle state emulation causes change of the IdleDetector state")]31        [SkipBrowserFact(skipFirefox: true)]32        public async Task ChangingIdleStateEmulationCausesChangeOfTheIdleDetectorState()33        {34            await Context.OverridePermissionsAsync(35                TestConstants.ServerUrl + "/idle-detector.html",36                new[]37                {38                    OverridePermission.IdleDetection,39                });40            await Page.GoToAsync(TestConstants.ServerUrl+ "/idle-detector.html");41            // Store initial state, as soon as it is not guaranteed to be `active, unlocked`.42            var initialState = await GetIdleStateAsync();43            // Emulate Idle states and verify IdleDetector updates state accordingly.44            await Page.EmulateIdleStateAsync(new EmulateIdleOverrides {45                IsUserActive = false,46                IsScreenUnlocked =  false,47            });48            await VerifyStateAsync("Idle state: idle, locked.");49            await Page.EmulateIdleStateAsync(new EmulateIdleOverrides {50                IsUserActive = true,51                IsScreenUnlocked = false,52            });53            await VerifyStateAsync("Idle state: active, locked.");54            await Page.EmulateIdleStateAsync(new EmulateIdleOverrides {55                IsUserActive = true,56                IsScreenUnlocked = true,57            });58            await VerifyStateAsync("Idle state: active, unlocked.");59            await Page.EmulateIdleStateAsync(new EmulateIdleOverrides {60                IsUserActive = false,61                IsScreenUnlocked = true,62            });63            await VerifyStateAsync("Idle state: idle, unlocked.");64            // Remove Idle emulation and verify IdleDetector is in initial state.65            await Page.EmulateIdleStateAsync();66            await VerifyStateAsync(initialState);67            // Emulate idle state again after removing emulation.68            await Page.EmulateIdleStateAsync(new EmulateIdleOverrides {69                IsUserActive = false,70                IsScreenUnlocked = false,71            });72            await VerifyStateAsync("Idle state: idle, locked.");73            // Remove emulation second time.74            await Page.EmulateIdleStateAsync();75            await VerifyStateAsync(initialState);76        }77    }78}...

StateManager.cs

Source:StateManager.cs

...6    {7        private State _currentState;8        public StateManager()9        {10            Initial = new InitialState(this);11            Starting = new ChromiumStartingState(this);12            Started = new StartedState(this);13            Exiting = new ExitingState(this);14            Killing = new KillingState(this);15            Exited = new ExitedState(this);16            Disposed = new DisposedState(this);17            CurrentState = Initial;18        }19        public State CurrentState20        {21            get => _currentState;22            set => _currentState = value;23        }24        internal State Initial { get; set; }...

InitialState.cs

Source:InitialState.cs

1using System;2using System.Threading.Tasks;3namespace PuppeteerSharp.States4{5    internal class InitialState : State6    {7        public InitialState(StateManager stateManager) : base(stateManager)8        {9        }10        public override Task StartAsync(LauncherBase p) => StateManager.Starting.EnterFromAsync(p, this, TimeSpan.Zero);11        public override Task ExitAsync(LauncherBase p, TimeSpan timeout)12        {13            StateManager.Exited.EnterFromAsync(p, this);14            return Task.CompletedTask;15        }16        public override Task KillAsync(LauncherBase p)17        {18            StateManager.Exited.EnterFromAsync(p, this);19            return Task.CompletedTask;20        }21        public override Task WaitForExitAsync(LauncherBase p) => Task.FromException(InvalidOperation("wait for exit"));...

InitialState

Using AI Code Generation

1using PuppeteerSharp;2using System.Threading.Tasks;3{4    {5        static async Task Main(string[] args)6        {7            await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);8            var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = false, DefaultViewport = null });9            var page = await browser.NewPageAsync();10            await page.SetViewportAsync(new ViewPortOptions { Width = 1920, Height = 1080 });11            await page.ScreenshotAsync("1.png");12            await browser.CloseAsync();13        }14    }15}16await page.ScreenshotAsync("1.png", new ScreenshotOptions { FullPage = true });17await page.ScreenshotAsync("1.png", new ScreenshotOptions { FullPage = true, WaitUntil = new[] { WaitUntilNavigation.Networkidle0 } });

InitialState

Using AI Code Generation

1using PuppeteerSharp;2using PuppeteerSharp.States;3using System;4using System.Threading.Tasks;5{6    {7        static async Task Main(string[] args)8        {9            var initialState = new InitialState();10            var browser = await Puppeteer.LaunchAsync(new LaunchOptions11            {12                Args = new[] { "--start-maximized" }13            });14            var page = await browser.NewPageAsync();15            await page.WaitForSelectorAsync("input[name='q']");16            await page.TypeAsync("input[name='q']", "PuppeteerSharp");17            await page.ClickAsync("input[value='Google Search']");18            await page.WaitForSelectorAsync("div#search");19            await page.ScreenshotAsync("google.png");20            await browser.CloseAsync();21        }22    }23}

InitialState

Using AI Code Generation

1var initialState = new InitialState();2initialState.InitialState();3var initialState = new InitialState();4initialState.InitialState();5var initialState = new InitialState();6initialState.InitialState();7var initialState = new InitialState();8initialState.InitialState();9var initialState = new InitialState();10initialState.InitialState();11var initialState = new InitialState();12initialState.InitialState();13var initialState = new InitialState();14initialState.InitialState();15var initialState = new InitialState();16initialState.InitialState();17var initialState = new InitialState();18initialState.InitialState();19var initialState = new InitialState();20initialState.InitialState();21var initialState = new InitialState();22initialState.InitialState();23var initialState = new InitialState();24initialState.InitialState();25var initialState = new InitialState();26initialState.InitialState();27var initialState = new InitialState();28initialState.InitialState();

InitialState

Using AI Code Generation

1var initialState = new PuppeteerSharp.States.InitialState();2initialState.InitialState();3var initialState = new PuppeteerSharp.States.InitialState();4initialState.InitialState();5var initialState = new PuppeteerSharp.States.InitialState();6initialState.InitialState();7var initialState = new PuppeteerSharp.States.InitialState();8initialState.InitialState();9var initialState = new PuppeteerSharp.States.InitialState();10initialState.InitialState();11var initialState = new PuppeteerSharp.States.InitialState();12initialState.InitialState();13var initialState = new PuppeteerSharp.States.InitialState();14initialState.InitialState();15var initialState = new PuppeteerSharp.States.InitialState();16initialState.InitialState();17var initialState = new PuppeteerSharp.States.InitialState();18initialState.InitialState();19var initialState = new PuppeteerSharp.States.InitialState();20initialState.InitialState();21var initialState = new PuppeteerSharp.States.InitialState();22initialState.InitialState();23var initialState = new PuppeteerSharp.States.InitialState();24initialState.InitialState();

InitialState

Using AI Code Generation

1using PuppeteerSharp.States;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            await InitialState();9        }10        private static async Task InitialState()11        {12            var options = new LaunchOptions { Headless = true };13            using (var browser = await Puppeteer.LaunchAsync(options))14            {15                var context = await browser.CreateIncognitoBrowserContextAsync();16                var page = await context.NewPageAsync();17                var state = await page.GetInitialStateAsync();18                Console.WriteLine(state);19            }20        }21    }22}23using PuppeteerSharp.States;24using System;25using System.Threading.Tasks;26{27    {28        static async Task Main(string[] args)29        {30            await InitialStateAsync();31        }32        private static async Task InitialStateAsync()33        {34            var options = new LaunchOptions { Headless = true };35            using (var browser = await Puppeteer.LaunchAsync(options))36            {37                var context = await browser.CreateIncognitoBrowserContextAsync();38                var page = await context.NewPageAsync();39                var state = await page.GetInitialStateAsync();40                Console.WriteLine(state);41            }42        }43    }44}45using PuppeteerSharp.States;46using System;47using System.Threading.Tasks;48{49    {50        static async Task Main(string[] args)51        {52            await InitialState();53        }54        private static async Task InitialState()55        {56            var options = new LaunchOptions { Headless = true };57            using (var browser = await Puppeteer.LaunchAsync(options))58            {59                var context = await browser.CreateIncognitoBrowserContextAsync();60                var page = await context.NewPageAsync();61                var state = await page.GetInitialStateAsync();62                Console.WriteLine(state);63            }64        }65    }66}

InitialState

Using AI Code Generation

1using PuppeteerSharp;2using System;3using System.Collections.Generic;4using System.Text;5using System.Threading.Tasks;6{7    {8        public async Task InitialStateMethod()9        {10            var options = new LaunchOptions { Headless = false };11            using (var browser = await Puppeteer.LaunchAsync(options))12            using (var page = await browser.NewPageAsync())13            {14                await page.SetContentAsync("<div>Initial content</div>");15                await page.ReloadAsync(new ReloadOptions { WaitUntil = new[] { WaitUntilNavigation.DOMContentLoaded } });16                var content = await page.GetContentAsync();17                Console.WriteLine(content);18            }19        }20    }21}22using PuppeteerSharp;23using System;24using System.Collections.Generic;25using System.Text;26using System.Threading.Tasks;27{28    {29        public async Task InitialStateMethod()30        {31            var options = new LaunchOptions { Headless = false };32            using (var browser = await Puppeteer.LaunchAsync(options))33            using (var page = await browser.NewPageAsync())34            {35                await page.SetContentAsync("<div>Initial content</div>");36                await page.ReloadAsync(new ReloadOptions { WaitUntil = new[] { WaitUntilNavigation.DOMContentLoaded } });37                var content = await page.GetContentAsync();38                Console.WriteLine(content);39            }40        }41    }42}43using PuppeteerSharp;44using System;45using System.Collections.Generic;46using System.Text;47using System.Threading.Tasks;48{49    {50        public async Task InitialStateMethod()51        {52            var options = new LaunchOptions { Headless = false };53            using (var browser = await Puppeteer.LaunchAsync(options))54            using (var page = await browser.NewPageAsync())55            {

InitialState

Using AI Code Generation

1{2    {3        public static async Task Main(string[] args)4        {5            {6                Args = new string[] { "--start-maximized" }7            };8            using (var browser = await Puppeteer.LaunchAsync(options))9            using (var page = await browser.NewPageAsync())10            {11                await page.WaitForSelectorAsync("input[title='Search']");12                await page.TypeAsync("input[title='Search']", "Puppeteer");13                await page.ClickAsync("input[value='Google Search']");14                await page.WaitForNavigationAsync();15                await page.ScreenshotAsync("google.png");16            }17        }18    }19}20{21    {22        public static async Task Main(string[] args)23        {24            {25                Args = new string[] { "--start-maximized" }26            };27            using (var browser = await Puppeteer.LaunchAsync(options))28            using (var page = await browser.NewPageAsync())29            {30                await page.WaitForSelectorAsync("input[title='Search']");31                await page.TypeAsync("input[title='Search']", "Puppeteer");32                await page.ClickAsync("input[value='Google Search']");33                await page.WaitForNavigationAsync();34                await page.ScreenshotAsync("google.png");35            }36        }37    }38}39{40    {41        public static async Task Main(string[] args)42        {43            {44                Args = new string[] { "--start-maximized" }45            };46            using (var browser = await Puppeteer.LaunchAsync(options))47            using (var page = await browser.NewPageAsync())48            {

InitialState

Using AI Code Generation

1using PuppeteerSharp.States;2using System.Threading.Tasks;3{4    {5        static async Task Main(string[] args)6        {7            var initialState = new InitialState();8            var browser = await Puppeteer.LaunchAsync(new LaunchOptions9            {10                Args = initialState.GetInitialStateArgs(),11            });12            var page = await browser.NewPageAsync();13            await page.ScreenshotAsync("screenshot.png");14        }15    }16}17using PuppeteerSharp.States;18using System.Threading.Tasks;19{20    {21        static async Task Main(string[] args)22        {23            var initialState = new InitialState();24            var browser = await Puppeteer.LaunchAsync(new LaunchOptions25            {26                Args = initialState.GetInitialStateArgs(),27            });28            var page = await browser.NewPageAsync();29            await page.ScreenshotAsync("screenshot.png");30        }31    }32}33using PuppeteerSharp.States;34using System.Threading.Tasks;35{36    {37        static async Task Main(string[] args)38        {39            var initialState = new InitialState();40            var browser = await Puppeteer.LaunchAsync(new LaunchOptions41            {42                Args = initialState.GetInitialStateArgs(),43            });44            var page = await browser.NewPageAsync();45            await page.ScreenshotAsync("screenshot.png");46        }47    }48}49using PuppeteerSharp.States;50using System.Threading.Tasks;51{52    {53        static async Task Main(string[] args)54        {55            var initialState = new InitialState();56            var browser = await Puppeteer.LaunchAsync(new LaunchOptions57            {

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