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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We cannot convert the whole code for you but here are some pointers. You need to take one chunk of problem at a time.
Let us look into the JS code,
let count = 0;
while (await page.$('#search-content button.btn-icon') !== null && count != 1) {}
It's creating a while look, which stops if count is 1.
Now your C# Code,
while (await page.QuerySelectorAsync("#search-content button.btn-icon") != null)
It's not checking for count, this will end up in infinite while loop.
You should count the number,
int count = 0;
while (await page.QuerySelectorAsync("#search-content button.btn-icon") != null && count != 1){
// other code
count++;
}
This way it will stop after it finds one result.
Your rest of the question is about Promise.all and few other stuff. Here are some useful links,
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