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How to use ExposeBindingAsync method of Microsoft.Playwright.Transport.Channels.PageChannel class

Best Playwright-dotnet code snippet using Microsoft.Playwright.Transport.Channels.PageChannel.ExposeBindingAsync

Page.cs

Source:Page.cs

...533        public async Task<IResponse> GoForwardAsync(PageGoForwardOptions options = default)534            => (await _channel.GoForwardAsync(options?.Timeout, options?.WaitUntil).ConfigureAwait(false))?.Object;535        public async Task<IResponse> ReloadAsync(PageReloadOptions options = default)536            => (await _channel.ReloadAsync(options?.Timeout, options?.WaitUntil).ConfigureAwait(false))?.Object;537        public Task ExposeBindingAsync(string name, Action callback, PageExposeBindingOptions options = default)538            => InnerExposeBindingAsync(name, (Delegate)callback, options?.Handle ?? false);539        public Task ExposeBindingAsync(string name, Action<BindingSource> callback)540            => InnerExposeBindingAsync(name, (Delegate)callback);541        public Task ExposeBindingAsync<T>(string name, Action<BindingSource, T> callback)542            => InnerExposeBindingAsync(name, (Delegate)callback);543        public Task ExposeBindingAsync<TResult>(string name, Func<BindingSource, TResult> callback)544            => InnerExposeBindingAsync(name, (Delegate)callback);545        public Task ExposeBindingAsync<TResult>(string name, Func<BindingSource, IJSHandle, TResult> callback)546            => InnerExposeBindingAsync(name, (Delegate)callback, true);547        public Task ExposeBindingAsync<T, TResult>(string name, Func<BindingSource, T, TResult> callback)548            => InnerExposeBindingAsync(name, (Delegate)callback);549        public Task ExposeBindingAsync<T1, T2, TResult>(string name, Func<BindingSource, T1, T2, TResult> callback)550            => InnerExposeBindingAsync(name, (Delegate)callback);551        public Task ExposeBindingAsync<T1, T2, T3, TResult>(string name, Func<BindingSource, T1, T2, T3, TResult> callback)552            => InnerExposeBindingAsync(name, (Delegate)callback);553        public Task ExposeBindingAsync<T1, T2, T3, T4, TResult>(string name, Func<BindingSource, T1, T2, T3, T4, TResult> callback)554            => InnerExposeBindingAsync(name, (Delegate)callback);555        public Task ExposeFunctionAsync(string name, Action callback)556            => ExposeBindingAsync(name, (BindingSource _) => callback());557        public Task ExposeFunctionAsync<T>(string name, Action<T> callback)558            => ExposeBindingAsync(name, (BindingSource _, T t) => callback(t));559        public Task ExposeFunctionAsync<TResult>(string name, Func<TResult> callback)560            => ExposeBindingAsync(name, (BindingSource _) => callback());561        public Task ExposeFunctionAsync<T, TResult>(string name, Func<T, TResult> callback)562            => ExposeBindingAsync(name, (BindingSource _, T t) => callback(t));563        public Task ExposeFunctionAsync<T1, T2, TResult>(string name, Func<T1, T2, TResult> callback)564            => ExposeBindingAsync(name, (BindingSource _, T1 t1, T2 t2) => callback(t1, t2));565        public Task ExposeFunctionAsync<T1, T2, T3, TResult>(string name, Func<T1, T2, T3, TResult> callback)566            => ExposeBindingAsync(name, (BindingSource _, T1 t1, T2 t2, T3 t3) => callback(t1, t2, t3));567        public Task ExposeFunctionAsync<T1, T2, T3, T4, TResult>(string name, Func<T1, T2, T3, T4, TResult> callback)568            => ExposeBindingAsync(name, (BindingSource _, T1 t1, T2 t2, T3 t3, T4 t4) => callback(t1, t2, t3, t4));569        public async Task<byte[]> PdfAsync(PagePdfOptions options = default)570        {571            if (!Context.IsChromium)572            {573                throw new NotSupportedException("This browser doesn't support this action.");574            }575            byte[] result = await _channel.PdfAsync(576                scale: options?.Scale,577                displayHeaderFooter: options?.DisplayHeaderFooter,578                headerTemplate: options?.HeaderTemplate,579                footerTemplate: options?.FooterTemplate,580                printBackground: options?.PrintBackground,581                landscape: options?.Landscape,582                pageRanges: options?.PageRanges,583                format: options?.Format,584                width: options?.Width,585                height: options?.Height,586                margin: options?.Margin,587                preferCSSPageSize: options?.PreferCSSPageSize).ConfigureAwait(false);588            if (!string.IsNullOrEmpty(options?.Path))589            {590                Directory.CreateDirectory(new FileInfo(options.Path).Directory.FullName);591                File.WriteAllBytes(options.Path, result);592            }593            return result;594        }595        public Task AddInitScriptAsync(string script, string scriptPath)596            => _channel.AddInitScriptAsync(ScriptsHelper.EvaluationScript(script, scriptPath));597        public Task RouteAsync(string url, Action<IRoute> handler, PageRouteOptions options = null)598            => RouteAsync(new Regex(Context.CombineUrlWithBase(url).GlobToRegex()), null, handler, options);599        public Task RouteAsync(Regex url, Action<IRoute> handler, PageRouteOptions options = null)600             => RouteAsync(url, null, handler, options);601        public Task RouteAsync(Func<string, bool> url, Action<IRoute> handler, PageRouteOptions options = null)602            => RouteAsync(null, url, handler, options);603        public Task UnrouteAsync(string urlString, Action<IRoute> handler)604            => UnrouteAsync(new Regex(Context.CombineUrlWithBase(urlString).GlobToRegex()), null, handler);605        public Task UnrouteAsync(Regex urlString, Action<IRoute> handler)606            => UnrouteAsync(urlString, null, handler);607        public Task UnrouteAsync(Func<string, bool> urlFunc, Action<IRoute> handler)608            => UnrouteAsync(null, urlFunc, handler);609        public Task WaitForLoadStateAsync(LoadState? state = default, PageWaitForLoadStateOptions options = default)610            => MainFrame.WaitForLoadStateAsync(state, new() { Timeout = options?.Timeout });611        public Task SetViewportSizeAsync(int width, int height)612        {613            ViewportSize = new() { Width = width, Height = height };614            return _channel.SetViewportSizeAsync(ViewportSize);615        }616        public Task SetCheckedAsync(string selector, bool checkedState, PageSetCheckedOptions options = null)617            => checkedState ?618            MainFrame.CheckAsync(selector, new()619            {620                Position = options?.Position,621                Force = options?.Force,622                NoWaitAfter = options?.NoWaitAfter,623                Strict = options?.Strict,624                Timeout = options?.Timeout,625                Trial = options?.Trial,626            })627            : MainFrame.UncheckAsync(selector, new()628            {629                Position = options?.Position,630                Force = options?.Force,631                NoWaitAfter = options?.NoWaitAfter,632                Timeout = options?.Timeout,633                Trial = options?.Trial,634                Strict = options?.Strict,635            });636        public Task CheckAsync(string selector, PageCheckOptions options = default)637            => MainFrame.CheckAsync(selector, new()638            {639                Position = options?.Position,640                Force = options?.Force,641                NoWaitAfter = options?.NoWaitAfter,642                Strict = options?.Strict,643                Timeout = options?.Timeout,644                Trial = options?.Trial,645            });646        public Task UncheckAsync(string selector, PageUncheckOptions options = default)647            => MainFrame.UncheckAsync(selector, new()648            {649                Position = options?.Position,650                Force = options?.Force,651                NoWaitAfter = options?.NoWaitAfter,652                Timeout = options?.Timeout,653                Trial = options?.Trial,654                Strict = options?.Strict,655            });656        public Task DispatchEventAsync(string selector, string type, object eventInit = default, PageDispatchEventOptions options = default)657             => MainFrame.DispatchEventAsync(selector, type, eventInit, new() { Timeout = options?.Timeout, Strict = options?.Strict });658        public Task<string> GetAttributeAsync(string selector, string name, PageGetAttributeOptions options = default)659             => MainFrame.GetAttributeAsync(selector, name, new()660             {661                 Timeout = options?.Timeout,662                 Strict = options?.Strict,663             });664        public Task<string> InnerHTMLAsync(string selector, PageInnerHTMLOptions options = default)665             => MainFrame.InnerHTMLAsync(selector, new()666             {667                 Timeout = options?.Timeout,668                 Strict = options?.Strict,669             });670        public Task<string> InnerTextAsync(string selector, PageInnerTextOptions options = default)671             => MainFrame.InnerTextAsync(selector, new()672             {673                 Timeout = options?.Timeout,674                 Strict = options?.Strict,675             });676        public Task<string> TextContentAsync(string selector, PageTextContentOptions options = default)677             => MainFrame.TextContentAsync(selector, new()678             {679                 Timeout = options?.Timeout,680                 Strict = options?.Strict,681             });682        public Task TapAsync(string selector, PageTapOptions options = default)683            => MainFrame.TapAsync(684                selector,685                new()686                {687                    Modifiers = options?.Modifiers,688                    Position = options?.Position,689                    Force = options?.Force,690                    NoWaitAfter = options?.NoWaitAfter,691                    Timeout = options?.Timeout,692                    Trial = options?.Trial,693                    Strict = options?.Strict,694                });695        public Task<bool> IsCheckedAsync(string selector, PageIsCheckedOptions options = default)696            => MainFrame.IsCheckedAsync(selector, new()697            {698                Timeout = options?.Timeout,699                Strict = options?.Strict,700            });701        public Task<bool> IsDisabledAsync(string selector, PageIsDisabledOptions options = default)702            => MainFrame.IsDisabledAsync(selector, new()703            {704                Timeout = options?.Timeout,705                Strict = options?.Strict,706            });707        public Task<bool> IsEditableAsync(string selector, PageIsEditableOptions options = default)708            => MainFrame.IsEditableAsync(selector, new()709            {710                Timeout = options?.Timeout,711                Strict = options?.Strict,712            });713        public Task<bool> IsEnabledAsync(string selector, PageIsEnabledOptions options = default)714            => MainFrame.IsEnabledAsync(selector, new()715            {716                Timeout = options?.Timeout,717                Strict = options?.Strict,718            });719#pragma warning disable CS0612 // Type or member is obsolete720        public Task<bool> IsHiddenAsync(string selector, PageIsHiddenOptions options = default)721            => MainFrame.IsHiddenAsync(selector, new()722            {723                Timeout = options?.Timeout,724                Strict = options?.Strict,725            });726        public Task<bool> IsVisibleAsync(string selector, PageIsVisibleOptions options = default)727            => MainFrame.IsVisibleAsync(selector, new()728            {729                Timeout = options?.Timeout,730                Strict = options?.Strict,731            });732#pragma warning restore CS0612 // Type or member is obsolete733        public Task PauseAsync() => Context.Channel.PauseAsync();734        public void SetDefaultNavigationTimeout(float timeout) => DefaultNavigationTimeout = timeout;735        public void SetDefaultTimeout(float timeout) => DefaultTimeout = timeout;736        public Task<string> InputValueAsync(string selector, PageInputValueOptions options = null)737            => MainFrame.InputValueAsync(selector, new()738            {739                Timeout = options?.Timeout,740                Strict = options?.Strict,741            });742        public Task DragAndDropAsync(string source, string target, PageDragAndDropOptions options = null)743            => MainFrame.DragAndDropAsync(source, target, new()744            {745                Force = options?.Force,746                NoWaitAfter = options?.NoWaitAfter,747                Timeout = options?.Timeout,748                Trial = options?.Trial,749                Strict = options?.Strict,750            });751        internal void NotifyPopup(Page page) => Popup?.Invoke(this, page);752        internal void OnFrameNavigated(Frame frame)753            => FrameNavigated?.Invoke(this, frame);754        internal void FireRequest(IRequest request) => Request?.Invoke(this, request);755        internal void FireRequestFailed(IRequest request) => RequestFailed?.Invoke(this, request);756        internal void FireRequestFinished(IRequest request) => RequestFinished?.Invoke(this, request);757        internal void FireResponse(IResponse response) => Response?.Invoke(this, response);758        private Task RouteAsync(Regex urlRegex, Func<string, bool> urlFunc, Action<IRoute> handler, PageRouteOptions options)759            => RouteAsync(new()760            {761                Regex = urlRegex,762                Function = urlFunc,763                Handler = handler,764                Times = options?.Times,765            });766        private Task RouteAsync(RouteSetting setting)767        {768            _routes.Insert(0, setting);769            if (_routes.Count == 1)770            {771                return _channel.SetNetworkInterceptionEnabledAsync(true);772            }773            return Task.CompletedTask;774        }775        private Task UnrouteAsync(Regex urlRegex, Func<string, bool> urlFunc, Action<IRoute> handler = null)776            => UnrouteAsync(new()777            {778                Function = urlFunc,779                Regex = urlRegex,780                Handler = handler,781            });782        private Task UnrouteAsync(RouteSetting setting)783        {784            var newRoutesList = new List<RouteSetting>();785            newRoutesList.AddRange(_routes.Where(r =>786                (setting.Regex != null && !(r.Regex == setting.Regex || (r.Regex.ToString() == setting.Regex.ToString() && r.Regex.Options == setting.Regex.Options))) ||787                (setting.Function != null && r.Function != setting.Function) ||788                (setting.Handler != null && r.Handler != setting.Handler)));789            _routes = newRoutesList;790            if (_routes.Count == 0)791            {792                return DisableInterceptionAsync();793            }794            return Task.CompletedTask;795        }796        internal void OnClose()797        {798            IsClosed = true;799            Context?.PagesList.Remove(this);800            RejectPendingOperations(false);801            Close?.Invoke(this, this);802        }803        private void Channel_Crashed(object sender, EventArgs e)804        {805            RejectPendingOperations(true);806            Crash?.Invoke(this, this);807        }808        private void Channel_BindingCall(object sender, BindingCallEventArgs e)809        {810            if (Bindings.TryGetValue(e.BindingCall.Name, out var binding))811            {812                _ = e.BindingCall.CallAsync(binding);813            }814        }815        private void OnRoute(Route route, IRequest request)816        {817            foreach (var routeHandler in _routes.ToList())818            {819                if ((routeHandler.Regex?.IsMatch(request.Url) == true) ||820                    (routeHandler.Function?.Invoke(request.Url) == true))821                {822                    try823                    {824                        routeHandler.Handle(route);825                    }826                    finally827                    {828                        if (!routeHandler.IsActive())829                        {830                            _routes.Remove(routeHandler);831                            if (_routes.Count == 0)832                            {833                                DisableInterceptionAsync().ConfigureAwait(false);834                            }835                        }836                    }837                    return;838                }839            }840            Context.OnRoute(route, request);841        }842        internal async Task DisableInterceptionAsync()843        {844            await Channel.SetNetworkInterceptionEnabledAsync(false).ConfigureAwait(false);845        }846        private void Channel_FrameDetached(object sender, IFrame args)847        {848            var frame = (Frame)args;849            _frames.Remove(frame);850            frame.IsDetached = true;851            frame.ParentFrame?.ChildFramesList?.Remove(frame);852            FrameDetached?.Invoke(this, args);853        }854        private void Channel_FrameAttached(object sender, IFrame args)855        {856            var frame = (Frame)args;857            frame.Page = this;858            _frames.Add(frame);859            frame.ParentFrame?.ChildFramesList?.Add(frame);860            FrameAttached?.Invoke(this, args);861        }862        private void RejectPendingOperations(bool isCrash)863        {864            foreach (var (_, waitTcs) in _waitForCancellationTcs.Where(e => e.PageEvent != (isCrash ? PageEvent.Crash : PageEvent.Close)))865            {866                waitTcs.TrySetException(new PlaywrightException(isCrash ? "Page crashed" : "Page closed"));867            }868            _waitForCancellationTcs.Clear();869        }870        private Task InnerExposeBindingAsync(string name, Delegate callback, bool handle = false)871        {872            if (Bindings.ContainsKey(name))873            {874                throw new PlaywrightException($"Function \"{name}\" has been already registered");875            }876            Bindings.Add(name, callback);877            return _channel.ExposeBindingAsync(name, handle);878        }879        private Video ForceVideo() => _video ??= new(this, _channel.Connection);880        private FrameSetInputFilesOptions Map(PageSetInputFilesOptions options)881        {882            if (options == null)883            {884                return null;885            }886            return new()887            {888                NoWaitAfter = options.NoWaitAfter,889                Timeout = options.Timeout,890                Strict = options.Strict,891            };...

BrowserContext.cs

Source:BrowserContext.cs

...150                // Swallow exception151            }152        }153        public Task<IReadOnlyList<BrowserContextCookiesResult>> CookiesAsync(IEnumerable<string> urls = null) => Channel.CookiesAsync(urls);154        public Task ExposeBindingAsync(string name, Action callback, BrowserContextExposeBindingOptions options = default)155            => ExposeBindingAsync(name, callback, handle: options?.Handle ?? false);156        public Task ExposeBindingAsync(string name, Action<BindingSource> callback)157            => ExposeBindingAsync(name, (Delegate)callback);158        public Task ExposeBindingAsync<T>(string name, Action<BindingSource, T> callback)159            => ExposeBindingAsync(name, (Delegate)callback);160        public Task ExposeBindingAsync<TResult>(string name, Func<BindingSource, TResult> callback)161            => ExposeBindingAsync(name, (Delegate)callback);162        public Task ExposeBindingAsync<TResult>(string name, Func<BindingSource, IJSHandle, TResult> callback)163            => ExposeBindingAsync(name, callback, true);164        public Task ExposeBindingAsync<T, TResult>(string name, Func<BindingSource, T, TResult> callback)165            => ExposeBindingAsync(name, (Delegate)callback);166        public Task ExposeBindingAsync<T1, T2, TResult>(string name, Func<BindingSource, T1, T2, TResult> callback)167            => ExposeBindingAsync(name, (Delegate)callback);168        public Task ExposeBindingAsync<T1, T2, T3, TResult>(string name, Func<BindingSource, T1, T2, T3, TResult> callback)169            => ExposeBindingAsync(name, (Delegate)callback);170        public Task ExposeBindingAsync<T1, T2, T3, T4, TResult>(string name, Func<BindingSource, T1, T2, T3, T4, TResult> callback)171            => ExposeBindingAsync(name, (Delegate)callback);172        public Task ExposeFunctionAsync(string name, Action callback)173            => ExposeBindingAsync(name, (BindingSource _) => callback());174        public Task ExposeFunctionAsync<T>(string name, Action<T> callback)175            => ExposeBindingAsync(name, (BindingSource _, T t) => callback(t));176        public Task ExposeFunctionAsync<TResult>(string name, Func<TResult> callback)177            => ExposeBindingAsync(name, (BindingSource _) => callback());178        public Task ExposeFunctionAsync<T, TResult>(string name, Func<T, TResult> callback)179            => ExposeBindingAsync(name, (BindingSource _, T t) => callback(t));180        public Task ExposeFunctionAsync<T1, T2, TResult>(string name, Func<T1, T2, TResult> callback)181            => ExposeBindingAsync(name, (BindingSource _, T1 t1, T2 t2) => callback(t1, t2));182        public Task ExposeFunctionAsync<T1, T2, T3, TResult>(string name, Func<T1, T2, T3, TResult> callback)183            => ExposeBindingAsync(name, (BindingSource _, T1 t1, T2 t2, T3 t3) => callback(t1, t2, t3));184        public Task ExposeFunctionAsync<T1, T2, T3, T4, TResult>(string name, Func<T1, T2, T3, T4, TResult> callback)185            => ExposeBindingAsync(name, (BindingSource _, T1 t1, T2 t2, T3 t3, T4 t4) => callback(t1, t2, t3, t4));186        public Task GrantPermissionsAsync(IEnumerable<string> permissions, BrowserContextGrantPermissionsOptions options = default)187            => Channel.GrantPermissionsAsync(permissions, options?.Origin);188        public async Task<IPage> NewPageAsync()189        {190            if (OwnerPage != null)191            {192                throw new PlaywrightException("Please use Browser.NewContextAsync()");193            }194            return (await Channel.NewPageAsync().ConfigureAwait(false)).Object;195        }196        public Task RouteAsync(string url, Action<IRoute> handler, BrowserContextRouteOptions options = default)197            => RouteAsync(new Regex(CombineUrlWithBase(url).GlobToRegex()), null, handler, options);198        public Task RouteAsync(Regex url, Action<IRoute> handler, BrowserContextRouteOptions options = default)199            => RouteAsync(url, null, handler, options);200        public Task RouteAsync(Func<string, bool> url, Action<IRoute> handler, BrowserContextRouteOptions options = default)201            => RouteAsync(null, url, handler, options);202        public Task SetExtraHTTPHeadersAsync(IEnumerable<KeyValuePair<string, string>> headers)203            => Channel.SetExtraHTTPHeadersAsync(headers);204        public Task SetGeolocationAsync(Geolocation geolocation) => Channel.SetGeolocationAsync(geolocation);205        public Task SetOfflineAsync(bool offline) => Channel.SetOfflineAsync(offline);206        public async Task<string> StorageStateAsync(BrowserContextStorageStateOptions options = default)207        {208            string state = JsonSerializer.Serialize(209                await Channel.GetStorageStateAsync().ConfigureAwait(false),210                JsonExtensions.DefaultJsonSerializerOptions);211            if (!string.IsNullOrEmpty(options?.Path))212            {213                File.WriteAllText(options?.Path, state);214            }215            return state;216        }217        public Task UnrouteAsync(string urlString, Action<IRoute> handler = default)218            => UnrouteAsync(new Regex(CombineUrlWithBase(urlString).GlobToRegex()), null, handler);219        public Task UnrouteAsync(Regex urlRegex, Action<IRoute> handler = default)220            => UnrouteAsync(urlRegex, null, handler);221        public Task UnrouteAsync(Func<string, bool> urlFunc, Action<IRoute> handler = default)222            => UnrouteAsync(null, urlFunc, handler);223        public async Task<T> InnerWaitForEventAsync<T>(PlaywrightEvent<T> playwrightEvent, Func<Task> action = default, Func<T, bool> predicate = default, float? timeout = default)224        {225            if (playwrightEvent == null)226            {227                throw new ArgumentException("Page event is required", nameof(playwrightEvent));228            }229            timeout ??= DefaultTimeout;230            using var waiter = new Waiter(this, $"context.WaitForEventAsync(\"{playwrightEvent.Name}\")");231            waiter.RejectOnTimeout(Convert.ToInt32(timeout), $"Timeout {timeout}ms exceeded while waiting for event \"{playwrightEvent.Name}\"");232            if (playwrightEvent.Name != BrowserContextEvent.Close.Name)233            {234                waiter.RejectOnEvent<IBrowserContext>(this, BrowserContextEvent.Close.Name, new("Context closed"));235            }236            var result = waiter.WaitForEventAsync(this, playwrightEvent.Name, predicate);237            if (action != null)238            {239                await WrapApiBoundaryAsync(() => Task.WhenAll(result, action())).ConfigureAwait(false);240            }241            return await result.ConfigureAwait(false);242        }243        public Task<IPage> WaitForPageAsync(BrowserContextWaitForPageOptions options = default)244            => InnerWaitForEventAsync(BrowserContextEvent.Page, null, options?.Predicate, options?.Timeout);245        public Task<IPage> RunAndWaitForPageAsync(Func<Task> action, BrowserContextRunAndWaitForPageOptions options = default)246            => InnerWaitForEventAsync(BrowserContextEvent.Page, action, options?.Predicate, options?.Timeout);247        public ValueTask DisposeAsync() => new ValueTask(CloseAsync());248        public void SetDefaultNavigationTimeout(float timeout) => DefaultNavigationTimeout = timeout;249        public void SetDefaultTimeout(float timeout) => DefaultTimeout = timeout;250        internal void OnRoute(Route route, IRequest request)251        {252            foreach (var routeHandler in _routes)253            {254                if (255                    routeHandler.Regex?.IsMatch(request.Url) == true ||256                    routeHandler.Function?.Invoke(request.Url) == true)257                {258                    try259                    {260                        routeHandler.Handle(route);261                    }262                    finally263                    {264                        if (!routeHandler.IsActive())265                        {266                            _routes.Remove(routeHandler);267                            if (_routes.Count == 0)268                            {269                                DisableInterceptionAsync().ConfigureAwait(false);270                            }271                        }272                    }273                    return;274                }275            }276            route.ContinueAsync().IgnoreException();277        }278        internal async Task DisableInterceptionAsync()279        {280            await Channel.SetNetworkInterceptionEnabledAsync(false).ConfigureAwait(false);281        }282        internal bool UrlMatches(string url, string glob)283           => new Regex(CombineUrlWithBase(glob).GlobToRegex()).Match(url).Success;284        internal string CombineUrlWithBase(string url)285        {286            var baseUrl = Options?.BaseURL;287            if (string.IsNullOrEmpty(baseUrl)288                || (url?.StartsWith("*", StringComparison.InvariantCultureIgnoreCase) ?? false)289                || !Uri.IsWellFormedUriString(url, UriKind.RelativeOrAbsolute))290            {291                return url;292            }293            var mUri = new Uri(url, UriKind.RelativeOrAbsolute);294            if (!mUri.IsAbsoluteUri)295            {296                return new Uri(new Uri(baseUrl), mUri).ToString();297            }298            return url;299        }300        private Task RouteAsync(Regex urlRegex, Func<string, bool> urlFunc, Action<IRoute> handler, BrowserContextRouteOptions options)301            => RouteAsync(new()302            {303                Regex = urlRegex,304                Function = urlFunc,305                Handler = handler,306                Times = options?.Times,307            });308        private Task RouteAsync(RouteSetting setting)309        {310            _routes.Insert(0, setting);311            if (_routes.Count == 1)312            {313                return Channel.SetNetworkInterceptionEnabledAsync(true);314            }315            return Task.CompletedTask;316        }317        private Task UnrouteAsync(Regex urlRegex, Func<string, bool> urlFunc, Action<IRoute> handler = null)318            => UnrouteAsync(new()319            {320                Function = urlFunc,321                Regex = urlRegex,322                Handler = handler,323            });324        private Task UnrouteAsync(RouteSetting setting)325        {326            var newRoutesList = new List<RouteSetting>();327            newRoutesList.AddRange(_routes.Where(r =>328                (setting.Regex != null && !(r.Regex == setting.Regex || (r.Regex.ToString() == setting.Regex.ToString() && r.Regex.Options == setting.Regex.Options))) ||329                (setting.Function != null && r.Function != setting.Function) ||330                (setting.Handler != null && r.Handler != setting.Handler)));331            _routes = newRoutesList;332            if (_routes.Count == 0)333            {334                return Channel.SetNetworkInterceptionEnabledAsync(false);335            }336            return Task.CompletedTask;337        }338        internal void OnClose()339        {340            if (Browser != null)341            {342                ((Browser)Browser).BrowserContextsList.Remove(this);343            }344            Close?.Invoke(this, this);345            _closeTcs.TrySetResult(true);346        }347        private void Channel_OnPage(object sender, BrowserContextPageEventArgs e)348        {349            var page = e.PageChannel.Object;350            page.Context = this;351            PagesList.Add(page);352            Page?.Invoke(this, page);353            if (page.Opener?.IsClosed == false)354            {355                page.Opener.NotifyPopup(page);356            }357        }358        private void Channel_BindingCall(object sender, BindingCallEventArgs e)359        {360            if (_bindings.TryGetValue(e.BindingCall.Name, out var binding))361            {362                _ = e.BindingCall.CallAsync(binding);363            }364        }365        private void Channel_Route(object sender, RouteEventArgs e) => OnRoute(e.Route, e.Request);366        private Task ExposeBindingAsync(string name, Delegate callback, bool handle = false)367        {368            foreach (var page in PagesList)369            {370                if (page.Bindings.ContainsKey(name))371                {372                    throw new PlaywrightException($"Function \"{name}\" has been already registered in one of the pages");373                }374            }375            if (_bindings.ContainsKey(name))376            {377                throw new PlaywrightException($"Function \"{name}\" has been already registered");378            }379            _bindings.Add(name, callback);380            return Channel.ExposeBindingAsync(name, handle);381        }382    }383}...

PageChannel.cs

Source:PageChannel.cs

...150                new Dictionary<string, object>151                {152                    ["runBeforeUnload"] = runBeforeUnload,153                });154        internal Task ExposeBindingAsync(string name, bool needsHandle)155            => Connection.SendMessageToServerAsync<PageChannel>(156                Guid,157                "exposeBinding",158                new Dictionary<string, object>159                {160                    ["name"] = name,161                    ["needsHandle"] = needsHandle,162                });163        internal Task AddInitScriptAsync(string script)164            => Connection.SendMessageToServerAsync<PageChannel>(165                Guid,166                "addInitScript",167                new Dictionary<string, object>168                {...

BrowserContextChannel.cs

Source:BrowserContextChannel.cs

...117                new Dictionary<string, object>118                {119                    ["timeout"] = timeout,120                });121        internal Task ExposeBindingAsync(string name, bool needsHandle)122            => Connection.SendMessageToServerAsync<PageChannel>(123                Guid,124                "exposeBinding",125                new Dictionary<string, object>126                {127                    ["name"] = name,128                    ["needsHandle"] = needsHandle,129                });130        internal Task AddInitScriptAsync(string script)131            => Connection.SendMessageToServerAsync<PageChannel>(132                Guid,133                "addInitScript",134                new Dictionary<string, object>135                {...

ExposeBindingAsync

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.ExposeBindingAsync("myBinding", (BindingSource source, object arg) =>14            {15                Console.WriteLine("myBinding called");16                return Task.CompletedTask;17            });18            await page.ClickAsync("text=Get started");19            await page.ScreenshotAsync("screenshot.png");20            await page.CloseAsync();21        }22    }23}24using Microsoft.Playwright;25using System;26using System.Threading.Tasks;27{28    {29        static async Task Main(string[] args)30        {31            using var playwright = await Playwright.CreateAsync();32            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions33            {34            });35            var page = await browser.NewPageAsync();36            await page.ExposeBindingAsync("myBinding", (BindingSource source, object arg) =>37            {38                Console.WriteLine("myBinding called");39                return Task.CompletedTask;40            });41            await page.ClickAsync("text=Get started");42            await page.ScreenshotAsync("screenshot.png");43            await page.CloseAsync();44        }45    }46}47using Microsoft.Playwright;48using System;49using System.Threading.Tasks;50{51    {52        static async Task Main(string[] args)53        {54            using var playwright = await Playwright.CreateAsync();55            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions56            {57            });58            var page = await browser.NewPageAsync();59            await page.ExposeBindingAsync("myBinding", (BindingSource source

ExposeBindingAsync

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    static async Task Main()6    {7        using var playwright = await Playwright.CreateAsync();8        await using var browser = await playwright.Chromium.LaunchAsync();9        var page = await browser.NewPageAsync();10        await page.ExposeBindingAsync("add", (IJSHandle arg1, IJSHandle arg2) => Task.FromResult((int)arg1.GetJsonValueAsync() + (int)arg2.GetJsonValueAsync()));11        var result = await page.EvaluateAsync<int>("async() => { return await add(5, 6); }");12        Console.WriteLine(result);13    }14}

ExposeBindingAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.ExposeBindingAsync("myBinding", (BindingSource source, object arg) => {14                return Task.FromResult("hello from binding");15            });16            await page.EvaluateAsync(@"async () => {17                await window.myBinding('hello');18            }");19        }20    }21}22await page.EvaluateAsync(@"async () => {23                await window.myBinding('hello');24            }");

ExposeBindingAsync

Using AI Code Generation

1using Microsoft.Playwright;2using System;3using System.Threading.Tasks;4{5    {6        static async Task Main(string[] args)7        {8            var playwright = await Playwright.CreateAsync();9            var browser = await playwright.Chromium.LaunchAsync(new LaunchOptions10            {11            });12            var page = await browser.NewPageAsync();13            await page.ExposeBindingAsync("myFunction", (BindingSource source, object arg) =>14            {15                Console.WriteLine(arg);16                return Task.CompletedTask;17            });18            await page.EvaluateAsync(@"() => {19                window.myFunction('hello');20            }");21        }22    }23}

ExposeBindingAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4{5    {6        static async Task Main(string[] args)7        {8            await using var playwright = await Playwright.CreateAsync();9            await using var browser = await playwright.Chromium.LaunchAsync(headless: false);10            var page = await browser.NewPageAsync();11            var pageChannel = page.Channel;12            var bindingName = "myBinding";13            var bindingFunction = "function(){return 'Hello World!';}";14            await pageChannel.ExposeBindingAsync(bindingName, bindingFunction);15            var result = await page.EvalOnSelectorAsync<string>("text=Get started", "myBinding()");16            Console.WriteLine(result);17        }18    }19}

ExposeBindingAsync

Using AI Code Generation

1using System.Threading.Tasks;2using Microsoft.Playwright;3{4    {5        static async Task Main(string[] args)6        {7            using var playwright = await Playwright.CreateAsync();8            await using var browser = await playwright.Chromium.LaunchAsync();9            var page = await browser.NewPageAsync();10            await page.ExposeBindingAsync("add", (IJSHandle arg1, IJSHandle arg2) =>11            {12                return Task.FromResult((int)arg1 + (int)arg2);13            });14            var result = await page.EvaluateAsync<int>("() => add(5, 6)");

ExposeBindingAsync

Using AI Code Generation

1using System;2using System.Threading.Tasks;3using Microsoft.Playwright;4using Microsoft.Playwright.Transport.Channels;5{6    {7        static async Task Main(string[] args)8        {9            await using var playwright = await Playwright.CreateAsync();10            await using var browser = await playwright.Chromium.LaunchAsync();11            var page = await browser.NewPageAsync();12            await page.ExposeBindingAsync("myBinding", (string arg) =>13            {14                Console.WriteLine(arg);15            });16            await page.EvaluateAsync("() => myBinding('hello')");17        }18    }19}

ExposeBindingAsync

Using AI Code Generation

1var page = await browser.NewPageAsync();2await page.ExposeBindingAsync("myBinding", (string source, IJSHandle arg) =>3{4    Console.WriteLine("myBinding called with: " + arg);5    return Task.CompletedTask;6});7await page.EvaluateAsync("() => myBinding('hello')");8var page = await browser.NewPageAsync();9await page.ExposeBindingAsync("myBinding", (string source, IJSHandle arg) =>10{11    Console.WriteLine("myBinding called with: " + arg);12    return Task.CompletedTask;13});14await page.EvaluateAsync("() => myBinding('hello')");15var page = await browser.NewPageAsync();16await page.ExposeBindingAsync("myBinding", (string source, IJSHandle arg) =>17{18    Console.WriteLine("myBinding called with: " + arg);19    return Task.CompletedTask;20});21await page.EvaluateAsync("() => myBinding('hello')");22var page = await browser.NewPageAsync();23await page.ExposeBindingAsync("myBinding", (string source, IJSHandle arg) =>24{25    Console.WriteLine("myBinding called with: " + arg);26    return Task.CompletedTask;27});28await page.EvaluateAsync("() => myBinding('hello')");29var page = await browser.NewPageAsync();30await page.ExposeBindingAsync("myBinding", (string source, IJSHandle arg) =>31{32    Console.WriteLine("myBinding called with: " + arg);33    return Task.CompletedTask;34});35await page.EvaluateAsync("() => myBinding('hello')");

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.