How to use DomDescribeNodeRequest class of PuppeteerSharp.Messaging package

Best Puppeteer-sharp code snippet using PuppeteerSharp.Messaging.DomDescribeNodeRequest

ElementHandle.cs

Source:ElementHandle.cs Github

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...203 {204 throw new PuppeteerException("Multiple file uploads only work with <input type=file multiple>");205 }206 var objectId = RemoteObject.ObjectId;207 var node = await Client.SendAsync<DomDescribeNodeResponse>("DOM.describeNode", new DomDescribeNodeRequest208 {209 ObjectId = RemoteObject.ObjectId210 }).ConfigureAwait(false);211 var backendNodeId = node.Node.BackendNodeId;212 if (!filePaths.Any() || filePaths == null)213 {214 await EvaluateFunctionAsync(@"(element) => {215 element.files = new DataTransfer().files;216 // Dispatch events for this case because it should behave akin to a user action.217 element.dispatchEvent(new Event('input', { bubbles: true }));218 element.dispatchEvent(new Event('change', { bubbles: true }));219 }").ConfigureAwait(false);220 }221 else222 {223 var files = resolveFilePaths ? filePaths.Select(Path.GetFullPath).ToArray() : filePaths;224 CheckForFileAccess(files);225 await Client.SendAsync("DOM.setFileInputFiles", new DomSetFileInputFilesRequest226 {227 ObjectId = objectId,228 Files = files,229 BackendNodeId = backendNodeId230 }).ConfigureAwait(false);231 }232 }233 private void CheckForFileAccess(string[] files)234 {235 foreach (var file in files)236 {237 try238 {239 File.Open(file, FileMode.Open).Dispose();240 }241 catch (Exception ex)242 {243 throw new PuppeteerException($"{files} does not exist or is not readable", ex);244 }245 }246 }247 /// <summary>248 /// Scrolls element into view if needed, and then uses <see cref="Touchscreen.TapAsync(decimal, decimal)"/> to tap in the center of the element.249 /// </summary>250 /// <exception cref="PuppeteerException">if the element is detached from DOM</exception>251 /// <returns>Task which resolves when the element is successfully tapped</returns>252 public async Task TapAsync()253 {254 await ScrollIntoViewIfNeededAsync().ConfigureAwait(false);255 var (x, y) = await ClickablePointAsync().ConfigureAwait(false);256 await Page.Touchscreen.TapAsync(x, y).ConfigureAwait(false);257 }258 /// <summary>259 /// Calls <c>focus</c> <see href="https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/focus"/> on the element.260 /// </summary>261 /// <returns>Task</returns>262 public Task FocusAsync() => EvaluateFunctionAsync("element => element.focus()");263 /// <summary>264 /// Focuses the element, and sends a <c>keydown</c>, <c>keypress</c>/<c>input</c>, and <c>keyup</c> event for each character in the text.265 /// </summary>266 /// <param name="text">A text to type into a focused element</param>267 /// <param name="options">type options</param>268 /// <remarks>269 /// To press a special key, like <c>Control</c> or <c>ArrowDown</c> use <see cref="ElementHandle.PressAsync(string, PressOptions)"/>270 /// </remarks>271 /// <example>272 /// <code>273 /// elementHandle.TypeAsync("#mytextarea", "Hello"); // Types instantly274 /// elementHandle.TypeAsync("#mytextarea", "World", new TypeOptions { Delay = 100 }); // Types slower, like a user275 /// </code>276 /// An example of typing into a text field and then submitting the form:277 /// <code>278 /// var elementHandle = await page.GetElementAsync("input");279 /// await elementHandle.TypeAsync("some text");280 /// await elementHandle.PressAsync("Enter");281 /// </code>282 /// </example>283 /// <returns>Task</returns>284 public async Task TypeAsync(string text, TypeOptions options = null)285 {286 await FocusAsync().ConfigureAwait(false);287 await Page.Keyboard.TypeAsync(text, options).ConfigureAwait(false);288 }289 /// <summary>290 /// Focuses the element, and then uses <see cref="Keyboard.DownAsync(string, DownOptions)"/> and <see cref="Keyboard.UpAsync(string)"/>.291 /// </summary>292 /// <param name="key">Name of key to press, such as <c>ArrowLeft</c>. See <see cref="KeyDefinitions"/> for a list of all key names.</param>293 /// <param name="options">press options</param>294 /// <remarks>295 /// If <c>key</c> is a single character and no modifier keys besides <c>Shift</c> are being held down, a <c>keypress</c>/<c>input</c> event will also be generated. The <see cref="DownOptions.Text"/> option can be specified to force an input event to be generated.296 /// </remarks>297 /// <returns></returns>298 public async Task PressAsync(string key, PressOptions options = null)299 {300 await FocusAsync().ConfigureAwait(false);301 await Page.Keyboard.PressAsync(key, options).ConfigureAwait(false);302 }303 /// <summary>304 /// The method runs <c>element.querySelector</c> within the page. If no element matches the selector, the return value resolve to <c>null</c>.305 /// </summary>306 /// <param name="selector">A selector to query element for</param>307 /// <returns>Task which resolves to <see cref="ElementHandle"/> pointing to the frame element</returns>308 public async Task<ElementHandle> QuerySelectorAsync(string selector)309 {310 var handle = await EvaluateFunctionHandleAsync(311 "(element, selector) => element.querySelector(selector)",312 selector).ConfigureAwait(false);313 if (handle is ElementHandle element)314 {315 return element;316 }317 await handle.DisposeAsync().ConfigureAwait(false);318 return null;319 }320 /// <summary>321 /// Runs <c>element.querySelectorAll</c> within the page. If no elements match the selector, the return value resolve to <see cref="Array.Empty{T}"/>.322 /// </summary>323 /// <param name="selector">A selector to query element for</param>324 /// <returns>Task which resolves to ElementHandles pointing to the frame elements</returns>325 public async Task<ElementHandle[]> QuerySelectorAllAsync(string selector)326 {327 var arrayHandle = await EvaluateFunctionHandleAsync(328 "(element, selector) => element.querySelectorAll(selector)",329 selector).ConfigureAwait(false);330 var properties = await arrayHandle.GetPropertiesAsync().ConfigureAwait(false);331 await arrayHandle.DisposeAsync().ConfigureAwait(false);332 return properties.Values.OfType<ElementHandle>().ToArray();333 }334 /// <summary>335 /// A utility function to be used with <see cref="PuppeteerHandleExtensions.EvaluateFunctionAsync{T}(Task{JSHandle}, string, object[])"/>336 /// </summary>337 /// <param name="selector">A selector to query element for</param>338 /// <returns>Task which resolves to a <see cref="JSHandle"/> of <c>document.querySelectorAll</c> result</returns>339 public Task<JSHandle> QuerySelectorAllHandleAsync(string selector)340 => ExecutionContext.EvaluateFunctionHandleAsync(341 "(element, selector) => Array.from(element.querySelectorAll(selector))", this, selector);342 /// <summary>343 /// Evaluates the XPath expression relative to the elementHandle. If there's no such element, the method will resolve to <c>null</c>.344 /// </summary>345 /// <param name="expression">Expression to evaluate <see href="https://developer.mozilla.org/en-US/docs/Web/API/Document/evaluate"/></param>346 /// <returns>Task which resolves to an array of <see cref="ElementHandle"/></returns>347 public async Task<ElementHandle[]> XPathAsync(string expression)348 {349 var arrayHandle = await ExecutionContext.EvaluateFunctionHandleAsync(350 @"(element, expression) => {351 const document = element.ownerDocument || element;352 const iterator = document.evaluate(expression, element, null, XPathResult.ORDERED_NODE_ITERATOR_TYPE);353 const array = [];354 let item;355 while ((item = iterator.iterateNext()))356 array.push(item);357 return array;358 }",359 this,360 expression).ConfigureAwait(false);361 var properties = await arrayHandle.GetPropertiesAsync().ConfigureAwait(false);362 await arrayHandle.DisposeAsync().ConfigureAwait(false);363 return properties.Values.OfType<ElementHandle>().ToArray();364 }365 /// <summary>366 /// This method returns the bounding box of the element (relative to the main frame),367 /// or null if the element is not visible.368 /// </summary>369 /// <returns>The BoundingBox task.</returns>370 public async Task<BoundingBox> BoundingBoxAsync()371 {372 var result = await GetBoxModelAsync().ConfigureAwait(false);373 if (result == null)374 {375 return null;376 }377 var quad = result.Model.Border;378 var x = new[] { quad[0], quad[2], quad[4], quad[6] }.Min();379 var y = new[] { quad[1], quad[3], quad[5], quad[7] }.Min();380 var width = new[] { quad[0], quad[2], quad[4], quad[6] }.Max() - x;381 var height = new[] { quad[1], quad[3], quad[5], quad[7] }.Max() - y;382 return new BoundingBox(x, y, width, height);383 }384 /// <summary>385 /// returns boxes of the element, or <c>null</c> if the element is not visible. Box points are sorted clock-wise.386 /// </summary>387 /// <returns>Task BoxModel task.</returns>388 public async Task<BoxModel> BoxModelAsync()389 {390 var result = await GetBoxModelAsync().ConfigureAwait(false);391 return result == null392 ? null393 : new BoxModel394 {395 Content = FromProtocolQuad(result.Model.Content),396 Padding = FromProtocolQuad(result.Model.Padding),397 Border = FromProtocolQuad(result.Model.Border),398 Margin = FromProtocolQuad(result.Model.Margin),399 Width = result.Model.Width,400 Height = result.Model.Height401 };402 }403 /// <summary>404 ///Content frame for element handles referencing iframe nodes, or null otherwise.405 /// </summary>406 /// <returns>Resolves to the content frame</returns>407 public async Task<Frame> ContentFrameAsync()408 {409 var nodeInfo = await Client.SendAsync<DomDescribeNodeResponse>("DOM.describeNode", new DomDescribeNodeRequest410 {411 ObjectId = RemoteObject.ObjectId412 }).ConfigureAwait(false);413 return string.IsNullOrEmpty(nodeInfo.Node.FrameId) ? null : await _frameManager.GetFrameAsync(nodeInfo.Node.FrameId).ConfigureAwait(false);414 }415 /// <summary>416 /// Evaluates if the element is visible in the current viewport.417 /// </summary>418 /// <returns>A task which resolves to true if the element is visible in the current viewport.</returns>419 public Task<bool> IsIntersectingViewportAsync()420 => ExecutionContext.EvaluateFunctionAsync<bool>(421 @"async element =>422 {423 const visibleRatio = await new Promise(resolve =>...

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ExecutionContext.cs

Source:ExecutionContext.cs Github

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...219 if (World == null)220 {221 throw new PuppeteerException("Cannot adopt handle without DOMWorld");222 }223 var nodeInfo = await _client.SendAsync<DomDescribeNodeResponse>("DOM.describeNode", new DomDescribeNodeRequest224 {225 ObjectId = elementHandle.RemoteObject.ObjectId226 }).ConfigureAwait(false);227 var obj = await _client.SendAsync<DomResolveNodeResponse>("DOM.resolveNode", new DomResolveNodeRequest228 {229 BackendNodeId = nodeInfo.Node.BackendNodeId,230 ExecutionContextId = _contextId231 }).ConfigureAwait(false);232 return CreateJSHandle(obj.Object) as ElementHandle;233 }234 }235}...

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Accessibility.cs

Source:Accessibility.cs Github

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...33 var nodes = response.Nodes;34 int? backendNodeId = null;35 if (options?.Root != null)36 {37 var node = await _client.SendAsync<DomDescribeNodeResponse>("DOM.describeNode", new DomDescribeNodeRequest38 {39 ObjectId = options.Root.RemoteObject.ObjectId40 }).ConfigureAwait(false);41 backendNodeId = node.Node.BackendNodeId;42 }43 var defaultRoot = AXNode.CreateTree(nodes);44 var needle = defaultRoot;45 if (backendNodeId.HasValue)46 {47 needle = defaultRoot.Find(node => node.Payload.BackendDOMNodeId == backendNodeId);48 if (needle == null)49 {50 return null;51 }...

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DomDescribeNodeRequest.cs

Source:DomDescribeNodeRequest.cs Github

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1namespace PuppeteerSharp.Messaging2{3 internal class DomDescribeNodeRequest4 {5 public string ObjectId { get; set; }6 }7}...

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DomDescribeNodeRequest

Using AI Code Generation

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1using PuppeteerSharp.Messaging;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 Args = new string[] { "--disable-extensions" }11 });12 var page = await browser.NewPageAsync();13 var dnr = new DomDescribeNodeRequest();14 dnr.NodeId = 1;15 dnr.Depth = 1;16 dnr.Pierce = true;17 var response = await page.GetClient().SendAsync(dnr);18 Console.WriteLine(response.MessageId);19 var response1 = await page.GetClient().SendAsync(dnr);20 Console.WriteLine(response1.MessageId);21 Console.WriteLine("Hello World!");22 }23 }24}25using PuppeteerSharp;26using System;27using System.Threading.Tasks;28{29 {30 static async Task Main(string[] args)31 {32 var browser = await Puppeteer.LaunchAsync(new LaunchOptions33 {34 Args = new string[] { "--disable-extensions" }35 });36 var page = await browser.NewPageAsync();37 var dnr = new DomDescribeNodeRequest();38 dnr.NodeId = 1;39 dnr.Depth = 1;40 dnr.Pierce = true;41 var response = await page.GetClient().SendAsync(dnr);42 Console.WriteLine(response.MessageId);43 var response1 = await page.GetClient().SendAsync(dnr);44 Console.WriteLine(response1.MessageId);45 Console.WriteLine("Hello World!");46 }47 }48}

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DomDescribeNodeRequest

Using AI Code Generation

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1using PuppeteerSharp.Messaging;2using System;3using System.Threading.Tasks;4{5 {6 static async Task Main(string[] args)7 {8 var browser = await Puppeteer.LaunchAsync(new LaunchOptions9 {10 });11 var page = await browser.NewPageAsync();12 var response = await page.GetNodeInfoAsync();13 Console.WriteLine(response);14 }15 }16}17using PuppeteerSharp;18using System;19using System.Threading.Tasks;20{21 {22 static async Task Main(string[] args)23 {24 var browser = await Puppeteer.LaunchAsync(new LaunchOptions25 {26 });27 var page = await browser.NewPageAsync();28 var response = await page.GetNodeInfoAsync();29 Console.WriteLine(response);30 }31 }32}

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DomDescribeNodeRequest

Using AI Code Generation

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1var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });2var page = await browser.NewPageAsync();3var document = await page.GetDocumentAsync();4var node = await document.QuerySelectorAsync("body");5var message = new DomDescribeNodeRequest(node);6var response = await message.SendAsync(page);7Console.WriteLine(response);8await browser.CloseAsync();9var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });10var page = await browser.NewPageAsync();11var document = await page.GetDocumentAsync();12var node = await document.QuerySelectorAsync("body");13var message = new DomDescribeNodeRequest(node);14var response = await message.SendAsync(page);15Console.WriteLine(response);16await browser.CloseAsync();17var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });18var page = await browser.NewPageAsync();19var document = await page.GetDocumentAsync();20var node = await document.QuerySelectorAsync("body");21var message = new DomDescribeNodeRequest(node);22var response = await message.SendAsync(page);23Console.WriteLine(response);24await browser.CloseAsync();25var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });26var page = await browser.NewPageAsync();27var document = await page.GetDocumentAsync();28var node = await document.QuerySelectorAsync("body");29var message = new DomDescribeNodeRequest(node);30var response = await message.SendAsync(page);31Console.WriteLine(response);32await browser.CloseAsync();33var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });34var page = await browser.NewPageAsync();35var document = await page.GetDocumentAsync();36var node = await document.QuerySelectorAsync("body");37var message = new DomDescribeNodeRequest(node);38var response = await message.SendAsync(page);39Console.WriteLine(response);40await browser.CloseAsync();41var browser = await Puppeteer.LaunchAsync(new LaunchOptions {

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DomDescribeNodeRequest

Using AI Code Generation

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1using PuppeteerSharp.Messaging;2using System;3using System.Collections.Generic;4using System.Linq;5using System.Text;6using System.Threading.Tasks;7{8 {9 public DomDescribeNodeRequest() { }10 public DomDescribeNodeRequest(int nodeId, int depth)11 {12 this.NodeId = nodeId;13 this.Depth = depth;14 }15 public int NodeId { get; set; }16 public int Depth { get; set; }17 }18}19using PuppeteerSharp.Messaging;20using System;21using System.Collections.Generic;22using System.Linq;23using System.Text;24using System.Threading.Tasks;25{26 {27 public DomDescribeNodeRequest() { }28 public DomDescribeNodeRequest(int nodeId, int depth)29 {30 this.NodeId = nodeId;31 this.Depth = depth;32 }33 public int NodeId { get; set; }34 public int Depth { get; set; }35 }36}

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DomDescribeNodeRequest

Using AI Code Generation

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1var request = new PuppeteerSharp.Messaging.DomDescribeNodeRequest();2request.NodeId = 1;3request.Depth = 1;4var response = await client.SendAsync(request);5var response = new PuppeteerSharp.Messaging.DomDescribeNodeResponse();6response.Node = new PuppeteerSharp.Messaging.Node();7response.Node.NodeId = 1;8response.Node.NodeType = 1;9response.Node.NodeName = "div";10response.Node.LocalName = "div";11response.Node.NodeValue = "";12response.Node.ChildNodeCount = 0;13response.Node.Children = new PuppeteerSharp.Messaging.Node[] { };14response.Node.Attributes = new PuppeteerSharp.Messaging.Attribute[] { };15response.Node.ShadowRoots = new PuppeteerSharp.Messaging.Node[] { };16response.Node.PseudoElements = new PuppeteerSharp.Messaging.Node[] { };17response.Node.LayoutNode = new PuppeteerSharp.Messaging.LayoutNode();18response.Node.LayoutNode.Bounds = new PuppeteerSharp.Messaging.Bounds();19response.Node.LayoutNode.Bounds.X = 0;20response.Node.LayoutNode.Bounds.Y = 0;21response.Node.LayoutNode.Bounds.Width = 100;22response.Node.LayoutNode.Bounds.Height = 100;23response.Node.LayoutNode.Bounds.Left = 0;24response.Node.LayoutNode.Bounds.Top = 0;25response.Node.LayoutNode.Bounds.Right = 0;26response.Node.LayoutNode.Bounds.Bottom = 0;27response.Node.LayoutNode.StyleIndex = 0;28response.Node.LayoutNode.LayoutText = "";29response.Node.LayoutNode.InlineTextNodes = new PuppeteerSharp.Messaging.InlineTextBox[] { };30response.Node.LayoutNode.StyleAttributes = new PuppeteerSharp.Messaging.StyleAttribute[] { };31response.Node.LayoutNode.LayoutText = "";32response.Node.LayoutNode.InlineTextNodes = new PuppeteerSharp.Messaging.InlineTextBox[] { };33response.Node.LayoutNode.StyleAttributes = new PuppeteerSharp.Messaging.StyleAttribute[] { };34response.Node.LayoutNode.LayoutText = "";35response.Node.LayoutNode.InlineTextNodes = new PuppeteerSharp.Messaging.InlineTextBox[] { };36response.Node.LayoutNode.StyleAttributes = new PuppeteerSharp.Messaging.StyleAttribute[] { };37response.Node.LayoutNode.LayoutText = "";38response.Node.LayoutNode.InlineTextNodes = new PuppeteerSharp.Messaging.InlineTextBox[] { };39response.Node.LayoutNode.StyleAttributes = new PuppeteerSharp.Messaging.StyleAttribute[] { };

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DomDescribeNodeRequest

Using AI Code Generation

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1var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});2var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});3var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});4var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});5var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});6var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});7var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});8var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});9var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});10var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});11var result = await client.SendAsync<DomDescribeNodeResponse>(new DomDescribeNodeRequest {ObjectId = objectId});

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DomDescribeNodeRequest

Using AI Code Generation

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1{2 {3 public async Task<DomDescribeNodeRequestResponse> DescribeNodeAsync()4 {5 var response = await Client.SendAsync("DOM.describeNode", new6 {7 });8 return response.ToObject<DomDescribeNodeRequestResponse>();9 }10 }11}12{13 {14 public async Task<DomDescribeNodeRequestResponse> DescribeNodeAsync()15 {16 var response = await Client.SendAsync("DOM.describeNode", new17 {18 });19 return response.ToObject<DomDescribeNodeRequestResponse>();20 }21 }22}23{24 {25 public async Task<DomDescribeNodeRequestResponse> DescribeNodeAsync()26 {27 var response = await Client.SendAsync("DOM.describeNode", new28 {29 });30 return response.ToObject<DomDescribeNodeRequestResponse>();31 }32 }33}34{35 {36 public async Task<DomDescribeNodeRequestResponse> DescribeNodeAsync()37 {38 var response = await Client.SendAsync("DOM.describeNode", new39 {40 });41 return response.ToObject<DomDescribeNodeRequestResponse>();42 }43 }44}

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