2020-06-26 16:28:18 +10:00
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// Copyright © 2020 The CefSharp Authors. All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
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2020-06-30 14:48:35 +10:00
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using System.Collections.Generic;
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using System.Threading.Tasks;
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2020-09-21 19:32:25 +10:00
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using CefSharp.DevTools;
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2020-06-30 14:48:35 +10:00
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using CefSharp.Internals;
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2020-06-26 16:28:18 +10:00
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using CefSharp.Web;
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namespace CefSharp
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{
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/// <summary>
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/// Extensions for accessing DevTools through <see cref="IBrowserHost"/>
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/// </summary>
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public static class DevToolsExtensions
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{
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/// <summary>
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/// Execute a method call over the DevTools protocol. This is a more structured
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/// version of SendDevToolsMessage.
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/// See the DevTools protocol documentation at https://chromedevtools.github.io/devtools-protocol/ for details
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2021-02-25 20:24:26 +10:00
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/// of supported methods and the expected <paramref name="parameters"/> JSON message format.
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/// See the SendDevToolsMessage documentation for additional usage information.
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/// </summary>
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/// <param name="browserHost">browser host</param>
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/// <param name="messageId">is an incremental number that uniquely identifies the message (pass 0 to have the next number assigned
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/// automatically based on previous values)</param>
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/// <param name="method">is the method name</param>
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/// <param name="parameters">are the method parameters represented as a <see cref="JsonString"/>,
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/// which may be empty.</param>
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/// <returns>return the assigned message Id if called on the CEF UI thread and the message was
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/// successfully submitted for validation, otherwise 0</returns>
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public static int ExecuteDevToolsMethod(this IBrowserHost browserHost, int messageId, string method, JsonString parameters)
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{
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WebBrowserExtensions.ThrowExceptionIfBrowserHostNull(browserHost);
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var json = parameters == null ? null : parameters.Json;
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return browserHost.ExecuteDevToolsMethod(messageId, method, json);
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}
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2020-06-30 14:48:35 +10:00
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/// <summary>
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/// Execute a method call over the DevTools protocol. This is a more structured
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/// version of SendDevToolsMessage. <see cref="ExecuteDevToolsMethod"/> can only be called on the
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/// CEF UI Thread, this method can be called on any thread.
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/// See the DevTools protocol documentation at https://chromedevtools.github.io/devtools-protocol/ for details
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/// of supported methods and the expected <paramref name="parameters"/> dictionary contents.
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/// See the SendDevToolsMessage documentation for additional usage information.
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/// </summary>
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/// <param name="browser">the browser instance</param>
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/// <param name="messageId">is an incremental number that uniquely identifies the message (pass 0 to have the next number assigned
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/// automatically based on previous values)</param>
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/// <param name="method">is the method name</param>
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/// <param name="parameters">are the method parameters represented as a dictionary,
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/// which may be empty.</param>
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/// <returns>return a Task that can be awaited to obtain the assigned message Id. If the message was
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/// unsuccessfully submitted for validation, this value will be 0.</returns>
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public static Task<int> ExecuteDevToolsMethodAsync(this IBrowser browser, int messageId, string method, IDictionary<string, object> parameters = null)
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{
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WebBrowserExtensions.ThrowExceptionIfBrowserNull(browser);
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var browserHost = browser.GetHost();
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WebBrowserExtensions.ThrowExceptionIfBrowserHostNull(browserHost);
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if (CefThread.CurrentlyOnUiThread)
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{
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return Task.FromResult(browserHost.ExecuteDevToolsMethod(messageId, method, parameters));
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}
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if (CefThread.CanExecuteOnUiThread)
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{
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return CefThread.ExecuteOnUiThread(() =>
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{
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return browserHost.ExecuteDevToolsMethod(messageId, method, parameters);
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});
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}
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//CEF returns 0 to signify failure, we'll do the same.
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return Task.FromResult(0);
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}
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/// <summary>
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/// Execute a method call over the DevTools protocol. This is a more structured
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/// version of SendDevToolsMessage. <see cref="ExecuteDevToolsMethod"/> can only be called on the
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/// CEF UI Thread, this method can be called on any thread.
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/// See the DevTools protocol documentation at https://chromedevtools.github.io/devtools-protocol/ for details
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/// of supported methods and the expected <paramref name="parameters"/> dictionary contents.
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/// See the SendDevToolsMessage documentation for additional usage information.
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/// </summary>
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/// <param name="chromiumWebBrowser">the ChromiumWebBrowser instance</param>
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/// <param name="messageId">is an incremental number that uniquely identifies the message (pass 0 to have the next number assigned
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/// automatically based on previous values)</param>
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/// <param name="method">is the method name</param>
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/// <param name="parameters">are the method parameters represented as a dictionary,
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/// which may be empty.</param>
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/// <returns>return a Task that can be awaited to obtain the assigned message Id. If the message was
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/// unsuccessfully submitted for validation, this value will be 0.</returns>
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2022-01-05 10:09:56 +10:00
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public static Task<int> ExecuteDevToolsMethodAsync(this IChromiumWebBrowserBase chromiumWebBrowser, int messageId, string method, IDictionary<string, object> parameters = null)
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{
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var browser = chromiumWebBrowser.BrowserCore;
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return browser.ExecuteDevToolsMethodAsync(messageId, method, parameters);
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}
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2020-09-21 19:32:25 +10:00
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/// <summary>
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/// Gets a new Instance of the DevTools client for the chromiumWebBrowser
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/// instance.
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/// </summary>
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/// <param name="chromiumWebBrowser">the chromiumWebBrowser instance</param>
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/// <returns>DevToolsClient</returns>
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public static DevToolsClient GetDevToolsClient(this IChromiumWebBrowserBase chromiumWebBrowser)
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{
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var browser = chromiumWebBrowser.BrowserCore;
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return browser.GetDevToolsClient();
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}
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/// <summary>
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/// Gets a new Instance of the DevTools client
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/// </summary>
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/// <param name="browser">the IBrowser instance</param>
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/// <returns>DevToolsClient</returns>
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public static DevToolsClient GetDevToolsClient(this IBrowser browser)
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{
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WebBrowserExtensions.ThrowExceptionIfBrowserNull(browser);
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2020-09-21 19:32:25 +10:00
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var browserHost = browser.GetHost();
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WebBrowserExtensions.ThrowExceptionIfBrowserHostNull(browserHost);
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var devToolsClient = new DevToolsClient(browser);
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var observerRegistration = browserHost.AddDevToolsMessageObserver(devToolsClient);
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devToolsClient.SetDevToolsObserverRegistration(observerRegistration);
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return devToolsClient;
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}
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2022-01-05 10:09:56 +10:00
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/// <summary>
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/// Set the Document Content for the Main Frame using DevTools Protocol.
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/// </summary>
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/// <param name="chromiumWebBrowser">ChromiumWebBrowser instance</param>
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/// <param name="html">html</param>
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/// <returns>Task that can be awaited to determine if the content was successfully updated.</returns>
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public static Task<bool> SetMainFrameDocumentContentAsync(this IChromiumWebBrowserBase chromiumWebBrowser, string html)
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{
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var browser = chromiumWebBrowser.BrowserCore;
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return browser.SetMainFrameDocumentContentAsync(html);
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}
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/// <summary>
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/// Set the Document Content for the Main Frame using DevTools Protocol.
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/// </summary>
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/// <param name="browser">the browser instance</param>
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/// <param name="html">html</param>
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/// <returns>Task that can be awaited to determine if the content was successfully updated.</returns>
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public static async Task<bool> SetMainFrameDocumentContentAsync(this IBrowser browser, string html)
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{
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WebBrowserExtensions.ThrowExceptionIfBrowserNull(browser);
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using (var client = browser.GetDevToolsClient())
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{
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var response = await client.Page.GetFrameTreeAsync().ConfigureAwait(false);
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var frames = response.FrameTree;
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var mainFrame = frames.Frame;
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var setContentResponse = await client.Page.SetDocumentContentAsync(mainFrame.Id, html).ConfigureAwait(false);
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return setContentResponse.Success;
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}
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}
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2020-06-26 16:28:18 +10:00
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}
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}
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