public BrowserTabUserControl(ChromiumHostControl chromiumHostControl) { InitializeComponent(); Browser = chromiumHostControl; browserPanel.Controls.Add(chromiumHostControl); chromiumHostControl.LoadingStateChanged += OnBrowserLoadingStateChanged; chromiumHostControl.ConsoleMessage += OnBrowserConsoleMessage; chromiumHostControl.TitleChanged += OnBrowserTitleChanged; chromiumHostControl.AddressChanged += OnBrowserAddressChanged; chromiumHostControl.StatusMessage += OnBrowserStatusMessage; chromiumHostControl.IsBrowserInitializedChanged += OnIsBrowserInitializedChanged; chromiumHostControl.LoadError += OnLoadError; }
public BrowserTabUserControl(Action <string, int?> openNewTab, string url, bool multiThreadedMessageLoopEnabled) { InitializeComponent(); var browser = new ChromiumWebBrowser(url) { Dock = DockStyle.Fill }; browserPanel.Controls.Add(browser); Browser = browser; browser.MenuHandler = new MenuHandler(); browser.RequestHandler = new WinFormsRequestHandler(openNewTab); browser.JsDialogHandler = new JsDialogHandler(); browser.DownloadHandler = new DownloadHandler(); browser.AudioHandler = new CefSharp.Handler.AudioHandler(); browser.FrameHandler = new CefSharp.Handler.FrameHandler(); if (multiThreadedMessageLoopEnabled) { browser.KeyboardHandler = new KeyboardHandler(); } //The CefSharp.WinForms.Handler.LifeSpanHandler implementation //allows for Popups to be hosted in Controls/Tabs //This example also demonstrates docking DevTools in a SplitPanel browser.LifeSpanHandler = CefSharp.WinForms.Handler.LifeSpanHandler .Create() .OnBeforePopupCreated((chromiumWebBrowser, b, frame, targetUrl, targetFrameName, targetDisposition, userGesture, browserSettings) => { //Can cancel opening popup based on Url if required. if (targetUrl?.StartsWith(CefExample.BaseUrl + "/cancelme.html") == true) { return(PopupCreation.Cancel); } return(PopupCreation.Continue); }) .OnPopupCreated((ctrl, targetUrl) => { //Don't try using ctrl.FindForm() here as //the control hasn't been attached to a parent yet. if (FindForm() is BrowserForm owner) { owner.AddTab(ctrl, targetUrl); } }) .OnPopupDestroyed((ctrl, popupBrowser) => { //If we docked DevTools (hosted it ourselves rather than the default popup) //Used when the BrowserTabUserControl.ShowDevToolsDocked method is called if (popupBrowser.MainFrame.Url.Equals("devtools://devtools/devtools_app.html")) { //Dispose of the parent control we used to host DevTools, this will release the DevTools window handle //and the ILifeSpanHandler.OnBeforeClose() will be call after. ctrl.Dispose(); } else { //If browser is disposed or the handle has been released then we don't //need to remove the tab in this example. The user likely used the // File -> Close Tab menu option which also calls BrowserForm.RemoveTab if (!ctrl.IsDisposed && ctrl.IsHandleCreated) { if (ctrl.FindForm() is BrowserForm owner) { owner.RemoveTab(ctrl); } ctrl.Dispose(); } } }) .OnPopupBrowserCreated((ctrl, popupBrowser) => { //The host control maybe null if the popup was hosted in a native Window e.g. Devtools by default if (ctrl == null) { return; } //You can access all the core browser functionality via IBrowser //frames, browwser host, etc. var isPopup = popupBrowser.IsPopup; }) .Build(); browser.LoadingStateChanged += OnBrowserLoadingStateChanged; browser.ConsoleMessage += OnBrowserConsoleMessage; browser.TitleChanged += OnBrowserTitleChanged; browser.AddressChanged += OnBrowserAddressChanged; browser.StatusMessage += OnBrowserStatusMessage; browser.IsBrowserInitializedChanged += OnIsBrowserInitializedChanged; browser.LoadError += OnLoadError; #if NETCOREAPP browser.JavascriptObjectRepository.Register("boundAsync", new AsyncBoundObject(), options: BindingOptions.DefaultBinder); #else browser.JavascriptObjectRepository.Register("bound", new BoundObject(), isAsync: false, options: BindingOptions.DefaultBinder); browser.JavascriptObjectRepository.Register("boundAsync", new AsyncBoundObject(), isAsync: true, options: BindingOptions.DefaultBinder); #endif //If you call CefSharp.BindObjectAsync in javascript and pass in the name of an object which is not yet //bound, then ResolveObject will be called, you can then register it browser.JavascriptObjectRepository.ResolveObject += (sender, e) => { var repo = e.ObjectRepository; if (e.ObjectName == "boundAsync2") { #if NETCOREAPP repo.Register("boundAsync2", new AsyncBoundObject(), options: BindingOptions.DefaultBinder); #else repo.Register("boundAsync2", new AsyncBoundObject(), isAsync: true, options: BindingOptions.DefaultBinder); #endif } }; browser.RenderProcessMessageHandler = new RenderProcessMessageHandler(); browser.DisplayHandler = new WinFormsDisplayHandler(); //browser.MouseDown += OnBrowserMouseClick; this.multiThreadedMessageLoopEnabled = multiThreadedMessageLoopEnabled; var eventObject = new ScriptedMethodsBoundObject(); eventObject.EventArrived += OnJavascriptEventArrived; // Use the default of camelCaseJavascriptNames // .Net methods starting with a capitol will be translated to starting with a lower case letter when called from js #if !NETCOREAPP browser.JavascriptObjectRepository.Register("boundEvent", eventObject, isAsync: false, options: BindingOptions.DefaultBinder); #endif CefExample.RegisterTestResources(browser); var version = string.Format("Chromium: {0}, CEF: {1}, CefSharp: {2}", Cef.ChromiumVersion, Cef.CefVersion, Cef.CefSharpVersion); //Set label directly, don't use DisplayOutput as call would be a NOOP (no valid handle yet). outputLabel.Text = version; }