public IResourceHandler Create(IBrowser browser, IFrame frame, string schemeName, IRequest request)
{
//Notes:
// - The 'host' portion is entirely ignored by this scheme handler.
// - If you register a ISchemeHandlerFactory for http/https schemes you should also specify a domain name
// - Avoid doing lots of processing in this method as it will affect performance.
// - Use the Default ResourceHandler implementation
var uri = new Uri(request.Url);
var fileName = uri.AbsolutePath;
//Load a file directly from Disk
if (fileName.EndsWith("CefSharp.Core.xml", StringComparison.OrdinalIgnoreCase))
{
//Convenient helper method to lookup the mimeType
var mimeType = Cef.GetMimeType("xml");
//Load a resource handler for CefSharp.Core.xml
//mimeType is optional and will default to text/html
return(ResourceHandler.FromFilePath("CefSharp.Core.xml", mimeType, autoDisposeStream: true));
}
if (fileName.EndsWith("Logo.png", StringComparison.OrdinalIgnoreCase))
{
//Convenient helper method to lookup the mimeType
var mimeType = Cef.GetMimeType("png");
//Load a resource handler for Logo.png
//mimeType is optional and will default to text/html
return(ResourceHandler.FromFilePath("..\\..\\..\\..\\CefSharp.WinForms.Example\\Resources\\chromium-256.png", mimeType, autoDisposeStream: true));
}
if (uri.Host == "cefsharp.com" && schemeName == "https" && (string.Equals(fileName, "/PostDataTest.html", StringComparison.OrdinalIgnoreCase) ||
string.Equals(fileName, "/PostDataAjaxTest.html", StringComparison.OrdinalIgnoreCase)))
{
return(new CefSharpSchemeHandler());
}
if (string.Equals(fileName, "/EmptyResponseFilterTest.html", StringComparison.OrdinalIgnoreCase))
{
return(ResourceHandler.FromString("", mimeType: ResourceHandler.DefaultMimeType));
}
string resource;
if (ResourceDictionary.TryGetValue(fileName, out resource) && !string.IsNullOrEmpty(resource))
{
var fileExtension = Path.GetExtension(fileName);
return(ResourceHandler.FromString(resource, includePreamble: true, mimeType: Cef.GetMimeType(fileExtension)));
}
return(null);
}
public BrowserTabView()
{
InitializeComponent();
DataContextChanged += OnDataContextChanged;
//browser.BrowserSettings.BackgroundColor = Cef.ColorSetARGB(0, 255, 255, 255);
//Please remove the comments below to use the Experimental WpfImeKeyboardHandler.
//browser.WpfKeyboardHandler = new WpfImeKeyboardHandler(browser);
//Please remove the comments below to specify the color of the CompositionUnderline.
//var transparent = Colors.Transparent;
//var black = Colors.Black;
//ImeHandler.ColorBKCOLOR = Cef.ColorSetARGB(transparent.A, transparent.R, transparent.G, transparent.B);
//ImeHandler.ColorUNDERLINE = Cef.ColorSetARGB(black.A, black.R, black.G, black.B);
browser.RequestHandler = new ExampleRequestHandler();
var bindingOptions = new BindingOptions()
{
Binder = BindingOptions.DefaultBinder.Binder,
MethodInterceptor = new MethodInterceptorLogger() // intercept .net methods calls from js and log it
};
//To use the ResolveObject below and bind an object with isAsync:false we must set CefSharpSettings.WcfEnabled = true before
//the browser is initialized.
CefSharpSettings.WcfEnabled = true;
//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;
//When JavascriptObjectRepository.Settings.LegacyBindingEnabled = true
//This event will be raised with ObjectName == Legacy so you can bind your
//legacy objects
if (e.ObjectName == "Legacy")
{
repo.Register("bound", new BoundObject(), isAsync: false, options: BindingOptions.DefaultBinder);
repo.Register("boundAsync", new AsyncBoundObject(), isAsync: true, options: bindingOptions);
}
else
{
if (e.ObjectName == "bound")
{
repo.Register("bound", new BoundObject(), isAsync: false, options: BindingOptions.DefaultBinder);
}
else if (e.ObjectName == "boundAsync")
{
repo.Register("boundAsync", new AsyncBoundObject(), isAsync: true, options: bindingOptions);
}
else if (e.ObjectName == "boundAsync2")
{
repo.Register("boundAsync2", new AsyncBoundObject(), isAsync: true, options: bindingOptions);
}
}
};
browser.JavascriptObjectRepository.ObjectBoundInJavascript += (sender, e) =>
{
var name = e.ObjectName;
Debug.WriteLine($"Object {e.ObjectName} was bound successfully.");
};
browser.DisplayHandler = new DisplayHandler();
//This LifeSpanHandler implementaion demos hosting a popup in a ChromiumWebBrowser
//instance, it's still considered Experimental
//browser.LifeSpanHandler = new ExperimentalLifespanHandler();
browser.MenuHandler = new MenuHandler();
browser.AccessibilityHandler = new AccessibilityHandler();
var downloadHandler = new DownloadHandler();
downloadHandler.OnBeforeDownloadFired += OnBeforeDownloadFired;
downloadHandler.OnDownloadUpdatedFired += OnDownloadUpdatedFired;
browser.DownloadHandler = downloadHandler;
browser.AudioHandler = new AudioHandler();
//Read an embedded bitmap into a memory stream then register it as a resource you can then load custom://cefsharp/images/beach.jpg
var beachImageStream = new MemoryStream();
CefSharp.Example.Properties.Resources.beach.Save(beachImageStream, System.Drawing.Imaging.ImageFormat.Jpeg);
browser.RegisterResourceHandler(CefExample.BaseUrl + "/images/beach.jpg", beachImageStream, Cef.GetMimeType("jpg"));
var dragHandler = new DragHandler();
dragHandler.RegionsChanged += OnDragHandlerRegionsChanged;
browser.DragHandler = dragHandler;
//browser.ResourceHandlerFactory = new InMemorySchemeAndResourceHandlerFactory();
//You can specify a custom RequestContext to share settings amount groups of ChromiumWebBrowsers
//Also this is now the only way to access OnBeforePluginLoad - need to implement IRequestContextHandler
//browser.RequestContext = new RequestContext(new RequestContextHandler());
//NOTE - This is very important for this example as the default page will not load otherwise
//browser.RequestContext.RegisterSchemeHandlerFactory(CefSharpSchemeHandlerFactory.SchemeName, null, new CefSharpSchemeHandlerFactory());
//browser.RequestContext.RegisterSchemeHandlerFactory("https", "cefsharp.example", new CefSharpSchemeHandlerFactory());
//You can start setting preferences on a RequestContext that you created straight away, still needs to be called on the CEF UI thread.
//Cef.UIThreadTaskFactory.StartNew(delegate
//{
// string errorMessage;
// //Use this to check that settings preferences are working in your code
// var success = browser.RequestContext.SetPreference("webkit.webprefs.minimum_font_size", 24, out errorMessage);
//});
browser.RenderProcessMessageHandler = new RenderProcessMessageHandler();
browser.LoadError += (sender, args) =>
{
// Don't display an error for downloaded files.
if (args.ErrorCode == CefErrorCode.Aborted)
{
return;
}
//Don't display an error for external protocols that we allow the OS to
//handle in OnProtocolExecution().
if (args.ErrorCode == CefErrorCode.UnknownUrlScheme && args.Frame.Url.StartsWith("mailto"))
{
return;
}
// Display a load error message.
var errorBody = string.Format("<html><body bgcolor=\"white\"><h2>Failed to load URL {0} with error {1} ({2}).</h2></body></html>",
args.FailedUrl, args.ErrorText, args.ErrorCode);
args.Frame.LoadHtml(errorBody, base64Encode: true);
};
CefExample.RegisterTestResources(browser);
browser.JavascriptMessageReceived += OnBrowserJavascriptMessageReceived;
}
public string GetMimeTypeFromExtension(string extension)
{
return(Cef.GetMimeType(extension));
}
public void MapFileExtensionToMimeTypeTheory(string fileExtension, string expectedMimeType)
{
var actualMimeType = Cef.GetMimeType(fileExtension);
Assert.Equal(expectedMimeType, actualMimeType);
}
public AcceptRangeResourceHandler(string fileName)
{
fileInfo = new FileInfo(fileName);
mimeType = Cef.GetMimeType(fileInfo.Extension);
}