WPF Example - Add LoadExtension Test

Uses the set_page_color that CEF uses for testing

Author: amaitland

CefSharp.Wpf.Example/MainWindow.xaml

@@ -48,6 +48,7 @@
                 <MenuItem Header="_Async JSB Task Tests" Command="controls:CefSharpCommands.CustomCommand" CommandParameter="AsyncJsbTaskTests" />
                 <MenuItem Header="_Resize Hack Tests" Command="controls:CefSharpCommands.CustomCommand" CommandParameter="ResizeHackTests" />
                 <MenuItem Header="_Google Service Worker Demo" Command="controls:CefSharpCommands.OpenTabCommand" CommandParameter="https://googlechrome.github.io/samples/service-worker/basic/"/>
+                <MenuItem Header="Load Example Extension" Command="controls:CefSharpCommands.CustomCommand" CommandParameter="LoadExtension"/>
             </MenuItem>
         </Menu>
         <controls:NonReloadingTabControl x:Name="TabControl"

CefSharp.Wpf.Example/MainWindow.xaml.cs

@@ -5,11 +5,13 @@
 using System;
 using System.Collections.Generic;
 using System.Collections.ObjectModel;
+using System.IO;
 using System.Threading;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Input;
 using CefSharp.Example;
+using CefSharp.Example.Handlers;
 using CefSharp.Wpf.Example.Controls;
 using CefSharp.Wpf.Example.ViewModels;
 using Microsoft.Win32;
@@ -146,6 +148,54 @@ private void CustomCommandBinding(object sender, ExecutedRoutedEventArgs e)
                         });
                     }
                 }
+                if (param == "LoadExtension")
+                {
+                    var browser = browserViewModel.WebBrowser;
+                    //The sample extension only works for http(s) schemes
+                    if (browser.Address.StartsWith("http"))
+                    {
+                        var requestContext = browser.GetBrowserHost().RequestContext;
+
+                        var dir = Path.Combine(AppContext.BaseDirectory, @"..\..\..\..\CefSharp.Example\Extensions");
+                        dir = Path.GetFullPath(dir);
+                        if (!Directory.Exists(dir))
+                        {
+                            throw new DirectoryNotFoundException("Unable to locate example extensions folder - " + dir);
+                        }
+
+                        var extensionHandler = new ExtensionHandler
+                        {
+                            LoadExtensionPopup = (url) =>
+                            {
+                                Dispatcher.BeginInvoke(new Action(() =>
+                                {
+                                    var extensionWindow = new Window();
+
+                                    var extensionBrowser = new ChromiumWebBrowser(url);
+                                    //extensionBrowser.IsBrowserInitializedChanged += (s, args) =>
+                                    //{
+                                    //    extensionBrowser.ShowDevTools();
+                                    //};
+
+                                    extensionWindow.Content = extensionBrowser;
+
+                                    extensionWindow.Show();
+                                }));
+                            },
+                            GetActiveBrowser = (extension, isIncognito) =>
+                            {
+                                //Return the active browser for which the extension will act upon
+                                return browser.GetBrowser();
+                            }
+                        };
+
+                        requestContext.LoadExtensionsFromDirectory(dir, extensionHandler);
+                    }
+                    else
+                    {
+                        MessageBox.Show("The sample extension only works with http(s) schemes, please load a different website and try again", "Unable to load Extension");
+                    }
+                }
 
                 if (param == "ToggleSidebar")
                 {