Added DefaultFocusHandler with SelectNextControl behaviour.

Author: jankurianski

CefSharp.WinForms.Example/BrowserTabUserControl.cs

@@ -24,7 +24,7 @@ public BrowserTabUserControl(string url)
             Browser = browser;
 
             browser.MenuHandler = new MenuHandler();
-            browser.FocusHandler = new FocusHandler(browser, urlTextBox);
+            //browser.FocusHandler = new FocusHandler(browser, urlTextBox);
             browser.NavStateChanged += OnBrowserNavStateChanged;
             browser.ConsoleMessage += OnBrowserConsoleMessage;
             browser.TitleChanged += OnBrowserTitleChanged;

CefSharp.WinForms/ChromiumWebBrowser.cs

@@ -55,6 +55,8 @@ public ChromiumWebBrowser(string address)
             Address = address;
 
             Dock = DockStyle.Fill;
+
+            FocusHandler = new DefaultFocusHandler(this);
         }
 
         protected override void Dispose(bool disposing)
@@ -354,5 +356,31 @@ private void ResizeBrowser()
                 managedCefBrowserAdapter.Resize(Width, Height);
             }
         }
+
+        #region DefaultFocusHandler
+        private class DefaultFocusHandler : IFocusHandler
+        {
+            private ChromiumWebBrowser browser;
+
+            public DefaultFocusHandler(ChromiumWebBrowser browser)
+            {
+                this.browser = browser;
+            }
+
+            public void OnGotFocus()
+            {
+            }
+
+            public bool OnSetFocus(CefFocusSource source)
+            {
+                return false;
+            }
+
+            public void OnTakeFocus(bool next)
+            {
+                browser.BeginInvoke(new MethodInvoker(() => browser.SelectNextControl(browser, next, true, true, true)));
+            }
+        }
+        #endregion
     }
 }