Merge pull request #109 from SpoinkyNL/issue93

Issue93

Artemis/Artemis/Managers/DeviceManager.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading;
 using Artemis.DeviceProviders;
 using Artemis.Events;
 using Artemis.Services;
@@ -93,10 +94,31 @@ namespace Artemis.Managers
 
                 if (!wasNull)
                     ReleaseActiveKeyboard();
-
+                var asynchEnable = false;
-                // Disable everything if there's no active keyboard found
+                if (keyboardProvider.CanEnable())
-                if (!keyboardProvider.CanEnable())
                 {
+                    FinishEnableKeyboard(keyboardProvider, oldKeyboard);
+                }
+                else
+                {
+                    for (var i = 1; i <= 10; i++)
+                    {
+                        var thread = new Thread(() =>
+                        {
+                            Thread.Sleep(500*i);
+                            asynchEnable = keyboardProvider.CanEnable();
+                        });
+
+                        _logger.Warn("Failed enabling keyboard: {0}, re-attempt {1} of 10", keyboardProvider.Name, i);
+
+                        thread.Start();
+                        if (asynchEnable)
+                            break;
+                    }
+
+                    if (!asynchEnable)
+                    {
+                        // Disable everything if there's no active keyboard found
                         DialogService.ShowErrorMessageBox(keyboardProvider.CantEnableText);
                         ActiveKeyboard = null;
                         General.Default.LastKeyboard = null;
@@ -105,7 +127,13 @@ namespace Artemis.Managers
                         ChangingKeyboard = false;
                         return;
                     }
+                    FinishEnableKeyboard(keyboardProvider, oldKeyboard);
+                }
+            }
+        }
 
+        private void FinishEnableKeyboard(KeyboardProvider keyboardProvider, KeyboardProvider oldKeyboard)
+        {
             ActiveKeyboard = keyboardProvider;
             ActiveKeyboard.Enable();
 
@@ -118,7 +146,6 @@ namespace Artemis.Managers
             _events.PublishOnUIThread(new ActiveKeyboardChanged(oldKeyboard, ActiveKeyboard));
             _logger.Debug("Enabled keyboard: {0}", keyboardProvider.Name);
         }
-        }
 
         private void EnableUsableDevices()
         {