Created Next button functions

Wabbajack/AppState.cs

@@ -198,6 +198,47 @@ namespace Wabbajack
             }
         }
 
+        public ICommand SlideShowNextItem
+        {
+            get
+            {
+                return new LambdaCommand(() => true, () => NextSlideshowItem());
+            }
+        }
+        private void NextSlideshowItem()
+        {
+            var idx = _random.Next(0, SlideShowElements.Count);
+
+            try
+            {
+                var element = SlideShowElements[idx];
+                if (!element.Adult || (element.Adult && SplashShowNSFW))
+                {
+                    var data = new MemoryStream();
+                    using (var stream = new HttpClient().GetStreamSync(element.ImageURL))
+                        stream.CopyTo(data);
+                    data.Seek(0, SeekOrigin.Begin);
+
+
+                    dispatcher.Invoke(() =>
+                    {
+                        var bitmap = new BitmapImage();
+                        bitmap.BeginInit();
+                        bitmap.CacheOption = BitmapCacheOption.OnLoad;
+                        bitmap.StreamSource = data;
+                        bitmap.EndInit();
+
+                        SplashScreenImage = bitmap;
+                        SplashScreenModName = element.ModName;
+                        SplashScreenAuthorName = element.AuthorName;
+                        SplashScreenSummary = element.ModSummary;
+                        _nexusSiteURL = element.ModURL;
+                    });
+                }
+            }
+            catch (Exception e) { }
+        }
+
         public string _nexusSiteURL = null;
 
         private void VisitNexusSite()