Automatic merge of T1.5.1-689-g9d41208f0 and 19 pull requests

- Pull request #570 at c59c788: Experimental glTF 2.0 support with PBR lighting
- Pull request #839 at d00beb9: First phase of https://blueprints.launchpad.net/or/+spec/additional-cruise-control-parameters
- Pull request #865 at 67014b7: Dispatcher window improvements
- Pull request #874 at f8dbeab: Dynamic brake controller refactoring
- Pull request #875 at 43bf33e: Bug fix for https://bugs.launchpad.net/or/+bug/2036346 Player train switching doesn't work with 3D cabs
- Pull request #876 at f92de76: docs: add source for documents previously on website to source Documentation folder
- Pull request #878 at 855d0e2: Implement Polach Adhesion
- Pull request #882 at 8c8c938: Blueprint/train car operations UI window
- Pull request #883 at edcc2dd: SwitchPanel disconnect/connect handling
- Pull request #885 at c81447b: feat: Add notifications to Menu
- Pull request #886 at 228f0f0: Scene viewer extension to TrackViewer
- Pull request #888 at d7daf62: docs: Document player application model
- Pull request #889 at 43341cf: No speed update
- Pull request #890 at 39a9fa4: Allow depart early
- Pull request #892 at 1f5ba4c: Signal Function OPP_SIG_ID_TRAINPATH
- Pull request #893 at bf8876b: Signal errors
- Pull request #894 at 794fddf: Correct Decrease Colour
- Pull request #896 at 5866028: First implementation of https://blueprints.launchpad.net/or/+spec/specific-sounds-for-ai-trains
- Pull request #897 at 64a29c8: feat: Improved system information collection

Author: openrails-bot

Source/RunActivity/Viewer3D/Cameras.cs

@@ -1278,18 +1278,18 @@ protected override void OnActivate(bool sameCamera)
             var carPosition = !(TrainCarViewer.CarPosition < trainCars.Count()) ? TrainCarViewer.CarPosition - 1 : TrainCarViewer.CarPosition;
             var isDownCameraOutsideFront = UserInput.IsDown(UserCommand.CameraOutsideFront);
             var isDownCameraOutsideRear = UserInput.IsDown(UserCommand.CameraOutsideRear);
-            var isVisibleTrainCarViewer = Viewer.TrainCarOperationsViewerWindow.Visible;            
+            var isVisibleTrainCarViewerOrWebpage = Viewer.TrainCarOperationsViewerWindow.Visible || (Viewer.TrainCarOperationsWebpage.TrainCarSelected);            
 
             if (attachedCar == null || attachedCar.Train != Viewer.SelectedTrain || carPosition != oldCarPosition || isDownCameraOutsideFront || isDownCameraOutsideRear)
             {
                 if (Front)
                 {
-                    if (!isVisibleTrainCarViewer && isDownCameraOutsideFront)
+                    if (!isVisibleTrainCarViewerOrWebpage && isDownCameraOutsideFront)
                     {
                     SetCameraCar(GetCameraCars().First());
                         oldCarPosition = 0;
                     }
-                    else if (isVisibleTrainCarViewer && carPosition >= 0)
+                    else if (isVisibleTrainCarViewerOrWebpage && carPosition >= 0)
                     {
                         SetCameraCar(trainCars[carPosition]);
                         oldCarPosition = carPosition;
@@ -1304,12 +1304,12 @@ protected override void OnActivate(bool sameCamera)
                 }
                 else
                 {
-                    if (!isVisibleTrainCarViewer && isDownCameraOutsideRear)
+                    if (!isVisibleTrainCarViewerOrWebpage && isDownCameraOutsideRear)
                     {
                         SetCameraCar(GetCameraCars().Last());
                         oldCarPosition = 0;
                     }
-                    else if (isVisibleTrainCarViewer && carPosition >= 0)
+                    else if (isVisibleTrainCarViewerOrWebpage && carPosition >= 0)
                     {
                         SetCameraCar(trainCars[carPosition]);
                         oldCarPosition = carPosition;

Source/RunActivity/Viewer3D/Viewer.cs

@@ -40,6 +40,7 @@
 using Orts.Viewer3D.Processes;
 using Orts.Viewer3D.RollingStock;
 using Orts.Viewer3D.WebServices.SwitchPanel;
+using Orts.Viewer3D.WebServices;
 using ORTS.Common;
 using ORTS.Common.Input;
 using ORTS.Scripting.Api;
@@ -95,6 +96,7 @@ public class Viewer
         public TrainOperationsWindow TrainOperationsWindow { get; private set; } // F9 window
         public TrainCarOperationsWindow TrainCarOperationsWindow { get; private set; } // Alt-F9 window
         public TrainCarOperationsViewerWindow TrainCarOperationsViewerWindow { get; private set; } // From TrainCarOperationWindow
+        public TrainCarOperationsWebpage TrainCarOperationsWebpage { get; set; }
         public CarOperationsWindow CarOperationsWindow { get; private set; } // F9 sub-window for car operations
         public TrainDpuWindow TrainDpuWindow { get; private set; } // Shift + F9 train distributed power window
         public NextStationWindow NextStationWindow { get; private set; } // F10 window
@@ -896,6 +898,20 @@ public void Update(RenderFrame frame, float elapsedRealTime)
             WindowManager?.PrepareFrame(frame, elapsedTime);
 
             SwitchPanelModule.SendSwitchPanelIfChanged();
+            
+            try
+            {
+                if ((PlayerTrain != null) && (TrainCarOperationsWebpage != null))
+                {
+                    TrainCarOperationsWebpage.handleReceiveAndSend();
+                }
+            }
+            catch (Exception error)
+            {
+                // some timing error causes an exception sometimes
+                // just silently ignore but log the exception
+                Trace.TraceWarning(error.ToString());
+            }
         }
 
         private void LoadDefectCarSound(TrainCar car, string filename)