Auto reload when server has been updated

New: Updating will reload UI on navigation

src/NzbDrone.Api/Extensions/Pipelines/CacheHeaderPipeline.cs

@@ -1,18 +1,11 @@
 using Nancy;
 using Nancy.Bootstrapper;
-using NzbDrone.Api.Frontend;
+using NzbDrone.Common.EnvironmentInfo;
 
 namespace NzbDrone.Api.Extensions.Pipelines
 {
-    public class CacheHeaderPipeline : IRegisterNancyPipeline
+    public class NzbDroneVersionPipeline : IRegisterNancyPipeline
     {
-        private readonly ICacheableSpecification _cacheableSpecification;
-
-        public CacheHeaderPipeline(ICacheableSpecification cacheableSpecification)
-        {
-            _cacheableSpecification = cacheableSpecification;
-        }
-
         public void Register(IPipelines pipelines)
         {
             pipelines.AfterRequest.AddItemToStartOfPipeline(Handle);
@@ -20,14 +13,7 @@ namespace NzbDrone.Api.Extensions.Pipelines
 
         private void Handle(NancyContext context)
         {
-            if (_cacheableSpecification.IsCacheable(context))
-            {
-                context.Response.Headers.EnableCache();
-            }
-            else
-            {
-                context.Response.Headers.DisableCache();
-            }
+            context.Response.Headers.Add("X-ApplicationVersion", BuildInfo.Version.ToString());
         }
     }
 }

src/NzbDrone.Api/Extensions/Pipelines/NzbDroneVersionPipeline.cs

@@ -0,0 +1,33 @@
+using Nancy;
+using Nancy.Bootstrapper;
+using NzbDrone.Api.Frontend;
+
+namespace NzbDrone.Api.Extensions.Pipelines
+{
+    public class CacheHeaderPipeline : IRegisterNancyPipeline
+    {
+        private readonly ICacheableSpecification _cacheableSpecification;
+
+        public CacheHeaderPipeline(ICacheableSpecification cacheableSpecification)
+        {
+            _cacheableSpecification = cacheableSpecification;
+        }
+
+        public void Register(IPipelines pipelines)
+        {
+            pipelines.AfterRequest.AddItemToStartOfPipeline(Handle);
+        }
+
+        private void Handle(NancyContext context)
+        {
+            if (_cacheableSpecification.IsCacheable(context))
+            {
+                context.Response.Headers.EnableCache();
+            }
+            else
+            {
+                context.Response.Headers.DisableCache();
+            }
+        }
+    }
+}

src/NzbDrone.Api/NzbDrone.Api.csproj

@@ -122,6 +122,7 @@
     <Compile Include="Episodes\RenameEpisodeModule.cs" />
     <Compile Include="Episodes\RenameEpisodeResource.cs" />
     <Compile Include="Extensions\Pipelines\CacheHeaderPipeline.cs" />
+    <Compile Include="Extensions\Pipelines\NzbDroneVersionPipeline.cs" />
     <Compile Include="Extensions\Pipelines\GZipPipeline.cs" />
     <Compile Include="Extensions\Pipelines\IfModifiedPipeline.cs" />
     <Compile Include="Extensions\Pipelines\IRegisterNancyPipeline.cs" />

src/NzbDrone.Host/NzbDrone.Host.csproj

@@ -101,6 +101,7 @@
     <Compile Include="AccessControl\FirewallAdapter.cs" />
     <Compile Include="AccessControl\UrlAclAdapter.cs" />
     <Compile Include="BrowserService.cs" />
+    <Compile Include="Owin\MiddleWare\NzbDroneVersionMiddleWare.cs" />
     <Compile Include="SpinService.cs" />
     <Compile Include="SingleInstancePolicy.cs" />
     <Compile Include="IUserAlert.cs" />

src/NzbDrone.Host/Owin/MiddleWare/NancyMiddleWare.cs

@@ -13,7 +13,7 @@ namespace NzbDrone.Host.Owin.MiddleWare
             _nancyBootstrapper = nancyBootstrapper;
         }
 
-        public int Order { get { return 1; } }
+        public int Order { get { return 2; } }
 
         public void Attach(IAppBuilder appBuilder)
         {

src/NzbDrone.Host/Owin/MiddleWare/NzbDroneVersionMiddleWare.cs

@@ -0,0 +1,32 @@
+using System.Threading.Tasks;
+using Microsoft.Owin;
+using NzbDrone.Common.EnvironmentInfo;
+using Owin;
+
+namespace NzbDrone.Host.Owin.MiddleWare
+{
+    public class NzbDroneVersionMiddleWare : IOwinMiddleWare
+    {
+        public int Order { get { return 0; } }
+
+        public void Attach(IAppBuilder appBuilder)
+        {
+            appBuilder.Use(typeof (AddApplicationVersionHeader));
+        }
+    }
+
+    public class AddApplicationVersionHeader : OwinMiddleware
+    {
+        public AddApplicationVersionHeader(OwinMiddleware next)
+            : base(next)
+        {
+        }
+
+        public override Task Invoke(OwinRequest request, OwinResponse response)
+        {
+            response.AddHeader("X-ApplicationVersion", BuildInfo.Version.ToString());
+
+            return Next.Invoke(request, response);
+        }
+    }
+}

src/NzbDrone.Host/Owin/MiddleWare/SignalRMiddleWare.cs

@@ -8,7 +8,7 @@ namespace NzbDrone.Host.Owin.MiddleWare
 {
     public class SignalRMiddleWare : IOwinMiddleWare
     {
-        public int Order { get { return 0; } }
+        public int Order { get { return 1; } }
 
         public SignalRMiddleWare(IContainer container)
         {

src/UI/Mixins/jquery.ajax.js

@@ -28,6 +28,29 @@ define(
                 xhr.headers['X-Api-Key'] = window.NzbDrone.ApiKey;
             }
 
-            return original.apply(this, arguments);
+            return original.apply(this, arguments).done(function (response, status, xhr){
+                var version = xhr.getResponseHeader('X-ApplicationVersion');
+
+                if (!window.NzbDrone || !window.NzbDrone.Version) {
+                    return;
+                }
+
+                if (version !== window.NzbDrone.Version) {
+                    var vent = require('vent');
+                    var messenger = require('Shared/Messenger');
+
+                    if (!vent || !messenger) {
+                        return;
+                    }
+
+                    messenger.show({
+                        message   : 'NzbDrone has been updated',
+                        hideAfter : 0,
+                        id        : 'droneUpdated'
+                    });
+
+                    vent.trigger(vent.Events.ServerUpdated);
+                }
+            });
         };
     });

src/UI/Series/SeriesController.js

@@ -19,7 +19,7 @@ define(
 
             series: function () {
                 this.setTitle('NzbDrone');
-                AppLayout.mainRegion.show(new SeriesIndexLayout());
+                this.showMainRegion(new SeriesIndexLayout());
             },
 
             seriesDetails: function (query) {
@@ -28,7 +28,7 @@ define(
                 if (series.length !== 0) {
                     var targetSeries = series[0];
                     this.setTitle(targetSeries.get('title'));
-                    AppLayout.mainRegion.show(new SeriesDetailsLayout({ model: targetSeries }));
+                    this.showMainRegion(new SeriesDetailsLayout({ model: targetSeries }));
                 }
                 else {
                     this.showNotFound();

src/UI/Shared/SignalRBroadcaster.js

@@ -50,15 +50,6 @@ define(
 
                 this.signalRconnection.reconnected(function() {
                     tryingToReconnect = false;
-
-                    var currentVersion = StatusModel.get('version');
-
-                    var promise = StatusModel.fetch();
-                    promise.done(function () {
-                        if (StatusModel.get('version') !== currentVersion) {
-                            vent.trigger(vent.Events.ServerUpdated);
-                        }
-                    });
                 });
 
                 this.signalRconnection.disconnected(function () {