add support for Auto Prerendering

Oqtane.Client/Modules/Admin/Site/Index.razor

@@ -340,7 +340,7 @@
                         <Label Class="col-sm-3" For="prerender" HelpText="Specifies if interactive components should prerender their output" ResourceKey="Prerender">Prerender? </Label>
                         <div class="col-sm-9">
                             <select id="prerender" class="form-select" @bind="@_prerender" required>
-                                <option value="True">@SharedLocalizer["Yes"]</option>
+                                <option value="True">@SharedLocalizer["Auto"]</option>
                                 <option value="False">@SharedLocalizer["No"]</option>
                             </select>
                         </div>

Oqtane.Client/Modules/ModuleBase.cs

@@ -52,7 +52,7 @@ namespace Oqtane.Modules
 
         public virtual string RenderMode { get { return RenderModes.Interactive; } } // interactive by default
 
-        public virtual bool? Prerender { get { return null; } } // prerender at server by default
+        public virtual bool? Prerender { get { return null; } } // allows the Site Prerender property to be overridden
 
         // url parameters
         public virtual string UrlParametersTemplate { get; set; }

Oqtane.Client/Resources/Modules/Admin/Site/Index.resx

@@ -277,7 +277,7 @@
     <value>UI Component Settings</value>
   </data>
   <data name="Prerender.HelpText" xml:space="preserve">
-    <value>Specifies if interactive components should prerender their output</value>
+    <value>Specifies if interactive components should prerender their output. The default is Auto which determines if a component should be prerendered at runtime based on the environment.</value>
   </data>
   <data name="Prerender.Text" xml:space="preserve">
     <value>Prerender? </value>

Oqtane.Client/Resources/SharedResources.resx

@@ -453,4 +453,7 @@
   <data name="RenderModeStatic" xml:space="preserve">
     <value>Static</value>
   </data>
+  <data name="Auto" xml:space="preserve">
+    <value>Auto</value>
+  </data>
 </root>

Oqtane.Client/Themes/Controls/Container/ModuleActions.razor

@@ -10,6 +10,6 @@
     }
     else
     {
-        <ModuleActionsInteractive PageState="@PageState" ModuleState="@ModuleState" @rendermode="@InteractiveRenderMode.GetInteractiveRenderMode(PageState.Site.Runtime, PageState.Site.Prerender)" />
+        <ModuleActionsInteractive PageState="@PageState" ModuleState="@ModuleState" @rendermode="@InteractiveRenderMode.GetInteractiveRenderMode(PageState.Site.Runtime, false)" />
     }
 }

Oqtane.Client/Themes/Controls/Theme/ControlPanel.razor

@@ -36,7 +36,7 @@
     }
     else
     {
-        <ControlPanelInteractive PageState="@PageState" SiteState="@SiteState" ButtonClass="@ButtonClass" ContainerClass="@ContainerClass" HeaderClass="@HeaderClass" BodyClass="@BodyClass" ShowLanguageSwitcher="@ShowLanguageSwitcher" LanguageDropdownAlignment="@LanguageDropdownAlignment" @rendermode="@InteractiveRenderMode.GetInteractiveRenderMode(PageState.Site.Runtime, PageState.Site.Prerender)" />
+        <ControlPanelInteractive PageState="@PageState" SiteState="@SiteState" ButtonClass="@ButtonClass" ContainerClass="@ContainerClass" HeaderClass="@HeaderClass" BodyClass="@BodyClass" ShowLanguageSwitcher="@ShowLanguageSwitcher" LanguageDropdownAlignment="@LanguageDropdownAlignment" @rendermode="@InteractiveRenderMode.GetInteractiveRenderMode(PageState.Site.Runtime, false)" />
     }
 }
 

Oqtane.Client/UI/ModuleInstance.razor

@@ -1,13 +1,17 @@
 @namespace Oqtane.UI
 @inject SiteState SiteState
 
-@if (PageState.RenderMode == RenderModes.Interactive || ModuleState.RenderMode == RenderModes.Static)
+@if (_comment != null)
 {
-    <RenderModeBoundary ModuleState="@ModuleState" PageState="@PageState" SiteState="@SiteState" />
+    @((MarkupString)_comment)
-}
+    @if (PageState.RenderMode == RenderModes.Interactive || ModuleState.RenderMode == RenderModes.Static)
-else
+    {
-{
+        <RenderModeBoundary ModuleState="@ModuleState" PageState="@PageState" SiteState="@SiteState" />
-    <RenderModeBoundary ModuleState="@ModuleState" PageState="@PageState" SiteState="@SiteState" @rendermode="InteractiveRenderMode.GetInteractiveRenderMode(PageState.Site.Runtime, ModuleState.Prerender ?? PageState.Site.Prerender)" />
+    }
+    else
+    {
+        <RenderModeBoundary ModuleState="@ModuleState" PageState="@PageState" SiteState="@SiteState" @rendermode="InteractiveRenderMode.GetInteractiveRenderMode(PageState.Site.Runtime, _prerender)" />
+    }
 }
 
 @code {
@@ -20,6 +24,24 @@ else
     [CascadingParameter]
     private Module ModuleState { get; set; }
 
+    private bool _prerender;
+    private string _comment;
+
+    protected override void OnParametersSet()
+    {
+        _prerender = ModuleState.Prerender ?? (PageState.Site.Prerender && PageState.User == null);
+        _comment = "<!-- rendermode: ";
+        if (PageState.RenderMode == RenderModes.Static && ModuleState.RenderMode == RenderModes.Static)
+        {
+            _comment += RenderModes.Static;
+        }
+        else
+        {
+            _comment += $"{RenderModes.Interactive}:{PageState.Runtime} - prerender: {_prerender}";
+        }
+        _comment += " -->";
+    }
+
 
     [Obsolete("AddModuleMessage is deprecated. Use AddModuleMessage in ModuleBase instead.", false)]
     public void AddModuleMessage(string message, MessageType type)

Oqtane.Client/UI/RenderModeBoundary.razor

@@ -10,7 +10,6 @@
         {
             @if (ModuleType != null)
             {
-                @((MarkupString)$"<!-- rendermode: {((PageState.RenderMode == RenderModes.Static && ModuleState.RenderMode == RenderModes.Static) ? RenderModes.Static : RenderModes.Interactive + ":" + PageState.Runtime)} - prerender: {ModuleState.Prerender ?? PageState.Site.Prerender} -->")
                 <ModuleMessage @ref="moduleMessageTop" Message="@_messageContent" Type="@_messageType" />
                 @DynamicComponent
                 @if (_progressIndicator)

Oqtane.Server/Components/App.razor

@@ -139,7 +139,7 @@
                 {
                     _renderMode = site.RenderMode;
                     _runtime = site.Runtime;
-                    _prerender = site.Prerender;
+                    _prerender = site.Prerender && !Context.User.Identity.IsAuthenticated;
 
                     Route route = new Route(url, alias.Path);
                     var page = site.Pages.FirstOrDefault(item => item.Path.Equals(route.PagePath, StringComparison.OrdinalIgnoreCase));