From 4516de9e587a2e6233a674332141528940dfac88 Mon Sep 17 00:00:00 2001
From: Leon van Kammen <leonvankammen@gmail.com>
Date: Sun, 2 Aug 2026 15:17:43 +0200
Subject: [PATCH] updated sidecar-logic for thumbnails

---
 src/.lua/util.lua            |  3 +++
 src/page/dir.lua             |  5 +++++
 src/page/footer.html         | 29 +----------------------------
 src/page/footer.janusxr.html | 33 +++++++++++++++++++++++++++++++++
 src/plugin/janusxr.lua       |  1 +
 src/plugin/markdown.lua      |  2 +-
 6 files changed, 44 insertions(+), 29 deletions(-)
 create mode 100644 src/page/footer.janusxr.html

diff --git a/src/.lua/util.lua b/src/.lua/util.lua
index 475296a..bd64fe4 100644
--- a/src/.lua/util.lua
+++ b/src/.lua/util.lua
@@ -90,6 +90,9 @@ util.template = function(content,data)
   mdata.title          = mdata.title or app.opts.subtitle
   mdata.header_include = mdata.header_include or ''
   mdata.header         = app.tpl( LoadAsset('page/header.html'), mdata )
+  if not mdata.footer_janusxr then
+    mdata.footer_janusxr = app.tpl( LoadAsset('page/footer.janusxr.html'), mdata )
+  end
   mdata.footer         = app.tpl( LoadAsset('page/footer.html'), mdata )
   return app.tpl( content, mdata )
 end
diff --git a/src/page/dir.lua b/src/page/dir.lua
index 700d324..6819ddd 100644
--- a/src/page/dir.lua
+++ b/src/page/dir.lua
@@ -59,9 +59,14 @@ return {
           if v.view3D then 
             data.item = v 
             data.title = data.item.title
+            data.parent = v.parent
             local port = ':' .. GetPort()
             if port == 80 then port = '' end
             data.url = GetScheme() .. '://' .. GetHost() .. port ..  v.url 
+            if v.janusxr then
+              -- what to do here? no generated portals?
+              data.footer_janusxr = app.tpl( util.readfile(v.path), data )
+            end
           end
         end)
         if data.item then
diff --git a/src/page/footer.html b/src/page/footer.html
index 8f8cf67..d515275 100644
--- a/src/page/footer.html
+++ b/src/page/footer.html
@@ -38,34 +38,7 @@
 </html>
 
 <!-- JanusXR portalroom, see https://janusxr.org for markup -->
-<fireboxroom>
-  <assets>
-    <assetshader id="xrforgeportal" src="${opts.baseurl}shader/xrforgeportal.shadertoy.frag" shadertype="shadertoy"></assetshader>
-    {if items and #items > 1 then 
-      for i,v in pairs(items) do
-        print('\t<assetimage src="' .. v.thumbnail .. '" id="img' .. i .. '"/>')
-      end
-    end}
-  </assets>
-  <room pos="0 0 -4" skybox="true" showavatar="false" use_local_asset="room_plane">
-    <light js_id="dan9-janus:light/light_cone_angle=0-6" pos="0 3 2" collision_trigger="false" />
-    <text js_id="location" pos="0 6 -5" billboard="y" col="#BBFFFF" scale="10 10 1" text="${url}" rotation="-180 0 -180" emissive="0 0 0" roughness="0.3" metalness="0" />
-    {if item then 
-      print('\t<object id="${url}"/>')
-    end}
-    {if items and #items > 1 then
-      for i,v in pairs(items) do
-        local width  = 3.2
-        local center = -((#items*width)/1.3) + (i*width)
-        print('\t\t<object js_id="portal_' .. i .. '" pos="' .. center .. ' 0 0" rotation="0 180 0">')
-        print('\t\t  <link url="' .. v.url .. '" thumb_id="img' .. i .. '" title_col="0.4 0.37 0.4" pos="0 0 0.001" draw_glow="true" scale="3 3 0.1" />')
-        print('\t\t  <link url="' .. v.url .. '" shader_id="xrforgeportal" pos="0 0 0.003" draw_glow="false" scale="3 3 0.1" />')
-        print('\t\t  <text text="' .. v.title .. '" pos="0 3.4 0" col="1 1 1"  font_scale="false" scale="0.2 0.2 0.2" />')
-        print('\t\t</object>')
-      end
-    end}
-  </room>
-</fireboxroom>
+${footer_janusxr}
 
 <!-- C-code
 
diff --git a/src/page/footer.janusxr.html b/src/page/footer.janusxr.html
new file mode 100644
index 0000000..834ead2
--- /dev/null
+++ b/src/page/footer.janusxr.html
@@ -0,0 +1,33 @@
+<fireboxroom>
+  <assets>
+    <assetshader id="xrforgeportal" src="${opts.baseurl}shader/xrforgeportal.shadertoy.frag" shadertype="shadertoy"></assetshader>
+    {if items and #items > 0 then 
+      for i,v in pairs(items) do
+        print('\t<assetimage src="' .. v.thumbnail .. '" id="img' .. i .. '"/>')
+      end
+    end}
+  </assets>
+  <room pos="0 0 -4" skybox="true" showavatar="false" use_local_asset="room_plane">
+    <light js_id="dan9-janus:light/light_cone_angle=0-6" pos="0 3 2" collision_trigger="false" />
+    <text js_id="location" pos="0 6 -5" billboard="y" col="#BBFFFF" scale="10 10 1" text="${url}" rotation="-180 0 -180" emissive="0 0 0" roughness="0.3" metalness="0" />
+    {if item then 
+      print('\t<object id="${url}"/>')
+    end}
+    {if items and #items > 0 then
+      local portals = {}
+      for i,v in pairs(items) do table.insert(portals, v) end 
+      if parent then table.insert(portals, p) end
+      for i,v in pairs(items) do
+        local width  = 3.2
+        local center = -((#items*width)/1.3) + (i*width)
+        local url    = v.url
+        if v.dir then url = url .. "/" end
+        print('\t\t<object js_id="portal_' .. i .. '" pos="' .. center .. ' 0 0" rotation="0 180 0">')
+        print('\t\t  <link url="' .. url .. '" thumb_id="img' .. i .. '" title_col="0.4 0.37 0.4" pos="0 0 0.001" draw_glow="true" scale="3 3 0.1" />')
+        print('\t\t  <link url="' .. url .. '" shader_id="xrforgeportal" pos="0 0 0.003" draw_glow="false" scale="3 3 0.1" />')
+        print('\t\t  <text text="' .. v.title .. '" pos="0 3.4 0" col="1 1 1"  font_scale="false" scale="0.2 0.2 0.2" />')
+        print('\t\t</object>')
+      end
+    end}
+  </room>
+</fireboxroom>
diff --git a/src/plugin/janusxr.lua b/src/plugin/janusxr.lua
index 50a6dba..1601a48 100644
--- a/src/plugin/janusxr.lua
+++ b/src/plugin/janusxr.lua
@@ -21,6 +21,7 @@ app.on('scan_experience_file', function(exp)
         app.pub("scan_experience_janusxr", nil, {exp=exp, item=item}) -- be nice to other plugins
         app.cache.items[ exp.file.ino ] = exp 
         exp.view3D = true
+        exp.janusxr = true
         print("✅     └─ plugin/janusxr: " .. exp.file.name)
       end
     else
diff --git a/src/plugin/markdown.lua b/src/plugin/markdown.lua
index d72845a..d7af64a 100644
--- a/src/plugin/markdown.lua
+++ b/src/plugin/markdown.lua
@@ -36,7 +36,7 @@ local plugin = {
       key='app.opts.plugin_markdown_strategy',
       title='Markdown strategy',
       info='',
-      default="README.md",
+      default="headerparagraph",
       values={headerparagraph='title is first header + 1st paragraph is description',disabled='disabled'}
     },
   }