[plugins] Work around blueprint templates (web UI) sharing a namespace

src/ovtk_audiencekit/core/Plugins.py

@@ -29,6 +29,17 @@ class OvtkBlueprint(quart.Blueprint):
             endpoint = self.name + endpoint
         return quart.url_for(endpoint, *args, **kwargs)
 
+    def render(self, name, **kwargs):
+        """render_template that prefers the plugin-specific templates"""
+        full = self.template_folder / name
+        if os.path.exists(full):
+            template_string = None
+            with open(full, 'r') as template_file:
+                template_string = template_file.read()
+            return quart.render_template_string(template_string, **kwargs)
+        else:
+            return quart.render_template(name, **kwargs)
+
 
 class PluginBase(ABC):
     plugins = {}

src/ovtk_audiencekit/plugins/builtins/Scene/Plugin.py

@@ -138,7 +138,7 @@ class ScenePlugin(PluginBase):
 
     async def ui_ctrlpanel(self):
         groups = self._get_state()
-        return await quart.render_template('index.html', init_state=json.dumps(groups))
+        return await self.blueprint.render('index.html', init_state=json.dumps(groups))
 
     async def ui_setscene(self, name=None, cmd=None):
         active = cmd == 'activate'