transfer images list to html

common/lib/capa/capa/inputtypes.py

@@ -816,9 +816,11 @@ class DragAndDropInput(InputTypeBase):
         try:
             images_list = self.system.filestore.listdir(os.path.join('static',
                                                     'images', imagepath))
+            images_list = ['/static/images/' + img for img in images_list]
         except:
             images_list = []
         self.loaded_attributes['images_list'] = images_list
+        self.to_render.add('images_list')
 
 registry.register(DragAndDropInput)
 

common/lib/capa/capa/templates/drag_and_drop_input.html

@@ -4,7 +4,7 @@
         % if images_list:
             <ul>
                 % for item in images_list:
-                    <li>${item}</li>
+                    <li><image width="100" height="100" src="${item}"></image></li>
                 % endfor
             </ul>
         % endif