Extract a pure-XBlock version of StudioEditingModule

common/lib/xmodule/xmodule/studio_editable.py

@@ -4,13 +4,13 @@ Mixin to support editing in Studio.
 from xmodule.x_module import module_attr, STUDENT_VIEW, AUTHOR_VIEW
 
 
-class StudioEditableModule(object):
+class StudioEditableBlock(object):
     """
-    Helper methods for supporting Studio editing of xmodules.
+    Helper methods for supporting Studio editing of XBlocks.
 
-    This class is only intended to be used with an XModule, as it assumes the existence of
-    self.descriptor and self.system.
+    This class is only intended to be used with an XBlock!
     """
+    has_author_view = True
 
     def render_children(self, context, fragment, can_reorder=False, can_add=False):
         """
@@ -19,15 +19,14 @@ class StudioEditableModule(object):
         """
         contents = []
 
-        for child in self.descriptor.get_children():  # pylint: disable=no-member
+        for child in self.get_children():  # pylint: disable=no-member
             if can_reorder:
                 context['reorderable_items'].add(child.location)
-            child_module = self.system.get_module(child)  # pylint: disable=no-member
-            rendered_child = child_module.render(StudioEditableModule.get_preview_view_name(child_module), context)
+            rendered_child = child.render(StudioEditableModule.get_preview_view_name(child), context)
             fragment.add_frag_resources(rendered_child)
 
             contents.append({
-                'id': child.location.to_deprecated_string(),
+                'id': unicode(child.location),
                 'content': rendered_child.content
             })
 
@@ -46,6 +45,9 @@ class StudioEditableModule(object):
         return AUTHOR_VIEW if hasattr(block, AUTHOR_VIEW) else STUDENT_VIEW
 
 
+StudioEditableModule = StudioEditableBlock
+
+
 class StudioEditableDescriptor(object):
     """
     Helper mixin for supporting Studio editing of xmodules.