fix: infinite load for library content block view (#34412)

* fix: hide view button when block is not configured

* fix: remove script for load timer if no children or library

* fix: remove print message

* fix: NoneType error is tests

cms/templates/studio_xblock_wrapper.html

@@ -20,6 +20,7 @@ show_inline = xblock.has_children and not xblock_url
 section_class = "level-nesting" if show_inline else "level-element"
 label = determine_label(xblock.display_name_with_default, xblock.scope_ids.block_type)
 messages = xblock.validate().to_json()
+has_not_configured_message = messages.get('summary',{}).get('type', None) == 'not-configured'
 block_is_unit = is_unit(xblock)
 %>
 
@@ -190,7 +191,7 @@ block_is_unit = is_unit(xblock)
     </div>
     % if not is_root:
         <div class="wrapper-xblock-message xblock-validation-messages" data-locator="${xblock.location}"/>
-        % if xblock_url:
+        % if xblock_url and not has_not_configured_message:
         <div class="xblock-header-secondary">
             <div class="meta-info">${_('This block contains multiple components.')}</div>
             <ul class="actions-list">

xmodule/library_content_block.py

@@ -451,7 +451,12 @@ class LibraryContentBlock(
         context['is_loading'] = is_updating
 
         # The following JS is used to make the "Update now" button work on the unit page and the container view:
-        fragment.add_javascript_url(self.runtime.local_resource_url(self, 'public/js/library_content_edit.js'))
+        if root_xblock and 'library' in root_xblock.category:
+            if root_xblock.source_library_id and len(root_xblock.children) > 0:
+                fragment.add_javascript_url(self.runtime.local_resource_url(self, 'public/js/library_content_edit.js'))
+        else:
+            fragment.add_javascript_url(self.runtime.local_resource_url(self, 'public/js/library_content_edit.js'))
+
         fragment.initialize_js('LibraryContentAuthorView')
         return fragment