modified the html static book to only enable annotator.js when notes are enabled for the course

lms/djangoapps/notes/api.py

@@ -2,6 +2,8 @@ from django.contrib.auth.decorators import login_required
 from django.http import HttpResponse, Http404
 from django.core.exceptions import ValidationError
 from notes.models import Note
+from notes.utils import notes_enabled_for_course
+from courseware.courses import get_course_with_access
 import json
 import logging
 
@@ -34,6 +36,11 @@ def api_request(request, course_id, **kwargs):
         Raises a 404 if the resource type doesn't exist, or if there is no action 
             method associated with the HTTP method.
     '''
+    course = get_course_with_access(request.user, course_id, 'load')
+    if not notes_enabled_for_course(course):
+        log.debug('Notes not enabled for course')
+        raise Http404
+
     resource_map = api_resource_map()
     resource_name = kwargs.pop('resource')
     resource = resource_map.get(resource_name)

lms/djangoapps/notes/utils.py

+# TODO: make a separate policy setting to enable/disable notes. 
+def notes_enabled_for_course(course):
+    ''' Returns True if notes are enabled for the course, False otherwise. '''
+    notes_tab_type = 'notes'
+    return next((True for tab in course.tabs if tab['type'] == notes_tab_type), False)

lms/djangoapps/notes/views.py

 from django.contrib.auth.decorators import login_required
+from django.http import Http404
 from mitxmako.shortcuts import render_to_response
 from courseware.courses import get_course_with_access
 from notes.models import Note
+from notes.utils import notes_enabled_for_course
 import json
 
 @login_required
 def notes(request, course_id):
-    ''' Displays a student's notes in a course. '''
+    ''' Displays the student's notes. '''
+
     course = get_course_with_access(request.user, course_id, 'load')
+    if not notes_enabled_for_course(course):
+        raise Http404
     
     notes = Note.objects.filter(course_id=course_id, user=request.user).order_by('-created', 'uri')
     json_notes = json.dumps([n.as_dict() for n in notes])

lms/djangoapps/staticbook/views.py

@@ -5,6 +5,7 @@ from mitxmako.shortcuts import render_to_response
 
 from courseware.access import has_access
 from courseware.courses import get_course_with_access
+from notes.utils import notes_enabled_for_course
 from static_replace import replace_static_urls
 
 
@@ -102,6 +103,7 @@ def html_index(request, course_id, book_index, chapter=None):
     """
     course = get_course_with_access(request.user, course_id, 'load')
     staff_access = has_access(request.user, course, 'staff')
+    notes_enabled = notes_enabled_for_course(course)
 
     book_index = int(book_index)
     if book_index < 0 or book_index >= len(course.html_textbooks):
@@ -130,4 +132,5 @@ def html_index(request, course_id, book_index, chapter=None):
                                'course': course,
                                'textbook': textbook,
                                'chapter': chapter,
-                               'staff_access': staff_access})
+                               'staff_access': staff_access,
+                               'notes_enabled': notes_enabled})

lms/templates/static_htmlbook.html

@@ -31,11 +31,14 @@
             anchorToLoad = options.anchor_id;
         }
 
-        var onComplete = function(url) {
-            return function() {
-                $('#viewerContainer').trigger('notes:init', [url]);
-            }
-        };
+        var onComplete = function() {};
+        if(options.notesEnabled) {
+            onComplete = function(url) {
+                return function() {
+                    $('#viewerContainer').trigger('notes:init', [url]);
+                }
+            };
+        }
 
         loadUrl = function htmlViewLoadUrl(url, anchorId) {
             // clear out previous load, if any:
@@ -102,6 +105,11 @@
             options.anchor_id = ${anchor_id};
         %endif
 
+        options.notesEnabled = false;
+        %if notes_enabled is not UNDEFINED and notes_enabled:
+            options.notesEnabled = true;
+        %endif
+
         $('#outerContainer').myHTMLViewer(options);
     });
   </script>