Github user corneadoug commented on the pull request: https://github.com/apache/incubator-zeppelin/pull/389#issuecomment-157302094 I'm a bit late for the party, However I would prefer the ``isReadOnly()`` part in zeppelin-web to be handled as a DataFactory instead of storing it in the $rootScope and copy pasting the same function in every controllers. There is a good example here: https://github.com/apache/incubator-zeppelin/blob/master/zeppelin-web/src/components/notebookListDataFactory/notebookList.datafactory.js And you can see it in action here: https://github.com/apache/incubator-zeppelin/blob/master/zeppelin-web/src/components/navbar/navbar.controller.js
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