Loklak Timeline Using Sphinx Extension In Yaydoc

In Yaydoc, I decided to add option, to show show the twitter timeline which showthe latest twitter feed. But I wanted to implement it using loklak instead of twitter embedded plugin. I started to search for an embedded plugin that exists for loklak. There is no such plugin, hence I built my own plugin. You can see the source code here.

Now that I have the plugin, the next phase is to add the plugin to the documentation. Adding the plugin by appending the plugin code to HTML is not viable. Therefore I decided to make Directive for Sphinx which adds a timeline based on the query parameter which user provides.

In order to make a Directive, I had to make a Sphinx extension which creates a timeline Directive. The Directive has to look like this

.. timeline :: fossasia

from docutils import nodes

from docutils.parsers import rst

class timeline(nodes.General, nodes.Element):

def visit(self, node):



def depart(self, node):

class TimelineDirective(rst.Directive):
  name = 'timeline'
  node_class = timeline
  has_content = True
  required_argument = 1
  optional_argument = 0
  final_argument_whitespace = False
  option_spec = {}

 def run(self):
    node = self.node_class()
    node.display_name = self.content[0]
    return [node]

def setup(app):            app.add_javascript("https://cdn.rawgit.com/fossasia/loklak-timeline-plugin/master/plugi
  app.add_node(timeline, html=(visit, depart))
  app.add_directive('timeline', TimelineDirective)

We have to create an empty class for Nodes that inherits`Node.General` and `Node.Elements`. This class is used for storing the value which will be passed by the directive.

I wrote a `Visit` function which executes when sphinx visits the `timeline` directive. `Visit` function basically appends the necessary html code needed to render the twitter timeline. Then I created TimelineDirective class which inherits rst.Directive. In that class, I defined a run method which read the argument from the directive and passed it to the node. Finally I defined a setup method which adds the loklak-timeline-plugin js to the render html node, and directive to the sphinx. Setup function has to be defined, in order to detect module as an extension by the sphinx.


Loklak Timeline Using Sphinx Extension In Yaydoc