hide_cell_number

readme.md

This extension allows hiding all cell numbers of a notebook. This can be achieved by clicking on the button toolbar:

Internals

The codecell hiding state is stored in the metadata IPython.notebook.metadata.hide_prompt. If it is set to true, all cell number will be hidden on reload.

hide_cell_number.yaml

Type: IPython Notebook Extension
Compatibility: 3.x 4.x
Main: main.js
Name: Hide cell number
Description: "toggle number of all cells"

main.js

// toggle display of all cells' number

define([
    'jquery',
    'base/js/namespace'
], function(
    $,
    IPython
) {
    "use strict";

    function set_number_visible(show) {
        IPython.notebook.metadata.hide_prompt = show;

        if (show) $('div.prompt').show('slow');
        else $('div.prompt').hide('slow');

        var btn = $('#toggle_numbers');
        btn.toggleClass('active', !show);

        var icon = btn.find('i');
        icon.toggleClass('fa-chevron-left', show);
        icon.toggleClass('fa-chevron-right', !show);
        $('#toggle_numbers').attr(
            'title', (show ? 'Hide' : 'Show') + ' cell numbers');
    }

    function toggle() {
        set_number_visible($('#toggle_numbers').hasClass('active'));
    }

    var load_ipython_extension = function() {
        IPython.toolbar.add_buttons_group([{
            id : 'toggle_numbers',
            label : 'Hide cell numbers',
            //icon : 'fa-list-ol',
            icon : 'fa-chevron-left',
            callback : function() {
                toggle();
                setTimeout(function() { $('#toggle_numbers').blur(); }, 500);
            }
        }]);

        set_number_visible(IPython.notebook.metadata.hide_prompt === true);
    };

    return {
        load_ipython_extension : load_ipython_extension
    };
});