https://lobservateur.bf/media/system/js/tabs-state.js

1/**
2 * @copyright   Copyright (C) 2005 - 2014 Open Source Matters, Inc. All rights reserved.
3 * @license     GNU General Public License version 2 or later; see LICENSE.txt
4 */
5
6/**
7 * JavaScript behavior to allow selected tab to be remained after save or page reload
8 * keeping state in localstorage
9 */
10
11jQuery(function() {
12
13    var loadTab = function() {
14        var $ = jQuery.noConflict();
15
16        jQuery(document).find('a[data-toggle="tab"]').on('click', function(e) {
17            // Store the selected tab href in localstorage
18            window.localStorage.setItem('tab-href', $(e.target).attr('href'));
19        });
20
21        var activateTab = function(href) {
22            var $el = $('a[data-toggle="tab"]a[href*=' + href + ']');
23            $el.tab('show');
24        };
25
26        var hasTab = function(href){
27            return $('a[data-toggle="tab"]a[href*=' + href + ']').length;
28        };
29
30        if (localStorage.getItem('tab-href')) {
31            // When moving from tab area to a different view
32            if(!hasTab(localStorage.getItem('tab-href'))){
33                localStorage.removeItem('tab-href');
34                return true;
35            }
36            // Clean default tabs
37            $('a[data-toggle="tab"]').parent().removeClass('active');
38            var tabhref = localStorage.getItem('tab-href');
39            // Add active attribute for selected tab indicated by url
40            activateTab(tabhref);
41            // Check whether internal tab is selected (in format <tabname>-<id>)
42            var seperatorIndex = tabhref.indexOf('-');
43            if (seperatorIndex !== -1) {
44                var singular = tabhref.substring(0, seperatorIndex);
45                var plural = singular + "s";
46                activateTab(plural);
47            }
48        }
49    };
50    setTimeout(loadTab, 100);
51
52});