function setupTabs()

in src/assets/js/tabs.js [1:56]

• 14 lines of code
• 6 McCabe index (conditional complexity)

function setupTabs(container, storageName, defaultTab) {
  var tabs = $('li a', container);
  // console.log('>> #tabs', tabs.length, storageName);

  // Return 'foo' from either '#foo' or '?tab=foo'
  function getTabIdFromQuery(query) {
    var match = query.match(/(#|\btab=)([\w-]+)/);
    return match ? match[2] : '';
  }

  function clickHandler(e) {
    // console.log('>> click event for tab:', $(this));
    e.preventDefault();
    $(this).tab('show');

    var id = getTabIdFromQuery($(this).attr('href'));

    // Persist to local storage so we can pre-select around the site
    if (storageName && window.localStorage) {
      // console.log('>> setting localStorage', storageName, id);
      window.localStorage.setItem(storageName, id);
    }

    var l = location, query = '?tab=' + id;
    if (id && l.search != query) {
      var url = l.protocol + '//' + l.host + l.pathname + query + l.hash;
      // console.log('>> history.replaceState of', url);
      history.replaceState(undefined, undefined, url);
    } else {
      // console.log('>> location.search is already "', query, '"');
    }
  }

  function selectTab(id) {
    var tab = tabs.filter('[href="#' + id + '"]');
    // console.log('>> selectedTab:', id, tab);
    tab.click();
  }

  tabs.click(clickHandler);

  var selectedTab;
  if (selectedTab = getTabIdFromQuery(location.search)) {
    // console.log('>> setting tab from location:', selectedTab)
    selectTab(selectedTab);
  } else if (storageName && window.localStorage
    && (selectedTab = window.localStorage.getItem(storageName))) {
    // console.log('>> setting tab from localStorage: ', selectedTab)
    selectTab(selectedTab);
  } else if (defaultTab) {
    // console.log('>> setting tab from defaultTab')
    selectTab(defaultTab);
  } else {
    // console.log('>> not setting the tab - using page default')
  }
}