function init_toc()

in resources/web/docs_js/index-v1.js [163:217]

• 30 lines of code
• 4 McCabe index (conditional complexity)

function init_toc(lang_strings) {
  var title = $('#book_title');

  // Make li elements in toc collapsible
  $('div.toc li ul').each(function() {
    var li = $(this).parent();
    li.addClass('collapsible').children('span').click(function() {
      if (li.hasClass('show')) {
        li.add(li.find('li.show')).removeClass('show');
        if (title.hasClass('show')) {
          title.removeClass('show');
        }
      } else {
        li.parents('div.toc,li').first().find('li.show').removeClass('show');
        li.addClass('show');
      }
    });
  });

  // Make book title in toc collapsible
  if ($('.collapsible').length > 0) {
    title.addClass('collapsible').click(function() {
      if (title.hasClass('show')) {
        title.removeClass('show');
        title.parent().find('.show').removeClass('show');
      } else {
        title.addClass('show');
        title.parent().find('.collapsible').addClass('show');
      }
    });
  }

  // Clicking links or the version selector shouldn't fold/expand
  $('div.toc a, #book_title select').click(function(e) {
    e.stopPropagation();
  });

  // Setup version selector
  var v_selected = title.find('select option:selected');
  title
    .find('select')
    .change(function(e) {
      var version = $(e.target).find('option:selected').val();
      if (version === "other") {
        $("#other_versions").show();
        $("#live_versions").hide();
        return;
      }
      utils.get_current_page_in_version(version).fail(function() {
        v_selected.attr('selected', 'selected');
        alert(lang_strings('This page is not available in the docs for version:')
              + version);
      });
    });
}