initKeyNav()

in app/assets/javascripts/tree.js [28:66]

• 39 lines of code
• 12 McCabe index (conditional complexity)

  initKeyNav() {
    var li, liSelected;
    li = $('tr.tree-item');
    liSelected = null;
    return $('body').keydown(function(e) {
      var next, path;
      if ($('input:focus').length > 0 && (e.which === 38 || e.which === 40)) {
        return false;
      }
      if (e.which === 40) {
        if (liSelected) {
          next = liSelected.next();
          if (next.length > 0) {
            liSelected.removeClass('selected');
            liSelected = next.addClass('selected');
          }
        } else {
          liSelected = li.eq(0).addClass('selected');
        }
        return $(liSelected).focus();
      } else if (e.which === 38) {
        if (liSelected) {
          next = liSelected.prev();
          if (next.length > 0) {
            liSelected.removeClass('selected');
            liSelected = next.addClass('selected');
          }
        } else {
          liSelected = li.last().addClass('selected');
        }
        return $(liSelected).focus();
      } else if (e.which === 13) {
        path = $('.tree-item.selected .tree-item-file-name a').attr('href');
        if (path) {
          return visitUrl(path);
        }
      }
    });
  }