ambari/ambari-web/app/templates/main/menu_item.hbs

{{!
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
}}
<a href="#/main/{{unbound view.content.routing}}">
  {{{unbound view.content.label}}}
  {{#if view.alertsCount}}
      <span class="label label-important alerts-count">
        {{view.alertsCount}}
      </span>
  {{/if}}
</a>
<!--dropdown menu for the items had dropdowns-->
{{#if view.isServicesItem}}
  {{view App.TopNavServiceMenuView}}
{{/if}}
{{#if view.isAdminItem}}
  <ul class="top-nav-dropdown-menu">
    {{#each category in view.dropdownCategories}}
        <li><a href="#" {{action "goToCategory" category.url target="view"}}>{{category.label}}</a></li>
    {{/each}}
  </ul>
{{/if}}
{{#if view.isViewsItem}}
  <ul class="top-nav-dropdown-menu">
    {{#each category in view.content.views}}
        <li><a href="#" {{action "setView" category target="App.router.mainViewsController"}}>{{category.label}}</a></li>
    {{/each}}
  </ul>
{{/if}}