Sidebar first menu generates invalid list markup
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3303192. -->
Reported by: [pcate](https://www.drupal.org/user/3513833)
Related to !42 !30
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>To be valid HTML <code>ul</code> tags can only have <code>li</code> tags as direct children. The sidebar first menu renders nested lists outside of their parent item tags however. </p>
<p><strong>Current markup:</strong></p>
<pre> <ul><br> <li><a>1</a></li><br> <li><a>2</a></li><br> <ul><br> <li><a>2.1</a></li><br> </ul><br> <li><a>3</a></li><br> </ul></pre><p><strong></strong>Valid markup:</p>
<pre> <ul><br> <li><a>1</a></li><br> <li><br> <a>2</a><br> <ul><br> <li><a>2.1</a></li><br> </ul><br> </li><br> <li><a>3</a></li><br> </ul></pre><p>You can see the difference in markup if you select the sidebar first menu option for "Bypass USWDS menu processing for these menus."</p>
<p>In the twig template:</p>
<pre><li{{ item.attributes.addClass(item_classes) }}><br> {{ link(item.title, item.url, link_attributes) }}<br></li><br>{% if item.is_expanded and menu_level < 2 and item.below %}<br> {{ menus.menu_links(item.below, menu_level + 1, megamenu, loop.index, item, duplicate_parent, attributes) }}<br>{% elseif item.is_expanded and menu_level == 0 and item.below %}<br> {{ menus.menu_links(item.below, menu_level + 1, megamenu, loop.index, item, duplicate_parent, attributes) }}<br> {{ _self.menu_links(item.below, attributes.removeClass(classes), menu_level + 1, classes, dropdown_classes, attributes) }}<br>{% endif %}</pre><p>should be:</p>
<pre><li{{ item.attributes.addClass(item_classes) }}><br> {{ link(item.title, item.url, link_attributes) }}<br><br> {% if item.is_expanded and menu_level < 2 and item.below %}<br> {{ menus.menu_links(item.below, menu_level + 1, megamenu, loop.index, item, duplicate_parent, attributes) }}<br> {% elseif item.is_expanded and menu_level == 0 and item.below %}<br> {{ menus.menu_links(item.below, menu_level + 1, megamenu, loop.index, item, duplicate_parent, attributes) }}<br> {{ _self.menu_links(item.below, attributes.removeClass(classes), menu_level + 1, classes, dropdown_classes, attributes) }}<br> {% endif %}<br></li></pre><h4 id="summary-steps-reproduce">Steps to reproduce</h4>
<ol>
<li>Add a menu with at least 2 levels to the sidebar first region.</li>
<li>Inspect the menu markup with the browser dev tools.</li>
<li><code>ul</code> tag will be below it's parent <code>li</code> tag instead of inside it.</li>
</ol>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Update <code>menu--sidebar_first.html.twig</code> twig template to render sub menus inside their parent <code>li</code> tag.</p>
<h3 id="summary-remaining-tasks">Remaining tasks</h3>
<ol>
<li>Create patch for review.</li>
</ol>
<h3 id="summary-ui-changes">User interface changes</h3>
<p>N/A</p>
<h3 id="summary-api-changes">API changes</h3>
<p>N/A</p>
<h3 id="summary-data-model-changes">Data model changes</h3>
<p>N/A</p>
issue
GitLab AI Context
Project: project/uswds_base
Instance: https://git.drupalcode.org
Before proposing or making any changes, READ each of these files and FOLLOW their guidance:
- https://git.drupalcode.org/project/uswds_base/-/raw/3.11.x/README.txt — project overview and setup
Repository: https://git.drupalcode.org/project/uswds_base
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