bench-forgejo/web_src/js/features/aria.md
wxiaoguang 694441fec5
Remove customized (unmaintained) dropdown, improve aria a11y for dropdown (#19861)
* Remove customized (unmaintained) dropdown, improve aria a11y for dropdown

* fix repo permission

* use action instead of onChange

* re-order the CSS selector

* fix dropdown behavior for repo permissions, make elements inside menu item non-focusable

* use menu/menuitem instead of combobox/option. use tooltip(data-content) for aria-label, prevent from repeated attaching

* click menu item when pressing Enter

* code format

* fix repo permission

* repo setting: prevent from misleading users when error occurs

* fine tune the repo collaboration access mode dropdown (in case the access mode is undefined in the template)

Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
2022-06-03 17:38:26 -04:00

1.3 KiB

This document is used as aria/a11y reference for future developers

ARIA Dropdown

There are different solutions:

  • combobox + listbox + option
  • menu + menuitem

At the moment, menu + menuitem seems to work better with Fomantic UI Dropdown, so we only use it now.

<div>
  <input role="combobox" aria-haspopup="listbox" aria-expanded="false" aria-controls="the-menu-listbox" aria-activedescendant="item-id-123456">
  <ul id="the-menu-listbox" role="listbox">
    <li role="option" id="item-id-123456" aria-selected="true">
      <a tabindex="-1" href="....">....</a>
    </li>
  </ul>
</div>

Fomantic UI Dropdown

<!-- read-only dropdown -->
<div class="ui dropdown"> <!-- focused here, then it's not perfect to use aria-activedescendant to point to the menu item -->
  <input type="hidden" ...>
  <div class="text">Default</div>
  <div class="menu transition hidden" tabindex="-1">
    <div class="item active selected">Default</div>
    <div class="item">...</div>
  </div>
</div>

<!-- search input dropdown -->
<div class="ui dropdown">
  <input type="hidden" ...>
  <input class="search" autocomplete="off" tabindex="0"> <!-- focused here -->
  <div class="text"></div>
  <div class="menu transition visible" tabindex="-1">
    <div class="item selected">...</div>
    <div class="item">...</div>
  </div>
</div>