accessibility-checker-engine
Version:
An automated accessibility checking engine for use by other tools
93 lines (80 loc) • 4.21 kB
HTML
<html lang="en-US">
<head>
<title>combobox_focusable_elements - Accessibility Checker Help</title>
<script>
RULE_MESSAGES = {"en-US":{"Pass":"DOM focus is allowed only on the combobox element as required","Fail_not_tabbable":"The combobox element does not allow DOM focus as required","Fail_tabbable_child":"The popup of the combobox has DOM focus or has 'aria-activedescendant' defined, which is not allowed","group":"Tabbable focus for the combobox must be allowed only on the text input, except when using a dialog popup"}};
RULE_ID = "combobox_focusable_elements"
</script>
<!--
/******************************************************************************
Copyright:: 2022- IBM, Inc
Licensed 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.
*****************************************************************************/
-->
<!-- Title and messages generated at build time -->
<link rel="icon" href="https://ibm.com/able/favicon-32x32.png" type="image/png">
<link rel="icon" href="https://ibm.com/able/favicon.svg" type="image/svg+xml">
<link rel="stylesheet" href="../common/help.css" />
<script type="module">
import "https://1.www.s81c.com/common/carbon/web-components/version/v1.35.0/code-snippet.min.js";
import "https://1.www.s81c.com/common/carbon/web-components/version/v1.35.0/list.min.js";
</script>
<script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>
<script src="../common/help.js"></script>
</head>
<body>
<div class="bx--grid toolHelp">
<div class="bx--row">
<div class="bx--col-sm-4 bx--col-md-8 bx--col-lg-16 toolHead">
<!-- Group message injected here -->
<h3 id="ruleMessage"></h3>
<!-- Severity level injected here -->
<div id="locLevel"></div>
<!-- Rule specific message injected here -->
<p id="groupLabel"></p>
</div>
</div>
<div class="bx--row">
<div class="bx--col-sm-4 bx--col-md-5 bx--col-lg-8 toolMain">
<!-- Start main panel -->
<mark-down><script type="text/plain">
### Why is this important?
A combobox is a UI interactive component that combines an input and another element, such as a listbox
or grid, that can dynamically pop up to help the user set the value of the input. When a combobox
receives focus, the focus should be set on the text `<input>` element that can either display the
current value or supports editing, so people who use assistive technologies are able to accurately
navigate and interact with the content.
<!-- This is where the code snippet is injected -->
<div id="locSnippet"></div>
### What to do
* Unless the `has-popup` attribute value is `dialog`, set the initial DOM focus only on the combobox’s `<input>` element.
</script></mark-down>
<!-- End main panel -->
<!-- This is where the rule id is injected -->
<div id="ruleInfo"></div>
</div>
<div class="bx--col-sm-4 bx--col-md-3 bx--col-lg-4 toolSide">
<!-- Start side panel -->
<mark-down><script type="text/plain">
### About this requirement
* [IBM 4.1.2 Name, Role, Value](https://www.ibm.com/able/requirements/requirements/#4_1_2)
* [ARIA practices - Combobox Pattern](https://www.w3.org/WAI/ARIA/apg/patterns/combobox/)
* [ARIA specification - combobox role](https://www.w3.org/TR/wai-aria-1.2/#combobox)
### Who does this affect?
* People using a screen reader, including blind, low vision, and neurodivergent people
</script></mark-down>
<!-- End side panel -->
</div>
</div>
</div>
</body>
</html>