accessibility-checker-engine
Version:
An automated accessibility checking engine for use by other tools
97 lines (84 loc) • 4.65 kB
HTML
<html lang="en-US">
<head>
<title>widget_tabbable_single - Accessibility Checker Help</title>
<script>
RULE_MESSAGES = {"en-US":{"pass":"Components with a widget role should have no more than one tabbable element","potential_multiple_tabbable":"Component with \"{0}\" role has more than one tabbable element","group":"Components with a widget role must have no more than one tabbable element"}};
RULE_ID = "widget_tabbable_single"
</script>
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<!-- 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?
The primary keyboard navigation convention uses `Tab` and `Shift+Tab` keys to move focus from one UI component to another.
Other keys (primarily the arrow keys) move focus within components comprised of multiple focusable elements.
Authors must follow this convention and provide no more than one tab stop per component (providing keyboard focus) and insure the keyboard tab sequence is logical.
In addition, the keyboard operations should be consistent with common keyboard interface conventions described in the [ARIA Patterns](https://www.w3.org/WAI/ARIA/apg/patterns/), especially for assistive technology users.
<!-- This is where the code snippet is injected -->
<div id="locSnippet"></div>
### What to do
* Modify the widget’s keyboard navigation model to contain only one tab stop to set focus in or on the widget.
</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 2.1.1 Keyboard](https://www.ibm.com/able/requirements/requirements/#2_1_1)
* [IBM 2.4.3 Focus Order](https://www.ibm.com/able/requirements/requirements/#2_4_3)
* [ARIA practices - Patterns](https://www.w3.org/WAI/ARIA/apg/patterns/)
* [ARIA practices - Developing a Keyboard Interface](https://www.w3.org/WAI/ARIA/apg/practices/keyboard-interface/)
* [Verify - Check tab or navigation order](https://www.ibm.com/able/toolkit/verify/manual/#tabnavorder)
* [Verify - Maintaining user's point of regard](https://www.ibm.com/able/toolkit/verify/manual/#pointofregard)
### Who does this affect?
* People using a screen reader, including blind, low vision, and neurodivergent people
* People who physically cannot use a pointing device
* People with tremors or other movement disorders
</script></mark-down>
<!-- End side panel -->
</div>
</div>
</div>
</body>
</html>