Accessibility in EJ2 JavaScript Switch control
10 May 20235 minutes to read
The web accessibility makes web content and web applications more accessible for people with disabilities. It especially helps in dynamic content change and development of advanced user interface controls with AJAX, HTML, JavaScript, and related technologies.
Switch provides built-in compliance with WAI-ARIA
specifications. WAI-ARIA
support is achieved through the attributes like aria-checked
and aria-disabled
. It helps the people with disabilities by providing information about the widget for assistive technology in the screen readers, such as screen readers.
Properties | Functionality |
---|---|
role | Indicates the switch component. |
aria-checked | Indicates whether the input is checked, unchecked. |
aria-disabled | Indicates that the element is perceivable but disabled, so it is not editable or otherwise operable. |
Keyboard interaction
Keyboard shortcuts | Actions |
Space | When the switch has focus, pressing the Space key changes the state of the switch. |
ej.base.enableRipple(true);
//checked state.
var switchObj = new ej.buttons.Switch({ checked: true });
switchObj.appendTo('#switch1');
//unchecked state.
switchObj = new ej.buttons.Switch({ checked: false });
switchObj.appendTo('#switch2');
<!DOCTYPE html><html lang="en"><head>
<title>EJ2 Switch</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="Typescript UI Controls">
<meta name="author" content="Syncfusion">
<link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-base/styles/fabric.css" rel="stylesheet">
<link href="https://cdn.syncfusion.com/ej2/23.2.4/ej2-buttons/styles/material.css" rel="stylesheet">
<link href="styles.css" rel="stylesheet">
<script src="https://cdn.syncfusion.com/ej2/23.2.4/dist/ej2.min.js" type="text/javascript"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>
<body>
<div id="container">
<table class="size">
<tbody><tr>
<td class="lSize">Checked</td>
<td>
<input type="checkbox" id="switch1">
</td>
</tr>
<tr>
<td class="lSize">Unchecked</td>
<td>
<input type="checkbox" id="switch2">
</td>
</tr>
</tbody></table>
</div>
<script>
var ele = document.getElementById('container');
if(ele) {
ele.style.visibility = "visible";
}
</script>
<script src="index.js" type="text/javascript"></script>
</body></html>
#container {
visibility: hidden;
margin-left: 10px;
}
#loader {
color: #008cff;
height: 40px;
width: 30%;
position: absolute;
top: 45%;
left: 45%;
}
.size tr td {
padding: 10px;
}
.size .lSize {
font-family: "Roboto", "Segoe UI", "GeezaPro", "DejaVu Serif", "sans-serif";
font-size: 13px;
cursor: pointer;
user-select: none;
}