Accessibility in EJ2 TypeScript Progress button control

10 May 20234 minutes to read

ARIA attributes

The web accessibility makes web content and web applications more accessible for people with disabilities. Mostly, it helps in dynamic content change and development of advanced user interface controls with AJAX, HTML, JavaScript, and related technologies. The ProgressButton provides a built-in compliance with WAI-ARIA specifications. The WAI-ARIA support is achieved using the aria-label, aria-valuemin, aria-valuemax, and aria-valuenow attributes in the ProgressButton. It helps by providing information about the widget for assistive technology in the screen readers.

Properties	Functionality
aria-label	Indicates the text content of the ProgressButton.
aria-valuemin	Indicates the minimum value for the ProgressButton.
aria-valuemax	Indicates the maximum value for the ProgressButton.
aria-valuenow	Indicates the current value for the ProgressButton.

Keyboard interaction

Keyboard shortcuts	Actions
`Enter/Space`	Starts the progress.

index.ts
index.html
styles.css
import { ProgressButton } from '@syncfusion/ej2-splitbuttons';

let progressBtn: ProgressButton = new ProgressButton({content: 'Spin Left', enableProgress: true});

progressBtn.appendTo('#progressbtn');
<!DOCTYPE html>
<html lang="en">

<head>
    <title>EJ2 ProgressButton</title>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <meta name="description" content="This demo for Essential JS2 Progress button has progress indicator and spinner. It supports texts, icons, styles, sizes, positions, and its customization." />
    <meta name="author" content="Syncfusion" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-base/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-buttons/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-popups/styles/material.css" rel="stylesheet" />
    <link href="https://cdn.syncfusion.com/ej2/23.1.36/ej2-splitbuttons/styles/material.css" rel="stylesheet" />
    <link href="styles.css" rel="stylesheet" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.38/system.js"></script>
    <script src="systemjs.config.js"></script>
<script src="https://cdn.syncfusion.com/ej2/syncfusion-helper.js" type ="text/javascript"></script>
</head>

<body>
    <div id='loader'>LOADING....</div>
    <div id='container'>
        <button id='progressbtn'></button>
    </div>
</body>

</html>
@font-face {
	font-family: 'btn-icon';
	src:
	url(data:application/x-font-ttf;charset=utf-8;base64,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) format('truetype');
	font-weight: normal;
	font-style: normal;
}

.e-btn-sb-icon {
	font-family: 'btn-icon' !important;
	speak: none;
	font-size: 55px;
	font-style: normal;
	font-weight: normal;
	font-variant: normal;
	text-transform: none;
	line-height: 1;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

.e-download::before {
  content: '\e706';
}

.e-play::before {
  content: '\e700';
}

.e-pause::before {
  content: '\e701';
}

#container {
    visibility: hidden;
}

#loader {
  color: #008cff;
  height: 40px;
  left: 45%;
  position: absolute;
  top: 45%;
  width: 30%;
}