Accessibility Features Overview
NOTE
The overall accessibility level of your application depends on the Gallery features you use.
Accessibility Requirement | Support Level |
---|---|
Right-to-Left Support | |
Keyboard Navigation Support | |
Screen Reader Support | |
Contrast Color Theme | |
Mobile Device Support | |
Lighthouse Accessibility Validation | |
Axe Accessibility Validation | |
WAVE Accessibility Validation | |
Section 508 Support | |
WCAG 2.x Support |
- - All component features meet the requirement
- - Some component features may not meet the requirement
- - Accessibility requirement is not supported
Accessibility Standards Compliance
The Gallery component complies to all Section 508 and WCAG 2.x standards criteria.
Keyboard Navigation
A user can use the following keys to interact with the Gallery component:
Key | Action |
---|---|
← / ↑ | Shows the previous image. |
→ / ↓ | Shows the following image. |
Use the registerKeyHandler(key, handler) method to implement a custom handler for a key.
App.js
- import React from 'react';
- import 'devextreme/dist/css/dx.light.css';
- import { Gallery } from 'devextreme-react/gallery';
- class App extends React.Component {
- constructor(props) {
- super(props);
- this.galleryRef = React.createRef();
- }
- render() {
- return (
- <Gallery ref={this.galleryRef} />
- );
- }
- get gallery() {
- return this.galleryRef.current.instance;
- }
- componentDidMount() {
- this.gallery.registerKeyHandler('backspace', function(e) {
- // The argument "e" contains information on the event
- });
- this.gallery.registerKeyHandler('space', function(e) {
- // ...
- });
- }
- }
- export default App;
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