Accessibility Support
Out of the box, the Telerik and Kendo UI Chat provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.
The Chat is compliant with the Web Content Accessibility Guidelines (WCAG) 2.2 standards and Section 508 requirements, follows the Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA) best practices for implementing the keyboard navigation for its component role, provides options for managing its focus and is tested against the most popular screen readers.
WAI-ARIA
This section lists the selectors, attributes, and behavior patterns supported by the component and its composite elements, if any.
| Selector | Attribute | Usage |
|---|---|---|
.k-message-list | role=log | The role of the Chat message list must imply that there is a log (list) of messages. |
aria-label | Announces the purpose of the Chat message list (for ex. 'Message list'). | |
.k-quick-reply | role=button | The quick reply elements must be exposed as buttons. |
tabindex=0 | The quick reply elements must be part of the page tabsequence. | |
.k-message-box>.k-input-inner | role=textbox or nodeName=input | The message must have an input or an element with role=textbox. |
label for or aria-label or aria-labelledby | The message box input must have a label. | |
.k-input-suffix>.k-button | role=button or nodeName=button | The buttons must have appropriate role. |
aria-label or title | The buttons must be properly labelled. | |
.k-button-toggle | aria-controls=.k-toolbar-box id | The ToolBar toggle button must have an aria-controls attribute pointing to the ToolBar element. |
.k-toolbar-box | role=toolbar | The Chat ToolBar must have an appropriate role. |
Chat ToolBar follows the specification for the the ToolBar component.
Managing the Focus
Focusable elements in the Chat are part of the page tabsequence. Those are:
k-quick-reply(if any);k-message-box input;- all
k-input-suffix buttonelements; k-toolbar-box(if present) - it implements the KB navigation for a ToolBar component
Keyboard Shortcuts applicable to the k-message-box input
| Shortcut | Behavior |
|---|---|
F10 | Opens and focuses the Chat ToolBar (if present). |
Keyboard Shortcuts applicable to the k-quick-reply and k-input-suffix button elements
| Shortcut | Behavior |
|---|---|
Enter/Space | Triggers a click action on the button. |
Testing
The Chat has been extensively tested automatically with axe-core and manually with the most popular screen readers.
Screen Readers
The Chat has been tested with the following screen readers and browsers combinations:
| Environment | Tool |
|---|---|
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |
