@progress/wct-a11y-spec
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Contains accessibility and keyboard navigation specification of Telerik and Kendo web components.
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Markdown
Out of the box, the {{ site.product }} NumericTextBox provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.
The NumericTextBox is compliant with the [Web Content Accessibility Guidelines (WCAG) 2.2 AA](https://www.w3.org/TR/WCAG22/) standards and [Section 508](https://www.section508.gov/) requirements, follows the [Web Accessibility Initiative - Accessible Rich Internet Applications (WAI-ARIA)](https://www.w3.org/WAI/ARIA/apg/) best practices for implementing the [keyboard navigation](#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-input-inner` | `role=spinbutton` | Announces the spin button capabilities of the NumericTextBox. |
| | `label for` or `aria-label` or `aria-labelledby` | The input requires an accessible name that will be assigned to it. |
| | `aria-required=true` | The attribute is rendered only when the NumericTextBox is in a `form` HTML element and announces the required state of the component. |
| | `aria-describedby=.k-form-hint id/.k-form-error id` | Points to the hint for the input, or if the input is invalid, to the error message. This attribute should only be present when a hint is set or when the input is invalid. |
| | `aria-valuemnow` | Announces the value for the component. |
| | `aria-valuemin` | Announces the minimum value allowed for the component. |
| | `aria-valuemax` | Announces the maximum value allowed for the component. |
| | `aria-invalid=true` | The attribute is rendered only when the NumericTextBox is in a form and announces the valid state of the component. |
| `.k-disabled .k-input-inner` | `disabled=disabled` or `aria-disabled=true` | The attribute is rendered only when the NumericTextBox is disabled. |
| `.k-spin-button>.k-button` | `role=button` or `nodeName=button` | Announces the spin button capabilities of the NumericTextBox. |
| | `aria-label` | The button element must have discernible text. |
| `.k-numerictextbox.k-disabled .k-spin-button>.k-button` | `disabled` or `aria-disabled` | Attribute is rendered only when the picker is disabled. |
## Resources
[WAI-ARIA Authoring Practices: Spinbutton Pattern](https://www.w3.org/WAI/ARIA/apg/patterns/spinbutton/)
## Section 508
The NumericTextBox is fully compliant with the [Section 508 requirements](http://www.section508.gov/).
## Testing
The NumericTextBox has been extensively tested automatically with [axe-core](https://github.com/dequelabs/axe-core) and manually with the most popular screen readers.
> To report any accessibility issues, contact the team through the [Telerik Support System](https://www.telerik.com/account/support-center).
### Screen Readers
The NumericTextBox has been tested with the following screen readers and browsers combinations:
| Environment | Tool |
| ----------- | ---- |
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |