@progress/wct-a11y-spec
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Contains accessibility and keyboard navigation specification of Telerik and Kendo web components.
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Out of the box, the Kendo UI for Vue DatePicker provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.
The DatePicker 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.
### DatePicker Wrapping Element
| Selector | Attribute | Usage |
| -------- | --------- | ----- |
| `.k-input-inner` | `role=combobox` | The input element should follow the `combobox` specification. |
| | `label for` or `aria-label` or `aria-labelledby` | The input needs an accessible name to be assigned to it. |
| | `aria-required=true` | The attribute is rendered only when the DatePicker is in a `form` HTML element and announces the required state of the component. |
| | `aria-haspopup=grid` | Indicates the component has a Calendar Popup that implements `role="grid"`. |
| | `aria-expanded=true/false` | Announces whether the Popup is visible or not. |
| | `aria-controls=.k-animation-container id` | Points to the popup element. Signifies that the `combobox` element controls the Calendar `grid`. |
| | `aria-activedescendant=.k-calendar-td.k-focus id` | Points to the focused item (date/month/year) in the Calendar Popup. Should only be present when the Popup is open. |
| | `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. |
| | `readonly=readonly` or `aria-readonly=true` | The attribute is rendered only when the DatePicker is readonly. |
| | `aria-invalid=true` | The attribute is rendered only when the DatePicker is in a `form` HTML element and announces the valid state of the component. |
| | `tabindex=0` | The element must be focusable. |
| `.k-disabled .k-input-inner` | `disabled=disabled` or `aria-disabled=true` | The attribute is rendered only when the DatePicker is disabled. |
| `.k-input-button` | `role=button` or `nodeName=button` | The element should either be a `<button>` element or should have `role="button"` assigned. |
| | `aria-label` | The button needs an accessible name to be assigned to it. |
| | `tabindex=-1` | The button element should not be focusable. |
| `.k-datepicker.k-disabled .k-button` | `disabled` or `aria-disabled` | Attribute is rendered only when the picker is disabled. |
### Calendar Popup
The Calendar in the Popup element of the component should implement the specification for the **Calendar** component.
[Calendar accessibility specification]({{calendar_a11y_link}})
## Resources
[WAI ARIA specification for combobox](https://www.w3.org/TR/wai-aria-1.2/#combobox)
[ARIA practices Date Picker Dialog Example](https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/datepicker-dialog.html)
## Section 508
The DatePicker is fully compliant with the [Section 508 requirements](http://www.section508.gov/).
## Testing
The DatePicker 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 DatePicker has been tested with the following screen readers and browsers combinations:
| Environment | Tool |
| ----------- | ---- |
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |