@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 {{ site.product }} DateTimePicker provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.
The DateTimePicker 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.
### Input 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 DateTimePicker 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-haspopup=dialog` | Indicates the component has a Dialog Popup. |
| | `aria-expanded=true/false` | Announces whether the Popup is visible or not. |
| | `aria-controls=.k-calendar-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/hour/minute) in the Calendar Popup or the Time Popup. Should only be present when the Popup is open. |
| | `readonly=readonly` or `aria-readonly=true` | Attribute is rendered only when the DateTimePicker is readonly. |
| | `aria-invalid=true` | Attribute is rendered only when the DateTimePicker is in form and announces the valid state of the component. |
| | `tabindex=0` | The element should be focusable. |
| `.k-disabled .k-input-inner` | `disabled=disabled` or `aria-disabled=true` | Attribute is rendered only when the DateTimePicker 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` | Button element should not be focusable. |
| `.k-datetimepicker.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}})
### Popup Date/Time View Chooser
The Date/Time view chooser in the Popup element of the component should implement the specification for the **ButtonGroup** component.
[ButtonGroup accessibility specification]({{buttongroup_a11y_link}})
### TimePicker Popup
Time Popup implementation should follow the specification for the TimePicker component.
[TimePicker accessibility specification]({{timepicker_a11y_link}})
### Adaptive Mode
When the component is in adaptive mode, the popup element follows the specifications of the ActionSheet component.
[ActionSheet accessibility specification]({{actionsheet_a11y_link}})
## Resources
[WAI ARIA specification for combobox](https://www.w3.org/TR/wai-aria-1.2/#combobox)
[WAI ARIA specification for spinbutton](https://www.w3.org/TR/wai-aria-1.2/#spinbutton)
[ARIA practices Date Picker Dialog Example](https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/datepicker-dialog.html)
## Section 508
The DateTimePicker is fully compliant with the [Section 508 requirements](http://www.section508.gov/).
## Testing
The DateTimePicker 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 DateTimePicker has been tested with the following screen readers and browsers combinations:
| Environment | Tool |
| ----------- | ---- |
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |