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@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 }} TimePicker provides extensive accessibility support and enables users with disabilities to acquire complete control over its features. The TimePicker 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. ### TimePicker 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 TimePicker 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-expanded=true/false` | Announces whether the Popup is visible or not. | | | `aria-haspopup=dialog` | Indicates the component has a Dialog Popup. | | | `aria-controls=.k-animation-container id` | Points to the popup element. Signifies that the `combobox` element controls the `dialog` popup. | | | `readonly` or `aria-readonly` | Attribute is rendered only when the DatePicker is readonly. | | `.k-invalid .k-input-inner,.ng-invalid .k-input-inner` | `aria-invalid=true` | Attribute is rendered only when the picker is in form and announces the valid state of the component. | | `.k-disabled .k-input-inner` | `disabled=disabled` or `aria-disabled=true` | Attribute is rendered only when the DatePicker is disabled. | | `.k-input-button` | `role=button` or `nodeName=button` | The element must either be a `<button>` element or must have `role=button` assigned. | | | `aria-label` | The button needs an accessible name to be assigned to it. | | | `tabindex=-1` | Button element must not be focusable. | | `.k-timepicker.k-disabled .k-button` | `disabled` or `aria-disabled` | Attribute is rendered only when the picker is disabled. | ### List Elements on the Popup | Selector | Attribute | Usage | | -------- | --------- | ----- | | `.k-time-list` | `role=listbox` | The timelist elements must have `listbox` role assigned. | | | `aria-label` or `aria-labelledby` | The listbox needs an accessible name to be assigned to it. | | `.k-reset` | `role=none/presentation` | The k-rest `<ul>` element semantic meaning must be removed from the accessibility tree. | | `.k-item` | `role=option` | The available options in the listbox must be marked as such. | | | `aria-selected=true/false` | Selected option must have its `aria-selected` attribute set to `true`. | ### 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 listbox](https://www.w3.org/TR/wai-aria-1.2/#listbox) ## Section 508 The TimePicker is fully compliant with the [Section 508 requirements](http://www.section508.gov/). ## Testing The TimePicker 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 TimePicker has been tested with the following screen readers and browsers combinations: | Environment | Tool | | ----------- | ---- | | Firefox | NVDA | | Chrome | JAWS | | Microsoft Edge | JAWS |