@progress/wct-a11y-spec/dist/react/aria/infinitecalendar_aria.md

Contains accessibility and keyboard navigation specification of Telerik and Kendo web components.

Out of the box, the Kendo React InfiniteCalendar provides extensive accessibility support and enables users with disabilities to acquire complete control over its features.


The InfiniteCalendar 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.

### Calendar Table element


The wrapper of the infinite calender should follow the requirements for the `grid` role (https://www.w3.org/TR/wai-aria-1.2/#grid).

| Selector | Attribute | Usage |
| -------- | --------- | ----- |
| `.k-calendar-infinite` | `role=grid` | Specifies the role of the Calendar wrapper element. |
|  | `aria-label` or `aria-labelledby` | Pointing to the current view `k-calendar-title` element (e.g. `March 2022` or `2020-2029`). |
|  | `aria-activedescendant=.k-calendar-td.k-focus id` | Pointing to the currently active (focused) date/month/year/decade cell in the tables. |
|  | `tabindex=0` | Makes the grid focusable. |
| `.k-calendar-infinite .k-calendar-table` | `role=none` | All `k-calendar-table` elements must have their role set to `none`. That is because their content must be made belonging to a single `grid` component. |
| `.k-calendar-infinite .k-calendar-thead` | `role=rowgroup` | The `k-calendar-thead` must explicitly have its role set to `rowgroup` as its semantics have been removed while setting its `<table>` role to `none`. |
| `.k-calendar-infinite .k-calendar-tbody` | `role=rowgroup` | The `k-calendar-tbody` elements must explicitly have their roles set to `rowgroup` as their semantics have been removed while setting their `<table>` elements role to `none`. |
| `.k-calendar-infinite .k-calendar-tr` | `role=row` | The `k-calendar-tr` elements must explicitly have their roles set to `row` as their semantics have been removed while setting their `<table>` elements role to `none`. |
| `.k-calendar-infinite .k-calendar-th` | `role=columnheader` | The `k-calendar-th` elements must explicitly have their roles set to `columnheader` as their semantics have been removed while setting their `<table>` elements role to `none`. |
|  | `scope=col` | Specifies that the header is applied to a column. |
|  | `aria-label` | Specifies the full name of the day of the week (the column header). |
| `.k-calendar-caption` | `role=columnheader` | The `k-calendar-caption` elements must explicitly have their roles set to `columnheader` as their semantics have been removed while setting their `<table>` elements role to `none`. |
|  | `scope=col` | Specifies that the header is applied to a column. |
| `.k-calendar-infinite .k-calendar-td` | `role=gridcell` | The cells must explicitly have their roles set to `gridcell` as their semantics have been removed while setting their `<table>` elements role to `none`. |
|  | `aria-label ` or `title` | Applicable in year view - for better context contains the full name of the month. May also be applied in month view to specify the full text for a date. |
| `.k-calendar-td.k-selected` | `aria-selected` | Specifies whether the date is selected or not. |
| `.k-calendar-td.k-disabled` | `aria-disabled` | When a date is not available for selection, its gridcell element must have the attribute set to `true`. |

### Button and Link elements

| Selector | Attribute | Usage |
| -------- | --------- | ----- |
| `.k-prev-view,.k-next-view` | `tabindex=-1` | The buttons must not be focusable. |
| `.k-calendar-title` | `tabindex=-1` | The button must not be focusable. |
| `.k-nav-today` | `tabindex=-1` | The link must not be focusable. |

## Resources

[ARIA practices Date Picker Dialog Example](https://www.w3.org/WAI/ARIA/apg/example-index/dialog-modal/datepicker-dialog.html)

## Section 508


The InfiniteCalendar is fully compliant with the [Section 508 requirements](http://www.section508.gov/).

## Testing


The InfiniteCalendar 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 InfiniteCalendar has been tested with the following screen readers and browsers combinations:

| Environment | Tool |
| ----------- | ---- |
| Firefox | NVDA |
| Chrome | JAWS |
| Microsoft Edge | JAWS |