@progress/wct-a11y-spec/dist/angular/keyboard/filter-menu_keyboard.md

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

## Keyboard Shortcuts

| Shortcut | Behavior |
| -------- | -------- |
| `Alt` + `Down Arrow` | Opens the FilterMenu Popup when focus is on the Grid header cell or on the main filter menu button (depending on whether the Grid is navigable or not). Focus is trapped and wrapped within the Popup. |
| `Tab` | Navigates to the next focusable element in the Popup. If current focus is on the last element, moves focus to the first focusable item in the Popup. |
| `Shift` + `Tab` | Navigates to the previous focusable element in the Popup. If current focus is on the first element, moves focus to the last focusable item in the Popup. |
| `Enter` | For button items, executes the currently focused button action. |
| `Escape` | Closes the FilterMenu Popup and returns focus to the header cell or the main button. |

> All internal components follow their own keyboard navigation when focused.

## Resources

[WAI-ARIA: Dialog Role](https://developer.mozilla.org/en-US/docs/Web/Accessibility/ARIA/Roles/dialog_role)

[ARIA Authoring Practices: Listbox Pattern](https://www.w3.org/WAI/ARIA/apg/patterns/listbox/)