## Keyboard Shortcuts

| Shortcut | Behavior |
| -------- | -------- |
| `Down Arrow` | Selects the next available item. |
| `Up Arrow` | Selects the previous available item. |
| `Alt/Opt(Mac) Down` | Opens pop up |
| `Alt/Opt(Mac) Up` or `Esc` | `Closes popup |
| `Enter` | Selects the focused item. |
| `Space` | Selects the focused item. |
| `printable characters` | Typing "M" or any other printable character should select the next or first item in the list |
| `Esc` | Clears the value when the popup is not open. |


The TreeView element inside the Popup should implement the KB specification for a **TreeView** component.

[TreeView  specification]({{treeview_kb_link}})


 The items in the TreeView should not be selectable when used in the MultiSelectTreeView. Hence, when clicking (or pressing Enter/Space) on an item, it should not receive the `.k-selected` class.

## Resources

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

[ARIA Authoring Practices: Select-Only Combobox](https://www.w3.org/WAI/ARIA/apg/patterns/combobox/examples/combobox-select-only/)

[ARIA Authoring Practices: Navigation Treeview](https://www.w3.org/WAI/ARIA/apg/patterns/treeview/examples/treeview-navigation/)