Represents an operation that the user is trying to accomplish through a specific input mechanism.
Tests the received callback value for KeyboardNavigationManipulator against the values of this enum to implement the operation in your UI.
| None | Default value. Indicates an uninitialized enum value. |
| SelectAll | Selects all UI selectable elements or text. |
| Cancel | Cancels the current UI interaction. |
| Submit | Submits or concludes the current UI interaction. |
| Previous | Selects the previous item. |
| Next | Selects the next item. |
| PageUp | Moves the selection up one page (in a list which has scrollable area). |
| PageDown | Moves the selection down one page (in a list which has scrollable area). |
| Begin | Selects the first element. |
| End | Selects the last element. |