Example: WAI-ARIA Tree Grid - Prototype

This Fancytree Tree Grid has uses a prototypical extension to explore ARIA support as discussed here:
w3c/aria-practices/treegrid/examples/treegrid/treegrid-1.html

Extended mode adds this behavior:

• Embedded inputs get the focus, but we distinguish cell-nav-mode and cell-edit-mode. cell-nav-mode steals Up, Down, Left, Right, Home, End fromt input controls to always allow cell navigation.
• Enter: In row-mode: switch to cell-nav-mode. In cell-nav-mode: execute default action or switch to cell-edit-mode for embedded text input. In cell-edit-mode: switch back to cell-nav-mode.
• Esc: In cell-nav-mode: switch to row-mode. In cell-edit-mode: switch to cell-nav-mode.

See also the ARIA Tree View example.