Grid incorrect keyboard behaviour when focus is in command buttons

[martintabakov]

Bug report

Currently, if you focus the command buttons, pressing tab will navigate to the buttons on the next row.

Reproduction of the problem

1. Open this dojo example - https://dojo.telerik.com/lmIJIUCH/2
2. Click on the cell containing the command buttons on the first row
3. Press enter to focus the Edit button
4. Press tab multiple times.

Current behavior

The focus will move to the buttons on the next row.

Expected/desired behavior

When the focus is on the Delete button, pressing Tab should return the focus to the current cell so that you can navigate to the remaining cells on the same row.

Environment

• Kendo UI version: 2024.3.1015
• Browser: [all]

[gdenchevprog]

Moving this to under consideration for the moment.

While resolving this is not that difficult, we are not following the roving tabindex approach like the other suites do. And implementing this approach could potentially require a revamp of the entire keynav logic.

We may need an entirely separate task to address the underlying problem. I am leaving this until we've had an additional discussion.

[gdenchevprog]

Update

The correct navigation behavior is the following one:

Tab key should not allow you to focus any of the command buttons(except for Update/Cancel when the row is in inline edit mode). If your focus is currently on a cell in the Grid and you hit tab, you should go directly to the pager even if there is a command column available.

If you're inside a command column with multiple buttons, hitting enter should focus the first button. When the first button is focused, hitting tab should move the focus to the next button or shift+tab to go to the previous one.

If the currently focused button is the first/last one, the next tab operation must bring the focus back to the cell itself.

In the checkbox selection column, the focus should go directly to the checkbox, not the cell itself.