Grid with MultiSelect Mode: space key on selection cell doesn't work

[AndreasSamjeske]

Description

When a cell with a checkbox is focused, it should be toggleable by hitting SPACE. In fact, that works in Vaadin 23.
In Vaadin 24 you have to hit ENTER first. Then you are in interaction mode (I hope, this is the right term). Now the focus is directly on the checkbox and hitting SPACE works. But I don't wanna be forced to enter this mode.

Expected outcome

SPACE toggles the checkbox in grid cells in Vaadin 24, too.

Minimal reproducible example

Vaadin Examples will do:

• Vaadin 23 Multi-Select grid works as expected.
• Vaadin latest (currently 24) Multi-Select grid is broken.

Steps to reproduce

1. Hitting TAB until some cell of grids content area has focus.
2. Navigating to a cell with a checkbox using arrow keys.
3. Pressing SPACE.

Environment

Vaadin version(s): 24
OS: Windows 11

Browsers

Edge

[web-padawan]

The issue is caused by the selection column change described in vaadin/flow-components#5833 (comment):

In Vaadin 24.1 the selection checkbox had a click event listener, that performed the selection and sent it over to the server.
In the latest Vaadin this is now changed, and the checkbox performs the actual selection on the checked-changed event.

The actual change was vaadin/flow-components#5246 and it landed in Vaadin 24.2 (so 24.2 and 24.3 are also affected).

We will discuss this issue with the team. Probably the click listener logic could be restored.