feat: row expanded view for table data

[Light2Dark]

📝 Summary

Popover that displays single row data vertically. By default, it will show all rows in current page. If there is selection, it will show those rows instead.

Some limitations:

• The data is limited to whatever page the table is on. Does not persist selections across pages.
• When you navigate through the page and select/deselect, the index on the page stays the same, meaning you could view different data as you select more rows. We don't keep track of the selected row id as the page number.

Todo:

• add tanstack table feature (focus row)
• tests

🔍 Description of Changes

📋 Checklist

• I have read the contributor guidelines.
• For large changes, or changes that affect the public API: this change was discussed or approved through an issue, on Discord, or the community discussions (Please provide a link if applicable).
• I have added tests for the changes made.
• I have run the code and verified that it works as expected.

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Name	Status	Preview	Comments	Updated (UTC)
marimo-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 7, 2025 5:05pm

[mscolnick]

on thing we could look at is making this a "Slot". i created a library @marimo-team/react-slotz which we use in the codebase already - you can look for some existing usage.

this would allow the plugins to do:

{some_custom_ui}

and then {some_custom_ui} can be picked up in this sidebar

[mscolnick]

this would also clean up a lot of the jotai state that is globally shared, but likely shouldnt be

[Light2Dark]

really cool approach, thanks for the rec!

[github-actions]

🚀 Development release published. You may be able to view the changes at https://marimo.app?v=0.13.7-dev6