- The portalled tag picker now FOLLOWS its trigger on scroll (rAF-coalesced)
instead of closing. Closing on every wheel tick was a regression for the table,
where the menu used to travel with its row; it still closes once the trigger
leaves the viewport (nothing left to anchor to) or on resize.
- Place the menu by MEASUREMENT, not a px estimate: it opens below, then the
layout effect flips it above only if the real box overflows. The old
`rows * 30px` guess read short at font-scale 1.3 (the rows are rem), which
could leave a fixed menu hanging off the bottom with no way to reach it.
- `toggle` only opens once a position exists, so the `open && coords` gate can
never show a stale anchor.
- One owner for "is there anything to page": `hasPagerContent()` lives in Pager
and DataTable calls it, instead of both re-deriving the rule — that drift is
what left empty control bands behind in the first place.
- Reset the card page on the row COUNT too, not just the filter inputs, so an
unsubscribe or a shrinking refetch can't leave a stale page to spring back.
- `parseCardSize` clamps to the sizes the pager actually offers (like clampView /
clampStatus), so the select can't display one value while the grid pages by another.
- VirtualGrid's docblock now carries the stacking-context constraint: its rows are
transformed, so anything floating an item renders must portal out.
- DataTable: keep `pagerNode` NULLABLE. Extracting Pager made it an always-truthy
element, so the `controls` / `bottomControls` guards always fired and a table with
nothing to page rendered empty `my-3` bands (plus an empty in-band PageToolbar).
- ChannelsProvider: `setView` bails when the tab is unchanged (re-selecting the
active tab, or goToFullHistory forcing "subscribed", stacked dead Back entries),
and pushes a FRESH state like setPage does instead of spreading `_chan`/`_yt`
markers into the tab entry.
- Lift the layout into its own narrow context (`useChannelLayout`): App read the
whole ChannelsState for the fade, so every keystroke in the manager's search box
re-rendered the app root.
- Reset the card page when the row set or sort changes (both tabs) — the clamp only
hid a stale page, which came back when the filter was cleared.
- Sort + slice the card rows only in cards mode; table mode was copy-sorting ~300
rows per render for a result nothing read.
- Validate persisted `cardSize` / `sort` (`parseCardSize`, `parseSortState`), matching
the clamp-on-read convention the module's other persisted values already follow;
a corrupt size made the page count NaN and emptied the grid.
- Pager: page-size changes scroll to the top too (they re-slice from a new first item).
- ColumnSortControl: a stored sort naming a column this table no longer offers is
treated as no sort, instead of showing a direction arrow for a sort that isn't applied.
- Drop the stale "rows" layout comments (that variant was retired this sprint).
UAT round 1 feedback:
- Retire the `rows` layout — it barely differed from the table; keep Table + Cards.
- The card now shows the About cell (+ its hover overlay) and the priority stepper
in every layout, not just the table: ChannelLayoutGrid gains named slots
(lead / about / actions) and stops hiding the `hideInCard` columns, since the
roomy desktop card has space the cramped mobile fallback did not.
- Fix the table losing its centering with "Rows per page: All": a long-titled
channel stretched the uncapped Channel column (~289→429px) and overflowed the
centered table. Cap it with a max-w element inside the cell (table-layout:auto
ignores a cell max-width), the same trick AboutCell already uses. Gaps now 163/162.
Self-review follow-ups: the `rows` layout mapped the primary column without a
React key (single-element today, but a warning waiting to happen); wrap it in a
keyed Fragment. Also replace the guessed card/row rowEst with browser-measured
values (176 / 62) so the scrollbar doesn't jump on first scroll.
A generic ViewSwitcher (reused from the feed) drives a per-account layout
shared by the Subscriptions + Discovery tabs. `table` keeps the DataTable
(numbered pager); `cards` and `rows` render a virtualized grid over the same
client-side list via the new ChannelLayoutGrid, which composes cells straight
from each table's Column<T> render closures (cardPrimary/hideInCard/cardLabel),
so both tabs — with their different columns — get the views for free. Status
chips surface in the fixed band when the table's own controls row is gone.
peter