The column sort and the filters are a VIEW; the playlist's stored order only
changes when the user presses "Save this order", which still goes through the
undoable path. Picking a sort used to write straight to the server, so merely
looking at the list by title rewrote the playlist and marked a YouTube-linked
mirror dirty.
The table:
- playlistColumns.tsx holds the column defs; the body renders them as table rows
and fills the grip cell itself, since the handle needs the row's sortable
listeners that a render closure can't reach.
- The # column shows the STORED position, so a view-sort never renumbers the
playlist under the reader.
- Saving is withheld while a filter is active (it would drop the hidden items),
and drag is disabled under any view, with the reason spelled out rather than
silently doing nothing.
- applyView/sameOrder live in lib/playlistView.ts with tests: the sort and the
channel grouping compose, and getting that wrong produces a plausible order
that the save button would then persist.
- dnd-kit KeyboardSensor: the grip was focusable and called itself "reorder",
but only a pointer could move it.
The guards:
- Delete is ONE dialog with every outcome. It was two chained confirms where the
second one's Cancel/Escape/backdrop meant "delete here only" — dismissing the
dialog deleted the playlist. ConfirmProvider gained useChoice() for it.
- ConfirmProvider focuses Cancel when an offered action is destructive; the
confirm button took autoFocus unconditionally, so a stray Enter on an open
dialog ran "Delete user" or "Clear audit log".
- Removing an item asks first, and rebases the undo history instead of throwing
it away: useUndoable.rebase maps every snapshot, so the reorder history stays
valid for the remaining items.
- A failed detail query showed "Loading…" forever; it now says so and offers a
retry. Rename and reorder failures are surfaced instead of swallowed (reorder
was a bare .then(), which also produced an unhandled rejection).
- Local reorder/remove no longer require YouTube write scope.
- playlistName() replaces the watch-later localizer copied into three files.