Four asks, one screen: a folder can be given the tiles it is short of, by hand
or on the way in; the rescan row says RESCAN...; and the wall of thumbnails
scores a frame without the trip to the stage.
- Library.tsx + i18n: "RESCAN FROM THE TOP" is "RESCAN..." in both languages.
The reading is unchanged — a row's roll is still read from the top, its
subfolders included.
- engine/library.ts + Library.tsx: the tile of one frame is one function now
(`makeThumb`: the store, the backup behind it, then the file's own preview
for a RAW or a HEIC and a decode for anything else). The wall's lazy path
calls it instead of keeping its own copy of the same branches.
- engine/library.ts: `missingThumbs` asks which of a folder's rows no tile was
ever drawn for, in one transaction, and `makeThumbs` makes those — a few
frames at a time, and giving up when the caller has moved on.
- Library.tsx: the folder menu carries MAKE THUMBS, which reads the row's
folder and what lies under it; and opening a folder asks for its own frames'
tiles by itself, silently, in the background — the branch too when the
screen is drawing the branch. A frame that lands after the ask is asked for
again, which is why the frame count is a dependency of the effect.
- Library.tsx: a wall card carries the same five stars the stage does, under
the picture, and rates the frame on the click. The click stops at the star,
so scoring a frame is not picking it.
Verified in Chrome at 1440x900 against OPFS standing in for the disk, three
frames with one of them in a subfolder: opening the folder leaves two tiles
(the node's own frames) and MAKE THUMBS takes the roll to three, the frame in
the subfolder included; clearing the store and reloading brings the two back
on the open; the menu reads RESCAN... and MAKE THUMBS; and the wall's fourth
star lights four, writes star 4 to the catalogue row, and takes it back on the
second click. The same checks pass on the built bundle at :8090.
3dtours
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