Full verification of the XREF/data/ARCHIVE/worker wave (three
reviewers, one forensic) found no blockers and no crossfire damage;
five majors and several minors are fixed here.
- ARCHIVE now packages XREFs: the bytes registry added by the same
commit is consulted (the in-code 'no xref store exists' comment was
false within the commit), and the drawing is packaged only after
the full save preparation — without it kernel solids shipped
without their ACIS data.
- PendingClose stores the stable tab id instead of a vector index:
the web save now completes asynchronously, and closing a lower tab
during the serialization window shifted indices — closing the WRONG
tab, or panicking on a stale one. All producers and consumers
resolve the id at use.
- The xref bytes registry is capped (6 entries, oldest evicted): every
open, drop, and pick registered full drawing bytes with no bound —
an OOM waiting to happen. Reopened recents register too, so any
entry path can serve as another drawing's xref.
- A re-picked data-link source with the same name but different bytes
no longer silently replaces the first (the browser hands back bare
names, so two same-named files collided and every reference read
the newer pick): the pick is refused and the user is told why.
- The unresolved-xref warning lists file names (what to drop on the
page), not internal block names; the ZIP writer refuses the ZIP64
sentinel values (0xFFFF counts, 0xFFFFFFFF sizes/offsets) instead
of emitting archives that send strict readers hunting for a ZIP64
EOCD that is absent; docs note the worker-side saves.
Known follow-ups documented, not fixed here: the serde-skipped
ExtendedEntity/CadDocument raw bytes still drop on worker crossings
(needs acadrust accessors — upstream), and WBLOCK/SAVEALL/ARCHIVE
still serialize inline (the worker route is a small follow-up).
The last four big web-vs-desktop gaps.
XREFs: XATTACH reads the picked drawing's bytes and registers them
name-keyed (the image/PDF-underlay pattern), pre-parses on the web
worker, and the commit merge produces the same xref block flow as
native. Opened drawings resolve xrefs from the registry (trailing-name
match) before cache build; unresolved references produce ONE warning
listing the names and the fix — drop the referenced files on the page
(drops and picker opens now register their bytes) and reopen or
XRELOAD. XRELOAD works off the registry on unsaved drawings too.
Data Link & Extraction: spreadsheet links read picked xlsx/csv bytes
(calamine from slices / CSV from string) through a session registry,
so preview, refresh, and table-insert work on web; extraction takes
external drawings via a multi-file picker parsed on the worker, and
outputs CSV/TXT/.dxex via download_bytes. The disabled 'Add folder'
button explains why.
ARCHIVE/ETRANSMIT: assembles the drawing plus registered images, PDF
underlays, and session plot tables into a deterministic ZIP (minimal
writer over flate2 — no new dependency) delivered as
{stem}_transmit.zip; skipped dependencies are reported by name.
Save/autosave off the UI thread: the parse worker gains a serialize
action (protocol v5) — the document is prepared once on the main
thread (clone, styles, dimension bake), then the DWG/DXF writer pass,
the dominant cost, runs on the worker; any worker failure falls back
to inline serialization with the identical shared implementation.
The save path also clears the dirty flag only when the tab didn't
change mid-write, and the runtime-fields sidecar now carries
graphic_data, fixing a pre-existing loss of raw DWG round-trip bytes
on web-opened documents.
Afonsop