Root cause traced by sherlock with Playwright (docs/sherlock-+dev-bug.md
on the sherlock branch). The previous routing fix at 94869f3 was
necessary but not sufficient: placeDeviceAt() now reaches promptInline()
correctly, but the synchronous input.focus() is undone ~6ms later by
the browser's compatibility-mousedown default — which blurs the active
element when the mousedown landed on a non-focusable target (SVG rect /
SVG root). The blur listener then ran done(null) and ripped the
<foreignObject> out before m could type a name.
Primary fix: e.preventDefault() at the top of both armed-tool branches
in onCanvasPointerDown. Suppresses the focus-shifting default so the
input keeps focus.
+Frame is also wrapped for symmetry. It wasn't strictly affected (its
namer runs from pointerup, not pointerdown) but preventDefault avoids
a subtle text-selection side effect during rubber-band drag.
Secondary fix in promptInline.done(): clear activeNamer *before*
fo.remove(). Enter-key triggers a synchronous blur listener which
re-enters done() — if remove() ran first, the re-entry hit a
"node no longer a child" pageerror. Reordering makes the re-entry a
no-op (activeNamer is already null).
Verified locally: served /main.js shows e.preventDefault() inside both
tool branches and the reordered done() body. go test -race ./... still
green.
mAi
12804619b2