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Tommaso BianchiandClaude Opus 5
9134299233
The reported defect: sketch dimension labels are "not editable" — you draw a
rectangle, its Width field opens, you type, and the as-drawn number is committed
instead. It affects every sketch tool, not just the rounded rectangle.
WHAT THIS ADDS
1. The arbiter (DesignPanel CHAR_HOOK -> DesignCanvas::inline_type_char ->
SketchInlineEditor::type_char). Routes a key by what it IS, not by who the
window manager focused: digits, sign, decimal separator and Backspace/Delete
go to the open value field, Enter/Tab commit, letters stay tool shortcuts.
This is FreeCAD Sketcher's rule (DrawSketchKeyboardManager::
detectKeyboardEventHandlingMode), and the reason its sketcher behaves the same
on every desktop: it never asks who has focus.
2. The [UX] trace (SNAPORCA_UXTRACE) in SketchInlineEditor: open/commit/refused/
cancel, with the prefill and what the control actually held at Enter. It did
not exist — the ladder below was written against a surface no build emitted,
so it could only ever report "nothing opened". typed == prefill on a commit is
the defect's signature and nothing else makes it visible.
3. A draw-then-edit trace in DesignSketchTool: four early returns can swallow the
value-field chain and from outside they are indistinguishable.
4. scripts/CAD/check-gui-click-edit.py — types WITHOUT clicking the field, as a
person does, across Line/Rectangle/Circle/Slot/Polygon/Ellipse/Arc plus label
click-to-edit, and asserts committed == typed != prefill.
5. scripts/CAD/focus-loop.sh — sync/build/assert on behemoth. NOT the orcacad-gui
rig: its image pins deps 216 non-CAD files behind cad-mainline, so today's CAD
sources cannot build there without a deps rebuild.
WHAT IS PROVEN, AND WHAT IS NOT
Green under openbox: 28 checks, every tool, committed == typed != prefill.
But openbox CANNOT adjudicate this bug and the ladder says so in place. There the
field always wins the keyboard, so the same ladder also passes against a binary
with the arbiter compiled out — measured twice. Two ways of removing the keyboard
were tried and both are recorded as dead ends: XSetInputFocus loses to the field's
own re-focus CallAfter, and XSendEvent (xdotool --window) is dropped by GTK, which
made every run red regardless of the code.
Under metacity — same focus-stealing-prevention lineage as the user's mutter — the
mechanism appears in the WM's own log:
Buggy client sent a _NET_ACTIVE_WINDOW message with a timestamp of 0
That is the activation being refused, which is exactly the reported symptom.
present_toplevel() already asks for a server timestamp, so a path is still falling
through to frame->Raise(), which sends time 0. That is the next thing to fix, and
it is tracked; the arbiter alone does not close it. metacity also aborts on this
window (frames.c:1239), so the gate needs a WM that survives before it can return
a verdict.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011FbJKJAJxxkhDTs9XdZzKA