A short list opened after a long one drew all its rows stacked on one
point. The fault was not in the list tab: rebuild() handed the row stack
to setContent() while it was still empty, so the content was sized to
max(rows, viewport) = the viewport. The rows arrived after that, and for
a short list the same formula yields the same height, so resize() saw no
change and skipped layout(). A long list changes the height and never
showed it.
relayoutContent() now runs whenever the content changed, rather than
leaning on resize()'s change detection - that detection is the wrong
instrument for "the children moved".
The list tab was the only affected caller: the panels use ListView,
which positions its rows itself, and the inspector fills its body
before setContent.
Also drops the comma line under the list. Every section that can carry a
list supplies openList, so the comma fallback in fieldFactory was
unreachable; listToText/listFromText go with it. The list-value test now
covers coerceListItem through coerceValue instead, so the boolean
spelling stays guarded.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
A list property in the inspector was a single text field holding a comma
separated line -- unreadable past a handful of items, and it could not
carry anything but text. It becomes a button ("3 items") that opens a
sixth centre tab, where every item is a row built by the very widget the
inspector would build for that item kind.
The renderer was free: a PropertyDef of kind 'list' already carries
`items`, so item i becomes a synthetic def of that kind -- number, text,
boolean and colour rows appear without a new branch.
The way into the tab goes through the state (EditorState.listSlot,
openList(), event 'list'), like every other tab switch here; a tab may
not call showTab itself. ListSlot lives next to Selection rather than in
the tab folder, or state.ts would have to import upwards.
A row's handlers must not close over a snapshot of the list: they outlive
a commit, since the tab only rebuilds when the length changes, and the
second edited row would otherwise revive the value the first replaced.
showTab switched five `visible` lines by hand, where a sixth tab is
silently forgotten; it is a Record<CentreTab, Widget> now.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
