The first T-197 fix flipped the wrong lever: it called
activateTab(Slots.workspace, 'editor.active'), but _WorkspaceSlot
renders its editor split off arrangement.editorOpen — not the active
tab — so clicking a file still showed nothing. Call arrangement
.openEditor() on editor.opened / active-changed(non-null), and
closeEditor() on active-changed(null) so the split collapses when the
last buffer closes. Test now asserts arrangement.editorOpen, the lever
the UI actually reads.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Two reveal-on-open bugs:
Decisions opened only on the second click (T-196): the detail view
subscribed in didChangeDependencies, which runs after the tab is
revealed, so the broadcast 'selection' that triggered the reveal was
already gone. Hoist the back/forward history out of per-view State into
a retained per-reader ReaderNav (kernel ChangeNotifier in a
ReaderNavRegistry, D-81). The nav records selections, emits 'load' (the
single channel readers display from), and survives mount/unmount — the
reader grabs nav.current on mount, so the first selection lands. Both
the markdown and decisions readers move to this model; the per-view
ReaderHistoryMixin and the markdown post-frame forward hack are gone.
The editor pane never opened (T-197): EditorExtension contributed a
workspace tab but nothing activated it on editor.open. Add an activate()
that reveals the tab on editor.opened / editor.active-changed; the
view's hydrate() pulls the active buffer on mount.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.8