The browse SPA's URL bar now reflects the currently-selected node and
the show-hidden toggle, so:
- bookmarking / copy-pasting the URL re-opens the same view
- reload (forced by the admin-mode toggle, which has to reload to
pick up the elevation cookie) lands the user back on the same
selection with intermediates expanded
- browser back/forward walks history correctly, re-applying both
the scope AND the file/hidden state at each step
Implementation:
events.js: syncURLToSelection() — builds <scope>/?file=<rel>&hidden=1
via URLSearchParams (with %2F → '/' so the URL bar reads cleanly)
and history.replaceState's it. Called from every selectedId set
site (single-click, arrow-key nav, right-click), from the show-
hidden toggle, and after rescopeServer's scope pushState so the
new scope keeps the hidden flag.
app.js bootstrap: reads ?hidden=1 in addition to the existing
auto-flip-on-dotfile logic, so an explicit hidden toggle survives
reload.
app.js popstate: re-walks ?file= via openDeepLink so back/forward
restore not just the scope but the selection + expansion path.
Also re-applies hidden=1.
Choice: replaceState (not pushState) on selection changes — the only
"intentional" navigation step is the scope rescope (already pushState).
A long click sequence shouldn't pollute history.
What this doesn't cover: sibling folders the user expanded that aren't
on the path-to-selection. Persisting that needs sessionStorage; for
"as much as possible without overcomplicating" the URL-only state
captures scope, selected node, and the path-to-selection (auto-
expanded by the deep-link walker) — the most common case.
FS-API mode (offline / file://) is a no-op — no shareable URL.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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