Navigating into an unreadable directory failed cleanly in the header
(handleError reverts CurrentPath to the previous path) but left the
list empty forever: the recovery re-read of the previous directory
found it unchanged, so handleBuildIndexSuccess took the no-change
fast path — which assumes the view already shows that content — while
the failed navigation's navigateToDirectory reset had just wiped
TotalEntries/Pages. No frame was emitted and the browser sat on a
correct header over a dead list (seen on device tapping ".." into
/storage/emulated, which is media_rw:media_rw 0750; only
/storage/emulated/0 is app-exposed).
The fast path now requires a live view (TotalEntries != 0); a
torn-down view always takes the full rebuild, restoring the rows.
Regression test TestHandleResult_NavigationFailureRecoveryReloads
(red without the fix, green with it); verified on emulator and phone.
The browser list was cached: files added/removed/renamed, or whose mtime
changed, did not show up (and did not re-sort) until the user navigated
away and back in. In particular, opening a file and returning showed a
stale list — a new file created elsewhere only appeared after navigating
up and back down.
The browser now re-reads the current directory while it is on screen:
- A short (~1 s) timer re-reads the visible directory so external changes
(including inbound syncs) appear live, re-sorted in the current sort
mode. A landing re-index repopulates the visible+prefetch pages
synchronously (no flicker), preserves the scroll offset, and re-filters
an active search without a scroll jump.
- Returning to the browser from the editor triggers one immediate re-read
so the list is current the moment you land back.
- Bounded to one read per directory: a refresh while a read of the same
directory is in flight coalesces, and a stale result for a directory the
user has since left is dropped rather than clobbering the current view.
- A failed background refresh keeps the last good view (the next tick
retries); a failed navigation still recovers to the previous directory.
- Change detection: a refresh that finds the directory unchanged rebuilds
nothing and emits no frame, preserving the event-driven emission
contract (TestNoFramesWhileIdle_Browser) while the browser idles.
Verified on-device: external add while sitting in the browser appears and
re-sorts to the top within ~1 s; an external add+remove made while in the
editor is reflected immediately on return; an external delete drops the
row within ~1 s.
- Define pool.FileSystem interface in internal/io/pool/filesystem.go
- Move DirEntry interface to internal/io/pool/types/types.go to break
the pool <-> mock import cycle
- Implement real.FileSystem with atomic writes (temp file + os.Rename)
- Update mock.FileSystem to satisfy pool.FileSystem interface
- Update worker pool tasks to accept pool.FileSystem interface
- Update main.go to use RealFileSystem by default, with -root flag
- Update all browser/editor/test references to types.DirEntry
