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ZDDC/browse
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ZDDC b0d0ff13cd fix(browse): serialize navigation — nav-sequence token + per-node load guard 
Every async flow that ends by replacing the tree root (refreshListing,
rescopeServer, reloadDir, and the app.js back/forward popstate handler) ran
without any concurrency guard. Two overlapping listings — a double-click into
a folder, a refresh fired mid-load, rapid back/forward — could resolve out of
order, so a slow fetch would setRoot/pushState on top of a newer navigation
and leave the tree out of sync with state.currentPath and the URL bar.

Introduce a shared monotonic nav-sequence token in events.js (beginNav /
isCurrentNav, exported so the app.js popstate handler joins the same
sequence). Each flow claims a token before its fetch and bails if a newer
navigation has started by the time it resolves — last navigation wins,
stale ones drop their result before mutating anything. navigateIntoFolder's
FS branch is reordered to mutate scope state only after a successful fetch +
token check, so a bail leaves the previous scope intact instead of
half-swapped.

Duplicate-fetch race fixed at the source: tree.loadChildren took only a
`loaded` check, so rapid Enter/ArrowRight key-repeat or a double-click
landing during a single-click's load fired two concurrent fetches that raced
in setChildren. Added a `loading` in-flight flag that serializes per-node
loads — the second caller is a no-op until the first resolves. This also
removes the need to await the fire-and-forget toggleFolder calls in the
keyboard handler.

Also surfaces reloadDir fetch failures via statusError instead of swallowing
them (the success path's create/rename/delete toast no longer hides a failed
refresh).

All 6 browse Playwright specs pass.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-03 15:21:57 -05:00
..
css feat(browse): preview .docx/.xlsx + fix markdown-editor horizontal overflow 2026-06-03 08:55:14 -05:00
js fix(browse): serialize navigation — nav-sequence token + per-node load guard 2026-06-03 15:21:57 -05:00
build.sh refactor(browse): consolidate duplicated helpers into util.js; fix YAML save divergence 2026-06-03 15:07:00 -05:00
README.md feat(browse): generic directory listing tool — default at folder URLs 2026-05-03 19:56:51 -05:00
template.html refactor(browse): drop status-bar footer, route messages to toasts 2026-05-21 12:19:40 -05:00

README.md

browse — directory listing tool

Generic file browser for any directory. Designed to work with ZDDC archives but useful for any folder. Single-file HTML, no install.

How it's used

Two modes, auto-detected at page load:

  1. Online (zddc-server backed). When this HTML is served by zddc-server at a folder URL — which it is by default for any directory under ZDDC_ROOT that doesn't have an index.html — the JS queries the same URL with Accept: application/json to load the directory's listing and renders it as a sortable, filterable table.

  2. Local (FileSystemAccessAPI). Click "Select Directory" in the header to pick any folder on your computer. Works in Chromium-based browsers (Chrome, Edge, Brave, etc.). No server required; the directory is read directly from disk.

What it does

  • Lists files and folders with name, size, type (extension), and modified date.
  • Click a folder to expand inline. Children load lazily on first expand.
  • Click a column header to sort by that column. Click again to reverse.
  • Type in the filter to narrow to entries whose name contains the substring.
  • Click any file to open it in a new tab — for server-backed pages, this routes through zddc-server's normal handler (so an .archive redirect, an apps cascade override, etc. all work as expected).

Design notes

  • No ZDDC-specific filtering. This tool is intentionally domain-agnostic. The companion archive tool layers ZDDC parsing (project / status / revision filters, tracking-number resolution) on top of the same listing API. Use archive when you want ZDDC semantics; use browse when you just want to see what's in a folder.
  • Default at directory URLs. zddc-server's directory.go serves the embedded browse.html bytes for any directory request with Accept: text/html and no index.html present. This means a user navigating to any folder under ZDDC_ROOT gets a usable browser without anyone having to drop a file into the archive.
  • Apps cascade override. Like every other ZDDC tool, the served browse.html can be overridden per-folder via a .zddc apps: entry. The default is the embedded copy from the binary; operators can pin a specific version or URL if they want.