Vito
2964a3b632
* feat(thumbnails): thumbnail format, quality and size as server settings
Thumbnail format (webp default, jxl, jpeg), quality (1-100, default 80)
and size limit (128-2048 px, default 512) are server settings in the
config.json thumbnails section, saved with the settings revision. The
never-read gallery thumbnail_size is gone: older saves wrote its unused
default 256 into config.json.
One module names previews (<stem>_thumb.webp/.jxl/.jpg) and finds the
preview a source owns, preferring the configured format; legacy names
are still found. The encoder module writes every preview atomically and
verifies it decodes. JPEG XL needs no new dependency: Pillow (natively
or with pillow_jxl), ffmpeg with libjxl, or cjxl; without one the
settings refuse jxl (400 jxl-unavailable) and GET says why. Encoder
processes are tracked, bounded and killed at shutdown.
* feat(thumbnails): every preview writer and lookup follows the thumbnail settings
Automatic previews (capture and first view), the thumbnail job, the
legacy gallery routes and the history route write <stem>_thumb.webp
(or .jxl/.jpg) with the configured quality and size limit, for images
and videos alike: video frames, ffmpeg's included (a PNG on stdout,
never upscaled), and the placeholder are encoded like images.
Listings, duplicates, enrichment, the autotag scan and the history
route show any preview the file owns, the current format first, so
older _thumb.png previews keep working until converted. A request for
an older name answers the current preview. Previews are served with
an explicit image/webp or image/jxl type and the same cache headers.
The plan and status count missing, outdated (another format) and
ready previews; the missing job never writes beside an outdated one.
Removing a file removes its previews in every format; the clear
removes .webp and .jxl too. Encoder processes are killed at shutdown.
A preview is only a placeholder: inspection refuses paths under
thumbnails/ and always reads the original, and the inspector cover
accepts the listing's preview in any format the file owns.
* feat(thumbnails): Convert outdated thumbnails as an Activity job
POST /jobs/thumbnails {mode: "convert"} starts "Convert outdated
thumbnails" under the thumbnail job's kind, guarded admission, worker
threads and cancel at a file boundary. For each file whose preview is
in another format, it writes the new preview from the source (atomic,
verified; a video with no decodable frame fails instead of getting the
placeholder), then removes that file's old-format previews in its
thumbnails folder. A failure keeps the old preview; orphan previews
and links are never touched. The final line reports converted, failed
and bytes before and after. The plan counts it with mode=convert; the
legacy gallery stream refuses to attach to a running conversion.
* feat(thumbnails): thumbnail settings in Appearance and Convert outdated in the workspace
System > Appearance gains a Thumbnails surface: format (WebP, JPEG XL,
JPEG), quality and size limit, saved to the server with the settings
revision. JPEG XL is offered only when the server has an encoder, else
the option is disabled with the server's reason (D130); a note says
when this browser cannot show JPEG XL. Saving a new format converts
nothing: the row then says previews keep their old format.
Thumbnail maintenance gains the Convert outdated scope and names the
server's settings instead of its own quality and size fields (D131).
Overview's thumbnail row reads N missing, M outdated, K failed and
offers Convert outdated while previews are outdated.
The workspace decodes a tiny JPEG XL once: where it cannot, cards, the
Library and the inspector cover load the original for a .jxl preview,
and any preview that fails to load falls back to the original. The
viewer and downloads keep using the original (regression test).
README explains enabling JPEG XL; TESTING.md records D130 and D131.
* test(thumbnails): coverage floors for the thumbnail modules and WebP in page workflows
The two new frontend modules enter the coverage baseline (98% lines);
other floors only rise. The visual fixture's preview is WebP and
Appearance has its Thumbnails surface in the System shell check.
* fix(thumbnails): say when the thumbnail settings could not be read
Like Appearance's other server rows, the Thumbnails rows show 'Server
settings could not be read.' while the read failed, instead of only
staying disabled. Firefox exposed the gap: its JPEG XL note arrived
first and changed the row notes the page workflow counted.
* test(thumbnails): accept the legacy preview's spelling a case-insensitive disk finds
On Windows and macOS the '.jpg' lookup finds an older release's
b_thumb.JPG first, so the listed URL spells '.jpg'; it names the same
file there. The test now accepts either spelling and checks the URL
serves that preview.
* fix(thumbnails): address the final review of the thumbnail format work
- ffmpeg writes JPEG XL with -update 1, so a % in a file name is never an
image-sequence pattern, and reads videos as file:<path>. The clear and a
startup sweep remove temp files that interrupted writes left behind.
- Convert outdated converts each group of same-stem files once, from the
first source in the R2 order. An old preview that is already gone counts
as removed, and each file's bytes count once. A current preview is only
kept if it decodes.
- An encoder that fails makes the write detect encoders again once. Another
encoder is used if one is found; with none, the file is written as WebP
and the availability Appearance shows is refreshed.
- Changing the thumbnail format, quality or size while Convert outdated runs
returns 409 busy. If the format still changes underneath, the job stops
without removing anything.
- Legacy preview spellings are matched case-insensitively, so X_thumb.JPG
counts as outdated.
- History's cover uses the same lookup as Images. It serves .jxl only when
Accept lists image/jxl, and otherwise the original or the placeholder.
- A video whose thumbnail the browser cannot show keeps its own element
(Images) or its label (Library).
* fix(thumbnails): keep the new preview, probe encoders only when gone, sweep reused PIDs
- Convert never removes a path that is the preview it just wrote. It
compares the device and inode, or the resolved and normcased paths when
the disk has no inode numbers. This covers x_thumb.JPG on a
case-insensitive disk.
- A JPEG XL encode failure re-runs encoder detection only when the
encoder's binary or module is gone. A "no encoder" result is checked
again on the settings read, on a jxl save, and after 60 s, so one slow
probe no longer turns JPEG XL off until a restart.
- The startup sweep now also removes temp files that carry this process's
PID but predate its start. Containers reuse PIDs.
* fix(history): let the cover ask for JPEG XL when this browser decodes it
Firefox can decode JPEG XL without listing image/jxl in Accept. When the
workspace's probe decodes JPEG XL, it adds jxl=1 to the History cover URL.
The server serves a .jxl preview when that flag is set or when Accept
lists image/jxl. In every other case it falls back as before. The flag
accepts only 0 or 1, and the response stays no-store.
* fix(thumbnails): keep going past the per-batch cap until every preview is made
The missing, rebuild and Convert outdated jobs stopped after
MAX_THUMBNAIL_FILES (10,000) files and said "N more on the next run", but
nothing ever started that next run. The cap now bounds one batch. After
each batch the job plans again, leaving out every file it already worked
on, and continues until nothing is left, the job is cancelled, or a batch
makes no progress. That last case stops on files that fail every time
instead of looping over them.
Activity progress counts against the overall total, and the final line and
the legacy stream's complete frame report every batch. Admission, worker
threads, cancellation and the #316 rules are unchanged. The Thumbnail
maintenance dialog now counts all the work instead of saying "more on the
next run".
Viewer.js maintenance
ComfyUI serves the committed files in web/lib/viewerjs/. Node and npm are only
needed by maintainers and CI. Keep upstream files pristine; application behavior
belongs in web/js/, and theme overrides belong in comfyui-theme.css.
Install and verify
Use Node 24 or newer. From the repository root:
npm ci --prefix tools/vendor --ignore-scripts
npm run --prefix tools/vendor check
npm run --prefix tools/vendor test
node --test tests/js/*.test.js
npx --prefix tools/vendor playwright install chromium
npm run --prefix tools/vendor test:browser
On Linux, use playwright install --with-deps chromium when browser system
libraries are missing. The browser tests use synthetic images and mock the
ComfyUI API boundary; they run production viewer methods and the committed
Viewer.js JS/CSS, without a running ComfyUI instance.
check is read-only and fails if any JS, CSS, license, or provenance file differs
from the installed package. The manifest, lockfile, installed package, and asset
version banners must agree. The lockfile records npm's archive integrity;
provenance.json records the upstream source, package integrity, and SHA-256 of
each copied file. A normal npm ci --ignore-scripts verifies archive integrity.
Full-page workflows, frontend coverage gates, and required merge checks are
documented in TESTING.md. The viewerjs CI check runs both
the fixture tests above and the real-page workflows on every PR.
Update
npm run --prefix tools/vendor update
# Or select a specific stable version:
npm run --prefix tools/vendor update -- --version 1.15.2
The command installs an exact version with lifecycle scripts disabled and copies
dist/viewer.min.js, dist/viewer.min.css, and LICENSE. It writes deterministic
provenance with no timestamps. Repeat the checks above and commit the manifest,
lockfile, and all vendor files together. To regenerate files from the current
pin without changing versions, run npm run --prefix tools/vendor sync.
Automated update PRs
Update vendored Viewer.js checks npm's stable release daily at 07:30 UTC and
supports Actions → Update vendored Viewer.js → Run workflow, with an optional
version. It tests the generated update before opening deps/viewerjs-X.Y.Z.
Existing open or closed PRs for that release are left alone. A failed test does
not publish a branch or PR. Changes require review; the workflow never merges
or approves PRs.
The organization and repository must enable Actions → General → Workflow
permissions → Allow GitHub Actions to create and approve pull requests.
Keep default workflow permissions read-only. Only the update job requests
contents: write, pull-requests: write, and actions: write.
The workflow uses GITHUB_TOKEN; no personal token is needed. Because bot-token
pushes do not normally trigger other workflows, it explicitly dispatches the
read-only Viewer.js vendor and compatibility workflow on the update branch.
Both workflow files must be merged into the default branch before scheduling or
manual dispatch becomes available.
Compatibility checklist
Check gallery grid/list views, navigation across 100-image windows, metadata, slideshow/fullscreen, keyboard navigation, Escape and focus cleanup. Check the admin gallery/filmstrip and tag viewer. On touch devices, test long swipes, short drags, and pinch/rotate gestures. Confirm the ComfyUI theme remains usable.
The gallery keeps its bounded viewer and custom slideshow. Upstream navbar windowing is not a replacement for bounding the supplied image list: native slideshow playback can still preload every supplied original. Review new preloading defaults, gesture behavior, CSS changes, and any adapter use of Viewer.js internal methods before adopting another release.
Shared ComfyAssets test tooling
The exact toolkit commit archive in package.json / package-lock.json supplies
host orchestration and coverage helpers. comfyui-host.mjs is PromptManager's
configuration adapter; keep reusable lifecycle changes in the toolkit source.
The existing npm scripts remain the public maintainer entry points. See
TESTING.md for the managed real-host matrix and update policy.
Shared ComfyAssets browser controls
Prompt Manager (Classic) consumes the same pinned toolkit's browser controls.
The node identifier remains PromptManager; existing workflows, sockets, and
immediate result selection are preserved. PromptManager Text is unchanged.
Committed assets in web/js/shared/toolkit/ work without npm or KikoTools installed.
Maintain common controls in ComfyAssets Toolkit,
then update the exact archive pin and lockfile here. Regenerate using
npm run --prefix tools/vendor sync:toolkit; npm run --prefix tools/vendor check
verifies both Viewer.js and the toolkit without rewriting files. The toolkit
distribution includes its license, source history, archive integrity and per-file
hashes. Do not edit its copied files directly. Classic's controller and layout
remain in web/js/classic-node.js and web/js/classic-node.css.
Run the frontend coverage/browser suites and managed Classic/Nodes 2.0 matrix after updates. Shared modules participate in the frontend coverage gate. Pixaroma's reusable framework inspired this architecture; no Pixaroma code, styles or assets are included.