fix(processing): let Whitebox Dissolve take a grouping field - #1997
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The Dissolve dialog rendered its `dissolve_field` parameter as a second layer picker with a file-path box, so the attribute to dissolve by could not be entered at all. The parameter kind came from geolibre-wasm's manifest, which inferred a parameter's type from its description -- and a column parameter's description describes the data it *indexes*, not the value the user types. "Optional attribute field used to dissolve polygons within groups" read as a polygon layer to open. Bump geolibre-wasm to 1.5.2, which carries three upstream fixes: - opengeos/whitebox-wasm#19 types a `*_field`/`*_attribute` parameter as the column name it is. 54 params across 28 tools stop asking for a file or a checkbox, so the dialog's attribute picker (GeoLibre#1459) now reaches them: Dissolve, join_tables, merge_table_with_csv, the route event family, and every network tool's `one_way_field`. - opengeos/whitebox-wasm#20 makes `dissolve` emit one feature per group. Parts of a group that shared a value but no boundary were separate features, so 290 polygons over 12 values dissolved to 48, not 12. - opengeos/whitebox-wasm#21 decodes GeoJSON/TopoJSON strings as UTF-8. Both parsers read each byte as a Latin-1 code point and re-encoded it, so a non-ASCII attribute gained a layer of mojibake on every pass through a tool. Also correct two comments that cited `join_tables.primary_key_field` as a field-named parameter that is legitimately a dataset input. It was one of the 40 the manifest mistyped, and it is a string now; the sidecar catalog's `classify_objects_svm.class_field` is a live example, so the scalar-string guard those comments explain still earns its place. Fixes #1977
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Included review availability: Your plan provides up to 8 included reviews per hour; 2 remain after this review. 📝 WalkthroughWalkthroughThe pull request adds shared background WASM execution with worker reuse, retry handling, and an inline fallback. It updates processing callers, tests, the ChangesWASM processing execution
Estimated code review effort: 3 (Moderate) | ~25 minutes Merge Risk: ⚪ Minimal · up to The PR fixes Dissolve field selection and prevents long-running WASM processing from freezing the interface; reported verification and checks pass, so no actionable merge-blocking risk remains. Sequence Diagram(s)sequenceDiagram
participant ProcessingClient
participant runWasmToolInBackground
participant wasm-tool.worker
participant geolibre-wasm
ProcessingClient->>runWasmToolInBackground: Submit tool request
runWasmToolInBackground->>wasm-tool.worker: Send request to reusable worker
wasm-tool.worker->>geolibre-wasm: Run WASI tool
geolibre-wasm-->>wasm-tool.worker: Return result or error
wasm-tool.worker-->>runWasmToolInBackground: Return response
runWasmToolInBackground-->>ProcessingClient: Resolve or reject result
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No inline comments to post — the diff is clean and each change checks out against the live catalog data. Code reviewBugs: None found. This PR only bumps Security: No concerns — no new input handling, no secrets, dependency bump is to the project's own published package with a version-matched integrity hash in Performance: N/A — no code paths changed in this repo; the dissolve grouping fix (fewer emitted features per group) is a correctness improvement, not a perf regression. Confidence: high. Quality: The two updated comments ( CLAUDE.md: The |
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In `@packages/processing/package.json`:
- Line 37: Run the Whitebox catalog generator after updating the geolibre-wasm
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The WASI runner is a single synchronous `wasi.start()` with no yield points, so running it on the main thread freezes the whole UI -- no repaint, no input -- for as long as the tool takes. Dissolving the 290-polygon layer from #1977 takes ~60s, and a stall probe measured 58,573 ms without a single animation frame: the app looks hung. wasm-convert.ts already routed its tiling calls to a one-shot Worker for exactly this reason, and its worker script is generic. Lift that machinery into `wasm-tool-runner.ts`, rename the script to `wasm-tool.worker.ts` now that it serves both callers, and route `runWhiteboxToolWasm` through it. One implementation, so the two paths cannot drift. This freeze predates the dissolve fix -- every WASM tool blocked the main thread -- but a long-running Dissolve was unreachable until the grouping field became typeable, so it surfaces there first. Measured on the same run: max main-thread stall drops from 58,573 ms to 756 ms, and the output is unchanged at 12 features.
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Code reviewBugs
Security
Performance
Quality
CLAUDE.md
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- reuse WASM tool workers instead of discarding each after one run. A worker compiles the ~23 MB geolibre-cli.wasm in its own module scope, and the main thread's copy is not shared with it, so one worker per run made every run pay that again. Invisible next to a minutes-long tiling job, the only caller before this PR, but not next to the many Whitebox tools that finish in well under a second. An idle worker is taken when there is one and a new one spawned otherwise, so concurrent runs still overlap rather than serializing behind a single shared worker; a worker that fails at the worker level is terminated rather than parked, and listeners are removed so a reused worker does not accumulate them. Adds `releaseIdleWasmToolWorkers()` to free the warm workers, which test teardown needs so a parked worker is not handed to the next case. - fix the stale `wasm-convert.worker.ts` reference in the afterEach comment left by this PR's rename.
Code reviewBugs
Security
Performance
Quality
CLAUDE.md
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- guard reuse of a parked worker with an acknowledgement. A worker killed out of band fires no `error` event and silently swallows `postMessage`, and this module deliberately puts no timeout on the run itself, so reusing one that died while idle would have left the run pending forever with nothing shown to the user. The worker now acks on receipt, before starting the run that blocks its thread; a reused worker that does not ack within 10s is terminated, replaced, and the request re-sent. Only reused workers are watched — a freshly spawned one has not had time to die, reports itself through `error`, and its module-graph startup can outlast any sensible ack window in a dev server. A false positive costs a respawn, never a failed run.
Code reviewI reviewed the whole diff: the doc-comment corrections in Bugs
Security
Performance
Quality
CLAUDE.md
No inline comments posted — I didn't find anything I'm confident enough in to flag at the code level. The worker-pool refactor is well-reasoned, the tradeoffs (ack timeout window, single idle worker, no run-level timeout) are documented in the code itself, and the accompanying test suite ( |
Summary
The Whitebox Dissolve dialog rendered its
dissolve_fieldparameter as a second layer picker with a file-path box, so the attribute to dissolve by could not be entered at all:The kind came from
geolibre-wasm's manifest, which inferred a parameter's type from its description. A column parameter's description describes the data it indexes, not the value the user types, so "Optional attribute field used to dissolve polygons within groups" read as a polygon layer to open.Bumps
geolibre-wasmto 1.5.2, which carries three upstream fixes:*_field/*_attributeparameter types as the column name it is. 54 params across 28 tools stop asking for a file or a checkbox, so the dialog's attribute picker (GeoLibre#1459) finally reaches them: Dissolve,join_tables,merge_table_with_csv, the route-event family, and every network tool'sone_way_field.dissolveemits one feature per group. Parts of a group that shared a value but no boundary were emitted separately, so 290 polygons over 12 values dissolved to 48 rather than 12.Released as geolibre-rust v1.5.2.
Also corrects two comments that cited
join_tables.primary_key_fieldas a field-named parameter that is legitimately a dataset input. It was one of the ~40 the manifest mistyped and is a string now; the sidecar catalog'sclassify_objects_svm.class_fieldis a live example, so the scalar-string guard those comments explain still earns its place.Also: the app froze while Dissolve ran
Reported while testing this branch. The WASI runner is a single synchronous
wasi.start()with no yield points, so on the main thread it freezes the whole UI — no repaint, no input — for the tool's entire duration. A stall probe over the reporter's dataset measured 58,573 ms without a single animation frame. The app looks hung.wasm-convert.tsalready routed its tiling calls to a one-shot Worker for exactly this reason, and its worker script's own comment names the problem: "on the main thread a long job freezes the whole UI for its duration". The Whitebox toolbox path never got the same treatment. So: lift that machinery intowasm-tool-runner.ts, rename the script towasm-tool.worker.tsnow that it serves both callers, and routerunWhiteboxToolWasmthrough it — one implementation, so the two cannot drift.Measured on the same run, same dataset:
Note this freeze predates the dissolve fix: every WASM tool blocked the main thread. A long-running Dissolve was simply unreachable until the grouping field became typeable, so it surfaces there first. Happy to split it into its own PR if you would rather keep this one to the manifest bump.
Verification
Driven in the browser against the reporter's own
OTEX-Cher-WGS.geojson(290 communes, 12OTEXvalues), in light and dark themes:dissolve_fieldis labeledstringand renders the "Select a field" dropdown listing the layer's columns (OTEX,ID,NOM_COMM, ...) instead of a layer pickerOTEXsucceeds and adds a layer whose attribute table reports 12 features (was 48)Also checked:
npm run test:frontend— 6364 tests, 6363 pass, 0 fail, identical to the pre-bump baseline on this branch. That suite includes theMAX_VECTOR_PMTILES_ZOOMmirror test, which still holds (vector_to_pmtiles' manifest is byte-identical across the bump).node scripts/gen-whitebox-menu-catalog.mjs— regenerated, no diff. No tools were added or removed, so the menu catalog and the bundled snapshot are unchanged.NON_DISTANCE_NAMESneeds no update: diffing the 1.5.1 and 1.5.2 manifests shows no parameter became adouble. The only changes are 43 dataset inputs and 11 bools becoming strings, exactly the intended 54 across 28 tools, with nothing else moving.pre-commit run --files <changed>— passed, includingnpm build.Fixes #1977
Summary by CodeRabbit
Improvements
Documentation