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chore(quill): revert unused HighlightedRange overlay and per-bar hatch - #70252

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chore(quill): revert unused HighlightedRange overlay and per-bar hatch#70252
sampennington wants to merge 6 commits into
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@sampennington sampennington commented Jul 11, 2026

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Problem

The HighlightedRange overlay and the per-bar bars[i].hatch fill were added to quill-charts in #70223 as step 1 of the shared Sparkline → quill migration, to close capability gaps for the Logs/Tracing volume-chart consumers.

The plan for those consumers has since changed — they will move to quill's TimeSeriesBarChart in a later phase, not the Sparkline preset. Nothing in frontend/ or products/ renders either capability today, so it is merged-but-unused public API plus its snapshot baselines.

Changes

Revert #70223:

  • Remove the HighlightedRange overlay — component, tests, stories, and the package export.
  • Remove the per-bar hatch?: boolean field on Series.bars[i] and its canvas render path.
  • Drop the corresponding charts AGENTS.md docs and storybook snapshot baselines.

The pre-existing hatch machinery (stroke.partial dashes, bars.track tracks) is untouched. When that migration reaches Logs and Tracing, the overlay gets rebuilt against the real TimeSeriesBarChart requirements.

Note

The in-flight sparkline PR #70231 does not depend on this — it is based on master and the true-sparkline path uses none of these capabilities. #70236 (Sparkline bar/series/tooltip) is kept because #70231 consumes it.

How did you test this code?

I (Claude) verified by grep that nothing in frontend/ or products/ imports the quill HighlightedRange overlay or sets bars[i].hatch; the only app highlightedRange usages flow through the legacy Chart.js Sparkline. The revert applied with no conflicts and leaves no dangling references. CI regenerates storybook snapshots for the removed stories. No manual UI testing, since nothing rendered these.

Automatic notifications

  • Publish to changelog?
  • Alert Sales and Marketing teams?

Docs update

Charts AGENTS.md is updated in this PR to drop the removed hatch and HighlightedRange references. No user-facing docs are affected.

🤖 Agent context

Autonomy: Human-driven (agent-assisted)

Sam directed this. While working through the shared Sparkline → quill migration with PostHog Code (Claude), we concluded the Logs/Tracing "sparklines" are really full time-series bar charts and belong on TimeSeriesBarChart, not the Sparkline preset. That pushed the relevant migration phase out and left #70223's HighlightedRange overlay and per-bar hatch as merged-but-unused capability, so we revert it now and rebuild later against clearer requirements.

Before reverting, I (Claude) confirmed there are no consumers of either capability and kept #70236 because #70231 consumes it. An internal migration handover doc was drafted and then dropped from this PR to keep it a focused revert. No repo skills were invoked.


Created with PostHog Code

@sampennington sampennington added skip-agent-review Save $$$, skip auto agent reviews (Greptile) — use for trivial or chore PRs skip-inkeep-docs Use this label to skip an Inkeep docs PR in posthog.com labels Jul 11, 2026 — with PostHog
@sampennington sampennington self-assigned this Jul 11, 2026
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🤖 CI report

⚠️ Bundle size — 🔺 +374 B (+0.0%)

Uncompressed size of every built .js bundle, compared against the base branch.

Total: 68.09 MiB · 🔺 +374 B (+0.0%)

No file changed by more than 1000 B.

Posted automatically by build-bundle-size-report · uncompressed bytes from dist-report

Eager graph — within budget

How much code each root ships on the eager path — downloaded and parsed before the surface is interactive. Measured from the esbuild output chunks (post-tree-shake, static imports only); lazy import() / React.lazy chunks are not counted.

Root Eager (shipped) Δ vs base Budget
entry (logged-out pages, app bootstrap)
src/index.tsx
1.21 MiB · 22 files no change ███░░░░░░░ 28.2% of 4.29 MiB
authenticated shell (every logged-in page)
src/scenes/AuthenticatedShell.tsx
8.10 MiB · 2,974 files no change █████████░ 87.5% of 9.25 MiB

🟢 node_modules/monaco-editor/ stays out of src/index.tsx
🟢 src/lib/components/ActivityLog/describers stays out of src/index.tsx
🟢 [object Object] stays out of src/index.tsx
🟢 [object Object] stays out of src/index.tsx
🟢 node_modules/monaco-editor/ stays out of src/scenes/AuthenticatedShell.tsx
🟢 src/lib/components/ActivityLog/describers stays out of src/scenes/AuthenticatedShell.tsx
🟢 [object Object] stays out of src/scenes/AuthenticatedShell.tsx
🟢 [object Object] stays out of src/scenes/AuthenticatedShell.tsx

Largest files eagerly shipped from src/index.tsx
Size File
126.8 KiB ../node_modules/.pnpm/react-dom@18.3.1_react@18.3.1/node_modules/react-dom/cjs/react-dom.production.min.js
24.6 KiB ../node_modules/.pnpm/buffer@6.0.3/node_modules/buffer/index.js
6.3 KiB ../node_modules/.pnpm/react@18.3.1/node_modules/react/cjs/react.production.min.js
4.5 KiB ../node_modules/.pnpm/@jspm+core@2.1.0/node_modules/@jspm/core/nodelibs/browser/process.js
3.9 KiB ../node_modules/.pnpm/scheduler@0.23.2/node_modules/scheduler/cjs/scheduler.production.min.js
1.4 KiB ../node_modules/.pnpm/base64-js@1.5.1/node_modules/base64-js/index.js
1.3 KiB src/RootErrorBoundary.tsx
912 B ../node_modules/.pnpm/ieee754@1.2.1/node_modules/ieee754/index.js
789 B src/scenes/ChunkLoadErrorBoundary.tsx
668 B src/index.tsx
Largest files eagerly shipped from src/scenes/AuthenticatedShell.tsx
Size File
278.2 KiB ../node_modules/.pnpm/posthog-js@1.399.2/node_modules/posthog-js/dist/rrweb.js
266.9 KiB ../node_modules/.pnpm/@posthog+icons@0.37.4_react-dom@18.3.1_react@18.3.1__react@18.3.1/node_modules/@posthog/icons/dist/posthog-icons.es.js
234.9 KiB src/taxonomy/core-filter-definitions-by-group.json
221.5 KiB ../node_modules/.pnpm/posthog-js@1.399.2/node_modules/posthog-js/dist/module.js
164.0 KiB src/queries/validators.js
154.2 KiB ../node_modules/.pnpm/re2js@0.4.1/node_modules/re2js/build/index.esm.js
126.8 KiB ../node_modules/.pnpm/react-dom@18.3.1_react@18.3.1/node_modules/react-dom/cjs/react-dom.production.min.js
105.9 KiB src/lib/api.ts
93.3 KiB ../node_modules/.pnpm/prosemirror-view@1.40.1/node_modules/prosemirror-view/dist/index.js
90.6 KiB ../node_modules/.pnpm/@tiptap+core@3.20.6_@tiptap+pm@3.20.6/node_modules/@tiptap/core/dist/index.js

Posted automatically by check-eager-graph · sizes are eager output bytes (shipped, post-tree-shake) from the esbuild metafile · part of #32479

⚠️ Dist folder size — 🔺 +1.3 KiB (+0.0%)

Total size of the built frontend/dist folder (all assets), compared against the base branch.

Total: 1283.93 MiB · 🔺 +1.3 KiB (+0.0%)

Playwright — all passed

All tests passed.

View test results →

Revert #70223. The HighlightedRange overlay and the per-bar `bars[i].hatch` fill were added ahead of migrating the Logs/Tracing sparkline consumers, but that migration is being reframed onto TimeSeriesBarChart and has not started, so nothing renders either capability today. Removing the unused code now; it will be rebuilt against real requirements during the population-B migration. #70231 does not depend on this, and the pre-existing hatch machinery (stroke.partial dashes, bars.track) is untouched.

Generated-By: PostHog Code
Task-Id: 2b83bd23-a83a-4c91-982e-b1e0e9c356ee
Capture the two-population reframe (true sparklines vs charts-in-disguise), the consumer split, the needsLegacyFeatures framing, the maximumIndicator/tooltipRowCutoff/hoverColor decisions, and the step-4 direction (population B → TimeSeriesBarChart). Records why #70223's HighlightedRange overlay and per-bar hatch were reverted here and are deferred to the population-B migration.

Generated-By: PostHog Code
Task-Id: 2b83bd23-a83a-4c91-982e-b1e0e9c356ee
Run oxfmt on docs/internal/quill-migration-sparkline.md — aligns the population-B table columns to satisfy the markdown format check.

Generated-By: PostHog Code
Task-Id: 2b83bd23-a83a-4c91-982e-b1e0e9c356ee
@sampennington
sampennington force-pushed the posthog-code/revert-quill-highlightedrange-hatch branch from 9712cd1 to 7e86be6 Compare July 12, 2026 09:21
Generated-By: PostHog Code
Task-Id: 7f697c76-e9e2-4af6-93ff-c9fc9f90e932
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Docs from this PR will be published at posthog.com

Project Deployment Preview Updated (UTC)
posthog.com 🤷 Unknown Preview Jul 12, 2026, 9:22 AM

Preview will be ready in ~10 minutes. Click Preview link above to access docs at /handbook/engineering/

@sampennington
sampennington marked this pull request as ready for review July 12, 2026 09:29
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🦔 Hogbox preview · ❌ build failed

The preview didn't come up for commit 2ecee24. See the build log for the failing step. It'll retry on the next push.

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pr-assigner-resolver-posthog Bot requested a review from a team July 12, 2026 09:30
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greptile-apps Bot commented Jul 12, 2026

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Reviews (1): Last reviewed commit: "chore(quill): fix MD018 heading lint in ..." | Re-trigger Greptile

Comment on lines +1101 to +1110
const hatch = dashedFrom !== null || dashedTo !== null ? getHatchPattern(ctx, series.color) : null

for (const bar of bars) {
if (bar.width <= 0 || bar.height <= 0) {
continue
}
const useHatch =
(dashedFrom !== null && bar.dataIndex >= dashedFrom) ||
(dashedTo !== null && bar.dataIndex <= dashedTo) ||
!!series.bars?.[bar.dataIndex]?.hatch
// The hatch keeps the bar's own resolved color (per-bar override included) so a
// flagged bar still reads as belonging to its series. Pattern lookups are cached.
const barColor = barColorAt(series, bar.dataIndex)
ctx.fillStyle = useHatch ? getHatchPattern(ctx, barColor) : makeBarFill(ctx, barColor, bar, fillStyle)
hatch !== null &&
((dashedFrom !== null && bar.dataIndex >= dashedFrom) || (dashedTo !== null && bar.dataIndex <= dashedTo))
ctx.fillStyle = useHatch ? hatch : makeBarFill(ctx, barColorAt(series, bar.dataIndex), bar, fillStyle)

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P2 Partial Hatch Ignores Bar Color

When a series uses stroke.partial together with bars[i].color, the hatched bars now all use series.color instead of the resolved per-bar color. That makes partial bars with color overrides render in the wrong color while non-hatched bars in the same series still use their overrides.

Comment thread docs/internal/quill-migration-sparkline.md Outdated
Generated-By: PostHog Code
Task-Id: 7f697c76-e9e2-4af6-93ff-c9fc9f90e932
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trunk-io Bot commented Jul 12, 2026

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View Full Report ↗︎Docs

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Visual changes approved by @sampennington — baseline updated in 2ecee24.

View this run in PostHog

8 removed.

0 updated, 8 removed
Run: 6ea29762-fb9f-4b3d-8980-576b6313ab41

Co-authored-by: sampennington <56024559+sampennington@users.noreply.github.com>
@sampennington sampennington added the stamphog Request AI approval (no full review) label Jul 12, 2026
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Note

🤖 stamphog reviewed 2ecee24cf0b23ad3c40821b899f755b1385fb934 — verdict: REFUSED

The diff isn't a clean revert: it also rewrites the pre-existing stroke.partial hatch color logic to always use the series-level color instead of the per-bar resolved color, a real rendering regression for bars combining stroke.partial with per-bar color overrides — flagged unresolved by Greptile and contradicting the PR's own claim that pre-existing hatch machinery is untouched.

  • Author wrote 100% of the modified lines and has 431 merged PRs in these paths (familiarity STRONG).
  • 👍 on the PR from greptile-apps[bot], hex-security-app[bot].
  • Unresolved Greptile P2 comment on packages/quill/packages/charts/src/core/canvas-renderer.ts: hatched stroke.partial bars now use series.color instead of the per-bar resolved color, so bars with a color override render wrong when hatched — this is still present in the diff, not just historical.
  • PR description states the pre-existing hatch machinery (stroke.partial, bars.track) is untouched, but the diff changes its color-resolution behavior — undisclosed behavior vs. stated intent.
Gate mechanics and policy version
Gate Result
prerequisites all clear
deny-list no deny categories matched
size 208L, 7F substantive, 360L/10F incl. docs/generated/snapshots — within ceiling
tier T1-agent / T1d-complex (360L, 10F, two-areas, chore)
stamphog 2.0.0b3 .stamphog/policy.yml @ 6814fb2 · reviewed head 2ecee24

Updated in place — this replaces 1 earlier stamphog review(s) on this PR.

@stamphog stamphog Bot removed the stamphog Request AI approval (no full review) label Jul 12, 2026
@sampennington sampennington added the stamphog Request AI approval (no full review) label Jul 12, 2026 — with PostHog
@stamphog stamphog Bot removed the stamphog Request AI approval (no full review) label Jul 12, 2026
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