fix(webview): render expanded task header text as markdown with consistent scrollbar - #1763
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Source excerpt: Register browser-owned stories in `playwright/gallery/stories.tsx` under a stable, descriptive ID and mount them with `mount(storyId, props)`.📄 CodeRabbit inference engine (webview-ui/AGENTS.md) Files:
Source excerpt: Keep behavioral assertions in Vitest.📄 CodeRabbit inference engine (webview-ui/AGENTS.md) Files:
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📝 SummarySummary by CodeRabbit
WalkthroughExpanded task text now renders as Markdown with clickable context mentions and soft line breaks. MarkdownBlock also validates relative file links. Unit and visual tests cover rendering, interactions, and scrolling. ChangesTask Header Markdown
Priority: ➖ Normal Estimated code review effort: 4 (Complex) | ~45 minutes Change: Bug fix · Severity of issue fixed: Medium Sequence Diagram(s)sequenceDiagram
actor User
participant TaskHeader
participant MarkdownBlock
participant postMessage
User->>TaskHeader: Expand task header
TaskHeader->>MarkdownBlock: Render task text with mentions and breaks enabled
MarkdownBlock-->>TaskHeader: Render markdown and clickable mention spans
User->>MarkdownBlock: Click a mention span
MarkdownBlock->>postMessage: Post openMention with the mention value
Merge Risk: 🟡 Moderate · up to Markdown links can open files outside the workspace. Merge after the extension-side containment safeguard is deployed, as the PR requires. Caution Pre-merge checks failedPlease resolve all errors before merging. Addressing warnings is optional.
❌ Failed checks (1 error)
✅ Passed checks (7 passed)
Full details: Security BoundariesExplanation The changed task-header path trusts unvalidated markdown link targets. Resolution Enforce the markdown-link boundary before merging this webview change. Either restrict the webview to validated workspace-relative links after URL decoding, or make the extension
✨ Finishing Touches🧪 Generate unit tests (beta)
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- 🪄 Fix CodeRabbit comments on this PR
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Inline comments:
In `@webview-ui/playwright/gallery/stories.tsx`:
- Line 216: In the TaskHeader story setup, replace the raw provider identifier
in apiConfiguration with providerIdentifiers.anthropic from `@roo-code/types`;
load the constant alongside the existing dynamically imported modules.
In `@webview-ui/src/components/chat/__tests__/TaskHeader.visual.tsx`:
- Around line 21-27: In the visual test, remove behavioral assertions for
list-item counts, mention content, line breaks, and styling already covered by
`TaskHeader.spec.tsx` and `MarkdownBlock.spec.tsx`. Keep the heading visibility
and scroll-overflow checks to establish deterministic screenshot state, and
retain the scroll-box existence check using a retrying Playwright assertion.
In `@webview-ui/src/components/common/MarkdownBlock.tsx`:
- Line 99: Replace the new any annotations in prepareMentions, rehypeMentions,
and rehypeStripBreakNewlines with mdast/hast visitor types. Use mdast Nodes for
mdast nodes, and hast Root, Text, Element, and Parents for the corresponding
tree, node, and parent parameters; keep visitor accesses and parent.children
mutations type-safe without introducing any.
- Around line 585-591: Update the file-link validation in MarkdownBlock so
markdown-sourced links cannot pass absolute paths or file:// URLs to openFile;
retain rejection of parent-directory segments, and use workspace containment
with symlink resolution if an established helper is available.
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⛔ Files ignored due to path filters (5)
pnpm-lock.yamlis excluded by!**/pnpm-lock.yamlwebview-ui/src/components/chat/__tests__/__screenshots__/task-header-markdown-dark.pngis excluded by!**/*.png,!webview-ui/**/__screenshots__/**webview-ui/src/components/chat/__tests__/__screenshots__/task-header-markdown-high-contrast-light.pngis excluded by!**/*.png,!webview-ui/**/__screenshots__/**webview-ui/src/components/chat/__tests__/__screenshots__/task-header-markdown-high-contrast.pngis excluded by!**/*.png,!webview-ui/**/__screenshots__/**webview-ui/src/components/chat/__tests__/__screenshots__/task-header-markdown-light.pngis excluded by!**/*.png,!webview-ui/**/__screenshots__/**
📒 Files selected for processing (7)
webview-ui/package.jsonwebview-ui/playwright/gallery/stories.tsxwebview-ui/src/components/chat/TaskHeader.tsxwebview-ui/src/components/chat/__tests__/TaskHeader.spec.tsxwebview-ui/src/components/chat/__tests__/TaskHeader.visual.tsxwebview-ui/src/components/common/MarkdownBlock.tsxwebview-ui/src/components/common/__tests__/MarkdownBlock.spec.tsx
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📓 Path-based instructions (6)
Require regression coverage at the lowest valid harness with behavior-focused assertions, including relevant negative, error, false/unset, and boundary cases.
⚙️ CodeRabbit configuration file
Files:
webview-ui/src/components/chat/__tests__/TaskHeader.visual.tsxwebview-ui/src/components/chat/__tests__/TaskHeader.spec.tsxwebview-ui/src/components/common/__tests__/MarkdownBlock.spec.tsx
Check strict typing and exhaustive behavior across normal, boundary, error, cancellation, retry, and compatibility paths.
⚙️ CodeRabbit configuration file
Files:
webview-ui/playwright/gallery/stories.tsxwebview-ui/src/components/chat/__tests__/TaskHeader.visual.tsxwebview-ui/src/components/chat/__tests__/TaskHeader.spec.tsxwebview-ui/src/components/common/__tests__/MarkdownBlock.spec.tsxwebview-ui/src/components/chat/TaskHeader.tsxwebview-ui/src/components/common/MarkdownBlock.tsx
Check React state and effect dependencies, cleanup, accessibility, i18n, and light/dark theme behavior.
⚙️ CodeRabbit configuration file
Files:
webview-ui/package.jsonwebview-ui/playwright/gallery/stories.tsxwebview-ui/src/components/chat/__tests__/TaskHeader.visual.tsxwebview-ui/src/components/chat/__tests__/TaskHeader.spec.tsxwebview-ui/src/components/common/__tests__/MarkdownBlock.spec.tsxwebview-ui/src/components/chat/TaskHeader.tsxwebview-ui/src/components/common/MarkdownBlock.tsx
Act as an adversarial second-opinion reviewer.
⚙️ CodeRabbit configuration file
Files:
webview-ui/package.jsonwebview-ui/playwright/gallery/stories.tsxwebview-ui/src/components/chat/__tests__/TaskHeader.visual.tsxwebview-ui/src/components/chat/__tests__/TaskHeader.spec.tsxwebview-ui/src/components/common/__tests__/MarkdownBlock.spec.tsxwebview-ui/src/components/chat/TaskHeader.tsxwebview-ui/src/components/common/MarkdownBlock.tsx
Source excerpt: Register browser-owned stories in `playwright/gallery/stories.tsx` under a stable, descriptive ID and mount them with `mount(storyId, props)`.
📄 CodeRabbit inference engine (webview-ui/AGENTS.md)
Files:
webview-ui/playwright/gallery/stories.tsx
Source excerpt: Keep behavioral assertions in Vitest.
📄 CodeRabbit inference engine (webview-ui/AGENTS.md)
Files:
webview-ui/src/components/chat/__tests__/TaskHeader.visual.tsx
🪛 ESLint
webview-ui/playwright/gallery/stories.tsx
[error] 216-216: Use providerIdentifiers.anthropic instead of the raw provider identifier "anthropic".
(zoo/no-raw-provider-identifiers)
🔇 Additional comments (4)
webview-ui/package.json (1)
70-73: LGTM!Also applies to: 83-83
webview-ui/src/components/common/__tests__/MarkdownBlock.spec.tsx (1)
1-18: LGTM!Also applies to: 228-776
webview-ui/src/components/chat/TaskHeader.tsx (1)
32-33: LGTM!Also applies to: 168-172, 333-333, 339-339
webview-ui/src/components/chat/__tests__/TaskHeader.spec.tsx (1)
333-507: LGTM!
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- stories.tsx: use providerIdentifiers.anthropic instead of the raw provider identifier string (zoo/no-raw-provider-identifiers) - TaskHeader.visual.tsx: keep the visual test to state setup (expanded heading wait + overflow check) and the screenshot; the behavioral assertions (list/mention/br counts, scrollable class) are already covered by TaskHeader.spec.tsx and MarkdownBlock.spec.tsx
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Automated review findings — addressed (3a92bd8)
Local gates on head Merge-order note stands: #1762 before this PR (defense-in-depth; the :591 finding hinges on it). |
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2 participants
Part 2 of the 2-way split of #1257 (supersedes its webview-side half; extension-side unit: #1762). Content source of record:
99025b1fb..6c1eee6d3(the head of #1257).Context
#1257 was red on
platform-unit-test→verify:coverage-contract: that check compared the extension coverage population against a hardcoded baseline (469 files / 30,229 lines) and #1257's head predated #1644, which replaced the hardcoded baseline with the sharedcoverage-contract.mjsmerge. This branch is based on current main (f78064753), which already contains #1644. This unit is webview-only, so it changes no extension coverage population at all.Merge after the extension-side unit (#1762) so the
openFileworkspace-containment check is deployed before the webview starts sendingfromMarkdown: truerequests. (Both PRs are independent — no shared files — the ordering is defense-in-depth, not a merge requirement. #1762's containment now also covers percent-encoded and symlinked paths, which is what this unit's markdown links rely on for absolute/file://targets and encoded link targets.)What this unit does
Renders the expanded task-header text as markdown (GFM + math + katex) with the same link/mention hardening as message markdown:
webview-ui/src/components/common/MarkdownBlock.tsx(+309/−5): shared markdown pipeline (remark-breaks/remark-parse/unified added towebview-uideps + lockfile), markdown-sourced link validation (traversal rejected before posting, external URLs inert, relative paths taggedfromMarkdown: true), mention/code-region maskingwebview-ui/src/components/chat/TaskHeader.tsx(+9/−3): expanded header uses the markdown pipeline with a consistent scrollbarwebview-ui/playwright/gallery/stories.tsx(+62) +TaskHeader.visual.tsx(+35, new): Playwright visual regression coverage with 4 binary baselines (excluded from the a+d arithmetic, listed here):task-header-markdown-dark.png,task-header-markdown-high-contrast-light.png,task-header-markdown-high-contrast.png,task-header-markdown-light.pngMarkdownBlock.spec.tsx(+559/−2),TaskHeader.spec.tsx(+175, new file)Fixes #1256.
Automated review findings (addressed in commit 3a92bd8)
providerIdentifiers.anthropicfrom@roo-code/types(same string value, so the visual baselines are unaffected).TaskHeader.spec.tsxandMarkdownBlock.spec.tsx. The visual test now establishes only the rendered state (expanded heading, overflow) before the screenshot.anytyping (Trivial) — skipped deliberately:webview-uidoes not declare mdast/hast type packages, and under pnpm's strictnode_moduleslayout a type-only import of a transitive dependency requires newpackage.json+pnpm-lock.yamlentries, which is out of proportion for this security-focused PR. Theanyusages are confined to self-contained react-markdown plugin closures.file://links — this unit's links are all taggedfromMarkdown: true; the extension-side containment in fix(webview-message-handler): enforce workspace containment for markdown-sourced openFile requests #1762 (merged first) is the enforcement point. See the thread reply on that comment.Line budget (standalone vs base f780647)
1188 a+d / 8 files (+ 4 binary baselines). This unit carries the originally approved webview-side scope of #1257 — its body documented the line budget and the explicit exception for exactly this content; 736 of the lines are spec files and 122 lines are Playwright visual coverage. The merge-gate CI caps (≤500 changed executable lines, ≤400 valid mutants) are met per unit per the preflight digest below.
Fidelity (machine-verified)
zdt split verify --contract contract-b.json --worktree <wt> --head 3a92bd884→ all content checks PASS: every changed line is a content subset of source99025b1fb..6c1eee6d3(10 files byte-identical;webview-ui/package.jsonandpnpm-lock.yaml3-way merged against current main, clean, zero conflicts). The only reported violation is the documented budget-hard deviation (recorded in the unit contract'sdesign.deviations). The two CR-touched files (stories.tsx,TaskHeader.visual.tsx) are sanctioned by the contract'sallowNewwith the change documented indesign.deviations.Mutation gate (local preflight)
webview(3a92bd8): 129 valid / 126 killed / 3 timeout / 0 survived / 0 noCoverage → PASS (caps: ≤500 changed executable lines, ≤400 valid mutants)Changed-line coverage (local, this head)
zdt coverage changed --worktree <wt> --base f78064753(vitest v8 coverage ofMarkdownBlock.spec.tsx+TaskHeader.spec.tsx) → 73 covered / 0 uncovered on every measurable changed production line (MarkdownBlock.tsx73,TaskHeader.tsx9 changed lines are import/comment lines, 0 executable uncovered). Two documented measurement exceptions:--allow-uncovered MarkdownBlock\.tsx): thereturnbodies of guards that their own Stryker directives document as unreachable in well-formed input (non-numeric remark offsets, missing visit index/parent, unresolvable placeholder index). Proof: the mutation preflight digest above (0 noCoverage, 0 survived) with those directives in place.pnpm-lock.yaml+webview-ui/package.jsonare manifest/lockfile data, andstories.tsx+TaskHeader.visual.tsxare executed only by the Playwright visual job (CIwebview-visualgreen on this head). The zdt gate counts them asunmeasurable; this is recorded as a measurement-design deviation in the unit contract.Verification (local, this head)
pnpm --dir webview-ui exec vitest run src/components/common/__tests__/MarkdownBlock.spec.tsx src/components/chat/__tests__/TaskHeader.spec.tsx→ 79/79 passedpnpm --dir webview-ui exec eslint --max-warnings=0 <changed src files + stories.tsx>→ clean (CI lint scope iseslint src)check-types+ full lint passed