Timeline: add Dependabot event stories (Phase 2) by janmaarten-a11y · Pull Request #8071 · primer/react

janmaarten-a11y · 2026-06-28T07:01:59Z

Summary

Adds Storybook Features stories that recreate GitHub's live Dependabot alert timeline events using the Primer Timeline component and its compositional slots. This is the Dependabot surface of Phase 2 of the Timeline events effort (github/primer#6663). The Issues surface already landed in #8070; the PR and other surfaces will follow separately.

All examples live in a single new file, Timeline.dependabot.features.stories.tsx (+ a .module.css), exported under the title Components/Timeline/Events/Dependabot — one story export per event group.

The 5 event groups (23 variants total)

Group	Variants	Badge
`EventOpened`	3 — Opened / from PR / from push	`shield` on solid `success`
`EventFixed`	3 — Fixed / via PR / via push	`shield-check` on solid `done`
`EventDismissed`	8 — 5 manual reasons (+ optional note) + 3 auto (rule-based, incl. from PR/push)	bare `shield-slash` (muted icon)
`EventReopened`	5 — manual reopen + reintroduced ×source + auto-reopened	`sync` on solid `success`
`EventDismissalRequest`	4 — Requested / Approved / Denied / Cancelled	bare badge + colored icon

Source of truth

These stories were recreated from the live, server-rendered ERB ViewComponents in app/components/dependabot_alerts/timeline_items/ in github/github. Each component's render markup and the Primer component arguments it passes were read directly and translated faithfully into Primer React; the source file is cited inline next to each event.

Notably, Dependabot's alert timeline has no React implementation yet — it is 100% ERB. github/github-ui ships only Catalyst custom-element controllers (dependabot-alert-*-element.ts) for table-row / load-all / dismissal interactions, not the timeline event rows. So beyond documenting the design system, these stories double as a useful reference for that team's eventual ERB→React migration.

We verified the live render path per component rather than trusting the Figma audit blindly. The most important catch: the dismissal request/review events use a newer inline erb_template (include ViewComponent::InlineTemplate), which is the active render — the older sibling *.html.erb sidecars are dormant dead code. The Figma audit reflected the dormant sidecar (no-avatar, person/check-circle badges); the live inline template renders a circle user avatar with status-driven icons. Live won.

We were also careful about the Primer badge mechanic: events whose ERB sets bg: :*_emphasis (Opened/Fixed/Reopened) correctly use a solid Timeline.Badge variant, while events whose ERB sets only color: :* with no bg: (Dismissed, Dismissal Request/Review/Cancelled) render as a bare default badge with a colored icon — not a solid-color badge.

Slots used (Phase 1 slots)

Inline actor avatar in Timeline.Body for badge-row events — a square avatar + bold link + (bot) Label for Dependabot-authored events (ActorComponent :dependabot mode), and a circle 20px user avatar + bold link for user-authored events.
Timeline.Actions (right-controls slot, added in Add Timeline.Actions sub-component #7886) for the Dismissal Requested "Review request" button — the live inline template renders a float-right DismissalReviewDialogComponent, whose visible control is a single small primary button that opens the approve/deny dialog.
Dependabot-specific bits composed from primitives: the square bot avatar, the (bot) tag (Label variant="secondary", mirroring ERB bot_identifier_tag), and the inline push-pill SHA (PushLinkComponent → a <code>-wrapped Link styled as the subtle light-blue GitHub SHA pill). Push-pills are part of the sentence body text in the live PushLinkComponent, so they correctly stay inline in Timeline.Body, not in Timeline.Actions.

Scope & conventions

Every story is wrapped in a file-scoped FeatureFlags decorator enabling primer_react_timeline_list_semantics (the future-state <ol>/<li> DOM; refs Timeline: Use list semantics for screen reader navigation #7910).
Storybook-only by design. These are intentionally not wired into components-json / the primer.style docs page (not added to Timeline.docs.json or build.ts) — individual timeline events are not consumer-facing components.
The future event-category data-* filtering taxonomy (github/primer#6663) is intentionally deferred; the hook location is documented in the file header.

Changelog

New

Timeline.dependabot.features.stories.tsx and Timeline.dependabot.features.stories.module.css — Storybook Features stories recreating the Dependabot alert timeline events (5 groups, 23 variants).

Changed

None.

Removed

None.

Rollout strategy

None; if selected, include a brief description as to why

Stories-only change — no consumer-facing package code is added or modified, so no changeset is needed (the skip changeset label is applied).

Testing & Reviewing

prettier, eslint, and stylelint all clean; type-check passes with 0 new errors (the pre-existing @primer/doc-gen baseline error in script/components-json/build.ts is unchanged).
All 5 groups were visually diffed against the live ERB render and the Figma source. Where Figma was behind live (the dismissal events), the live render won.
Browse the stories under Components/Timeline/Events/Dependabot in Storybook to review each group.

Merge checklist

Storybook-only Dependabot alert timeline event stories under Components/Timeline/Events/Dependabot, mirroring the Issues stories pattern. Scoped to the eventOpened group (Opened / OpenedFromPR / OpenedFromPush) as a reviewable proof-of-pattern. Translated from the live server-rendered ERB (DependabotAlerts::TimelineItems::OpenedComponent). Not wired into components-json / primer.style docs by design. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Completes the Dependabot alert timeline event stories (Phase 2): adds eventFixed, eventDismissed, eventReopened, and eventDismissalRequest alongside the existing eventOpened group. Adds circle UserActor and no-avatar PlainActor helpers and a NoteComment sub-content helper, all translated from the live server-rendered ERB (github/github app/components/dependabot_alerts/timeline_items/). Corrects the push-pill to the subtle light-blue GitHub SHA pill (bgColor-accent-muted + fgColor-accent), matching Primer view_components' bg: :accent mapping rather than the solid emphasis blue. Storybook-only by design; not wired into components-json / primer.style docs. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

The dismissal_*_component.rb files use ViewComponent::InlineTemplate, so their inline erb_template is the active render and the .html.erb sidecars are dead code. Rebuild Requested/Approved/Denied to the avatar-based inline version: circle user actor (UserActor), and status-driven badges via named variants — Requested attention/comment, Approved success/check, Denied danger/x. Cancelled keeps the plain default (subtle) x badge per its inline template. Optional review/resolution notes use the shared NoteComment sub-row. Removes the now-unused PlainActor helper and its CSS, plus the unused Muted, ResolutionLine, and ReviewCommentBox/Label styles. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

The dismissal inline ERB uses with_badge(color: :X, icon: Y) with no bg:, which tints the icon on the default badge background rather than producing a solid emphasis badge. Replace the named attention/success/danger Timeline.Badge variants with a bare Timeline.Badge plus a colored Octicon (icon color via a .BadgeIcon* class), mirroring the muted Dismissed treatment. Cancelled's :subtle maps to --fgColor-muted (no --fgColor-subtle token exists). Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

The Dismissal Requested event's live inline template renders a float-right DismissalReviewDialogComponent when show_dismissal_actions is true — its visible control is a single small primary "Review request" button that opens the approve/deny review dialog. Surface it in the Timeline.Actions right-controls slot (#6678) on the Requested variant only. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

changeset-bot · 2026-06-28T07:02:05Z

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The bare alert-rule-name links in the auto-dismissed and auto-reopened note rows had no non-color distinction, failing axe link-in-text-block (WCAG 1.4.1) in high-contrast themes. Add the inline prop (Primer underlines inline links), matching the live ERB (the rule name is a plain, non-bold Primer::Beta::Link) and the convention used by the Issues stories. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Copilot

Pull request overview

Adds a new Storybook “Features” story set under Components/Timeline/Events/Dependabot to document/recreate GitHub’s Dependabot alert timeline event rows using Primer React Timeline composition (including Timeline.Actions), plus supporting CSS modules for pixel-faithful styling.

Changes:

Added Timeline.dependabot.features.stories.tsx with 5 event-group exports (Opened, Fixed, Dismissed, Reopened, Dismissal Request) and shared helper subcomponents (actor, timestamp, push-pill, note row).
Added Timeline.dependabot.features.stories.module.css to style inline avatars, bold links, push-pill appearance, note rows, and badge icon coloring.

Show a summary per file

File	Description
packages/react/src/Timeline/Timeline.dependabot.features.stories.tsx	New Dependabot timeline event stories, including helper components and `Timeline.Actions` usage for the review-request control.
packages/react/src/Timeline/Timeline.dependabot.features.stories.module.css	Story-only CSS modules to match GitHub’s Dependabot timeline visuals (inline avatars, push-pill, badge icon coloring, timestamps).

Review details

Files reviewed: 2/2 changed files
Comments generated: 5
Review effort level: Low

Match the live DismissalReviewDialogComponent show-button (scheme: :primary, size: :small) and the inline comment describing it. Addresses Copilot review. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

janmaarten-a11y and others added 5 commits June 27, 2026 23:13

janmaarten-a11y added skip changeset This change does not need a changelog component: Timeline labels Jun 28, 2026

janmaarten-a11y deployed to github-pages June 28, 2026 07:12 — with GitHub Actions View deployment

github-actions Bot temporarily deployed to storybook-preview-8071 June 28, 2026 07:12 Inactive

janmaarten-a11y mentioned this pull request Jun 28, 2026

Timeline: add Issue event stories (Phase 2) #8070

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janmaarten-a11y deployed to github-pages June 28, 2026 07:35 — with GitHub Actions View deployment

github-actions Bot temporarily deployed to storybook-preview-8071 June 28, 2026 07:36 Inactive

This was referenced Jun 28, 2026

Timeline: add comment event stories (Phase 2) #8072

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Timeline: add Secret Scanning event stories (Phase 2) #8073

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janmaarten-a11y changed the title ~~Add Timeline Dependabot Features stories (Phase 2 Dependabot surface)~~ Timeline: add Dependabot event stories (Phase 2) Jun 28, 2026

This was referenced Jun 28, 2026

Timeline: add Code Scanning event stories (Phase 2) #8074

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Timeline: add License Compliance event stories (Phase 2) #8075

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janmaarten-a11y requested a review from Copilot June 28, 2026 21:50

Copilot started reviewing on behalf of janmaarten-a11y June 28, 2026 21:50 View session

Copilot AI reviewed Jun 28, 2026

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janmaarten-a11y self-assigned this Jun 28, 2026

Make dismissal Review request button primary

ebebdf3

Match the live DismissalReviewDialogComponent show-button (scheme: :primary, size: :small) and the inline comment describing it. Addresses Copilot review. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

janmaarten-a11y deployed to github-pages June 28, 2026 22:14 — with GitHub Actions View deployment

github-actions Bot deployed to storybook-preview-8071 June 28, 2026 22:15 View deployment

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Timeline: add Dependabot event stories (Phase 2)#8071

Timeline: add Dependabot event stories (Phase 2)#8071
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Summary

The 5 event groups (23 variants total)

Source of truth

Slots used (Phase 1 slots)

Scope & conventions

Changelog

New

Changed

Removed

Rollout strategy

Testing & Reviewing

Merge checklist

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janmaarten-a11y commented Jun 28, 2026 •

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