Apply/Reject controls in the collaboration sidebar

[adamsilverstein]

Overview

One of three replacement PRs for the now-closed #77407. This slice wires Apply / Reject sidebar UI on top of the summary + attribute-conflict work from #78352.

Tracking issue: #73411.

What's in this PR

Collaboration sidebar

• useSuggestionDecision hook in suggestion-actions.js — A single source of truth for Apply / Reject behavior. Both the note header (icon buttons) and the note body (resolution state, staleness dialog) read from the same hook, so their behavior cannot diverge.
• Icon-only Apply / Reject buttons in the note header (check, closeSmall icons from @wordpress/icons).
• Note body renders the SuggestionSummary plus the staleness confirmation dialog when hasAttributeConflict returns true.
• utils.js — helpers shared between note components for reading the suggestion-related metadata.

Tests

• Unit: test/utils.js extended for the new helpers.
• e2e: block-notes.spec.js (new spec covering Apply / Reject flows) and editor-intent-switcher.spec.js (snackbar assertions).

Test plan

npm run test:unit -- packages/editor/src/components/collab-sidebar
npm run test:e2e -- test/e2e/specs/editor/various/block-notes.spec.js
npm run test:e2e -- test/e2e/specs/editor/various/editor-intent-switcher.spec.js

Manual:

1. Switch to Suggest mode (snackbar confirms) and edit a paragraph.
2. Switch back to Edit mode; open the note in the collab sidebar.
3. Apply button (check icon) accepts the suggestion; Reject (close icon) discards.
4. Edit the same paragraph's attributes in another window, then open the original suggestion: the staleness dialog appears only if the divergent attributes overlap (per hasAttributeConflict).

Replaces part of #77407.

---

🗺️ PR Stack Navigation

#	PR	Phase
1	#77403 Intent scaffolding	Edit / Suggest / View mode
2	#77404 Overlay capture	In-memory suggestion overlay
3	#77405 Provider + Accept/Reject	_wp_suggestion meta, provider, sidebar actions
4	#77406 Summary + docs + attribute tests	Add/Delete/Formatting summary, architecture stub, conflict scoping
5a	#78351 REST permissions and PHP coverage	Permissions, payload cap, PHP tests
5b	#78352 Summary + attribute conflict + docs	Renderer, per-attribute staleness, architecture docs
5c	#78353 Surface Apply/Reject in the collaboration sidebar ← this PR	Icon buttons + e2e + sidebar wiring
6	#78308 Auto-save subsystem	Background debounced save (replaces commit-bar)

📋 Tracking issue: #73411

[github-actions]

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[github-actions]

Size Change: +781 B (+0.01%)

Total Size: 7.51 MB

📦 View Changed

Filename	Size	Change
build/scripts/editor/index.min.js	481 kB	+781 B (+0.16%)

_{compressed-size-action}

[github-actions]

Flaky tests detected in ff0fed1.
Some tests passed with failed attempts. The failures may not be related to this commit but are still reported for visibility. See the documentation for more information.

🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/28184512201
📝 Reported issues:

• [Flaky Test] As a user I expect my navigation to use the colors I selected for it #78865 in /test/e2e/specs/editor/blocks/navigation-colors.spec.js

[adamsilverstein]

Superseded by the fresh-stack restructure of Suggest mode (#73411).

The feature has been re-sliced from this 16-deep stack onto current trunk as a clean 2-PR stack:

• Suggest mode: core subsystem (intent modes, overlay capture, structural + attribute suggestions) #79713 — Suggest mode: core (intent modes, overlay capture, structural + attribute suggestions, REST/PHP, auto-save, sidebar, summary)
• Suggest mode: inline text and formatting suggestions via markers #79714 — Suggest mode: inline text suggestions (the <mark> marker layer)

The whole feature now sits behind a Suggestion Mode experiment (Settings → Experiments → Collaboration). Closing in favour of the new stack — details: #73411 (comment)