feat(core): improve WSI overview map interactions - #2872
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Included review availability: Your plan provides up to 4 included reviews per hour; 2 remain after this review. 📝 WalkthroughWalkthroughThe PR adds configurable WSI overview-map interactions with collapse-state preservation, event isolation, drag panning, and cleanup during rendering-data replacement and viewport disabling. ChangesWSI overview-map interactions
Estimated code review effort: 3 (Moderate) | ~20 minutes Merge Risk: ⚪ Minimal · up to This PR localizes WSI overview-map interaction and lifecycle behavior changes, with reported build, lint, automated test, and CI checks passing; no actionable merge-blocking risk remains. Possibly related PRs
Sequence Diagram(s)sequenceDiagram
participant Pointer
participant OverviewMap
participant Document
participant WSIViewport
Pointer->>OverviewMap: Start drag
OverviewMap->>Document: Register capture listeners
Document->>OverviewMap: Send pointer movement
OverviewMap->>WSIViewport: Update map center
Pointer->>OverviewMap: Release or cancel
OverviewMap->>Document: Remove listeners
🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
✨ Finishing Touches🧪 Generate unit tests (beta)
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benjaminforras
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August 18, 2026 22:37
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Inline comments:
In `@packages/core/src/utilities/WSIUtilities.ts`:
- Around line 162-167: Update blockedEventTypes to include pointermove,
pointerup, and pointercancel, while preserving drag panning behavior. Register
the document-level drag listeners used by panViewport and stopCurrentPan in
capture phase so they run before controlContainer propagation is stopped. Add
regression assertions covering all three pointer event types.
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Configuration used: defaults
Review profile: CHILL
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Run ID: 90ad5aa1-3839-44e4-a5d1-4d664dd3b324
📒 Files selected for processing (4)
packages/core/src/RenderingEngine/GenericViewport/WSI/DicomMicroscopyRenderPath.tspackages/core/src/RenderingEngine/WSIViewport.tspackages/core/src/utilities/WSIUtilities.tspackages/core/test/wsiOverviewMapInteractions.jest.js
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Context
Whole-slide microscopy viewports already render an overview map, but its controls can pass pointer and wheel events to viewport tools. The magnification box also cannot pan the main slide. Replacing WSI data in the legacy viewport loses the collapsed state and can leave document drag listeners attached.
This keeps the overview-map change separate from #2870, which covers right-drag region zoom.
Changes & Results
WSIViewportreplaces its data.Before, overview interactions could activate viewport tools, dragging the magnification box did not pan the slide, and WSI replacement could leave stale listeners.
After, overview interactions remain within the control, drag-to-pan works, and the interaction state follows the WSI lifecycle.
Testing
Automated checks:
corepack pnpm exec jest --selectProjects core packages/core/test/wsiOverviewMapInteractions.jest.js --runInBand: 34 suites passed, 552 tests passed, 2 skipped.pnpm run build: passed for the workspace.pnpm run lint: passed with no warnings or errors.pnpm run test:ci: passed in Chrome Headless.Manual verification steps:
Checklist
PR
semantic-release format and guidelines.
Code
etc.)
Public Documentation Updates
additions or removals. No documentation change is needed because this changes existing overview-map behavior without adding a user-facing option.
Tested Environment
Summary by CodeRabbit
New Features
Bug Fixes