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fix(segmentation): refresh the segment statistics card after a bidirectional compute or toggle - #6408
After Compute Largest Bidirectional, the segment statistics card keeps the button and shows no L and W. The eye icon also keeps its old state after a click. Both update only after the row is hovered again.
Root cause: CustomSegmentStatisticsHeader read the segment stats and the annotation visibility from the services during render. Its props (segmentationId, segmentIndex) never change while the hover card is open. Under the React Compiler, SegmentStatisticsHeader reuses the same cloned element, and the header reuses its cached render. The emitted code guards the whole block on segmentationService, segmentationId and segmentIndex, so new stats are never read.
Changes & Results
CustomSegmentStatisticsHeader keeps { namedStats, bidirectional, isVisible } in state.
It refreshes that state on SEGMENTATION_MODIFIED for its own segmentation. runSegmentBidirectional fires this event through addOrUpdateSegmentation.
The eye button refreshes the state right after it toggles the visibility.
Imports switched from @ohif/core/src and @ohif/core/src/utils to @ohif/core, the pattern used in the rest of the extension. The jest module mapper cannot resolve the /src subpaths, so this also makes the component testable.
New unit test CustomSegmentStatisticsHeader.test.ts. Two of its three cases fail on master and pass with the fix.
Before: the card shows the button until re-hover, and the eye icon is stale.
After: L and W appear as soon as the compute finishes, and the eye icon flips on click.
Testing
cd extensions/cornerstone && npx jest src/customizations/CustomSegmentStatisticsHeader.test.ts → 3 passed.
cd extensions/cornerstone && npx jest --ci → 37 suites, 652 tests passed.
pnpm run compiler:coverage:ci and pnpm run lint:compiler:ci → both pass, budgets unchanged. The component still compiles (_c(...) present in the emitted code).
eslint and prettier --check on the changed files → clean.
Manual check in Chrome 156 against the local dev server (pnpm dev), same build with only CustomSegmentStatisticsHeader.tsx swapped:
Open /segmentation?StudyInstanceUIDs=1.3.6.1.4.1.14519.5.2.1.256467663913010332776401703474716742458, load the SEG, switch to MPR.
Hover the Liver row and click Compute Largest Bidirectional. Keep the pointer on the card.
Click the eye icon in the card. Keep the pointer on the card.
master
This PR
After compute
Button still shown, measurement drawn in the axial pane
L 184 mm, W 107 mm shown right away
After eye click
Measurement hidden, icon still the open eye
Measurement hidden, icon flips to the crossed eye
A second eye click shows the measurement again and the icon flips back (screenshot).
The Bidirectional: NaN mm row at the bottom of the stats list is there on master too after a re-hover. This PR does not change it.
Checklist
PR
My Pull Request title is descriptive, accurate and follows the
semantic-release format and guidelines.
Code
My code has been well-documented (function documentation, inline comments,
etc.)
Public Documentation Updates
The documentation page has been updated as necessary for any public API
additions or removals. (No public API change.)
Tested Environment
OS: Windows 11
Node version: 24.16.0
Browser: Chrome 156
Summary by CodeRabbit
Bug Fixes
The segment statistics header now refreshes its measurements when the selected segmentation changes.
The visibility icon now reflects annotation visibility changes.
Hover cards are now associated with both the segmentation and segment, preventing them from being reused across different segmentations.
…ctional compute or toggle
The custom segment statistics header read the segment stats and the
annotation visibility from the services during render. Its props
(segmentationId, segmentIndex) never change while the hover card is open,
so the React Compiler reuses the first render. The card kept showing the
Compute Largest Bidirectional button, and the eye icon kept its old
state, until the row was hovered again.
The header now keeps the stats in state. It refreshes them on
SEGMENTATION_MODIFIED for its segmentation and after the visibility
toggle.
FixesOHIF#6374
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
No actionable comments were generated in the recent review.
Walkthrough
CustomSegmentStatisticsHeader now refreshes its displayed measurements and annotation visibility after segmentation changes and visibility toggles. The segmentation table’s hover card key now includes the segmentation ID and segment index.
Changes: Segment statistics header refresh
Layer / File(s)
Summary
Header state refresh and validation extensions/cornerstone/src/customizations/CustomSegmentStatisticsHeader.tsx, extensions/cornerstone/src/customizations/CustomSegmentStatisticsHeader.test.ts
The header initializes state from cached segment statistics and annotation visibility. It refreshes state when its segmentation emits a modification event and after a visibility toggle. Tests cover matching and non-matching segmentation events, measurement display, and eye icon changes.
OHIF/Viewers#6375: This PR addresses the card refresh behavior that issue defers to #6374. It does not address the reported MPR measurement drawing or viewport orientation behavior.
Possibly related PRs
OHIF/Viewers#6351: Adds selectors and end-to-end tests for the same bidirectional measurement controls in CustomSegmentStatisticsHeader.
Suggested reviewers:sedghi, jbocce
Merge Risk: Minimal · up to 1866f
The changes address the reported segment-statistics refresh and hover-card identity behavior without an actionable merge-blocking risk.
Pre-merge checks: 5
Check name
Status
Explanation
Title check
The title names the main change: the segment statistics card now refreshes after a bidirectional compute or a visibility toggle. It follows the semantic-release format with a scope and a short imperat…
Linked Issues check
The only direct active target is #6374. Its coding requirements are: (1) the segment statistics card shows L and W when Compute Largest Bidirectional finishes, without re-hover; (2) the eye icon refle…
Out of Scope Changes check
Whole-PR changes relative to merge base f4a15ef and head 1866fee:
Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentat…
Description check
The description follows the template and gives context, changes, test results, and a complete checklist. It does not mention the hover card key change.
Full details: Title check
Explanation
The title names the main change: the segment statistics card now refreshes after a bidirectional compute or a visibility toggle. It follows the semantic-release format with a scope and a short imperative summary. The changeset matches it: the header keeps stats, bidirectional, and visibility in state, refreshes on SEGMENTATION_MODIFIED, and refreshes after the eye toggle.
Full details: Linked Issues check
Explanation
The only direct active target is #6374. Its coding requirements are: (1) the segment statistics card shows L and W when Compute Largest Bidirectional finishes, without re-hover; (2) the eye icon reflects the measurement visibility right after a click.
Requirement (1) [#6374]: CustomSegmentStatisticsHeader.tsx keeps namedStats, bidirectional and isVisible in useState. getHeaderStats() reads the values from segmentationService. A useEffect subscribes to SEGMENTATION_MODIFIED and refreshes the state when the event's segmentationId matches the header. The effect's dependencies include segmentationId and segmentIndex, and it returns unsubscribe. The render path reads the state, so the L/W branch appears after the event. The compute path relies on runSegmentBidirectional calling addOrUpdateSegmentation, which emits SEGMENTATION_MODIFIED. I did not read runSegmentBidirectional directly. The PR manual check reports L 184 mm and W 107 mm after compute, which supports this.
Requirement (2) [#6374]: The eye onClick calls setAnnotationVisibility(!isVisible), then addOrUpdateSegmentation, then setHeaderStats(getHeaderStats(...)). The icon follows the new visibility on the same click.
Incremental change since the previous review (ed01cfb to 1866fee): the HoverCard key in SegmentationSegments.tsx now includes segmentationId. Without it, switching segmentation under the same card keeps stats from the previous segmentation until a modification event arrives. The key change closes that gap for the same card. This does not change the verdict.
Tests: CustomSegmentStatisticsHeader.test.ts uses mocks. It covers the L/W update, the ignore case for another segmentation, and the eye icon switch. The tests do not exercise real service event emission. The manual check in the PR covers that path.
No non-coding requirements exist in #6374. The Bidirectional NaN row is not part of the issue requirements.
Full details: Out of Scope Changes check
Explanation
Whole-PR changes relative to merge base f4a15ef and head 1866fee:
CustomSegmentStatisticsHeader.tsx: state, SEGMENTATION_MODIFIED subscription, getHeaderStats helper, and eye-toggle refresh. These implement #6374 directly.
CustomSegmentStatisticsHeader.tsx: imports changed to import { useSystem, utils } from '@ohif/core' and const { roundNumber } = utils. This matches the stated purpose of the PR, which is to use the package entry point that the Jest module mapper resolves. It supports the new unit test and the component behavior. It is connected to the objective.
SegmentationSegments.tsx (platform/ui-next): HoverCard key changed from hover-${segmentIndex} to hover-${segmentation.segmentationId}-${segmentIndex}. This makes the header remount when the active segmentation changes, so its state reloads for that segmentation. It is directly tied to the stale-stats behavior in the same card. It is a one-line change and is connected to the objective.
CustomSegmentStatisticsHeader.test.ts: new unit tests for the header behavior in #6374. This is supporting test code.
No change was found that is unrelated to #6374. The NaN bidirectional row is not changed. The reviewed diff is the whole-PR diff for the two source files named in the summary. The full file list was not enumerated, so this verdict covers the files named in the summary and the inspected diffs.
Full details: Docstring Coverage
Explanation
Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff with cyclomatic complexity of at least 2. Documentation-only edits and deletions within surviving functions are included; unchanged diff context and fully deleted functions are excluded. Analyzed 1 functions across 3 files.
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Actionable comments posted: 1
Fix comments: Fix CodeRabbit comments on this PR
Prompt to fix all issues
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Inline comments:
Review comments at
@extensions/cornerstone/src/customizations/CustomSegmentStatisticsHeader.tsx:
- Around line 47-49: Update the hover card key to include both the segmentation
identifier and segment index, so React remounts the card and statistics header
when the active segmentation changes while preserving distinct cards for
different segments.
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Key the segment stats HoverCard by segmentationId as well as segmentIndex,
so switching the active segmentation remounts CustomSegmentStatisticsHeader
and it reloads stats for the new segmentation instead of keeping the old ones.
Addresses CodeRabbit review on OHIF#6408.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Context
Fixes #6374
After Compute Largest Bidirectional, the segment statistics card keeps the button and shows no L and W. The eye icon also keeps its old state after a click. Both update only after the row is hovered again.
Root cause:
CustomSegmentStatisticsHeaderread the segment stats and the annotation visibility from the services during render. Its props (segmentationId,segmentIndex) never change while the hover card is open. Under the React Compiler,SegmentStatisticsHeaderreuses the same cloned element, and the header reuses its cached render. The emitted code guards the whole block onsegmentationService,segmentationIdandsegmentIndex, so new stats are never read.Changes & Results
CustomSegmentStatisticsHeaderkeeps{ namedStats, bidirectional, isVisible }in state.SEGMENTATION_MODIFIEDfor its own segmentation.runSegmentBidirectionalfires this event throughaddOrUpdateSegmentation.@ohif/core/srcand@ohif/core/src/utilsto@ohif/core, the pattern used in the rest of the extension. The jest module mapper cannot resolve the/srcsubpaths, so this also makes the component testable.CustomSegmentStatisticsHeader.test.ts. Two of its three cases fail onmasterand pass with the fix.Before: the card shows the button until re-hover, and the eye icon is stale.
After: L and W appear as soon as the compute finishes, and the eye icon flips on click.
Testing
cd extensions/cornerstone && npx jest src/customizations/CustomSegmentStatisticsHeader.test.ts→ 3 passed.cd extensions/cornerstone && npx jest --ci→ 37 suites, 652 tests passed.pnpm run compiler:coverage:ciandpnpm run lint:compiler:ci→ both pass, budgets unchanged. The component still compiles (_c(...)present in the emitted code).eslintandprettier --checkon the changed files → clean.Manual check in Chrome 156 against the local dev server (
pnpm dev), same build with onlyCustomSegmentStatisticsHeader.tsxswapped:/segmentation?StudyInstanceUIDs=1.3.6.1.4.1.14519.5.2.1.256467663913010332776401703474716742458, load the SEG, switch to MPR.masterA second eye click shows the measurement again and the icon flips back (screenshot).
The
Bidirectional: NaN mmrow at the bottom of the stats list is there onmastertoo after a re-hover. This PR does not change it.Checklist
PR
semantic-release format and guidelines.
Code
etc.)
Public Documentation Updates
additions or removals. (No public API change.)
Tested Environment
Summary by CodeRabbit