feat: support multiple timeline layers [DHIS2-19542]

[BRaimbault]

Parent PR: #3584 > feat: support multiple split layers DHIS2-19542
Child PR: none

Implements DHIS2-19542

Description

This PR enables adding multiple timeline layers to a map.

Feats

• Changes:
  • Move Timeline component from ThematicLayer component to map/Maps component.
  • Let map/Maps component pass period property down to ThematicLayer components so multiple timelines are updated in sync.
• In:
  • src/components/map/layers/ThematicLayer.jsx
  • src/components/map/Map.jsx

 

• Change the logic in the rendering strategy to allow timeline if other timeline layers are already there: src/components/periods/RenderingStrategy.jsx

 

• Changes:
  • Get filter (ie periods) from already present timeline layers.
  • Change the logic to get set default periods to match other timeline layer if exists.
  • Sync period change across split layers upon successful layer validation.
• In: src/components/edit/thematic/ThematicDialog.jsx

---

Quality checklist

Add N/A to items that are not applicable.

• Dashboard tested
• Cypress and/or Jest tests added/updated
• Docs added
• d2-ci dependencies replaced (analytics or maps-gl link https://github.com/dhis2/[lib]/pull/XXX) N/A
• Tester approved (name)

---

Testing

• Build: maps-999.99.9-multipletimeline-rc2.2026-02-12.zip
• Instance: https://dev.im.dhis2.org/maps-app-42-3/apps/maps
• Dashboard: https://dev.im.dhis2.org/maps-app-42-3/apps/dashboard#/HNkPTrEE4Cx
• Maps:
  • Multiple split layers: https://dev.im.dhis2.org/maps-app-42-3/apps/maps#/rgHSDyMiAtv
  • Multiple timeline layers: https://dev.im.dhis2.org/maps-app-42-3/apps/maps#/sBfK0WfiesH

[dhis2-bot]

🚀 Deployed on https://pr-3593.maps.netlify.dhis2.org

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud