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Sync tile overlay state via Yjs across participants

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OverlaySync component listens to Leaflet overlayadd/overlayremove
events and writes enabled overlay IDs to Yjs routeData. On connect,
loads initial overlay state from Yjs. LayersControl.Overlay uses
checked prop to reflect the synced state.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Ullrich Schäfer 2026-04-11 02:32:36 +02:00
parent bf964e07fc
commit e158205f32
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2 changed files with 62 additions and 2 deletions
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openspec/changes/osm-overlays/tasks.md
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@ -6,7 +6,7 @@
## 2. Overlay State Sync
- [ ] 2.1 Add `overlays` string array to Yjs `routeOptions` Y.Map for enabled tile overlay IDs (deferred — tile overlays are visual-only)
- [x] 2.1 Add `overlays` string array to Yjs `routeOptions` Y.Map for enabled tile overlay IDs
- [x] 2.2 Add `poiCategories` string array to Yjs `routeOptions` Y.Map for enabled POI category IDs
- [x] 2.3 Sync LayersControl state with Yjs — toggling overlay updates Yjs, Yjs changes toggle layers
- [x] 2.4 Include overlay state in crash recovery localStorage snapshot