Change all import specifiers from ".js" to ".ts" in TypeScript source
files. Add allowImportingTsExtensions and rewriteRelativeImportExtensions
to tsconfig so tsc strips them to ".js" in the dist output — no build
pipeline changes needed. Update CLAUDE.md to reflect the new extension policy.
The types/ directory now only had a single file. The PropDef and
PropTypesFromTable types are foundational to the module infrastructure
(used by utils.ts, with-props.ts, and every component), so core/ is a
better home. Deleted the empty types/ directory.
Adds buildAttrMap(props) and setLayerAttr(obj, props, attrMap,
name, val) to utils.ts. The former replaces the PROP_BY_ATTR Map
construction (2 fewer lines per component), the latter replaces
the 6-line dynamic setter dispatch pattern used as the fallback
else block in 6 components.
For WMS, setLayerAttr returns false when no setter exists, so the
caller can fall back to setParams for non-method props.
Adds registerChildren / unregisterChildren / getChildren to
register.ts using module-scoped WeakMaps, removing the duplicated
#children / #childHandler fields + lifecycle wiring from 15
components.
registerChildren(el, layer) creates the children Map + handler,
stores both in WeakMaps, wires the event listener, and calls
registerWithParent — all in one call. unregisterChildren(el)
tears it down. getChildren(el) gives access to the map for
components that need custom child iteration in disconnectedCallback
(geojson, layer-group, feature-group).
Net: -101 lines, 15 components lose 2-4 fields + 4-8 lifecycle
lines each. Components with extra lifecycle work (marker -> dragend,
polygon/polyline -> observer + syncCoords) keep their custom
additions inline, just the register boilerplate is replaced.
18 components now use withProps(HTMLElement, PROPS) instead of
repeating TypedBase cast, static get observedAttributes(), and
static { definePropAccessors(...) } in each file.
Adds src/core/with-props.ts — a mixin factory that derives
PropTypesFromTable, defines property accessors, and sets up
observedAttributes from a PROPS table in a single expression.
Augment HTMLElementEventMap with 'leaflet-register' so that
addEventListener('leaflet-register', handler) natively accepts
(e: LeafletRegisterEvent) => void, removing the need for
as EventListener casts in all 14 consumer components.
All 17 TypedBase components now share a single definePropAccessors(proto, PROPS)
call in their static block instead of duplicating the getter/setter loop.
Also includes pre-existing cleanup:
- Refine LeafletRegisterEvent type (interface -> generic CustomEvent)
- Drop unused attrToPropName helper
- Fix createChildRegisterHandler return type in layer-group/feature-group
buildOptions was passing default values for absent attributes,
including empty-string defaults like pane:'', which caused Leaflet to
look up this._panes[''] and return undefined, crashing in appendChild.
- Skip empty-string defaults in buildOptions so Leaflet uses its own
- Broaden createChildRegisterHandler param from LayerGroup to Layer so
non-container layers (marker, circle, etc.) can intercept popup/tooltip
children and call bindPopup/bindTooltip instead of bubbling to the map
- Add child-registration handler to every layer component (all 12)
- Fix disconnectedCallback in container components to unbind popups and
tooltips and remove child layers properly
Remove LeafletElement and LeafletControl base classes. Every component
now self-describes its attributes via a PROPS table, derives observed-
Attributes from it, and generates prototype getters/setters in static {}.
Registration lifecycle is extracted into standalone helpers
(registerWithParent, createChildRegisterHandler). Common update
patterns (path style) are shared via imported helpers instead of
duplicated across 5+ components.
Components manage their own #obj private field instead of a shared
protected leafletObject. Leaflet-map-style declarative patterns are
now consistent across all 20 components.
Wraps Leaflet.js as native Web Components. Each element maps 1:1 to a
Leaflet object with reactive attribute binding and proper lifecycle cleanup.
Key design decisions:
- LeafletElement base class handles attribute→option mapping, the
leaflet-register bubble event for parent/child wiring, and
disconnectedCallback cleanup tracking parent bindings.
- LeafletControl base class for map controls (zoom, attribution, scale).
- leaflet-map uses a PROPS table to drive observedAttributes, getters/setters,
attributeChangedCallback, and map event listeners from a single source of
truth. Property types are derived via a mapped type over the table; the
mixin-base pattern (TypedBase) makes them visible to TypeScript without an
interface merge.
- Boolean map options that default to true use disable-* attributes.
- Leaflet and its CSS are bundled into dist/index.js via esbuild.
- JSR config included for @buddy/leaflet-components.
Buddy