62 lines
2.6 KiB
JavaScript
62 lines
2.6 KiB
JavaScript
/**
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* useMapProvider.js — resolve the active map engine ("provider").
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*
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* Resolution order (first defined wins):
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* 1. profile-config `provider` — per-map, set in the profile-config JSON
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* 2. window.MAP_PROVIDER — runtime override (e.g. a host reads ?provider=…)
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* 3. 'mapbox' — default; existing behaviour, never regresses
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*
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* Valid values: 'mapbox' | 'maplibre'. Anything else falls back to the default.
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*/
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import { inject } from 'vue'
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export const MAP_PROVIDERS = ['mapbox', 'maplibre']
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export const DEFAULT_PROVIDER = 'mapbox'
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/** Unwrap a ref/computed to its config object; pass plain objects through. */
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function unwrapConfig(profileConfig) {
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if (profileConfig && typeof profileConfig === 'object'
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&& 'value' in profileConfig && !('provider' in profileConfig) && !('profile' in profileConfig)) {
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return profileConfig.value
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}
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return profileConfig
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}
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/**
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* Resolve the provider from a profile-config (object or ref) + window fallback.
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* Pure — safe to call outside a Vue setup().
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*/
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export function resolveMapProvider(profileConfig) {
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const cfg = unwrapConfig(profileConfig)
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const fromConfig = cfg?.provider
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const fromUrl = typeof location !== 'undefined'
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? new URLSearchParams(location.search).get('provider') : undefined
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const fromWindow = typeof window !== 'undefined' ? window.MAP_PROVIDER : undefined
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const raw = String(fromConfig || fromUrl || fromWindow || DEFAULT_PROVIDER).toLowerCase().trim()
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return MAP_PROVIDERS.includes(raw) ? raw : DEFAULT_PROVIDER
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}
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/** Human-readable engine label for a badge / UI. */
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export function providerLabel(provider) {
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return provider === 'maplibre' ? 'MapLibre' : 'Mapbox'
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}
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/** Convenience for use inside a Vue setup() — injects the provided profileConfig. */
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export function useMapProvider() {
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const profileConfig = inject('profileConfig', null)
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return resolveMapProvider(profileConfig)
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}
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/** True when this map instance is a Mapbox GL map (vs MapLibre). Per-instance runtime
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* sniff — works even on dual-engine pages where both globals are loaded. */
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export function isMapboxMap(map) {
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return typeof window !== 'undefined' && !!window.mapboxgl && map instanceof window.mapboxgl.Map
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}
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/** Mapbox-Standard-only lighting paint props, per engine. MapLibre rejects layers whose
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* paint carries unknown properties (the whole layer is dropped → invisible pins), so
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* spread this instead of writing 'circle-emissive-strength' literally. */
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export function emissivePaint(map) {
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return isMapboxMap(map) ? { 'circle-emissive-strength': 1 } : {}
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}
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