Ole-Morten Duesund
e8428de775
Vite + TypeScript PWA that mirrors the Android app's core features: - Pre-processed shelter data (build-time UTM33N→WGS84 conversion) - Leaflet map with shelter markers, user location, and offline tiles - Canvas compass arrow (ported from DirectionArrowView.kt) - IndexedDB shelter cache with 7-day staleness check - Service worker with CacheFirst tiles and precached app shell - i18n for en, nb, nn (ported from Android strings.xml) - iOS/Android compass handling with low-pass filter - Respects user map interaction (no auto-snap on pan/zoom) - Build revision cache-breaker for reliable SW updates Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
18 lines
530 B
JavaScript
18 lines
530 B
JavaScript
'use strict';
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var callBind = require('call-bind');
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var I402 = typeof Intl === 'undefined' ? null : Intl;
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var DateTimeFormat = !!I402 && I402.DateTimeFormat;
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var resolvedOptions = !!DateTimeFormat && callBind(DateTimeFormat.prototype.resolvedOptions);
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// https://262.ecma-international.org/15.0/#sec-systemtimezoneidentifier
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module.exports = function SystemTimeZoneIdentifier() {
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if (DateTimeFormat && resolvedOptions) {
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return resolvedOptions(new DateTimeFormat()).timeZone; // steps 2 - 3
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}
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return 'UTC'; // step 1
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};
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