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Add progressive web app companion for cross-platform access

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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>
This commit is contained in:
Ole-Morten Duesund 2026-03-08 17:41:38 +01:00
commit e8428de775
12051 changed files with 1799735 additions and 0 deletions
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80
pwa/node_modules/terser/tools/props.html generated vendored Normal file
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<html>
<head>
</head>
<body>
<script>(function(){
var props = {};
function addObject(obj) {
if (obj == null) return;
try {
Object.getOwnPropertyNames(obj).forEach(add);
} catch(ex) {}
if (obj.prototype) {
Object.getOwnPropertyNames(obj.prototype).forEach(add);
}
if (typeof obj == "function") {
try {
Object.getOwnPropertyNames(new obj).forEach(add);
} catch(ex) {}
}
}
function add(name) {
if (/^[a-z_$][a-z0-9_$]*$/i.test(name)) {
props[name] = true;
}
}
Object.getOwnPropertyNames(window).forEach(function(thing){
addObject(window[thing]);
});
try {
addObject(new Event("click"));
addObject(new Event("contextmenu"));
addObject(new Event("mouseup"));
addObject(new Event("mousedown"));
addObject(new Event("keydown"));
addObject(new Event("keypress"));
addObject(new Event("keyup"));
addObject(new Event("input"));
addObject(new Event("touchstart"));
addObject(new Event("touchmove"));
addObject(new Event("touchend"));
addObject(new Event("touchcancel"));
addObject(new Event("pointerdown"));
addObject(new Event("pointermove"));
addObject(new Event("pointerup"));
addObject(new Event("pointercancel"));
addObject(new Event("pointerenter"));
addObject(new Event("pointerleave"));
} catch(ex) {console.error(ex)}
try {
addObject(Temporal.Duration.from({ years: 1 }));
addObject(new Temporal.Instant());
addObject(Temporal.Now);
addObject(new Temporal.PlainDate(2021, 7, 1));
addObject(new Temporal.ZonedDateTime(0n, "America/New_York"));
addObject(new Temporal.PlainYearMonth(2021, 7));
addObject(new Temporal.PlainTime());
addObject(new Temporal.PlainMonthDay(7, 1));
addObject(new Temporal.PlainDateTime(2021, 7, 1));
} catch(ex) {console.error(ex)}
var ta = document.createElement("textarea");
ta.style.width = "100%";
ta.style.height = "20em";
ta.style.boxSizing = "border-box";
ta.value = 'export var domprops = ' + JSON.stringify(Object.keys(props).sort(cmp), null, 4);
document.body.appendChild(ta);
function cmp(a, b) {
a = a.toLowerCase();
b = b.toLowerCase();
return a < b ? -1 : a > b ? 1 : 0;
}
})();</script>
</body>
</html>