files for /public
within /public there is a folder called /public/icons which holds all the icons mentioned in manfest.json
This commit is contained in:
parent
876e884509
commit
5d81e00aeb
64
manifest.json
Normal file
64
manifest.json
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{
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"name": "LUPMIS2 Drawing Tools",
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"short_name": "LUPMIS",
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"description": "Map and GIS functions for Land Use Planning in Ghana",
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"start_url": "/",
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"scope": "/",
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"display": "standalone",
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"background_color": "#f5f5f5",
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"theme_color": "#6CCB2D",
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"orientation": "any",
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"icons": [
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{
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"src": "/icons/icon-72.png",
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"sizes": "72x72",
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"type": "image/png",
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"purpose": "any"
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},
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{
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"src": "/icons/icon-96.png",
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"sizes": "96x96",
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"type": "image/png",
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"purpose": "any"
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},
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{
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"src": "/icons/icon-128.png",
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"sizes": "128x128",
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"type": "image/png",
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"purpose": "any"
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},
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{
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"src": "/icons/icon-144.png",
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"sizes": "144x144",
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"type": "image/png",
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"purpose": "any"
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},
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{
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"src": "/icons/icon-152.png",
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"sizes": "152x152",
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"type": "image/png",
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"purpose": "any"
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},
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{
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"src": "/icons/icon-192.png",
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"sizes": "192x192",
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"type": "image/png",
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"purpose": "any maskable"
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},
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{
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"src": "/icons/icon-384.png",
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"sizes": "384x384",
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"type": "image/png",
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"purpose": "any"
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},
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{
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"src": "/icons/icon-512.png",
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"sizes": "512x512",
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"type": "image/png",
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"purpose": "any maskable"
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}
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],
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"categories": ["productivity", "utilities"],
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"lang": "en",
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"dir": "ltr"
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}
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92
offline.html
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92
offline.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<meta name="theme-color" content="#2d5016">
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<title>Offline - LUPMIS</title>
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<style>
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* {
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box-sizing: border-box;
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}
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body {
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
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margin: 0;
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padding: 20px;
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background: #f5f5f5;
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color: #333;
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min-height: 100vh;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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.offline-container {
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text-align: center;
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max-width: 400px;
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}
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.offline-icon {
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font-size: 80px;
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margin-bottom: 20px;
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}
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h1 {
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color: #2d5016;
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margin-bottom: 10px;
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}
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p {
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color: #666;
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line-height: 1.6;
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}
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button {
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background: #2d5016;
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color: white;
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border: none;
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padding: 12px 24px;
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border-radius: 4px;
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cursor: pointer;
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font-size: 16px;
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margin-top: 20px;
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}
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button:hover {
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background: #1e3a0f;
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}
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.hint {
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margin-top: 30px;
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padding: 15px;
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background: #e3f2fd;
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border-radius: 8px;
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font-size: 14px;
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color: #1565c0;
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}
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</style>
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</head>
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<body>
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<div class="offline-container">
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<div class="offline-icon">📴</div>
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<h1>You're Offline</h1>
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<p>
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This page isn't available offline. Please check your internet connection and try again.
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</p>
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<button onclick="window.location.reload()">Try Again</button>
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<div class="hint">
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💡 <strong>Tip:</strong> Visit the main app while online first.
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Once cached, you can collect data offline!
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</div>
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</div>
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<script>
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// Auto-reload when back online
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window.addEventListener('online', () => {
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window.location.reload();
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});
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</script>
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</body>
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</html>
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321
sw.js
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321
sw.js
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/**
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* Service Worker
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*
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* Handles caching of:
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* - App shell (HTML, CSS, JS)
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* - Map tiles (runtime caching)
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* - API responses (network-first)
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*
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* Note: Database operations are handled by the SharedWorker (shared-db-worker.js),
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* NOT by this service worker. They serve different purposes:
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* - Service Worker: Caching, offline asset serving, push notifications
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* - SharedWorker: Shared database connection across tabs
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*/
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const CACHE_VERSION = 'v1';
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const SHELL_CACHE = `shell-${CACHE_VERSION}`;
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const TILES_CACHE = `tiles-${CACHE_VERSION}`;
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const MODULES_CACHE = `modules-${CACHE_VERSION}`;
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const API_CACHE = `api-${CACHE_VERSION}`;
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// Maximum number of tiles to cache
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const MAX_TILES = 500;
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// App shell assets - precached on install
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// Vite will generate hashed filenames, so we cache the entry points
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// and let the browser handle the hashed assets
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const SHELL_ASSETS = [
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'/',
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'/index.html',
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'/offline.html',
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'/manifest.json'
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];
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// ============================================================================
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// INSTALL EVENT
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// ============================================================================
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self.addEventListener('install', (event) => {
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console.log('[SW] Installing...');
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event.waitUntil(
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caches.open(SHELL_CACHE)
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.then((cache) => {
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console.log('[SW] Precaching app shell');
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return cache.addAll(SHELL_ASSETS);
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})
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.then(() => self.skipWaiting())
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);
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});
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// ============================================================================
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// ACTIVATE EVENT
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// ============================================================================
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self.addEventListener('activate', (event) => {
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console.log('[SW] Activating...');
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event.waitUntil(
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caches.keys()
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.then((cacheNames) => {
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return Promise.all(
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cacheNames
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.filter((name) => {
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// Delete old version caches
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return (name.startsWith('shell-') && name !== SHELL_CACHE) ||
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(name.startsWith('tiles-') && name !== TILES_CACHE) ||
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(name.startsWith('modules-') && name !== MODULES_CACHE) ||
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(name.startsWith('api-') && name !== API_CACHE);
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})
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.map((name) => {
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console.log('[SW] Deleting old cache:', name);
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return caches.delete(name);
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})
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);
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})
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.then(() => self.clients.claim())
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);
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});
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// ============================================================================
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// FETCH EVENT
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// ============================================================================
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self.addEventListener('fetch', (event) => {
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const request = event.request;
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const url = new URL(request.url);
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// Only handle GET requests
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if (request.method !== 'GET') return;
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// Skip chrome-extension and other non-http(s) requests
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if (!url.protocol.startsWith('http')) return;
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// Route to appropriate caching strategy
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if (isMapTile(url)) {
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event.respondWith(cacheThenNetwork(request, TILES_CACHE, MAX_TILES));
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} else if (isApiRequest(url)) {
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event.respondWith(networkFirst(request, API_CACHE));
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} else if (isModuleAsset(url)) {
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event.respondWith(staleWhileRevalidate(request, MODULES_CACHE));
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} else if (isAppAsset(url)) {
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event.respondWith(cacheFirst(request, SHELL_CACHE));
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}
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// Let other requests pass through to network
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});
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// ============================================================================
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// URL CLASSIFICATION
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// ============================================================================
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function isMapTile(url) {
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// Common tile server patterns for all our base maps
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return url.hostname.includes('tile.openstreetmap.org') ||
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url.hostname.includes('opentopomap.org') ||
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url.hostname.includes('arcgisonline.com') ||
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url.hostname.includes('basemaps.cartocdn.com') ||
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url.hostname.includes('tiles.') ||
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url.pathname.match(/\/\d+\/\d+\/\d+\.(png|jpg|pbf)$/) ||
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url.pathname.match(/\/tile\/\d+\/\d+\/\d+/);
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}
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function isApiRequest(url) {
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return url.pathname.startsWith('/api/') ||
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url.pathname.endsWith('.php');
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}
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function isModuleAsset(url) {
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return url.pathname.startsWith('/modules/');
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}
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function isAppAsset(url) {
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// Same origin, common asset extensions
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return url.origin === self.location.origin &&
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(url.pathname.endsWith('.html') ||
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url.pathname.endsWith('.css') ||
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url.pathname.endsWith('.js') ||
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url.pathname.endsWith('.wasm') ||
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url.pathname.endsWith('.json') ||
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url.pathname.match(/\.(png|jpg|jpeg|gif|svg|ico|webp)$/));
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}
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// ============================================================================
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// CACHING STRATEGIES
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// ============================================================================
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/**
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* Cache First - Use cache, fallback to network
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* Best for: App shell, static assets
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*/
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async function cacheFirst(request, cacheName) {
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const cached = await caches.match(request);
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if (cached) return cached;
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try {
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const response = await fetch(request);
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if (response.ok) {
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const cache = await caches.open(cacheName);
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cache.put(request, response.clone());
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}
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return response;
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} catch (error) {
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// Return offline page for navigation requests
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if (request.mode === 'navigate') {
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return caches.match('/offline.html');
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}
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throw error;
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}
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}
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/**
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* Network First - Try network, fallback to cache
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* Best for: API requests, dynamic content
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*/
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async function networkFirst(request, cacheName) {
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try {
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const response = await fetch(request);
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if (response.ok) {
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const cache = await caches.open(cacheName);
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cache.put(request, response.clone());
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}
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return response;
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} catch (error) {
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const cached = await caches.match(request);
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if (cached) return cached;
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throw error;
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}
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}
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/**
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* Stale While Revalidate - Return cache immediately, update in background
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* Best for: Module assets, frequently updated content
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*/
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async function staleWhileRevalidate(request, cacheName) {
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const cache = await caches.open(cacheName);
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const cached = await cache.match(request);
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const fetchPromise = fetch(request).then((response) => {
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if (response.ok) {
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cache.put(request, response.clone());
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}
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return response;
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}).catch(() => cached);
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return cached || fetchPromise;
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}
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/**
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* Cache Then Network with limit - Cache tiles with size limit
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* Best for: Map tiles
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*/
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async function cacheThenNetwork(request, cacheName, maxItems) {
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const cache = await caches.open(cacheName);
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const cached = await cache.match(request);
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if (cached) return cached;
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try {
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const response = await fetch(request);
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if (response.ok) {
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// Check cache size and trim if needed
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const keys = await cache.keys();
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if (keys.length >= maxItems) {
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// Remove oldest entries (first 10%)
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const toDelete = keys.slice(0, Math.ceil(maxItems * 0.1));
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await Promise.all(toDelete.map(key => cache.delete(key)));
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}
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cache.put(request, response.clone());
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}
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return response;
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} catch (error) {
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// For tiles, just fail silently - map will show blank tile
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return new Response('', { status: 408, statusText: 'Offline' });
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}
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}
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// ============================================================================
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// MESSAGE HANDLING
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// ============================================================================
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self.addEventListener('message', (event) => {
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const { type, payload } = event.data || {};
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switch (type) {
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case 'SKIP_WAITING':
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self.skipWaiting();
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break;
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case 'CACHE_MODULES':
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cacheModules(payload.modules);
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break;
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case 'CLEAR_USER_CACHE':
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clearUserCaches();
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break;
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case 'GET_CACHE_STATUS':
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getCacheStatus().then(status => {
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event.source.postMessage({ type: 'CACHE_STATUS', status });
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});
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break;
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}
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});
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/**
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* Cache specific modules on demand
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*/
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async function cacheModules(moduleNames) {
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const cache = await caches.open(MODULES_CACHE);
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for (const moduleName of moduleNames) {
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try {
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const moduleAssets = [
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`/modules/${moduleName}/index.js`,
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`/modules/${moduleName}/index.css`,
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`/modules/${moduleName}/index.html`
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];
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await cache.addAll(moduleAssets.filter(async (url) => {
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// Only cache assets that exist
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try {
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const response = await fetch(url, { method: 'HEAD' });
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return response.ok;
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} catch {
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return false;
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}
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}));
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console.log('[SW] Cached module:', moduleName);
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} catch (error) {
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console.warn('[SW] Failed to cache module:', moduleName, error);
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}
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}
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}
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/**
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* Clear user-specific caches (call on logout)
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*/
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async function clearUserCaches() {
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await caches.delete(API_CACHE);
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await caches.delete(MODULES_CACHE);
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console.log('[SW] Cleared user caches');
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}
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/**
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* Get cache status information
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*/
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async function getCacheStatus() {
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const cacheNames = await caches.keys();
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const status = {};
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for (const name of cacheNames) {
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const cache = await caches.open(name);
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const keys = await cache.keys();
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status[name] = keys.length;
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}
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return status;
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}
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Reference in New Issue
Block a user