52 lines
1.7 KiB
JavaScript
52 lines
1.7 KiB
JavaScript
// 📦 IndexedDB Helper
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function openDB() {
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return new Promise((resolve, reject) => {
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const request = indexedDB.open('directory-handle-db', 1);
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request.onupgradeneeded = () => {
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request.result.createObjectStore('handles');
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};
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request.onsuccess = () => resolve(request.result);
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request.onerror = () => reject(request.error);
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});
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}
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// 💾 Store a directory handle
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export async function setDirectoryHandle(handle) {
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const db = await openDB();
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const tx = db.transaction('handles', 'readwrite');
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tx.objectStore('handles').put(handle, 'my-folder');
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await tx.done;
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}
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// 📂 Retrieve a directory handle
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export async function getDirectoryHandle() {
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const db = await openDB();
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const tx = db.transaction('handles', 'readonly');
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return new Promise((resolve, reject) => {
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const getRequest = tx.objectStore('handles').get('my-folder');
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getRequest.onsuccess = () => resolve(getRequest.result);
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getRequest.onerror = () => {
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console.error('Error retrieving directory handle:', getRequest.error);
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return resolve(false);
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}
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});
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}
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// 🔐 Check or request permission
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async function verifyPermission(handle, mode = 'readwrite') {
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const opts = { mode };
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if ((await handle.queryPermission(opts)) === 'granted') return true;
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if ((await handle.requestPermission(opts)) === 'granted') return true;
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return false;
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}
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// 📌 Request persistent storage
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async function ensurePersistentStorage() {
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if (navigator.storage && navigator.storage.persist) {
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const granted = await navigator.storage.persist();
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console.log(granted
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? '✅ Persistent storage granted.'
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: '⚠️ Storage may be cleared under pressure.');
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}
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} |