mirror of https://github.com/jkjoy/sunpeiwen.git
102 lines
3.6 KiB
JavaScript
102 lines
3.6 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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var wrapIdbValue = require('./wrap-idb-value.cjs');
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/**
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* Open a database.
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*
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* @param name Name of the database.
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* @param version Schema version.
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* @param callbacks Additional callbacks.
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*/
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function openDB(name, version, { blocked, upgrade, blocking, terminated } = {}) {
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const request = indexedDB.open(name, version);
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const openPromise = wrapIdbValue.wrap(request);
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if (upgrade) {
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request.addEventListener('upgradeneeded', (event) => {
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upgrade(wrapIdbValue.wrap(request.result), event.oldVersion, event.newVersion, wrapIdbValue.wrap(request.transaction), event);
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});
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}
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if (blocked) {
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request.addEventListener('blocked', (event) => blocked(
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// Casting due to https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/1405
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event.oldVersion, event.newVersion, event));
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}
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openPromise
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.then((db) => {
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if (terminated)
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db.addEventListener('close', () => terminated());
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if (blocking) {
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db.addEventListener('versionchange', (event) => blocking(event.oldVersion, event.newVersion, event));
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}
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})
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.catch(() => { });
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return openPromise;
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}
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/**
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* Delete a database.
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*
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* @param name Name of the database.
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*/
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function deleteDB(name, { blocked } = {}) {
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const request = indexedDB.deleteDatabase(name);
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if (blocked) {
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request.addEventListener('blocked', (event) => blocked(
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// Casting due to https://github.com/microsoft/TypeScript-DOM-lib-generator/pull/1405
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event.oldVersion, event));
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}
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return wrapIdbValue.wrap(request).then(() => undefined);
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}
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const readMethods = ['get', 'getKey', 'getAll', 'getAllKeys', 'count'];
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const writeMethods = ['put', 'add', 'delete', 'clear'];
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const cachedMethods = new Map();
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function getMethod(target, prop) {
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if (!(target instanceof IDBDatabase &&
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!(prop in target) &&
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typeof prop === 'string')) {
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return;
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}
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if (cachedMethods.get(prop))
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return cachedMethods.get(prop);
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const targetFuncName = prop.replace(/FromIndex$/, '');
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const useIndex = prop !== targetFuncName;
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const isWrite = writeMethods.includes(targetFuncName);
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if (
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// Bail if the target doesn't exist on the target. Eg, getAll isn't in Edge.
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!(targetFuncName in (useIndex ? IDBIndex : IDBObjectStore).prototype) ||
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!(isWrite || readMethods.includes(targetFuncName))) {
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return;
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}
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const method = async function (storeName, ...args) {
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// isWrite ? 'readwrite' : undefined gzipps better, but fails in Edge :(
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const tx = this.transaction(storeName, isWrite ? 'readwrite' : 'readonly');
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let target = tx.store;
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if (useIndex)
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target = target.index(args.shift());
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// Must reject if op rejects.
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// If it's a write operation, must reject if tx.done rejects.
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// Must reject with op rejection first.
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// Must resolve with op value.
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// Must handle both promises (no unhandled rejections)
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return (await Promise.all([
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target[targetFuncName](...args),
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isWrite && tx.done,
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]))[0];
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};
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cachedMethods.set(prop, method);
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return method;
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}
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wrapIdbValue.replaceTraps((oldTraps) => ({
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...oldTraps,
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get: (target, prop, receiver) => getMethod(target, prop) || oldTraps.get(target, prop, receiver),
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has: (target, prop) => !!getMethod(target, prop) || oldTraps.has(target, prop),
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}));
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exports.unwrap = wrapIdbValue.unwrap;
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exports.wrap = wrapIdbValue.wrap;
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exports.deleteDB = deleteDB;
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exports.openDB = openDB;
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