75 lines
1.8 KiB
JavaScript
75 lines
1.8 KiB
JavaScript
define(function () {
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/*
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This module uses localStorage, which is synchronous, but exposes an
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asyncronous API. This is so that we can substitute other storage
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methods.
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To override these methods, create another file at:
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/customize/storage.js
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*/
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var Store = {};
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// Store uses nodebacks...
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Store.set = function (key, val, cb) {
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localStorage.setItem(key, JSON.stringify(val));
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cb();
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};
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// implement in alternative store
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Store.setBatch = function (map, cb) {
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Object.keys(map).forEach(function (key) {
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localStorage.setItem(key, JSON.stringify(map[key]));
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});
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cb(void 0, map);
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};
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var safeGet = window.safeGet = function (key) {
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var val = localStorage.getItem(key);
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try {
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return JSON.parse(val);
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} catch (err) {
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console.log(val);
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console.error(err);
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return val;
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}
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};
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Store.get = function (key, cb) {
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cb(void 0, safeGet(key));
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};
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// implement in alternative store
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Store.getBatch = function (keys, cb) {
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var res = {};
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keys.forEach(function (key) {
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res[key] = safeGet(key);
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});
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cb(void 0, res);
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};
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Store.remove = function (key, cb) {
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localStorage.removeItem(key);
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cb();
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};
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// implement in alternative store
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Store.removeBatch = function (keys, cb) {
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keys.forEach(function (key) {
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localStorage.removeItem(key);
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});
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cb();
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};
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Store.keys = function (cb) {
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cb(void 0, Object.keys(localStorage));
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};
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Store.ready = function (f) {
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if (typeof(f) === 'function') {
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f(void 0, Store);
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}
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};
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return Store;
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});
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