71 lines
1.4 KiB
JavaScript
71 lines
1.4 KiB
JavaScript
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var storage = (function () {
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var storageName = 'cdb';
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var version = '0.1.0';
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var mainStorageKey;
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var initialized = false;
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var userModel;
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function init (key, opts) {
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if (!key) {
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throw new Error('key is required');
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}
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if (!userModel && !opts) {
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throw new Error('userModel is required');
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}
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if (!userModel && opts && opts.userModel) {
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userModel = opts.userModel;
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}
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mainStorageKey = key;
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initialized = true;
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}
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function getKey (key) {
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return [storageName, version, userModel.get('username'), mainStorageKey, key].join('.');
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}
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function isSupported () {
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try {
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return 'localStorage' in window && window['localStorage'] !== null;
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} catch (e) {
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return false;
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}
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}
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return {
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init: function (key, opts) {
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if (!isSupported()) throw new Error('localStorage not supported in your browser');
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init(key, opts);
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},
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get: function (key) {
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if (!initialized) {
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init();
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}
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var storageKey = getKey(key);
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return localStorage[storageKey];
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},
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set: function (key, value) {
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if (!initialized) {
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init();
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}
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var storageKey = getKey(key);
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localStorage[storageKey] = value;
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},
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delete: function (key) {
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if (!initialized) {
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init();
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}
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var storageKey = getKey(key);
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delete localStorage[storageKey];
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}
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};
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})();
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module.exports = storage;
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