mirror of https://github.com/BTCPrivate/copay.git
130 lines
2.8 KiB
JavaScript
130 lines
2.8 KiB
JavaScript
'use strict';
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var _ = require('lodash');
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var preconditions = require('preconditions').singleton();
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var isChromeApp = window.chrome && chrome.runtime && chrome.runtime.id;
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function LocalStorage() {
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this.type = 'DB';
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if (isChromeApp) {
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localStorage = chrome.storage.local;
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window.localStorage = chrome.storage.local;
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}
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preconditions.checkState(typeof localStorage !== 'undefined',
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'localstorage not available, cannot run plugin');
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};
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LocalStorage.prototype.init = function() {};
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LocalStorage.prototype.setCredentials = function(email, password, opts) {
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this.email = email;
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this.password = password;
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};
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LocalStorage.prototype.getItem = function(k, cb) {
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if (isChromeApp) {
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chrome.storage.local.get(k,
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function(data) {
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//TODO check for errors
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return cb(null, data[k]);
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});
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} else {
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return cb(null, localStorage.getItem(k));
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}
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};
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/**
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* Same as setItem, but fails if an item already exists
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*/
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LocalStorage.prototype.createItem = function(name, value, callback) {
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var self = this;
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console.log('createItem ');
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self.getItem(name,
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function(err, data) {
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console.log('error ', err);
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console.log('data ', data);
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if (data) {
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return callback('EEXISTS');
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} else {
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console.log('calling setitem ');
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return self.setItem(name, value, callback);
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}
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});
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};
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LocalStorage.prototype.setItem = function(k, v, cb) {
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if (isChromeApp) {
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var obj = {};
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obj[k] = v;
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chrome.storage.local.set(obj, cb);
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} else {
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localStorage.setItem(k, v);
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return cb();
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}
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};
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LocalStorage.prototype.removeItem = function(k, cb) {
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if (isChromeApp) {
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chrome.storage.remove(k, cb);
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} else {
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localStorage.removeItem(k);
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return cb();
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}
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};
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LocalStorage.prototype.clear = function(cb) {
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if (isChromeApp) {
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chrome.storage.clear();
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} else {
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localStorage.clear();
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}
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return cb();
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};
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LocalStorage.prototype.allKeys = function(cb) {
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if (isChromeApp) {
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chrome.storage.local.get(null, function(items) {
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return cb(null, _.keys(items));
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});
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} else {
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var ret = [];
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var l = localStorage.length;
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for (var i = 0; i < l; i++)
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ret.push(localStorage.key(i));
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return cb(null, ret);
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}
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};
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LocalStorage.prototype.getFirst = function(prefix, opts, cb) {
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opts = opts || {};
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var that = this;
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this.allKeys(function(err, allKeys) {
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var keys = _.filter(allKeys, function(k) {
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if ((k === prefix) || k.indexOf(prefix) === 0) return true;
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});
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if (keys.length === 0)
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return cb(new Error('not found'));
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if (opts.onlyKey)
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return cb(null, null, keys[0]);
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that.getItem(keys[0], function(err, data) {
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if (err) {
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return cb(err);
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}
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return cb(null, data, keys[0]);
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});
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});
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};
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module.exports = LocalStorage;
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