67 lines
1.5 KiB
JavaScript
67 lines
1.5 KiB
JavaScript
const getStorage = (storageType) => {
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const data = window.localStorage.getItem(`__chrome.storage.${storageType}__`)
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if (data != null) {
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return JSON.parse(data)
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} else {
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return {}
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}
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}
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const setStorage = (storageType, storage) => {
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const json = JSON.stringify(storage)
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window.localStorage.setItem(`__chrome.storage.${storageType}__`, json)
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}
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const scheduleCallback = (items, callback) => {
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setTimeout(function () {
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callback(items)
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})
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}
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const getStorageManager = (storageType) => {
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return {
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get (keys, callback) {
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const storage = getStorage(storageType)
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if (keys == null) return scheduleCallback(storage, callback)
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let defaults = {}
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switch (typeof keys) {
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case 'string':
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keys = [keys]
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break
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case 'object':
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if (!Array.isArray(keys)) {
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defaults = keys
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keys = Object.keys(keys)
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}
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break
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}
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if (keys.length === 0) return scheduleCallback({}, callback)
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let items = {}
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keys.forEach(function (key) {
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var value = storage[key]
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if (value == null) value = defaults[key]
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items[key] = value
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})
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scheduleCallback(items, callback)
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},
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set (items, callback) {
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const storage = getStorage(storageType)
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Object.keys(items).forEach(function (name) {
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storage[name] = items[name]
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})
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setStorage(storageType, storage)
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setTimeout(callback)
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}
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}
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}
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module.exports = {
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sync: getStorageManager('sync'),
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local: getStorageManager('local')
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}
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