Created
May 5, 2017 18:33
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| const defaultStorageOptions = { | |
| onSuccess: (value) => {}, | |
| onError: (error) => {} | |
| } | |
| /** | |
| * Base class with `abstract` methods. | |
| */ | |
| export class BaseStorage { | |
| /** | |
| * Get a persistent storage item. | |
| * | |
| * @param {string} key | |
| * @param {any} [options=defaultStorageOptions] | |
| * | |
| * @memberOf BaseStorage | |
| */ | |
| getStorageItem(key, options=defaultStorageOptions) { | |
| throw new Error("Abstract method called") | |
| } | |
| /** | |
| * Set a persistent storage item. | |
| * | |
| * @param {string} key | |
| * @param {any} value | |
| * @param {} [options=defaultStorageOptions] | |
| * | |
| * @memberOf BaseStorage | |
| */ | |
| setStorageItem(key, value, options=defaultStorageOptions) { | |
| throw new Error("Abstract method called") | |
| } | |
| removeStorageItem(key, options=defaultStorageOptions) { | |
| throw new Error("Abstract method called") | |
| } | |
| } | |
| export class BaseBrowserStorage extends BaseStorage { | |
| /** | |
| * Base class for the browser storage options (localStorage, sessionStorage). | |
| */ | |
| constructor() { | |
| super() | |
| //if (new.target === BaseBrowserStorage) throw TypeError("abstract class can't be created!") | |
| if (typeof window === 'undefined') throw TypeError("Not in browser but using browser storage ?") | |
| this._storage = null | |
| } | |
| getStorageItem(key, options={isJson: false}) { | |
| const { isJson } = options | |
| let j = this._storage.getItem(key) | |
| if (j && isJson) { | |
| j = JSON.parse(j) | |
| } | |
| return j | |
| } | |
| setStorageItem(key, value, option={}) { | |
| this._storage.setItem(key, typeof(value) !== 'string' ? JSON.stringify(value) : value) | |
| } | |
| removeStorageItem(key) { | |
| this._storage.removeItem(key) | |
| } | |
| } | |
| export class BrowserSessionStorage extends BaseBrowserStorage { | |
| /** | |
| * Container for window.sessionStorage | |
| */ | |
| constructor() { | |
| super() | |
| //noinspection Eslint | |
| this._storage = window.sessionStorage | |
| } | |
| } | |
| export class BrowserLocalStorage extends BaseBrowserStorage { | |
| /** | |
| * Container for window.localStorage | |
| */ | |
| constructor() { | |
| super() | |
| //noinspection Eslint | |
| this._storage = window.localStorage | |
| } | |
| } | |
| /** | |
| * Storage using cookies | |
| */ | |
| export class BrowserCookieStorage extends BaseStorage { | |
| getStorageItem(key, options={}) { | |
| // found on http://stackoverflow.com/questions/5639346/what-is-the-shortest-function-for-reading-a-cookie-by-name-in-javascript | |
| //noinspection Eslint | |
| const cook = document.cookie.match('(^|;)\\s*' + key + '\\s*=\\s*([^;]+)') | |
| return cook ? cook.pop() : '' | |
| } | |
| setStorageItem(key, value, options={expiration:null, cookiepath:null, ...defaultStorageOptions}) { | |
| //noinspection Eslint | |
| const { expiration, cookiepath } = options | |
| document.cookie = `${key}=${value};path=${cookiepath || ''} ;expires=${expiration || ""}} }` | |
| } | |
| removeStorageItem(key) { | |
| //noinspection Eslint | |
| document.cookie = `${key}=; expires=Thu, 01 Jan 1970 00:00:00 UTC;` | |
| } | |
| } | |
| /** | |
| * Will return a base storage with the wanted methods. | |
| * @param {function} getMethod | |
| * @param {function} setMethod | |
| * @param {function} delMethod | |
| * @returns {BaseStorage} | |
| * @constructor | |
| */ | |
| export const CustomStorage = (getMethod, setMethod, delMethod) => { | |
| let storage = new BaseStorage() | |
| storage.prototype.getStorageItem = getMethod | |
| storage.prototype.setStorageItem = setMethod | |
| storage.prototype.removeStorageItem = delMethod | |
| return storage | |
| } |
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