willow-utils/lib/storageUtil.js

工具库

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.set2Session = exports.set2Local = exports.removeFromSession = exports.removeFromLocal = exports.obj2json = exports.json2obj = exports.getFromSession = exports.getFromLocal = exports.default = void 0;

var _memoize = _interopRequireDefault(require("lodash/memoize"));

var _throttle = _interopRequireDefault(require("lodash/throttle"));

var _commonUtil = require("./commonUtil");

var _global = _interopRequireDefault(require("global"));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }

function clearCacheSync() {
  getFromSession.cache.clear();
  getFromLocal.cache.clear();
}

var clearCacheAsync = (0, _throttle.default)(clearCacheSync, 1000, {
  leading: false
});
var runtimeSession = _global.default.__meo_runtimeSession = _global.default.__meo_runtimeSession || {};
var runtimeLocal = _global.default.__meo_runtimeLocal = _global.default.__meo_runtimeLocal || {};

function getFromRuntimeStorage(storage, key) {
  if (!(key in storage)) return null;
  return storage[key];
}

var obj2json = function obj2json(obj) {
  if (obj === undefined) return 'undefined';
  return JSON.stringify(obj);
};

exports.obj2json = obj2json;

var json2obj = function json2obj(jsonStr) {
  if (jsonStr === '') return null;
  if (jsonStr === 'undefined') return undefined;
  return JSON.parse(jsonStr);
};

exports.json2obj = json2obj;

function checkExpire(obj, key) {
  if (_typeof(obj) == 'object' && obj && /^__storage_expire_timestamp(,__storage_value_object)?$/.test(Object.keys(obj).join(','))) {
    var expire = obj.__storage_expire_timestamp,
        value = obj.__storage_value_object;

    if (typeof expire == 'number' && expire < Date.now()) {
      return removeFromLocal(key);
    } else {
      return value;
    }
  }

  return obj;
}

var set2Session = function set2Session(key, value) {
  clearCacheSync();

  if ((0, _commonUtil.inBrowser)()) {
    sessionStorage.setItem(key, obj2json(value));
  } else {
    runtimeSession[key] = obj2json(value);
  }
};

exports.set2Session = set2Session;

var set2Local = function set2Local(key, value) {
  var expire = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
  clearCacheSync();
  if (expire instanceof Date) expire = expire.getTime();
  if (typeof expire == 'number' && expire < Date.now()) return removeFromLocal(key);
  value = {
    __storage_expire_timestamp: expire,
    __storage_value_object: value
  };

  if ((0, _commonUtil.inBrowser)()) {
    localStorage.setItem(key, obj2json(value));
  } else {
    runtimeLocal[key] = obj2json(value);
  }
};

exports.set2Local = set2Local;
var getFromSession = (0, _memoize.default)(function (key) {
  clearCacheAsync();

  if ((0, _commonUtil.inBrowser)()) {
    var jsonStr = sessionStorage.getItem(key);
    return json2obj(jsonStr);
  } else {
    var _jsonStr = getFromRuntimeStorage(runtimeSession, key);

    return json2obj(_jsonStr);
  }
});
exports.getFromSession = getFromSession;
var getFromLocal = (0, _memoize.default)(function (key) {
  clearCacheAsync();
  var value;

  if ((0, _commonUtil.inBrowser)()) {
    var jsonStr = localStorage.getItem(key);
    value = json2obj(jsonStr);
  } else {
    var _jsonStr2 = getFromRuntimeStorage(runtimeLocal, key);

    value = json2obj(_jsonStr2);
  }

  return checkExpire(value, key);
});
exports.getFromLocal = getFromLocal;

var removeFromSession = function removeFromSession(key) {
  clearCacheSync();

  if ((0, _commonUtil.inBrowser)()) {
    sessionStorage.removeItem(key);
  } else {
    delete runtimeSession[key];
  }
};

exports.removeFromSession = removeFromSession;

var removeFromLocal = function removeFromLocal(key) {
  clearCacheSync();

  if ((0, _commonUtil.inBrowser)()) {
    localStorage.removeItem(key);
  } else {
    delete runtimeLocal[key];
  }
};

exports.removeFromLocal = removeFromLocal;
var _default = {
  obj2json: obj2json,
  json2obj: json2obj,
  set2Session: set2Session,
  set2Local: set2Local,
  getFromSession: getFromSession,
  getFromLocal: getFromLocal,
  removeFromSession: removeFromSession,
  removeFromLocal: removeFromLocal
};
exports.default = _default;
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