BackendStore.js

BackendStore.js

define(function () {
  var exports = {};

  var _store = {};
  var _isReady = false;
  var _callback = [];

  var doReady = function () {
    var i, len;
    if (_isReady) {
      return;
    }
    _isReady = true;
    while (_callback.length > 0) {
      _callback.shift()(exports);
    }
  };

  var onReady = function (callback) {
    if (_isReady) {
      callback(exports);
    } else {
      _callback.push(callback);
    }
  };

  var ready = function (callback) {
    if (arguments.length === 0) {
      doReady();
    } else {
      onReady(callback);
    }
  };

  var set = function (key, data) {
    _store[key] = data;
  };

  var get = function (key, callback) {
    if (arguments.length === 1) {
      return _store[key];
    } else {
      onReady(function (store) {
        callback(store.get(key));
      });
    }
  };

  exports.set = set;
  exports.get = get;
  exports.ready = ready;

  // window.BackendStore = exports;
  return exports;

});