活版印字

submit() {
  var email = this.state.email
  var password =  this.state.password

  if (email && password && !this.state.isSending) {
    AuthActions.login(email, password);
  }
}

module.exports.login = function(email, password) {

  AppDispatcher.dispatch({
    action: AuthConstants.AUTH_SENDING,
  });

  var req = new XMLHttpRequest();
  ...略...
  req.onreadystatechange = function() {
    if (req.readyState !== 4) return;

    AppDispatcher.dispatch({
      action: AuthConstants.AUTH_SENT,
    });

    switch (req.status) {
      case 200:
        AppDispatcher.dispatch({
          action: AuthConstants.AUTH_LOGINED,
          ...略...
        });
    }
  };
  ...略...
};

case AuthConstants.AUTH_SENDING:
  _isSending = true;
  AuthStore.emitChange();
  break;

case AuthConstants.AUTH_SENT:
  _isSending = false;
  AuthStore.emitChange();
  break;