redux-signal/es/createContainer.js

A scalable solution for modals using React and Redux

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

import React from 'react';
import PropTypes from 'prop-types';
import { connect } from 'react-redux';
import { Map, List } from 'immutable';
import { getModal, getSignal } from './selectors';
import { getSignalModalId } from './utils';

import { destroySignal, signalEvent, setModalState, feedbackQueueShift } from './actions';

import * as ModalEvents from './constants/SignalEvents';
import * as ModalStates from './constants/ModalStates';

var createContainer = function createContainer(Modal) {
  var SignalContainer = function (_React$Component) {
    _inherits(SignalContainer, _React$Component);

    function SignalContainer() {
      _classCallCheck(this, SignalContainer);

      return _possibleConstructorReturn(this, (SignalContainer.__proto__ || Object.getPrototypeOf(SignalContainer)).apply(this, arguments));
    }

    _createClass(SignalContainer, [{
      key: 'componentWillMount',
      value: function componentWillMount() {
        this.props.updateModals();
      }
    }, {
      key: 'componentWillReceiveProps',
      value: function componentWillReceiveProps(nextProps) {
        nextProps.updateModals();
        nextProps.handleEventFeedback();
      }
    }, {
      key: 'render',
      value: function render() {
        var _props = this.props,
            modals = _props.modals,
            rawModal = _props.rawModal,
            onModalExited = _props.onModalExited,
            onModalClose = _props.onModalClose,
            onModalEvent = _props.onModalEvent;


        return modals.map(function (modal) {
          var id = modal.get('id');
          var currentRawModal = rawModal.get(id);

          return React.createElement(Modal, {
            key: 'signal-' + id,
            event: onModalEvent,
            destroy: function destroy() {
              return onModalExited(id);
            },
            close: function close() {
              return onModalClose(id);
            },
            modal: _extends({}, modal.toJS(), currentRawModal)
          });
        });
      }
    }]);

    return SignalContainer;
  }(React.Component);

  SignalContainer.propTypes = {
    updateModals: PropTypes.func.isRequired,
    handleEventFeedback: PropTypes.func.isRequired,
    onModalExited: PropTypes.func.isRequired,
    onModalClose: PropTypes.func.isRequired,
    onModalEvent: PropTypes.func.isRequired,
    modals: PropTypes.instanceOf(List),
    rawModal: PropTypes.instanceOf(Map)
  };


  var mapStateToProps = function mapStateToProps(state) {
    var modals = getSignal(state);

    var rawModal = Map(modals.map(function (modal) {
      return [modal.get('id'), getModal(getSignalModalId(modal.get('id')))(state)];
    }));

    var eventFeedback = Map(modals.map(function (modal) {
      var feedback = null;

      var eventQueueId = modal.get('eventHandlerId');
      if (eventQueueId) {
        var events = state.signal.getIn(['signal', 'feedbackQueue', eventQueueId]);

        if (events && events.size > 0) {
          feedback = events.first();
        }
      }

      return [modal.get('id'), feedback];
    }));

    return {
      eventFeedback: eventFeedback,
      modals: modals,
      rawModal: rawModal
    };
  };

  var mapDispatchToProps = function mapDispatchToProps(dispatch) {
    return {
      dispatch: dispatch,

      onModalExited: function onModalExited(modalId) {
        dispatch(destroySignal(modalId));
      },

      onModalClose: function onModalClose(modalId) {
        dispatch(signalEvent(modalId, ModalEvents.CLOSE));
        dispatch(setModalState(modalId, ModalStates.DESTROYED));
      }
    };
  };

  var mergeProps = function mergeProps(stateProps, dispatchProps) {
    var eventFeedback = stateProps.eventFeedback,
        modals = stateProps.modals,
        rawModal = stateProps.rawModal;
    var dispatch = dispatchProps.dispatch;


    return _extends({}, stateProps, dispatchProps, {

      handleEventFeedback: function handleEventFeedback() {
        modals.forEach(function (modal) {
          var event = eventFeedback.get(modal.get('id'));

          if (!event) {
            return;
          }

          var modalId = modal.get('id');

          dispatch(feedbackQueueShift(modal.get('eventHandlerId')));

          // By default, BTN_* events trigger modal close
          if (event.type.startsWith('BTN_')) {
            dispatch(signalEvent(modalId, ModalEvents.CLOSE));
            dispatch(setModalState(modalId, ModalStates.DESTROYED));
          }
        });
      },

      onModalEvent: function onModalEvent(modal, eventType) {
        var modalId = modal.id;

        if (modal.eventHandlerId) {
          dispatch(signalEvent(modalId, eventType));
        } else {
          // If we do not have an event handler, just close the modal on any button
          if (eventType.startsWith('BTN_')) {
            dispatch(setModalState(modalId, ModalStates.DESTROYED));
          }
        }
      },

      updateModals: function updateModals() {
        modals.forEach(function (modal) {
          var modalId = modal.get('id');
          var state = rawModal.getIn([modalId]).state;

          switch (state) {
            case ModalStates.CREATED:
              dispatch(setModalState(modalId, ModalStates.VISIBLE));
              break;
          }
        });
      }
    });
  };

  return connect(mapStateToProps, mapDispatchToProps, mergeProps)(SignalContainer);
};

export default createContainer;