meses-messaging/dist/ui/components/MessagingPopup/MessageList/MessageListBody/index.js

Meses messaging SDK in JavaScript

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

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; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _moment = require('moment');

var _moment2 = _interopRequireDefault(_moment);

var _Divider = require('./Divider');

var _Divider2 = _interopRequireDefault(_Divider);

var _MessageEntry = require('./MessageEntry');

var _MessageEntry2 = _interopRequireDefault(_MessageEntry);

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

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; }

var styles = {
  'messageListBody': 'styles-messageListBody-2pHKZ',
  'moreMessage': 'styles-moreMessage-20or9'
};

var MessageListBody = function (_React$Component) {
  _inherits(MessageListBody, _React$Component);

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

    return _possibleConstructorReturn(this, (MessageListBody.__proto__ || Object.getPrototypeOf(MessageListBody)).call(this));
  }

  _createClass(MessageListBody, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var loadMoreMessage = this.props.loadMoreMessage;


      this.container.addEventListener('scroll', function () {
        if (this.container.scrollTop == 0) loadMoreMessage();
      }.bind(this));
    }
  }, {
    key: 'componentWillUpdate',
    value: function componentWillUpdate(nextProps, nextState) {
      this.scrollBottom = this.container.scrollTop == this.container.scrollHeight - this.container.offsetHeight;
      this.tmpScrollTop = this.container.scrollHeight;
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate(prevProps, prevState) {
      if (prevProps.messageList.length == 0) this.container.scrollTop = this.container.scrollHeight;else if (this.props.messageList.length > prevProps.messageList.length) this.container.scrollTop = this.container.scrollHeight - this.tmpScrollTop;

      if (this.scrollBottom) this.container.scrollTop = this.container.scrollHeight;
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var _props = this.props,
          messageList = _props.messageList,
          messageBuffer = _props.messageBuffer,
          connectedUsername = _props.connectedUsername,
          hasMoreMessage = _props.hasMoreMessage;

      var entries = [];

      var prevDate = null;
      var oneYearMillis = 365 * 24 * 60 * 60 * 1000;
      var dateFormat = function dateFormat(time, format) {
        var dateTime = (0, _moment2.default)(time);
        return dateTime.isValid() ? dateTime.format(format) : '-';
      };

      messageList.concat(messageBuffer).forEach(function (x, i) {
        var timeDiff = new Date().getTime() - x.messageId;
        var format = timeDiff >= oneYearMillis ? 'MM/DD/YYYY' : 'ddd, MMM Do';
        var date = dateFormat(x.messageId, format);
        if (date !== prevDate) {
          entries.push(_react2.default.createElement(_Divider2.default, { key: date, content: date }));
          prevDate = date;
        }

        entries.push(_react2.default.createElement(_MessageEntry2.default, {
          key: x.messageId,
          time: x.messageId,
          message: x.message,
          alignRight: x.creatorName == connectedUsername,
          sender: x.displayName ? x.displayName : x.creatorName }));
      });

      var hasMoreDiv = _react2.default.createElement(
        'div',
        { className: styles.moreMessage },
        'Retrieving more messages'
      );

      return _react2.default.createElement(
        'div',
        { className: styles.messageListBody, ref: function ref(x) {
            return _this2.container = x;
          } },
        hasMoreMessage ? hasMoreDiv : '',
        entries
      );
    }
  }]);

  return MessageListBody;
}(_react2.default.Component);

exports.default = MessageListBody;