botframework-webchat-component/lib/Middleware/Activity/createCoreMiddleware.js

React component of botframework-webchat

"use strict";

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

var _react = _interopRequireDefault(require("react"));

var _CarouselLayout = _interopRequireDefault(require("../../Activity/CarouselLayout"));

var _StackedLayout = _interopRequireDefault(require("../../Activity/StackedLayout"));

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

function _extends() { _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; }; return _extends.apply(this, arguments); }

function createCoreMiddleware() {
  return [function () {
    return function (next) {
      return function () {
        for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
          args[_key] = arguments[_key];
        }

        var activity = args[0].activity; // TODO: [P4] Can we simplify these if-statement to something more readable?

        var type = activity.type; // Filter out activities that should not be visible

        if (type === 'conversationUpdate' || type === 'event' || type === 'invoke' || type === 'typing') {
          return false;
        } else if (type === 'message') {
          var _activity$attachments = activity.attachments,
              attachments = _activity$attachments === void 0 ? [] : _activity$attachments,
              channelData = activity.channelData,
              text = activity.text;

          if ( // Do not show postback
          channelData && channelData.postBack || // Do not show messageBack if displayText is undefined
          channelData && channelData.messageBack && !channelData.messageBack.displayText || // Do not show empty bubbles (no text and attachments, and not "typing")
          !(text || attachments.length)) {
            return false;
          } // eslint-disable-next-line no-dupe-else-if

        } else if (type === 'typing' && activity.from.role === 'user') {
          // Do not show typing by oneself
          return false;
        }

        if (type === 'message' || type === 'typing') {
          if (type === 'message' && (activity.attachments || []).length > 1 && activity.attachmentLayout === 'carousel') {
            // The following line is not a React functional component, it's a render function called by useCreateActivityRenderer() hook.
            // The function signature need to be compatible with older version of activity middleware, which was:
            //
            // renderActivity(
            //   renderAttachment: ({ activity, attachment }) => React.Element
            // ) => React.Element
            return function renderCarouselLayout(renderAttachment, props) {
              typeof props === 'undefined' && console.warn('botframework-webchat: One or more arguments were missing after passing through the activity middleware. Please check your custom activity middleware to make sure it passes all arguments.');
              return /*#__PURE__*/_react.default.createElement(_CarouselLayout.default, _extends({
                activity: activity,
                renderAttachment: renderAttachment
              }, props));
            };
          } // The following line is not a React functional component, it's a render function called by useCreateActivityRenderer() hook.


          return function renderStackedLayout(renderAttachment, props) {
            typeof props === 'undefined' && console.warn('botframework-webchat: One or more arguments were missing after passing through the activity middleware. Please check your custom activity middleware to make sure it passes all arguments.');
            return /*#__PURE__*/_react.default.createElement(_StackedLayout.default, _extends({
              activity: activity,
              renderAttachment: renderAttachment
            }, props));
          };
        }

        return next.apply(void 0, args);
      };
    };
  }];
}
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