stream-chat-react-native-core/lib/module/components/MessageList/hooks/useMessageList.js

The official React Native and Expo components for Stream Chat, a service for building chat applications

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.useMessageList = void 0;
var _react = require("react");
var _PaginatedMessageListContext = require("../../../contexts/paginatedMessageListContext/PaginatedMessageListContext");
var _ThreadContext = require("../../../contexts/threadContext/ThreadContext");
var _hooks = require("../../../hooks");
var useMessageList = params => {
  var threadList = params.threadList,
    isLiveStreaming = params.isLiveStreaming,
    _params$isFlashList = params.isFlashList,
    isFlashList = _params$isFlashList === void 0 ? false : _params$isFlashList;
  var _usePaginatedMessageL = (0, _PaginatedMessageListContext.usePaginatedMessageListContext)(),
    messages = _usePaginatedMessageL.messages,
    viewabilityChangedCallback = _usePaginatedMessageL.viewabilityChangedCallback;
  var _useThreadContext = (0, _ThreadContext.useThreadContext)(),
    threadMessages = _useThreadContext.threadMessages;
  var messageList = threadList ? threadMessages : messages;
  var processedMessageList = (0, _react.useMemo)(() => {
    var newMessageList = [];
    for (var message of messageList) {
      if (isFlashList) {
        newMessageList.push(message);
      } else {
        newMessageList.unshift(message);
      }
    }
    return newMessageList;
  }, [messageList, isFlashList]);
  var data = (0, _hooks.useRAFCoalescedValue)(processedMessageList, isLiveStreaming);
  return (0, _react.useMemo)(() => ({
    processedMessageList: data,
    rawMessageList: messageList,
    viewabilityChangedCallback
  }), [data, messageList, viewabilityChangedCallback]);
};
exports.useMessageList = useMessageList;
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