IO-3000 Adjusted first approach at messaging WS changes.

client/src/components/chat-conversation-list/chat-conversation-list.component.jsx

@@ -1,7 +1,7 @@
 import { Badge, Card, List, Space, Tag } from "antd";
 import React from "react";
 import { connect } from "react-redux";
-import { AutoSizer, CellMeasurer, CellMeasurerCache, List as VirtualizedList } from "react-virtualized";
+import { Virtuoso } from "react-virtuoso";
 import { createStructuredSelector } from "reselect";
 import { setSelectedConversation } from "../../redux/messaging/messaging.actions";
 import { selectSelectedConversation } from "../../redux/messaging/messaging.selectors";
@@ -25,12 +25,7 @@ function ChatConversationListComponent({
   setSelectedConversation,
   loadMoreConversations
 }) {
-  const cache = new CellMeasurerCache({
-    fixedWidth: true,
-    defaultHeight: 60
-  });
-
-  const rowRenderer = ({ index, key, style, parent }) => {
+  const renderConversation = (index) => {
     const item = conversationList[index];
     const cardContentRight = <TimeAgoFormatter>{item.updated_at}</TimeAgoFormatter>;
     const cardContentLeft =
@@ -52,7 +47,8 @@ function ChatConversationListComponent({
         )}
       </>
     );
-    const cardExtra = <Badge count={item.messages_aggregate.aggregate.count || 0} />;
+
+    const cardExtra = <Badge count={item.messages_aggregate.aggregate.count} />;
 
     const getCardStyle = () =>
       item.id === selectedConversation
@@ -60,40 +56,27 @@ function ChatConversationListComponent({
         : { backgroundColor: index % 2 === 0 ? "#f0f2f5" : "#ffffff" };
 
     return (
-      <CellMeasurer key={key} cache={cache} parent={parent} columnIndex={0} rowIndex={index}>
-        <List.Item
-          onClick={() => setSelectedConversation(item.id)}
-          style={style}
-          className={`chat-list-item
-    ${item.id === selectedConversation ? "chat-list-selected-conversation" : null}`}
-        >
-          <Card style={getCardStyle()} bordered={false} size="small" extra={cardExtra} title={cardTitle}>
-            <div style={{ display: "inline-block", width: "70%", textAlign: "left" }}>{cardContentLeft}</div>
-            <div style={{ display: "inline-block", width: "30%", textAlign: "right" }}>{cardContentRight}</div>
-          </Card>
-        </List.Item>
-      </CellMeasurer>
+      <List.Item
+        key={item.id}
+        onClick={() => setSelectedConversation(item.id)}
+        className={`chat-list-item ${item.id === selectedConversation ? "chat-list-selected-conversation" : ""}`}
+      >
+        <Card style={getCardStyle()} bordered={false} size="small" extra={cardExtra} title={cardTitle}>
+          <div style={{ display: "inline-block", width: "70%", textAlign: "left" }}>{cardContentLeft}</div>
+          <div style={{ display: "inline-block", width: "30%", textAlign: "right" }}>{cardContentRight}</div>
+        </Card>
+      </List.Item>
     );
   };
 
   return (
     <div className="chat-list-container">
-      <AutoSizer>
-        {({ height, width }) => (
-          <VirtualizedList
-            height={height}
-            width={width}
-            rowCount={conversationList.length}
-            rowHeight={cache.rowHeight}
-            rowRenderer={rowRenderer}
-            onScroll={({ scrollTop, scrollHeight, clientHeight }) => {
-              if (scrollTop + clientHeight === scrollHeight) {
-                loadMoreConversations();
-              }
-            }}
-          />
-        )}
-      </AutoSizer>
+      <Virtuoso
+        data={conversationList}
+        itemContent={(index) => renderConversation(index)}
+        style={{ height: "100%", width: "100%" }}
+        endReached={loadMoreConversations} // Calls loadMoreConversations when scrolled to the bottom
+      />
     </div>
   );
 }