refactor: message feed

src/routes/chat/ChannelChat/Members.tsx

@@ -1,8 +1,8 @@
 import { useRef, useState } from 'react';
 import { ViewportList } from 'react-viewport-list';
+import { useTranslation } from 'react-i18next';
 import User from "../../../common/component/User";
 import IconAdd from "../../../assets/icons/add.svg";
-import { useTranslation } from 'react-i18next';
 import InviteModal from "../../../common/component/InviteModal";
 
 
@@ -16,9 +16,7 @@ type Props = {
 
 const Members = ({ uids, addVisible, ownerId, cid, membersVisible }: Props) => {
     const { t } = useTranslation("chat");
-    const ref = useRef<HTMLDivElement | null>(
-        null,
-    );
+    const ref = useRef<HTMLDivElement | null>(null);
     const [addMemberModalVisible, setAddMemberModalVisible] = useState(false);
     const toggleAddVisible = () => {
         setAddMemberModalVisible((prev) => !prev);
@@ -34,6 +32,7 @@ const Members = ({ uids, addVisible, ownerId, cid, membersVisible }: Props) => {
                     </div>
                 )}
                 <ViewportList
+                    initialPrerender={15}
                     viewportRef={ref}
                     items={uids}
                 >

src/routes/chat/ChannelChat/index.tsx

@@ -1,24 +1,17 @@
 import { useState, useEffect, memo } from "react";
-import { useDebounce } from "rooks";
-import { NavLink, useLocation } from "react-router-dom";
+import { useLocation } from "react-router-dom";
 import Tippy from "@tippyjs/react";
 import { useDispatch } from "react-redux";
 import PinList from "./PinList";
 import FavList from "../FavList";
-import { useReadMessageMutation } from "../../../app/services/message";
 import { updateRememberedNavs } from "../../../app/slices/ui";
-import useMessageFeed from "../../../common/hook/useMessageFeed";
 import ChannelIcon from "../../../common/component/ChannelIcon";
 import Tooltip from "../../../common/component/Tooltip";
 import Layout from "../Layout";
-import { renderMessageFragment } from "../utils";
-import EditIcon from "../../../assets/icons/edit.svg";
 import IconFav from "../../../assets/icons/bookmark.svg";
 import IconPeople from "../../../assets/icons/people.svg";
 import IconPin from "../../../assets/icons/pin.svg";
 
-
-import LoadMore from "../LoadMore";
 import { useAppSelector } from "../../../app/store";
 import { useTranslation } from "react-i18next";
 import GoBackNav from "../../../common/component/GoBackNav";
@@ -29,37 +22,19 @@ type Props = {
 };
 function ChannelChat({ cid = 0, dropFiles = [] }: Props) {
   const { t } = useTranslation("chat");
-  const {
-    pulling,
-    list: msgIds,
-    appends,
-    hasMore,
-    pullUp
-  } = useMessageFeed({
-    context: "channel",
-    id: cid
-  });
   const { pathname } = useLocation();
   const dispatch = useDispatch();
-  const [updateReadIndex] = useReadMessageMutation();
-  const updateReadDebounced = useDebounce(updateReadIndex, 300);
   const [membersVisible, setMembersVisible] = useState(true);
 
   const {
-    selects,
     userIds,
     data,
-    messageData,
     loginUser,
-    footprint
   } = useAppSelector((store) => {
     return {
-      selects: store.ui.selectMessages[`channel_${cid}`],
-      footprint: store.footprint,
       loginUser: store.authData.user,
       userIds: store.users.ids,
       data: store.channels.byId[cid],
-      messageData: store.message || {}
     };
   });
   useEffect(() => {
@@ -77,9 +52,7 @@ function ChannelChat({ cid = 0, dropFiles = [] }: Props) {
   const { name, description, is_public, members = [], owner } = data;
   const memberIds = is_public ? userIds : members.slice(0).sort((n) => (n == owner ? -1 : 0));
   const addVisible = loginUser?.is_admin || owner == loginUser?.uid;
-  const readIndex = footprint.readChannels[cid];
   const pinCount = data?.pinned_messages?.length || 0;
-  const feeds = [...msgIds, ...appends];
   const toolClass = `relative cursor-pointer`;
   return (
     <>
@@ -142,40 +115,7 @@ function ChannelChat({ cid = 0, dropFiles = [] }: Props) {
         users={
           <Members uids={memberIds} addVisible={addVisible} cid={cid} ownerId={owner} membersVisible={membersVisible} />
         }
-      >
-        <>
-          {hasMore ? (
-            <LoadMore pullUp={pullUp} pulling={pulling} />
-          ) : (
-            <div className="pt-14 px-1 md:px-0 flex flex-col items-start gap-2">
-              <h2 className="font-bold text-4xl dark:text-white">{t("welcome_channel", { name })}</h2>
-              <p className="text-gray-600 dark:text-gray-300">{t("welcome_desc", { name })} </p>
-              {loginUser?.is_admin && (
-                <NavLink to={`/setting/channel/${cid}?f=${pathname}`} className="flex items-center gap-1 bg-clip-text text-fill-transparent bg-gradient-to-r from-blue-500 to-primary-400 ">
-                  <EditIcon className="w-4 h-4 fill-blue-500" />
-                  {t("edit_channel")}
-                </NavLink>
-              )}
-            </div>
-          )}
-          {feeds.map((mid, idx) => {
-            const curr = messageData[mid];
-            if (!curr) return null;
-            const isFirst = idx == 0;
-            const prev = isFirst ? null : messageData[feeds[idx - 1]];
-            const read = curr?.from_uid == loginUser?.uid || mid <= readIndex;
-            return renderMessageFragment({
-              selectMode: !!selects,
-              updateReadIndex: updateReadDebounced,
-              read,
-              prev,
-              curr,
-              contextId: cid,
-              context: "channel"
-            });
-          })}
-        </>
-      </Layout>
+      />
     </>
   );
 }

src/routes/chat/DMChat/index.tsx

@@ -1,15 +1,10 @@
 import { FC } from "react";
-import { useDebounce } from "rooks";
 import Tippy from "@tippyjs/react";
 import FavList from "../FavList";
 import Tooltip from "../../../common/component/Tooltip";
 import FavIcon from "../../../assets/icons/bookmark.svg";
-import { useReadMessageMutation } from "../../../app/services/message";
 import User from "../../../common/component/User";
 import Layout from "../Layout";
-import LoadMore from "../LoadMore";
-import { renderMessageFragment } from "../utils";
-import useMessageFeed from "../../../common/hook/useMessageFeed";
 import { useAppSelector } from "../../../app/store";
 import GoBackNav from "../../../common/component/GoBackNav";
 type Props = {
@@ -17,30 +12,12 @@ type Props = {
   dropFiles?: File[];
 };
 const DMChat: FC<Props> = ({ uid = 0, dropFiles }) => {
-  const {
-    pulling,
-    list: msgIds,
-    appends,
-    hasMore,
-    pullUp
-  } = useMessageFeed({
-    context: "user",
-    id: uid
-  });
-  const [updateReadIndex] = useReadMessageMutation();
-  const updateReadDebounced = useDebounce(updateReadIndex, 300);
-  const { currUser, messageData, footprint, loginUid, selects } = useAppSelector((store) => {
+  const { currUser } = useAppSelector((store) => {
     return {
-      selects: store.ui.selectMessages[`user_${uid}`],
-      loginUid: store.authData.user?.uid,
-      footprint: store.footprint,
       currUser: store.users.byId[uid],
-      messageData: store.message
     };
   });
   if (!currUser) return null;
-  const readIndex = footprint.readUsers[uid];
-  const feeds = [...msgIds, ...appends];
   return (
     <Layout
       to={uid}
@@ -70,25 +47,7 @@ const DMChat: FC<Props> = ({ uid = 0, dropFiles }) => {
           <User interactive={false} uid={currUser.uid} />
         </header>
       }
-    >
-      <>
-        {hasMore ? <LoadMore pullUp={pullUp} pulling={pulling} /> : null}
-        {[...feeds].map((mid, idx) => {
-          const curr = messageData[mid];
-          const prev = idx == 0 ? null : messageData[feeds[idx - 1]];
-          const read = curr?.from_uid == loginUid || mid <= readIndex;
-          return renderMessageFragment({
-            selectMode: !!selects,
-            updateReadIndex: updateReadDebounced,
-            read,
-            prev,
-            curr,
-            contextId: uid,
-            context: "user"
-          });
-        })}
-      </>
-    </Layout>
+    />
   );
 };
 export default DMChat;

src/routes/chat/Layout/MessageFeed.tsx

@@ -0,0 +1,95 @@
+import { useEffect, useRef } from 'react';
+import { useTranslation } from 'react-i18next';
+import { NavLink, useLocation } from 'react-router-dom';
+import { useDebounce } from 'rooks';
+import { ViewportList } from 'react-viewport-list';
+
+import { useReadMessageMutation } from '../../../app/services/message';
+import { useAppSelector } from '../../../app/store';
+import EditIcon from "../../../assets/icons/edit.svg";
+import { renderMessageFragment } from '../utils';
+
+
+type Props = {
+    context: "user" | "channel",
+    id: number
+}
+
+const MessageFeed = ({ context, id }: Props) => {
+    // const listRef = useRef<ViewportListRef | null>(null);
+    const ref = useRef<HTMLDivElement | null>(
+        null,
+    );
+    const { t } = useTranslation("chat");
+    const { pathname } = useLocation();
+    const [updateReadIndex] = useReadMessageMutation();
+    const updateReadDebounced = useDebounce(updateReadIndex, 300);
+    const {
+        mids,
+        selects,
+        data,
+        messageData,
+        loginUser,
+        footprint
+    } = useAppSelector((store) => {
+        return {
+            mids: context == "user" ? store.userMessage.byId[id] : store.channelMessage[id],
+            selects: store.ui.selectMessages[`${context}_${id}`],
+            footprint: store.footprint,
+            loginUser: store.authData.user,
+            data: context == "channel" ? store.channels.byId[id] : undefined,
+            messageData: store.message || {}
+        };
+    });
+    // useEffect(() => {
+    //     //   滚动到记忆位置
+    //     if (listRef && listRef.current) {
+    //         listRef.current.scrollToIndex({ index: 5 });
+    //     }
+    // }, [context, id]);
+
+    const readIndex = context == "channel" ? footprint.readChannels[id] : Number.POSITIVE_INFINITY;
+    const isEmptyList = !mids || mids.length == 0;
+    return (
+        <article ref={ref} id={`VOCECHAT_FEED_${context}_${id}`} className="w-full h-full px-1 md:px-4 py-4.5 overflow-x-hidden overflow-y-scroll will-change-contents">
+            {context == "channel" && <div className="pt-14 px-1 md:px-0 flex flex-col items-start gap-2">
+                <h2 className="font-bold text-4xl dark:text-white">{t("welcome_channel", { name: data?.name })}</h2>
+                <p className="text-gray-600 dark:text-gray-300">{t("welcome_desc", { name: data?.name })} </p>
+                {loginUser?.is_admin && (
+                    <NavLink to={`/setting/channel/${id}/overview?f=${pathname}`} className="flex items-center gap-1 bg-clip-text text-fill-transparent bg-gradient-to-r from-blue-500 to-primary-400 ">
+                        <EditIcon className="w-4 h-4 fill-blue-500" />
+                        {t("edit_channel")}
+                    </NavLink>
+                )}
+            </div>}
+            {isEmptyList ? null : <ViewportList
+                overscan={10}
+                // itemSize={100}
+                initialPrerender={50}
+                scrollThreshold={2000}
+                // ref={listRef}
+                viewportRef={ref}
+                items={mids}
+            >
+                {((mid, idx) => {
+                    const curr = messageData[mid];
+                    if (!curr) return null;
+                    const isFirst = idx == 0;
+                    const prev = isFirst ? null : messageData[mids[idx - 1]];
+                    const read = curr?.from_uid == loginUser?.uid || mid <= readIndex;
+                    return renderMessageFragment({
+                        selectMode: !!selects,
+                        updateReadIndex: updateReadDebounced,
+                        read,
+                        prev,
+                        curr,
+                        contextId: id,
+                        context
+                    });
+                })}
+            </ViewportList>}
+        </article>
+    );
+};
+
+export default MessageFeed;

src/routes/chat/Layout/index.tsx

@@ -15,10 +15,10 @@ import LicenseUpgradeTip from "./LicenseOutdatedTip";
 import DnDTip from "./DnDTip";
 import IconWarning from '../../../assets/icons/warning.svg';
 import ImagePreview from "../../../common/component/ImagePreview";
+import MessageFeed from "./MessageFeed";
 
 interface Props {
   readonly?: boolean;
-  children: ReactElement;
   header: ReactElement;
   aside?: ReactElement | null;
   users?: ReactElement | null;
@@ -29,7 +29,6 @@ interface Props {
 
 const Layout: FC<Props> = ({
   readonly = false,
-  children,
   header,
   aside = null,
   users = null,
@@ -97,9 +96,7 @@ const Layout: FC<Props> = ({
           <div className="w-full h-full flex items-start justify-between relative" >
             <div className="rounded-br-2xl flex flex-col absolute bottom-0 w-full h-full" ref={messagesContainer}>
               {/* 消息流 */}
-              <article id={`VOCECHAT_FEED_${context}_${to}`} className="w-full h-full px-1 md:px-4 py-4.5 overflow-x-hidden overflow-y-scroll">
-                {children}
-              </article>
+              <MessageFeed context={context} id={to} />
               {/* 发送框 */}
               <div className={`px-2 py-0 md:p-4 ${selects ? "selecting" : ""}`}>
                 {readonly ? (

src/routes/chat/SessionList/index.tsx

@@ -1,20 +1,21 @@
-import { FC } from "react";
+import { FC, useRef } from "react";
 import { useState, useEffect } from "react";
+import { ViewportList } from "react-viewport-list";
 import Session from "./Session";
 import DeleteChannelConfirmModal from "../../settingChannel/DeleteConfirmModal";
 import InviteModal from "../../../common/component/InviteModal";
 import { useAppSelector } from "../../../app/store";
 export interface ChatSession {
-  key: string;
   type: "user" | "channel";
   id: number;
-  mid?: number;
-  unread?: number;
+  mid: number;
+  unread: number;
 }
 type Props = {
   tempSession?: ChatSession;
 };
 const SessionList: FC<Props> = ({ tempSession }) => {
+  const ref = useRef<HTMLUListElement | null>(null);
   const [deleteId, setDeleteId] = useState<number>();
   const [inviteChannelId, setInviteChannelId] = useState<number>();
   const [sessions, setSessions] = useState<ChatSession[]>([]);
@@ -35,27 +36,31 @@ const SessionList: FC<Props> = ({ tempSession }) => {
     const cSessions = channelIDs.map((id) => {
       const mids = channelMessage[id];
       if (!mids || mids.length == 0) {
-        return { key: `channel_${id}`, unreads: 0, id, type: "channel" };
+        return { unreads: 0, id, type: "channel" };
       }
       // 先转换成数字，再排序
       const mid = [...mids].sort((a, b) => +a - +b).pop();
-      return { key: `channel_${id}`, id, mid, type: "channel" };
+      return { id, mid, type: "channel" };
     });
     const uSessions = DMs.map((id) => {
+      console.log("adddd", id);
       const mids = userMessage[id];
       if (!mids || mids.length == 0) {
-        return { key: `user_${id}`, unreads: 0, id, type: "user" };
+        return { unreads: 0, id, type: "user" };
       }
       // 先转换成数字，再排序
       const mid = [...mids].sort((a, b) => +a - +b).pop();
-      return { key: `user_${id}`, type: "user", id, mid };
+      return { type: "user", id, mid };
     });
     const temps = [...(cSessions as ChatSession[]), ...(uSessions as ChatSession[])].sort((a, b) => {
       const { mid: aMid = 0 } = a;
       const { mid: bMid = 0 } = b;
       return bMid - aMid;
     });
-    setSessions(tempSession ? [tempSession, ...temps] : temps);
+    console.log("before qqqq", temps);
+    const newSessions = tempSession ? [tempSession, ...temps] : temps;
+    console.log("qqqq", newSessions);
+    setSessions(newSessions);
   }, [
     channelIDs,
     DMs,
@@ -66,11 +71,19 @@ const SessionList: FC<Props> = ({ tempSession }) => {
     userMessage,
     tempSession
   ]);
+
   return (
     <>
-      <ul className="flex flex-col gap-0.5 p-2 overflow-auto">
-        {sessions.map((s) => {
-          const { key, type, id, mid = 0 } = s;
+      <ul ref={ref} className="flex flex-col gap-0.5 p-2 overflow-auto">
+        <ViewportList
+          initialPrerender={10}
+          viewportRef={ref}
+          items={sessions}
+        >
+          {(s) => {
+            console.log("ssss", sessions);
+            const { type, id, mid = 0 } = s;
+            const key = `${type}_${id}`;
             return (
               <Session
                 key={key}
@@ -81,7 +94,8 @@ const SessionList: FC<Props> = ({ tempSession }) => {
                 setDeleteChannelId={setDeleteId}
               />
             );
-        })}
+          }}
+        </ViewportList>
       </ul>
       {!!deleteId && (
         <DeleteChannelConfirmModal

src/routes/chat/index.tsx

@@ -36,15 +36,15 @@ function ChatPage() {
   const toggleSessionList = () => {
     setSessionListVisible(prev => !prev);
   };
-  const tmpSession =
-    sessionUids.findIndex((i) => i == user_id) > -1
-      ? undefined
-      : {
-        key: `user_${user_id}`,
-        unreads: 0,
+  const tmpSession = user_id == 0 ? undefined :
+    sessionUids.findIndex((i) => i == +user_id) == -1
+      ? {
+        mid: 0,
+        unread: 0,
         id: +user_id,
-        type: "user" as "user" | "channel"
-      };
+        type: "user" as const
+      }
+      : undefined;
   // console.log("temp uid", tmpUid);
   const placeholderVisible = channel_id == 0 && user_id == 0;
   const isMainPath = isHomePath || isChatHomePath;