diff --git a/client/ClientCache.ts b/client/ClientCache.ts
index 531cfe9..dd10628 100644
--- a/client/ClientCache.ts
+++ b/client/ClientCache.ts
@@ -1,9 +1,17 @@
-import { Chat, User } from "lingchair-client-protocol"
+import { Chat, User, UserMySelf } from "lingchair-client-protocol"
 import getClient from "./getClient"
 
 type CouldCached = User | Chat | null
 export default class ClientCache {
     static caches: { [key: string]: CouldCached } = {}
+
+    static async getMySelf() {
+        const k = 'usermyself'
+        if (this.caches[k] != null)
+            return this.caches[k] as UserMySelf | null
+        this.caches[k] = await UserMySelf.getMySelf(getClient())
+        return this.caches[k] as UserMySelf | null
+    }
     
     static async getUser(id: string) {
         const k = 'user_' + id
diff --git a/client/ui/Main.tsx b/client/ui/Main.tsx
index ea263fa..a633e86 100644
--- a/client/ui/Main.tsx
+++ b/client/ui/Main.tsx
@@ -3,11 +3,11 @@ import useEventListener from "../utils/useEventListener.ts"
 import AvatarMySelf from "./AvatarMySelf.tsx"
 import MainSharedContext from './MainSharedContext.ts'
 import * as React from 'react'
-import { BrowserRouter, createBrowserRouter, Link, Outlet, Route, RouterProvider, Routes } from "react-router"
+import { BrowserRouter, createBrowserRouter, Link, LoaderFunction, Outlet, Route, RouterProvider, Routes } from "react-router"
 import LoginDialog from "./main-page/LoginDialog.tsx"
 import useAsyncEffect from "../utils/useAsyncEffect.ts"
 import performAuth from "../performAuth.ts"
-import { CallbackError, Chat, UserMySelf } from "lingchair-client-protocol"
+import { CallbackError, Chat, User, UserMySelf } from "lingchair-client-protocol"
 import showCircleProgressDialog from "./showCircleProgressDialog.ts"
 import RegisterDialog from "./main-page/RegisterDialog.tsx"
 import sleep from "../utils/sleep.ts"
@@ -19,8 +19,12 @@ import FavouriteChatsList from "./main-page/FavouriteChatsList.tsx"
 import AddFavourtieChatDialog from "./main-page/AddFavourtieChatDialog.tsx"
 import RecentChatsList from "./main-page/RecentChatsList.tsx"
 import UserOrChatInfoDialog from "./routers/UserOrChatInfoDialog.tsx"
+import UserOrChatInfoDialogLoader from "./routers/UserOrChatInfoDialogDataLoader.ts"
+import ChatFragmentDialog from "./routers/ChatFragmentDialog.tsx"
+import EffectOnly from "./EffectOnly.tsx"
+import MainSharedReducer from "./MainSharedReducer.ts"
 
-export default function Main() {
+function Root() {
     const [myProfileCache, setMyProfileCache] = React.useState<UserMySelf>()
 
     // 多页面切换
@@ -48,9 +52,10 @@ export default function Main() {
     const [showRegisterDialog, setShowRegisterDialog] = React.useState(false)
     const [showAddFavourtieChatDialog, setShowAddFavourtieChatDialog] = React.useState(false)
 
-    const [currentSelectedChatId, setCurrentSelectedChatId] = React.useState('')
-
-    const [favouriteChats, setFavouriteChats] = React.useState<Chat[]>([])
+    const [state, dispatch] = React.useReducer(MainSharedReducer, {
+        favouriteChats: [],
+        currentSelectedChatId: '',
+    })
 
     const sharedContext = {
         functions_lazy: React.useRef({
@@ -58,17 +63,14 @@ export default function Main() {
             updateRecentChats: () => { },
             updateAllChats: () => { },
         }),
-        favouriteChats,
-        setFavouriteChats,
+        state,
+        setFavouriteChats: (chats: Chat[]) => dispatch({ type: 'update_favourite_chat', data: chats }),
 
         setShowLoginDialog,
         setShowRegisterDialog,
         setShowAddFavourtieChatDialog,
 
-        currentSelectedChatId,
-        setCurrentSelectedChatId,
-
-        myProfileCache,
+        setCurrentSelectedChatId: (id: string) => dispatch({ type: 'update_selected_chat_id', data: id }),
     }
 
     useAsyncEffect(async () => {
@@ -94,7 +96,7 @@ export default function Main() {
         waitingForAuth.open = false
     })
 
-    const Root = (
+    return (
         <MainSharedContext.Provider value={sharedContext}>
             <div style={{
                 display: "flex",
@@ -212,12 +214,29 @@ export default function Main() {
             </div>
         </MainSharedContext.Provider>
     )
+}
 
+export default function Main() {
     const router = createBrowserRouter([{
         path: "/",
-        element: Root,
+        Component: Root,
+        hydrateFallbackElement: <EffectOnly effect={() => {
+            const wait = showCircleProgressDialog("请稍后...")
+            return () => {
+                wait.open = false
+            }
+        }} deps={[]} />,
         children: [
-            { path: 'info/:type', Component: UserOrChatInfoDialog, },
+            {
+                path: 'info/:type',
+                Component: UserOrChatInfoDialog,
+                loader: UserOrChatInfoDialogLoader,
+            },
+            /* {
+                path: 'chat',
+                Component: ChatFragmentDialog,
+                loader: UserOrChatInfoDialogLoader,
+            }, */
         ],
     }])
 
diff --git a/client/ui/MainSharedContext.ts b/client/ui/MainSharedContext.ts
index 5e5c178..8271755 100644
--- a/client/ui/MainSharedContext.ts
+++ b/client/ui/MainSharedContext.ts
@@ -1,5 +1,6 @@
 import { Chat, UserMySelf } from "lingchair-client-protocol"
 import { createContext } from "use-context-selector"
+import { SharedState } from "./MainSharedReducer"
 
 type Shared = {
     functions_lazy: React.MutableRefObject<{
@@ -7,17 +8,13 @@ type Shared = {
         updateRecentChats: () => void
         updateAllChats: () => void
     }>
-    favouriteChats: Chat[]
-    setFavouriteChats: React.Dispatch<React.SetStateAction<Chat[]>>
+    state: SharedState
     
     setShowLoginDialog: React.Dispatch<React.SetStateAction<boolean>>
     setShowRegisterDialog: React.Dispatch<React.SetStateAction<boolean>>
     setShowAddFavourtieChatDialog: React.Dispatch<React.SetStateAction<boolean>>
 
-    currentSelectedChatId: string
     setCurrentSelectedChatId: React.Dispatch<React.SetStateAction<string>>
-
-    myProfileCache?: UserMySelf
 }
 const MainSharedContext = createContext({} as Shared)
 
diff --git a/client/ui/MainSharedReducer.ts b/client/ui/MainSharedReducer.ts
new file mode 100644
index 0000000..045f9be
--- /dev/null
+++ b/client/ui/MainSharedReducer.ts
@@ -0,0 +1,21 @@
+import { Chat, UserMySelf } from "lingchair-client-protocol"
+
+export interface SharedState {
+    favouriteChats: Chat[]
+    currentSelectedChatId: string
+}
+
+type Action =
+    | { type: 'update_favourite_chat', data: Chat[] }
+    | { type: 'update_selected_chat_id', data: string }
+
+export default function MainSharedReducer(state: SharedState, action: Action): SharedState {
+    switch (action.type) {
+        case 'update_favourite_chat':
+            return { ...state, favouriteChats: action.data }
+        case 'update_selected_chat_id':
+            return { ...state, currentSelectedChatId: action.data }
+        default:
+            return state
+    }
+}
diff --git a/client/ui/ProgressDialogInner.tsx b/client/ui/ProgressDialogInner.tsx
new file mode 100644
index 0000000..2348ad2
--- /dev/null
+++ b/client/ui/ProgressDialogInner.tsx
@@ -0,0 +1,14 @@
+export default function ProgressDialogInner({ children, ...props }: React.HTMLAttributes<HTMLDivElement>) {
+    return <div {...props} style={{
+        display: 'flex',
+        alignItems: 'center',
+        ...props.style
+    }} >
+        <mdui-circular-progress style={{
+            marginLeft: '3px',
+        }}></mdui-circular-progress>
+        <span style={{
+            marginLeft: '20px',
+        }}>{ children }</span>
+    </div>
+}
diff --git a/client/ui/routers/UserOrChatInfoDialog.tsx b/client/ui/routers/UserOrChatInfoDialog.tsx
index 2cccd15..e6471dc 100644
--- a/client/ui/routers/UserOrChatInfoDialog.tsx
+++ b/client/ui/routers/UserOrChatInfoDialog.tsx
@@ -1,24 +1,97 @@
 import { dialog } from "mdui"
 import useRouterDialogRef from "./useRouterDialogRef"
-import { BlockerFunction, useBlocker, useLocation, useNavigate, useParams, useSearchParams } from "react-router"
-import useAsyncEffect from "../../utils/useAsyncEffect"
-import { CallbackError, Chat } from "lingchair-client-protocol"
+import { useLoaderData } from "react-router"
+import { CallbackError } from "lingchair-client-protocol"
 import showSnackbar from "../../utils/showSnackbar"
-import getClient from "../../getClient"
 import Avatar from "../Avatar"
 import { useContextSelector } from "use-context-selector"
 import MainSharedContext, { Shared } from "../MainSharedContext"
 import * as React from 'react'
+import UserOrChatInfoDialogLoader from "./UserOrChatInfoDialogDataLoader"
+import MainSharedReducer from "../MainSharedReducer"
+import ClientCache from "../../ClientCache"
 
 export default function UserOrChatInfoDialog() {
     const shared = useContextSelector(MainSharedContext, (context: Shared) => ({
-        myProfileCache: context.myProfileCache,
-        favouriteChats: context.favouriteChats,
+        state: context.state,
     }))
 
     const dialogRef = useRouterDialogRef()
+    const { chat, id } = useLoaderData<typeof UserOrChatInfoDialogLoader>()
 
-    const location = useLocation()
+    const favourited = React.useMemo(() => shared.state.favouriteChats.map((v) => v.getId()).indexOf(chat.getId() || '') != -1, [chat, shared.state.favouriteChats])
+
+    return (
+        <mdui-dialog close-on-overlay-click close-on-esc ref={dialogRef}>
+            <div style={{
+                display: 'flex',
+                alignItems: 'center',
+            }}>
+                <Avatar src={chat.getAvatarFileHash()} text={chat.getTitle()} style={{
+                    width: '50px',
+                    height: '50px',
+                }} />
+                <div style={{
+                    display: 'flex',
+                    marginLeft: '15px',
+                    marginRight: '15px',
+                    fontSize: '16.5px',
+                    flexDirection: 'column',
+                    wordBreak: 'break-word',
+                }}>
+                    <span style={{
+                        fontSize: '16.5px'
+                    }}>{chat.getTitle()}</span>
+                    <span style={{
+                        fontSize: '10.5px',
+                        marginTop: '3px',
+                        color: 'rgb(var(--mdui-color-secondary))',
+                    }}>({chat.getType()}) ID: {chat.getType() == 'private' ? id : chat.getId()}</span>
+                </div>
+            </div>
+            <mdui-divider style={{
+                marginTop: "10px",
+            }}></mdui-divider>
+            <mdui-list>
+                <mdui-list-item icon={favourited ? "favorite_border" : "favorite"} rounded onClick={() => dialog({
+                    headline: favourited ? "取消收藏对话" : "收藏对话",
+                    description: favourited ? "确定从收藏对话列表中移除吗? (虽然这不会导致聊天记录丢失)" : "确定要添加到收藏对话列表吗?",
+                    actions: [
+                        {
+                            text: "取消",
+                            onClick: () => {
+                                return true
+                            },
+                        },
+                        {
+                            text: "确定",
+                            onClick: () => {
+                                ; (async () => {
+                                    try {
+                                        if (favourited)
+                                            await (await ClientCache.getMySelf())!.removeFavouriteChatsOrThrow([chat.getId()])
+                                        else
+                                            await (await ClientCache.getMySelf())!.addFavouriteChatsOrThrow([chat.getId()])
+                                    } catch (e) {
+                                        if (e instanceof CallbackError)
+                                            showSnackbar({
+                                                message: (favourited ? "取消收藏对话" : "收藏对话") + '失败: ' + e.message
+                                            })
+                                    }
+                                })()
+                                return true
+                            },
+                        }
+                    ],
+                })}>{favourited ? '取消收藏' : '收藏对话'}</mdui-list-item>
+                <mdui-list-item icon="chat" rounded onClick={() => {
+
+                }}>打开对话</mdui-list-item>
+            </mdui-list>
+        </mdui-dialog>
+    )
+
+    /* const location = useLocation()
     const searchParams = useSearchParams()
     const params = useParams()
 
@@ -42,5 +115,5 @@ export default function UserOrChatInfoDialog() {
                         .join('<br><br>')
             }}></span>
         </mdui-dialog>
-    )
+    ) */
 }
diff --git a/client/ui/routers/UserOrChatInfoDialogDataLoader.ts b/client/ui/routers/UserOrChatInfoDialogDataLoader.ts
new file mode 100644
index 0000000..e559871
--- /dev/null
+++ b/client/ui/routers/UserOrChatInfoDialogDataLoader.ts
@@ -0,0 +1,22 @@
+import { LoaderFunctionArgs } from "react-router"
+import getClient from "../../getClient"
+import { Chat } from "lingchair-client-protocol"
+
+export default async function UserOrChatInfoDialogLoader({ params, request }: LoaderFunctionArgs) {
+    const searchParams = new URL(request.url).searchParams
+
+    let id = searchParams.get('id')
+    let chat: Chat
+    if (params.type == 'user')
+        chat = await Chat.getOrCreatePrivateChatOrThrow(getClient(), id!)
+    else
+        chat = await Chat.getByIdOrThrow(getClient(), id!)
+
+    if (chat.getType() == 'private')
+        id = await chat.getTheOtherUserIdOrThrow()
+
+    return {
+        chat,
+        id,
+    }
+}