feat: add message multiple select

src/renderer/src/components/Popups/MultiSelectionPopup.tsx

@@ -0,0 +1,146 @@
+import { CloseOutlined, CopyOutlined, DeleteOutlined, SaveOutlined } from '@ant-design/icons'
+import { EVENT_NAMES, EventEmitter } from '@renderer/services/EventService'
+import type { Message } from '@renderer/types/newMessage'
+import { Button, Tooltip } from 'antd'
+import { FC, useEffect, useState } from 'react'
+import { useTranslation } from 'react-i18next'
+import styled from 'styled-components'
+
+interface MultiSelectActionPopupProps {
+  visible: boolean
+  onClose: () => void
+  onAction?: (action: string, messageIds: string[]) => void
+  topic: any
+}
+
+interface MessageTypeInfo {
+  hasUserMessages: boolean
+  hasAssistantMessages: boolean
+  messageIds: string[]
+}
+
+const MultiSelectActionPopup: FC<MultiSelectActionPopupProps> = ({ visible, onClose, onAction }) => {
+  const { t } = useTranslation()
+  const [selectedMessages, setSelectedMessages] = useState<Message[]>([])
+  const [selectedMessageIds, setSelectedMessageIds] = useState<string[]>([])
+  const [, setMessageTypeInfo] = useState<MessageTypeInfo>({
+    hasUserMessages: false,
+    hasAssistantMessages: false,
+    messageIds: []
+  })
+
+  useEffect(() => {
+    const handleSelectedMessagesChanged = (messageIds: string[]) => {
+      setSelectedMessageIds(messageIds)
+      EventEmitter.emit('REQUEST_SELECTED_MESSAGE_DETAILS', messageIds)
+    }
+
+    const handleSelectedMessageDetails = (messages: Message[]) => {
+      setSelectedMessages(messages)
+
+      const hasUserMessages = messages.some((msg) => msg.role === 'user')
+      const hasAssistantMessages = messages.some((msg) => msg.role === 'assistant')
+
+      setMessageTypeInfo({
+        hasUserMessages,
+        hasAssistantMessages,
+        messageIds: selectedMessageIds
+      })
+    }
+
+    EventEmitter.on(EVENT_NAMES.SELECTED_MESSAGES_CHANGED, handleSelectedMessagesChanged)
+    EventEmitter.on('SELECTED_MESSAGE_DETAILS', handleSelectedMessageDetails)
+
+    return () => {
+      EventEmitter.off(EVENT_NAMES.SELECTED_MESSAGES_CHANGED, handleSelectedMessagesChanged)
+      EventEmitter.off('SELECTED_MESSAGE_DETAILS', handleSelectedMessageDetails)
+    }
+  }, [selectedMessageIds])
+
+  const handleAction = (action: string) => {
+    if (onAction) {
+      onAction(action, selectedMessageIds)
+    }
+  }
+
+  const handleClose = () => {
+    EventEmitter.emit(EVENT_NAMES.MESSAGE_MULTI_SELECT, false)
+    onClose()
+  }
+
+  if (!visible) return null
+
+  // TODO: 视情况调整
+  // const isActionDisabled = selectedMessages.some((msg) => msg.role === 'user')
+  const isActionDisabled = false
+
+  return (
+    <Container>
+      <ActionBar>
+        <SelectionCount>{t('common.selectedMessages', { count: selectedMessageIds.length })}</SelectionCount>
+        <ActionButtons>
+          <Tooltip title={t('common.save')}>
+            <ActionButton icon={<SaveOutlined />} disabled={isActionDisabled} onClick={() => handleAction('save')} />
+          </Tooltip>
+          <Tooltip title={t('common.copy')}>
+            <ActionButton icon={<CopyOutlined />} disabled={isActionDisabled} onClick={() => handleAction('copy')} />
+          </Tooltip>
+          <Tooltip title={t('common.delete')}>
+            <ActionButton danger icon={<DeleteOutlined />} onClick={() => handleAction('delete')} />
+          </Tooltip>
+        </ActionButtons>
+        <Tooltip title={t('popup.close')}>
+          <ActionButton icon={<CloseOutlined />} onClick={handleClose} />
+        </Tooltip>
+      </ActionBar>
+    </Container>
+  )
+}
+
+const Container = styled.div`
+  position: sticky;
+  bottom: 0;
+  left: 0;
+  width: 100%;
+  padding: 36px 20px;
+  background-color: var(--color-background);
+  border-top: 1px solid var(--color-border);
+  z-index: 10;
+`
+
+const ActionBar = styled.div`
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+`
+
+const ActionButtons = styled.div`
+  display: flex;
+  gap: 16px;
+`
+
+const ActionButton = styled(Button)`
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  padding: 8px 16px;
+  border-radius: 4px;
+  .anticon {
+    font-size: 16px;
+  }
+  &:hover {
+    background-color: var(--color-background-mute);
+  }
+  &:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+  }
+`
+
+const SelectionCount = styled.div`
+  margin-right: 15px;
+  color: var(--color-text-2);
+  font-size: 14px;
+`
+
+export default MultiSelectActionPopup

src/renderer/src/i18n/locales/en-us.json

@@ -186,6 +186,8 @@
       "message.quote": "Quote",
       "message.regenerate.model": "Switch Model",
       "message.useful": "Helpful",
+      "message.select": "Multiple Select",
+      "multiple.select.empty": "No Messages Selected",
       "navigation": {
         "first": "Already at the first message",
         "history": "Chat History",
@@ -388,6 +390,7 @@
       "save": "Save",
       "search": "Search",
       "select": "Select",
+      "selectedMessages": "Selected {{count}} messages",
       "topics": "Topics",
       "warning": "Warning",
       "you": "You",
@@ -585,6 +588,10 @@
       "copied": "Copied!",
       "copy.failed": "Copy failed",
       "copy.success": "Copied!",
+      "delete.confirm.title": "Delete Confirmation",
+      "delete.confirm.content": "Are you sure you want to delete the selected {{count}} message(s)?",
+      "delete.failed": "Delete Failed",
+      "delete.success": "Delete Successful",
       "error.chunk_overlap_too_large": "Chunk overlap cannot be greater than chunk size",
       "error.dimension_too_large": "Content size is too large",
       "error.enter.api.host": "Please enter your API host first",

src/renderer/src/i18n/locales/ja-jp.json

@@ -186,6 +186,8 @@
       "message.quote": "引用",
       "message.regenerate.model": "モデルを切り替え",
       "message.useful": "役立つ",
+      "message.select": "選択",
+      "multiple.select.empty": "メッセージが選択されていません",
       "navigation": {
         "first": "最初のメッセージです",
         "history": "チャット履歴",
@@ -388,6 +390,7 @@
       "save": "保存",
       "search": "検索",
       "select": "選択",
+      "selectedMessages": "{{count}}件のメッセージを選択しました",
       "topics": "トピック",
       "warning": "警告",
       "you": "あなた",
@@ -585,6 +588,10 @@
       "copied": "コピーしました！",
       "copy.failed": "コピーに失敗しました",
       "copy.success": "コピーしました！",
+      "delete.confirm.title": "削除確認",
+      "delete.confirm.content": "選択した{{count}}件のメッセージを削除しますか？",
+      "delete.failed": "削除に失敗しました",
+      "delete.success": "削除が成功しました",
       "error.chunk_overlap_too_large": "チャンクの重なりは、チャンクサイズを超えることはできません",
       "error.dimension_too_large": "内容のサイズが大きすぎます",
       "error.enter.api.host": "APIホストを入力してください",

src/renderer/src/i18n/locales/ru-ru.json

@@ -186,6 +186,8 @@
       "message.quote": "Цитата",
       "message.regenerate.model": "Переключить модель",
       "message.useful": "Полезно",
+      "multiple.select": "Множественный выбор",
+      "multiple.select.empty": "Ничего не выбрано",
       "navigation": {
         "first": "Уже первое сообщение",
         "history": "История чата",
@@ -388,6 +390,7 @@
       "save": "Сохранить",
       "search": "Поиск",
       "select": "Выбрать",
+      "selectedMessages": "Выбрано {{count}} сообщений",
       "topics": "Топики",
       "warning": "Предупреждение",
       "you": "Вы",
@@ -585,6 +588,10 @@
       "copied": "Скопировано!",
       "copy.failed": "Не удалось скопировать",
       "copy.success": "Скопировано!",
+      "delete.confirm.title": "Подтверждение удаления",
+      "delete.confirm.content": "Вы уверены, что хотите удалить выбранные {{count}} сообщения?",
+      "delete.failed": "Ошибка удаления",
+      "delete.success": "Удаление успешно",
       "error.chunk_overlap_too_large": "Перекрытие фрагментов не может быть больше размера фрагмента.",
       "error.dimension_too_large": "Размер содержимого слишком велик",
       "error.enter.api.host": "Пожалуйста, введите ваш API хост",

src/renderer/src/i18n/locales/zh-cn.json

@@ -200,6 +200,8 @@
       "message.quote": "引用",
       "message.regenerate.model": "切换模型",
       "message.useful": "有用",
+      "multiple.select": "多选",
+      "multiple.select.empty": "未选中任何消息",
       "navigation": {
         "first": "已经是第一条消息",
         "history": "聊天历史",
@@ -388,6 +390,7 @@
       "save": "保存",
       "search": "搜索",
       "select": "选择",
+      "selectedMessages": "选中{{count}}条消息",
       "topics": "话题",
       "warning": "警告",
       "you": "用户",
@@ -585,6 +588,10 @@
       "copied": "已复制",
       "copy.failed": "复制失败",
       "copy.success": "复制成功",
+      "delete.confirm.title": "删除确认",
+      "delete.confirm.content": "确认删除选中的{{count}}条消息吗？",
+      "delete.failed": "删除失败",
+      "delete.success": "删除成功",
       "error.chunk_overlap_too_large": "分段重叠不能大于分段大小",
       "error.dimension_too_large": "内容尺寸过大",
       "error.enter.api.host": "请输入您的 API 地址",

src/renderer/src/i18n/locales/zh-tw.json

@@ -186,6 +186,8 @@
       "message.quote": "引用",
       "message.regenerate.model": "切換模型",
       "message.useful": "有用",
+      "multiple.select": "多選",
+      "multiple.select.empty": "未選中任何訊息",
       "navigation": {
         "first": "已經是第一條訊息",
         "history": "聊天歷史",
@@ -388,6 +390,7 @@
       "save": "儲存",
       "search": "搜尋",
       "select": "選擇",
+      "selectedMessages": "选中{{count}}条消息",
       "topics": "話題",
       "warning": "警告",
       "you": "您",
@@ -585,6 +588,10 @@
       "copied": "已複製！",
       "copy.failed": "複製失敗",
       "copy.success": "已複製！",
+      "delete.confirm.title": "刪除確認",
+      "delete.confirm.content": "確認刪除選中的 {{count}} 條訊息嗎？",
+      "delete.failed": "刪除失敗",
+      "delete.success": "刪除成功",
       "error.chunk_overlap_too_large": "分段重疊不能大於分段大小",
       "error.dimension_too_large": "內容尺寸過大",
       "error.enter.api.host": "請先輸入您的 API 主機地址",

src/renderer/src/pages/home/Chat.tsx

@@ -1,10 +1,17 @@
+import MultiSelectActionPopup from '@renderer/components/Popups/MultiSelectionPopup'
 import { QuickPanelProvider } from '@renderer/components/QuickPanel'
 import { useAssistant } from '@renderer/hooks/useAssistant'
 import { useSettings } from '@renderer/hooks/useSettings'
 import { useShowTopics } from '@renderer/hooks/useStore'
+import { EVENT_NAMES, EventEmitter } from '@renderer/services/EventService'
+import { RootState } from '@renderer/store'
+import { messageBlocksSelectors } from '@renderer/store/messageBlock'
+import { newMessagesActions, selectMessagesForTopic } from '@renderer/store/newMessage'
 import { Assistant, Topic } from '@renderer/types'
-import { Flex } from 'antd'
+import { Flex, Modal } from 'antd'
-import { FC } from 'react'
+import { FC, useEffect, useState } from 'react'
+import { useTranslation } from 'react-i18next'
+import { useDispatch, useSelector } from 'react-redux'
 import styled from 'styled-components'
 
 import Inputbar from './Inputbar/Inputbar'
@@ -22,6 +29,116 @@ const Chat: FC<Props> = (props) => {
   const { assistant } = useAssistant(props.assistant.id)
   const { topicPosition, messageStyle } = useSettings()
   const { showTopics } = useShowTopics()
+  const { t } = useTranslation()
+  const [isMultiSelectMode, setIsMultiSelectMode] = useState(false)
+  const [confirmDeleteVisible, setConfirmDeleteVisible] = useState(false)
+  const [messagesToDelete, setMessagesToDelete] = useState<string[]>([])
+
+  const dispatch = useDispatch()
+  // 从 Redux 中获取当前主题的消息
+  const messages = useSelector((state: RootState) => selectMessagesForTopic(state, props.activeTopic.id))
+  // 获取所有消息块
+  const messageBlocks = useSelector(messageBlocksSelectors.selectEntities)
+
+  useEffect(() => {
+    const handleToggleMultiSelect = (value: boolean) => {
+      setIsMultiSelectMode(value)
+    }
+
+    EventEmitter.on(EVENT_NAMES.MESSAGE_MULTI_SELECT, handleToggleMultiSelect)
+
+    return () => {
+      EventEmitter.off(EVENT_NAMES.MESSAGE_MULTI_SELECT, handleToggleMultiSelect)
+    }
+  }, [])
+
+  const handleMultiSelectAction = (actionType: string, messageIds: string[]) => {
+    if (messageIds.length === 0) {
+      window.message.warning(t('chat.multiple.select.empty'))
+      return
+    }
+    switch (actionType) {
+      case 'delete':
+        setMessagesToDelete(messageIds)
+        setConfirmDeleteVisible(true)
+        break
+      case 'save': {
+        const assistantMessages = messages.filter((msg) => messageIds.includes(msg.id))
+        if (assistantMessages.length > 0) {
+          const contentToSave = assistantMessages
+            .map((msg) => {
+              return msg.blocks
+                .map((blockId) => {
+                  const block = messageBlocks[blockId]
+                  return block && 'content' in block ? block.content : ''
+                })
+                .filter(Boolean)
+                .join('\n')
+                .trim()
+            })
+            .join('\n\n---\n\n')
+          const fileName = `chat_export_${new Date().toISOString().slice(0, 19).replace(/[T:]/g, '-')}.md`
+          window.api.file.save(fileName, contentToSave)
+          window.message.success({ content: t('message.save.success.title'), key: 'save-messages' })
+          EventEmitter.emit(EVENT_NAMES.MESSAGE_MULTI_SELECT, false)
+        } else {
+          window.message.warning(t('message.save.no.assistant'))
+        }
+        break
+      }
+      case 'copy': {
+        const assistantMessages = messages.filter((msg) => messageIds.includes(msg.id))
+        if (assistantMessages.length > 0) {
+          const contentToCopy = assistantMessages
+            .map((msg) => {
+              return msg.blocks
+                .map((blockId) => {
+                  const block = messageBlocks[blockId]
+                  return block && 'content' in block ? block.content : ''
+                })
+                .filter(Boolean)
+                .join('\n')
+                .trim()
+            })
+            .join('\n\n---\n\n')
+          navigator.clipboard.writeText(contentToCopy)
+          window.message.success({ content: t('message.copied'), key: 'copy-messages' })
+          EventEmitter.emit(EVENT_NAMES.MESSAGE_MULTI_SELECT, false)
+        } else {
+          window.message.warning(t('message.copy.no.assistant'))
+        }
+        break
+      }
+      default:
+        break
+    }
+  }
+
+  const confirmDelete = async () => {
+    try {
+      dispatch(
+        newMessagesActions.removeMessages({
+          topicId: props.activeTopic.id,
+          messageIds: messagesToDelete
+        })
+      )
+      window.message.success(t('message.delete.success'))
+      setMessagesToDelete([])
+      setIsMultiSelectMode(false)
+      EventEmitter.emit(EVENT_NAMES.MESSAGE_MULTI_SELECT, false)
+    } catch (error) {
+      console.error('Failed to delete messages:', error)
+      window.message.error(t('message.delete.failed'))
+    } finally {
+      setConfirmDeleteVisible(false)
+      setIsMultiSelectMode(false)
+    }
+  }
+
+  const cancelDelete = () => {
+    setConfirmDeleteVisible(false)
+    setMessagesToDelete([])
+  }
 
   return (
     <Container id="chat" className={messageStyle}>
@@ -33,7 +150,16 @@ const Chat: FC<Props> = (props) => {
           setActiveTopic={props.setActiveTopic}
         />
         <QuickPanelProvider>
-          <Inputbar assistant={assistant} setActiveTopic={props.setActiveTopic} topic={props.activeTopic} />
+          {isMultiSelectMode ? (
+            <MultiSelectActionPopup
+              visible={isMultiSelectMode}
+              onClose={() => setIsMultiSelectMode(false)}
+              onAction={handleMultiSelectAction}
+              topic={props.activeTopic}
+            />
+          ) : (
+            <Inputbar assistant={assistant} setActiveTopic={props.setActiveTopic} topic={props.activeTopic} />
+          )}
         </QuickPanelProvider>
       </Main>
       {topicPosition === 'right' && showTopics && (
@@ -45,6 +171,17 @@ const Chat: FC<Props> = (props) => {
           position="right"
         />
       )}
+      <Modal
+        title={t('message.delete.confirm.title')}
+        open={confirmDeleteVisible}
+        onOk={confirmDelete}
+        onCancel={cancelDelete}
+        okText={t('common.confirm')}
+        cancelText={t('common.cancel')}
+        okButtonProps={{ danger: true }}
+        centered={true}>
+        <p>{t('message.delete.confirm.content', { count: messagesToDelete.length })}</p>
+      </Modal>
     </Container>
   )
 }
@@ -59,7 +196,6 @@ const Container = styled.div`
 
 const Main = styled(Flex)`
   height: calc(100vh - var(--navbar-height));
-  // 设置为containing block，方便子元素fixed定位
   transform: translateZ(0);
 `
 

src/renderer/src/pages/home/Messages/MessageGroup.tsx

@@ -12,14 +12,25 @@ import styled, { css } from 'styled-components'
 
 import MessageItem from './Message'
 import MessageGroupMenuBar from './MessageGroupMenuBar'
+import SelectableMessage from './MessageSelect'
 
 interface Props {
   messages: (Message & { index: number })[]
   topic: Topic
   hidePresetMessages?: boolean
+  isMultiSelectMode?: boolean // 添加是否处于多选模式
+  selectedMessages?: Set<string> // 已选择的消息ID集合
+  onSelectMessage?: (messageId: string, selected: boolean) => void // 消息选择回调
 }
 
-const MessageGroup = ({ messages, topic, hidePresetMessages }: Props) => {
+const MessageGroup = ({
+  messages,
+  topic,
+  hidePresetMessages,
+  isMultiSelectMode = false,
+  selectedMessages = new Set(),
+  onSelectMessage
+}: Props) => {
   const { editMessage } = useMessageOperations(topic)
   const { multiModelMessageStyle: multiModelMessageStyleSetting, gridColumns, gridPopoverTrigger } = useSettings()
 
@@ -160,7 +171,7 @@ const MessageGroup = ({ messages, topic, hidePresetMessages }: Props) => {
         }
       }
 
-      const messageWrapper = (
+      const messageContent = (
         <MessageWrapper
           id={`message-${message.id}`}
           $layout={multiModelMessageStyle}
@@ -176,6 +187,17 @@ const MessageGroup = ({ messages, topic, hidePresetMessages }: Props) => {
         </MessageWrapper>
       )
 
+      const wrappedMessage = (
+        <SelectableMessage
+          key={`selectable-${message.id}`}
+          messageId={message.id}
+          isMultiSelectMode={isMultiSelectMode}
+          isSelected={selectedMessages.has(message.id)}
+          onSelect={(selected) => onSelectMessage?.(message.id, selected)}>
+          {messageContent}
+        </SelectableMessage>
+      )
+
       if (isGridGroupMessage) {
         return (
           <Popover
@@ -192,12 +214,12 @@ const MessageGroup = ({ messages, topic, hidePresetMessages }: Props) => {
             trigger={gridPopoverTrigger}
             styles={{ root: { maxWidth: '60vw', minWidth: '550px', overflowY: 'auto', zIndex: 1000 } }}
             getPopupContainer={(triggerNode) => triggerNode.parentNode as HTMLElement}>
-            {messageWrapper}
+            {wrappedMessage}
           </Popover>
         )
       }
 
-      return messageWrapper
+      return wrappedMessage
     },
     [
       isGrid,
@@ -208,7 +230,10 @@ const MessageGroup = ({ messages, topic, hidePresetMessages }: Props) => {
       topic,
       hidePresetMessages,
       gridPopoverTrigger,
-      getSelectedMessageId
+      getSelectedMessageId,
+      isMultiSelectMode, // 添加依赖项
+      selectedMessages, // 添加依赖项
+      onSelectMessage // 添加依赖项
     ]
   )
 

src/renderer/src/pages/home/Messages/MessageMenubar.tsx

@@ -1,4 +1,4 @@
-import { CheckOutlined, EditOutlined, QuestionCircleOutlined, SyncOutlined } from '@ant-design/icons'
+import { CheckOutlined, EditOutlined, MenuOutlined, QuestionCircleOutlined, SyncOutlined } from '@ant-design/icons'
 import ObsidianExportPopup from '@renderer/components/Popups/ObsidianExportPopup'
 import SelectModelPopup from '@renderer/components/Popups/SelectModelPopup'
 import TextEditPopup from '@renderer/components/Popups/TextEditPopup'
@@ -259,6 +259,14 @@ const MessageMenubar: FC<Props> = (props) => {
         icon: <Split size={16} />,
         onClick: onNewBranch
       },
+      {
+        label: t('chat.multiple.select'),
+        key: 'multi-select',
+        icon: <MenuOutlined />,
+        onClick: () => {
+          EventEmitter.emit(EVENT_NAMES.MESSAGE_MULTI_SELECT, true)
+        }
+      },
       {
         label: t('chat.topics.export.title'),
         key: 'export',

src/renderer/src/pages/home/Messages/MessageSelect.tsx

@@ -0,0 +1,43 @@
+import { Checkbox } from 'antd'
+import { FC, ReactNode } from 'react'
+import styled from 'styled-components'
+
+interface SelectableMessageProps {
+  children: ReactNode
+  isMultiSelectMode: boolean
+  isSelected: boolean
+  onSelect: (selected: boolean) => void
+  messageId: string
+}
+
+const SelectableMessage: FC<SelectableMessageProps> = ({ children, isMultiSelectMode, isSelected, onSelect }) => {
+  return (
+    <Container>
+      {isMultiSelectMode && (
+        <CheckboxWrapper>
+          <Checkbox checked={isSelected} onChange={(e) => onSelect(e.target.checked)} />
+        </CheckboxWrapper>
+      )}
+      <MessageContent isMultiSelectMode={isMultiSelectMode}>{children}</MessageContent>
+    </Container>
+  )
+}
+
+const Container = styled.div`
+  display: flex;
+  width: 100%;
+  position: relative;
+`
+
+const CheckboxWrapper = styled.div`
+  padding: 10px 0 10px 20px;
+  display: flex;
+  align-items: flex-start;
+`
+
+const MessageContent = styled.div<{ isMultiSelectMode: boolean }>`
+  flex: 1;
+  ${(props) => props.isMultiSelectMode && 'margin-left: 8px;'}
+`
+
+export default SelectableMessage

src/renderer/src/pages/home/Messages/Messages.tsx

@@ -53,6 +53,8 @@ const Messages: React.FC<MessagesProps> = ({ assistant, topic, setActiveTopic })
   const [hasMore, setHasMore] = useState(false)
   const [isLoadingMore, setIsLoadingMore] = useState(false)
   const [isProcessingContext, setIsProcessingContext] = useState(false)
+  const [selectedMessages, setSelectedMessages] = useState<Set<string>>(new Set())
+  const [isMultiSelectMode, setIsMultiSelectMode] = useState(false)
   const messages = useTopicMessages(topic.id)
   const { displayCount, clearTopicMessages, deleteMessage, createTopicBranch } = useMessageOperations(topic)
   const messagesRef = useRef<Message[]>(messages)
@@ -61,6 +63,47 @@ const Messages: React.FC<MessagesProps> = ({ assistant, topic, setActiveTopic })
     messagesRef.current = messages
   }, [messages])
 
+  useEffect(() => {
+    const handleToggleMultiSelect = (value: boolean) => {
+      setIsMultiSelectMode(value)
+      if (!value) {
+        setSelectedMessages(new Set())
+      }
+    }
+
+    EventEmitter.on(EVENT_NAMES.MESSAGE_MULTI_SELECT, handleToggleMultiSelect)
+
+    return () => {
+      EventEmitter.off(EVENT_NAMES.MESSAGE_MULTI_SELECT, handleToggleMultiSelect)
+    }
+  }, [])
+
+  useEffect(() => {
+    const handleRequestSelectedMessageDetails = (messageIds: string[]) => {
+      const selectedMessages = messages.filter((msg) => messageIds.includes(msg.id))
+      EventEmitter.emit('SELECTED_MESSAGE_DETAILS', selectedMessages)
+    }
+
+    EventEmitter.on('REQUEST_SELECTED_MESSAGE_DETAILS', handleRequestSelectedMessageDetails)
+
+    return () => {
+      EventEmitter.off('REQUEST_SELECTED_MESSAGE_DETAILS', handleRequestSelectedMessageDetails)
+    }
+  }, [messages])
+
+  const handleSelectMessage = (messageId: string, selected: boolean) => {
+    setSelectedMessages((prev) => {
+      const newSet = new Set(prev)
+      if (selected) {
+        newSet.add(messageId)
+      } else {
+        newSet.delete(messageId)
+      }
+      EventEmitter.emit(EVENT_NAMES.SELECTED_MESSAGES_CHANGED, Array.from(newSet))
+      return newSet
+    })
+  }
+
   useEffect(() => {
     const newDisplayMessages = computeDisplayMessages(messages, 0, displayCount)
     setDisplayMessages(newDisplayMessages)
@@ -273,6 +316,9 @@ const Messages: React.FC<MessagesProps> = ({ assistant, topic, setActiveTopic })
                 messages={groupMessages}
                 topic={topic}
                 hidePresetMessages={assistant.settings?.hideMessages}
+                isMultiSelectMode={isMultiSelectMode}
+                selectedMessages={selectedMessages}
+                onSelectMessage={handleSelectMessage}
               />
             ))}
             {isLoadingMore && (

src/renderer/src/services/EventService.ts

@@ -27,5 +27,7 @@ export const EVENT_NAMES = {
   RESEND_MESSAGE: 'RESEND_MESSAGE',
   SHOW_MODEL_SELECTOR: 'SHOW_MODEL_SELECTOR',
   QUOTE_TEXT: 'QUOTE_TEXT',
-  EDIT_CODE_BLOCK: 'EDIT_CODE_BLOCK'
+  EDIT_CODE_BLOCK: 'EDIT_CODE_BLOCK',
+  SELECTED_MESSAGES_CHANGED: 'SELECTED_MESSAGES_CHANGED',
+  MESSAGE_MULTI_SELECT: 'MESSAGE_MULTI_SELECT'
 }