refactor: Enhance message context menu with improved text selection and copying

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

@@ -35,14 +35,6 @@ interface Props {
   onDeleteMessage?: (message: Message) => Promise<void>
 }
 
-const getMessageBackground = (isBubbleStyle: boolean, isAssistantMessage: boolean) => {
-  return isBubbleStyle
-    ? isAssistantMessage
-      ? 'var(--chat-background-assistant)'
-      : 'var(--chat-background-user)'
-    : undefined
-}
-
 const MessageItem: FC<Props> = ({
   message: _message,
   topic: _topic,
@@ -64,6 +56,7 @@ const MessageItem: FC<Props> = ({
   const topic = useTopic(assistant, _topic?.id)
   const [contextMenuPosition, setContextMenuPosition] = useState<{ x: number; y: number } | null>(null)
   const [selectedQuoteText, setSelectedQuoteText] = useState<string>('')
+  const [selectedText, setSelectedText] = useState<string>('')
 
   const isLastMessage = index === 0
   const isAssistantMessage = message.role === 'assistant'
@@ -79,15 +72,16 @@ const MessageItem: FC<Props> = ({
 
   const handleContextMenu = useCallback((e: React.MouseEvent) => {
     e.preventDefault()
-    const selectedText = window.getSelection()?.toString()
-    if (selectedText) {
+    const _selectedText = window.getSelection()?.toString()
+    if (_selectedText) {
       const quotedText =
-        selectedText
+        _selectedText
           .split('\n')
           .map((line) => `> ${line}`)
           .join('\n') + '\n-------------'
       setSelectedQuoteText(quotedText)
       setContextMenuPosition({ x: e.clientX, y: e.clientY })
+      setSelectedText(_selectedText)
     }
   }, [])
 
@@ -214,35 +208,9 @@ const MessageItem: FC<Props> = ({
       onContextMenu={handleContextMenu}
       style={{ ...style, alignItems: isBubbleStyle ? (isAssistantMessage ? 'start' : 'end') : undefined }}>
       {contextMenuPosition && (
-        <ContextMenuOverlay
-          style={{
-            position: 'fixed',
-            left: contextMenuPosition.x,
-            top: contextMenuPosition.y,
-            zIndex: 1000
-          }}>
+        <ContextMenuOverlay style={{ left: contextMenuPosition.x, top: contextMenuPosition.y, zIndex: 1000 }}>
           <Dropdown
-            menu={{
-              items: [
-                {
-                  key: 'copy',
-                  label: t('common.copy'),
-                  onClick: () => {
-                    navigator.clipboard.writeText(
-                      selectedQuoteText.replace(/^> /gm, '').replace(/\n-------------$/, '')
-                    )
-                    window.message.success({ content: t('message.copied'), key: 'copy-message' })
-                  }
-                },
-                {
-                  key: 'quote',
-                  label: t('chat.message.quote'),
-                  onClick: () => {
-                    EventEmitter.emit(EVENT_NAMES.QUOTE_TEXT, selectedQuoteText)
-                  }
-                }
-              ]
-            }}
+            menu={{ items: getContextMenuItems(t, selectedQuoteText, selectedText) }}
             open={true}
             trigger={['contextMenu']}>
             <div />
@@ -284,6 +252,32 @@ const MessageItem: FC<Props> = ({
   )
 }
 
+const getMessageBackground = (isBubbleStyle: boolean, isAssistantMessage: boolean) => {
+  return isBubbleStyle
+    ? isAssistantMessage
+      ? 'var(--chat-background-assistant)'
+      : 'var(--chat-background-user)'
+    : undefined
+}
+
+const getContextMenuItems = (t: (key: string) => string, selectedQuoteText: string, selectedText: string) => [
+  {
+    key: 'copy',
+    label: t('common.copy'),
+    onClick: () => {
+      navigator.clipboard.writeText(selectedText)
+      window.message.success({ content: t('message.copied'), key: 'copy-message' })
+    }
+  },
+  {
+    key: 'quote',
+    label: t('chat.message.quote'),
+    onClick: () => {
+      EventEmitter.emit(EVENT_NAMES.QUOTE_TEXT, selectedQuoteText)
+    }
+  }
+]
+
 const MessageContainer = styled.div`
   display: flex;
   flex-direction: column;