实现 #580 引用消息支持部分引用显示

electron/services/chatService.ts

@@ -4486,15 +4486,16 @@ class ChatService {
    */
   private parseQuoteMessage(content: string): { content?: string; sender?: string } {
     try {
+      const normalizedContent = this.decodeHtmlEntities(content || '')
       // 提取 refermsg 部分
-      const referMsgStart = content.indexOf('<refermsg>')
-      const referMsgEnd = content.indexOf('</refermsg>')
+      const referMsgStart = normalizedContent.indexOf('<refermsg>')
+      const referMsgEnd = normalizedContent.indexOf('</refermsg>')
 
       if (referMsgStart === -1 || referMsgEnd === -1) {
         return {}
       }
 
-      const referMsgXml = content.substring(referMsgStart, referMsgEnd + 11)
+      const referMsgXml = normalizedContent.substring(referMsgStart, referMsgEnd + 11)
 
       // 提取发送者名称
       let displayName = this.extractXmlValue(referMsgXml, 'displayname')
@@ -4511,8 +4512,8 @@ class ChatService {
       let displayContent = referContent
       switch (referType) {
         case '1':
-          // 文本消息，清理可能的 wxid
-          displayContent = this.sanitizeQuotedContent(referContent)
+          // 文本消息优先取“部分引用”字段，缺失时再回退到完整 content
+          displayContent = this.extractPreferredQuotedText(referMsgXml)
           break
         case '3':
           displayContent = '[图片]'
@@ -4552,6 +4553,76 @@ class ChatService {
     }
   }
 
+  private extractPreferredQuotedText(referMsgXml: string): string {
+    if (!referMsgXml) return ''
+
+    const sources = [this.decodeHtmlEntities(referMsgXml)]
+    const rawMsgSource = this.extractXmlValue(referMsgXml, 'msgsource')
+    if (rawMsgSource) {
+      const decodedMsgSource = this.decodeHtmlEntities(rawMsgSource)
+      if (decodedMsgSource) {
+        sources.push(decodedMsgSource)
+      }
+    }
+
+    const fullContent = this.sanitizeQuotedContent(this.extractXmlValue(sources[0] || referMsgXml, 'content'))
+    const partialText = this.extractPartialQuotedText(sources[0] || referMsgXml, fullContent)
+    if (partialText) return partialText
+
+    const candidateTags = [
+      'selectedcontent',
+      'selectedtext',
+      'selectcontent',
+      'selecttext',
+      'quotecontent',
+      'quotetext',
+      'partcontent',
+      'parttext',
+      'excerpt',
+      'summary',
+      'preview'
+    ]
+
+    for (const source of sources) {
+      for (const tag of candidateTags) {
+        const value = this.sanitizeQuotedContent(this.extractXmlValue(source, tag))
+        if (value) return value
+      }
+    }
+
+    return fullContent
+  }
+
+  private extractPartialQuotedText(xml: string, fullContent: string): string {
+    if (!xml || !fullContent) return ''
+
+    const startChar = this.extractXmlValue(xml, 'start')
+    const endChar = this.extractXmlValue(xml, 'end')
+    const startIndexRaw = this.extractXmlValue(xml, 'startindex')
+    const endIndexRaw = this.extractXmlValue(xml, 'endindex')
+    const startIndex = Number.parseInt(startIndexRaw, 10)
+    const endIndex = Number.parseInt(endIndexRaw, 10)
+
+    if (startChar && endChar) {
+      const startPos = fullContent.indexOf(startChar)
+      if (startPos !== -1) {
+        const endPos = fullContent.indexOf(endChar, startPos + startChar.length - 1)
+        if (endPos !== -1 && endPos >= startPos) {
+          const sliced = fullContent.slice(startPos, endPos + endChar.length).trim()
+          if (sliced) return sliced
+        }
+      }
+    }
+
+    if (Number.isFinite(startIndex) && Number.isFinite(endIndex) && endIndex >= startIndex) {
+      const chars = Array.from(fullContent)
+      const sliced = chars.slice(startIndex, endIndex + 1).join('').trim()
+      if (sliced) return sliced
+    }
+
+    return ''
+  }
+
   /**
    * 解析名片消息
    * 格式: <msg username="wxid_xxx" nickname="昵称" ... />

electron/services/exportService.ts

@@ -2254,7 +2254,7 @@ class ExportService {
       const referMsgXml = normalized.substring(referMsgStart, referMsgEnd + 11)
       const quoteInfo = this.parseQuoteMessage(normalized)
       const replyText = this.stripSenderPrefix(this.extractXmlValue(normalized, 'title') || '')
-      const quotedPreview = this.formatQuotedReferencePreview(
+      const quotedPreview = quoteInfo.content || this.formatQuotedReferencePreview(
         this.extractXmlValue(referMsgXml, 'content'),
         this.extractXmlValue(referMsgXml, 'type')
       )
@@ -2960,7 +2960,7 @@ class ExportService {
 
       switch (referType) {
         case '1':
-          displayContent = this.sanitizeQuotedContent(referContent)
+          displayContent = this.extractPreferredQuotedText(referMsgXml)
           break
         case '3':
           displayContent = '[图片]'
@@ -3001,6 +3001,76 @@ class ExportService {
     }
   }
 
+  private extractPreferredQuotedText(referMsgXml: string): string {
+    if (!referMsgXml) return ''
+
+    const sources = [this.decodeHtmlEntities(referMsgXml)]
+    const rawMsgSource = this.extractXmlValue(referMsgXml, 'msgsource')
+    if (rawMsgSource) {
+      const decodedMsgSource = this.decodeHtmlEntities(rawMsgSource)
+      if (decodedMsgSource) {
+        sources.push(decodedMsgSource)
+      }
+    }
+
+    const fullContent = this.sanitizeQuotedContent(this.extractXmlValue(sources[0] || referMsgXml, 'content'))
+    const partialText = this.extractPartialQuotedText(sources[0] || referMsgXml, fullContent)
+    if (partialText) return partialText
+
+    const candidateTags = [
+      'selectedcontent',
+      'selectedtext',
+      'selectcontent',
+      'selecttext',
+      'quotecontent',
+      'quotetext',
+      'partcontent',
+      'parttext',
+      'excerpt',
+      'summary',
+      'preview'
+    ]
+
+    for (const source of sources) {
+      for (const tag of candidateTags) {
+        const value = this.sanitizeQuotedContent(this.extractXmlValue(source, tag))
+        if (value) return value
+      }
+    }
+
+    return fullContent
+  }
+
+  private extractPartialQuotedText(xml: string, fullContent: string): string {
+    if (!xml || !fullContent) return ''
+
+    const startChar = this.extractXmlValue(xml, 'start')
+    const endChar = this.extractXmlValue(xml, 'end')
+    const startIndexRaw = this.extractXmlValue(xml, 'startindex')
+    const endIndexRaw = this.extractXmlValue(xml, 'endindex')
+    const startIndex = Number.parseInt(startIndexRaw, 10)
+    const endIndex = Number.parseInt(endIndexRaw, 10)
+
+    if (startChar && endChar) {
+      const startPos = fullContent.indexOf(startChar)
+      if (startPos !== -1) {
+        const endPos = fullContent.indexOf(endChar, startPos + startChar.length - 1)
+        if (endPos !== -1 && endPos >= startPos) {
+          const sliced = fullContent.slice(startPos, endPos + endChar.length).trim()
+          if (sliced) return sliced
+        }
+      }
+    }
+
+    if (Number.isFinite(startIndex) && Number.isFinite(endIndex) && endIndex >= startIndex) {
+      const chars = Array.from(fullContent)
+      const sliced = chars.slice(startIndex, endIndex + 1).join('').trim()
+      if (sliced) return sliced
+    }
+
+    return ''
+  }
+
   private extractChatLabReplyToMessageId(content: string): string | undefined {
     try {
       const normalized = this.normalizeAppMessageContent(content || '')

src/pages/ChatPage.tsx

@@ -8695,6 +8695,28 @@ function MessageBubble({
     appMsgTextCache.set(selector, value)
     return value
   }, [appMsgDoc, appMsgTextCache])
+  const queryPreferredQuotedContent = useCallback((): string => {
+    if (message.quotedContent) return message.quotedContent
+    const candidates = [
+      'refermsg > selectedcontent',
+      'refermsg > selectedtext',
+      'refermsg > selectcontent',
+      'refermsg > selecttext',
+      'refermsg > quotecontent',
+      'refermsg > quotetext',
+      'refermsg > partcontent',
+      'refermsg > parttext',
+      'refermsg > excerpt',
+      'refermsg > summary',
+      'refermsg > preview',
+      'refermsg > content'
+    ]
+    for (const selector of candidates) {
+      const value = queryAppMsgText(selector)
+      if (value) return value
+    }
+    return ''
+  }, [message.quotedContent, queryAppMsgText])
   const appMsgThumbRawCandidate = useMemo(() => (
     message.linkThumb ||
     message.appMsgThumbUrl ||
@@ -8712,7 +8734,7 @@ function MessageBubble({
     queryAppMsgText('refermsg > fromusr'),
     queryAppMsgText('refermsg > chatusr')
   )
-  const quotedContent = message.quotedContent || queryAppMsgText('refermsg > content') || ''
+  const quotedContent = queryPreferredQuotedContent()
   const quotedSenderFallbackName = useMemo(
     () => resolveQuotedSenderFallbackDisplayName(
       session.username,
@@ -9262,7 +9284,7 @@ function MessageBubble({
       // type 57: 引用回复消息，解析 refermsg 渲染为引用样式
       if (xmlType === '57') {
         const replyText = q('title') || cleanedParsedContent || ''
-        const referContent = q('refermsg > content') || ''
+        const referContent = queryPreferredQuotedContent()
         const referType = q('refermsg > type') || ''
 
         // 根据被引用消息类型渲染对应内容
@@ -9385,7 +9407,7 @@ function MessageBubble({
       if (kind === 'quote') {
         // 引用回复消息（appMsgKind='quote'，xmlType=57）
         const replyText = message.linkTitle || q('title') || cleanedParsedContent || ''
-        const referContent = message.quotedContent || q('refermsg > content') || ''
+        const referContent = queryPreferredQuotedContent()
         return (
           renderBubbleWithQuote(
             renderQuotedMessageBlock(renderTextWithEmoji(cleanMessageContent(referContent))),
@@ -9576,7 +9598,7 @@ function MessageBubble({
       // 引用回复消息 (type=57)，防止被误判为链接
       if (appMsgType === '57') {
         const replyText = parsedDoc?.querySelector('title')?.textContent?.trim() || cleanedParsedContent || ''
-        const referContent = parsedDoc?.querySelector('refermsg > content')?.textContent?.trim() || ''
+        const referContent = queryPreferredQuotedContent()
         const referType = parsedDoc?.querySelector('refermsg > type')?.textContent?.trim() || ''
 
         const renderReferContent2 = () => {