src/renderer/src/stores/chat.ts (3)

42-42: UI state addition is fine; consider persisting the toggle across sessions

isMessageNavigationOpen is a good fit for Pinia state. Optional: persist this UI preference (e.g., per-tab or globally) so the sidebar opens in the user’s last-chosen state after app reload.

I can wire this via a small Pinia plugin/localStorage bridge if desired.

---

86-90: Simplify getter; avoid redundant activeThreadId guard and annotate return type

getMessages() already returns [] when no active thread. You can simplify and make the return type explicit to improve readability.

Apply:

-const getCurrentThreadMessages = () => {
-  const activeThreadId = getActiveThreadId()
-  if (!activeThreadId) return []
-  return getMessages()
-}
+const getCurrentThreadMessages = (): (AssistantMessage | UserMessage)[] => getMessages()

---

1188-1196: Export additions look good; avoid API duplication confusion

Exposing isMessageNavigationOpen and getCurrentThreadMessages is reasonable. Minor: since getMessages already returns the active tab’s messages, consider documenting that getCurrentThreadMessages is an alias intended for navigation context, or export an alias to reduce cognitive overhead in consumers.

Optionally, in the future, replace getCurrentThreadMessages calls with getMessages and deprecate the alias to keep a single source of truth.

Also applies to: 1226-1231

src/renderer/src/components/ThreadsView.vue (1)

218-219: Close both side panels — DRY the repeated logic

You close both panels in two places. Extracting a small helper keeps this consistent and easier to change.

Apply within these ranges:

-    chatStore.isSidebarOpen = false
-    chatStore.isMessageNavigationOpen = false
+    closeSidePanels()

-      chatStore.isSidebarOpen = false
-      chatStore.isMessageNavigationOpen = false
+      closeSidePanels()

Add this helper near existing consts (outside the selected ranges):

const closeSidePanels = () => {
  chatStore.isSidebarOpen = false
  chatStore.isMessageNavigationOpen = false
}

Also applies to: 230-231

src/renderer/src/components/message/MessageList.vue (2)

278-297: Scope the selector to this list and escape messageId; also make the API awaitable and signal success

Using document.querySelector risks matching elements from another list (e.g., multiple tabs) and breaks if messageId contains special CSS characters. Scope the query to messagesContainer and use CSS.escape when available. Returning a Promise makes the public API more reliable for callers.

Apply this diff:

-const scrollToMessage = (messageId: string) => {
-  nextTick(() => {
-    const messageElement = document.querySelector(`[data-message-id="${messageId}"]`)
-    if (messageElement) {
-      messageElement.scrollIntoView({
-        behavior: 'smooth',
-        block: 'center'
-      })
-
-      // 添加高亮效果
-      messageElement.classList.add('message-highlight')
-      setTimeout(() => {
-        messageElement.classList.remove('message-highlight')
-      }, 2000)
-    }
-  })
-}
+const scrollToMessage = async (messageId: string): Promise<boolean> => {
+  await nextTick()
+  const container = messagesContainer.value
+  if (!container) return false
+  const safeId =
+    (window.CSS && 'escape' in window.CSS) ? window.CSS.escape(messageId) : messageId
+  const messageElement = container.querySelector<HTMLElement>(
+    `[data-message-id="${safeId}"]`
+  )
+  if (!messageElement) return false
+
+  messageElement.scrollIntoView({
+    behavior: 'smooth',
+    block: 'center',
+    inline: 'nearest'
+  })
+
+  // 添加高亮效果
+  messageElement.classList.add('message-highlight')
+  window.setTimeout(() => {
+    messageElement.classList.remove('message-highlight')
+  }, 2000)
+  return true
+}

---

391-395: Type the exposed API and reflect the awaitable scrollToMessage

Expose explicit types so downstream components get correct intellisense and can await the operation.

-defineExpose({
-  scrollToBottom,
-  scrollToMessage,
-  aboveThreshold
-})
+defineExpose<{
+  scrollToBottom: () => void
+  scrollToMessage: (id: string) => Promise<boolean>
+  aboveThreshold: typeof aboveThreshold
+}>({
+  scrollToBottom,
+  scrollToMessage,
+  aboveThreshold
+})

src/renderer/src/i18n/ru-RU/chat.json (1)

58-67: Use ICU pluralization for Russian counts

Russian requires plural rules; fixed strings like “Всего {count} сообщений” will be grammatically wrong for count=1. Use vue-i18n ICU plurals for both totalMessages and searchResults.

Suggested replacements:

-    "totalMessages": "Всего {count} сообщений",
-    "searchResults": "Найдено {count} результатов из {total} сообщений",
+    "totalMessages": "Всего {count} {count, plural, one {сообщение} few {сообщения} many {сообщений} other {сообщения}}",
+    "searchResults": "Найден{count, plural, one {# результат} few {# результата} many {# результатов} other {# результата}} из {total} {total, plural, one {сообщения} few {сообщений} many {сообщений} other {сообщений}}"

If your i18n setup uses list-based formatting instead of ICU, I can adapt to that format.

src/renderer/src/i18n/fr-FR/chat.json (1)

63-64: Optional: add pluralization for count-dependent strings

Consider using vue-i18n pluralization for better French grammar, e.g., define two forms:

• totalMessages: "{count} message au total | {count} messages au total"
• searchResults: "{count} résultat trouvé sur {total} messages | {count} résultats trouvés sur {total} messages"

Note: switching to pluralization requires using tc() (or equivalent) at call sites.

src/renderer/src/components/ChatView.vue (1)

116-118: Expose a minimal, typed public API instead of the raw child ref

Exposing the entire messageList ref couples parents to internals and weakens type safety. Prefer exposing just the method(s) parents need (e.g., scrollToMessage) and type the ref.

Apply this diff locally to the exposed API:

-defineExpose({
-  messageList
-})
+defineExpose({
+  scrollToMessage: (id: string) => messageList.value?.scrollToMessage?.(id)
+})

And (outside this hunk) tighten the ref type near Line 35:

// near Line 35
-type MessageListPublicApi = { scrollToBottom: (smooth?: boolean) => void; scrollToMessage?: (id: string) => void }
-const messageList = ref<MessageListPublicApi | null>(null)
+type MessageListPublicApi = {
+  scrollToBottom: (smooth?: boolean) => void
+  scrollToMessage: (id: string) => void
+}
+const messageList = ref<MessageListPublicApi | null>(null)

src/renderer/src/components/TitleView.vue (1)

46-59: Add accessible labels and i18n to the navigation toggle; convert comment to English

Icon-only buttons should expose an aria-label (and optionally title) and reflect pressed state. Also, comments in code should be English per guidelines.

-      <!-- 消息导航按钮 -->
+      <!-- Message navigation toggle -->
       <Button
         class="w-7 h-7 rounded-md relative !p-0"
         size="icon"
         variant="outline"
         :class="{ 'bg-accent': chatStore.isMessageNavigationOpen }"
+        :aria-pressed="chatStore.isMessageNavigationOpen"
+        :aria-label="t('chat.navigation.title')"
+        :title="t('chat.navigation.title')"
         @click="chatStore.isMessageNavigationOpen = !chatStore.isMessageNavigationOpen"
       >
         <Icon
           icon="lucide:list"
           class="w-4 h-4 absolute top-1/2 left-1/2 transform -translate-x-1/2 -translate-y-1/2"
         />
       </Button>

src/renderer/src/i18n/zh-TW/chat.json (1)

61-62: Nit: 用語更貼近繁體中文

考慮將「匹配」改為「符合」以更貼近慣用語。

-    "noResults": "沒有找到匹配的訊息",
+    "noResults": "沒有找到符合的訊息",

src/renderer/src/components/MessageNavigationSidebar.vue (4)

199-215: Localize date/time format to the active UI locale

Hardcoding 'zh-CN' breaks formatting for other locales. Use useI18n().locale.

-const { t } = useI18n()
+const { t, locale } = useI18n()

-  if (diff < 24 * 60 * 60 * 1000 && date.getDate() === now.getDate()) {
-    return date.toLocaleTimeString('zh-CN', {
+  if (diff < 24 * 60 * 60 * 1000 && date.getDate() === now.getDate()) {
+    return date.toLocaleTimeString(locale.value, {
       hour: '2-digit',
       minute: '2-digit'
     })
   }
-  return date.toLocaleDateString('zh-CN', {
+  return date.toLocaleDateString(locale.value, {
     month: 'short',
     day: 'numeric',
     hour: '2-digit',
     minute: '2-digit'
   })

Also applies to: 134-136

---

121-128: Remove unused prop isOpen or use it for UI state

isOpen is declared but unused. Either remove it to avoid API noise or wire it to classes/transitions.

-interface Props {
-  messages: Message[]
-  isOpen: boolean
-  activeMessageId?: string
-}
+interface Props {
+  messages: Message[]
+  activeMessageId?: string
+}

---

7-11: Add accessible label to the close button (i18n)

Provide aria-label/title for the close icon; renderer strings must be localized.

-      <Button variant="ghost" size="icon" class="h-6 w-6" @click="$emit('close')">
+      <Button
+        variant="ghost"
+        size="icon"
+        class="h-6 w-6"
+        :aria-label="t('chat.navigation.title')"
+        :title="t('chat.navigation.title')"
+        @click="$emit('close')"
+      >

---

139-178: Content extraction assumptions may miss non-text blocks

getFullMessageContent ignores assistant blocks not typed as "content" and assumes user content lives in text. If your schema includes code/tool blocks or attachments, consider including their textual previews to improve search coverage.

src/renderer/src/views/ChatTabView.vue (10)

102-108: Lazy-load MessageNavigationSidebar; add type-only import for ChatView instance

• MessageNavigationSidebar is always imported eagerly while all other heavy components are lazy-loaded. Load it async to reduce initial bundle.
• Also import ChatView as a type for stronger typing on the ref.

Apply this diff within the selected lines:

-import MessageNavigationSidebar from '@/components/MessageNavigationSidebar.vue'
 const ThreadsView = defineAsyncComponent(() => import('@/components/ThreadsView.vue'))
 const TitleView = defineAsyncComponent(() => import('@/components/TitleView.vue'))
 const ChatView = defineAsyncComponent(() => import('@/components/ChatView.vue'))
 const NewThread = defineAsyncComponent(() => import('@/components/NewThread.vue'))
+const MessageNavigationSidebar = defineAsyncComponent(() => import('@/components/MessageNavigationSidebar.vue'))

Additionally, add a type-only import outside the selected lines to enable accurate typing of the template ref (see a related suggestion on Line 115):

import type ChatView from '@/components/ChatView.vue'

---

6-8: Keep sidebar width and content spacing in sync

You’re coupling the desktop sidebar width (w-80) with a separate content margin (mr-80). If one changes, the other can drift. Consider centralizing the width in a single source of truth (CSS var or a small computed that returns both classes) so updates stay consistent.

---

50-54: v-show + hidden/lg:block is redundant

v-show="... && isLargeScreen" already gates rendering visibility by viewport. The extra hidden lg:block is unnecessary and makes the state harder to reason about.

-  class="fixed right-0 top-0 w-80 max-w-80 h-full z-10 hidden lg:block"
+  class="fixed right-0 top-0 w-80 max-w-80 h-full z-10"

---

63-85: Duplicate close paths on mobile overlay

The overlay backdrop click closes the nav, and the global onClickOutside handler also tries to close it. Keeping both makes behavior drift-prone. Prefer one path (backdrop click is enough for mobile) and simplify the outside-click handler accordingly.

---

151-160: Simplify onClickOutside: limit it to the threads sidebar

Let the mobile overlay handle closing the message nav. This reduces branching and removes the need to special-case clicks inside messageNavigationRef.

-onClickOutside(sidebarRef, (event) => {
-  const isClickInMessageNavigation = messageNavigationRef.value?.contains(event.target as Node)
-
-  if (chatStore.isSidebarOpen && !isLargeScreen.value) {
-    chatStore.isSidebarOpen = false
-  }
-  if (chatStore.isMessageNavigationOpen && !isLargeScreen.value && !isClickInMessageNavigation) {
-    chatStore.isMessageNavigationOpen = false
-  }
-})
+onClickOutside(sidebarRef, () => {
+  if (chatStore.isSidebarOpen && !isLargeScreen.value) {
+    chatStore.isSidebarOpen = false
+  }
+})

---

76-76: Remove messageNavigationRef if not needed

If you adopt the previous simplification, messageNavigationRef becomes unused. Drop the template ref and the variable to avoid dead code.

-          <div ref="messageNavigationRef" class="w-80 max-w-80">
+          <div class="w-80 max-w-80">

-const messageNavigationRef = ref<HTMLElement>()

Also applies to: 148-149

---

115-115: Type the chatViewRef for safer calls

chatViewRef is untyped; calls like chatViewRef.value.messageList.scrollToMessage(...) won’t be checked. Type the ref to catch regressions at compile time.

-const chatViewRef = ref()
+const chatViewRef = ref<InstanceType<typeof ChatView> | null>(null)

Note: This assumes you add a type-only import:
import type ChatView from '@/components/ChatView.vue'.
If possible, expose a dedicated API from ChatView (e.g., defineExpose({ scrollToMessage })) so callers don’t reach into messageList.

---

216-227: Avoid hard-coded 1s delay; cancel on unmount

Closing the nav after a fixed 1s timeout is brittle and can fire after the component is torn down or the panel is re-opened. Either (a) expose a scrollToMessage(...): Promise<void> from ChatView and close when it resolves, or (b) at minimum, store and clear the timeout on unmount.

Minimal mitigation:

-    if (!isLargeScreen.value && chatStore.isMessageNavigationOpen) {
-      setTimeout(() => {
-        chatStore.isMessageNavigationOpen = false
-      }, 1000) // 延迟1秒关闭，让用户看到滚动效果
-    }
+    if (!isLargeScreen.value && chatStore.isMessageNavigationOpen) {
+      if (mobileNavCloseTimer) clearTimeout(mobileNavCloseTimer)
+      mobileNavCloseTimer = window.setTimeout(() => {
+        // Guard in case the panel was re-opened
+        if (chatStore.isMessageNavigationOpen) {
+          chatStore.isMessageNavigationOpen = false
+        }
+      }, 600) // shorter delay still shows motion while feeling snappier
+    }

And outside this block, add:

// at top-level in <script setup>
let mobileNavCloseTimer: number | undefined
onBeforeUnmount(() => mobileNavCloseTimer && clearTimeout(mobileNavCloseTimer))

If you want, I can sketch an exposed scrollToMessage Promise-based API for ChatView.

---

56-57: Pass a computed messages reference to avoid churn

If chatStore.getMessages() creates a new array each call, this will cause needless updates to MessageNavigationSidebar. Cache via a computed and bind that instead.

-        :messages="chatStore.getMessages()"
+        :messages="messages"

Add this (outside the selected lines):

const messages = computed(() => chatStore.getMessages())

Also applies to: 78-79

---

50-50: Use English for comments (repo guideline)

Several new comments are in Chinese. The repo requires English for logs/comments in .vue/.ts files. Please translate these to keep consistency.

-    <!-- 消息导航侧边栏 (大屏幕) -->
+    <!-- Message navigation sidebar (desktop) -->
-    <!-- 小屏幕模式下的消息导航侧边栏 -->
+    <!-- Message navigation sidebar (mobile) -->
-          <!-- 背景遮罩 -->
+          <!-- Backdrop -->
-          <!-- 侧边栏 -->
+          <!-- Sidebar -->
-/**
- * 处理滚动到指定消息
- */
+/**
+ * Scroll to target message
+ */

Also applies to: 63-63, 72-72, 75-75, 212-215

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Learnt from: CR
PR: ThinkInAIXYZ/deepchat#0
File: .cursor/rules/electron-best-practices.mdc:0-0
Timestamp: 2025-07-21T01:45:54.229Z
Learning: Applies to src/main/presenter/index.ts : The IPC messages from the main process to notify the view mainly rely on the EventBus index.ts to listen for events that need to be notified and then send them to the renderer through the mainWindow