✨ feat(im): 添加 IM 聊天模块的全屏容器组件,并添加相关 review 注释
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<!-- TODO @AI:文件名,是不是应该小写? -->
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<template>
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<!--
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IM 外层容器:聊天模块的全屏沉浸式壳
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- 左侧 ToolBar:头像 + 三 Tab(消息/好友/群聊)+ 底部设置
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- 右侧 <router-view>:按路由渲染 MessagePage / FriendPage / GroupPage
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- 挂载全局弹层:UserInfoCard / ContextMenu / ImageViewer
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-->
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<div class="flex w-full h-full overflow-hidden">
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<ToolBar />
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<!--
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keep-alive 缓存子页面:
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- 切 Tab 不重建组件,ChatPanel 滚动位置、输入框草稿等 UI 状态不丢
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- Vue 3 里 keep-alive 不能直接包 <router-view>(会有警告),必须走 v-slot 拿 Component
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-->
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<router-view v-slot="{ Component }">
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<keep-alive>
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<component :is="Component" />
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</keep-alive>
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</router-view>
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<!-- 全局弹层:由 useImUiStore 统一调度 -->
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<!-- TODO @AI:【是不是没必要】大图预览改为 <el-image :preview-src-list> 在调用方就地承接,不再全局挂 -->
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<UserInfoCard />
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<ContextMenu />
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</div>
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</template>
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<script lang="ts" setup>
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import { onMounted, onUnmounted, watch } from 'vue'
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import { useConversationStore } from './store/conversationStore'
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import { useImWebSocketStore } from './store/websocketStore'
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import { useFriendStore } from './store/friendStore'
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import { useGroupStore } from './store/groupStore'
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import { useMessagePuller } from './composables/useMessagePuller'
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import { useMessageSender } from './composables/useMessageSender'
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import { ImConversationType } from '../utils/constants'
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import ToolBar from './components/ToolBar.vue'
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import UserInfoCard from './components/UserInfoCard.vue'
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import ContextMenu from './components/ContextMenu.vue'
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defineOptions({ name: 'ImIndex' })
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const conversationStore = useConversationStore()
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const wsStore = useImWebSocketStore()
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const friendStore = useFriendStore()
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const groupStore = useGroupStore()
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const { pullOnce } = useMessagePuller()
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const { readActive, syncPrivateReadStatus } = useMessageSender()
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// TODO @AI:注释
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onMounted(async () => {
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// 1. 从 IndexedDB 恢复本地会话数据(按会话分桶,需 await 以保证后续步骤拿到完整列表)
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await conversationStore.loadConversations()
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// 2. 建立 WebSocket 长连接(跨 Tab 持续保持,不因路由切换断开)
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wsStore.connect()
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// 3. 预拉好友 / 群列表:必须 await,pullOnce 内部要靠 friendStore / groupStore 补 senderNickName 和会话 name/avatar
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await Promise.all([
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friendStore.loadFriends().catch((e) => console.warn('[IM] 预拉好友失败', e)),
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groupStore.loadGroups().catch((e) => console.warn('[IM] 预拉群列表失败', e))
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])
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// 4. 增量拉取离线消息(私聊 + 群聊,使用各自 minId 游标)
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await pullOnce()
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// 5. 默认选中第一个会话(仅在消息 Tab 可见)
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const sorted = conversationStore.getSortedConversations
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if (sorted.length > 0 && !conversationStore.activeConversation) {
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conversationStore.setActiveConversation(sorted[0])
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}
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})
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// TODO @AI:注释
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onUnmounted(() => {
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wsStore.disconnect()
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})
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/**
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* 会话切换时自动标记为已读 + 私聊下拉对方已读位置:
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* - 立刻清零本地未读
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* - 同步后端已读状态;服务端会广播 READ/RECEIPT 事件通知其它端与对方
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* - 私聊额外补一次「对方已读到哪条」,弥补离线 / 多端漏掉的 RECEIPT 推送
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*/
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watch(
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() => conversationStore.activeConversation?.targetId,
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async (targetId) => {
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if (!targetId) {
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return
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}
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// TODO @AI:这里增加注释
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await readActive()
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// TODO @AI:这里增加注释
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if (conversationStore.activeConversation?.type === ImConversationType.PRIVATE) {
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void syncPrivateReadStatus(targetId)
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}
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}
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)
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</script>
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