423 lines
16 KiB
Vue
423 lines
16 KiB
Vue
<template>
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<div class="flex flex-1 flex-col min-w-0 bg-[var(--el-fill-color-light)]">
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<template v-if="conversationStore.activeConversation">
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<!-- 顶部：会话名 + 右侧功能图标 -->
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<div
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class="flex items-center justify-between h-14 px-5 bg-[var(--el-fill-color-light)] border-b border-[var(--el-border-color-light)]"
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>
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<span class="text-base font-medium text-[var(--el-text-color-primary)]">
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{{ conversationStore.activeConversation?.name || '' }}
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</span>
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<div class="flex gap-3 items-center">
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<!-- 聊天历史：从输入区底部工具栏挪到顶部右上角，对齐微信 PC（点击弹窗承接历史消息） -->
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<el-tooltip content="聊天历史" placement="bottom">
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<Icon
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icon="ant-design:profile-outlined"
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:size="20"
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class="message-panel__header-icon cursor-pointer"
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@click="historyVisible = true"
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/>
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</el-tooltip>
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<!-- 信息抽屉入口：群聊 / 私聊统一用 3 点图标，对齐微信 PC；
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sideVisible 在群 / 私聊两个抽屉之间共用一个 ref，由 v-if-else 决定挂哪个 -->
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<el-tooltip :content="isGroup ? '群聊信息' : '聊天信息'" placement="bottom">
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<Icon
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icon="ant-design:more-outlined"
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:size="20"
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class="message-panel__header-icon cursor-pointer"
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@click="toggleSide"
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/>
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</el-tooltip>
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</div>
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</div>
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<!-- 中间：消息列表 -->
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<div
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ref="listRef"
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class="relative flex-1 py-2 overflow-y-auto bg-[var(--el-bg-color-page)]"
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@scroll="handleScroll"
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>
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<div
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v-if="messages.length === 0"
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class="flex items-center justify-center h-full text-sm text-[var(--el-text-color-secondary)]"
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>
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暂无消息
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</div>
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<!-- data-message-id 给 MessageHistory "定位到聊天位置" 用：父级通过 querySelector
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找到这层 wrapper，scrollIntoView + 加高亮 class；id=0 的本地占位消息跳过 -->
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<div
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v-for="msg in messages"
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:key="msg.id || msg.clientMessageId"
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:data-message-id="msg.id || ''"
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class="message-panel__message-anchor"
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>
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<MessageItem :message="msg" />
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</div>
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<!-- 回到底部浮动按钮（滚动不在底部时显示） -->
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<transition name="message-panel__jump-fade">
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<div
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v-if="showJumpToBottom"
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class="message-panel__jump-bottom sticky bottom-3 left-1/2 inline-flex gap-1.5 items-center w-fit mx-auto px-3.5 py-1.5 text-xs text-[#409eff] bg-[var(--el-bg-color-overlay)] rounded-2xl shadow-[0_2px_8px_rgba(0,0,0,0.12)] cursor-pointer hover:text-white hover:bg-[#409eff]"
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@click="scrollToBottom(true)"
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>
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<Icon icon="ant-design:down-outlined" :size="14" />
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<span v-if="newMessageCount > 0" class="font-medium">
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{{ newMessageCount > 99 ? '99+' : newMessageCount }} 条新消息
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</span>
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<span v-else>回到底部</span>
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</div>
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</transition>
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</div>
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<!-- 底部：输入框
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:key 绑会话标识，切换 A → B 时强制重建组件 → editor / mention range / pendingAtUserIds
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全部清零，避免上一会话的草稿和 @ 被发到新会话 -->
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<!-- TODO @AI：切换时，之前的要被保留！ -->
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<!-- TODO @AI：切换时，用户如果有输入信息，需要把 lastContent 变成输入信息； -->
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<MessageInput :key="messageInputKey" />
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<!-- 右侧信息抽屉：群聊 / 私聊各自一份 -->
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<ConversationGroupSide
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v-if="isGroup"
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v-model="sideVisible"
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:group="groupInfo"
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:conversation="conversationStore.activeConversation"
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:members="groupMembers"
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:friends="friends"
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@reload="reloadGroupData"
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@open-history="historyVisible = true"
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/>
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<ConversationPrivateSide
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v-else
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v-model="sideVisible"
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:conversation="conversationStore.activeConversation"
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:friend="privateFriend"
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:friends="friends"
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@open-history="historyVisible = true"
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/>
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<!-- 历史消息抽屉 -->
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<MessageHistory v-model="historyVisible" @locate="handleLocate" />
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</template>
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<div
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v-else
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class="flex items-center justify-center h-full text-sm text-[var(--el-text-color-secondary)]"
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>
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<span>选择一个会话开始聊天</span>
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</div>
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</div>
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</template>
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<script lang="ts" setup>
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import { ref, watch, nextTick, computed } from 'vue'
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import Icon from '@/components/Icon/src/Icon.vue'
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import { useConversationStore } from '../../../../store/conversationStore'
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import { useFriendStore } from '../../../../store/friendStore'
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import { getMemberDisplayName } from '@/views/im/utils/user'
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import { useGroupStore } from '../../../../store/groupStore'
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import { ImConversationType } from '@/views/im/utils/constants'
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import { getConversationKey } from '@/views/im/utils/conversation'
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import { CommonStatusEnum } from '@/utils/constants'
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import MessageItem from './MessageItem.vue'
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import MessageInput from '../input/MessageInput.vue'
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import MessageHistory from './MessageHistory.vue'
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import ConversationGroupSide from '../conversation/ConversationGroupSide.vue'
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import ConversationPrivateSide from '../conversation/ConversationPrivateSide.vue'
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import type { FriendLite, GroupLite } from '../../../../types'
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import type { GroupMemberLite } from '../../../../components/group/GroupMember.vue'
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defineOptions({ name: 'ImMessagePanel' })
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const conversationStore = useConversationStore()
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const friendStore = useFriendStore()
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const groupStore = useGroupStore()
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const listRef = ref<HTMLElement>()
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const messages = computed(() => conversationStore.getActiveMessages)
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const isGroup = computed(
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() => conversationStore.activeConversation?.type === ImConversationType.GROUP
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)
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/**
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* MessageInput 的 :key —— 切群时强制 unmount + remount，让 editor / mention range /
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* 上一会话草稿全部归零；用 fallback 'none' 避开 activeConversation 短暂为 null 的窗口
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*/
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const messageInputKey = computed(() => {
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const conv = conversationStore.activeConversation
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return conv ? getConversationKey(conv) : 'none'
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})
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/** "是否停留在底部"的阈值：距离底部 < 80px 视为底部 */
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const BOTTOM_THRESHOLD = 80
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/** 当前是否已不在底部（显示"回到底部"按钮） */
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const showJumpToBottom = ref(false)
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/** 不在底部期间累计的新消息数 */
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const newMessageCount = ref(0)
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/**
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* 当前激活的群详情：优先 groupStore（带详细字段），未加载完时用 activeConversation 兜底
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*
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* groupStore 是按需懒加载的，初次进群时 ensureGroupData 触发后才会有完整数据；
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* 兜底字段（name / avatar）保证 header 不会"闪空"，notice / ownerId / memberCount
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* 必须等 store 就位才有值（这些字段在 conversation 里没有）
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*/
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const groupInfo = computed<
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(GroupLite & { notice?: string; remarkNickName?: string; ownerId?: number }) | undefined
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>(() => {
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const conversation = conversationStore.activeConversation
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if (!conversation || conversation.type !== ImConversationType.GROUP) {
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return undefined
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}
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const group = groupStore.getGroup(conversation.targetId)
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return {
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id: conversation.targetId,
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name: group?.name || conversation.name,
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showGroupName: group?.name || conversation.name,
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showImage: group?.avatar || conversation.avatar,
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notice: group?.notice,
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ownerId: group?.ownerUserId,
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memberCount: group?.memberCount
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}
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})
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// 群成员列表：直接取 groupStore 缓存，map 成 GroupMemberLite 给下游消费（@-mention / 邀请等）
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const groupMembers = computed<GroupMemberLite[]>(() => {
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const conversation = conversationStore.activeConversation
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if (!conversation || conversation.type !== ImConversationType.GROUP) {
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return []
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}
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const group = groupStore.getGroup(conversation.targetId)
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return (group?.members || []).map((member) => {
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// 显示名走「好友备注 > 群备注 > 真实昵称」三级；头像走 nickname 保稳定
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const friend = friendStore.getFriend(member.userId)
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return {
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userId: member.userId,
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showName: getMemberDisplayName(member, friend),
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nickname: member.nickname,
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avatar: member.avatar,
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status: member.status
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}
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})
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})
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/** 好友列表：群侧用于"邀请入群"，私聊侧用于"+创建群"，统一从 friendStore 映射成 FriendLite 窄接口 */
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const friends = computed<FriendLite[]>(() =>
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friendStore.getActiveFriends.map((friend) => ({
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id: friend.friendUserId,
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nickname: friend.nickname,
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avatar: friend.avatar,
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deleted: friend.status === CommonStatusEnum.DISABLE
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}))
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)
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/** 切换到群会话时同步群信息 + 成员；各自 fire-and-forget + catch，任何一项失败不牵连其它 */
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async function ensureGroupData(groupId: number) {
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// 远程异步拉群信息（群名 / 公告 / 群主等元数据）
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groupStore.fetchGroupInfo(groupId).catch((error) => {
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console.warn('[IM MessagePanel] fetchGroupInfo 失败', { groupId }, error)
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})
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// 先从 IDB 同步加载群成员，让首帧立即出成员名 / 头像
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await groupStore.loadGroupMembers(groupId).catch((error) => {
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console.warn('[IM MessagePanel] loadGroupMembers 失败', { groupId }, error)
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return null
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})
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// 再从远程异步拉成员，强刷以跳过 in-memory 短路，每次进群都能拿到最新成员状态
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groupStore.fetchGroupMembers(groupId, true).catch((error) => {
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console.warn('[IM MessagePanel] fetchGroupMembers 失败', { groupId }, error)
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})
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}
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/** 群信息抽屉里点"刷新"：强拉一次最新群元数据 + 群成员 */
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function reloadGroupData() {
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const conversation = conversationStore.activeConversation
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if (!conversation || conversation.type !== ImConversationType.GROUP) {
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return
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}
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groupStore.fetchGroupInfo(conversation.targetId)
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groupStore.fetchGroupMembers(conversation.targetId, true)
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}
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const historyVisible = ref(false)
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const sideVisible = ref(false) // 信息抽屉开关：群聊 / 私聊共用一个 ref
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/** 信息抽屉的 toggle：跟 header 上 3 点图标按钮共用 */
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function toggleSide() {
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sideVisible.value = !sideVisible.value
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}
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/** 当前私聊对应的好友（抽屉头部展示用） */
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const privateFriend = computed(() => {
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const conversation = conversationStore.activeConversation
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if (!conversation || conversation.type !== ImConversationType.PRIVATE) {
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return undefined
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}
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return friendStore.getFriend(conversation.targetId)
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})
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/** 计算距离底部的像素 */
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function distanceFromBottom(): number {
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const el = listRef.value
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if (!el) {
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return 0
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}
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return el.scrollHeight - el.scrollTop - el.clientHeight
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}
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/**
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* 消息列表滚动事件：刷新"是否在底部"状态
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* - 在底部：隐藏"回到底部"浮窗 + 清掉"未读新消息"计数
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* - 不在底部：显示"回到底部"浮窗，新消息会累计到 newMessageCount
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*/
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function handleScroll() {
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const dist = distanceFromBottom()
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const atBottom = dist <= BOTTOM_THRESHOLD
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showJumpToBottom.value = !atBottom
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if (atBottom) {
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newMessageCount.value = 0
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}
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}
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/**
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* 滚到底部：切会话 / 收到新消息（且当前在底部）/ 用户主动点"回到底部" 都走这里
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*
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* 包 nextTick 是为了等 v-for 把新消息真正渲染进 DOM 后再算 scrollHeight，
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* 否则可能滚到的还是旧高度（差最后一条的位置）。smooth=true 走平滑动画，
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* 适合用户主动点击；初始 / 自动滚动用 auto，避免用户感知到动画拖拽
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*/
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function scrollToBottom(smooth = false) {
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nextTick(() => {
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if (!listRef.value) {
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return
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}
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listRef.value.scrollTo({
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top: listRef.value.scrollHeight,
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behavior: smooth ? 'smooth' : 'auto'
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})
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newMessageCount.value = 0
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showJumpToBottom.value = false
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})
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}
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/**
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* 定位到聊天位置：MessageHistory 行上"定位"按钮触发
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*
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* 1. 先关掉历史弹窗（避免 scroll 时遮挡 + dialog 关闭后让聊天面板拿回焦点）
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* 2. nextTick 等弹窗 leave 动画 / 列表渲染稳定后再查 DOM
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* 3. 按 data-message-id 找 wrapper，scrollIntoView({ block: center }) 让消息落到视口中部
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* 4. 加 --highlight class 短暂高亮，提示用户"就是这条"
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*/
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async function handleLocate(messageId: number) {
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if (!messageId) {
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return
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}
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await nextTick()
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if (!listRef.value) {
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return
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}
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const target = listRef.value.querySelector<HTMLElement>(`[data-message-id="${messageId}"]`)
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if (!target) {
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return
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}
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target.scrollIntoView({ behavior: 'smooth', block: 'center' })
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target.classList.add('message-panel__message-anchor--highlight')
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setTimeout(() => {
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target.classList.remove('message-panel__message-anchor--highlight')
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}, 1600)
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}
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/**
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* 消息数量变化时的滚动跟进策略
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* - 当前在底部 → 自动滚到新底部（用户在"实时跟读"，体验上跟微信一致）
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* - 不在底部 → 累计 newMessageCount，让 sticky 浮窗显示"X 条新消息"，让用户主动点
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*/
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watch(
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() => messages.value.length,
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(newLen, oldLen) => {
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// 仅处理新增（delta > 0）；删除 / 撤回让 length 减少时不动滚动状态
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const delta = (newLen || 0) - (oldLen || 0)
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if (delta <= 0) {
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return
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}
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// 用 BOTTOM_THRESHOLD（80px）做容差：用户稍微往上翻几行就视作"不在底部"，
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// 否则一直 auto-scroll 会把人正在读的内容顶走，体验糟糕
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const dist = distanceFromBottom()
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if (dist <= BOTTOM_THRESHOLD) {
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scrollToBottom()
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} else {
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newMessageCount.value += delta
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showJumpToBottom.value = true
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}
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}
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)
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/**
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* 切换会话：清空"在不在底部"相关状态、强制滚到底部、群会话预拉资料
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*
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* immediate:true 让首次进入页面就能正确初始化（无需等到第一次切换）
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*/
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watch(
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() => conversationStore.activeConversation?.targetId,
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(targetId) => {
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// 切群时上一会话的"未读累计 + 浮窗显示"必须清掉，否则会带到新会话里看起来很突兀
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newMessageCount.value = 0
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showJumpToBottom.value = false
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scrollToBottom()
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// 仅群聊预拉详情 / 成员（私聊对端在首屏 fetchFriends 时就拉了）
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if (targetId && conversationStore.activeConversation?.type === ImConversationType.GROUP) {
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ensureGroupData(targetId)
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}
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},
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{ immediate: true }
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)
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</script>
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<style scoped>
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/* el-icon 全局规则 .el-icon{color:var(--color,inherit)} 优先级胜过 UnoCSS，这里用 :deep + !important 兜底；
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颜色直接引用 Element Plus 主题变量，暗色模式自动切到更亮的灰 */
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.message-panel__header-icon,
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.message-panel__header-icon :deep(svg) {
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color: var(--el-text-color-regular) !important;
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fill: currentColor !important;
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transition: color 0.15s;
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}
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.message-panel__header-icon:hover,
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.message-panel__header-icon:hover :deep(svg) {
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color: var(--el-color-primary) !important;
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}
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/* sticky + translate 居中：fit-content 宽度不会撑满，transform 做水平 -50% 偏移；
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UnoCSS 表达 transform+transition 多 value 不太方便，这里用最小的 scoped CSS 承接 */
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.message-panel__jump-bottom {
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transform: translateX(-50%);
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transition:
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opacity 0.2s,
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transform 0.2s;
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}
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/* MessageHistory "定位" 跳过来时短暂高亮：1.6s 后由 JS 移除 class，配合 transition 缓出黄底 */
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.message-panel__message-anchor {
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transition: background-color 0.6s ease;
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}
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.message-panel__message-anchor--highlight {
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background-color: var(--el-color-warning-light-9);
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}
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/* 回到底部按钮的 Vue transition 钩子类名 */
|
||
.message-panel__jump-fade-enter-active,
|
||
.message-panel__jump-fade-leave-active {
|
||
transition:
|
||
opacity 0.2s,
|
||
transform 0.2s;
|
||
}
|
||
|
||
.message-panel__jump-fade-enter-from,
|
||
.message-panel__jump-fade-leave-to {
|
||
opacity: 0;
|
||
transform: translate(-50%, 20px);
|
||
}
|
||
</style>
|