From 3bea8d9f02ae179528b8673eb3f9cc6894a58381 Mon Sep 17 00:00:00 2001
From: Dawn <2439646234@qq.com>
Date: Sun, 9 Mar 2025 02:37:13 +0800
Subject: [PATCH] =?UTF-8?q?perf(component):=20:zap:=20=E4=BC=98=E5=8C=96?=
 =?UTF-8?q?=E8=99=9A=E6=8B=9F=E5=88=97=E8=A1=A8=E6=BB=9A=E5=8A=A8=E6=8E=89?=
 =?UTF-8?q?=E5=B8=A7=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

移除消息气泡动画
---
 README.en.md                                 |   4 +
 README.md                                    |   2 +-
 src/components/common/VirtualList.vue        | 249 +++++++++++--------
 src/components/rightBox/chatBox/ChatMain.vue |  49 ++--
 src/hooks/useMsgInput.ts                     |   2 +-
 src/layout/index.vue                         |   6 +-
 6 files changed, 183 insertions(+), 129 deletions(-)

diff --git a/README.en.md b/README.en.md
index 1c712354..2fa78c2a 100644
--- a/README.en.md
+++ b/README.en.md
@@ -30,6 +30,10 @@
   WeChat: <img src="https://img.shields.io/badge/cy2439646234-07C160?logo=wechat&logoColor=fff">
 </p>
 
+<p align="center">
+  ☕️ server：<a href="https://github.com/HulaSpark/HuLa-Server">github HuLa-Server</a> | <a href="https://gitee.com/HulaSpark/HuLa-Server">gitee HuLa-Server</a>
+</p>
+
 <p align="center"><a href="README.zh-CN.md">中文</a> | English</p>
 
 ## Project Introduction
diff --git a/README.md b/README.md
index ede6a01b..ab3d06f1 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@
 </p>
 
 <p align="center">
-  ☕️ 服务端：<a href="https://github.com/HulaSpark/HuLa-Server">github HuLa-Server</a> | <a href="https://github.com/HulaSpark/HuLa-Server">gitee HuLa-Server</a>
+  ☕️ 服务端：<a href="https://github.com/HulaSpark/HuLa-Server">github HuLa-Server</a> | <a href="https://gitee.com/HulaSpark/HuLa-Server">gitee HuLa-Server</a>
 </p>
 
 <p align="center"><a href="README.en.md">English</a> | 中文</p>
diff --git a/src/components/common/VirtualList.vue b/src/components/common/VirtualList.vue
index 30a38b19..802bfb84 100644
--- a/src/components/common/VirtualList.vue
+++ b/src/components/common/VirtualList.vue
@@ -17,6 +17,8 @@
 </template>
 
 <script setup lang="ts">
+import { useDebounceFn } from '@vueuse/core'
+
 const props = defineProps<{
   items: any[]
   estimatedItemHeight?: number
@@ -31,12 +33,12 @@ const emit = defineEmits<{
 }>()
 
 // 常量定义
-const DEFAULT_ESTIMATED_HEIGHT = 80 // 默认预估的每项高度
-const BUFFER_SIZE = props.buffer || 2 // 上下缓冲区域的数量
-const OVERSCAN_SIZE = 100 // 预渲染区域的像素高度，防止滚动时出现空白
-const MAX_CACHE_SIZE = 200 // 高度缓存的最大数量
+const DEFAULT_ESTIMATED_HEIGHT = 90 // 默认预估的每项高度
+const BUFFER_SIZE = props.buffer || 10 // 上下缓冲区域的数量
+const OVERSCAN_SIZE = 1000 // 预渲染区域的像素高度，防止滚动时出现空白
 const LOADING_OFFSET = 26 // 加载中需要的偏移量(26px是加载动画的高度)
 const ESTIMATED_ITEM_HEIGHT = props.estimatedItemHeight || DEFAULT_ESTIMATED_HEIGHT // 每项的预估高度
+const SCROLL_THROTTLE_DELAY = 16 // 滚动节流延迟时间(约60fps)
 
 // 响应式引用
 const containerRef = ref<HTMLElement | null>(null) // 容器元素引用
@@ -47,112 +49,64 @@ const isScrolling = ref(false) // 是否正在滚动中
 const rafId = ref<number | null>(null) // requestAnimationFrame的ID
 const lastScrollTop = ref(0) // 上次滚动位置
 const consecutiveStaticFrames = ref(0) // 连续静止帧计数
+const accumulatedHeights = ref<number[]>([]) // 缓存累积高度数组
 
 // ResizeObserver 实例
 const resizeObserver = ref<ResizeObserver | null>(null)
 
-// 清理过期的高度缓存
-const cleanupHeightCache = () => {
-  if (heights.value.size > MAX_CACHE_SIZE) {
-    // 获取所有键并按照最近使用时间排序
-    const keys = Array.from(heights.value.keys())
-    const visibleKeys = new Set(
-      props.items
-        .slice(Math.max(0, visibleRange.value.start - BUFFER_SIZE), visibleRange.value.end + BUFFER_SIZE + 1)
-        .map((item) => item.message?.id?.toString())
-        .filter(Boolean)
-    )
-
-    // 保留可见区域的缓存
-    const keysToDelete = keys.filter((key) => !visibleKeys.has(key))
-    const deleteCount = keysToDelete.length - MAX_CACHE_SIZE / 2
-
-    if (deleteCount > 0) {
-      for (const key of keysToDelete.slice(0, deleteCount)) {
-        heights.value.delete(key)
-      }
-    }
-  }
-}
+// 缓存上一次的可见数据，用于加载更多时保持稳定
+const lastVisibleData = ref<any[]>([])
 
 // 计算可见项目
 const visibleData = computed(() => {
+  // 如果正在加载更多，保持当前可见项目不变
+  if (props.isLoadingMore) {
+    return lastVisibleData.value
+  }
+
   // 根据可见范围切片并添加索引信息
-  return props.items.slice(visibleRange.value.start, visibleRange.value.end + 1).map((item, index) => ({
+  const data = props.items.slice(visibleRange.value.start, visibleRange.value.end + 1).map((item, index) => ({
     ...item,
     _index: visibleRange.value.start + index // 添加真实索引，用于渲染
   }))
+
+  // 缓存最后一次的可见数据
+  lastVisibleData.value = data
+  return data
 })
 
-// 计算列表总高度
+// 计算列表总高度（优化版）
 const totalHeight = computed(() => {
-  // 累加所有项目的高度，如果没有缓存则使用预估高度
+  // 使用缓存的累积高度数组的最后一个值
+  if (accumulatedHeights.value.length > 0) {
+    return accumulatedHeights.value[accumulatedHeights.value.length - 1]
+  }
+
+  // 如果没有缓存，才进行完整计算
   return props.items.reduce((total, item) => {
     return total + (heights.value.get(item.message?.id?.toString()) || ESTIMATED_ITEM_HEIGHT)
   }, 0)
 })
 
-// 监听列表数据变化
-watch(
-  () => props.items,
-  (newItems, oldItems) => {
-    // 如果列表完全重置，清空高度缓存
-    if (newItems.length === 0 || oldItems.length === 0) {
-      heights.value.clear()
-    }
-
-    // 数据变化时重新计算可见范围和更新高度
-    updateVisibleRange()
-    nextTick(() => {
-      updateItemHeight()
-    })
-  },
-  { deep: true }
-)
-
-// 更新项目实际高度
-const updateItemHeight = () => {
-  if (!containerRef.value) return
-
-  // 遍历可见项目，测量并缓存实际高度
-  for (const item of visibleData.value) {
-    const id = item.message?.id?.toString()
-    if (!id) continue
-
-    const el = document.getElementById(`item-${id}`)
-    if (el) {
-      const height = el.getBoundingClientRect().height
-      heights.value.set(id, height)
-    }
-  }
-
-  // 清理过期缓存
-  cleanupHeightCache()
-
-  // 非滚动状态下更新可见范围
-  if (!isScrolling.value) {
-    updateVisibleRange()
-  }
+// 计算累积高度（仅在数据变化时更新）
+const updateAccumulatedHeights = () => {
+  let totalHeight = 0
+  accumulatedHeights.value = props.items.map((item) => {
+    totalHeight += heights.value.get(item.message?.id?.toString()) || ESTIMATED_ITEM_HEIGHT
+    return totalHeight
+  })
 }
 
-// 根据滚动位置计算起始索引
+// 根据滚动位置计算起始索引（优化版）
 const getStartIndex = (scrollTop: number) => {
-  const accumulatedHeights: number[] = []
-  let totalHeight = 0
-  // 预计算累积高度 O(n)，但只需要在列表数据变化时更新
-  props.items.forEach((item, index) => {
-    totalHeight += heights.value.get(item.message?.id?.toString()) || ESTIMATED_ITEM_HEIGHT
-    accumulatedHeights[index] = totalHeight
-  })
-
-  // 二分查找 O(log n)
-  let left = 0
-  let right = accumulatedHeights.length - 1
   const target = scrollTop - OVERSCAN_SIZE
+  let left = 0
+  let right = accumulatedHeights.value.length - 1
 
+  // 使用缓存的累积高度进行二分查找
   while (left <= right) {
     const mid = Math.floor((left + right) / 2)
-    if (accumulatedHeights[mid] < target) {
+    if (accumulatedHeights.value[mid] < target) {
       left = mid + 1
     } else {
       right = mid - 1
@@ -162,19 +116,15 @@ const getStartIndex = (scrollTop: number) => {
   return Math.max(0, left - BUFFER_SIZE)
 }
 
-// 计算指定索引的偏移量
+// 计算指定索引的偏移量（优化版）
 const getOffsetForIndex = (index: number) => {
-  let total = 0
-  // 累加到目标索引前的所有项目高度
-  for (let i = 0; i < index; i++) {
-    const itemHeight = heights.value.get(props.items[i].message?.id?.toString()) || ESTIMATED_ITEM_HEIGHT
-    total += itemHeight
-  }
-  return total
+  if (index <= 0) return 0
+  if (index >= accumulatedHeights.value.length) return accumulatedHeights.value[accumulatedHeights.value.length - 1]
+  return accumulatedHeights.value[index - 1] || 0
 }
 
-// 更新可见范围
-const updateVisibleRange = () => {
+// 更新可见范围的节流版本
+const updateVisibleRangeThrottled = useDebounceFn(() => {
   if (!containerRef.value) return
 
   const scrollTop = containerRef.value.scrollTop
@@ -197,13 +147,104 @@ const updateVisibleRange = () => {
 
   // 更新可见范围和偏移量
   visibleRange.value = { start, end }
-  // 加上加载中需要的偏移量
   offset.value = getOffsetForIndex(start) + LOADING_OFFSET
+}, SCROLL_THROTTLE_DELAY)
+
+// 更新可见范围
+const updateVisibleRange = () => {
+  updateVisibleRangeThrottled()
 }
 
-// 更新可见范围的帧动画处理
+// 批量更新函数
+const batchUpdate = () => {
+  // 更新累积高度缓存
+  updateAccumulatedHeights()
+  // 更新可见范围
+  updateVisibleRange()
+  // 更新实际高度
+  nextTick(() => {
+    updateItemHeight()
+  })
+}
+
+// 监听列表数据变化（优化版）
+watch(
+  () => props.items,
+  (newItems, oldItems) => {
+    // 如果是加载更多，使用优化的更新策略
+    if (props.isLoadingMore) {
+      // 只更新累积高度缓存，其他更新推迟到加载完成后
+      updateAccumulatedHeights()
+      return
+    }
+
+    // 如果是完全重置或其他情况，执行完整更新
+    if (newItems.length === 0 || oldItems.length === 0) {
+      heights.value.clear()
+    }
+
+    // 使用批量更新
+    batchUpdate()
+  },
+  { deep: false } // 移除深度监听，提高性能
+)
+
+// 监听加载状态变化
+watch(
+  () => props.isLoadingMore,
+  (isLoading) => {
+    if (!isLoading) {
+      // 加载完成后执行一次完整的批量更新
+      nextTick(() => {
+        batchUpdate()
+      })
+    }
+  },
+  { deep: false }
+)
+
+// 更新项目实际高度（优化版）
+const updateItemHeight = () => {
+  if (!containerRef.value || props.isLoadingMore) return
+
+  let heightsUpdated = false
+  const updatedHeights = new Map()
+
+  // 批量收集高度更新
+  for (const item of visibleData.value) {
+    const id = item.message?.id?.toString()
+    if (!id) continue
+
+    const el = document.getElementById(`item-${id}`)
+    if (el) {
+      const height = el.getBoundingClientRect().height
+      if (heights.value.get(id) !== height) {
+        updatedHeights.set(id, height)
+        heightsUpdated = true
+      }
+    }
+  }
+
+  // 如果有高度更新，批量应用更新
+  if (heightsUpdated) {
+    // 批量更新高度缓存
+    updatedHeights.forEach((height, id) => {
+      heights.value.set(id, height)
+    })
+
+    // 更新累积高度缓存
+    updateAccumulatedHeights()
+
+    // 非滚动状态下更新可见范围
+    if (!isScrolling.value) {
+      updateVisibleRange()
+    }
+  }
+}
+
+// 更新可见范围的帧动画处理（优化版）
 const updateFrame = () => {
-  if (!containerRef.value) return
+  if (!containerRef.value || props.isLoadingMore) return
 
   const currentScrollTop = containerRef.value.scrollTop
 
@@ -217,7 +258,8 @@ const updateFrame = () => {
     } else if (currentScrollTop > lastScrollTop.value) {
       emit('scrollDirectionChange', 'down')
     }
-    updateVisibleRange()
+    // 使用节流的可见范围更新
+    updateVisibleRangeThrottled()
     lastScrollTop.value = currentScrollTop
   } else {
     // 滚动位置未变化，增加静止帧计数
@@ -227,7 +269,9 @@ const updateFrame = () => {
     if (consecutiveStaticFrames.value >= 3) {
       // 滚动结束，更新高度并停止动画
       isScrolling.value = false
-      updateItemHeight()
+      if (!props.isLoadingMore) {
+        updateItemHeight()
+      }
       if (rafId.value !== null) {
         cancelAnimationFrame(rafId.value)
         rafId.value = null
@@ -241,7 +285,7 @@ const updateFrame = () => {
 }
 
 // 滚动事件处理
-const handleScroll = (event: Event) => {
+const handleScroll = useDebounceFn((event: Event) => {
   emit('scroll', event)
 
   // 标记滚动状态并开始帧动画
@@ -252,15 +296,18 @@ const handleScroll = (event: Event) => {
       rafId.value = requestAnimationFrame(updateFrame)
     }
   }
-}
+}, SCROLL_THROTTLE_DELAY)
 
 onMounted(() => {
+  // 初始化累积高度缓存
+  updateAccumulatedHeights()
   // 初始化可见范围
   updateVisibleRange()
 
   // 使用 ResizeObserver 监听容器大小变化
   if (containerRef.value) {
     resizeObserver.value = new ResizeObserver(() => {
+      updateAccumulatedHeights()
       updateVisibleRange()
       nextTick(() => {
         updateItemHeight()
diff --git a/src/components/rightBox/chatBox/ChatMain.vue b/src/components/rightBox/chatBox/ChatMain.vue
index 62c16676..1cdae1ef 100644
--- a/src/components/rightBox/chatBox/ChatMain.vue
+++ b/src/components/rightBox/chatBox/ChatMain.vue
@@ -45,7 +45,7 @@
       ref="virtualListInst"
       :items="chatMessageList"
       :estimatedItemHeight="itemSize"
-      :buffer="2"
+      :buffer="10"
       :isLoadingMore="messageOptions?.isLoading && isLoadingMore"
       :isLast="messageOptions?.isLast"
       @scroll.passive="handleScroll"
@@ -400,7 +400,7 @@
 </template>
 <script setup lang="ts">
 import { EventEnum, MittEnum, MsgEnum, MessageStatusEnum } from '@/enums'
-import { type MessageType, SessionItem } from '@/services/types.ts'
+import { SessionItem } from '@/services/types.ts'
 import { useMitt } from '@/hooks/useMitt.ts'
 import { usePopover } from '@/hooks/usePopover.ts'
 import { useWindow } from '@/hooks/useWindow.ts'
@@ -751,24 +751,27 @@ const jumpToReplyMsg = async (key: string) => {
  * @param index 下标
  * @param id 用户ID
  */
-const addToDomUpdateQueue = (index: string, id: string) => {
-  // 使用 nextTick 确保虚拟列表渲染完最新的项目后进行滚动
-  nextTick(() => {
-    /** data-key标识的气泡,添加前缀用于区分用户消息，不然气泡动画会被覆盖 */
-    const dataKey = id === userUid.value ? `U${index}` : `Q${index}`
-    const lastMessageElement = document.querySelector(`[data-key="${dataKey}"]`) as HTMLElement
-    if (lastMessageElement) {
-      // 添加动画类
-      lastMessageElement.classList.add('bubble-animation')
-      // 监听动画结束事件
-      const handleAnimationEnd = () => {
-        lastMessageElement.classList.remove('bubble-animation')
-        lastMessageElement.removeEventListener('animationend', handleAnimationEnd)
-      }
-      lastMessageElement.addEventListener('animationend', handleAnimationEnd)
-    }
-  })
-}
+// const addToDomUpdateQueue = (index: string, id: string) => {
+//   // 使用 nextTick 确保虚拟列表渲染完最新的项目后进行滚动
+//   nextTick(() => {
+//     /** data-key标识的气泡,添加前缀用于区分用户消息，不然气泡动画会被覆盖 */
+//     const dataKey = id === userUid.value ? `U${index}` : `Q${index}`
+//     const lastMessageElement = document.querySelector(`[data-key="${dataKey}"]`) as HTMLElement
+//     console.log(dataKey, lastMessageElement)
+
+//     if (lastMessageElement) {
+//       console.log('触发气泡添加动画')
+//       // 添加动画类
+//       lastMessageElement.classList.add('bubble-animation')
+//       // 监听动画结束事件
+//       const handleAnimationEnd = () => {
+//         lastMessageElement.classList.remove('bubble-animation')
+//         lastMessageElement.removeEventListener('animationend', handleAnimationEnd)
+//       }
+//       lastMessageElement.addEventListener('animationend', handleAnimationEnd)
+//     }
+//   })
+// }
 
 /** 点击后滚动到底部 */
 const scrollBottom = () => {
@@ -871,9 +874,9 @@ onMounted(async () => {
   nextTick(() => {
     virtualListInst.value?.scrollTo({ position: 'bottom', behavior: 'instant' })
   })
-  useMitt.on(MittEnum.MESSAGE_ANIMATION, async (messageType: MessageType) => {
-    addToDomUpdateQueue(messageType.message.id, messageType.fromUser.uid)
-  })
+  // useMitt.on(MittEnum.MESSAGE_ANIMATION, (messageType: MessageType) => {
+  //   addToDomUpdateQueue(messageType.message.id, messageType.fromUser.uid)
+  // })
   useMitt.on(`${MittEnum.INFO_POPOVER}-Main`, (event: any) => {
     selectKey.value = event.uid
     infoPopover.value = true
diff --git a/src/hooks/useMsgInput.ts b/src/hooks/useMsgInput.ts
index 65a42e98..351cec4a 100644
--- a/src/hooks/useMsgInput.ts
+++ b/src/hooks/useMsgInput.ts
@@ -301,7 +301,7 @@ export const useMsgInput = (messageInputDom: Ref) => {
 
     // 先添加到消息列表 - 此时会显示本地预览
     chatStore.pushMsg(tempMsg)
-    useMitt.emit(MittEnum.MESSAGE_ANIMATION, tempMsg)
+    // useMitt.emit(MittEnum.MESSAGE_ANIMATION, tempMsg)
     console.log('👾临时消息:', tempMsg)
 
     // 设置发送状态的定时器
diff --git a/src/layout/index.vue b/src/layout/index.vue
index c39fed2d..3b222a6d 100644
--- a/src/layout/index.vue
+++ b/src/layout/index.vue
@@ -181,9 +181,9 @@ useMitt.on(WsResponseMessageType.MSG_RECALL, (data: RevokedMsgType) => {
 })
 useMitt.on(WsResponseMessageType.RECEIVE_MESSAGE, async (data: MessageType) => {
   chatStore.pushMsg(data)
-  if (data.fromUser.uid !== userStore.userInfo.uid) {
-    useMitt.emit(MittEnum.MESSAGE_ANIMATION, data)
-  }
+  // if (data.fromUser.uid !== userStore.userInfo.uid) {
+  //   useMitt.emit(MittEnum.MESSAGE_ANIMATION, data)
+  // }
   // 接收到通知就设置图标闪烁
   const username = useUserInfo(data.fromUser.uid).value.name!
   // 不是自己发的消息才通知