前端页面添加BackToTop图标

apps/jingrow/frontend/src/app/layouts/AppLayout.vue

@@ -37,6 +37,9 @@
       class="mobile-overlay"
       @click="toggleSidebar"
     ></div>
+
+    <!-- 返回顶部按钮 -->
+    <BackToTop />
   </n-layout>
 </template>
 
@@ -45,6 +48,7 @@ import { ref, watch, onMounted, onUnmounted } from 'vue'
 import { NLayout, NLayoutSider, NLayoutHeader, NLayoutContent } from 'naive-ui'
 import AppSidebar from './AppSidebar.vue'
 import AppHeader from './AppHeader.vue'
+import BackToTop from './BackToTop.vue'
 
 const SIDEBAR_COLLAPSE_KEY = 'app.sidebar.collapsed'
 const collapsed = ref(localStorage.getItem(SIDEBAR_COLLAPSE_KEY) === 'true')

apps/jingrow/frontend/src/app/layouts/BackToTop.vue

@@ -0,0 +1,206 @@
+<template>
+  <transition name="back-to-top-fade">
+    <n-button
+      v-if="visible"
+      circle
+      type="primary"
+      size="large"
+      class="back-to-top-btn"
+      @click="scrollToTop"
+      :title="t('Back to top')"
+    >
+      <template #icon>
+        <Icon icon="tabler:arrow-up" :width="20" :height="20" />
+      </template>
+    </n-button>
+  </transition>
+</template>
+
+<script setup lang="ts">
+import { ref, onMounted, onUnmounted, nextTick } from 'vue'
+import { NButton } from 'naive-ui'
+import { Icon } from '@iconify/vue'
+import { t } from '@/shared/i18n'
+
+// 显示/隐藏状态
+const visible = ref(false)
+
+// 滚动阈值（滚动超过多少像素后显示按钮）
+const SCROLL_THRESHOLD = 300
+
+// 存储已注册的滚动容器，用于清理
+const registeredContainers = ref<(Element | Window)[]>([])
+
+// 找到所有可能的滚动容器
+const findScrollContainers = (): (Element | Window)[] => {
+  const containers: (Element | Window)[] = [window]
+  
+  // 查找 .content-wrapper 容器
+  const contentWrapper = document.querySelector('.content-wrapper')
+  if (contentWrapper) {
+    containers.push(contentWrapper)
+  }
+  
+  // 查找其他可能的滚动容器
+  const scrollableElements = document.querySelectorAll('[class*="scroll"], [class*="content"], [class*="wrapper"]')
+  scrollableElements.forEach(el => {
+    const style = window.getComputedStyle(el)
+    if (style.overflowY === 'auto' || style.overflowY === 'scroll' || 
+        style.overflow === 'auto' || style.overflow === 'scroll') {
+      if (!containers.includes(el)) {
+        containers.push(el)
+      }
+    }
+  })
+  
+  console.log('找到的所有滚动容器:', containers.map(c => 
+    c === window ? 'window' : (c as Element).className || (c as Element).tagName
+  ))
+  return containers
+}
+
+// 获取容器的滚动位置
+const getScrollTop = (container: Element | Window): number => {
+  if (container === window) {
+    return window.pageYOffset || document.documentElement.scrollTop || 0
+  } else {
+    return (container as Element).scrollTop || 0
+  }
+}
+
+// 滚动到顶部
+const scrollToTop = () => {
+  const containers = registeredContainers.value.length > 0 
+    ? registeredContainers.value 
+    : findScrollContainers()
+  
+  console.log('滚动容器前状态:', containers.map(c => ({
+    container: c === window ? 'window' : (c as Element).className || (c as Element).tagName,
+    scrollTop: getScrollTop(c)
+  })))
+  
+  // 滚动所有容器到顶部
+  containers.forEach(container => {
+    if (container === window) {
+      window.scrollTo({
+        top: 0,
+        behavior: 'smooth'
+      })
+    } else {
+      const el = container as Element
+      el.scrollTo({
+        top: 0,
+        behavior: 'smooth'
+      })
+    }
+  })
+  
+  console.log('执行了滚动操作')
+}
+
+// 处理滚动事件
+const handleScroll = () => {
+  // 使用已注册的容器，如果没有则重新查找
+  const containers = registeredContainers.value.length > 0 
+    ? registeredContainers.value 
+    : findScrollContainers()
+  
+  if (containers.length === 0) {
+    return
+  }
+  
+  // 检查所有容器，取最大滚动值
+  let maxScrollTop = 0
+  containers.forEach(container => {
+    const scrollTop = getScrollTop(container)
+    if (scrollTop > maxScrollTop) {
+      maxScrollTop = scrollTop
+    }
+  })
+  
+  // 根据最大滚动值判断是否显示按钮
+  visible.value = maxScrollTop > SCROLL_THRESHOLD
+  
+  // 调试日志
+  if (maxScrollTop > 0) {
+    console.log('滚动检测:', {
+      maxScrollTop,
+      visible: visible.value,
+      containers: containers.map(c => ({
+        container: c === window ? 'window' : (c as Element).className || (c as Element).tagName,
+        scrollTop: getScrollTop(c)
+      }))
+    })
+  }
+}
+
+onMounted(() => {
+  // 延迟查找容器，确保 DOM 已渲染
+  nextTick(() => {
+    const containers = findScrollContainers()
+    
+    // 保存容器引用
+    registeredContainers.value = containers
+    
+    // 为所有容器添加滚动监听
+    containers.forEach(container => {
+      container.addEventListener('scroll', handleScroll, { passive: true })
+    })
+    
+    // 初始检查
+    handleScroll()
+  })
+})
+
+onUnmounted(() => {
+  // 清理所有滚动监听器
+  registeredContainers.value.forEach(container => {
+    container.removeEventListener('scroll', handleScroll)
+  })
+  registeredContainers.value = []
+})
+</script>
+
+<style scoped>
+.back-to-top-btn {
+  position: fixed;
+  right: 24px;
+  bottom: 24px;
+  z-index: 1000;
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+.back-to-top-btn:hover {
+  transform: translateY(-2px);
+  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
+}
+
+/* 移动端调整位置 */
+@media (max-width: 768px) {
+  .back-to-top-btn {
+    right: 16px;
+    bottom: 16px;
+    width: 48px;
+    height: 48px;
+  }
+}
+
+/* 淡入淡出动画 */
+.back-to-top-fade-enter-active,
+.back-to-top-fade-leave-active {
+  transition: opacity 0.3s ease, transform 0.3s ease;
+}
+
+.back-to-top-fade-enter-from,
+.back-to-top-fade-leave-to {
+  opacity: 0;
+  transform: scale(0.8) translateY(10px);
+}
+
+.back-to-top-fade-enter-to,
+.back-to-top-fade-leave-from {
+  opacity: 1;
+  transform: scale(1) translateY(0);
+}
+</style>