Nuxt3 实战 (六)：Footer 底部布局

<template>
  <footer class="fixed bottom-0 w-full">
    <UDivider :avatar="{ src: '/logo.svg' }" />
    <div class="flex justify-between items-center px-4 md:px-8 lg:px-32 py-3 max-sm:flex-col -mt-2.5">
      <!-- icp 备案 -->
      <ULink
        to="https://beian.miit.gov.cn/#/Integrated/index"
        target="_blank"
        active-class="text-primary"
        inactive-class="text-sm text-gray-400 hover:text-gray-600 dark:hover:text-gray-300"
      >
        <div class="flex items-center gap-2">
          <NuxtImg
            src="/icp.png"
            alt="粤ICP备2023007649号-3"
            class="w-4"
          />
          粤ICP备2023007649号-3
        </div>
      </ULink>
      <!-- 社交图标 -->
      <div class="max-sm:order-first">
        <!-- github -->
        <SocialButton
          icon="i-ri-github-line"
          url="https://github.com/baiwumm"
          tip="Github"
        />
        <!-- 微信 -->
        <SocialButton
          icon="i-ri-wechat-line"
          url="https://wechat.baiwumm.com/"
          tip="微信"
        />
        <!-- 电子邮箱 -->
        <SocialButton
          icon="i-ri-mail-line"
          url="mailto:baiwumm@foxmail.com"
          tip="Email"
        />
        <!-- 博客 -->
        <SocialButton
          icon="i-ri-quill-pen-line"
          url="https://baiwumm.com"
          tip="博客"
        />
      </div>
    </div>
  </footer>
 </template>

 <template>
  <div>
    <!-- header -->
    <AppHeader />
    <!-- main -->
    <slot />
    <!-- footer -->
    <AppFooter />
  </div>
 </template>

<script setup lang="ts">
  const colorMode = useColorMode()

  // 切换模式
  const setColorMode = () => {
    colorMode.value = colorMode.value === 'dark' ? 'light' : 'dark'
  }

  // 判断是否支持 startViewTransition API
  const enableTransitions = () =>
    'startViewTransition' in document &&
    window.matchMedia('(prefers-reduced-motion: no-preference)').matches

  // 切换动画
  async function toggleDark({ clientX: x, clientY: y }: MouseEvent) {
    const isDark = colorMode.value === 'dark'

    if (!enableTransitions()) {
      setColorMode()
      return
    }

    const clipPath = [
      `circle(0px at ${x}px ${y}px)`,
      `circle(${Math.hypot(
        Math.max(x, innerWidth - x),
        Math.max(y, innerHeight - y)
      )}px at ${x}px ${y}px)`
    ]

    await document.startViewTransition(async () => {
      setColorMode()
      await nextTick()
    }).ready

    document.documentElement.animate(
      { clipPath: !isDark ? clipPath.reverse() : clipPath },
      {
        duration: 300,
        easing: 'ease-in',
        pseudoElement: `::view-transition-${!isDark ? 'old' : 'new'}(root)`
      }
    )
  }
  </script>

  <template>
    <UTooltip :text="`切换${$colorMode.value === 'dark' ? '白天' : '黑夜'}模式`">
      <UButton
        :icon="$colorMode.value === 'dark' ? 'i-heroicons-moon-solid' : ' i-heroicons-sun-solid'"
        size="sm"
        variant="ghost"
        class="text-gray-700 dark:text-gray-200 hover:text-gray-900 dark:hover:text-white hover:bg-gray-50 dark:hover:bg-gray-800"
        @click="toggleDark"
      />
    </UTooltip>
  </template>

  <style>
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation: none;
    mix-blend-mode: normal;
  }

  ::view-transition-old(root),
  .dark::view-transition-new(root) {
    z-index: 1;
  }

  ::view-transition-new(root),
  .dark::view-transition-old(root) {
    z-index: 9999;
  }
  </style>