LinuxMirrors/docs/theme/partials/palette.html

<form class="md-header__option" data-md-component="palette">
  {% for option in config.theme.palette %} {% set scheme = option.scheme | d("default", true) %} {% set primary = option.primary | d("indigo", true) %} {% set accent = option.accent | d("indigo", true) %}
  <input class="md-option" data-md-color-media="{{ option.media }}" data-md-color-scheme="{{ scheme | replace(' ', '-') }}" data-md-color-primary="{{ primary | replace(' ', '-') }}" data-md-color-accent="{{ accent | replace(' ', '-') }}" {% if option.toggle %} aria-label="{{ option.toggle.name }}" {% else %} aria-hidden="true" {% endif %} type="radio" name="__palette" id="__palette_{{ loop.index0 }}" />
  {% if option.toggle %}
  <label class="md-header__button md-icon" title="{{ option.toggle.name }}" for="__palette_{{ loop.index % loop.length }}" hidden> {% include ".icons/" ~ option.toggle.icon ~ ".svg" %} </label>
  {% endif %} {% endfor %}
</form>
<script>
  var palette = __md_get('__palette')
  if (palette && palette.color) {
      /* Retrieve color palette for system preference */
      if (palette.color.media === '(prefers-color-scheme)') {
          var media = matchMedia('(prefers-color-scheme: light)')
          var input = document.querySelector(media.matches ? "[data-md-color-media='(prefers-color-scheme: light)']" : "[data-md-color-media='(prefers-color-scheme: dark)']")
          /* Retrieve colors for system preference */
          ;(palette.color.media = input.getAttribute('data-md-color-media')), (palette.color.scheme = input.getAttribute('data-md-color-scheme')), (palette.color.primary = input.getAttribute('data-md-color-primary')), (palette.color.accent = input.getAttribute('data-md-color-accent'))
      }
      /* Set color palette */
      for (var [key, value] of Object.entries(palette.color)) document.body.setAttribute('data-md-color-' + key, value)
  }

  document.addEventListener('DOMContentLoaded', function () {
      if (typeof document.startViewTransition !== 'function') {
          return // 不支持 View Transitions API 的浏览器直接返回
      }
      // 获取所有主题切换按钮 - 更精确的选择器
      // 只选择form[data-md-component="palette"]内部的按钮，而不是所有md-header__button
      const themeToggles = document.querySelectorAll('form[data-md-component="palette"] .md-header__button.md-icon')
      themeToggles.forEach((toggle) => {
          toggle.addEventListener(
              'click',
              function (e) {
                  // 阻止默认点击事件
                  e.preventDefault()
                  e.stopPropagation()
                  // 获取目标输入元素
                  const targetId = this.getAttribute('for')
                  const targetInput = document.getElementById(targetId)
                  if (!targetInput) return
                  // 获取当前主题状态
                  const currentScheme = document.body.getAttribute('data-md-color-scheme')
                  const isCurrentDark = currentScheme.includes('slate')
                  // 点击后会切换到相反的主题
                  const isNewDark = !isCurrentDark
                  // 当前主题和目标主题相同则不触发动画
                  if (isCurrentDark === isNewDark) {
                      targetInput.click()
                      return
                  }
                  // 动画参数
                  const x = e.clientX
                  const y = e.clientY
                  const endRadius = Math.hypot(Math.max(x, window.innerWidth - x), Math.max(y, window.innerHeight - y))
                  // 设置动画路径
                  const clipPath = [`circle(0px at ${x}px ${y}px)`, `circle(${endRadius}px at ${x}px ${y}px)`]
                  // 启动视图过渡
                  document
                      .startViewTransition(async () => {
                          // 切换主题
                          targetInput.click()
                          // 添加暗/亮模式类，用于动画控制
                          document.documentElement.classList.remove(isNewDark ? 'light' : 'dark')
                          document.documentElement.classList.add(isNewDark ? 'dark' : 'light')
                          // 等待主题变化完成
                          await new Promise((resolve) => setTimeout(resolve, 100))
                      })
                      .ready.then(() => {
                          // 视图过渡准备就绪，开始动画
                          document.documentElement.animate(
                              {
                                  clipPath: isNewDark ? [...clipPath].reverse() : clipPath,
                              },
                              {
                                  duration: 500,
                                  easing: 'ease-in',
                                  pseudoElement: isNewDark ? '::view-transition-old(root)' : '::view-transition-new(root)',
                              }
                          )
                      })
              },
              { capture: true }
          )
      })
      // 初始化主题状态类
      const currentScheme = document.body.getAttribute('data-md-color-scheme')
      const isDark = currentScheme.includes('slate')
      document.documentElement.classList.add(isDark ? 'dark' : 'light')
  })
</script>