夜间模式切换动画

该文章引用自：夜间模式切换

新建[BlogRoot]\themes\butterfly\layout\includes\custom\sun_moon.pug，这部分其实实质上就是一个svg文件，通过js操作它的旋转显隐，淡入淡出实现动画效果。

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svg(aria-hidden='true', style='position:absolute; overflow:hidden; width:0; height:0')
  symbol#icon-sun(viewBox='0 0 1024 1024')
    path(d='M960 512l-128 128v192h-192l-128 128-128-128H192v-192l-128-128 128-128V192h192l128-128 128 128h192v192z', fill='#FFD878', p-id='8420')
    path(d='M736 512a224 224 0 1 0-448 0 224 224 0 1 0 448 0z', fill='#FFE4A9', p-id='8421')
    path(d='M512 109.248L626.752 224H800v173.248L914.752 512 800 626.752V800h-173.248L512 914.752 397.248 800H224v-173.248L109.248 512 224 397.248V224h173.248L512 109.248M512 64l-128 128H192v192l-128 128 128 128v192h192l128 128 128-128h192v-192l128-128-128-128V192h-192l-128-128z', fill='#4D5152', p-id='8422')
    path(d='M512 320c105.888 0 192 86.112 192 192s-86.112 192-192 192-192-86.112-192-192 86.112-192 192-192m0-32a224 224 0 1 0 0 448 224 224 0 0 0 0-448z', fill='#4D5152', p-id='8423')
  symbol#icon-moon(viewBox='0 0 1024 1024')
    path(d='M611.370667 167.082667a445.013333 445.013333 0 0 1-38.4 161.834666 477.824 477.824 0 0 1-244.736 244.394667 445.141333 445.141333 0 0 1-161.109334 38.058667 85.077333 85.077333 0 0 0-65.066666 135.722666A462.08 462.08 0 1 0 747.093333 102.058667a85.077333 85.077333 0 0 0-135.722666 65.024z', fill='#FFB531', p-id='11345')
    path(d='M329.728 274.133333l35.157333-35.157333a21.333333 21.333333 0 1 0-30.165333-30.165333l-35.157333 35.157333-35.114667-35.157333a21.333333 21.333333 0 0 0-30.165333 30.165333l35.114666 35.157333-35.114666 35.157334a21.333333 21.333333 0 1 0 30.165333 30.165333l35.114667-35.157333 35.157333 35.157333a21.333333 21.333333 0 1 0 30.165333-30.165333z', fill='#030835', p-id='11346')

新建[BlogRoot]\themes\butterfly\source\css_layout\sun_moon.styl，主要改变是的绘制太阳和月亮的矢量信息，还有背景颜色改进

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.Cuteen_DarkSky,
.Cuteen_DarkSky:before
  content ''
  position fixed
  left 0
  right 0
  top 0
  bottom 0
  z-index 88888888

.Cuteen_DarkSky
  background linear-gradient(to top, #f8cd71 0, #5bfde9 80%)
  &:before
    transition 2s ease all
    opacity 0
    background linear-gradient(to top, #30cfd0 0, #330867 100%)

.DarkMode
  .Cuteen_DarkSky
    &:before
      opacity 1

.Cuteen_DarkPlanet
  z-index 99999999
  position fixed
  left -50%
  top -50%
  width 200%
  height 200%
  -webkit-animation CuteenPlanetMove 2s cubic-bezier(0.7, 0, 0, 1)
  animation CuteenPlanetMove 2s cubic-bezier(0.7, 0, 0, 1)
  transform-origin center bottom


@-webkit-keyframes CuteenPlanetMove {
  0% {
    transform: rotate(0);
  }
  to {
    transform: rotate(360deg);
  }
}
@keyframes CuteenPlanetMove {
  0% {
    transform: rotate(0);
  }
  to {
    transform: rotate(360deg);
  }
}
.Cuteen_DarkPlanet
  #sun
    position absolute
    border-radius 100%
    left 44%
    top 30%
    height 6rem
    width 6rem
    background #ffee94
    box-shadow 0 0 40px #ffee94
    // opacity 0

  #moon
    position absolute
    border-radius 100%
    left 44%
    top 30%
    position absolute
    border-radius 100%
    height 6rem
    width 6rem
    box-shadow -1.8em 1.8em 0 0.2em #fff
    // opacity 1

  // &:after
  //   position absolute
  //   left 42%
  //   top 30%
  //   width 6rem
  //   height 6rem
  //   border-radius 50%
  //   content ''
  //   background #ffef9e
  //   box-shadow 0 0 30px #ffef9e

.search
  span
    display none

.menus_item
  a
    text-decoration none!important
//按钮相关，对侧栏按钮做过魔改的可以调整这里的数值
// .icon-V
//   padding 5px

新建[BlogRoot]\themes\butterfly\source\js\sun_moon.js，去除了冗余代码，去jquery。这里主要改进是由原来的after遮罩换为两个元素，再通过定时器来控制各自元素的透明度达到绘制太阳和月亮的目的

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function switchNightMode() {
    document.querySelector('body').insertAdjacentHTML('beforeend', '<div class="Cuteen_DarkSky"><div class="Cuteen_DarkPlanet"><div id="sun"></div><div id="moon"></div></div></div>'),
        setTimeout(function () {
            document.querySelector('body').classList.contains('DarkMode') ? (document.querySelector('body').classList.remove('DarkMode'), localStorage.setItem('isDark', '0'), document.getElementById('modeicon').setAttribute('xlink:href', '#icon-moon')) : (document.querySelector('body').classList.add('DarkMode'), localStorage.setItem('isDark', '1'), document.getElementById('modeicon').setAttribute('xlink:href', '#icon-sun')),
                setTimeout(function () {
                    document.getElementsByClassName('Cuteen_DarkSky')[0].style.transition = 'opacity 3s';
                    document.getElementsByClassName('Cuteen_DarkSky')[0].style.opacity = '0';
                    setTimeout(function () {
                        document.getElementsByClassName('Cuteen_DarkSky')[0].remove();
                    }, 1e3);
                }, 2e3)
        })
    const nowMode = document.documentElement.getAttribute('data-theme') === 'dark' ? 'dark' : 'light'
    if (nowMode === 'light') {
        // 先设置太阳月亮透明度
        document.getElementById("sun").style.opacity = "1";
        document.getElementById("moon").style.opacity = "0";
        setTimeout(function () {
            document.getElementById("sun").style.opacity = "0";
            document.getElementById("moon").style.opacity = "1";
        }, 1000);

        activateDarkMode()
        saveToLocal.set('theme', 'dark', 2)
        // GLOBAL_CONFIG.Snackbar !== undefined && btf.snackbarShow(GLOBAL_CONFIG.Snackbar.day_to_night)
        document.getElementById('modeicon').setAttribute('xlink:href', '#icon-sun')
        // 延时弹窗提醒
        setTimeout(() => {
            new Vue({
                data: function () {
                    this.$notify({
                        title: "关灯啦🌙",
                        message: "当前已成功切换至夜间模式！",
                        position: 'top-left',
                        offset: 50,
                        showClose: true,
                        type: "success",
                        duration: 5000
                    });
                }
            })
        }, 2000)
    } else {
        // 先设置太阳月亮透明度
        document.getElementById("sun").style.opacity = "0";
        document.getElementById("moon").style.opacity = "1";
        setTimeout(function () {
            document.getElementById("sun").style.opacity = "1";
            document.getElementById("moon").style.opacity = "0";
        }, 1000);
        
        activateLightMode()
        saveToLocal.set('theme', 'light', 2)
        document.querySelector('body').classList.add('DarkMode'), document.getElementById('modeicon').setAttribute('xlink:href', '#icon-moon')
        setTimeout(() => {
            new Vue({
                data: function () {
                    this.$notify({
                        title: "开灯啦🌞",
                        message: "当前已成功切换至白天模式！",
                        position: 'top-left',
                        offset: 50,
                        showClose: true,
                        type: "success",
                        duration: 5000
                    });
                }
            })
        }, 2000)
    }
    // handle some cases
    typeof utterancesTheme === 'function' && utterancesTheme()
    typeof FB === 'object' && window.loadFBComment()
    window.DISQUS && document.getElementById('disqus_thread').children.length && setTimeout(() => window.disqusReset(), 200)
}

修改[BlogRoot]\themes\butterfly\layout\includes\head.pug，在文件末位加上一行

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  //- global config
  !=partial('includes/head/config', {}, {cache: true})

  include ./head/config_site.pug
  include ./head/noscript.pug

  !=fragment_cache('injectHeadJs', function(){return inject_head_js()})

  !=fragment_cache('injectHead', function(){return injectHtml(theme.inject.head)})
+ include ./custom/sun_moon.pug

修改[BlogRoot]\themes\butterfly\layout\includes\rightside.pug，把原本的昼夜切换按钮替换掉

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  when 'translate'
    if translate.enable
      button#translateLink(type="button" title=_p('rightside.translate_title'))= translate.default
  when 'darkmode'
    if darkmode.enable && darkmode.button
-     button#darkmode(type="button" title=_p('rightside.night_mode_title'))
-       i.fas.fa-adjust
+     a.icon-V.hidden(onclick='switchNightMode()',  title=_p('rightside.night_mode_title'))
+       i.anzhiyufont.anzhiyu-icon-circle-half-stroke
+         use#modeicon(xlink:href='#icon-moon')

在_config.anzhiyu.yml，引入一下js

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inject:
  bottom:
+    - <script src="/js/sun_moon.js" async></script>

最后 hexo 三连套，然后切换夜间/日间模式查看效果