macOS之Docker栏效果

代码 源码特效 (opens new window)

html

   <div class="glass">
      <ul class="dock">
        <li>😀</li>
        <li>😘</li>
        <li>😂</li>
        <li>😎</li>
        <li>🤪</li>
        <li>😃</li>
        <li>🤗</li>
      </ul>
   </div>
</body>
</html>

css

 html {
      font-size: 15px;
    }
    body {
      margin: 0;
      padding: 0;
      display: flex;
      width: 100%;
      min-height: 100vh;
      overflow: hidden;
      align-items: flex-end;
    }
    .glass {
      width: 100%;
      height: 8rem;
      background-color: #eee;
      display: flex;
      justify-content: center;
    }

    .dock {
      --scale: 1;
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .dock li {
      font-size: calc(6rem * var(--scale));
      padding: 0 .5rem;
      cursor: default;
      position: relative;
      top: calc((6rem * var(--scale) - 6rem) / 2 * -1 );
      transition: 15ms all ease-out;
    } 

    .dock li.loading {
      animation: 1s loading ease-in infinite;
    }

    @keyframes loading {
      0%, 100% {
        transform: translateY(0px);
      }
      60% {
        transform: translateY(-40px);
      }
    }

js

     document.querySelectorAll('.dock li').forEach(li => {

      //增加点击效果
      li.addEventListener('click', e => {
        console.log('e', e);
        // li.classList.remove('loading')
        document.querySelectorAll('.dock li').forEach(i => i.classList.remove('loading'));
        e.currentTarget.classList.add('loading');
      });

      li.addEventListener('mousemove', e => {
        let item = e.target;
        let itemRect = item.getBoundingClientRect();
        let offset = Math.abs((e.clientX - itemRect.left) / itemRect.width);
        // console.log('offset', offset);

        //初始化一个放大变量
        let scale = 0.6;

        //每次先重置变化
        resetScale();

        let prev = item.previousElementSibling || null; //获取前一个图标
        let next = item.nextElementSibling || null; //获取后一个图标

        if(prev) {
          prev.style.setProperty('--scale', 1 + scale * Math.abs(offset - 1))
        }

        item.style.setProperty('--scale', 1 + scale)

        if(next) {
          next.style.setProperty('--scale', 1 + scale * offset)
        }
      })
     });


     document.querySelector('.dock').addEventListener('mouseleave', () => {
       resetScale();
     })

     //重置scale为1
     function resetScale() {
       document.querySelectorAll('.dock li').forEach(li => {
         li.style.setProperty('--scale', 1)
       })
     }