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making a resizable div effect in vanilla js

making a resizable div effect in vanilla js

scroll image compare


<!DOCTYPE html>
<html lang="zh-Hans">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <meta name="author" content="xgqfrms">
  <meta name="generator" content="VS code">
  <title>scroll image compare</title>
  <style>
    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }
    .home-sec {
      padding-top: 64px;
      padding-bottom: 80px;
    }
    .before-after {
      background: #283593;
    }
    .home-col {
      width: 100%;
      max-width: 1024px;
      padding-left: 32px;
      padding-right: 32px;
      margin-left: auto;
      margin-right: auto;
      box-sizing: border-box;
    }
    .home-sec h2 {
      text-align: center;
    }
    .before-after .container {
      width: 100%;
      border-radius: 4px;
      overflow: hidden;
      position: relative;
      cursor: col-resize;
      box-shadow: 0 12px 24px 0;
      rgba(0,0,0,.18);
      min-height: 300px;
    }
    .before-after .before {
      position: absolute;
      height: 100%;
      top: 0;
      left: 0;
      overflow: hidden;
      border-right: 4px solid #00a2eb;
      box-sizing: border-box;
    }
    .before-after .before img {
      display: flex;
      height: 100%;
    }
  </style>
</head>
<body>
  <header>
    <h1>scroll image compare</h1>
  </header>
  <main class="before-after home-sec">
    <article class="home-col">
      <h2 style="color: white;">Before &amp; After</h2>
      <section class="before-after">
        <div class="container">
          <!-- <div class="before" style="width: 972.5px;"> -->
          <div class="before" style="width: 484.5px;">
            <img srcset="https://cdn.xgqfrms.xyz/css-effects-all-in-one/images/before.png">
          </div>
          <img srcset="https://cdn.xgqfrms.xyz/css-effects-all-in-one/images/after.png" class="after">
<!--           <div class="before" style="width: 484.5px;">
            <img src="https://www.fika.io/img/origin.290c77e9.png" srcset="https://cdn.xgqfrms.xyz/css-effects-all-in-one/images/before.png">
          </div>
          <img src="https://www.fika.io/img/latte.f6f60fee.png" srcset="https://cdn.xgqfrms.xyz/css-effects-all-in-one/images/after.png" class="after"> -->
        </div>
      </section>
      <div>
        <a href="https://www.fika.io/">https://www.fika.io/</a>
      </div>
    </article>
  </main>
  <footer>
    <p>copyright&copy; xgqfrms 2020</p>
  </footer>
  <!-- js -->
  <script>
    const log = console.log;
    // const div = document.querySelector(`[class="before"]`);
    const div = document.querySelector(`div.before`);
    const box = document.querySelector(`div.container`);
    // log(`box`, box)
    // box.addEventListener(`mousedown`, (e) => {
    //   log(`mousedown`, e);
    // });
    box.addEventListener(`mousemove`, (e) => {
      // log(`mousemove`, e);
      const {
        offsetX,
        offsetY,
      } = e;
      // log(`offsetX`, offsetX);
      // div.style.width = offsetX;
      div.style.width = offsetX + `px`;
    });
    // box.addEventListener(`scroll`, (e) => {
    //   log(`scroll`, e);
    // });
    // box.addEventListener(`move`, (e) => {
    //   log(`move`, e);
    // });
  </script>
</body>
</html>

refs

https://codepen.io/xgqfrms/pen/wvMQqZL

https://developer.mozilla.org/en-US/docs/Web/API/Element/mousemove_event

https://medium.com/the-z/making-a-resizable-div-in-js-is-not-easy-as-you-think-bda19a1bc53d

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posted @ 2020-11-22 19:14  xgqfrms  阅读(170)  评论(1)  编辑  收藏  举报