letswrite-file-api-custom-input/index.html at master · letswritetw/letswrite-file-api-custom-input · GitHub

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<!DOCTYPE html>
<html>
  <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">
    <title>File API 客製上傳檔案按鈕(input file) - August - Let's Write</title>
    <meta property="fb:app_id" content="484081328635964"/>
    <meta property="og:url" content="https://letswritetw.github.io/letswrite-file-api-custom-input/"/>
    <meta property="og:type" content="website"/>
    <meta property="og:site_name" content="Let's Write"/>
    <meta property="og:title" content="File API 客製上傳檔案按鈕(input file) - Let's Write"/>
    <meta property="og:description" content="File API 客製上傳檔案按鈕(input file) - Let's Write"/>
    <meta property="og:image" content="https://letswritetw.github.io/letswrite-file-api-custom-input/fb.jpg"/>
    <meta property="og:image:width" content="1200"/>
    <meta property="og:image:height" content="630"/>

    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.1/normalize.min.css">
    <style>
      *, *::before, *::after {
        box-sizing: border-box;
      }
      html, body, .container {
        width: 100%;
        height: 100%;
        overflow: hidden;
      }
      body {
        background: #F5F5F5;
        font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "微軟正黑體", "Microsoft JhengHei";
        color: #555;
      }
      .container {
        display: flex;
        justify-content: center;
        align-content: center;
        flex-wrap: wrap;
        margin-right: auto;
        margin-left: auto;
        max-width: 480px;
      }
      h1, h6 {
        margin: 0;
      }
      h1 {
        margin-bottom: 16px;
        font-size: 28px;
      }
      h6 {
        margin-bottom: 50px;
        font-weight: normal;
        font-size: 14px;
      }
      h6 a {
        text-decoration: none;
        color: #00A7E5;
      }
      h6 a:hover {
        color: #008BBF;
      }
      input {
        display: none;
      }
      label {
        display: flex;
        justify-content: center;
        align-items: center;
        margin-bottom: 32px;
        padding: 8px 32px;
        background: #FFF;
        border: 1px solid #CCC;
        border-radius: 50px;
        cursor: pointer;
        transition: box-shadow .4s ease;
      }
      label:hover {
        box-shadow: 0 10px 20px rgba(0, 0, 0, .19), 0 6px 6px rgba(0, 0, 0, .23);
      }
      label span {
        margin-left: 12px;
        font-size: 30px;
      }
      .icon {
        width: 4vw;
      }
      figure {
        display: block;
        margin: 0;
      }
      #file_thumbnail {
        display: block;
        max-width: 100%;
        border: 1px solid #CCC;
      }
      .info-box {
        width: 100%;
      }
      @media screen and (max-width: 480px) {
        .container {
          padding-right: 12px;
          padding-left: 12px;
        }
        label span {
          font-size: 20px;
        }
      }
    </style>

    <link rel="shortcut icon" href="https://letswritetw.github.io/letswritetw/dist/img/logo_512.png"/>

    <!-- Google Tag Manager-->
    <script>
      (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
      new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
      j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
      'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
      })(window,document,'script','dataLayer','GTM-PGQ9WQT');
    </script>
  </head>
  <body>
    <!-- Google Tag Manager (noscript)-->
    <noscript>
      <iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PGQ9WQT" height="0" width="0" style="display:none;visibility:hidden"></iframe>
    </noscript>

    <div class="container">

      <h1>File API 客製上傳檔案按鈕(input file)</h1>
      <h6>
        說明文章：
        <a href="https://letswrite.tw/file-api-custom-input/" target="_blank">File API 客製上傳檔案按鈕(input file) - Let's Write</a>
      </h6>

      <section class="button-box">
        <input id="customFileInput" type="file" accept="image/*">
        <label for="customFileInput" class="button-primary">
          <img class="icon" src="upload.svg" alt="上傳檔案">
          <span>客製選擇檔案按鈕</span>
        </label>
      </section>

      <section class="info-box">
        <p>檔名：<span id="file_name"></span></p>
        <p>類型：<span id="file_type"></span></p>
        <p>大小：<span id="file_size"></span></p>
        <p>最後更新時間：<span id="file_time"></span></p>
        <p>縮圖：</p>
        <figure>
          <img id="file_thumbnail">
        </figure>
      </section>

    </div>

    <script>

      var inputFile = document.getElementById('customFileInput');

      inputFile.addEventListener('change', function(e) {

        var fileData = e.target.files[0]; // 檔案資訊
        var fileName = fileData.name; // 檔案名稱
        var fileType = fileData.type; // 檔案類型
        var fileSize = Math.floor(fileData.size * 0.001); // 檔案大小轉成kb
        var fileTime = fileData.lastModifiedDate;

        console.log(fileData); // 用開發人員工具可看到資料

        document.getElementById('file_name').innerText = fileName;
        document.getElementById('file_type').innerText = fileType;
        document.getElementById('file_size').innerText = fileSize + 'kb';
        document.getElementById('file_time').innerText = fileTime;
        document.getElementById('file_thumbnail').src = URL.createObjectURL(fileData);

      }, false);

    </script>
  </body>
</html>