tools/system-analyzer/log-file-reader-template.html

<!-- Copyright 2020 the V8 project authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file. -->

<style>
  @import "./index.css";

  #fileReader {
    width: 100%;
    height: 100px;
    line-height: 100px;
    text-align: center;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.5s ease-in-out;
    border: 2px solid var(--primary-color);
    background-color: var(--surface-color);
  }

  #fileReader.done {
      height: 20px;
      line-height: 20px;
      box-shadow: 0 10px 20px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
  }

  #fileReader:hover {
    background-color: var(--primary-color);
    color: var(--on-primary-color);
  }

  .loading #fileReader {
    cursor: wait;
  }

  #fileReader > input {
    display: none;
  }

  #loader {
    display: none;
  }

  .loading #loader {
    display: block;
    position: fixed;
    top: 0px;
    left: 0px;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.5);
  }

  #spinner {
    position: absolute;
    width: 100px;
    height: 100px;
    top: 40%;
    left: 50%;
    margin-left: -50px;
    border: 30px solid var(--surface-color);
    border-top: 30px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s ease-in-out infinite;
  }

  @keyframes spin {
  0% {
      transform: rotate(0deg);
  }
  100% {
      transform: rotate(360deg);
  }
  }
</style>

<section id="fileReaderSection">
    <div id="fileReader" tabindex=1 >
      <span id="label">
        Drag and drop a v8.log file into this area, or click to choose from disk.
      </span>
      <input id="file" type="file" name="file">
    </div>
    <div id="loader">
      <div id="spinner"></div>
    </div>
</section>