ruler_track_test.html - Android社区 - https://www.androidos.net.cn/

<!DOCTYPE HTML>
<html>
<!--
Copyright (c) 2012 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<head i18n-values="dir:textdirection;">
<title>Track tests</title>
<style>
.container {
  border: 1px solid red;
}
</style>
<script src="/src/base.js"></script>
<script>
  base.require('unittest');
  base.require('test_utils');
  base.require('timeline_viewport');
  base.require('tracks.ruler_track');
</script>
</head>
<body>
<script>
  'use strict';

  var Viewport = tracing.TimelineViewport;
  var RulerTrack = tracing.tracks.RulerTrack;

  function testViewport() {
    var testEl = this.addHTMLOutput();

    var track = RulerTrack();
    testEl.appendChild(track);
    track.viewport = new Viewport(testEl);
    track.viewport.setPanAndScale(0,
        track.clientWidth / 1000);
  }
</script>
</body>
</html>