svg-graphics-element-001.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /scroll-animations/view-timelines/svg-graphics-element-001.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

  <meta charset="utf-8">

  <meta name="viewport" content="width=device-width, initial-scale=1">

  <title>View Timeline attached to an SVG graphics element</title>

</head>

<style type="text/css">

  @keyframes stroke {

    from { stroke: rgb(0, 0, 254); }

    to { stroke: rgb(0, 128, 0); }

  #line {

    animation: stroke auto linear both;

    animation-timeline: view();

    animation-range: exit-crossing;

  .spacer {

    height:  100vh;

</style>

<body>

<svg width="100" height="3000" stroke="red" stroke-width="5">

  <path id="line" d="M 50 0 V 3000"></path>

</svg>

<div class="spacer"></div>

</body>

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/web-animations/testcommon.js"></script>

<script>

  promise_test(async t => {

    const scroller = document.scrollingElement;

    const target = document.getElementById('line');

    const anim = target.getAnimations()[0];

    await anim.ready;

    assert_equals(getComputedStyle(target).stroke, 'rgb(0, 0, 254)');

    scroller.scrollTop =

        0.5*(scroller.scrollHeight - scroller.clientHeight);

    await waitForNextFrame();

    assert_equals(getComputedStyle(target).stroke, 'rgb(0, 64, 127)');

  }, 'View timeline attached to SVG graphics element');

</script>

</html>