block-view-timeline-current-time-vertical-rl.tentative.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/block-view-timeline-current-time-vertical-rl.tentative.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html id="top">

<meta charset="utf-8">

<title>View timeline current-time with vertical-rl writing mode</title>

<link rel="help" href="https://drafts.csswg.org/scroll-animations-1/#viewtimeline-interface">

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

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

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

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

<script src="/scroll-animations/view-timelines/testcommon.js"></script>

<style>

  #container {

    writing-mode: vertical-rl;

    overflow-x: scroll;

    height:  200px;

    width: 200px;

  .spacer {

    width:  800px;

  #target {

    background-color:  green;

    height:  100px;

    width:  200px;

</style>

<body>

  <div id="container">

    <div id="leading-space" class="spacer"></div>

    <div id="target"></div>

    <div id="trailing-space" class="spacer"></div>

  </div>

</body>

<script type="text/javascript">

  promise_test(async t => {

    container.scrollLeft = 0;

    await waitForNextFrame();

    const anim = CreateViewTimelineOpacityAnimation(t, target, {axis: 'block'});

    const timeline = anim.timeline;

    await anim.ready;

    // Initially before start-offset and animation effect is in the before

    // phase.

    assert_percents_equal(timeline.currentTime, -150,

                          "Timeline's currentTime at container start boundary");

    assert_percents_equal(anim.currentTime, -150,

                          "Animation's currentTime at container start boundary");

    assert_equals(getComputedStyle(target).opacity, "1",

                  'Effect is inactive in the before phase');

    // Advance to the start offset, which triggers entry to the active phase.

    container.scrollLeft = -600;

    await waitForNextFrame();

    assert_percents_equal(timeline.currentTime, 0,

                          "Timeline's current time at start offset");

    assert_percents_equal(anim.currentTime, 0,

                          "Animation's current time at start offset");

    assert_equals(getComputedStyle(target).opacity, '0.3',

                  'Effect at the start of the active phase');

    // Advance to the midpoint of the animation.

    container.scrollLeft = -800;

    await waitForNextFrame();

    assert_percents_equal(timeline.currentTime, 50,

                          "Timeline's currentTime at midpoint");

    assert_percents_equal(anim.currentTime, 50,

                          "Animation's currentTime at midpoint");

    assert_equals(getComputedStyle(target).opacity,'0.5',

                  'Effect at the midpoint of the active range');

    // Advance to the end of the animation.

    container.scrollLeft = -1000;

    anim.effect.updateTiming({ fill: 'forwards' });

    await waitForNextFrame();

    assert_percents_equal(timeline.currentTime, 100,

                          "Timeline's currentTime at end offset");

    assert_percents_equal(anim.currentTime, 100,

                          "Animation's currentTime at end offset");

    assert_equals(getComputedStyle(target).opacity, '0.7',

                  'Opacity with fill forwards at effect end time');

    anim.effect.updateTiming({ fill: 'none' });

    assert_equals(getComputedStyle(target).opacity, '1',

                  'Opacity with fill none at effect end time');

    // Advance to the scroll limit.

    container.scrollLeft = -1600;

    await waitForNextFrame();

    assert_percents_equal(timeline.currentTime, 250,

                          "Timeline's currentTime at scroll limit");

    // Hold time set when the animation finishes, which clamps the value of

    // the animation's currentTime.

    assert_percents_equal(anim.currentTime, 100,

                          "Animation's currentTime at scroll limit");

    // In the after phase, so the effect should not be applied.

    assert_equals(getComputedStyle(target).opacity, '1',

                  'After phase at scroll limit');

  }, 'View timeline with container having vertical-rl layout' );

</script>

</html>