111 lines
3.4 KiB
HTML
111 lines
3.4 KiB
HTML
<!DOCTYPE html>
|
|
<html>
|
|
<meta charset="utf-8">
|
|
<title>Timeline offset in Animation Keyframes</title>
|
|
<link rel="help" href="https://drafts.csswg.org/scroll-animations-1/#named-range-keyframes">
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
<script src="/web-animations/testcommon.js"></script>
|
|
<script src="support/testcommon.js"></script>
|
|
<style>
|
|
@keyframes fade-in-out-animation {
|
|
entry 0%, exit 100% { opacity: 0 }
|
|
entry 100%, exit 0% { opacity: 1 }
|
|
}
|
|
|
|
#subject {
|
|
background-color: rgba(0, 0, 255);
|
|
height: 200px;
|
|
width: 200px;
|
|
view-timeline-name: --foo;
|
|
animation: linear 1s both fade-in-out-animation;
|
|
animation-timeline: --foo;
|
|
}
|
|
|
|
#container {
|
|
border: 5px solid black;
|
|
height: 400px;
|
|
width: 400px;
|
|
overflow-y: scroll;
|
|
resize: both;
|
|
}
|
|
|
|
.spacer {
|
|
height: 600px;
|
|
width: 100%;
|
|
}
|
|
</style>
|
|
<body onload="runTests()">
|
|
<div id="container">
|
|
<div class="spacer"></div>
|
|
<div id="subject"></div>
|
|
<div class="spacer"></div>
|
|
</div>
|
|
</body>
|
|
|
|
<script type="text/javascript">
|
|
setup(assert_implements_animation_timeline);
|
|
|
|
function runTests() {
|
|
promise_test(async t => {
|
|
await waitForNextFrame();
|
|
|
|
// scrollTop=200 to 400 is the entry range
|
|
container.scrollTop = 200;
|
|
await waitForNextFrame();
|
|
assert_equals(getComputedStyle(subject).opacity, '0',
|
|
'Effect at entry 0%');
|
|
|
|
container.scrollTop = 300;
|
|
await waitForNextFrame();
|
|
assert_equals(getComputedStyle(subject).opacity, '0.5',
|
|
'Effect at entry 50%');
|
|
|
|
container.scrollTop = 400;
|
|
await waitForNextFrame();
|
|
assert_equals(getComputedStyle(subject).opacity, '1',
|
|
'Effect at entry 100%');
|
|
|
|
// scrollTop=600-800 is the exit range
|
|
container.scrollTop = 600;
|
|
await waitForNextFrame();
|
|
assert_equals(getComputedStyle(subject).opacity, '1',
|
|
'Effect at exit 0%');
|
|
|
|
container.scrollTop = 700;
|
|
await waitForNextFrame();
|
|
assert_equals(getComputedStyle(subject).opacity, '0.5',
|
|
'Effect at exit 50%');
|
|
|
|
container.scrollTop = 800;
|
|
await waitForNextFrame();
|
|
assert_equals(getComputedStyle(subject).opacity, '0',
|
|
'Effect at exit 100%');
|
|
|
|
// First change scrollTop so that you are at entry 100%, then resize the
|
|
// container in a way that scrollTop is the same, but now the animation is
|
|
// at entry 50% and check opacity. After changing the height of container,
|
|
// scrollTop=300-500 is the entry range
|
|
container.scrollTop = 400;
|
|
await waitForNextFrame();
|
|
assert_equals(getComputedStyle(subject).opacity, '1',
|
|
'Effect at entry 100%');
|
|
|
|
// Reducing the viewport by 100px, shifts the keyframe offsets.
|
|
// The entry range shifts from [200px, 400px] to [300px, 500px].
|
|
container.style.height = '300px';
|
|
|
|
await waitForNextFrame();
|
|
assert_equals(getComputedStyle(subject).opacity, '0.5',
|
|
'Effect at entry 50% (post resize)');
|
|
|
|
// After changing the height of container, scrollTop=600-800 is still the
|
|
// exit range
|
|
container.scrollTop = 700;
|
|
await waitForNextFrame();
|
|
assert_equals(getComputedStyle(subject).opacity, '0.5',
|
|
'Effect at exit 50% (post resize)');
|
|
});
|
|
}
|
|
</script>
|
|
</html>
|