1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
|
<!DOCTYPE html>
<title>Changes to view-timeline are reflected in dependent elements</title>
<link rel="help" src="https://drafts.csswg.org/scroll-animations-1/#view-timeline-shorthand">
<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 anim {
from { z-index: 0; }
to { z-index: 100; }
}
.scroller {
overflow: hidden;
width: 100px;
height: 100px;
}
.scroller > div {
height: 100px;
}
#target {
height: 0px;
z-index: -1;
}
</style>
<main id=main></main>
<script>
setup(assert_implements_animation_timeline);
function inflate(t, template) {
t.add_cleanup(() => main.replaceChildren());
main.append(template.content.cloneNode(true));
main.offsetTop;
}
async function scrollTop(e, value) {
e.scrollTop = value;
await waitForNextFrame();
}
async function scrollLeft(e, value) {
e.scrollLeft = value;
await waitForNextFrame();
}
</script>
<template id=dynamic_view_timeline_attachment>
<style>
#scroller {
timeline-scope: --t1;
}
.timeline {
view-timeline: --t1;
}
#target {
animation: anim 1s linear;
animation-timeline: --t1;
}
</style>
<div id=scroller class=scroller>
<div id=div75></div>
<div id=div25></div>
<div id=div_before></div>
<div id=target></div>
</div>
</template>
<script>
promise_test(async (t) => {
inflate(t, dynamic_view_timeline_attachment);
await scrollTop(scroller, 50);
// scrollTop=50 is 75% for div75.
div75.classList.add('timeline');
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '75', 'div75');
// Identical timelines in div75 and div25 creates an ambiguity.
div25.classList.add('timeline');
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '-1', 'ambiguous');
// Removing the timeline from div75 unambiguously links div25 to the
// timeline, making scrollTop=50 at 25% for div25.
div75.classList.remove('timeline');
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '25', 'div25');
// scrollTop=50 is before the timeline start for div_before.
div25.classList.remove('timeline');
div_before.classList.add('timeline');
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '-1', 'ahead of div_before');
// Scroll to 25% (for div_before) to verify that we're linked to that
// timeline.
await scrollTop(scroller, 150);
assert_equals(getComputedStyle(target).zIndex, '25', 'div_before');
// Linking the timeline back to div25 verifies that the new scrollTop=150 is
// actually at 75%.
div_before.classList.remove('timeline');
div25.classList.add('timeline');
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '75', 'div25 again');
}, 'Dynamically changing view-timeline attachment');
</script>
<template id=dynamic_view_timeline_axis>
<style>
#timeline {
view-timeline: --t1;
width: 100px;
height: 100px;
margin: 100px;
}
#target {
animation: anim 1s linear;
animation-timeline: --t1;
}
</style>
<div id=scroller class=scroller>
<div id=timeline style="background: red;">
<div id=target></div>
</div>
</div>
</template>
<script>
promise_test(async (t) => {
inflate(t, dynamic_view_timeline_axis);
await scrollTop(scroller, 50); // 25% (vertical)
await scrollLeft(scroller, 20); // 10% (horizontal)
assert_equals(getComputedStyle(target).zIndex, '25', 'vertical');
timeline.style.viewTimelineAxis = 'x';
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '10', 'horizontal');
}, 'Dynamically changing view-timeline-axis');
</script>
<template id=dynamic_view_timeline_inset>
<style>
#timeline {
width: 100px;
height: 100px;
margin: 100px;
view-timeline: --t1;
}
#target {
animation: anim 1s linear;
animation-timeline: --t1;
}
</style>
<div id=scroller class=scroller>
<div id=timeline style="background: red;">
<div id=target></div>
</div>
</div>
</template>
<script>
promise_test(async (t) => {
inflate(t, dynamic_view_timeline_inset);
await scrollTop(scroller, 50); // 25% (without inset).
assert_equals(getComputedStyle(target).zIndex, '25', 'without inset');
timeline.style.viewTimelineInset = '0px 50px';
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '0', 'with inset');
}, 'Dynamically changing view-timeline-inset');
</script>
<template id=timeline_display_none>
<style>
#scroller {
timeline-scope: --t1;
}
#timeline {
view-timeline: --t1;
}
#target {
animation: anim 1s linear;
animation-timeline: --t1;
}
</style>
<div id=scroller class=scroller>
<div></div>
<div id=timeline></div>
<div id=target></div>
</div>
</template>
<script>
promise_test(async (t) => {
inflate(t, timeline_display_none);
await scrollTop(scroller, 50);
assert_equals(getComputedStyle(target).zIndex, '25', 'display:block');
timeline.style.display = 'none';
await waitForNextFrame();
// The timeline became inactive.
assert_equals(getComputedStyle(target).zIndex, '-1', 'display:none');
}, 'Element with scoped view-timeline becoming display:none');
</script>
|