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
|
<!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_name>
<style>
.timeline {
view-timeline-name: 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_name);
await scrollTop(scroller, 50);
// scrollTop=50 is 75% for div75.
div75.classList.add('timeline');
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '75');
// scrollTop=50 is 25% for div25.
div25.classList.add('timeline');
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '25');
// scrollTop=50 is before the timeline start for div_before.
div_before.classList.add('timeline');
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '-1');
// 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');
// Now we should be back to div25's timeline, although with the new
// scrollTop=150, it's actually at 75%.
div_before.classList.remove('timeline');
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '75');
}, 'Dynamically changing view-timeline-name');
</script>
<template id=dynamic_view_timeline_axis>
<style>
#timeline {
width: 100px;
height: 100px;
margin: 100px;
view-timeline-name: t1;
}
#target {
animation: anim 1s linear;
animation-timeline: t1;
}
</style>
<div id=scroller class=scroller>
<div id=timeline style="background: red;"></div>
<div id=target></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');
timeline.style.viewTimelineAxis = 'horizontal';
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '10');
}, 'Dynamically changing view-timeline-axis');
</script>
<template id=dynamic_view_timeline_inset>
<style>
#timeline {
width: 100px;
height: 100px;
margin: 100px;
view-timeline-name: t1;
}
#target {
animation: anim 1s linear;
animation-timeline: t1;
}
</style>
<div id=scroller class=scroller>
<div id=timeline style="background: red;"></div>
<div id=target></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');
timeline.style.viewTimelineInset = '0px 50px';
await waitForCSSScrollTimelineStyle();
assert_equals(getComputedStyle(target).zIndex, '0');
}, 'Dynamically changing view-timeline-inset');
</script>
<template id=timeline_display_none>
<style>
#timeline {
view-timeline-name: 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');
timeline.style.display = 'none';
assert_equals(getComputedStyle(target).zIndex, '-1');
}, 'Element with view-timeline becoming display:none');
</script>
|
