blob: 85ca3d5503cc387d52f4c05dff50c5b774589f16 (
plain)
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
|
<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1304689
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1285070</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<script src="/tests/SimpleTest/paint_listener.js"></script>
<script type="application/javascript" src="apz_test_utils.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<style type="text/css">
#outer {
height: 400px;
width: 415px;
overflow: scroll;
position: relative;
scroll-behavior: smooth;
}
#outer.instant {
scroll-behavior: auto;
}
#outer.contentBefore::before {
top: 0;
content: '';
display: block;
height: 2px;
position: absolute;
width: 100%;
z-index: 99;
}
</style>
<script type="application/javascript">
async function test() {
var utils = SpecialPowers.DOMWindowUtils;
var elm = document.getElementById("outer");
// Set margins on the element, to ensure it is layerized
utils.setDisplayPortMarginsForElement(0, 0, 0, 0, elm, /* priority*/ 1);
await promiseAllPaintsDone();
await promiseOnlyApzControllerFlushed();
// Take control of the refresh driver
utils.advanceTimeAndRefresh(0);
// Start a smooth-scroll animation in the compositor and let it go a few
// frames, so that there is some "user scrolling" going on (per the comment
// in AsyncPanZoomController::NotifyLayersUpdated)
elm.scrollTop = 10;
utils.advanceTimeAndRefresh(16);
utils.advanceTimeAndRefresh(16);
utils.advanceTimeAndRefresh(16);
utils.advanceTimeAndRefresh(16);
// Do another scroll update but also do a frame reconstruction within the same
// tick of the refresh driver.
elm.classList.add("instant");
elm.scrollTop = 100;
elm.classList.add("contentBefore");
// Now let everything settle and all the animations run out
for (var i = 0; i < 60; i++) {
utils.advanceTimeAndRefresh(16);
}
utils.restoreNormalRefresh();
await promiseOnlyApzControllerFlushed();
is(elm.scrollTop, 100, "The scrollTop now should be y=100");
}
if (isApzEnabled()) {
SimpleTest.waitForExplicitFinish();
pushPrefs([["apz.displayport_expiry_ms", 0]])
.then(waitUntilApzStable)
.then(test)
.then(SimpleTest.finish, SimpleTest.finishWithFailure);
}
</script>
</head>
<body>
<div id="outer">
<div id="inner">
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
this is some scrollable text.<br>
this is a second line to make the scrolling more obvious.<br>
and a third for good measure.<br>
</div>
</div>
</body>
</html>
|
