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
|
<?xml version="1.0"?>
<?xml-stylesheet type="text/css" href="chrome://global/skin"?>
<?xml-stylesheet type="text/css" href="/tests/SimpleTest/test.css"?>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=453650
-->
<window title="Mozilla Bug 453650"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul">
<script type="application/javascript"
src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>
<!-- test code goes here -->
<script type="application/javascript">
<![CDATA[
/** Test for Bug 453650 **/
SimpleTest.waitForExplicitFinish();
var Ci = Components.interfaces;
var Cr = Components.results;
var iter = runTests();
nextTest();
function runTests() {
var iframe = document.createElement("iframe");
iframe.style.width = "300px";
iframe.style.height = "300px";
iframe.setAttribute("src", "data:text/html,<h1 id='h'>hello</h1>");
document.documentElement.appendChild(iframe);
yield whenLoaded(iframe);
info("iframe loaded");
var h1 = iframe.contentDocument.getElementById("h");
h1.style.width = "400px";
yield waitForInterruptibleReflow(iframe.docShell);
h1.style.width = "300px";
waitForReflow(iframe.docShell);
yield is(300, h1.offsetWidth, "h1 has correct width");
}
function waitForInterruptibleReflow(docShell) {
waitForReflow(docShell, true);
}
function waitForReflow(docShell, interruptible = false) {
function done() {
docShell.removeWeakReflowObserver(observer);
SimpleTest.executeSoon(nextTest);
}
var observer = {
reflow: function (start, end) {
if (interruptible) {
ok(false, "expected interruptible reflow");
} else {
ok(true, "observed uninterruptible reflow");
}
info("times: " + start + ", " + end);
ok(start < end, "reflow start time lower than end time");
done();
},
reflowInterruptible: function (start, end) {
if (!interruptible) {
ok(false, "expected uninterruptible reflow");
} else {
ok(true, "observed interruptible reflow");
}
info("times: " + start + ", " + end);
ok(start < end, "reflow start time lower than end time");
done();
},
QueryInterface: function (iid) {
if (Ci.nsIReflowObserver.equals(iid) ||
Ci.nsISupportsWeakReference.equals(iid) ||
Ci.nsISupports.equals(iid))
return this;
throw Cr.NS_ERROR_NO_INTERFACE;
},
};
docShell.addWeakReflowObserver(observer);
}
function whenLoaded(iframe) {
iframe.addEventListener("load", function onLoad() {
iframe.removeEventListener("load", onLoad);
SimpleTest.executeSoon(nextTest);
});
}
function nextTest() {
try {
iter.next();
} catch (e if e instanceof StopIteration) {
SimpleTest.finish();
}
}
]]>
</script>
<!-- test results are displayed in the html:body -->
<body xmlns="http://www.w3.org/1999/xhtml">
<a href="https://bugzilla.mozilla.org/show_bug.cgi?id=453650"
target="_blank">Mozilla Bug 453650</a>
</body>
</window>
|
