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<!DOCTYPE HTML>
<html lang="en">
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=394057
-->
<head>
<title>Test for Bug 394057</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<style type="text/css">
#display { background: yellow; color: black; font-family: serif; }
</style>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=394057">Mozilla Bug 394057</a>
<table id="display"><tr><td>MmMmMm...iiiIIIlll---</td></tr></table>
<div id="content" style="display: none">
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
/** Test for Bug 394057 **/
SimpleTest.waitForExplicitFinish();
var tableElement = document.getElementById("display");
var CC = SpecialPowers.Cc;
var CI = SpecialPowers.Ci;
var fe =
CC["@mozilla.org/gfx/fontenumerator;1"].createInstance(CI.nsIFontEnumerator);
var serifFonts = fe.EnumerateFonts("x-western", "serif");
var monospaceFonts = fe.EnumerateFonts("x-western", "monospace");
function table_width_for_font(font) {
tableElement.style.fontFamily = '"' + font + '"';
var result = tableElement.offsetWidth;
tableElement.style.fontFamily = "";
return result;
}
var serifIdx = 0;
var monospaceIdx = 0;
var monospaceWidth, serifWidth;
monospaceWidth = table_width_for_font(monospaceFonts[monospaceIdx]);
for (serifIdx in serifFonts) {
serifWidth = table_width_for_font(serifFonts[serifIdx]);
if (serifWidth != monospaceWidth)
break;
}
if (serifWidth == monospaceWidth) {
for (monospaceIdx in monospaceFonts) {
monospaceWidth = table_width_for_font(monospaceFonts[monospaceIdx]);
if (serifWidth != monospaceWidth)
break;
}
}
isnot(serifWidth, monospaceWidth,
"can't find serif and monospace fonts of different width");
SpecialPowers.pushPrefEnv({'set': [['font.name.serif.x-western', serifFonts[serifIdx]]]}).then(step2);
var serifWidthFromPref;
function step2() {
serifWidthFromPref = tableElement.offsetWidth;
SpecialPowers.pushPrefEnv({'set': [['font.name.serif.x-western', monospaceFonts[monospaceIdx]]]}).then(step3);
}
var monospaceWidthFromPref;
function step3() {
monospaceWidthFromPref = tableElement.offsetWidth;
is(serifWidthFromPref, serifWidth,
"changing font pref should change width of table (serif)");
is(monospaceWidthFromPref, monospaceWidth,
"changing font pref should change width of table (monospace)");
SimpleTest.finish();
}
</script>
</pre>
</body>
</html>
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