<!
DOCTYPE html PUBLIC
"-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<
html lang=
"en-US">
<
head>
<
title>Bug 453896 Test middle
frame</
title>
<
meta http-equiv=
"Content-Type" content=
"text/html; charset=UTF-8">
<
meta http-equiv=
"Content-Style-Type" content=
"text/css">
<
script type=
"application/javascript">
function run(test_window)
{
var subdoc = document.getElementById(
"subdoc").contentDocument;
var subwin = document.getElementById(
"subdoc").contentWindow;
var style = subdoc.getElementById(
"style");
var iframe_style = document.getElementById(
"subdoc").
style;
var body_cs = subdoc.defaultView.getComputedStyle(subdoc.
body);
function query_applies(q) {
style.setAttribute(
"media", q);
return body_cs.getPropertyValue(
"text-decoration-line") ==
"underline";
}
function should_apply(q) {
test_window.ok(query_applies(q), q +
" should apply");
}
function should_not_apply(q) {
test_window.ok(!query_applies(q), q +
" should not apply");
}
// in this test, assume the common underlying implementation is correct
let width_val = 157; // pick two not-too-round numbers
let height_val = 182;
iframe_style.width = width_val +
"px";
iframe_style.height = height_val +
"px";
for (let [feature, value] of
Object.entries({
"width": width_val,
"height": height_val })) {
should_apply(
"all and (" + feature +
": " + value +
"px)");
should_not_apply(
"all and (" + feature +
": " + (value + 1) +
"px)");
should_not_apply(
"all and (" + feature +
": " + (value - 1) +
"px)");
}
iframe_style.width =
"0";
should_apply(
"all and (height)");
should_not_apply(
"all and (width)");
iframe_style.height =
"0";
should_not_apply(
"all and (height)");
should_not_apply(
"all and (width)");
should_apply(
"all and (device-height)");
should_apply(
"all and (device-width)");
iframe_style.width = width_val +
"px";
should_not_apply(
"all and (height)");
should_apply(
"all and (width)");
iframe_style.height = height_val +
"px";
should_apply(
"all and (height)");
should_apply(
"all and (width)");
}
</
script>
</
head>
<
body>
<
iframe id=
"subdoc" src=
"media_queries_iframe.html"></
iframe>
</
body>
</
html>
