79 lines
2.2 KiB
HTML
79 lines
2.2 KiB
HTML
<!DOCTYPE HTML>
|
|
<html>
|
|
<head>
|
|
<title>Test InspectorUtils.parseStyleSheet with nested rules</title>
|
|
<script src="/tests/SimpleTest/SimpleTest.js"></script>
|
|
<style>
|
|
h1 {
|
|
.mySpan {
|
|
background: gold;
|
|
&.mySpan {
|
|
color: red;
|
|
}
|
|
}
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<h1>Hello<span class="mySpan">world</span>
|
|
<script>
|
|
add_task(function() {
|
|
info("Flush layout");
|
|
// This is important to reproduce the original issue
|
|
document.documentElement.getBoundingClientRect();
|
|
|
|
const InspectorUtils = SpecialPowers.InspectorUtils;
|
|
const sheet = document.styleSheets[0];
|
|
const spanEl = document.querySelector(".mySpan");
|
|
|
|
is(
|
|
sheet.cssRules[0].cssRules[0].cssRules[0].cssText,
|
|
`&.mySpan { color: red; }`,
|
|
"Nested rule has expected initial text"
|
|
);
|
|
|
|
is(
|
|
InspectorUtils.getMatchingCSSRules(spanEl).length,
|
|
2,
|
|
"getMatchingCSSRules returned 2 rules for .mySpan"
|
|
);
|
|
|
|
info("Modify stylesheet using InspectorUtils.parseStyleSheet");
|
|
InspectorUtils.parseStyleSheet(
|
|
sheet,
|
|
`h1 {
|
|
.mySpan {
|
|
background: gold;
|
|
&.mySpan {
|
|
color: black;
|
|
}
|
|
}
|
|
}`
|
|
);
|
|
|
|
is(
|
|
sheet.cssRules[0].cssRules[0].cssRules[0].cssText,
|
|
`&.mySpan { color: black; }`,
|
|
"Nested rule has expected text after updating the stylesheet"
|
|
);
|
|
|
|
info("Flush layout");
|
|
// This is important to reproduce the original issue
|
|
document.documentElement.getBoundingClientRect();
|
|
|
|
is(
|
|
getComputedStyle(spanEl).color,
|
|
"rgb(0, 0, 0)",
|
|
"the color of the span element was properly updated"
|
|
);
|
|
const rules = InspectorUtils.getMatchingCSSRules(spanEl);
|
|
is(
|
|
rules.length,
|
|
2,
|
|
"getMatchingCSSRules still returned 2 rules for .mySpan after stylesheet was updated"
|
|
);
|
|
is(rules[1].style.color, "black", "rule was properly updated");
|
|
});
|
|
</script>
|
|
</body>
|
|
</html>
|