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|
<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1037519
-->
<head>
<title>Test for CSSStyleRule::selectorMatchesElement</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
<style type="text/css">
#foo,
#bar,
#foo::before {
color: red;
}
#foo {
div& {
outline: 1px solid gold;
}
}
#foo::before,
#bar::before {
content: 'foo-before';
color: green;
}
#foo::after,
#bar::after {
content: 'foo-after';
color: blue;
}
#foo::first-line,
#bar::first-line {
text-decoration: underline;
}
#foo::first-letter,
#bar::first-letter {
font-variant: small-caps;
}
::view-transition-group(root), #bar, ::view-transition-group(*) {
animation-duration: 3600s;
}
</style>
</head>
<body>
<div id="foo">foo content</div>
<script>
const InspectorUtils = SpecialPowers.InspectorUtils;
add_task(async () => {
const element = document.querySelector("#foo");
const elementRules = InspectorUtils.getMatchingCSSRules(element);
const multiSelectorRule = elementRules[2];
is(
multiSelectorRule.selectorText,
`#foo, #bar, #foo::before`,
"Got expected multi-selector rule"
);
ok(
multiSelectorRule.selectorMatchesElement(0, element),
"Matches #foo"
);
ok(
!multiSelectorRule.selectorMatchesElement(1, element),
"Doesn't match #bar"
);
ok(
!multiSelectorRule.selectorMatchesElement(0, element, ":bogus"),
"Doesn't match #foo with a bogus pseudo"
);
ok(
!multiSelectorRule.selectorMatchesElement(2, element, ":bogus"),
"Doesn't match #foo::before with bogus pseudo"
);
ok(
!multiSelectorRule.selectorMatchesElement(0, element, ":after"),
"Does match #foo::before with the :after pseudo"
);
const nestedRule = elementRules[4];
is(nestedRule.selectorText, `div&`, "Got expected nested rule");
ok(nestedRule.selectorMatchesElement(0, element), "Matches div&");
checkPseudo(":before");
checkPseudo(":after");
checkPseudo(":first-letter");
checkPseudo(":first-line");
function checkPseudo(pseudo) {
const rule = InspectorUtils.getMatchingCSSRules(element, pseudo).at(-1);
ok(
!rule.selectorMatchesElement(0, element),
"Doesn't match without " + pseudo
);
ok(
!rule.selectorMatchesElement(1, element),
"Doesn't match without " + pseudo
);
ok(
rule.selectorMatchesElement(0, element, pseudo),
"Matches on #foo" + pseudo
);
ok(
!rule.selectorMatchesElement(1, element, pseudo),
"Doesn't match on #bar" + pseudo
);
}
info("Create a view transition");
const transition = document.startViewTransition(() => {
element.replaceChildren("updated foo content");
});
await transition.ready;
await transition.updateCallbackDone;
const viewTransitionGroupRule = InspectorUtils.getMatchingCSSRules(
document.documentElement,
"::view-transition-group(root)"
).find(rule => {
try {
return rule.selectorText === "::view-transition-group(root), #bar, ::view-transition-group(*)";
} catch {}
return false;
});
ok(
!!viewTransitionGroupRule,
"Got the expected ::view-transition-group rule"
);
ok(
viewTransitionGroupRule.selectorMatchesElement(
0,
document.documentElement,
"::view-transition-group(root)"
),
"Matches ::view-transition-group(root)"
);
ok(
!viewTransitionGroupRule.selectorMatchesElement(1, document.documentElement),
"Doesn't match #bar"
);
ok(
viewTransitionGroupRule.selectorMatchesElement(
2,
document.documentElement,
"::view-transition-group(root)"
),
"Matches ::view-transition-group(*)"
);
});
</script>
</body>
</html>
|
