74 lines
2.3 KiB
HTML
74 lines
2.3 KiB
HTML
<!doctype html>
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8" />
|
|
<meta name="timeout" content="long" />
|
|
<meta
|
|
name="author"
|
|
title="Keith Cirkel"
|
|
href="mailto:wpt@keithcirkel.co.uk"
|
|
/>
|
|
<link rel="help" href="https://html.spec.whatwg.org/multipage/custom-elements.html#custom-state-pseudo-class" />
|
|
<title>:state() css selector applies in shadow roots</title>
|
|
|
|
<script src="/resources/testharness.js"></script>
|
|
<script src="/resources/testharnessreport.js"></script>
|
|
</head>
|
|
<body>
|
|
<custom-state id="myCE"> I should be green </custom-state>
|
|
<style></style>
|
|
<script>
|
|
customElements.define(
|
|
"custom-state",
|
|
class extends HTMLElement {
|
|
connectedCallback() {
|
|
this.elementInternals = this.attachInternals();
|
|
const css = new CSSStyleSheet();
|
|
css.replaceSync(`
|
|
:host {
|
|
color: #f00;
|
|
}
|
|
:host(:state(green)) {
|
|
color: #0f0;
|
|
}
|
|
`);
|
|
this.attachShadow({ mode: "open" }).adoptedStyleSheets.push(css);
|
|
}
|
|
},
|
|
);
|
|
|
|
test(function () {
|
|
assert_false(myCE.elementInternals.states.has("green"));
|
|
assert_equals(
|
|
getComputedStyle(myCE).getPropertyValue("color"),
|
|
"rgb(255, 0, 0)",
|
|
);
|
|
}, "state selector has no influence when state is not applied");
|
|
|
|
test(function (t) {
|
|
myCE.elementInternals.states.add("green");
|
|
t.add_cleanup(() => {
|
|
myCE.elementInternals.states.delete("green");
|
|
});
|
|
assert_true(myCE.elementInternals.states.has("green"));
|
|
assert_equals(
|
|
getComputedStyle(myCE).getPropertyValue("color"),
|
|
"rgb(0, 255, 0)",
|
|
);
|
|
}, "state selector has influence when state is applied");
|
|
|
|
test(function (t) {
|
|
myCE.elementInternals.states.add("foo");
|
|
t.add_cleanup(() => {
|
|
myCE.elementInternals.states.delete("foo");
|
|
});
|
|
assert_false(myCE.elementInternals.states.has("green"));
|
|
assert_true(myCE.elementInternals.states.has("foo"));
|
|
assert_equals(
|
|
getComputedStyle(myCE).getPropertyValue("color"),
|
|
"rgb(255, 0, 0)",
|
|
);
|
|
}, "state selector only applies on given ident");
|
|
</script>
|
|
</body>
|
|
</html>
|