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<!doctype html>
<title>::part():disabled grouping</title>
<link rel="help" href="https://drafts.csswg.org/css-shadow-parts/">
<style>
my-element::part(button) {
font-family: fantasy;
background-color: #ff0000;
}
#grouped {
color: #ff0000;
}
my-element::part(button):disabled {
background-color: #00ff00;
}
my-element::part(button):disabled,
#grouped {
color: #00ff00;
}
my-element::part(not-a-part):disabled,
#grouped {
font-family: monospace;
}
</style>
<body>
<my-element id="subject"></my-element>
<p id="grouped">Text</p>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script>
const RED = "rgb(255, 0, 0)";
const GREEN = "rgb(0, 255, 0)";
customElements.define(
"my-element",
class MyElement extends HTMLElement {
connectedCallback() {
this.attachShadow({
mode: "open",
}).innerHTML = `
<button part="button" disabled>Test</button>
`;
this.elementInternals = this.attachInternals();
}
get inner() {
return this.shadowRoot.querySelector("[part=button]");
}
},
);
test(() => {
assert_equals(getComputedStyle(subject.inner).fontFamily, 'fantasy');
}, "Styles applied to ::part(...)");
test(() => {
assert_equals(getComputedStyle(subject.inner).backgroundColor, GREEN);
}, "Styles applied to ::part(...):disabled");
test(() => {
assert_equals(getComputedStyle(subject.inner).color, GREEN);
assert_equals(getComputedStyle(grouped).color, GREEN);
}, "Styles applied via grouped selector including matched ::part(...):disabled");
test(() => {
assert_equals(getComputedStyle(grouped).fontFamily, 'monospace');
}, "Styles applied via grouped selector including unmatched ::part(...):disabled");
</script>
</body>
|
