65 lines
2.1 KiB
HTML
65 lines
2.1 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Changing content targetting :has-slotted(...) through a single shadow root</title>
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<link rel="help" href="https://github.com/w3c/csswg-drafts/pull/10586">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="/resources/testdriver.js"></script>
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<script src="/resources/testdriver-vendor.js"></script>
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<script src="/resources/testdriver-actions.js"></script>
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</head>
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<body>
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<div id="test">
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<template shadowrootmode="open">
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<slot></slot>
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<p id="target">This text will be styled.</p>
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<style>
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p {
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color: rgb(0 255 0);
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}
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slot:not(:has-slotted(span)) + p {
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color: rgb(0 0 255);
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}
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slot:not(:has-slotted(div)) + p {
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color: rgb(255 0 255);
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}
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</style>
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</template>
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</div>
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<script>
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const blue = 'rgb(0, 0, 255)';
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const green = 'rgb(0, 255, 0)';
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const fuchsia = 'rgb(255, 0, 255)';
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test(function () {
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const test = document.getElementById('test');
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const target = test.shadowRoot.getElementById('target');
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let styles = getComputedStyle(target);
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assert_equals(styles.getPropertyValue('color'), green);
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test.innerHTML = '<span></span>';
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styles = getComputedStyle(target);
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assert_equals(styles.getPropertyValue('color'), blue);
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test.textContent = '';
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styles = getComputedStyle(target);
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assert_equals(styles.getPropertyValue('color'), green);
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const div = document.createElement('div');
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test.replaceChild(div, test.firstElementChild);
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styles = getComputedStyle(target);
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assert_equals(styles.getPropertyValue('color'), fuchsia);
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const span = document.createElement('span');
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test.replaceChildren(span);
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styles = getComputedStyle(target);
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assert_equals(styles.getPropertyValue('color'), blue);
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test.replaceChildren();
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styles = getComputedStyle(target);
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assert_equals(styles.getPropertyValue('color'), green);
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});
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</script>
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</body>
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</html>
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