53 lines
3.3 KiB
HTML
53 lines
3.3 KiB
HTML
<!doctype html>
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<meta charset="utf-8" />
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<title>:has-slotted and query-selector</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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<div id="ancestor"><template shadowrootmode="open"><div id="host"><template shadowrootmode="open"><style>
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slot {
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color: rgb(0, 0, 0);
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}
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:has-slotted {
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color: rgb(0, 255, 0);
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}
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</style><slot></slot></template><slot></slot></div></template></div>
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<script>
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const host = ancestor.shadowRoot.querySelector('#host');
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for(const container of [host, ancestor]) {
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host.replaceChildren(document.createElement('slot'));
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ancestor.replaceChildren();
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const slot = host.shadowRoot.querySelector("slot");
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test(function () {
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assert_equals(slot.assignedNodes({flatten: true}).length, 0, "slot should have 0 nodes");
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assert_false(slot.matches(":has-slotted"), "slot element should not match :has-slotted");
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assert_equals(getComputedStyle(slot).color, "rgb(0, 0, 0)", "slot element should not match :has-slotted");
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assert_equals(host.shadowRoot.querySelectorAll(":has-slotted").length, 0, "slot element should not match :has-slotted");
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}, ":has-slotted does not match or querySelector when there are no assigned nodes" + (container == ancestor ? " (flattened)" : ""));
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test(function () {
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container.append(document.createElement("div"));
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assert_equals(slot.assignedNodes({flatten: true}).length, 1, "slot should have 1 node");
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assert_true(slot.matches(":has-slotted"), "slot element should match :has-slotted with 1 child node");
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assert_equals(getComputedStyle(slot).color, "rgb(0, 255, 0)", "slot element should match :has-slotted with 1 child node");
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assert_equals(host.shadowRoot.querySelectorAll(":has-slotted").length, 1, "slot element should match :has-slotted with 1 child node");
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}, ":has-slotted must match/querySelector when an element is assigned" + (container == ancestor ? " (flattened)" : ""));
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test(function () {
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container.replaceChildren();
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assert_equals(slot.assignedNodes({flatten: true}).length, 0, "slot should have 0 nodes");
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assert_false(slot.matches(":has-slotted"), "slot element should not match :has-slotted after empty");
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assert_equals(getComputedStyle(slot).color, "rgb(0, 0, 0)", "slot element should not match :has-slotted after empty");
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assert_equals(host.shadowRoot.querySelectorAll(":has-slotted").length, 0, "slot element should not match :has-slotted after empty");
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}, ":has-slotted does not when child nodes are replaced" + (container == ancestor ? " (flattened)" : ""));
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test(function () {
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container.append(document.createTextNode(""));
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assert_equals(slot.assignedNodes({flatten: true}).length, 1, "slot should have 1 node");
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assert_true(slot.matches(":has-slotted"), "slot element should match :has-slotted with 1 text node");
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assert_equals(getComputedStyle(slot).color, "rgb(0, 255, 0)", "slot element should match :has-slotted with 1 text node");
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assert_equals(host.shadowRoot.querySelectorAll(":has-slotted").length, 1, "slot element should match :has-slotted with 1 text node");
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}, ":has-slotted must match/querySelector when a text node is assigned" + (container == ancestor ? " (flattened)" : ""));
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}
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</script>
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