Mason Freed
bf3fe9f099
Automatic update from web-platform-tests Fix absolute XPath queries failing in Shadow DOM Absolute XPath queries (starting with / or //) previously jumped to the owner document root even when evaluated on a node within a shadow tree. Since shadow DOM content is not reachable from the document root via standard light-tree traversal, these queries would fail to find elements. This change updates the root node resolution in LocationPath::Evaluate to treat the ShadowRoot as the root node when the evaluation context is within a shadow tree. A new runtime enabled feature, XPathShadowDOMSupport, is added to gate this behavior. Fixed: 440874372 Change-Id: I686c66b0ffe2b1ebc3493c3d0122024b79bad381 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7534177 Auto-Submit: Mason Freed <masonf@chromium.org> Commit-Queue: Joey Arhar <jarhar@chromium.org> Reviewed-by: Joey Arhar <jarhar@chromium.org> Cr-Commit-Position: refs/heads/main@{#1577039} -- wpt-commits: 24d22fd1a42b6ef60982f70f61cfe6b172ef5c09 wpt-pr: 57435
50 lines
1.9 KiB
HTML
50 lines
1.9 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<link rel="author" href="mailto:masonf@chromium.org">
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<link rel="help" href="https://crbug.com/440874372">
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<link rel="help" href="https://dom.spec.whatwg.org/#xpath">
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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="host">
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<template shadowrootmode="open">
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<span id="target"></span>
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</template>
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</div>
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<script>
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test(function() {
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const host = document.getElementById('host');
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const span = host.shadowRoot.getElementById('target');
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assert_true(!!span, "Span should exist in shadow DOM");
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// evaluate xpath after attaching to shadow
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const evaluator = new XPathEvaluator();
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const result = evaluator.evaluate('//span', span, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE);
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assert_equals(result.snapshotLength, 1, "Should find the span element");
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assert_equals(result.snapshotItem(0), span, "Should find the correct span element");
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}, "XPath //span should find element in Declarative Shadow DOM when evaluated on the element itself");
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test(function() {
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class MyCustomElement extends HTMLElement {
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connectedCallback(){
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const shadow = this.attachShadow({mode: 'open'});
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const span = document.createElement('span');
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shadow.appendChild(span);
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// evaluate xpath after attaching to shadow
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const evaluator = new XPathEvaluator();
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const result = evaluator.evaluate('//span', span, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE);
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assert_equals(result.snapshotLength, 1, "Should find the span element");
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assert_equals(result.snapshotItem(0), span, "Should find the correct span element");
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}
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}
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customElements.define('my-custom-element', MyCustomElement);
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const el = document.createElement('my-custom-element');
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document.body.appendChild(el);
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}, "XPath //span should find element in Imperative Shadow DOM when evaluated on the element itself");
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</script>
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