Bug 1860834 [wpt PR 42717] - Give <slot> element default unicode-bidi…

…: isolate style., a=testonly Automatic update from web-platform-tests Give <slot> element default unicode-bidi: isolate style. This is behind the RuntimeEnabledFeatures::CSSPseudoDirEnabled() flag. This implements a part of the behavior described in: whatwg/html#3699 (comment) which has been specified in: whatwg/html#9554 whatwg/html#9796 Bug: 576815 Change-Id: Ice471838c7251fc69d87abfa723f3eef1a4c455a Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4800075 Reviewed-by: Chris Harrelson <chrishtrchromium.org> Reviewed-by: Di Zhang <dizhanggchromium.org> Commit-Queue: David Baron <dbaronchromium.org> Cr-Commit-Position: refs/heads/main{#1214439} -- wpt-commits: a79306e06659bde55be85c3af5c1d7d4a51c0cbd wpt-pr: 42717 UltraBlame original commit: c1d0594b7c2341b1247e69987405d8038e57308b
marco-c · Nov 8, 2023 · 3698923 · 3698923
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diff --git a/testing/web-platform/tests/html/rendering/bidi-rendering/slot-isolate-001-ref.html b/testing/web-platform/tests/html/rendering/bidi-rendering/slot-isolate-001-ref.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<title>HTML Rendering: slot element has unicode-bidi: isolate</title>
+<link rel="author" title="L. David Baron" href="https://dbaron.org/">
+<link rel="author" title="Google" href="http://www.google.com/">
+
+<div style="unicode-bidi: bidi-override; direction: ltr;">&#x5D0;-&#x5D1;</div>
+
+<div>isolate</div>
diff --git a/testing/web-platform/tests/html/rendering/bidi-rendering/slot-isolate-001.html b/testing/web-platform/tests/html/rendering/bidi-rendering/slot-isolate-001.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<title>HTML Rendering: slot element has unicode-bidi: isolate</title>
+<link rel="author" title="L. David Baron" href="https://dbaron.org/">
+<link rel="author" title="Google" href="http://www.google.com/">
+<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#bidi-rendering">
+<link rel="help" href="https://github.com/whatwg/html/pull/9796">
+<link rel="match" href="slot-isolate-001-ref.html">
+
+<div>&#x5D0;-<span id="e">&#x5D1;</span></div>
+
+<div id="v"></div>
+
+<script>
+
+let e = document.getElementById("e");
+let root = e.attachShadow({mode: "open"});
+// use display:inline to override default display:contents
+root.innerHTML = "<slot style='display:inline'>\u05D2</slot>";
+let val = getComputedStyle(root.querySelector("slot")).unicodeBidi;
+document.getElementById("v").innerText = val;
+
+</script>