Bug 1835033 [wpt PR 40220] - [@container] Inheritance propagation lost at style query change, a=testonly

lilles · moz-wptsync-bot · commit bfb16dbb73e3 · 2023-06-13T07:14:19.000Z
Automatic update from web-platform-tests [@container] Inheritance propagation lost at style query change Based modified the StyleRecalcChange on style query evaluation changes instead of the child_change that captured the change from RecalcOwnStyle. Base on child_change instead. Bug: 1445876 Change-Id: I2e064b03c2ef3f823cc51a7f733bf04ab2574b59 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4565675 Commit-Queue: Rune Lillesveen <futhark@chromium.org> Reviewed-by: Anders Hartvoll Ruud <andruud@chromium.org> Cr-Commit-Position: refs/heads/main@{#1149034} -- wpt-commits: 414a38ccc898aa9bb3b7317f35702350f7892460 wpt-pr: 40220
diff --git a/testing/web-platform/tests/css/css-contain/container-queries/style-container-invalidation-inheritance.html b/testing/web-platform/tests/css/css-contain/container-queries/style-container-invalidation-inheritance.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<title>CSS Container Query Test: named style container query change with inherited custom property</title>
+<link rel="help" href="https://drafts.csswg.org/css-contain-3/#container-rule">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support/cq-testcommon.js"></script>
+<style>
+  #container {
+    container-name: container;
+  }
+  .match {
+    --match: true;
+  }
+  #inner {
+    color: red;
+  }
+  @container container style(--match: true) {
+    #inner {
+      color: green;
+    }
+  }
+</style>
+<div id="container">
+  <div id="outer">
+    <div id="inner"></div>
+  </div>
+</div>
+<script>
+  setup(() => assert_implements_container_queries());
+
+  test(() => {
+    assert_equals(getComputedStyle(inner).color, "rgb(255, 0, 0)");
+    assert_equals(getComputedStyle(inner).getPropertyValue("--match"), "");
+    assert_equals(getComputedStyle(outer).getPropertyValue("--match"), "");
+    assert_equals(getComputedStyle(container).getPropertyValue("--match"), "");
+  }, "Pre-conditions");
+
+  test(() => {
+    container.className = "match";
+    assert_equals(getComputedStyle(inner).color, "rgb(0, 128, 0)");
+    assert_equals(getComputedStyle(inner).getPropertyValue("--match"), "true");
+    assert_equals(getComputedStyle(outer).getPropertyValue("--match"), "true");
+    assert_equals(getComputedStyle(container).getPropertyValue("--match"), "true");
+  }, "Changed --match inherits down descendants and affects container query");
+</script>
