Implement StyleVariables::operator=

StyleInheritedVariables uses the assignment operator, but it's not implemented correctly. Fixed: 1238686 Change-Id: I2cc41d9ddf5b9959a21671f80702a76cec556ed8 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3086699 Reviewed-by: Rune Lillesveen <futhark@chromium.org> Commit-Queue: Anders Hartvoll Ruud <andruud@chromium.org> Cr-Commit-Position: refs/heads/master@{#910876}
web-platform-tests · Aug 11, 2021 · c5776ea · c5776ea
1 parent 1bce3fa
commit c5776ea
Showing 1 changed file with 43 additions and 0 deletions.
diff --git a/css/css-properties-values-api/registered-property-crosstalk.html b/css/css-properties-values-api/registered-property-crosstalk.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<link rel="help" href="https://drafts.css-houdini.org/css-properties-values-api-1" />
+<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1238686" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+
+  @property --x {
+    syntax: "<number>";
+    inherits: true;
+    initial-value: 0;
+  }
+
+  #a {
+    --y: 0;
+  }
+
+  #b {
+    --z: 0;
+  }
+
+  #c {
+    --x: 42;
+  }
+
+</style>
+
+<div id=a>
+  <div id=b>
+    <div id=c>
+    </div>
+  </div>
+</div>
+
+<script>
+
+test(function(){
+  assert_equals(getComputedStyle(a).getPropertyValue('--x'), '0');
+  assert_equals(getComputedStyle(b).getPropertyValue('--x'), '0');
+  assert_equals(getComputedStyle(c).getPropertyValue('--x'), '42');
+}, 'Only #c should be affected by --x:42');
+
+</script>