LibWeb: Implement CSSImportRule.supportsText

Returns the supports condition specified by the given import at-rule.
Author: https://github.com/tcl3 Commit: 5d57723ebf Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/4001 Reviewed-by: https://github.com/AtkinsSJ Reviewed-by: https://github.com/gmta ✅
2025-08-25 19:56:30 +00:00 · 2025-03-19 11:32:34 +00:00 · 2025-03-19 11:32:34 +00:00 · 5d57723ebf · 2025-03-19 15:43:53 +00:00
commit 5d57723ebf
parent c37a47f76f
7 changed files with 35 additions and 3 deletions
--- a/Tests/LibWeb/Text/input/css/CSSImportRule-supportsText.html
+++ b/Tests/LibWeb/Text/input/css/CSSImportRule-supportsText.html
@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<style>
+    @import url("https://something.invalid") supports(foo: bar);
+    @import url("https://something.invalid") supports((display: block) and (foo: bar));
+</style>
+<script src="../include.js"></script>
+<script>
+    test(() => {
+        function printImportRule(importRule) {
+            println(`cssText: ${importRule.cssText}`);
+            println(`supportsText: ${importRule.supportsText}`);
+        }
+
+        printImportRule(document.styleSheets[0].cssRules[0]);
+        printImportRule(document.styleSheets[0].cssRules[1]);
+    });
+</script>