LibWeb: Don't deref HTMLInputElement parent if its null

Don't crash in case the elements parent is null.
Author: https://github.com/fahrradflucht Commit: https://github.com/SerenityOS/serenity/commit/ed1a7aee43 Pull-request: https://github.com/SerenityOS/serenity/pull/17917
2023-03-18 21:01:25 +01:00 · 2023-03-18 21:01:25 +01:00 · ed1a7aee43 · 2024-07-17 07:20:57 +09:00
commit ed1a7aee43
parent 245e3b9c3a
1 changed files with 5 additions and 3 deletions
--- a/Userland/Libraries/LibWeb/HTML/HTMLInputElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLInputElement.cpp
@ -88,9 +88,11 @@ void HTMLInputElement::set_checked(bool checked, ChangeSource change_source)

    // This element's :checked pseudo-class could be used in a sibling's sibling-selector,
    // so we need to invalidate the style of all siblings.
-    parent()->for_each_child([&](auto& child) {
-        child.invalidate_style();
-    });
+    if (parent()) {
+        parent()->for_each_child([&](auto& child) {
+            child.invalidate_style();
+        });
+    }
 }

 void HTMLInputElement::set_checked_binding(bool checked)