LibWeb: Add HTMLTableSectionElement.rows and HTMLTableRowElement.cells

1% progression on ACID3. :^)

1 files changed, 16 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.cpp b/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.cpp
index 22698165c8..0e08d6f8f6 100644
--- a/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.cpp
+++ b/Userland/Libraries/LibWeb/HTML/HTMLTableSectionElement.cpp
@@ -1,9 +1,12 @@
 /*
  * Copyright (c) 2020, the SerenityOS developers.
+ * Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
+#include <LibWeb/DOM/HTMLCollection.h>
+#include <LibWeb/HTML/HTMLTableRowElement.h>
 #include <LibWeb/HTML/HTMLTableSectionElement.h>
 
 namespace Web::HTML {
@@ -17,4 +20,17 @@ HTMLTableSectionElement::~HTMLTableSectionElement()
 {
 }
 
+// https://html.spec.whatwg.org/multipage/tables.html#dom-tbody-rows
+NonnullRefPtr<DOM::HTMLCollection> HTMLTableSectionElement::rows() const
+{
+    // The rows attribute must return an HTMLCollection rooted at this element,
+    // whose filter matches only tr elements that are children of this element.
+    // FIXME: This should return the same HTMLCollection object every time,
+    //        but that would cause a reference cycle since HTMLCollection refs the root.
+    return DOM::HTMLCollection::create(const_cast<HTMLTableSectionElement&>(*this), [this](Element const& element) {
+        return element.parent() == this
+            && is<HTMLTableRowElement>(element);
+    });
+}
+
 }