diff --git a/Tests/LibWeb/Text/expected/DOM/Elements-from-point.txt b/Tests/LibWeb/Text/expected/DOM/Elements-from-point.txt new file mode 100644 index 0000000000..1c947e52f4 --- /dev/null +++ b/Tests/LibWeb/Text/expected/DOM/Elements-from-point.txt @@ -0,0 +1,13 @@ + Negative coordinates return empty array: true +Coordinates outside the viewport return empty array: true +== Elements at (500, 10) == +
+ +== FIXME: Elements at (550, 60) == +
+
+
+
+
+
+
diff --git a/Tests/LibWeb/Text/input/DOM/Elements-from-point.html b/Tests/LibWeb/Text/input/DOM/Elements-from-point.html
new file mode 100644
index 0000000000..5a9b70960a
--- /dev/null
+++ b/Tests/LibWeb/Text/input/DOM/Elements-from-point.html
@@ -0,0 +1,46 @@
+
+
+
+

+
diff --git a/Userland/Libraries/LibWeb/DOM/Document.cpp b/Userland/Libraries/LibWeb/DOM/Document.cpp
index 0ca92769e3..3470eba8f5 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Document.cpp
@@ -3808,4 +3808,47 @@ Element const* Document::element_from_point(double x, double y)
     return nullptr;
 }
 
+// https://drafts.csswg.org/cssom-view/#dom-document-elementsfrompoint
+Vector> Document::elements_from_point(double x, double y)
+{
+    // 1. Let sequence be a new empty sequence.
+    Vector> sequence;
+
+    // 2. If either argument is negative, x is greater than the viewport width excluding the size of a rendered scroll bar (if any),
+    //    or y is greater than the viewport height excluding the size of a rendered scroll bar (if any),
+    //    or there is no viewport associated with the document, return sequence and terminate these steps.
+    auto viewport_rect = this->viewport_rect();
+    CSSPixelPoint position { x, y };
+    // FIXME: This should account for the size of the scroll bar.
+    if (x < 0 || y < 0 || position.x() > viewport_rect.width() || position.y() > viewport_rect.height())
+        return sequence;
+
+    // Ensure the layout tree exists prior to hit testing.
+    update_layout();
+
+    // 3. For each box in the viewport, in paint order, starting with the topmost box, that would be a target for
+    //    hit testing at coordinates x,y even if nothing would be overlapping it, when applying the transforms that
+    //    apply to the descendants of the viewport, append the associated element to sequence.
+    // FIXME: Paintable box tree order is not the same as paint order. We need a helper to traverse the paint tree in
+    //        paint order with a custom callback.
+    if (auto const* paintable_box = this->paintable_box(); paintable_box) {
+        paintable_box->for_each_in_inclusive_subtree_of_type([&](auto& paintable_box) {
+            if (auto result = paintable_box.hit_test(position, Painting::HitTestType::Exact); result.has_value()) {
+                if (auto* dom_node = result->dom_node(); dom_node && dom_node->is_element())
+                    sequence.append(*static_cast(dom_node));
+                return Painting::TraversalDecision::Continue;
+            }
+            return Painting::TraversalDecision::SkipChildrenAndContinue;
+        });
+    }
+
+    // 4. If the document has a root element, and the last item in sequence is not the root element,
+    //    append the root element to sequence.
+    if (auto* root_element = document_element(); root_element && (sequence.is_empty() || (sequence.last() != root_element)))
+        sequence.append(*root_element);
+
+    // 5. Return sequence.
+    return sequence;
+}
+
 }
diff --git a/Userland/Libraries/LibWeb/DOM/Document.h b/Userland/Libraries/LibWeb/DOM/Document.h
index d86f7f9dfd..67b10b10a7 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.h
+++ b/Userland/Libraries/LibWeb/DOM/Document.h
@@ -567,6 +567,7 @@ public:
     WebIDL::ExceptionOr set_design_mode(String const&);
 
     Element const* element_from_point(double x, double y);
+    Vector> elements_from_point(double x, double y);
 
     void set_needs_to_resolve_paint_only_properties() { m_needs_to_resolve_paint_only_properties = true; }
 
diff --git a/Userland/Libraries/LibWeb/DOM/Document.idl b/Userland/Libraries/LibWeb/DOM/Document.idl
index 7a0e7483ef..c89e48ef3c 100644
--- a/Userland/Libraries/LibWeb/DOM/Document.idl
+++ b/Userland/Libraries/LibWeb/DOM/Document.idl
@@ -121,6 +121,7 @@ interface Document : Node {
 
     // https://drafts.csswg.org/cssom-view/#extensions-to-the-document-interface
     Element? elementFromPoint(double x, double y);
+    sequence elementsFromPoint(double x, double y);
 };
 
 dictionary ElementCreationOptions {