From 540c3070092b0c7572b09e3d2a9834c273446686 Mon Sep 17 00:00:00 2001
From: Luke Wilde <lukew@serenityos.org>
Date: Sat, 1 Oct 2022 00:30:38 +0100
Subject: [PATCH] LibWeb: Implement Element.insertAdjacentText

---
 Userland/Libraries/LibWeb/DOM/Element.cpp | 12 ++++++++++++
 Userland/Libraries/LibWeb/DOM/Element.h   |  1 +
 Userland/Libraries/LibWeb/DOM/Element.idl |  1 +
 3 files changed, 14 insertions(+)

diff --git a/Userland/Libraries/LibWeb/DOM/Element.cpp b/Userland/Libraries/LibWeb/DOM/Element.cpp
index 47a8e18b481..686c73253cd 100644
--- a/Userland/Libraries/LibWeb/DOM/Element.cpp
+++ b/Userland/Libraries/LibWeb/DOM/Element.cpp
@@ -891,4 +891,16 @@ WebIDL::ExceptionOr<JS::GCPtr<Element>> Element::insert_adjacent_element(String
     return JS::GCPtr<Element> { verify_cast<Element>(*returned_node) };
 }
 
+// https://dom.spec.whatwg.org/#dom-element-insertadjacenttext
+WebIDL::ExceptionOr<void> Element::insert_adjacent_text(String const& where, String const& data)
+{
+    // 1. Let text be a new Text node whose data is data and node document is this’s node document.
+    JS::NonnullGCPtr<Text> text = *heap().allocate<DOM::Text>(realm(), document(), data);
+
+    // 2. Run insert adjacent, given this, where, and text.
+    // Spec Note: This method returns nothing because it existed before we had a chance to design it.
+    (void)TRY(insert_adjacent(where, move(text)));
+    return {};
+}
+
 }
diff --git a/Userland/Libraries/LibWeb/DOM/Element.h b/Userland/Libraries/LibWeb/DOM/Element.h
index 08e4b42bc98..a315e310368 100644
--- a/Userland/Libraries/LibWeb/DOM/Element.h
+++ b/Userland/Libraries/LibWeb/DOM/Element.h
@@ -145,6 +145,7 @@ public:
     bool is_actually_disabled() const;
 
     WebIDL::ExceptionOr<JS::GCPtr<Element>> insert_adjacent_element(String const& where, JS::NonnullGCPtr<Element> element);
+    WebIDL::ExceptionOr<void> insert_adjacent_text(String const& where, String const& data);
 
 protected:
     Element(Document&, DOM::QualifiedName);
diff --git a/Userland/Libraries/LibWeb/DOM/Element.idl b/Userland/Libraries/LibWeb/DOM/Element.idl
index 6b514f6173e..3bc26ce7040 100644
--- a/Userland/Libraries/LibWeb/DOM/Element.idl
+++ b/Userland/Libraries/LibWeb/DOM/Element.idl
@@ -54,6 +54,7 @@ interface Element : Node {
     readonly attribute long clientHeight;
 
     [CEReactions] Element? insertAdjacentElement(DOMString where, Element element);
+    undefined insertAdjacentText(DOMString where, DOMString data);
     [CEReactions] undefined insertAdjacentHTML(DOMString position, DOMString text);
 };