LibWeb/HTML: Update spec text related to template's content

Corresponds to:
whatwg/html@aa52274

Author: AtkinsSJ

Libraries/LibWeb/DOM/Document.cpp

@@ -4499,15 +4499,16 @@ void Document::decrement_throw_on_dynamic_markup_insertion_counter(Badge<HTML::H
 // https://html.spec.whatwg.org/multipage/scripting.html#appropriate-template-contents-owner-document
 GC::Ref<DOM::Document> Document::appropriate_template_contents_owner_document()
 {
-    // 1. If doc is not a Document created by this algorithm, then:
+    // 1. If document is not a Document created by this algorithm:
     if (!created_for_appropriate_template_contents()) {
-        // 1. If doc does not yet have an associated inert template document, then:
+        // 1. If document does not yet have an associated inert template document:
         if (!m_associated_inert_template_document) {
-            // 1. Let new doc be a new Document (whose browsing context is null). This is "a Document created by this algorithm" for the purposes of the step above.
+            // 1. Let newDocument be a new Document (whose browsing context is null). This is "a Document created by
+            //    this algorithm" for the purposes of the step above.
             auto new_document = HTML::HTMLDocument::create(realm());
             new_document->m_created_for_appropriate_template_contents = true;
 
-            // 2. If doc is an HTML document, mark new doc as an HTML document also.
+            // 2. If document is an HTML document, then mark newDocument as an HTML document also.
             if (document_type() == Type::HTML)
                 new_document->set_document_type(Type::HTML);
 
@@ -4516,13 +4517,13 @@ GC::Ref<DOM::Document> Document::appropriate_template_contents_owner_document()
             // Spec issue: https://github.com/whatwg/html/issues/11955
             new_document->set_allow_declarative_shadow_roots(allow_declarative_shadow_roots());
 
-            // 3. Set doc's associated inert template document to new doc.
+            // 3. Set document's associated inert template document to newDocument.
             m_associated_inert_template_document = new_document;
         }
-        // 2. Set doc to doc's associated inert template document.
+        // 2. Set document to document's associated inert template document.
         return *m_associated_inert_template_document;
     }
-    // 2. Return doc.
+    // 2. Return document.
     return *this;
 }
 

Libraries/LibWeb/HTML/HTMLTemplateElement.cpp

@@ -25,8 +25,17 @@ void HTMLTemplateElement::initialize(JS::Realm& realm)
     WEB_SET_PROTOTYPE_FOR_INTERFACE(HTMLTemplateElement);
     Base::initialize(realm);
 
-    m_content = realm.create<DOM::DocumentFragment>(m_document->appropriate_template_contents_owner_document());
-    m_content->set_host(this);
+    // https://html.spec.whatwg.org/multipage/scripting.html#template-contents
+    // When a template element is created, the user agent must run the following steps to establish the template contents:
+    // 1. Let document be the template element's node document's appropriate template contents owner document.
+    auto document = m_document->appropriate_template_contents_owner_document();
+
+    // 2. Create a DocumentFragment object whose node document is document and host is the template element.
+    auto document_fragment = realm.create<DOM::DocumentFragment>(document);
+    document_fragment->set_host(this);
+
+    // 3. Set the template element's template contents to the newly created DocumentFragment object.
+    m_content = document_fragment;
 }
 
 void HTMLTemplateElement::visit_edges(Cell::Visitor& visitor)
@@ -38,11 +47,11 @@ void HTMLTemplateElement::visit_edges(Cell::Visitor& visitor)
 // https://html.spec.whatwg.org/multipage/scripting.html#the-template-element:concept-node-adopt-ext
 void HTMLTemplateElement::adopted_from(DOM::Document&)
 {
-    // 1. Let doc be node's node document's appropriate template contents owner document.
-    auto doc = document().appropriate_template_contents_owner_document();
+    // 1. Let document be node's node document's appropriate template contents owner document.
+    auto document = this->document().appropriate_template_contents_owner_document();
 
-    // 2. Adopt node's template contents (a DocumentFragment object) into doc.
-    doc->adopt_node(content());
+    // 2. Adopt node's template contents (a DocumentFragment object) into document.
+    document->adopt_node(content());
 }
 
 // https://html.spec.whatwg.org/multipage/scripting.html#the-template-element:concept-node-clone-ext

Libraries/LibWeb/HTML/Parser/HTMLParser.cpp

@@ -1263,7 +1263,7 @@ void HTMLParser::handle_in_head(HTMLToken& token)
                 // 4. Set shadow's declarative to true.
                 shadow.set_declarative(true);
 
-                // 5. Set template's template contents property to shadow.
+                // 5. Set template's template contents to shadow.
                 as<HTMLTemplateElement>(*template_).set_template_contents(shadow);
 
                 // 6. Set shadow's available to element internals to true.