LibWeb: Add createDocument and createDocumentType for DOMImplementation

Both required for the acid3 test.
createDocument is used extensively in Web Platform Tests.

1 files changed, 44 insertions, 1 deletions

diff --git a/Userland/Libraries/LibWeb/DOM/DOMImplementation.cpp b/Userland/Libraries/LibWeb/DOM/DOMImplementation.cpp
index 04493eda8b..1b46a0d5f6 100644
--- a/Userland/Libraries/LibWeb/DOM/DOMImplementation.cpp
+++ b/Userland/Libraries/LibWeb/DOM/DOMImplementation.cpp
@@ -19,8 +19,40 @@ DOMImplementation::DOMImplementation(Document& document)
 {
 }
 
-const NonnullRefPtr<Document> DOMImplementation::create_html_document(const String& title) const
+// https://dom.spec.whatwg.org/#dom-domimplementation-createdocument
+NonnullRefPtr<Document> DOMImplementation::create_document(const String& namespace_, const String& qualified_name) const
 {
+    // FIXME: This should specifically be an XML document.
+    auto xml_document = Document::create();
+
+    xml_document->set_ready_for_post_load_tasks(true);
+
+    RefPtr<Element> element;
+
+    if (!qualified_name.is_empty())
+        element = xml_document->create_element_ns(namespace_, qualified_name /* FIXME: and an empty dictionary */);
+
+    // FIXME: If doctype is non-null, append doctype to document.
+
+    if (element)
+        xml_document->append_child(element.release_nonnull());
+
+    xml_document->set_origin(m_document.origin());
+
+    if (namespace_ == Namespace::HTML)
+        m_document.set_content_type("application/xhtml+xml");
+    else if (namespace_ == Namespace::SVG)
+        m_document.set_content_type("image/svg+xml");
+    else
+        m_document.set_content_type("application/xml");
+
+    return xml_document;
+}
+
+// https://dom.spec.whatwg.org/#dom-domimplementation-createhtmldocument
+NonnullRefPtr<Document> DOMImplementation::create_html_document(const String& title) const
+{
+    // FIXME: This should specifically be a HTML document.
     auto html_document = Document::create();
 
     html_document->set_content_type("text/html");
@@ -52,4 +84,15 @@ const NonnullRefPtr<Document> DOMImplementation::create_html_document(const Stri
     return html_document;
 }
 
+// https://dom.spec.whatwg.org/#dom-domimplementation-createdocumenttype
+NonnullRefPtr<DocumentType> DOMImplementation::create_document_type(const String& qualified_name, const String& public_id, const String& system_id) const
+{
+    // FIXME: Validate qualified_name.
+    auto document_type = DocumentType::create(m_document);
+    document_type->set_name(qualified_name);
+    document_type->set_public_id(public_id);
+    document_type->set_system_id(system_id);
+    return document_type;
+}
+
 }