Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/HTML/HTMLTemplateElement.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/DOM/DocumentFragment.h>
+#include <LibWeb/HTML/HTMLElement.h>
+
+namespace Web::HTML {
+
+class HTMLTemplateElement final : public HTMLElement {
+    WEB_PLATFORM_OBJECT(HTMLTemplateElement, HTMLElement);
+    JS_DECLARE_ALLOCATOR(HTMLTemplateElement);
+
+public:
+    virtual ~HTMLTemplateElement() override;
+
+    JS::NonnullGCPtr<DOM::DocumentFragment> content() { return *m_content; }
+    JS::NonnullGCPtr<DOM::DocumentFragment> const content() const { return *m_content; }
+
+    void set_template_contents(JS::NonnullGCPtr<DOM::DocumentFragment>);
+
+    virtual void adopted_from(DOM::Document&) override;
+    virtual WebIDL::ExceptionOr<void> cloned(Node& copy, bool clone_children) override;
+
+private:
+    HTMLTemplateElement(DOM::Document&, DOM::QualifiedName);
+
+    virtual bool is_html_template_element() const final { return true; }
+
+    virtual void initialize(JS::Realm&) override;
+    virtual void visit_edges(Cell::Visitor&) override;
+
+    JS::GCPtr<DOM::DocumentFragment> m_content;
+};
+
+}
+
+namespace Web::DOM {
+template<>
+inline bool Node::fast_is<HTML::HTMLTemplateElement>() const { return is_html_template_element(); }
+}