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.cpp

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2020, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/Bindings/HTMLTemplateElementPrototype.h>
+#include <LibWeb/Bindings/MainThreadVM.h>
+#include <LibWeb/DOM/Document.h>
+#include <LibWeb/HTML/HTMLTemplateElement.h>
+
+namespace Web::HTML {
+
+JS_DEFINE_ALLOCATOR(HTMLTemplateElement);
+
+HTMLTemplateElement::HTMLTemplateElement(DOM::Document& document, DOM::QualifiedName qualified_name)
+    : HTMLElement(document, move(qualified_name))
+{
+}
+
+HTMLTemplateElement::~HTMLTemplateElement() = default;
+
+void HTMLTemplateElement::initialize(JS::Realm& realm)
+{
+    Base::initialize(realm);
+    WEB_SET_PROTOTYPE_FOR_INTERFACE(HTMLTemplateElement);
+
+    m_content = heap().allocate<DOM::DocumentFragment>(realm, m_document->appropriate_template_contents_owner_document());
+    m_content->set_host(this);
+}
+
+void HTMLTemplateElement::visit_edges(Cell::Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    visitor.visit(m_content);
+}
+
+// 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();
+
+    // 2. Adopt node's template contents (a DocumentFragment object) into doc.
+    doc->adopt_node(content());
+}
+
+// https://html.spec.whatwg.org/multipage/scripting.html#the-template-element:concept-node-clone-ext
+WebIDL::ExceptionOr<void> HTMLTemplateElement::cloned(Node& copy, bool clone_children)
+{
+    // 1. If the clone children flag is not set in the calling clone algorithm, return.
+    if (!clone_children)
+        return {};
+
+    // 2. Let copied contents be the result of cloning all the children of node's template contents,
+    //    with document set to copy's template contents's node document, and with the clone children flag set.
+    // 3. Append copied contents to copy's template contents.
+    auto& template_clone = verify_cast<HTMLTemplateElement>(copy);
+    for (auto child = content()->first_child(); child; child = child->next_sibling()) {
+        auto cloned_child = TRY(child->clone_node(&template_clone.content()->document(), true));
+        TRY(template_clone.content()->append_child(cloned_child));
+    }
+    return {};
+}
+
+void HTMLTemplateElement::set_template_contents(JS::NonnullGCPtr<DOM::DocumentFragment> contents)
+{
+    m_content = contents;
+}
+
+}