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/DOM/AbstractRange.h

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
+ * Copyright (c) 2022, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/PlatformObject.h>
+#include <LibWeb/Forward.h>
+#include <LibWeb/WebIDL/Types.h>
+
+namespace Web::DOM {
+
+// https://dom.spec.whatwg.org/#abstractrange
+class AbstractRange : public Bindings::PlatformObject {
+    WEB_PLATFORM_OBJECT(AbstractRange, Bindings::PlatformObject);
+
+public:
+    virtual ~AbstractRange() override;
+
+    Node* start_container() { return m_start_container.ptr(); }
+    Node const* start_container() const { return m_start_container.ptr(); }
+    WebIDL::UnsignedLong start_offset() const { return m_start_offset; }
+
+    Node* end_container() { return m_end_container.ptr(); }
+    Node const* end_container() const { return m_end_container.ptr(); }
+    WebIDL::UnsignedLong end_offset() const { return m_end_offset; }
+
+    // https://dom.spec.whatwg.org/#range-collapsed
+    bool collapsed() const
+    {
+        // A range is collapsed if its start node is its end node and its start offset is its end offset.
+        return start_container() == end_container() && start_offset() == end_offset();
+    }
+
+protected:
+    AbstractRange(Node& start_container, WebIDL::UnsignedLong start_offset, Node& end_container, WebIDL::UnsignedLong end_offset);
+
+    virtual void initialize(JS::Realm&) override;
+    virtual void visit_edges(Cell::Visitor&) override;
+
+    JS::NonnullGCPtr<Node> m_start_container;
+    WebIDL::UnsignedLong m_start_offset;
+
+    JS::NonnullGCPtr<Node> m_end_container;
+    WebIDL::UnsignedLong m_end_offset;
+};
+
+}