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/ScrollOptions.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2023, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/Bindings/WindowGlobalMixin.h>
+
+namespace Web::HTML {
+
+// https://w3c.github.io/csswg-drafts/cssom-view/#dictdef-scrolloptions
+struct ScrollOptions {
+    Bindings::ScrollBehavior behavior { Bindings::ScrollBehavior::Auto };
+};
+
+// https://drafts.csswg.org/cssom-view/#normalize-non-finite-values
+[[nodiscard]] inline double normalize_non_finite_values(double value)
+{
+    // When asked to normalize non-finite values for a value x, if x is one of the three special floating point
+    // literal values (Infinity, -Infinity or NaN), then x must be changed to the value 0. [WEBIDL]
+    if (isinf(value) || isnan(value))
+        return 0;
+
+    return value;
+}
+
+// https://drafts.csswg.org/cssom-view/#normalize-non-finite-values
+[[nodiscard]] inline double normalize_non_finite_values(Optional<double> const& value)
+{
+    if (!value.has_value())
+        return 0;
+    return normalize_non_finite_values(value.value());
+}
+
+}