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/CSS/Angle.cpp

@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2022-2023, Sam Atkins <atkinssj@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include "Angle.h"
+#include <AK/Math.h>
+#include <LibWeb/CSS/Percentage.h>
+#include <LibWeb/CSS/StyleValues/CSSMathValue.h>
+
+namespace Web::CSS {
+
+Angle::Angle(double value, Type type)
+    : m_type(type)
+    , m_value(value)
+{
+}
+
+Angle Angle::make_degrees(double value)
+{
+    return { value, Type::Deg };
+}
+
+Angle Angle::percentage_of(Percentage const& percentage) const
+{
+    return Angle { percentage.as_fraction() * m_value, m_type };
+}
+
+String Angle::to_string() const
+{
+    return MUST(String::formatted("{}deg", to_degrees()));
+}
+
+double Angle::to_degrees() const
+{
+    switch (m_type) {
+    case Type::Deg:
+        return m_value;
+    case Type::Grad:
+        return m_value * (360.0 / 400.0);
+    case Type::Rad:
+        return AK::to_degrees(m_value);
+    case Type::Turn:
+        return m_value * 360.0;
+    }
+    VERIFY_NOT_REACHED();
+}
+
+double Angle::to_radians() const
+{
+    return AK::to_radians(to_degrees());
+}
+
+StringView Angle::unit_name() const
+{
+    switch (m_type) {
+    case Type::Deg:
+        return "deg"sv;
+    case Type::Grad:
+        return "grad"sv;
+    case Type::Rad:
+        return "rad"sv;
+    case Type::Turn:
+        return "turn"sv;
+    }
+    VERIFY_NOT_REACHED();
+}
+
+Optional<Angle::Type> Angle::unit_from_name(StringView name)
+{
+    if (name.equals_ignoring_ascii_case("deg"sv)) {
+        return Type::Deg;
+    }
+    if (name.equals_ignoring_ascii_case("grad"sv)) {
+        return Type::Grad;
+    }
+    if (name.equals_ignoring_ascii_case("rad"sv)) {
+        return Type::Rad;
+    }
+    if (name.equals_ignoring_ascii_case("turn"sv)) {
+        return Type::Turn;
+    }
+    return {};
+}
+
+Angle Angle::resolve_calculated(NonnullRefPtr<CSSMathValue> const& calculated, Layout::Node const&, Angle const& reference_value)
+{
+    return calculated->resolve_angle_percentage(reference_value).value();
+}
+
+}