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/StyleValues/TransitionStyleValue.h

@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2024, Matthew Olsson <mattco@serenityos.org>.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <LibWeb/CSS/CSSStyleValue.h>
+#include <LibWeb/CSS/CalculatedOr.h>
+#include <LibWeb/CSS/StyleValues/CustomIdentStyleValue.h>
+#include <LibWeb/CSS/StyleValues/EasingStyleValue.h>
+#include <LibWeb/CSS/Time.h>
+
+namespace Web::CSS {
+
+class TransitionStyleValue final : public StyleValueWithDefaultOperators<TransitionStyleValue> {
+public:
+    struct Transition {
+        ValueComparingRefPtr<CustomIdentStyleValue> property_name;
+        TimeOrCalculated duration { CSS::Time::make_seconds(0.0) };
+        TimeOrCalculated delay { CSS::Time::make_seconds(0.0) };
+        ValueComparingRefPtr<EasingStyleValue> easing;
+
+        bool operator==(Transition const&) const = default;
+    };
+
+    static ValueComparingNonnullRefPtr<TransitionStyleValue> create(Vector<Transition> transitions)
+    {
+        return adopt_ref(*new (nothrow) TransitionStyleValue(move(transitions)));
+    }
+
+    virtual ~TransitionStyleValue() override = default;
+
+    auto const& transitions() const { return m_transitions; }
+
+    virtual String to_string() const override;
+
+    bool properties_equal(TransitionStyleValue const& other) const;
+
+private:
+    explicit TransitionStyleValue(Vector<Transition> transitions)
+        : StyleValueWithDefaultOperators(Type::Transition)
+        , m_transitions(move(transitions))
+    {
+    }
+
+    Vector<Transition> m_transitions;
+};
+
+}