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/PositionStyleValue.cpp

@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <andreas@ladybird.org>
+ * Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
+ * Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
+ * Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include "PositionStyleValue.h"
+
+namespace Web::CSS {
+
+bool PositionStyleValue::is_center() const
+{
+    return (edge_x()->edge() == PositionEdge::Left
+               && edge_x()->offset().is_percentage() && edge_x()->offset().percentage() == Percentage { 50 })
+        && (edge_y()->edge() == PositionEdge::Top
+            && edge_y()->offset().is_percentage() && edge_y()->offset().percentage() == Percentage { 50 });
+}
+
+CSSPixelPoint PositionStyleValue::resolved(Layout::Node const& node, CSSPixelRect const& rect) const
+{
+    // Note: A preset + a none default x/y_relative_to is impossible in the syntax (and makes little sense)
+    CSSPixels x = m_properties.edge_x->offset().to_px(node, rect.width());
+    CSSPixels y = m_properties.edge_y->offset().to_px(node, rect.height());
+    if (m_properties.edge_x->edge() == PositionEdge::Right)
+        x = rect.width() - x;
+    if (m_properties.edge_y->edge() == PositionEdge::Bottom)
+        y = rect.height() - y;
+    return CSSPixelPoint { rect.x() + x, rect.y() + y };
+}
+
+String PositionStyleValue::to_string() const
+{
+    return MUST(String::formatted("{} {}", m_properties.edge_x->to_string(), m_properties.edge_y->to_string()));
+}
+
+}