AloneGame / Library / PackageCache / com.unity.2d.animation / Editor / LayoutOverlay / DropdownMenu.cs

using UnityEngine;
using UnityEngine.UIElements;

namespace UnityEditor.U2D.Layout
{
#if ENABLE_UXML_SERIALIZED_DATA
    [UxmlElement]
#endif
    internal partial class DropdownMenu : VisualElement
    {
#if ENABLE_UXML_TRAITS
        public class DropdownMenuFactory : UxmlFactory<DropdownMenu, DropdownMenuUxmlTraits> { }

        public class DropdownMenuUxmlTraits : UxmlTraits { }
#endif

        /*
        private ButtonGroup m_ButtonGroup;

        public DropdownMenu()
        {
            RegisterCallback<FocusOutEvent>(OnFocusOut, Capture.NoCapture);
            RegisterCallback<MouseLeaveEvent>(OnMouseLeaveEvent);
        }

        public void InitialiseWithButtonGroup(ButtonGroup buttonGroup)
        {
            if (m_ButtonGroup == buttonGroup)
                return;

            m_ButtonGroup = buttonGroup;
            var buttonGroupLocalPosition = parent.WorldToLocal(new Vector2(buttonGroup.worldBound.x, buttonGroup.worldBound.y));
            style.positionType = PositionType.Absolute;
            style.positionLeft = buttonGroupLocalPosition.x;
            style.positionTop = buttonGroupLocalPosition.y;
            style.flexDirection = buttonGroup.isHorizontal ? FlexDirection.Row : FlexDirection.Column;
            foreach (var element in buttonGroup.elements)
                Add(element);
        }

        private void OnMouseLeaveEvent(MouseLeaveEvent evt)
        {
            Close();
        }

        private void OnFocusOut(FocusOutEvent evt)
        {
            Close();
        }

        private void Close()
        {
            foreach (var element in contentContainer.Children())
                m_ButtonGroup.elements.Add(element);
            this.contentContainer.Clear();

            style.width = 0;
            style.height = 0;
            m_ButtonGroup = null;
        }
        */
    }
}