osu-lazer/osu.Game/Rulesets/Edit/ExpandingToolboxContainer.cs

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.

using osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Input.Events;
using osu.Game.Configuration;
using osu.Game.Graphics.Containers;
using osu.Game.Screens.Edit;
using osuTK;

namespace osu.Game.Rulesets.Edit
{
    public partial class ExpandingToolboxContainer : ExpandingContainer
    {
        protected override double HoverExpansionDelay => 250;

        protected override bool ExpandOnHover => expandOnHover;

        private readonly Bindable<bool> contractSidebars = new Bindable<bool>();

        private bool expandOnHover;

        [Resolved]
        private Editor? editor { get; set; }

        public ExpandingToolboxContainer(float contractedWidth, float expandedWidth)
            : base(contractedWidth, expandedWidth)
        {
            RelativeSizeAxes = Axes.Y;

            FillFlow.Spacing = new Vector2(5);
            FillFlow.Padding = new MarginPadding { Vertical = 5 };

            Expanded.Value = true;
        }

        [BackgroundDependencyLoader]
        private void load(OsuConfigManager config)
        {
            config.BindWith(OsuSetting.EditorContractSidebars, contractSidebars);
        }

        protected override void Update()
        {
            base.Update();

            bool requireContracting = contractSidebars.Value || editor?.DrawSize.X / editor?.DrawSize.Y < 1.7f;

            if (expandOnHover != requireContracting)
            {
                expandOnHover = requireContracting;
                Expanded.Value = !expandOnHover;
            }
        }

        protected override bool OnMouseDown(MouseDownEvent e) => true;

        protected override bool OnClick(ClickEvent e) => true;
    }
}