space-station-14/Content.Shared/UserInterface/ActivatableUIRequiresAnchorSystem.cs

using Content.Shared.Popups;

namespace Content.Shared.UserInterface;

/// <summary>
/// <see cref="ActivatableUIRequiresAnchorComponent"/>
/// </summary>
public sealed class ActivatableUIRequiresAnchorSystem : EntitySystem
{
    [Dependency] private readonly SharedPopupSystem _popup = default!;

    public override void Initialize()
    {
        base.Initialize();
        SubscribeLocalEvent<ActivatableUIRequiresAnchorComponent, ActivatableUIOpenAttemptEvent>(OnActivatableUIOpenAttempt);
        SubscribeLocalEvent<ActivatableUIRequiresAnchorComponent, BoundUserInterfaceCheckRangeEvent>(OnUICheck);
    }

    private void OnUICheck(Entity<ActivatableUIRequiresAnchorComponent> ent, ref BoundUserInterfaceCheckRangeEvent args)
    {
        if (args.Result == BoundUserInterfaceRangeResult.Fail)
            return;

        if (!Transform(ent.Owner).Anchored)
        {
            args.Result = BoundUserInterfaceRangeResult.Fail;
        }
    }

    private void OnActivatableUIOpenAttempt(Entity<ActivatableUIRequiresAnchorComponent> ent, ref ActivatableUIOpenAttemptEvent args)
    {
        if (args.Cancelled)
            return;

        if (Transform(ent.Owner).Anchored)
            return;

        if (ent.Comp.Popup != null && !args.Silent)
        {
            _popup.PopupClient(Loc.GetString(ent.Comp.Popup), args.User);
        }

        args.Cancel();
    }
}