CatStation/Content.Server/Power/EntitySystems/ActivatableUIRequiresPowerSystem.cs

using Content.Shared.Power;
using Content.Shared.Power.Components;
using Content.Shared.Power.EntitySystems;
using Content.Shared.UserInterface;

namespace Content.Server.Power.EntitySystems;

public sealed partial class ActivatableUIRequiresPowerSystem : SharedActivatableUIRequiresPowerSystem
{
    [Dependency] private ActivatableUISystem _activatableUI = default!;

    [SubscribeLocalEvent]
    private void OnPowerChanged(EntityUid uid, ActivatableUIRequiresPowerComponent component, ref PowerChangedEvent args)
    {
        if (!args.Powered)
            _activatableUI.CloseAll(uid);
    }
}