Paper/src/main/java/net/minecraft/server/BlockWorkbench.java

package net.minecraft.server;

// CraftBukkit start
import org.bukkit.craftbukkit.CraftServer;
import org.bukkit.craftbukkit.CraftWorld;
import org.bukkit.craftbukkit.block.CraftBlock;
import org.bukkit.entity.LivingEntity;
import org.bukkit.event.Event.Type;
import org.bukkit.event.block.BlockInteractEvent;
// CraftBukkit end

public class BlockWorkbench extends Block {

    protected BlockWorkbench(int i) {
        super(i, Material.c);
        bh = 59;
    }

    public int a(int i) {
        if (i == 1) {
            return bh - 16;
        }
        if (i == 0) {
            return Block.x.a(0);
        }
        if (i == 2 || i == 4) {
            return bh + 1;
        } else {
            return bh;
        }
    }

    public boolean a(World world, int i, int j, int k, EntityPlayer entityplayer) {
        if (world.z) {
            return true;
        } else {
            // CraftBukkit start - Interact Workbench
            CraftWorld craftWorld = ((WorldServer) world).getWorld();
            CraftServer server = ((WorldServer) world).getServer();
            Type eventType = Type.BLOCK_INTERACT;
            CraftBlock block = (CraftBlock) craftWorld.getBlockAt(i, j, k);
            LivingEntity who = (entityplayer == null)?null:(LivingEntity)entityplayer.getBukkitEntity();
            
            BlockInteractEvent bie = new BlockInteractEvent(eventType, block, who);
            server.getPluginManager().callEvent(bie);

            if (bie.isCancelled()) {
                return true;
            }
            // CraftBukkit end

            entityplayer.a(i, j, k);
            return true;
        }
    }
}