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

package net.minecraft.server;

// CraftBukkit start
import org.bukkit.craftbukkit.inventory.CraftInventory;
import org.bukkit.craftbukkit.inventory.CraftInventoryView;
// CraftBukkit end

public class ContainerDispenser extends Container {

    public TileEntityDispenser items; // CraftBukkit - private -> public
    // CraftBukkit start
    private CraftInventoryView bukkitEntity = null;
    private PlayerInventory player;
    // CraftBukkit end

    public ContainerDispenser(IInventory iinventory, TileEntityDispenser tileentitydispenser) {
        this.items = tileentitydispenser;
        // CraftBukkit start - save player
        // TODO: Should we check to make sure it really is an InventoryPlayer?
        this.player = (PlayerInventory)iinventory;
        // CraftBukkit end

        int i;
        int j;

        for (i = 0; i < 3; ++i) {
            for (j = 0; j < 3; ++j) {
                this.a(new Slot(tileentitydispenser, j + i * 3, 62 + j * 18, 17 + i * 18));
            }
        }

        for (i = 0; i < 3; ++i) {
            for (j = 0; j < 9; ++j) {
                this.a(new Slot(iinventory, j + i * 9 + 9, 8 + j * 18, 84 + i * 18));
            }
        }

        for (i = 0; i < 9; ++i) {
            this.a(new Slot(iinventory, i, 8 + i * 18, 142));
        }
    }

    public boolean c(EntityHuman entityhuman) {
        if (!this.checkReachable) return true; // CraftBukkit
        return this.items.a(entityhuman);
    }

    public ItemStack b(EntityHuman entityhuman, int i) {
        ItemStack itemstack = null;
        Slot slot = (Slot) this.b.get(i);

        if (slot != null && slot.d()) {
            ItemStack itemstack1 = slot.getItem();

            itemstack = itemstack1.cloneItemStack();
            if (i < 9) {
                if (!this.a(itemstack1, 9, 45, true)) {
                    return null;
                }
            } else if (!this.a(itemstack1, 0, 9, false)) {
                return null;
            }

            if (itemstack1.count == 0) {
                slot.set((ItemStack) null);
            } else {
                slot.e();
            }

            if (itemstack1.count == itemstack.count) {
                return null;
            }

            slot.a(entityhuman, itemstack1);
        }

        return itemstack;
    }

    // CraftBukkit start
    public CraftInventoryView getBukkitView() {
        if (bukkitEntity != null) {
            return bukkitEntity;
        }

        CraftInventory inventory = new CraftInventory(this.items);
        bukkitEntity = new CraftInventoryView(this.player.player.getBukkitEntity(), inventory, this);
        return bukkitEntity;
    }
    // CraftBukkit end
}