Package org.bukkit.inventory

Class InventoryView

  • public abstract class InventoryView
extends Object
    Represents a view linking two inventories and a single player (whose inventory may or may not be one of the two).

    Note: If you implement this interface but fail to satisfy the expected contracts of certain methods, there's no guarantee that the game will work as it should.

    • Constructor Detail

      • InventoryView

        public InventoryView()

    • Method Detail

      • getTopInventory

        @NotNull
public abstract Inventory getTopInventory()
        Get the upper inventory involved in this transaction.
        Returns:
        the inventory

      • getBottomInventory

        @NotNull
public abstract Inventory getBottomInventory()
        Get the lower inventory involved in this transaction.
        Returns:
        the inventory

      • getPlayer

        @NotNull
public abstract HumanEntity getPlayer()
        Get the player viewing.
        Returns:
        the player

      • getType

        @NotNull
public abstract InventoryType getType()
        Determine the type of inventory involved in the transaction. This indicates the window style being shown. It will never return PLAYER, since that is common to all windows.
        Returns:
        the inventory type

      • setItem

        public void setItem​(int slot,
                    @Nullable
                    ItemStack item)
        Sets one item in this inventory view by its raw slot ID.

        Note: If slot ID -999 is chosen, it may be expected that the item is dropped on the ground. This is not required behaviour, however.

        Parameters:
        slot - The ID as returned by InventoryClickEvent.getRawSlot()
        item - The new item to put in the slot, or null to clear it.

      • getItem

        @Nullable
public ItemStack getItem​(int slot)
        Gets one item in this inventory view by its raw slot ID.
        Parameters:
        slot - The ID as returned by InventoryClickEvent.getRawSlot()
        Returns:
        The item currently in the slot.

      • setCursor

        public final void setCursor​(@Nullable
                            ItemStack item)
        Sets the item on the cursor of one of the viewing players.
        Parameters:
        item - The item to put on the cursor, or null to remove the item on their cursor.

      • getCursor

        @Nullable
public final ItemStack getCursor()
        Get the item on the cursor of one of the viewing players.
        Returns:
        The item on the player's cursor, or null if they aren't holding one.

      • getInventory

        @Nullable
public final Inventory getInventory​(int rawSlot)
        Gets the inventory corresponding to the given raw slot ID. If the slot ID is OUTSIDE null will be returned, otherwise behaviour for illegal and negative slot IDs is undefined. May be used with convertSlot(int) to directly index an underlying inventory.
        Parameters:
        rawSlot - The raw slot ID.
        Returns:
        corresponding inventory, or null

      • convertSlot

        public final int convertSlot​(int rawSlot)
        Converts a raw slot ID into its local slot ID into whichever of the two inventories the slot points to.

        If the raw slot refers to the upper inventory, it will be returned unchanged and thus be suitable for getTopInventory().getItem(); if it refers to the lower inventory, the output will differ from the input and be suitable for getBottomInventory().getItem().

        Parameters:
        rawSlot - The raw slot ID.
        Returns:
        The converted slot ID.

      • getSlotType

        @NotNull
public final InventoryType.SlotType getSlotType​(int slot)
        Determine the type of the slot by its raw slot ID.

        If the type of the slot is unknown, then InventoryType.SlotType.CONTAINER will be returned.

        Parameters:
        slot - The raw slot ID
        Returns:
        the slot type

      • close

        public final void close()
        Closes the inventory view.

      • countSlots

        public final int countSlots()
        Check the total number of slots in this view, combining the upper and lower inventories.

        Note though that it's possible for this to be greater than the sum of the two inventories if for example some slots are not being used.

        Returns:
        The total size

      • setProperty

        public final boolean setProperty​(@NotNull
                                 InventoryView.Property prop,
                                 int value)
        Sets an extra property of this inventory if supported by that inventory, for example the state of a progress bar.
        Parameters:
        prop - the window property to update
        value - the new value for the window property
        Returns:
        true if the property was updated successfully, false if the property is not supported by that inventory

      • getTitle

        @NotNull
public abstract String getTitle()
        Get the title of this inventory window.
        Returns:
        The title.