CraftEventFactory.java 文件源码

public static void handleEditBookEvent(EntityPlayer player, ItemStack newBookItem) {
    int itemInHandIndex = player.inventory.itemInHandIndex;

    PlayerEditBookEvent editBookEvent = new PlayerEditBookEvent(player.getBukkitEntity(), player.inventory.itemInHandIndex, (BookMeta) CraftItemStack.getItemMeta(player.inventory.getItemInHand()), (BookMeta) CraftItemStack.getItemMeta(newBookItem), newBookItem.getItem() == Items.WRITTEN_BOOK);
    player.world.getServer().getPluginManager().callEvent(editBookEvent);
    ItemStack itemInHand = player.inventory.getItem(itemInHandIndex);

    // If they've got the same item in their hand, it'll need to be updated.
    if (itemInHand != null && itemInHand.getItem() == Items.WRITABLE_BOOK) {
        if (!editBookEvent.isCancelled()) {
            if (editBookEvent.isSigning()) {
                itemInHand.setItem(Items.WRITTEN_BOOK);
            }
            CraftMetaBook meta = (CraftMetaBook) editBookEvent.getNewBookMeta();
            List<IChatBaseComponent> pages = meta.pages;
            for (int i = 0; i < pages.size(); i++) {
                pages.set(i, stripEvents(pages.get(i)));
            }
            CraftItemStack.setItemMeta(itemInHand, meta);
        }

        // Client will have updated its idea of the book item; we need to overwrite that
        Slot slot = player.activeContainer.getSlot(player.inventory, itemInHandIndex);
        player.playerConnection.sendPacket(new PacketPlayOutSetSlot(player.activeContainer.windowId, slot.rawSlotIndex, itemInHand));
    }
}