InventoryClickEvent

@SuppressWarnings("deprecation")
    @EventHandler
    public void CGinvClick(InventoryClickEvent event) {
        final int slot = 0; //The first slot of the chest
        Player p = (Player) event.getWhoClicked();
        p.sendMessage(event.getInventory().getName());
        if (event.getRawSlot() < event.getInventory().getSize() && //This makes sure the player clicked in the chest, and not the player's inventory.
                event.getRawSlot() == slot) // This makes sure it only gives the player the item in his hand if he clicks the item. (Could be replaced with event.getItem() == book)
            {
            event.setCancelled(true); //If you don't cancel it, it will do this odd thing you showed in your video, where it creates ghost books.
            ItemStack book = new ItemStack(Material.WRITTEN_BOOK);
            book.setAmount(1);
            event.getInventory().clear(); //Clearing it, in case the player placed the book in the chest.
            event.getInventory().setItem(slot,book); //Because we cancelled the event, we have to manually give the player the item on his cursor.
            p.updateInventory();
            p.setItemOnCursor(book); //Can't explain, remove it to see the difference :P


        }
    }