Implement PlayerBookEditEvent. Adds BUKKIT-1995

src/main/java/net/minecraft/server/PlayerConnection.java

@@ -1661,10 +1661,10 @@ public class PlayerConnection extends Connection {
 
                 itemstack1 = this.player.inventory.getItemInHand();
                 if (itemstack != null && itemstack.id == Item.BOOK_AND_QUILL.id && itemstack.id == itemstack1.id) {
-                    itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages"));
+                    CraftEventFactory.handleEditBookEvent(player, itemstack); // CraftBukkit
                 }
-            } catch (Exception exception) {
                 // CraftBukkit start
+            } catch (Throwable exception) {
                 this.minecraftServer.getLogger().warning(this.player.name + " sent invalid MC|BEdit data", exception);
                 this.disconnect("Invalid book data!");
                 // CraftBukkit end
@@ -1679,13 +1679,10 @@ public class PlayerConnection extends Connection {
 
                 itemstack1 = this.player.inventory.getItemInHand();
                 if (itemstack != null && itemstack.id == Item.WRITTEN_BOOK.id && itemstack1.id == Item.BOOK_AND_QUILL.id) {
-                    itemstack1.a("author", (NBTBase) (new NBTTagString("author", this.player.name)));
-                    itemstack1.a("title", (NBTBase) (new NBTTagString("title", itemstack.getTag().getString("title"))));
-                    itemstack1.a("pages", (NBTBase) itemstack.getTag().getList("pages"));
-                    itemstack1.id = Item.WRITTEN_BOOK.id;
+                    CraftEventFactory.handleEditBookEvent(player, itemstack); // CraftBukkit
                 }
-            } catch (Exception exception1) {
                 // CraftBukkit start
+            } catch (Throwable exception1) {
                 this.minecraftServer.getLogger().warning(this.player.name + " sent invalid MC|BSign data", exception1);
                 this.disconnect("Invalid book data!");
                 // CraftBukkit end

src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java

@@ -18,10 +18,13 @@ import net.minecraft.server.EntityLiving;
 import net.minecraft.server.EntityPlayer;
 import net.minecraft.server.EntityPotion;
 import net.minecraft.server.Explosion;
+import net.minecraft.server.IInventory;
 import net.minecraft.server.InventoryCrafting;
 import net.minecraft.server.Item;
 import net.minecraft.server.ItemStack;
 import net.minecraft.server.Packet101CloseWindow;
+import net.minecraft.server.Packet103SetSlot;
+import net.minecraft.server.Slot;
 import net.minecraft.server.World;
 import net.minecraft.server.WorldServer;
 
@@ -64,6 +67,7 @@ import org.bukkit.event.inventory.PrepareItemCraftEvent;
 import org.bukkit.event.player.*;
 import org.bukkit.event.server.ServerListPingEvent;
 import org.bukkit.inventory.InventoryView;
+import org.bukkit.inventory.meta.BookMeta;
 
 public class CraftEventFactory {
     public static final DamageSource MELTING = CraftDamageSource.copyOf(DamageSource.BURN);
@@ -672,4 +676,26 @@ public class CraftEventFactory {
         human.world.getServer().getPluginManager().callEvent(event);
         human.activeContainer.transferTo(human.defaultContainer, human.getBukkitEntity());
     }
+
+    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.id == Item.WRITTEN_BOOK.id);
+        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.id == Item.BOOK_AND_QUILL.id) {
+            if (!editBookEvent.isCancelled()) {
+                CraftItemStack.setItemMeta(itemInHand, editBookEvent.getNewBookMeta());
+                if (editBookEvent.isSigning()) {
+                    itemInHand.id = Item.WRITTEN_BOOK.id;
+                }
+            }
+
+            // Client will have updated its idea of the book item; we need to overwrite that
+            Slot slot = player.activeContainer.a((IInventory) player.inventory, itemInHandIndex);
+            player.playerConnection.sendPacket(new Packet103SetSlot(player.activeContainer.windowId, slot.g, itemInHand));
+        }
+    }
 }

src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java

@@ -298,7 +298,7 @@ public final class CraftItemStack extends ItemStack {
         return getItemMeta(handle);
     }
 
-    static ItemMeta getItemMeta(net.minecraft.server.ItemStack item) {
+    public static ItemMeta getItemMeta(net.minecraft.server.ItemStack item) {
         if (!hasItemMeta(item)) {
             return CraftItemFactory.instance().getItemMeta(getType(item));
         }
@@ -338,7 +338,7 @@ public final class CraftItemStack extends ItemStack {
         return setItemMeta(handle, itemMeta);
     }
 
-    static boolean setItemMeta(net.minecraft.server.ItemStack item, ItemMeta itemMeta) {
+    public static boolean setItemMeta(net.minecraft.server.ItemStack item, ItemMeta itemMeta) {
         if (item == null) {
             return false;
         }