Nameable Banner API

paper-server/patches/sources/net/minecraft/world/level/block/entity/BannerBlockEntity.java.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/world/level/block/entity/BannerBlockEntity.java
 +++ b/net/minecraft/world/level/block/entity/BannerBlockEntity.java
-@@ -19,6 +19,10 @@
+@@ -19,13 +19,17 @@
  import net.minecraft.world.level.block.state.BlockState;
  import org.slf4j.Logger;
  
@@ -11,6 +11,14 @@
  public class BannerBlockEntity extends BlockEntity implements Nameable {
  
      private static final Logger LOGGER = LogUtils.getLogger();
+     public static final int MAX_PATTERNS = 6;
+     private static final String TAG_PATTERNS = "patterns";
+     @Nullable
+-    private Component name;
++    public Component name; // Paper - public
+     public DyeColor baseColor;
+     private BannerPatternLayers patterns;
+ 
 @@ -74,7 +78,7 @@
              BannerPatternLayers.CODEC.parse(registries.createSerializationContext(NbtOps.INSTANCE), nbt.get("patterns")).resultOrPartial((s) -> {
                  BannerBlockEntity.LOGGER.error("Failed to parse banner patterns: '{}'", s);

paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftBanner.java

@@ -112,4 +112,26 @@ public class CraftBanner extends CraftBlockEntityState<BannerBlockEntity> implem
     public CraftBanner copy(Location location) {
         return new CraftBanner(this, location);
     }
+
+    // Paper start
+    @Override
+    public net.kyori.adventure.text.Component customName() {
+        return io.papermc.paper.adventure.PaperAdventure.asAdventure(this.getSnapshot().getCustomName());
+    }
+
+    @Override
+    public void customName(net.kyori.adventure.text.Component customName) {
+        this.getSnapshot().name = io.papermc.paper.adventure.PaperAdventure.asVanilla(customName);
+    }
+
+    @Override
+    public String getCustomName() {
+        return net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().serializeOrNull(this.customName());
+    }
+
+    @Override
+    public void setCustomName(String name) {
+       this.customName(net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer.legacySection().deserializeOrNull(name));
+    }
+    // Paper end
 }