Add ability to copy item NBT

src/main/java/net/mision_thi/nbttooltips/NBTtooltipsMod.java

@@ -14,7 +14,8 @@ public class NBTtooltipsMod implements ModInitializer {
 	public static final MinecraftClient client = MinecraftClient.getInstance();
 	public static final String MOD_ID = "NBTtooltips";
 	public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);
-	public static final KeyBinding KEYBIND = KeyBindingHelper.registerKeyBinding(new KeyBinding("nbttooltips.keybind", InputUtil.Type.KEYSYM, GLFW.GLFW_KEY_LEFT_ALT, KeyBinding.INVENTORY_CATEGORY));
+	public static final KeyBinding SHOW_NBT_KEYBIND = KeyBindingHelper.registerKeyBinding(new KeyBinding("nbttooltips.keybind.show", InputUtil.Type.KEYSYM, GLFW.GLFW_KEY_LEFT_ALT, KeyBinding.INVENTORY_CATEGORY));
+	public static final KeyBinding COPY_NBT_KEYBIND = KeyBindingHelper.registerKeyBinding(new KeyBinding("nbttooltips.keybind.copy", InputUtil.Type.KEYSYM, GLFW.GLFW_KEY_RIGHT_ALT, KeyBinding.INVENTORY_CATEGORY));
 
 	@Override
 	public void onInitialize() {

src/main/java/net/mision_thi/nbttooltips/mixin/mision_thi_TooltipChanger.java

@@ -29,26 +29,30 @@ public abstract class mision_thi_TooltipChanger {
 
 	@Redirect(method = "getTooltip", at = @At(value = "INVOKE", target = "Lnet/minecraft/item/tooltip/TooltipType;isCreative()Z"))
 	protected boolean forceVisible(TooltipType instance) {
-		int code = InputUtil.fromTranslationKey(NBTtooltipsMod.KEYBIND.getBoundKeyTranslationKey()).getCode();
+		int code = InputUtil.fromTranslationKey(NBTtooltipsMod.SHOW_NBT_KEYBIND.getBoundKeyTranslationKey()).getCode();
 		shouldShow = instance.isAdvanced() && InputUtil.isKeyPressed(client.getWindow().getHandle(), code);
 		return shouldShow || instance.isCreative();
 	}
 
 	@Inject(method = "getTooltip", at = @At("RETURN"))
 	protected void injectEditTooltipmethod(Item.TooltipContext context, PlayerEntity player, TooltipType type, CallbackInfoReturnable<List<Text>> info) {
 
+		ItemStack itemStack = (ItemStack) (Object) this;
+
 		// If the advanced tooltips are on and the shift key is pressed the method is run.
 		if (shouldShow && !isEmpty()) {
-			ItemStack itemStack = (ItemStack) (Object) this;
-
 			/*
 				Before calling the main method from the `tooltip changer` class.
 				We check if the item even has custom NBT.
 			 */
 			if (!itemStack.getComponentChanges().isEmpty()) {
 				TooltipChanger.Main(itemStack, info.getReturnValue());
 			}
+		}
 
+		int code = InputUtil.fromTranslationKey(NBTtooltipsMod.COPY_NBT_KEYBIND.getBoundKeyTranslationKey()).getCode();
+		if (InputUtil.isKeyPressed(client.getWindow().getHandle(), code)) {
+			client.keyboard.setClipboard(TooltipChanger.getNbtElement(itemStack).asString());
 		}
 	}
 }

src/main/java/net/mision_thi/nbttooltips/tooltips/TooltipChanger.java

@@ -58,10 +58,14 @@ public static void Main(ItemStack itemStack, List<Text> list) {
         // build the nbt text
         NbtTextBuilder builder = new NbtTextBuilder();
         builder.append(Text.translatable("item.nbt_tags.nbttooltips").formatted(Formatting.DARK_GRAY));
-        builder.buildElement(ComponentChanges.CODEC.encodeStart(NBT_OPS_UNLIMITED, itemStack.getComponentChanges()).getOrThrow());
+        builder.buildElement(getNbtElement(itemStack));
         list.addAll(index, builder.build());
     }
 
+    public static NbtElement getNbtElement(ItemStack itemStack) {
+        return ComponentChanges.CODEC.encodeStart(NBT_OPS_UNLIMITED, itemStack.getComponentChanges()).getOrThrow();
+    }
+
     /**
      * @author aMelonRind
      */

src/main/resources/assets/nbttooltips/lang/en_us.json

@@ -1,4 +1,5 @@
 {
-  "nbttooltips.keybind": "Show NBT",
+  "nbttooltips.keybind.show": "Show NBT",
+  "nbttooltips.keybind.copy": "Copy NBT",
   "item.nbt_tags.nbttooltips": "NBT: "
 }