Provide backwards compat for mods that use the internals of CreativeI…

…nventoryScreenMixin

fabric-item-group-api-v1/src/client/java/net/fabricmc/fabric/mixin/itemgroup/client/CreativeInventoryScreenMixin.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2016, 2017, 2018, 2019 FabricMC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.fabricmc.fabric.mixin.itemgroup.client;
+
+import org.spongepowered.asm.mixin.Mixin;
+
+import net.minecraft.client.gui.screen.ingame.CreativeInventoryScreen;
+import net.minecraft.item.ItemGroup;
+
+@Mixin(value = CreativeInventoryScreen.class, priority = 100)
+public abstract class CreativeInventoryScreenMixin {
+	private static int fabric_currentPage = -1;
+
+	private void fabric_updateSelection() {
+	}
+
+	private boolean fabric_isGroupVisible(ItemGroup tab) {
+		return true;
+	}
+
+	private static int fabric_getPage() {
+		return -1;
+	}
+}

fabric-item-group-api-v1/src/client/resources/fabric-item-group-api-v1.client.mixins.json

@@ -0,0 +1,11 @@
+{
+  "required": true,
+  "package": "net.fabricmc.fabric.mixin.itemgroup.client",
+  "compatibilityLevel": "JAVA_17",
+  "client": [
+    "CreativeInventoryScreenMixin"
+  ],
+  "injectors": {
+    "defaultRequire": 1
+  }
+}

fabric-item-group-api-v1/src/main/resources/fabric.mod.json

@@ -21,6 +21,10 @@
   },
   "description": "An API for adding custom item groups.",
   "mixins": [
+    {
+      "config": "fabric-item-group-api-v1.client.mixins.json",
+      "environment": "client"
+    }
   ],
   "accessWidener": "fabric-item-group-api-v1.accesswidener",
   "custom": {

gradle.properties

@@ -68,5 +68,5 @@ fabric-client-tags-api-v1-version=1.1.1
 loom.platform=forge
 forge_version=1.20.1-47.1.3
 pack_format=15
-forgified_version=1.9.32
+forgified_version=1.9.33
 forge_fabric_loader_version=2.5.2+0.14.21+1.20.1