Fix crash when search yields no results

Signed-off-by: Lilly Rose Berner <lilly@lostluma.net>

build.gradle

@@ -23,6 +23,9 @@ dependencies {
 	modImplementation "net.fabricmc:fabric-loader:${project.fabric_loader_version}"
 	compileOnly "org.quiltmc:quilt-loader:${project.quilt_loader_version}"
 
+	implementation(annotationProcessor("io.github.llamalad7:mixinextras-fabric:${project.mixinextras_version}"))
+	include("io.github.llamalad7:mixinextras-fabric:${project.mixinextras_version}:slim")
+
 	ploceus.dependOsl(project.osl_version)
 }
 

gradle.properties

@@ -8,6 +8,7 @@ archives_base_name = modmenu
 # Dependencies
 minecraft_version = 1.12.2
 feather_build = 19
-fabric_loader_version = 0.14.22
+fabric_loader_version = 0.16.10
 quilt_loader_version = 0.19.2
+mixinextras_version=0.5.0-beta.5
 osl_version = 0.10.3

src/main/java/com/terraformersmc/modmenu/mixin/ListWidgetMixin.java

@@ -0,0 +1,27 @@
+package com.terraformersmc.modmenu.mixin;
+
+import com.llamalad7.mixinextras.expression.Definition;
+import com.llamalad7.mixinextras.expression.Expression;
+import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
+import com.llamalad7.mixinextras.sugar.Local;
+import net.minecraft.client.gui.widget.ListWidget;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+
+@Mixin(ListWidget.class)
+public abstract class ListWidgetMixin {
+	@Shadow
+	protected abstract int getHeight();
+
+	@Definition(id = "maxScroll", local = @Local(type = int.class, ordinal = 7))
+	@Expression("maxScroll > 0")
+	@ModifyExpressionValue(method = "render(IIF)V", at = @At("MIXINEXTRAS:EXPRESSION"))
+	private boolean skipBlock(boolean original) {
+		if (this.getHeight() == 0) {
+			return false;
+		} else {
+			return original;
+		}
+	}
+}

src/main/resources/fabric.mod.json

@@ -21,7 +21,7 @@
   },
   "depends": {
     "minecraft": "1.12.x",
-    "fabricloader": ">=0.14.21",
+    "fabricloader": ">=0.16.10",
     "osl-entrypoints": ">=0.4.0",
     "osl-resource-loader": ">=0.2.3"
   },

src/main/resources/mixins.modmenu.json

@@ -6,10 +6,14 @@
   "client": [
     "AccessorButtonWidget",
     "InvokerScreen",
+    "ListWidgetMixin",
     "MixinGameMenu",
     "MixinTitleScreen"
   ],
   "injectors": {
     "defaultRequire": 1
+  },
+  "mixinextras": {
+    "minVersion": "0.5.0-beta.5"
   }
 }