Tweak the screen registry's generics to fix type inference (#857)

* Tweak the screen registry's generics to fix type inference

* Fix test mod

fabric-screen-handler-api-v1/build.gradle

@@ -1,5 +1,5 @@
 archivesBaseName = "fabric-screen-handler-api-v1"
-version = getSubprojectVersion(project, "1.0.1")
+version = getSubprojectVersion(project, "1.1.0")
 
 minecraft {
 	accessWidener = file('src/main/resources/fabric-screen-handler-api-v1.accesswidener')

fabric-screen-handler-api-v1/src/main/java/net/fabricmc/fabric/api/client/screenhandler/v1/ScreenRegistry.java

@@ -61,9 +61,9 @@ public final class ScreenRegistry {
 	 * @param <H>           the screen handler type
 	 * @param <S>           the screen type
 	 */
-	public static <H extends ScreenHandler, S extends Screen & ScreenHandlerProvider<H>> void register(ScreenHandlerType<? extends H> type, Factory<? super H, ? extends S> screenFactory) {
+	public static <H extends ScreenHandler, S extends Screen & ScreenHandlerProvider<H>> void register(ScreenHandlerType<? extends H> type, Factory<H, S> screenFactory) {
 		// Convert our factory to the vanilla provider here as the vanilla interface won't be available to modders.
-		HandledScreens.<H, S>register(type, screenFactory::create);
+		HandledScreens.register(type, screenFactory::create);
 	}
 
 	/**

fabric-screen-handler-api-v1/src/testmod/java/net/fabricmc/fabric/test/screenhandler/client/ClientScreenHandlerTest.java

@@ -20,21 +20,13 @@ import net.minecraft.client.gui.screen.ingame.Generic3x3ContainerScreen;
 
 import net.fabricmc.fabric.api.client.screenhandler.v1.ScreenRegistry;
 import net.fabricmc.fabric.test.screenhandler.ScreenHandlerTest;
-import net.fabricmc.fabric.test.screenhandler.screen.BoxScreenHandler;
-import net.fabricmc.fabric.test.screenhandler.screen.PositionedBagScreenHandler;
 import net.fabricmc.api.ClientModInitializer;
 
 public class ClientScreenHandlerTest implements ClientModInitializer {
 	@Override
 	public void onInitializeClient() {
 		ScreenRegistry.register(ScreenHandlerTest.BAG_SCREEN_HANDLER, Generic3x3ContainerScreen::new);
-		ScreenRegistry.<PositionedBagScreenHandler, PositionedScreen<PositionedBagScreenHandler>>register(
-				ScreenHandlerTest.POSITIONED_BAG_SCREEN_HANDLER,
-				PositionedScreen::new
-		);
-		ScreenRegistry.<BoxScreenHandler, PositionedScreen<BoxScreenHandler>>register(
-				ScreenHandlerTest.BOX_SCREEN_HANDLER,
-				PositionedScreen::new
-		);
+		ScreenRegistry.register(ScreenHandlerTest.POSITIONED_BAG_SCREEN_HANDLER, PositionedScreen::new);
+		ScreenRegistry.register(ScreenHandlerTest.BOX_SCREEN_HANDLER, PositionedScreen::new);
 	}
 }

fabric-screen-handler-api-v1/src/testmod/java/net/fabricmc/fabric/test/screenhandler/client/PositionedScreen.java

@@ -16,6 +16,8 @@
 
 package net.fabricmc.fabric.test.screenhandler.client;
 
+import java.util.Optional;
+
 import com.mojang.blaze3d.systems.RenderSystem;
 
 import net.minecraft.client.gui.screen.ingame.HandledScreen;
@@ -29,11 +31,20 @@ import net.minecraft.util.math.BlockPos;
 
 import net.fabricmc.fabric.test.screenhandler.screen.PositionedScreenHandler;
 
-public class PositionedScreen<T extends ScreenHandler & PositionedScreenHandler> extends HandledScreen<T> {
+public class PositionedScreen extends HandledScreen<ScreenHandler> {
 	private static final Identifier TEXTURE = new Identifier("minecraft", "textures/gui/container/dispenser.png");
 
-	public PositionedScreen(T handler, PlayerInventory inventory, Text title) {
-		super(handler, inventory, title);
+	public PositionedScreen(ScreenHandler handler, PlayerInventory inventory, Text title) {
+		super(handler, inventory, getPositionText(handler).orElse(title));
+	}
+
+	private static Optional<Text> getPositionText(ScreenHandler handler) {
+		if (handler instanceof PositionedScreenHandler) {
+			BlockPos pos = ((PositionedScreenHandler) handler).getPos();
+			return pos != null ? Optional.of(new LiteralText("(" + pos.toShortString() + ")")) : Optional.empty();
+		} else {
+			return Optional.empty();
+		}
 	}
 
 	@Override
@@ -44,11 +55,10 @@ public class PositionedScreen<T extends ScreenHandler & PositionedScreenHandler>
 	}
 
 	@Override
-	protected void drawForeground(MatrixStack matrices, int mouseX, int mouseY) {
-		BlockPos pos = handler.getPos();
-		Text usedTitle = pos != null ? new LiteralText("(" + pos.toShortString() + ")") : title;
-		textRenderer.draw(matrices, usedTitle, (float) (backgroundWidth / 2 - textRenderer.getWidth(usedTitle) / 2), 6.0F, 0x404040);
-		textRenderer.draw(matrices, playerInventory.getDisplayName(), 8.0F, backgroundHeight - 96 + 2, 0x404040);
+	protected void init() {
+		super.init();
+		// Center the title
+		titleX = (backgroundWidth - textRenderer.getWidth(title)) / 2;
 	}
 
 	@Override