Play books without opening the book GUI

src/main/java/the_fireplace/audiobook/AudiobookLogic.java

@@ -10,7 +10,7 @@
 
 public class AudiobookLogic {
     public static void playBook(ItemStack stack) {
-        playBook(stack.getTag() != null ? BookScreen.readPages(stack.getTag()) : null);
+        playBook(stack.hasTag() && stack.getTag() != null ? BookScreen.readPages(stack.getTag()) : null);
     }
 
     public static void playBook(BookScreen.Contents contents) {

src/main/java/the_fireplace/audiobook/mixin/MinecraftClientMixin.java

@@ -0,0 +1,34 @@
+package the_fireplace.audiobook.mixin;
+
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.screen.ingame.BookScreen;
+import net.minecraft.client.network.ClientPlayerEntity;
+import net.minecraft.item.BookItem;
+import net.minecraft.util.Hand;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import the_fireplace.audiobook.Audiobook;
+import the_fireplace.audiobook.AudiobookLogic;
+
+import javax.annotation.Nullable;
+
+@Mixin(MinecraftClient.class)
+public abstract class MinecraftClientMixin {
+
+	@Shadow @Nullable public ClientPlayerEntity player;
+
+	@Inject(at = @At(value="HEAD"), method = "handleInputEvents")
+	private void handleInputEvents(CallbackInfo info) {
+		if(Audiobook.audiobookKey.isPressed() && player != null) {
+			//noinspection ConstantConditions
+			if(player.getStackInHand(Hand.MAIN_HAND).getItem() instanceof BookItem && player.getStackInHand(Hand.MAIN_HAND).hasTag() && player.getStackInHand(Hand.MAIN_HAND).getTag().contains("pages") && !BookScreen.readPages(player.getStackInHand(Hand.MAIN_HAND).getTag()).isEmpty())
+				AudiobookLogic.playBook(player.getStackInHand(Hand.MAIN_HAND));
+			else if(player.getStackInHand(Hand.OFF_HAND).getItem() instanceof BookItem)
+				AudiobookLogic.playBook(player.getStackInHand(Hand.OFF_HAND));
+		} else if(Audiobook.stopAudiobookKey.isPressed())
+			AudiobookLogic.stopNarration();
+	}
+}

src/main/resources/audiobook.mixins.json

@@ -4,7 +4,8 @@
   "package": "the_fireplace.audiobook.mixin",
   "compatibilityLevel": "JAVA_8",
   "mixins": [
-    "BookScreenMixin"
+    "BookScreenMixin",
+    "MinecraftClientMixin"
   ],
   "injectors": {
     "defaultRequire": 1

src/main/resources/fabric.mod.json

@@ -21,9 +21,6 @@
   "entrypoints": {
     "client": [
       "the_fireplace.audiobook.Audiobook"
-    ],
-    "modmenu": [
-      "the_fireplace.audiobook.ModMenuIntegration"
     ]
   },
   "mixins": [