2.8.2 Build 104

Fixed #81
Close #82
Close #83

27 files changed, 328 insertions, 172 deletions

diff --git a/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsCore.java b/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsCore.java
index fbcf11103..657ec3018 100644
--- a/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsCore.java
+++ b/src/main/java/me/shedaniel/rei/RoughlyEnoughItemsCore.java
@@ -208,7 +208,7 @@ public class RoughlyEnoughItemsCore implements ClientModInitializer {
         });
         ClothClientHooks.SCREEN_MOUSE_SCROLLED.register((minecraftClient, screen, v, v1, v2) -> {
             if (screen instanceof ContainerScreen)
-                if (ScreenHelper.isOverlayVisible() && ScreenHelper.getLastOverlay().getRectangle().contains(ClientUtils.getMouseLocation()) && ScreenHelper.getLastOverlay().mouseScrolled(v, v1, v2))
+                if (ScreenHelper.isOverlayVisible() && ScreenHelper.getLastOverlay().isInside(ClientUtils.getMouseLocation()) && ScreenHelper.getLastOverlay().mouseScrolled(v, v1, v2))
                     return ActionResult.SUCCESS;
             return ActionResult.PASS;
         });
diff --git a/src/main/java/me/shedaniel/rei/api/ClientHelper.java b/src/main/java/me/shedaniel/rei/api/ClientHelper.java
new file mode 100644
index 000000000..86c234872
--- /dev/null
+++ b/src/main/java/me/shedaniel/rei/api/ClientHelper.java
@@ -0,0 +1,47 @@
+package me.shedaniel.rei.api;
+
+import me.shedaniel.rei.client.ClientHelperImpl;
+import net.fabricmc.api.ClientModInitializer;
+import net.fabricmc.fabric.api.client.keybinding.FabricKeyBinding;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+
+import java.util.List;
+
+public interface ClientHelper extends ClientModInitializer {
+    static ClientHelper getInstance() {
+        return ClientHelperImpl.instance;
+    }
+    
+    boolean isCheating();
+    
+    void setCheating(boolean cheating);
+    
+    List<ItemStack> getInventoryItemsTypes();
+    
+    void registerFabricKeyBinds();
+    
+    boolean tryCheatingStack(ItemStack stack);
+    
+    boolean executeRecipeKeyBind(ItemStack stack);
+    
+    boolean executeUsageKeyBind(ItemStack stack);
+    
+    String getModFromItem(Item item);
+    
+    void sendDeletePacket();
+    
+    String getFormattedModFromItem(Item item);
+    
+    FabricKeyBinding getRecipeKeyBinding();
+    
+    FabricKeyBinding getUsageKeyBinding();
+    
+    FabricKeyBinding getHideKeyBinding();
+    
+    FabricKeyBinding getPreviousPageKeyBinding();
+    
+    FabricKeyBinding getNextPageKeyBinding();
+    
+    boolean executeViewAllRecipesKeyBind();
+}
diff --git a/src/main/java/me/shedaniel/rei/api/DisplayHelper.java b/src/main/java/me/shedaniel/rei/api/DisplayHelper.java
index 5d4fda8a4..8234c20b3 100644
--- a/src/main/java/me/shedaniel/rei/api/DisplayHelper.java
+++ b/src/main/java/me/shedaniel/rei/api/DisplayHelper.java
@@ -12,6 +12,8 @@ public interface DisplayHelper {
     
     List<DisplayBoundsHandler> getSortedBoundsHandlers(Class screenClass);
     
+    List<DisplayBoundsHandler> getAllBoundsHandlers();
+    
     DisplayBoundsHandler getResponsibleBoundsHandler(Class screenClass);
     
     void registerBoundsHandler(DisplayBoundsHandler handler);
@@ -19,6 +21,8 @@ public interface DisplayHelper {
     BaseBoundsHandler getBaseBoundsHandler();
     
     public static interface DisplayBoundsHandler<T> {
+        public static final Rectangle EMPTY = new Rectangle();
+        
         Class getBaseSupportedClass();
         
         Rectangle getLeftBounds(T screen);
@@ -29,6 +33,10 @@ public interface DisplayHelper {
             return PASS;
         }
         
+        default ActionResult isInZone(boolean isOnRightSide, double mouseX, double mouseY) {
+            return PASS;
+        }
+        
         default Rectangle getItemListArea(Rectangle rectangle) {
             return new Rectangle(rectangle.x + 2, rectangle.y + 24, rectangle.width - 4, rectangle.height - (RoughlyEnoughItemsCore.getConfigManager().getConfig().sideSearchField ? 27 + 22 : 27));
         }
diff --git a/src/main/java/me/shedaniel/rei/api/DisplayVisibility.java b/src/main/java/me/shedaniel/rei/api/DisplayVisibility.java
index 231f3efb5..8195d88a0 100644
--- a/src/main/java/me/shedaniel/rei/api/DisplayVisibility.java
+++ b/src/main/java/me/shedaniel/rei/api/DisplayVisibility.java
@@ -1,5 +1,8 @@
 package me.shedaniel.rei.api;
 
 public enum DisplayVisibility {
-    ALWAYS_VISIBLE, CONFIG_OPTIONAL, NEVER_VISIBLE, PASS
+    ALWAYS_VISIBLE,
+    CONFIG_OPTIONAL,
+    NEVER_VISIBLE,
+    PASS
 }
diff --git a/src/main/java/me/shedaniel/rei/api/ItemCheatingMode.java b/src/main/java/me/shedaniel/rei/api/ItemCheatingMode.java
index ba9f73b77..41d5e5ead 100644
--- a/src/main/java/me/shedaniel/rei/api/ItemCheatingMode.java
+++ b/src/main/java/me/shedaniel/rei/api/ItemCheatingMode.java
@@ -1,5 +1,6 @@
 package me.shedaniel.rei.api;
 
 public enum ItemCheatingMode {
-    REI_LIKE, JEI_LIKE;
+    REI_LIKE,
+    JEI_LIKE;
 }
diff --git a/src/main/java/me/shedaniel/rei/api/PluginFunction.java b/src/main/java/me/shedaniel/rei/api/PluginFunction.java
index f69f347d5..67e460a70 100644
--- a/src/main/java/me/shedaniel/rei/api/PluginFunction.java
+++ b/src/main/java/me/shedaniel/rei/api/PluginFunction.java
@@ -1,5 +1,10 @@
 package me.shedaniel.rei.api;
 
 public enum PluginFunction {
-    REGISTER_ITEMS, REGISTER_CATEGORIES, REGISTER_RECIPE_DISPLAYS, REGISTER_SPEED_CRAFT, REGISTER_BOUNDS, REGISTER_OTHERS;
+    REGISTER_ITEMS,
+    REGISTER_CATEGORIES,
+    REGISTER_RECIPE_DISPLAYS,
+    REGISTER_SPEED_CRAFT,
+    REGISTER_BOUNDS,
+    REGISTER_OTHERS;
 }
diff --git a/src/main/java/me/shedaniel/rei/api/RecipeHelper.java b/src/main/java/me/shedaniel/rei/api/RecipeHelper.java
index b7e3f2206..4b0fde018 100644
--- a/src/main/java/me/shedaniel/rei/api/RecipeHelper.java
+++ b/src/main/java/me/shedaniel/rei/api/RecipeHelper.java
@@ -2,6 +2,7 @@ package me.shedaniel.rei.api;
 
 import me.shedaniel.rei.RoughlyEnoughItemsCore;
 import net.minecraft.item.ItemStack;
+import net.minecraft.recipe.Recipe;
 import net.minecraft.recipe.RecipeManager;
 import net.minecraft.util.Identifier;
 
@@ -17,6 +18,8 @@ public interface RecipeHelper {
     
     int getRecipeCount();
     
+    List<Recipe> getVanillaSortedRecipes();
+    
     List<ItemStack> findCraftableByItems(List<ItemStack> inventoryItems);
     
     void registerCategory(RecipeCategory category);
diff --git a/src/main/java/me/shedaniel/rei/client/BaseBoundsHandlerImpl.java b/src/main/java/me/shedaniel/rei/client/BaseBoundsHandlerImpl.java
index 0567f6e16..9b64a5708 100644
--- a/src/main/java/me/shedaniel/rei/client/BaseBoundsHandlerImpl.java
+++ b/src/main/java/me/shedaniel/rei/client/BaseBoundsHandlerImpl.java
@@ -38,12 +38,12 @@ public class BaseBoundsHandlerImpl implements BaseBoundsHandler {
     
     @Override
     public Rectangle getLeftBounds(Screen screen) {
-        return new Rectangle();
+        return DisplayHelper.DisplayBoundsHandler.EMPTY;
     }
     
     @Override
     public Rectangle getRightBounds(Screen screen) {
-        return new Rectangle();
+        return DisplayHelper.DisplayBoundsHandler.EMPTY;
     }
     
     @Override
@@ -52,20 +52,33 @@ public class BaseBoundsHandlerImpl implements BaseBoundsHandler {
     }
     
     @Override
+    public ActionResult isInZone(boolean isOnRightSide, double mouseX, double mouseY) {
+        for(Rectangle zone : getCurrentExclusionZones(MinecraftClient.getInstance().currentScreen.getClass(), isOnRightSide))
+            if (zone.contains(mouseX, mouseY))
+                return ActionResult.FAIL;
+        return ActionResult.PASS;
+    }
+    
+    @Override
     public boolean shouldRecalculateArea(boolean isOnRightSide, Rectangle rectangle) {
         if (lastArea == null) {
-            DisplayHelper.DisplayBoundsHandler handler = RoughlyEnoughItemsCore.getDisplayHelper().getResponsibleBoundsHandler(MinecraftClient.getInstance().currentScreen.getClass());
-            lastArea = getStringFromAreas(isOnRightSide ? handler.getRightBounds(MinecraftClient.getInstance().currentScreen) : handler.getLeftBounds(MinecraftClient.getInstance().currentScreen), getCurrentExclusionZones(MinecraftClient.getInstance().currentScreen.getClass(), isOnRightSide));
+            lastArea = getStringFromCurrent(isOnRightSide);
             return false;
         }
-        DisplayHelper.DisplayBoundsHandler handler = RoughlyEnoughItemsCore.getDisplayHelper().getResponsibleBoundsHandler(MinecraftClient.getInstance().currentScreen.getClass());
-        String fromAreas = getStringFromAreas(isOnRightSide ? handler.getRightBounds(MinecraftClient.getInstance().currentScreen) : handler.getLeftBounds(MinecraftClient.getInstance().currentScreen), getCurrentExclusionZones(MinecraftClient.getInstance().currentScreen.getClass(), isOnRightSide));
-        if (lastArea.contentEquals(fromAreas))
+        if (lastArea.contentEquals(getStringFromCurrent(isOnRightSide)))
             return false;
-        lastArea = fromAreas;
+        lastArea = getStringFromCurrent(isOnRightSide);
         return true;
     }
     
+    private DisplayHelper.DisplayBoundsHandler getHandler() {
+        return RoughlyEnoughItemsCore.getDisplayHelper().getResponsibleBoundsHandler(MinecraftClient.getInstance().currentScreen.getClass());
+    }
+    
+    private String getStringFromCurrent(boolean isOnRightSide) {
+        return getStringFromAreas(isOnRightSide ? getHandler().getRightBounds(MinecraftClient.getInstance().currentScreen) : getHandler().getLeftBounds(MinecraftClient.getInstance().currentScreen), getCurrentExclusionZones(MinecraftClient.getInstance().currentScreen.getClass(), isOnRightSide));
+    }
+    
     @Override
     public ActionResult canItemSlotWidgetFit(boolean isOnRightSide, int left, int top, Screen screen, Rectangle fullBounds) {
         List<Rectangle> currentExclusionZones = getCurrentExclusionZones(MinecraftClient.getInstance().currentScreen.getClass(), isOnRightSide);
diff --git a/src/main/java/me/shedaniel/rei/client/ClientHelper.java b/src/main/java/me/shedaniel/rei/client/ClientHelperImpl.java
index 0a3484786..febe35b4e 100644
--- a/src/main/java/me/shedaniel/rei/client/ClientHelper.java
+++ b/src/main/java/me/shedaniel/rei/client/ClientHelperImpl.java
@@ -5,11 +5,11 @@ import com.google.common.collect.Maps;
 import io.netty.buffer.Unpooled;
 import me.shedaniel.rei.RoughlyEnoughItemsCore;
 import me.shedaniel.rei.RoughlyEnoughItemsNetwork;
+import me.shedaniel.rei.api.ClientHelper;
 import me.shedaniel.rei.api.RecipeCategory;
 import me.shedaniel.rei.api.RecipeDisplay;
 import me.shedaniel.rei.api.RecipeHelper;
 import me.shedaniel.rei.gui.RecipeViewingScreen;
-import net.fabricmc.api.ClientModInitializer;
 import net.fabricmc.fabric.api.client.keybinding.FabricKeyBinding;
 import net.fabricmc.fabric.api.network.ClientSidePacketRegistry;
 import net.fabricmc.fabric.impl.client.keybinding.KeyBindingRegistryImpl;
@@ -34,49 +34,75 @@ import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 
-public class ClientHelper implements ClientModInitializer {
+public class ClientHelperImpl implements ClientHelper {
     
-    private static final Identifier RECIPE_KEYBIND = new Identifier("roughlyenoughitems", "recipe_keybind");
-    private static final Identifier USAGE_KEYBIND = new Identifier("roughlyenoughitems", "usage_keybind");
-    private static final Identifier HIDE_KEYBIND = new Identifier("roughlyenoughitems", "hide_keybind");
-    private static final Map<String, String> MOD_NAME_CACHE = Maps.newHashMap();
-    public static FabricKeyBinding RECIPE, USAGE, HIDE;
+    public static ClientHelperImpl instance;
+    private final Identifier recipeKeybind = new Identifier("roughlyenoughitems", "recipe_keybind");
+    private final Identifier usageKeybind = new Identifier("roughlyenoughitems", "usage_keybind");
+    private final Identifier hideKeybind = new Identifier("roughlyenoughitems", "hide_keybind");
+    private final Identifier previousPageKeybind = new Identifier("roughlyenoughitems", "previous_page");
+    private final Identifier nextPageKeybind = new Identifier("roughlyenoughitems", "next_page");
+    private final Map<String, String> modNameCache = Maps.newHashMap();
+    public FabricKeyBinding recipe, usage, hide, previousPage, nextPage;
     
-    static {
-        MOD_NAME_CACHE.put("minecraft", "Minecraft");
-        MOD_NAME_CACHE.put("c", "Common");
-    }
-    
-    public static String getFormattedModFromItem(Item item) {
+    @Override
+    public String getFormattedModFromItem(Item item) {
         String mod = getModFromItem(item);
         if (mod.equalsIgnoreCase(""))
             return "";
         return "§9§o" + mod;
     }
     
-    public static String getModFromItem(Item item) {
+    @Override
+    public FabricKeyBinding getRecipeKeyBinding() {
+        return recipe;
+    }
+    
+    @Override
+    public FabricKeyBinding getUsageKeyBinding() {
+        return usage;
+    }
+    
+    @Override
+    public FabricKeyBinding getHideKeyBinding() {
+        return hide;
+    }
+    
+    @Override
+    public FabricKeyBinding getPreviousPageKeyBinding() {
+        return previousPage;
+    }
+    
+    @Override
+    public FabricKeyBinding getNextPageKeyBinding() {
+        return nextPage;
+    }
+    
+    public String getModFromItem(Item item) {
         if (item.equals(Items.AIR))
             return "";
         return getModFromIdentifier(Registry.ITEM.getId(item));
     }
     
-    public static String getModFromIdentifier(Identifier identifier) {
+    public String getModFromIdentifier(Identifier identifier) {
         if (identifier == null)
             return "";
-        Optional<String> any = Optional.ofNullable(MOD_NAME_CACHE.getOrDefault(identifier.getNamespace(), null));
+        Optional<String> any = Optional.ofNullable(modNameCache.getOrDefault(identifier.getNamespace(), null));
         if (any.isPresent())
             return any.get();
         String modid = identifier.getNamespace();
         String s = FabricLoader.getInstance().getModContainer(modid).map(ModContainer::getMetadata).map(ModMetadata::getName).orElse(modid);
-        MOD_NAME_CACHE.put(modid, s);
+        modNameCache.put(modid, s);
         return s;
     }
     
-    public static boolean isCheating() {
+    @Override
+    public boolean isCheating() {
         return RoughlyEnoughItemsCore.getConfigManager().getConfig().cheating;
     }
     
-    public static void setCheating(boolean cheating) {
+    @Override
+    public void setCheating(boolean cheating) {
         RoughlyEnoughItemsCore.getConfigManager().getConfig().cheating = cheating;
         try {
             RoughlyEnoughItemsCore.getConfigManager().saveConfig();
@@ -85,7 +111,8 @@ public class ClientHelper implements ClientModInitializer {
         }
     }
     
-    public static void sendDeletePacket() {
+    @Override
+    public void sendDeletePacket() {
         if (ScreenHelper.getLastContainerScreen() instanceof CreativePlayerInventoryScreen) {
             MinecraftClient.getInstance().player.inventory.setCursorStack(ItemStack.EMPTY);
             return;
@@ -93,7 +120,8 @@ public class ClientHelper implements ClientModInitializer {
         ClientSidePacketRegistry.INSTANCE.sendToServer(RoughlyEnoughItemsNetwork.DELETE_ITEMS_PACKET, new PacketByteBuf(Unpooled.buffer()));
     }
     
-    public static boolean tryCheatingStack(ItemStack cheatedStack) {
+    @Override
+    public boolean tryCheatingStack(ItemStack cheatedStack) {
         if (RoughlyEnoughItemsCore.canUsePackets()) {
             try {
                 ClientSidePacketRegistry.INSTANCE.sendToServer(RoughlyEnoughItemsNetwork.CREATE_ITEMS_PACKET, new PacketByteBuf(Unpooled.buffer()).writeItemStack(cheatedStack.copy()));
@@ -108,28 +136,31 @@ public class ClientHelper implements ClientModInitializer {
             String madeUpCommand = og.replaceAll("\\{player_name}", MinecraftClient.getInstance().player.getEntityName()).replaceAll("\\{item_identifier}", identifier.toString()).replaceAll("\\{nbt}", tagMessage).replaceAll("\\{count}", String.valueOf(cheatedStack.getAmount()));
             if (madeUpCommand.length() > 256) {
                 madeUpCommand = og.replaceAll("\\{player_name}", MinecraftClient.getInstance().player.getEntityName()).replaceAll("\\{item_identifier}", identifier.toString()).replaceAll("\\{nbt}", "").replaceAll("\\{count}", String.valueOf(cheatedStack.getAmount()));
-                MinecraftClient.getInstance().player.addChatMessage(new TranslatableTextComponent("text.rei.too_long_nbt"), false);
+                MinecraftClient.getInstance().player.addChatMessage(new TranslatableTextComponent("text.rei" + ".too_long_nbt"), false);
             }
             MinecraftClient.getInstance().player.sendChatMessage(madeUpCommand);
             return true;
         }
     }
     
-    public static boolean executeRecipeKeyBind(ItemStack stack) {
+    @Override
+    public boolean executeRecipeKeyBind(ItemStack stack) {
         Map<RecipeCategory, List<RecipeDisplay>> map = RecipeHelper.getInstance().getRecipesFor(stack);
         if (map.keySet().size() > 0)
             MinecraftClient.getInstance().openScreen(new RecipeViewingScreen(MinecraftClient.getInstance().window, map));
         return map.keySet().size() > 0;
     }
     
-    public static boolean executeUsageKeyBind(ItemStack stack) {
+    @Override
+    public boolean executeUsageKeyBind(ItemStack stack) {
         Map<RecipeCategory, List<RecipeDisplay>> map = RecipeHelper.getInstance().getUsagesFor(stack);
         if (map.keySet().size() > 0)
             MinecraftClient.getInstance().openScreen(new RecipeViewingScreen(MinecraftClient.getInstance().window, map));
         return map.keySet().size() > 0;
     }
     
-    public static List<ItemStack> getInventoryItemsTypes() {
+    @Override
+    public List<ItemStack> getInventoryItemsTypes() {
         List<DefaultedList<ItemStack>> field_7543 = ImmutableList.of(MinecraftClient.getInstance().player.inventory.main, MinecraftClient.getInstance().player.inventory.armor, MinecraftClient.getInstance().player.inventory.offHand);
         List<ItemStack> inventoryStacks = new ArrayList<>();
         field_7543.forEach(itemStacks -> itemStacks.forEach(itemStack -> {
@@ -139,7 +170,8 @@ public class ClientHelper implements ClientModInitializer {
         return inventoryStacks;
     }
     
-    public static boolean executeViewAllRecipesKeyBind() {
+    @Override
+    public boolean executeViewAllRecipesKeyBind() {
         Map<RecipeCategory, List<RecipeDisplay>> map = RecipeHelper.getInstance().getAllRecipes();
         if (map.keySet().size() > 0)
             MinecraftClient.getInstance().openScreen(new RecipeViewingScreen(MinecraftClient.getInstance().window, map));
@@ -148,15 +180,21 @@ public class ClientHelper implements ClientModInitializer {
     
     @Override
     public void onInitializeClient() {
+        ClientHelperImpl.instance = (ClientHelperImpl) this;
         registerFabricKeyBinds();
+        modNameCache.put("minecraft", "Minecraft");
+        modNameCache.put("c", "Common");
     }
     
-    private void registerFabricKeyBinds() {
+    @Override
+    public void registerFabricKeyBinds() {
         String category = "key.rei.category";
         KeyBindingRegistryImpl.INSTANCE.addCategory(category);
-        KeyBindingRegistryImpl.INSTANCE.register(RECIPE = FabricKeyBinding.Builder.create(RECIPE_KEYBIND, InputUtil.Type.KEYSYM, 82, category).build());
-        KeyBindingRegistryImpl.INSTANCE.register(USAGE = FabricKeyBinding.Builder.create(USAGE_KEYBIND, InputUtil.Type.KEYSYM, 85, category).build());
-        KeyBindingRegistryImpl.INSTANCE.register(HIDE = FabricKeyBinding.Builder.create(HIDE_KEYBIND, InputUtil.Type.KEYSYM, 79, category).build());
+        KeyBindingRegistryImpl.INSTANCE.register(recipe = FabricKeyBinding.Builder.create(recipeKeybind, InputUtil.Type.KEYSYM, 82, category).build());
+        KeyBindingRegistryImpl.INSTANCE.register(usage = FabricKeyBinding.Builder.create(usageKeybind, InputUtil.Type.KEYSYM, 85, category).build());
+        KeyBindingRegistryImpl.INSTANCE.register(hide = FabricKeyBinding.Builder.create(hideKeybind, InputUtil.Type.KEYSYM, 79, category).build());
+        KeyBindingRegistryImpl.INSTANCE.register(previousPage = FabricKeyBinding.Builder.create(previousPageKeybind, InputUtil.Type.KEYSYM, -1, category).build());
+        KeyBindingRegistryImpl.INSTANCE.register(nextPage = FabricKeyBinding.Builder.create(nextPageKeybind, InputUtil.Type.KEYSYM, -1, category).build());
     }
     
 }
diff --git a/src/main/java/me/shedaniel/rei/client/ConfigObject.java b/src/main/java/me/shedaniel/rei/client/ConfigObject.java
index 7ee02b5fe..af100f3fc 100644
--- a/src/main/java/me/shedaniel/rei/client/ConfigObject.java
+++ b/src/main/java/me/shedaniel/rei/client/ConfigObject.java
@@ -11,8 +11,7 @@ public class ConfigObject {
     @Comment("The ordering of the items on the item panel.")
     public ItemListOrdering itemListOrdering = ItemListOrdering.registry;
     
-    @Comment("The ordering of the items on the item panel.")
-    public boolean isAscending = true;
+    @Comment("The ordering of the items on the item panel.") public boolean isAscending = true;
     
     @Comment("To toggle the craftable button next to the search field.")
     public boolean enableCraftableOnlyButton = true;
@@ -23,40 +22,34 @@ public class ConfigObject {
     @Comment("The command used in servers to cheat items")
     public String giveCommand = "/give {player_name} {item_identifier}{nbt} {count}";
     
-    @Comment("The command used to change gamemode")
-    public String gamemodeCommand = "/gamemode {gamemode}";
+    @Comment("The command used to change gamemode") public String gamemodeCommand = "/gamemode {gamemode}";
     
-    @Comment("The command used to change weather")
-    public String weatherCommand = "/weather {weather}";
+    @Comment("The command used to change weather") public String weatherCommand = "/weather {weather}";
     
-    @Comment("True: item panel on the left, false: on the right")
-    public boolean mirrorItemPanel = false;
+    @Comment("True: item panel on the left, false: on the right") public boolean mirrorItemPanel = false;
     
     @Comment("To disable REI's default plugin, don't change this unless you understand what you are doing")
     public boolean loadDefaultPlugin = true;
     
-    @Comment("Maximum recipes viewed at one time.")
-    public int maxRecipePerPage = 3;
+    @Comment("Maximum recipes viewed at one time.") public int maxRecipePerPage = 3;
     
-    @Comment("Toggle utils buttons")
-    public boolean showUtilsButtons = false;
+    @Comment("Toggle utils buttons") public boolean showUtilsButtons = false;
     
-    @Comment("Disable Recipe Book")
-    public boolean disableRecipeBook = false;
+    @Comment("Disable Recipe Book") public boolean disableRecipeBook = false;
     
     public boolean preferVisibleRecipes = false;
     
     //    @Comment("Enable support for old REI plugins which uses registerSpeedCraft")
     //    public boolean enableLegacySpeedCraftSupport = false;
     
-    @Comment("Force enable 2019 REI April Fools' joke")
-    public boolean aprilFoolsFish2019 = false;
+    @Comment("Force enable 2019 REI April Fools' joke") public boolean aprilFoolsFish2019 = false;
     
     public ItemCheatingMode itemCheatingMode = ItemCheatingMode.REI_LIKE;
     
     public boolean lightGrayRecipeBorder = false;
     
-    @Comment("The location of choose page dialog, will automatically be set to your last location so there is no need to change this.")
+    @Comment(
+            "The location of choose page dialog, will automatically be set to your last location so there is no need to change this.")
     public RelativePoint choosePageDialogPoint = new RelativePoint(.5, .5);
     
 }
diff --git a/src/main/java/me/shedaniel/rei/client/DisplayHelperImpl.java b/src/main/java/me/shedaniel/rei/client/DisplayHelperImpl.java
index 28c5f5e43..6ab47f79f 100644
--- a/src/main/java/me/shedaniel/rei/client/DisplayHelperImpl.java
+++ b/src/main/java/me/shedaniel/rei/client/DisplayHelperImpl.java
@@ -14,25 +14,21 @@ import java.util.stream.Collectors;
 
 public class DisplayHelperImpl implements DisplayHelper {
     
-    private static final Comparator BOUNDS_HANDLER_COMPARATOR = Comparator.comparingDouble(value -> {
-        if (value instanceof DisplayBoundsHandler)
-            return (double) ((DisplayBoundsHandler) value).getPriority();
-        return -Double.MAX_VALUE;
-    }).reversed();
+    private static final Comparator<DisplayBoundsHandler> BOUNDS_HANDLER_COMPARATOR;
     private static final DisplayBoundsHandler EMPTY = new DisplayBoundsHandler() {
         @Override
         public Class getBaseSupportedClass() {
-            return null;
+            return Object.class;
         }
         
         @Override
         public Rectangle getLeftBounds(Object screen) {
-            return new Rectangle();
+            return DisplayBoundsHandler.EMPTY;
         }
         
         @Override
         public Rectangle getRightBounds(Object screen) {
-            return new Rectangle();
+            return DisplayBoundsHandler.EMPTY;
         }
         
         @Override
@@ -40,30 +36,38 @@ public class DisplayHelperImpl implements DisplayHelper {
             return -10f;
         }
     };
-    private List<DisplayBoundsHandler> screenDisplayBoundsHandlerMap = Lists.newArrayList();
+    
+    static {
+        Comparator<DisplayBoundsHandler> comparator = Comparator.comparingDouble(DisplayBoundsHandler::getPriority);
+        BOUNDS_HANDLER_COMPARATOR = comparator.reversed();
+    }
+    
+    private List<DisplayBoundsHandler> screenDisplayBoundsHandlers = Lists.newArrayList();
     private Map<Class, DisplayBoundsHandler> handlerCache = Maps.newHashMap();
     private BaseBoundsHandler baseBoundsHandler;
     
     @Override
     public List<DisplayBoundsHandler> getSortedBoundsHandlers(Class screenClass) {
-        List<DisplayBoundsHandler> list = Lists.newArrayList(screenDisplayBoundsHandlerMap.stream().filter(handler -> handler.getBaseSupportedClass().isAssignableFrom(screenClass)).collect(Collectors.toList()));
-        list.sort(BOUNDS_HANDLER_COMPARATOR);
-        return list;
+        return screenDisplayBoundsHandlers.stream().filter(handler -> handler.getBaseSupportedClass().isAssignableFrom(screenClass)).sorted(BOUNDS_HANDLER_COMPARATOR).collect(Collectors.toList());
+    }
+    
+    @Override
+    public List<DisplayBoundsHandler> getAllBoundsHandlers() {
+        return screenDisplayBoundsHandlers;
     }
     
     @Override
     public DisplayBoundsHandler getResponsibleBoundsHandler(Class screenClass) {
-        Optional<DisplayBoundsHandler> handler = handlerCache.entrySet().stream().filter(entry -> entry.getKey().equals(screenClass)).map(Map.Entry::getValue).findAny();
-