Implement support for JEI R and U keys, fixes #484

src/main/java/com/raoulvdberge/refinedstorage/gui/GuiBase.java

@@ -66,6 +66,10 @@ public abstract class GuiBase extends GuiContainer {
         this.ySize = height;
     }
 
+    public Scrollbar getScrollbar() {
+        return scrollbar;
+    }
+
     @Override
     public void initGui() {
         super.initGui();

src/main/java/com/raoulvdberge/refinedstorage/gui/grid/GuiGrid.java

@@ -257,7 +257,7 @@ public class GuiGrid extends GuiBase {
         return slotNumber >= 0;
     }
 
-    private boolean isOverSlotArea(int mouseX, int mouseY) {
+    public boolean isOverSlotArea(int mouseX, int mouseY) {
         return inBounds(7, 19, 162, 18 * getVisibleRows(), mouseX, mouseY);
     }
 

src/main/java/com/raoulvdberge/refinedstorage/gui/grid/stack/ClientStackFluid.java

@@ -50,6 +50,11 @@ public class ClientStackFluid implements IClientStack {
         gui.drawQuantity(x, y, RSUtils.QUANTITY_FORMATTER.format((float) stack.amount / 1000F));
     }
 
+    @Override
+    public Object getIngredient() {
+        return stack;
+    }
+
     @Override
     public boolean equals(Object obj) {
         return obj instanceof ClientStackFluid && ((ClientStackFluid) obj).getStack().isFluidEqual(stack);

src/main/java/com/raoulvdberge/refinedstorage/gui/grid/stack/ClientStackItem.java

@@ -88,6 +88,11 @@ public class ClientStackItem implements IClientStack {
         gui.drawItem(x, y, stack, true, getQuantityForDisplay(isOverWithShift));
     }
 
+    @Override
+    public Object getIngredient() {
+        return stack;
+    }
+
     @Override
     public boolean equals(Object obj) {
         return obj instanceof IClientStack && ((ClientStackItem) obj).getHash() == hash;

src/main/java/com/raoulvdberge/refinedstorage/gui/grid/stack/IClientStack.java

@@ -14,4 +14,6 @@ public interface IClientStack {
     int getQuantity();
 
     void draw(GuiBase gui, int x, int y, boolean isOverWithShift);
+
+    Object getIngredient();
 }

src/main/java/com/raoulvdberge/refinedstorage/integration/jei/GuiHandlerGrid.java

@@ -0,0 +1,44 @@
+package com.raoulvdberge.refinedstorage.integration.jei;
+
+import com.raoulvdberge.refinedstorage.gui.grid.GuiGrid;
+import mezz.jei.api.gui.IAdvancedGuiHandler;
+
+import javax.annotation.Nullable;
+import java.awt.*;
+import java.util.List;
+
+public class GuiHandlerGrid implements IAdvancedGuiHandler<GuiGrid> {
+    @Override
+    public Class<GuiGrid> getGuiContainerClass() {
+        return GuiGrid.class;
+    }
+
+    @Nullable
+    @Override
+    public List<Rectangle> getGuiExtraAreas(GuiGrid guiContainer) {
+        return null;
+    }
+
+    @Nullable
+    @Override
+    public Object getIngredientUnderMouse(GuiGrid guiContainer, int mouseX, int mouseY) {
+        mouseX -= guiContainer.getGuiLeft();
+        mouseY -= guiContainer.getGuiTop();
+
+        if (guiContainer.isOverSlotArea(mouseX, mouseY)) {
+            mouseX -= 7;
+            mouseY -= 19;
+
+            int x = mouseX / 18;
+            int y = mouseY / 18;
+
+            y += guiContainer.getScrollbar().getOffset();
+
+            int slot = y * 9 + x;
+
+            return slot >= 0 && slot < GuiGrid.STACKS.size() ? GuiGrid.STACKS.get(slot).getIngredient() : null;
+        }
+
+        return null;
+    }
+}

src/main/java/com/raoulvdberge/refinedstorage/integration/jei/RSJEIPlugin.java

@@ -29,6 +29,8 @@ public class RSJEIPlugin extends BlankModPlugin {
         registry.addRecipes(RecipeMakerSolderer.getRecipes());
 
         registry.addRecipeCategoryCraftingItem(new ItemStack(RSBlocks.SOLDERER), RecipeCategorySolderer.ID);
+
+        registry.addAdvancedGuiHandlers(new GuiHandlerGrid());
     }
 
     @Override