feat: copy screenshot image to clipboard

src/client/java/dev/spiritstudios/snapper/mixin/ScreenshotRecorderMixin.java

@@ -1,15 +1,26 @@
 package dev.spiritstudios.snapper.mixin;
 
-import com.llamalad7.mixinextras.injector.ModifyExpressionValue;
-import com.llamalad7.mixinextras.injector.wrapoperation.WrapOperation;
+import com.llamalad7.mixinextras.sugar.Local;
+import dev.spiritstudios.snapper.mixinsupport.ImageTransferable;
+import net.minecraft.client.gl.Framebuffer;
 import net.minecraft.client.texture.NativeImage;
 import net.minecraft.client.util.ScreenshotRecorder;
 import net.minecraft.text.Text;
+import net.minecraft.util.Util;
+import org.jetbrains.annotations.NotNull;
 import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Unique;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.datatransfer.Clipboard;
+//import java.awt.datatransfer.Tra
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.Transferable;
+import java.awt.datatransfer.UnsupportedFlavorException;
 import java.io.File;
 import java.io.IOException;
 import java.util.function.Consumer;
@@ -28,4 +39,15 @@ private static void lookBeforeYouLeap(NativeImage nativeImage, File screenshotFi
         screenshotFile.getParentFile().mkdirs();
         screenshotFile.createNewFile();
     }
+
+    @Inject(
+            method = "method_1661",
+            at = @At(value = "INVOKE", target = "Lnet/minecraft/text/Text;literal(Ljava/lang/String;)Lnet/minecraft/text/MutableText;", shift = At.Shift.AFTER)
+    )
+    private static void saveWrittenFileToClipboard(NativeImage nativeImage, File screenshotFile, Consumer<Text> messageReceiver, CallbackInfo ci) throws IOException {
+        if (!screenshotFile.getAbsolutePath().contains("/panorama/")) {
+            Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
+            clipboard.setContents(new ImageTransferable(ImageIO.read(screenshotFile)), null);
+        }
+    }
 }

src/client/java/dev/spiritstudios/snapper/mixinsupport/ImageTransferable.java

@@ -0,0 +1,36 @@
+package dev.spiritstudios.snapper.mixinsupport;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.awt.*;
+import java.awt.datatransfer.DataFlavor;
+import java.awt.datatransfer.Transferable;
+import java.awt.datatransfer.UnsupportedFlavorException;
+import java.io.IOException;
+
+public class ImageTransferable implements Transferable {
+    private static final DataFlavor[] flavors = {DataFlavor.imageFlavor};
+
+    private final Image image;
+
+    public ImageTransferable(Image im) {
+        this.image = im;
+    }
+
+    @Override
+    public DataFlavor[] getTransferDataFlavors() {
+        return flavors;
+    }
+
+    @Override
+    public boolean isDataFlavorSupported(DataFlavor flavor) {
+        return flavor.equals(DataFlavor.imageFlavor);
+    }
+
+    @NotNull
+    @Override
+    public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {
+        if (!isDataFlavorSupported(flavor)) throw new UnsupportedFlavorException(flavor);
+        return image;
+    }
+}