Support Mac Drop-on-Dock file events

source/net/filebot/Main.java

@@ -232,6 +232,7 @@ public class Main {
 			MacAppUtilities.initializeApplication();
 			MacAppUtilities.setWindowCanFullScreen(frame);
 			MacAppUtilities.setDefaultMenuBar(FileBotMenuBar.createHelp());
+			MacAppUtilities.setOpenFileHandler(openFiles -> eventBus.post(new FileTransferable(openFiles)));
 		} else if (isUbuntuApp()) {
 			// Ubuntu specific configuration
 			String options = System.getenv("JAVA_TOOL_OPTIONS");

source/net/filebot/mac/MacAppUtilities.java

@@ -11,6 +11,7 @@ import java.io.File;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
+import java.util.function.Consumer;
 import java.util.logging.Level;
 
 import javax.swing.JMenuBar;
@@ -135,6 +136,14 @@ public class MacAppUtilities {
 		}
 	}
 
+	public static void setOpenFileHandler(Consumer<List<File>> handler) {
+		try {
+			Application.getApplication().setOpenFileHandler(evt -> handler.accept(evt.getFiles()));
+		} catch (Throwable t) {
+			debug.log(Level.WARNING, t.getMessage(), t);
+		}
+	}
+
 	public static void initializeApplication() {
 		// improved UI defaults
 		UIManager.put("TitledBorder.border", UIManager.getBorder("InsetBorder.aquaVariant"));

source/net/filebot/ui/MainFrame.java

@@ -179,7 +179,7 @@ public class MainFrame extends JFrame {
 			if (builder != null) {
 				if (builder.equals(selectedBuilder)) {
 					selectedPanel = panel;
-				} else {
+				} else if (panel.isVisible()) {
 					panel.setVisible(false);
 					eventBus.unregister(panel);
 				}