IJ/plugins/MacAdapter.source

package ij.plugin;
import ij.plugin.*;
import ij.*;
import ij.io.*;
import com.apple.eawt.*;
import java.util.Vector;

/** This Mac-specific plugin is designed to handle the “About ImageJ",
   Preferences and “Quit ImageJ" commands in the ImageJ menu, and to
   open files dropped on ImageJ.app and to open double-clicked files
   with creator code "imgJ". With Java 8, the “About ImageJ" and
   “Quit ImageJ” commands work without MacAdapter.
*/
public class MacAdapter implements PlugIn, ApplicationListener, Runnable {
   static Vector paths = new Vector();

   public void run(String arg) {
      Application app = new Application();
      app.setEnabledPreferencesMenu(true);
      app.addApplicationListener(this);
   }
    
   public void handleAbout(ApplicationEvent event) {
      IJ.doCommand("About ImageJ...");
      event.setHandled(true);
   }

   public void handleOpenFile(ApplicationEvent event) {
      paths.add(event.getFilename());
      Thread thread = new Thread(this, "Open");
      thread.setPriority(thread.getPriority()-1);
      thread.start();
   }

   public void handlePreferences(ApplicationEvent event) {
      IJ.error("The ImageJ preferences are in the Edit>Options menu.");
   }

   public void handleQuit(ApplicationEvent event) {
      new Executer("Quit", null); // works with the CommandListener
      //IJ.getInstance().quit();
   }
  
    public void run() {
        if (paths.size() > 0) {
         (new Opener()).openAndAddToRecent((String) paths.remove(0));
      }
    }

   public void handleOpenApplication(ApplicationEvent event) {}
   public void handleReOpenApplication(ApplicationEvent event) {}
   public void handlePrintFile(ApplicationEvent event) {}

}