!7

import javax.swing.plaf.InternalFrameUI;
import javax.swing.plaf.basic.BasicInternalFrameUI;

module SeparateDesktopPaneSpike > DynSingleFunctionWithPrintLog {
  transient JDesktopPane desktopPane;
  transient JComponent northPane; // frame title

  void doIt {
    if (desktopPane != null) ret with moveBack();
    final JInternalFrame myFrame = cast dm_frame();
    if (myFrame == null) ret;
    desktopPane = jDesktopPane();
    autoFixDesktopPane(desktopPane);
    showFrame("Separate Frame", desktopPane);
    swing {
      removeFromParent(myFrame);
      onResizeAndNow(desktopPane, r {
        myFrame.setBounds(0, 0, desktopPane.getWidth(), desktopPane.getHeight())
      });
      desktopPane.add(myFrame);
      myFrame.setMaximum(true);
      myFrame.setMaximizable(false);
      myFrame.setClosable(false);
      myFrame.setIconifiable(false);
      InternalFrameUI ui = myFrame.getUI();
      if (ui cast BasicInternalFrameUI) {
        northPane = ui.getNorthPane();
        ui.setNorthPane(null);
      }
    }
  }
  
  void moveBack ctex {
    if (desktopPane == null) ret;
    final JInternalFrame myFrame = cast dm_frame();
    removeFromParent(myFrame);
    dm_desktopPane().add(myFrame);
    fixInternalFrame(myFrame);
    myFrame.setSelected(true);
    myFrame.toFront();
    myFrame.setMaximum(false);
    myFrame.setMaximizable(true);
    myFrame.setClosable(true);
    myFrame.setIconifiable(true);
    InternalFrameUI ui = myFrame.getUI();
    if (ui cast BasicInternalFrameUI) {
      ui.setNorthPane(northPane);
    }
    disposeFrame(desktopPane);
    desktopPane = null;
  }
  
  void cleanMeUp {
    disposeFrame(desktopPane);
    desktopPane = null;
  }
}