Made XML Sandbox non-modal, using a glass pane

src/main/java/net/vhati/modmanager/ui/InertPanel.java

@@ -0,0 +1,55 @@
+package net.vhati.modmanager.ui;
+
+import java.awt.Component;
+import java.awt.Cursor;
+import java.awt.KeyEventDispatcher;
+import java.awt.KeyboardFocusManager;
+import java.awt.event.KeyAdapter;
+import java.awt.event.KeyEvent;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+import javax.swing.SwingUtilities;
+
+
+/**
+ * A panel that consumes all mouse/keyboard events, for use as a glass pane.
+ */
+public class InertPanel extends JPanel {
+
+	private KeyEventDispatcher nullDispatcher;
+
+
+	public InertPanel() {
+		super();
+
+		nullDispatcher = new KeyEventDispatcher() {
+			@Override
+			public boolean dispatchKeyEvent( KeyEvent e ) {
+				return InertPanel.this == ( (JFrame)SwingUtilities.getWindowAncestor( (Component)e.getSource() ) ).getGlassPane();
+			}
+		};
+
+    this.addMouseListener(new MouseAdapter() {
+			@Override
+      public void mousePressed( MouseEvent e ) {e.consume();}
+			@Override
+      public void mouseReleased( MouseEvent e ) {e.consume();}
+    });
+
+		this.setCursor(Cursor.getPredefinedCursor( Cursor.WAIT_CURSOR ));
+		this.setOpaque( false );
+	}
+
+
+	@Override
+	public void setVisible( boolean b ) {
+		super.setVisible( b );
+		if ( b ) {
+			KeyboardFocusManager.getCurrentKeyboardFocusManager().addKeyEventDispatcher( nullDispatcher );
+		} else {
+			KeyboardFocusManager.getCurrentKeyboardFocusManager().removeKeyEventDispatcher( nullDispatcher );
+		}
+	}
+}

src/main/java/net/vhati/modmanager/ui/ManagerFrame.java

@@ -72,6 +72,7 @@ import net.vhati.modmanager.core.Report.ReportFormatter;
 import net.vhati.modmanager.json.GrognakCatalogFetcher;
 import net.vhati.modmanager.json.JacksonGrognakCatalogReader;
 import net.vhati.modmanager.ui.ChecklistTableModel;
+import net.vhati.modmanager.ui.InertPanel;
 import net.vhati.modmanager.ui.ModInfoArea;
 import net.vhati.modmanager.ui.ModPatchDialog;
 import net.vhati.modmanager.ui.ModXMLSandbox;
@@ -83,7 +84,7 @@ import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
 
-public class ManagerFrame extends JFrame implements ActionListener, HashObserver, Statusbar {
+public class ManagerFrame extends JFrame implements ActionListener, HashObserver, Nerfable, Statusbar {
 
 	private static final Logger log = LogManager.getLogger(ManagerFrame.class);
 
@@ -100,6 +101,8 @@ public class ManagerFrame extends JFrame implements ActionListener, HashObserver
 	private String appURL;
 	private String appAuthor;
 
+	private NerfListener nerfListener = new NerfListener( this );
+
 	private HashMap<File,String> modFileHashes = new HashMap<File,String>();
 	private ModDB modDB = new ModDB();
 
@@ -319,6 +322,8 @@ public class ManagerFrame extends JFrame implements ActionListener, HashObserver
 		menubar.add( helpMenu );
 		this.setJMenuBar( menubar );
 
+		this.setGlassPane( new InertPanel() );
+
 		this.setContentPane( contentPane );
 		this.pack();
 		this.setMinimumSize( new Dimension( 300, modActionsPanel.getPreferredSize().height+90 ) );
@@ -691,8 +696,11 @@ public class ManagerFrame extends JFrame implements ActionListener, HashObserver
 			File datsDir = new File( config.getProperty( "ftl_dats_path" ) );
 			File dataDatFile = new File( datsDir, "data.dat" );
 
-			ModXMLSandbox sandboxDlg = new ModXMLSandbox( this, dataDatFile );
+			ModXMLSandbox sandboxFrame = new ModXMLSandbox( dataDatFile );
-			sandboxDlg.setVisible( true );
+			sandboxFrame.addWindowListener( nerfListener );
+			sandboxFrame.setSize( 800, 600 );
+			sandboxFrame.setLocationRelativeTo( null );
+			sandboxFrame.setVisible( true );
 		}
 		else if ( source == exitMenuItem ) {
 			setStatusText( "" );
@@ -752,6 +760,37 @@ public class ManagerFrame extends JFrame implements ActionListener, HashObserver
 	}
 
 
+	@Override
+	public void setNerfed( boolean b ) {
+		Component glassPane = this.getGlassPane();
+		if (b) {
+			glassPane.setVisible(true);
+			glassPane.requestFocusInWindow();
+		} else {
+			glassPane.setVisible(false);
+		}
+	}
+
+
+
+	private static class NerfListener extends WindowAdapter {
+		private Nerfable nerfObj;
+
+		public NerfListener( Nerfable nerfObj ) {
+			this.nerfObj = nerfObj;
+		}
+
+		@Override
+		public void windowOpened( WindowEvent e ) {
+			nerfObj.setNerfed( true );
+		}
+		@Override
+		public void windowClosing( WindowEvent e ) {
+			nerfObj.setNerfed( false );
+		}
+	}
+
+
 
 	private static class ModFileFilter implements FileFilter {
 		boolean allowZip;

src/main/java/net/vhati/modmanager/ui/ModXMLSandbox.java

@@ -28,9 +28,9 @@ import javax.swing.Box;
 import javax.swing.BoxLayout;
 import javax.swing.JButton;
 import javax.swing.JComponent;
+import javax.swing.JFrame;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
-import javax.swing.JDialog;
 import javax.swing.JOptionPane;
 import javax.swing.JScrollPane;
 import javax.swing.JSplitPane;
@@ -65,7 +65,10 @@ import org.jdom2.Document;
 import org.jdom2.input.JDOMParseException;
 
 
-public class ModXMLSandbox extends JDialog implements ActionListener {
+/**
+ * A basic text editor to test XML modding.
+ */
+public class ModXMLSandbox extends JFrame implements ActionListener {
 
 	private UndoManager undoManager = new UndoManager();
 	private Document mainDoc = null;
@@ -76,6 +79,7 @@ public class ModXMLSandbox extends JDialog implements ActionListener {
 	private JScrollPane mainScroll;
 	private JScrollPane appendScroll;
 	private JScrollPane resultScroll;
+	private JSplitPane splitPane;
 	private JScrollPane messageScroll;
 
 	private JTextArea mainArea;
@@ -88,8 +92,8 @@ public class ModXMLSandbox extends JDialog implements ActionListener {
 	private JLabel statusLbl;
 
 
-	public ModXMLSandbox( Frame owner, File dataDatFile ) {
+	public ModXMLSandbox( File dataDatFile ) {
-		super( owner, "Mod XML Sandbox", true );
+		super( "Mod XML Sandbox" );
 
 		this.dataDatFile = dataDatFile;
 
@@ -145,7 +149,7 @@ public class ModXMLSandbox extends JDialog implements ActionListener {
 		topPanel.add( areasPane, BorderLayout.CENTER );
 		topPanel.add( ctrlPanel, BorderLayout.SOUTH );
 
-		final JSplitPane splitPane = new JSplitPane( JSplitPane.VERTICAL_SPLIT );
+		splitPane = new JSplitPane( JSplitPane.VERTICAL_SPLIT );
 		splitPane.setTopComponent( topPanel );
 		splitPane.setBottomComponent( messageArea );
 
@@ -272,9 +276,15 @@ public class ModXMLSandbox extends JDialog implements ActionListener {
 		resultArea.addAncestorListener( new FocusAncestorListener( resultArea ) );
 
 		this.pack();
-		this.setSize( 800, 600 );
+	}
-		this.setLocationRelativeTo( null );
 
+
+	@Override
+	public void setVisible( boolean b ) {
+		super.setVisible( b );
+
+		if ( b ) {
+			// Splitpane has to be realized before the divider can be moved.
 			SwingUtilities.invokeLater(new Runnable() {
 				@Override
 				public void run() {
@@ -282,6 +292,7 @@ public class ModXMLSandbox extends JDialog implements ActionListener {
 				}
 			});
 		}
+	}
 
 
 	@Override

src/main/java/net/vhati/modmanager/ui/Nerfable.java

@@ -0,0 +1,16 @@
+package net.vhati.modmanager.ui;
+
+
+/*
+ * An interface to en/disable user interaction.
+ * It was written with JFrames and glass panes in mind.
+ */
+public interface Nerfable {
+
+	/*
+	 * Either nerf or restore user interaction.
+	 *
+	 * @param b the nerfed state
+	 */
+	public void setNerfed( boolean b );
+}