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  1. JDK
  2. JDK-4878528

Keyboard focus problem

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 1.3.1_01, 1.4.0, 1.4.1, 1.4.2, 1.4.2_07, 5.0
    • Fix Version/s: 6
    • Component/s: client-libs
    • Subcomponent:
    • Resolved In Build:
      b36
    • CPU:
      generic, x86, sparc
    • OS:
      generic, solaris_8, windows_nt, windows_2000, windows_xp

      Description

      Name: rmT116609 Date: 06/13/2003


      FULL PRODUCT VERSION :
      java version "1.4.2-beta"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-beta-b19)
      Java HotSpot(TM) Client VM (build 1.4.2-beta-b19, mixed mode)

      FULL OS VERSION :
      Microsoft Windows XP [verzi^?szßm: 5.1.2600]

      A DESCRIPTION OF THE PROBLEM :
      The keyboard focus disappeard with the closed internal frame. See the test code.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Execute the attached test code.
      1. Selected the Internal frame(click on the header of it or ...)
      2. Selected the Menu/Close menuitem, which close the internal frame
      3. The keyboard focus has been lost. Check the debug lines on the output where is the focus.

      ACTUAL -
      The keyboard focus has been disappeard with closed internal frame.

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      /*
       * FocusTest.java
       *
       * Created on 2003. jM-^Tnius 13., 12:38
       */

      package TEST;

      import java.awt.Component;
      import java.awt.KeyboardFocusManager;
      import java.awt.event.ActionEvent;
      import java.awt.event.ActionListener;
      import java.awt.event.FocusEvent;
      import java.awt.event.FocusListener;
      import javax.swing.JComponent;
      import javax.swing.JFrame;
      import javax.swing.JInternalFrame;
      import javax.swing.JPanel;
      import javax.swing.Timer;


      public class FocusTest extends javax.swing.JFrame {
          
          private JInternalFrame jInternalFrame1;
          /** Creates new form FocusTest */
          public FocusTest() {
              initComponents();
              jInternalFrame1 = new JInternalFrame();
              jInternalFrame1.setVisible(true);
              jInternalFrame1.setBounds(0, 0, 270, 240);
              jInternalFrame1.getContentPane().addFocusListener( new FocusListener() {
                  
                  public void focusGained(FocusEvent e) {
                      System.out.println("contentpane of internal frame GAINED the focus");
                  }
                  
                  public void focusLost(FocusEvent e) {
                      System.out.println("contentpane of internal frame LOST the focus");
                  }
              });
              
              jDesktopPane1.add(jInternalFrame1, javax.swing.JLayeredPane.DEFAULT_LAYER);
              
              Timer timer = new Timer(1500, new ActionListener() {
                  public void actionPerformed(ActionEvent e) {
                      Component comp = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
                      if (comp == null)
                          System.out.println("Focus on NULL");
                      else {
                          Component temp = comp.getParent();
                          while (temp != null && !(temp instanceof JInternalFrame) && !(temp instanceof JFrame))
                              temp = temp.getParent();
                          System.out.println("Focus on "+comp.getClass()+" Parent: "+(temp == null ? "null" : temp.getClass().toString()));
                      }
                  }
              });
              timer.start();
              setSize(400, 300);
              
          }
          
          /** This method is called from within the constructor to
           * initialize the form.
           * WARNING: Do NOT modify this code. The content of this method is
           * always regenerated by the Form Editor.
           */
          private void initComponents() {
              jDesktopPane1 = new javax.swing.JDesktopPane();
              jMenuBar1 = new javax.swing.JMenuBar();
              jMenu1 = new javax.swing.JMenu();
              jMenuItem1 = new javax.swing.JMenuItem();

              addWindowListener(new java.awt.event.WindowAdapter() {
                  public void windowClosing(java.awt.event.WindowEvent evt) {
                      exitForm(evt);
                  }
              });

              getContentPane().add(jDesktopPane1, java.awt.BorderLayout.CENTER);

              jMenu1.setText("Menu");
              jMenuItem1.setText("Close frame");
              jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
                  public void actionPerformed(java.awt.event.ActionEvent evt) {
                      jMenuItem1ActionPerformed(evt);
                  }
              });

              jMenu1.add(jMenuItem1);

              jMenuBar1.add(jMenu1);

              setJMenuBar(jMenuBar1);

              pack();
          }

          private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {
              // Add your handling code here:
              jInternalFrame1.setVisible(false);
              jInternalFrame1.dispose();
              jInternalFrame1 = null;
              System.out.println("ClosED the internal frame");
          }
          
          /** Exit the Application */
          private void exitForm(java.awt.event.WindowEvent evt) {
              System.exit(0);
          }
          
          /**
           * @param args the command line arguments
           */
          public static void main(String args[]) {
              new FocusTest().show();
          }
          
          
          // Variables declaration - do not modify
          private javax.swing.JDesktopPane jDesktopPane1;
          private javax.swing.JMenuItem jMenuItem1;
          private javax.swing.JMenuBar jMenuBar1;
          private javax.swing.JMenu jMenu1;
          // End of variables declaration
       }

      ---------- END SOURCE ----------
      (Review ID: 187979)
      ======================================================================

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              Assignee:
              mbronsonsunw Mike Bronson (Inactive)
              Reporter:
              rmandalasunw Ranjith Mandala (Inactive)
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