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  1. JDK
  2. JDK-6384991

TrayIcon ActionListener called at wrong time

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 6
    • Fix Version/s: 9
    • Component/s: client-libs
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b120
    • CPU:
      x86
    • OS:
      linux

      Description

      FULL PRODUCT VERSION :
      java version "1.6.0-rc"
      Java(TM) 2 Runtime Environment, Standard Edition (build 1.6.0-rc-b71)
      Java HotSpot(TM) 64-Bit Server VM (build 1.6.0-rc-b71, mixed mode)


      ADDITIONAL OS VERSION INFORMATION :
      Linux helium 2.6.12-10-amd64-generic #1 Mon Jan 16 17:16:24 UTC 2006 x86_64 GNU/Linux
      Windows XP


      A DESCRIPTION OF THE PROBLEM :
      All the native "tray icons" on my Ubuntu system perform their action when I single-click on them. A Java TrayIcon, though, doesn't respond until I double-click.

      STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
      Compile and run the test case.

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      Single-clicking on the tray icon should say "ouch!".
      ACTUAL -
      I have to double-click before I see "ouch!".

      REPRODUCIBILITY :
      This bug can be reproduced always.

      ---------- BEGIN SOURCE ----------
      import java.awt.*;
      import java.awt.event.*;
      import java.awt.image.*;
      import javax.swing.*;

      public class SystemTrayTest {
              private TrayIcon trayIcon;
              private BufferedImage image;

              public static void main(String[] args) {
                      new SystemTrayTest();
              }

              public SystemTrayTest() {
                      if (SystemTray.isSupported()) {
                              SystemTray tray = SystemTray.getSystemTray();
                              Dimension size = tray.getTrayIconSize();
                              image = new BufferedImage(size.width, size.height, BufferedImage.TYPE_INT_RGB);
                              ActionListener listener = new ActionListener() {
                                      public void actionPerformed(ActionEvent e) {
                                              System.out.println("Ouch!");
                                      }
                              };
                              trayIcon = new TrayIcon(image, "test");
                              trayIcon.addActionListener(listener);
                              try {
                                      tray.add(trayIcon);
                              } catch (AWTException ex) {
                                      ex.printStackTrace();
                              }
                              Timer timer = new Timer(50, new ActionListener() {
                                      public void actionPerformed(ActionEvent e) {
                                              updateImage();
                                      }
                              });
                              timer.start();
                      } else {
                              System.out.println("no system tray!");
                      }
              }

              int i = 0;

              private void updateImage() {
                      Graphics2D g = image.createGraphics();
                      g.setColor(new Color(i, i, i));
                      i = (i + 1) % 256;
                      g.fillRect(0, 0, image.getWidth(), image.getHeight());
                      trayIcon.setImage(image);
                      trayIcon.setToolTip("Value: " + i);
              }
      }

      ---------- END SOURCE ----------

      CUSTOMER SUBMITTED WORKAROUND :
      If you add a MouseListener instead, you can use mouseClicked to perform an action on single click, but to avoid Java applications feeling non-native, the ActionListener behavior should be fixed.

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            Assignee:
            arapte Ambarish Rapte
            Reporter:
            rmandalasunw Ranjith Mandala (Inactive)
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