Name: yyT116575 Date: 12/04/2000


java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0)
Java HotSpot(TM) Client VM (build 1.3.0, mixed mode)


When selecting a Menu Item in a popup, the action listender that's
added to the menu item is not called. Here's a simple program
for demonstration:

Note, actionPerformed is never called when the MenuItem is clicked.

import java.awt.*;
import java.awt.event.*;

public class PopupBug extends Frame {
    private PopupBugCanvas fpc;

    public PopupBug() {
        fpc = new PopupBugCanvas();

        add(fpc);

        /*
        ScrollPane pane = new ScrollPane();
        pane.setSize(400,400);
        pane.add(fpc);
        add(pane);
        */
    }

    public static void main(String[] args) {
        PopupBug fp = new PopupBug();

        fp.pack();
        fp.show();
    }
}

class PopupBugCanvas extends Canvas implements ActionListener {
    public PopupMenu popup;

    public PopupBugCanvas() {
        this.enableEvents(AWTEvent.MOUSE_EVENT_MASK);

        setSize(400,400);

        String[] labels =
            new String[] {
                "Test Button 1"
            };

        String[] commands =
            new String[] {
                "c1"
            };

        popup = new PopupMenu();

        int i;

        for(i=0; i < labels.length; i++) {
            MenuItem mi = new MenuItem(labels[i]);
            mi.setActionCommand(commands[i]);
            mi.addActionListener(this);
            popup.add(mi);
        }

        this.add(popup);
    }

    public void paint(Graphics g) {
        Color cl = new Color(0xff,0,0);

        setBackground(cl);
        g.drawString("right click", 20, 20);
    }

    public void processMouseEvent(MouseEvent e) {
        if (e.isPopupTrigger()) {
            popup.show(this, e.getX(), e.getY());
        }
        else if (e.getID() == MouseEvent.MOUSE_PRESSED) {
            System.err.println("In mouse_pressed\n");
        }
        else super.processMouseEvent(e);
    }

    public void actionPerformed(ActionEvent e) {
        String command = e.getActionCommand();
        System.err.println("command = "+command+"\n");

        if (command.equals("c1")) {
            System.err.println("command 1\n");
        }
        else if (command.equals("c2")) {
            System.err.println("command 2\n");
        }
    }
}
(Review ID: 113098)
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