如何禁用鼠标单击按钮动作事件？

Question

Is there a way I can disable mouse click ? In the panel there are different components and for some of the Button Click events, I want to disable the mouse click. I mean the click of the mouse doesn't have any effect on the components. I can disable using the setEnabled() function but I don't want to do that way.

Is there any way I can disable the mouse click ?

Situation :

private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {  
       //..disable the mouse click on each component present inside the panel
}

Answer 1

You can add an extended ActionListener to all the buttons like this:

public abstract class ExtendedActionListener implements ActionListener{

    private static boolean disabled = false;

    public static void setDisabled(boolean disabled){
        ExtendedActionListener.disabled  = disabled;
    }

    @Override
    public final void actionPerformed(ActionEvent e){

        if(disabled)
            return;

        doSomething;

    }
}

And now just disable all the ActionListeners by calling the method setDisabled(false) . The Button visual behavior doesn't change at all, but nothing happens, when you click on it.

If the visual click behaviour doesn't matter, then you can just remove the MouseListeners.

Answer 2

You can create a button group like this:

public class SingleSelectionButtonGroup {

    private final List<JButton> buttons;

    public static SingleSelectionButtonGroup group(List<JButton> buttons) {
        return new SingleSelectionButtonGroup(buttons);
    }

    public static SingleSelectionButtonGroup group(JButton...buttons) {
        return new SingleSelectionButtonGroup(Arrays.asList(buttons));
    }

    private SingleSelectionButtonGroup(List<JButton> buttons) {
        this.buttons = new ArrayList<JButton>(buttons);
        setupListener();
    }

    private void setupListener() {
        ActionListener listener = new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                SingleSelectionButtonGroup.this.disableAllExcept((JButton) e.getSource());
            }
        };

        for (JButton button : buttons) {
            button.addActionListener(listener);
        }
    }

    private void disableAllExcept(JButton clickedButton) {
        for (JButton button : buttons) {
            if (!clickedButton.equals(button)) {
                button.setEnabled(false);
            }
        }
    }

}

And then uses it with a collection of buttons that you want to group:

public class Application {

    public void run() {
        final JFrame frame = new JFrame("test");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(new Dimension(400, 300));

        final JPanel pane = new JPanel();

        List<JButton> buttons = new ArrayList<JButton>();
        String[] texts = {"A", "B", "C"};

        for (String text : texts) {
            JButton button = new JButton(text);
            buttons.add(button);
            pane.add(button);
        }

        SingleSelectionButtonGroup.group(buttons);      
        frame.getContentPane().add(pane);
        frame.setVisible(true);
    }

    public static void main(String[] args) {
        new Application().run();
    }

}

Answer 3

you should use one common class of your listener and have static method for turn listener turn on and off

public abstract class BaseMouseListener implements ActionListener{

private static boolean active = true;
public static void setActive(boolean active){
    BaseMouseListener.active = active;
}

protected abstract void doPerformAction(ActionEvent e);

@Override
public final void actionPerformed(ActionEvent e){
    if(active){
        doPerformAction(e);
    }
}
}

your listeners would have to implements doPerformedAction()

Answer 4

Add empty mouse listener. This will "disable" the click because it will not have any effect.