How to stop user from generating more events?

Question

I am developing a java swing desktop application. The dialog form has an ok and cancel button. When the user clicks ok button the application does some processing. How can I stop user from clicking ok again before the event on ok button has finished executing. Also, i dont want the user to able to press the cancel button till ok has finished executed. Any help will be highly appreciated.

kleopatra · Answer 1 · 2011-11-15T09:40:18.850

Enablement management is an integral part of UI logic. Action helps you doing so:

 Action action = new AbstractAction("myAction") {

      public void actionPerformed(ActionEvent e) {
           setEnabled(false);
           doPerform();
           setEnabled(true);
      }
 };
 button.setAction(action);

Beware: long running task must not be executed on the EDT, so this is for short-term only, to prevent the second or so click having an effect

Edit

just noticed that you tagged the question with jsr296, then it's even easier: you can tag a method of your presentation model as @Action and bind its enabled property to a property of the model

@Action (enabledProperty == "idle")
public void processOk() {
    setIdle(false);
    doStuff;
    setIdle(true);
}

Plus there is support (much debated, but useable) for Tasks: basically SwingWorker with fine-grained beanified life-cycle support

score 1 · Answer 2 · answered Nov 15 '11 at 09:39

1

If you want to disable all the controls, then I'd suggest using a GlassPane. See here for more info: http://docs.oracle.com/javase/tutorial/uiswing/components/rootpane.html

answered Nov 15 '11 at 09:39

vaughandroid

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score 0 · Answer 3 · answered Nov 15 '11 at 08:38

0

The easiest way is to disable the button just after clicking it , and when the action performed is complete then re-enable it.

answered Nov 15 '11 at 08:38

pheromix

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But what is the case when there are many buttons on my dialog, i will have to continuously enable and disable and it might become a maintenance nightmare. There should be a more graceful way to do it. – Will Nov 15 '11 at 08:41

score 0 · Answer 4 · answered Nov 15 '11 at 08:41

0

You can disable your button like yourButton.setEnabled(false); during your processing method and enable it again when it finishes.

answered Nov 15 '11 at 08:41

Petr Mensik

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please see the comment to pheromix, I have added above – Will Nov 15 '11 at 08:42
actually .. no, don't fiddle with button state directly, instead configure it with an Action and do the state management there – kleopatra Nov 15 '11 at 09:14

score 0 · Answer 5 · answered Nov 15 '11 at 09:25

0

It seems that what you want is something like a waiting cursor.

answered Nov 15 '11 at 09:25

Francisco Puga

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How to stop user from generating more events?

5 Answers5