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Java Forum / General / February 2007Disable ESC on JOptionPane
Hi all, I'm using JOptionPane.showOptionDialog to show a dialog, but I'd like to disable the ESC key, so when the user presses ESC, the dialog will not close. Is there any way to do that? Could somebody give me an example, or give me a link showing the directions on how to do it? thanks in advance Allan Valeriano > I'm using JOptionPane.showOptionDialog to show a dialog, but I'd like > to disable the ESC key, so when the user presses ESC, the dialog will > not close. The ESC key is defined to have the same effect like the Cancel button. All users (including me) expect to be able to cancel a dialog (either by ESC key, or by Cancel button). It would be VERY irritating if the ESC key doesn't work, or if there is no Cancel button. So, why on earth should you want to do that? > Is there any way to do that? Could somebody give me an example, or > give me a link showing the directions on how to do it?  SignatureThomas > The ESC key is defined to have the same effect like the Cancel button. > All users (including me) expect to be able to cancel a dialog (either by > ESC key, or by Cancel button). It would be VERY irritating if the ESC > key doesn't work, or if there is no Cancel button. > So, why on earth should you want to do that? I'd like to do that, because this specific dialog appears only when something goes wrong with the program, and an exception is thrown. On this dialog, the user has the opportunity to send the developers a message with the error and a comment about it, so I want to induce him to do so, not just cancel it by pressing ESC. Allan Valeriano Allan Valeriano wrote On 02/27/07 03:49,: >>The ESC key is defined to have the same effect like the Cancel button. >>All users (including me) expect to be able to cancel a dialog (either by [quoted text clipped - 7 lines] > message with the error and a comment about it, so I want to induce him > to do so, not just cancel it by pressing ESC. Don't muck up the users' controls. How would you like it if somebody remapped your keyboard without your consent? Instead, display this text as part of the JOptionPane's message to the user: !!!FREE BEER FOR A YEAR!!! The makers of thus bug-ridden program are so eager for your feedback about its failure that they have established a lottery: Every month, one failure report is chosen at random, and the person who submitted it receives !!!FREE BEER FOR A YEAR!!! [ I WANT BEER! ] [ cancel ] Not only will you win a lot more friends this way, but you'll find that you have acquired a large all-volunteer Quality Assurance department. SignatureEric.Sosman@sun.com > Don't muck up the users' controls. How would you like > it if somebody remapped your keyboard without your consent? [quoted text clipped - 21 lines] > -- > Eric.Sos...@sun.com Ok, you made me laugh. What about some help now? > > Don't muck up the users' controls. > Ok, you made me laugh. What about some help now? Eric's very first sentence (quoted above) gave you all the help you need. I.e. don't do it. It may be convenient for /you/ to disable ESC, but it is not convenient for your users -- and they matter much more than you do. Why not add an application option (which ***MUST*** default to false) which means: send the report automatically unless the user explicitly asks for it not to be sent ? -- chris Allan Valeriano wrote On 02/27/07 14:35,: >> Don't muck up the users' controls. How would you like >>it if somebody remapped your keyboard without your consent? [quoted text clipped - 20 lines] > > Ok, you made me laugh. What about some help now? I'm serious: If you want people to do something for you, it is more effective in the long run to coddle them than to coerce them. Have you ever heard the saying "You can catch more flies with honey than with vinegar?" Now, your reward needn't be !!!FREE BEER FOR A YEAR!!! You can reward people with all kinds of things material and immaterial. Hanging on the wall to my right is a picture frame holding a check from Donald E. Knuth, my reward for spotting a trivial error in a pre-print of one of his books, a check that cost him very little to send me (I wonder what fraction of his reward checks ever get cashed?). You can offer your users recognition, or your heartfealt thanks, or a free weekend in Poughkeepsie (second prize: two weekends); you needn't blow your budget. Be creative! Two things to remember, though: First, you are expecting this feedback to give you something of value, so you ought to be willing to spend something, however little, to gain it. Second, if you offer only tyranny the people will eventually turn against you. Carrots, not sticks! SignatureEric.Sosman@sun.com > Allan Valeriano wrote On 02/27/07 14:35,: > [quoted text clipped - 47 lines] > -- > Eric.Sos...@sun.com Does all of that means you guys don't know how to do that, or you're just trying to sound like my parents? The decision about disabling the ESC key or not is not up to me. I wouldn't do that on a personal project, but that's not my personal project, and I HAVE to do that. But thanks anyway. Allan Valeriano ... > Does all of that means you guys don't know how to do that, or you're > just trying to sound like my parents? c) Attempting to prevent yet another abominable GUI. >...The decision about disabling the > ESC key or not is not up to me. I wouldn't do that on a personal > project, but that's not my personal project, and I HAVE to do that. You always have choices. If your choice is to continue developing an abominable GUI for the money (fame, fortune, whatever-who-cares), that is *your* *choice*. > But thanks anyway. 'Any time.' Andrew T. >> Two things to remember, though: First, you are expecting >>this feedback to give you something of value, so you ought [quoted text clipped - 4 lines] > Does all of that means you guys don't know how to do that, or you're > just trying to sound like my parents? I didn't want to sound like your parents. Actually I don't know how to disable the ESC key (at least not in a JOptionPane). With some effort it might be possible in a JDialog. > The decision about disabling the > ESC key or not is not up to me. I wouldn't do that on a personal > project, but that's not my personal project, and I HAVE to do that. If I were you, I would tell your boss, that forcing the dialog to OK, is likely to make your users angry, hence generating a financial disadvantage in the long-term. By the way: Did you ever get Microsoft's famous bug-report-dialog (after an application-crash) asking you whether you want to send diagnostic material to Microsoft? I use to cancel that dialog simply for security reasons (because I don't know exactly which data would be sent). > But thanks anyway. SignatureThomas Allan Valeriano wrote On 02/28/07 06:12,: > [...] > [quoted text clipped - 3 lines] > project, but that's not my personal project, and I HAVE to do that. > But thanks anyway. It means I don't know how to do it, don't want to know how to do it, and would resist the suggestion to do it. Oh, yeah, it also means I like to sound like your parents. (In light of the parental authority you seek to exert over your users, I don't think you can object too strenuously ...) The new piece of information you've provided is that the idea of disabling the users' controls is not yours but someone else's. Perhaps you might bring to his or her notice some of the opinions expressed on this thread; the fact that sentiment so far is *unanimous* disapproval may provide a clue to how well the software will be accepted when released. Or perhaps the users are a captive audience with no power to refuse software they don't like: If so, I'm sorry for them. "There is nothing wrong with your television set. Do not attempt to adjust the picture. We are controlling the transmission. If we wish to make it louder, we will bring up the volume. If we wish to make it softer, we will tune it to a whisper. We will control the horizontal. We will control the vertical. We can roll the image; make it flutter. We can change the focus to a soft blur or sharpen it to crystal clarity. For the next hour, sit quietly and we will control all that you see and hear." SignatureEric.Sosman@sun.com Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. 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