Before exit event

The focusOut event for textinputs fires after focus is lost.
Is there an event that will fire before focus is lost?

if you want the focus back into the same text input , then why not on focus out do validation if it fails pass the focus back to the same component.
i would do
<mx:TextInput id="ti" focusOut="something(ti);"
publci function something(display:DisplayObject):void{
if(fail){
display.setFocus();

Similar Messages

How to detect window close event and do some task before exiting

Hi
Anyone knows how to detect window close event and do some task before exiting ?
Sridhar
Solved!
Go to Solution.
Attachments:
window close event.JPG ‏34 KB

Yes .You can discard the panel close event by passing "TRUE" boolean value to the "discard ?" terminal which is lied in the right side of that panel close(filter) event.& It will work in executables. See attached picture.
Attachments:
Panel Close.JPG ‏12 KB

Mouse Drag in JDialog produces Mouse Enter & Mouse Exit events in JFrame.

Hi, all.
Do I have a misconception here? When I drag the mouse in a modal JDialog, mouseEntered and mouseExited events are being delivered to JComponents in the parent JFrame that currently happens to be beneath that JDialog. I would not have expected any events to be delivered to any component not in the modal JDialog while that JDialog is displayed.
I submitted this as a bug many months ago, and have heard nothing back from Sun, nor can I find anything similar to this in BugTraq.
Here is sample code:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
* This class demonstrates what I believe are TWO bugs in Mouse Event handling in Swing
* 1.1.3_1, 1.1.3_2, 1.1.3_3, and 1.4.0.
* 1) When a MODAL JDialog is being displayed, and the cursor is DRAGGED from the JDialog
*    into and across the parent JFrame, Mouse Enter and Mouse Exit events are given to
*    the parent JFrame and/or it's child components. It is my belief that NO such events
*    should be delivered, that modal dialogs should prevent ANY user interaction with any
*    component NOT in the JDialog. Am I crazy?
*    You can reproduce this simply by running the main() method, then dragging the cursor
*    from the JDialog into and across the JFrame.
* 2) When a MODAL JDialog is being displayed, and the cursor is DRAGGED across the JDialog,
*    Mouse Enter and Mouse Exit events are given to the parent JFrame and/or it's child
*    components. This is in addition to the problem described above.
*    You can reproduce this by dismissing the initial JDialog displayed when the main()
*    method starts up, clicking on the "Perform Action" button in the JFrame, then dragging
*    the cursor around the displayed JDialog.
* The Mouse Enter and Mouse Exit events are reported via System.err.
public class DragTest
    extends JFrame
    public static void main(final String[] p_args)
        new DragTest();
    public DragTest()
        super("JFrame");
        WindowListener l_windowListener = new WindowAdapter() {
            public void windowClosing(final WindowEvent p_evt)
                DragTest.this.dispose();
            public void windowClosed(final WindowEvent p_evt)
                System.exit(0);
        MouseListener l_mouseListener = new MouseAdapter() {
            public void mouseEntered(final MouseEvent p_evt)
                System.err.println(">>> Mouse Entered: " + ((Component)p_evt.getSource()).getName() );
            public void mouseExited(final MouseEvent p_evt)
                System.err.println(">>> Mouse Exited: " + ((Component)p_evt.getSource()).getName() );
        JPanel l_panel1 = new JPanel();
        l_panel1.setLayout( new BorderLayout(50,50) );
        l_panel1.setName("JFrame Panel");
        l_panel1.addMouseListener(l_mouseListener);
        JButton l_button = null;
        l_button = new JButton("JFrame North Button");
        l_button.setName(l_button.getText());
        l_button.addMouseListener(l_mouseListener);
        l_panel1.add(l_button, BorderLayout.NORTH);
        l_button = new JButton("JFrame South Button");
        l_button.setName(l_button.getText());
        l_button.addMouseListener(l_mouseListener);
        l_panel1.add(l_button, BorderLayout.SOUTH);
        l_button = new JButton("JFrame East Button");
        l_button.setName(l_button.getText());
        l_button.addMouseListener(l_mouseListener);
        l_panel1.add(l_button, BorderLayout.EAST);
        l_button = new JButton("JFrame West Button");
        l_button.setName(l_button.getText());
        l_button.addMouseListener(l_mouseListener);
        l_panel1.add(l_button, BorderLayout.WEST);
        l_button = new JButton("JFrame Center Button");
        l_button.setName(l_button.getText());
        l_button.addMouseListener(l_mouseListener);
        l_panel1.add(l_button, BorderLayout.CENTER);
        JButton l_actionButton = l_button;
        Container l_contentPane = this.getContentPane();
        l_contentPane.setLayout( new BorderLayout() );
        l_contentPane.add(l_panel1, BorderLayout.NORTH);
        JPanel l_panel2 = new JPanel();
        l_panel2.setName("JDialog Panel");
        l_panel2.addMouseListener(l_mouseListener);
        l_panel2.setLayout( new BorderLayout(50,50) );
        l_panel2.add( new JButton("JDialog North Button"), BorderLayout.NORTH );
        l_panel2.add( new JButton("JDialog South Button"), BorderLayout.SOUTH );
        l_panel2.add( new JButton("JDialog East Button"),   BorderLayout.EAST   );
        l_panel2.add( new JButton("JDialog West Button"),   BorderLayout.WEST   );
        l_panel2.add( new JButton("JDialog Center Button"), BorderLayout.CENTER );
        final JDialog l_dialog = new JDialog(this, "JDialog", true);
        WindowListener l_windowListener2 = new WindowAdapter() {
            public void windowClosing(WindowEvent p_evt)
                l_dialog.dispose();
        l_dialog.addWindowListener(l_windowListener2);
        l_dialog.setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
        l_dialog.getContentPane().add(l_panel2, BorderLayout.CENTER);
        l_dialog.pack();
        Action l_action = new AbstractAction() {
            { putValue(Action.NAME, "Perform Action (open dialog)"); }
            public void actionPerformed(final ActionEvent p_evt)
                l_dialog.setVisible(true);
        l_actionButton.setAction(l_action);
        this.addWindowListener(l_windowListener);
        this.pack();
        this.setLocation(100,100);
        this.setVisible(true);
        l_dialog.setVisible(true);
}(Too bad blank lines are stripped, eh?)
Thanks in advance for any insights you may be able to provide.
---Mark

I guess we can think of this as one problem. When mouse dragged, JFrame also (Parent) receives events. If i understood correctly, what happens here is, Modal dialog creates its own event pump and Frame will be having its own. See the source code of Dialog's show() method. It uses an interface called Conditional to determine whether to block the events or yield it to parent pump.
Here is the Conditional code and show method code from java.awt.dialog for reference
package java.awt;
* Conditional is used by the EventDispatchThread's message pumps to
* determine if a given pump should continue to run, or should instead exit
* and yield control to the parent pump.
* @version 1.3 02/02/00
* @author David Mendenhall
interface Conditional {
    boolean evaluate();
/////show method
    public void show() {
        if (!isModal()) {
            conditionalShow();
        } else {
            // Set this variable before calling conditionalShow(). That
            // way, if the Dialog is hidden right after being shown, we
            // won't mistakenly block this thread.
            keepBlocking = true;
            if (conditionalShow()) {
                // We have two mechanisms for blocking: 1. If we're on the
                // EventDispatchThread, start a new event pump. 2. If we're
                // on any other thread, call wait() on the treelock.
                if (Toolkit.getEventQueue().isDispatchThread()) {
                    EventDispatchThread dispatchThread =
                        (EventDispatchThread)Thread.currentThread();
                       * pump events, filter out input events for
                       * component not belong to our modal dialog.
                       * we already disabled other components in native code
                       * but because the event is posted from a different
                       * thread so it's possible that there are some events
                       * for other component already posted in the queue
                       * before we decide do modal show.
                    dispatchThread.pumpEventsForHierarchy(new Conditional() {
                        public boolean evaluate() {
                            return keepBlocking && windowClosingException == null;
                    }, this);
                } else {
                    synchronized (getTreeLock()) {
                        while (keepBlocking && windowClosingException == null) {
                            try {
                                getTreeLock().wait();
                            } catch (InterruptedException e) {
                                break;
                if (windowClosingException != null) {
                    windowClosingException.fillInStackTrace();
                    throw windowClosingException;
    }I didn't get exactly what is happening but this may help to think further

How to do something before exit?

hi all
i'm writing a simple db application
i want it to execute the last update on a db table before exit
the code is:
    private void exitForm(java.awt.event.WindowEvent evt) {
        try
            Statement st=tmc.createStatement();
            st.executeUpdate("UPDATE OPERATORI SET LOGGATO=FALSE WHERE OPERATORE='"+user+"'");
            System.out.println("i'm exiting");
            System.exit(0);
        catch(SQLException s)
            s.printStackTrace();
        }when i got the output message "i'm exiting" i thinked that the db was modified, but checking it i saw that nothing changed
i tried the same code without the "System.exit(0);" line in a actionPerformed method of a temporary button that i putted on my form and it worked
so i think that the System.exit(0) call in a certain way arrives before or interrupts the db transition
i want to hide to my users this action, that's the reason for which i wrote my code in such a way!
any hint?
thanx in advance
sandro

Hi Sandro,
I am using databases and i have never had this problem.
But before closing the application, I always close the connections with database.
Why dont you try
private void exitForm(java.awt.event.WindowEvent evt) {
try
Statement st=tmc.createStatement();
st.executeUpdate("UPDATE OPERATORI SET LOGGATO=FALSE WHERE OPERATORE='"+user+"'");
System.out.println("i'm exiting");
tmc.close(); //close the connection
System.exit(0);
catch(SQLException s)
s.printStackTrace();
I hope it works well for you
sergio

Capture exit event

Hi All,
How can I capture the exit event from a canvas component?
I try exitState but it's not working:
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" width="100%" height="100%"
backgroundColor="white" creationPolicy="all" exitState="checkExit()">
private function checkExit():void{
Alert.show("exit");
I try the same removed but it doesn't start the form, it shows the Alert right away.
removedFromState it doesn't work either.
Any ideas?
Thanks
Johnny

Thanks for your reply and help.
I have a menu with many options, each option will open a canvas component thru a viewStack.
When I call the component I item with viewStack.selectedItem = mycomponenIDNumber and fire the init() funciton, now when I click something else in the menu if I'm in a component I want to check something before I leave the component and fire a condition like:
Alert.show("Do you want to Save the updates?","ALERT", Alert.YES|Alert.NO, this, alertClickHandler);
Remove, removed and removeFromState doesn't fire.
Rgds
Johnny

Instance filtering of method entry/exit events in JDI

I've been trying to use the instance filters added to JDI in Java 1.4 without success. JPDA appears to ignore my attempts to add instance filters to MethodEntryRequests and MethodExitRequests. It produces MethodEntryEvents or MethodExitEvents for every method entry or exit that passes the other filters on the event.
I create method exit requests and add instance filters as follows (method entry requests are similar) (obj is an ObjectReference):
     MethodExitRequest mer=erm.createMethodExitRequest();
     mer.addInstanceFilter(obj);
     mer.setSuspendPolicy(EventRequest.SUSPEND_NONE);
     mer.enable();For example, when I create method exit events in this way for a few Strings in the debuggee and then run length() on one of them (in the debuggee), I receive one MethodExitEvent for each String instead of one single event corresponding to the request with the right object in the instance filter.
As I can't find any working example code for instance filters in method entry/exit requests, I can't tell whether I'm doing something wrong or there is a bug in JPDA. Has anyone else had any luck with instance filters?

Before anyone asks, I'd better mention that I get the same problems on Java 1.4.1_02-b06 on SuSE Linux and Solaris 8, Java 1.4.0-1 on Tru64 UNIX and 1.4.1_01-b01 on Debian Linux. I don't think this is an installation-specific or machine-specific problem.

Exit event? Help please...

Hi,
We have a requirement that consists in after filling a field with a value (exit), an existing connection is used to retrieve data to fill automatically some other fields in the current form.
Do you guys know how can I implement this? Any example? JavaScript is needed or there are other options?
Thanks in advance,
Luis

Hi Guys,
Problem solved.
I just copied the event "click" used by the button (XML tab) and adapted it to my text field as an "exit" event. I tried to do it before, but due to the automatic structure created in the form by the "Generate Fields" option, I could not find the correct place in the code to place the event.
Regards,
Luis

Triggering "exit" event of a drop-down list in all instances of a table row

I have a drop-down list in a table row with multiple instances that performs a calculation on the exit event. This calculation draws information from 2 other dropdown lists contained above in non-repeating rows of the same table.
The desired behavior is: should the user change their choices above, all instances of the drop-down list below would perform the "Exit" event script accessing the new values above.
My script is:
RowOptionalCoverage.DdlCoverageType.execEvent("exit");     this works, sort of
It only updates the first instance of RowOptionalCoverage and none of the subsequent instances. The user can "Tab" through the instances and trigger the Exit event for each instance, but this is not a reasonable solution.
I have tried using the resolveNodes method without success. I understand, using the resolveNodes method may be necessary when referencing multiple instances of an object:
this.resolveNodes("RowOptionalCoverage[*].DdlCoverageType[*]").execEvent("exit");     doesn't work
xfa.resolveNodes("RowOptionalCoverage[*].DdlCoverageType[*]").execEvent("exit");      doesn't work
No doubt, I must be using the resolveNodes incorrectly or missing something? Probably something simple.
Any advice is greatly appreciated.
Stephen

PERFECT!!! Works right out of the box!
This has opened my eyes to the essential nature of loops. My form is very large and complex and functions correctly, Yet the coding is lacking in sophistication--no loops, functions, fragments or other code efficiencies. I am teaching myself (with the help here) and I have skipped learning and using some techniques when I could things to work using the limited skill set I have.
Sometimes, I just don't "get it". After I fail a few times, I skip it and try something else. Functions are a great example. I could utilize a bunch of these if I could only write one that works. It is frustrating. If I got one to work, I know could write a ton of them. But, there is some essential part of functions I am missing that's preventing me from having my first success with them. (I think it has to do with not understanding arguments completely).
Anyway, I am overjoyed with the solution you provided and I understand it well enough to be able to use again in other situations.
Thanks again!
Stephen

How to trigger the exit event of a subform?

hi there,
we added some code to the exit event of a subform to do some validation, but we found out that
if the user save the form after filling it and without clicking somewhere outside the subform,
the exit event will not be trigger, so the code will not check ,then the form got saved with errors.
could you pls tell us how to solve this?
br.
zj

Hi,
Instead of writin code in Subform just write the code in exit of the individual field.
thanks,
Amish.

How do I get Iphoto to ask me before merging events?

iphoto used to ask me if I was sure that I wanted events merged. One day, I checked the box that says "Don't ask me again". I shouldn't have done that!!! Now my kids can mix and merge all my events - easily!!!
How do I get iphoto to ask me before merging events?
Thanks in advance for helping me!

Welcome to the Apple Discussions. Delete the iPhoto preference file, com.apple.iPhoto.plist, that resides in your User/Library/Preferences folder and try again.
NOTE: If you're moved your library from its default location in your Home/Pictures folder you will have to point iPhoto to its new location when you next open iPhoto by holding the the Option key. You'll also have to reset the iPhoto's various preferences.
OT

How to show a Canvas screen before exit the midlet

If i want to show a canvas screen after user click exit to quit the midlet (after call the notifyDestroy()), any way to do that? thanks.

Hi,
you have to catch the exit event in the commandAction method and there you will display a YES/No form:
create your YES/NO form:
Form yesNoForm = new Form("Exit?");
yesNoForm.append("You are about to exit the application!Exit?")
yesNoForm.addCommand(new Command("Yes",Command.OK,1));
yesNoForm.addCommand(new Command("Cancel",Command.CANCEL,0));
yesNoForm.setCommandListener(this);
!!!Note you can write your own command classes extended from the Command and add those to yesNoForm, that way you will have a better control on the application.
commandAction(Command c, Displayable d){
if (c.getCommandType() == Command.EXIT) {
display.setCurrent(yesNoForm);
if(c.getCommandType() == Command.OK){
destroyApp(true);
notifyDestroyed();
if(c.getCommandType() == Command.CANCEL){
display.setCurrent(mainForm);
This should work.

How to make iPhoto ask before merging events?

iphoto used to ask me if I was sure that I wanted events merged. One day, I checked the box that says "Don't ask me again". I shouldn't have done that!!! Now my little brother can mix and merge all my events - easily!!!
How do I get iphoto to ask me before merging events?
Thanks in advance.

Try trash the com.apple.iPhoto.plist file from the HD/Users/ Your Name / library / preferences folder.
(On 10.7 or later: Hold the option (or alt) key while clicking on the Go menu in Finder to access the User Library)
(Remember you'll need to reset your User options afterwards. These include minor settings like the window colour and so on. Note: If you've moved your library you'll need to point iPhoto at it again.)
What's the plist file?
For new users: Every application on your Mac has an accompanying plist file. It records certain User choices. For instance, in your favourite Word Processor it remembers your choice of Default Font, on your Web Browser is remembers things like your choice of Home Page. It even recalls what windows you had open last if your app allows you to pick up from where you left off last. The iPhoto plist file remembers things like the location of the Library, your choice of background colour, whether you are running a Referenced or Managed Library, what preferences you have for autosplitting events and so on. Trashing the plist file forces the app to generate a new one on the next launch, and this restores things to the Factory Defaults. Hence, if you've changed any of these things you'll need to reset them. If you haven't, then no bother. Trashing the plist file is Mac troubleshooting 101.

Do i needt to turn off sharing before exiting itunes

I was wondering if I need to turn off home sharing before exiting itunes because the itunesprefs.xml got corrupted ( I guess, because itunes wouldn't exit completely until I deleted the prefs file and itunes created a new prefs file the next time I ran it).

I believe that if someone is looking at your library, they need to "eject" it before you can close iTunes but I'm pretty sure you can leave Home Sharing on before exiting.
I leave it on and I have had no problems at all.

Stopping output tasks properly before exiting a For-loop

Hi,
I've been having some trouble exiting a For-loop conditionally. The problem is that when the loop is stopped conditionally (a button is pressed) the DAQ (NI USB 6353) outputs get stuck to whatever value they were in. I tried stopping the DAQ Assistant output task (1 sample on demand) before exiting the loop but that didn't solve the problem. Should this perhaps be done one iteration before exiting the loop or can it be done in the same iteration round?
What would be the "right" way to exit a for loop with output tasks so that the output signals would be 0V after exiting? I know that I could "force" feed the DAQ Assistant with 0V control before exiting but in this case that would be quite difficult...
Any ideas? Help is appriciated.

Yes, I get it... However at this point I don't think that's an option.
Would this kind of solution work? ( I am not able to test all possible solutions in the real system which is why I would like to get a confirmation first)
The idea is to connect the output of the "Or" port to the "Stop" -ports of the DAQ Assistants in the loop.
Edit. Will the output automatically go to 0V if I just stop the task? I am not really sure about this.
Thank you.
Attachments:
exit-loop.jpg ‏8 KB

How to track application exit event?

I have my swf embeded in Asp.Net. I want to track application exit event. Is there any event which is called when flex application exists or unload or destroyed? I tried application close event but it is not working. I do not want events of browser close or etc because I already tried it.
Thanks,
-Chandu

if you wanted to just close the window all together you could write some Javascript to close the window, then in your flex app call the function when they click the logout button
If you want to actually end it with Actionscript you could try:
public function applicationExit():void {
     var exitingEvent:Event = new Event(Event.EXITING, false, true);
     NativeApplication.nativeApplication.dispatchEvent(exitingEvent);
     if (!exitingEvent.isDefaultPrevented()) {
          NativeApplication.nativeApplication.exit();
Source: http://livedocs.adobe.com/flex/3/html/help.html?content=app_launch_1.html
UKB

Before exit event

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