Hi Eugene,
To catch Enter and Escape keys on the Alert you can do the following to
extend UIAlert class:
protected void prepareAlertDialog(final JDialog arg0) {
KeyStroke enter = KeyStroke.getKeyStroke(KeyEvent.VK_ENTER,
0);
arg0.getRootPane().registerKeyboardAction(new ActionListener()
{
public void actionPerformed(java.awt.event.ActionEvent e)
{
System.out.println("Enter pressed");
}}, enter, JComponent.WHEN_IN_FOCUSED_WINDOW);
KeyStroke esc = KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0);
arg0.getRootPane().registerKeyboardAction(new ActionListener()
{
public void actionPerformed(java.awt.event.ActionEvent e)
{
System.out.println("Esc pressed");
}}, esc, JComponent.WHEN_IN_FOCUSED_WINDOW);
}
What action do you want to take on Enter key? If you would like to mean
the Enter key press == click of Ok button then then you can do something
like this:
protected void prepareAlertDialog(final JDialog arg0) {
JOptionPane optionPane =
(JOptionPane)arg0.getContentPane().getComponent(0);
JPanel panel = (JPanel)optionPane.getComponent(1);
JButton button = (JButton)panel.getComponent(0);
if (button.getText().equals("Ok")) {
arg0.getRootPane().setDefaultButton(button);
}
}
BTW, for faster and guaranteed response to your posts please consider
subscribing to ULC Premium Support.
Thanks and regards,
Janak
-----------------------------------------
Janak Mulani
email: [email protected]
url: http://www.canoo.com
Beyond AJAX - Java Rich Internet Applications
http://www.canoo.com/ulc
-----------------------------------------
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of
> Eugene Coelho
> Sent: Friday, February 06, 2009 1:32 PM
> To: [email protected]
> Subject: [ULC-developer] Adding a key listener to ULCAlert
>
> Hi,
>
> I have a scenario where i need to handle user pressing enter
> key when a
> ULCAlert alert is shown.
>
> I tried the following .... but it didnt work .. any
> suggestions to make
> it work ?
>
> ----
>
> Client Part
>
>
> package com.xxxx.xxx.extension.client;
>
> import java.awt.event.KeyEvent;
> import java.awt.event.KeyListener;
>
> import javax.swing.JDialog;
> import javax.swing.JOptionPane;
>
> import com.ulcjava.base.client.UIAlert;
>
> public class UICustomAlert extends UIAlert {
>
>
> public void performAction() {
> this.fireWindowClosingULC();
> }
>
> protected void postInitializeState() {
> super.postInitializeState();
> }
>
> private class HandleEnterKeyListener implements KeyListener {
>
> public void keyPressed(KeyEvent e) {
> int code = e.getKeyCode();
> if(code == KeyEvent.VK_ESCAPE){
> // Key pressed is the ESCAPE key. Hide this Dialog.
>
> }
> else if(code == KeyEvent.VK_ENTER){
> // Key pressed is the ENTER key.
> // Redefine performEnterAction() in subclasses
> to respond
> to depressing the ENTER key.
> performAction();
>
> }
> }
>
> public void keyReleased(KeyEvent arg0) {
>
> }
>
> public void keyTyped(KeyEvent arg0) {
>
> }
>
> }
>
> protected void prepareAlertDialog(JDialog arg0) {
> JOptionPane optionPane =
> (JOptionPane)arg0.getContentPane().getComponent(0);
> KeyListener[] keyListener = optionPane.getKeyListeners();
> for (int i=0;i<keyListener.length;i++) {
> optionPane.removeKeyListener(keyListener[i]);
> }
> optionPane.addKeyListener(new HandleEnterKeyListener());
> }
>
> }
>
> ----
>
> Server Part
>
> package com.xxxx.xxx.extension.server;
>
> import com.ulcjava.base.application.ULCAlert;
> import com.ulcjava.base.application.ULCRootPane;
>
> public class ULCCustomAlert extends ULCAlert {
>
> private static final long serialVersionUID = 1L;
>
> public ULCCustomAlert(ULCRootPane rootPane, String
> loginfailed_title, String login_failed_message, String button_retry,
> String button_quit) {
> super(rootPane, loginfailed_title, login_failed_message,
> button_retry, button_quit);
> }
>
> protected String typeString() {
> return "com.isfsdc.wwm.extension.client.UICustomAlert";
> }
>
>
>
> }
>
>
> _______________________________________________
> ULC-developer mailing list
> [email protected]
> http://lists.canoo.com/mailman/listinfo/ulc-developer
>
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