How to center Dialog over Applet?

A quick question.... When I create a Dialog in an Applet, I have to create a "dummy" frame to be the parent/owner of the Dialog. As a result, when I display the Dialog, it shows up in the upper-left corner of the screen. How do I use a Dialog in an Applet so that it displays centered over the Applet?
Thanks,
Nordman

I have to create a "dummy" frame to be the
parent/owner of the Dialog.No. you do not. You can use the browser frame.
In the applet you can get it like this:
Frame browserFrame;
Component comp= this;
while (! (comp instanceof Frame))
comp = comp.getParent();
browserFrame = (Frame)comp;you can also use setLocationOnScreen() to set the dialogs position. To set it relative to the applet or the browserFrame, you call getLocationOnScreen on those, and calculate whatever position you want.
Ragnvald Barth
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Hello, we are trying to accomplish the same thing that is mentioned in this post from Metalink. I've searched for a solution and hope someone here can help. Instead of restating the issue I think David Wilson does a good job of explaining what is needed. Can anyone please suggest a possible solution?
From: David Wilton 07-Oct-05 01:08
Subject: How to tell embedded jinitator applet is still running when window closed
How to tell embedded jinitator applet is still running when window closed
Hi,
We run an oracle 10g forms application through 9iAS over an intranet. All users are running windows 2000 professional.
We run separate frame = true but I would like to switch to separate frame = false
With separate frame = true if the user clicks the outer windows "X" close button (forms mdi window) the user is prompted to save changes before the application ends.
BUT
when using separate frame = false
If the user clicks the upper window "X" button (no longer form mdi window but regular browser window) the window and application is abruptly closed.
I'm interested in using a onbeforeunload function to confirm if the user wants to close the window. This would be placed in the basejini.htm file. This could always ask if the user wants to exit or not. If they click OK then the window closes but if they click "Cancel" you are returned to the forms application exactly where you left. something like event.returnvalue="do you really want to exit?";
However if the user exited using the normal exit form method then the applet is already closed before the onbeforeunoad event fires and there is nothing to go back to and I want the window to close automatically. This is accomplished using close.html file in post forms trigger.
So what I want and what I think many may also want is the check if the embedded applet is still running and if so prompt the user to return to the application or continue to close. Of course If the applet is no longer running then just close because there is no reason confirm closing anymore.
Does anyone have a html/JavaScript solution that can be placed in the jinitiator.htm file? or similar?
Thank you
David
[email protected]
From: Andrew Lenton 07-Oct-05 08:58
Subject: Re : How to tell embedded jinitator applet is still running when window closed
I don't know if this is exactly what you are after but you can add the following to the top of your basejini.htm file and it should prompt the user before exiting the IE window.
<BODY %HTMLbodyAttrs%>
%HTMLbeforeForm%
<SCRIPT>

</SCRIPT>
From: Oracle, mohammed pasha 07-Oct-05 09:55
Subject: Re : How to tell embedded jinitator applet is still running when window closed
David,
Well I could not understand your complete requirement.
Refer to Note.201481.1 How to Close the Browser Window When Closing Forms And How to Simulate SeparateFrame By Javascript
Note.115905.1 How to Close Browser Window When Closing Webforms Applet
Kind Regards,
Anwar
From: David Wilton 07-Oct-05 14:37
Subject: Re : How to tell embedded jinitator applet is still running when window closed
Thank you for your reply and yes you did not understand my question fully.
Sorry if this is a long reply
I am able to close the browser window using information in notes 115905.1 and 201481.1, this is not the issue. We implemented this several years ago. It is workable for both separate frame = true or false.
It is most important to not allow the user to end their forms application by closing the windows browser, they must close using normal form exit commands.
What I want is to have separate frame = false, the big drawback to this option is the user can exit the application and bypass all forms code by pressing the windows "X" close button. This is why we need the code as just provided by Andrew Lenton above in this thread.
BUT Andrew's code will always prompt the user before closing the window and I do not want that. I want the user to be prompted only under scenario 2 listed below.
Here's the 2 case scenario for exiting the application.
1. If the user closes properly and uses exit form which fires all normal form triggers including post_form with it's call to close.html file.
All uncommitted changes are saved or rollback and the users session is ended normally both on the database and in the application server.
All browser windows will close, great all is good. And without Andrew's code the window will close but with Andrew's code the user will be prompted to close or not, if they select Cancel the window will remain but the applet has already ended so why prompt? ...This is what I want to avoid.
2. In the forms app. if the user clicks the windows "X" close button with uncommitted changes. The browser just closes the changes are rollback without prompting the user to save. The users sessions are now lost and still running in the database and application server until they are timed out.
If I use Andrew's code then the user will be prompted to continue to close or go back, if they click Cancel to go back then focus returns to the forms application and the user can continue to work. If the user clicks OK then the window closes and unfortunately their sessions are still lost until timed out.
So what I desire is to add to Andrew's code to check if the embedded applet is still running and prompt the user to close or not accordingly.
Something like:
Basejini.htm like
</HEAD>
<SCRIPT LANGUAGE="JavaScript">
function maximizeWindow()
window.moveTo(0,0);
window.resizeTo(screen.availWidth,screen.availHeight);
function confirm(){
If(document.embeddedapplet.closed())
Win.opener = self;
win.close();
Else if
event.returnValue = "Closing Forms Application. OK to continue?";
</SCRIPT>
<BODY %HTMLbodyAttrs%, onload="maximizeWindow()", onbeforeunload="confirm()">
%HTMLbeforeForm%
I hope this explains my requirements.
David
From: Oracle, Evelene Raechel 10-Oct-05 06:45
Subject: Re : How to tell embedded jinitator applet is still running when window closed
Hi,
Note.199928.1 How to Alert User on Closing Client's Browser Window in Webforms
Regards,
Rachel
From: David Wilton 11-Oct-05 17:40
Subject: Re : How to tell embedded jinitator applet is still running when window closed
I'm sorry this is not helpful at all.
Note 199928.1 is only an alert which does not stop the closing of the window and still displays as an alert if the user does close properly using exit form ... so why would you want to display the alert then?
This is exaclty what I do not want and why I want to determine if the applet is still running before displaying any kind of message.
David
From: Oracle, Evelene Raechel 17-Oct-05 12:23
Subject: Re : How to tell embedded jinitator applet is still running when window closed
Closing thread.
Thanks,

Hello,
I had the same issue last year - wanting to provide a warning on closing the browser, but only if the Forms session is still running. The approach I took is described below, see also the thread where I originally posted this at Closing brower window
Hi there,I've had a similar requirement - or rather, the two conflicting requirements: to warn when the browser is being closed, but for the app to be able to close the browser without a warning being fired.
To always provide a warning when someone (the user or the Forms app) tries to go to a different page (e.g. your close.htm), use Javascript like:
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if(appletRunning==true) {
msg="Closing this window or navigating to another page will end your SomeGreatApp session.";
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You'll notice I first check an 'appletRunning' variable before displaying the warning. This Javascript variable is set to true by my app when it starts up, using an embedded Javabean that calls out to Javascript. Once that variable is set to true, then the warning will be displayed if the user tries to shut the browser by clicking on the 'x' button, or to go to a different URL.
When my app is shutting down, it uses the same Javabean to set appletRunning back to false. It then navigates to a close.htm - which will be done without a warning being displayed.
See Re: How can a Javabean call Javascript function of the basejpi.html?? for example code on how to call Javascript from a bean embedded in your Forms app.
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