Hi,
using events is a very sexy way to do this and qooxdoo-like and you
will have a nice loose link.
Another way is to use callbacks and interfaces that define callback
methods directly.
Benefits: code is more object orientied (ok...let´s say: more
java-like), debugging with "step-into" is more easy.
Disadvantage: you have to set the callback method and the callback
context (e.g. using a property).
Best regards
Robert
>>> Nick Glencross <nick.glencr...@gmail.com> 7/20/2010 9:37 >>>
Hello, welcome to the group.
(I don't know if you directly extended qx.core.object, but if you have
you might find it better to extend a container, such as a
Composite/VBox)
To answer your question, you probably want to do this by creating an
event on your Login box, and have the Main Window attach a listener to
it. Doing it this way means that the Login Box doesn't need to 'know'
which component to notify when the user logs in.
To do this, add a section like this to your login box:
events :
{
/** Event emitted when the user logs in */
"loggedIn": "qx.event.type.Data"
}
Then in your login code you can
this.fireDataEvent ('loggedIn',
BLAH);
where BLAH would be some data which the main window might need to know
(like who the user is).
Then when the main window creates the login box, it can addListener
for the event, and retrieve the BLAH value using getData().
Have a look at
http://demo.qooxdoo.org/current/apiviewer/#qx.bom.Cookie
for Qooxdoo support for cookies.
Hope that helps!
Nick
p.s. (Shameless plug) If you take a look at the screencast at
http://www.pismosoftware.co.uk/products.php (about a minute in) you'll
see exactly this technique used for the password box that opens.
On 20 July 2010 17:06, Ricardo Ferreira
<ricardo.ferre...@dibconsulting.com> wrote:
>
> Hi,
>
> I'm developing an application (or trying.. :P) in qooxdoo, but I have
a problem related to the "extend".
>
> I have built a login screen and another screen (let us call the
"mainwindow") with a toolbar, etc. Both extending the "qx.core.object".
> Now, what I need to do is call the screen mainwindow when the login
is success. What's the best way for doing this?
>
> And another question, I would like to store some information in a
cookie or in a session. So when the user click in the "refresh" button
it won't need to do the login again if it already had logged in.
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