Bear with me, as the problem I'm encountering seems very arcane.
Hopefully I can describe it well enough that we can determine what the
problem is and fix it.
A few months ago I designed an lightbox style "modal" dialog class
that I call the Dashbox. No one else really uses it but me, I wrote
it to learn more about object oriented programming within the
Prototype framework and it's served my needs to date. I've frequently
used Class.create() to produce subclasses of Dashbox that load (via
the Ajax object) specific files or have specific behaviors, etc.
Dashbox, like any good utility class, provides me some basic
responders to which I can attach functions which create the necessary
behaviors. Two of these responders are afterOpen and afterClose. By
default, the Dashbox uses Prototype.emptyFunction for these responders
and then when a Dashbox instance is created (with the new operator),
custom functions can be attached to the the instance and are called at
appropriate moments in the life time of that instance's operation.
Custom responders are passed as an object to the constructor of an
instance and applied to the instance as follows:
initialize: function(url, custom_responders) {
/* ... other stuff goes here ... */
if(custom_responders) for(responder in custom_responder)
this.responders[responder] = custom_responder[responder];
}
Previously, it was always one instance of the Dashbox--or its
subclasses--on a page at a time, but today, I ran into the need to
display a date-picker dialog (called Dashdate) and some context-
sensitive help (Helpbox). Both of these classes are subclasses of
Dashbox. For a reason that I cannot determine, however, the custom
responders for the class that is instantiated _last_ become the
responders for both instances.
Here's the relevant files:
* Dashbox: http://pastie.org/393317 <-- pastie didn't like the
line lengths in this one, sorry.
* Dashdate: http://pastie.org/393314
* Helpbox: http://pastie.org/393316
* The file which instantiates them: http://pastie.org/393322
At this point, I'm clueless. If you look in Dashdate and Helpbox, you
can see that their afterOpen handler has a Firebug console.log()
statement in it. In the code on the fourth link (the file which
instantiates them) you can see that the date picker is instantiated
last. Therefore, whether the Helpbox's activate is called or the
Datepicker instance's, the dpAfterOpen method is executed.
I feel like I'm not explaining myself well, so I hope this isn't all
clear as mud. Feel free to ask questions cause, for the moment, I'm
completely stymied.
Thanks,
Dave Dashifen Kees
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