The way events are declared and handled is changing:
http://wiki.openlaszlo.org/Event_and_handler_tags
In the current syntax, if you want to have overriding or combining of
handlers, in the class you need to say:
<method event="ondate" name="ondatehandler"> ... </method>
and in your subclass:
<method name="ondatehandler">
super();
...
</method>
In the new syntax, you will be more explicit in the class:
<handler name="ondate" method="ondatehandler" />
<method name="ondatehandler"> ... </method>
the subclass would stay the same.
I'd be interested to know if you find the new syntax more intuitive?
On 28 Dec 2005, at 10:11, Mathieu Guillaume wrote:
What happens when you declare methods event="onstuff" in a class
and in its subclass? I see they're both called, and I seem to
remember I saw something about this in the doc, but I can't find it
again.
Is there anything set about the order in which the methods are called?
In my case, I'm trying to make a somewhat reuseable calendar class
(which uses event="ondate"), and extend it in my application. The
extended class would also use event="ondate", but I need variables
that are set in the superclass's ondate. Am I guaranteed that the
superclass's ondate will execute first, or should I find another
way to do it?
I tried to do it with generating a different event that said "hey,
I'm updated" in the superclass and catch it in my extended classes,
but it didn't work:
<class name="calendar">
<attribute name="date"/>
<method event="oninit">
this.del=new LzDelegate(this,"oncalupdate");
this.del.register(this,"calupdate");
</method>
<method event="ondate">
<!-- lots of stuff -->
this.calupdate.sendEvent();
</method>
</class>
<class name="extendedcal" extends="calendar">
<method event="oncalupdate">
Debug.write("Event: calupdate");
</method>
</class>
but I never got anything in the extendedcal instances, so I suppose
there's something I didn't understand in the way events+delegates
work.
--
Mathieu Guillaume <[EMAIL PROTECTED]>
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