P T,
Thanks for responding. Now that mention it I do remember reading that
adding an event handler didn't supplant the super's handler. I also had
looked at the page you mentioned but had not paid too much attention to
it because it said this was a suggested change to the language and I am
just getting started up the learning curve.
But the behavior I am seeing doesn't mesh with what you are saying. Not
sure if this is my limited understanding or some kind of bug. Following
is a simple application. When I click in the field the text in the field
is selected. If the "onmousedown" handler is commented out then the
insertion point is set which is what I would expect.
<?xml version="1.0" encoding="UTF-8" ?>
<canvas>
<inputtext name="theField" text="This is the text for the field.">
<method event="onmousedown">
</method>
</inputtext>
</canvas>
Again any feeback is appreciated,
Daniel..
P T Withington wrote:
[cc-ing the doc guy]
This page may be informative.
http://wiki.openlaszlo.org/Event_and_handler_tags
It is implemented in dev.
Specifically to your question, you don't have to call the
superclass's handler, because handlers don't get overridden, they
'accumulate' and all will be called. If you want to override the
behavior of a handler, you need to handle with a named method and
override that method instead.
I'm cc-ing the doc guy, because I think this is a common confusion
about events that I hope the new event and handler tags will make
less confusing. We need to make sure we explicate that in the doc
for them...
On 11 Jan 2006, at 16:33, Daniel Pool wrote:
I am looking at event handling and I can't figure something out. I
was trying to dig through the source for LFC to understand it but
had troubles accessing files via subversion and now the repository
is being upgraded so I can't look there at the moment.
What I want is to be able to have a handler for an object and have
that handler call the superclasses event handler for the same event.
Specifically I want to know when a field (which is derived from
LzInputText) receives a mouse-click. But I still want the field to
do whatever it was going to do with the click. Or maybe what I need
to understand is how to pass the event on to the underlying flash
text field, but that seems less desirable.
More generally any advice on how to start understanding the
internals of LFC would be helpful and appreciated.
Thanks,
Daniel.
_______________________________________________
Laszlo-user mailing list
[email protected]
http://www.openlaszlo.org/mailman/listinfo/laszlo-user
_______________________________________________
Laszlo-user mailing list
[email protected]
http://www.openlaszlo.org/mailman/listinfo/laszlo-user
