I have just looked at the docs for GClientGeocoder.getLocations (which
is what I assume you are using) and it doesn't appear to be able to take
a context parameter, although I would have though it should have worked
without one.
The workaround you provided is the way to go. There are a couple of
variations on that you could do.
1.) Make the function annonymous
var obj = this;
...
geocoder.getLocations(address, function(response) {obj._pluto(response)});
2.) Use qx.lang.Function.bind. This will make a little more overhead though
geocoder.getLocations(address, qx.lang.Function.bind(obj._pluto, obj));
portableJesus wrote:
>
> You were both right, it was a problem of context:
>
> **** original code *****
>
> // inside an object constructor
>
> .....
>
> luogoCercaButton.addListener("click", function(e) {
> var address = luogoCercaTextField.getValue();
>
> geocoder.getLocations (address, this._pluto);
>
> }, this);
>
> .....
>
> members : {
> _pluto : function ()
> {
> ...
> this._pippo();
> ...
> },
>
> _pippo : function ()
> {
> ...
> }
> }
>
> so I did this modification and now it's workin:
>
> var obj = this;
>
> luogoCercaButton.addListener("click", function(e) {
> var address = luogoCercaTextField.getValue();
>
> geocoder.getLocations (address, geoCallback);
>
> }, this);
>
> function geoCallback (response){
> obj.__pluto(response);
> }
>
>
> Is there a way to do this in a more clean way?
>
> Thank you for help!
>
> *Garofoli Group**
> ANDREA GIAMPIERI*/
> Ufficio C.E.D./
>
> Tel: +39 071 72717703
> E-mail: a.giampi...@...
> <http://n2.nabble.com/user/SendEmail.jtp?type=node&node=2746982&i=0>
> Web: _www.gidea.it_ <http://www.gidea.it> | Web: _www.garofoli.com_
> <http://www.garofoli.com>
>
>
> *"Noggin182 (via Nabble)" <ml-user+38663-1243428...@...
> <http://n2.nabble.com/user/SendEmail.jtp?type=node&node=2746982&i=1>>*
>
> 30/04/2009 14.53
> Per favore, rispondere a
> Post 2746897 on Nabble <ml-node+2746897-1365726...@...
> <http://n2.nabble.com/user/SendEmail.jtp?type=node&node=2746982&i=2>>
>
>
>
> Per
> portableJesus <a.giampi...@...
> <http://n2.nabble.com/user/SendEmail.jtp?type=node&node=2746982&i=3>>
> CC
>
> Oggetto
> Re: [qooxdoo-devel] Simple question on methods
>
>
>
>
>
>
>
>
> Hi,
>
> portableJesus wrote:
> > I'm new to OO Javascript, so please have a little patience :)
> Welcome to the project! You're not alone there, I spent a couple years
> thinking I was quote JavaScript savy before I discovered OO JavaScript.
>
> > What I'm doing wrong?
> There isn't anything wrong with the code that you have provided. It is
> more likely a problem in the way you are calling _pluto, or in the code
> around the call to _pippo.
>
>
> > members : {
> > _pluto : function ()
> > {
> > ...
> > this._pippo();
> > ...
> > },
> >
> > _pippo : function ()
> > {
> > ...
> > }
> > }
> >
> > Result:
> >
> > this._pippo is not a function
>
> It might be the case that you are calling this._pippo() inside an event
> handler but haven't set the context correctly, or (as Jean-Noël
> suggested) you are trying to call a function dirrectly rather than
> creating an instance of the class first. If you could provide more code
> that we should be able to help you better.
>
> > Thank u for help
>
> HTH,
> Matt
>
>
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