Axel's suggestion will work, but you need to pass the parameter
class A:
members :
response : null,
ask : function () {
var that = this;
var callback = function(resp) {
that.setAndPrintResponse(resp);
};
util.makeServerRequest(callback)
},
setAndPrintResponse : function (resp) {
this.debug(resp);
this.response = resp;
}
Also have a look at the api for qx.lang.Function.bind. You can think of
it as returning a function pointer where the context is bound to the
object that you passed into the bind function.
HTH,
Matt
Axel wrote:
> Hi aditya,
>
>> Suppose I have the following class A (pseudo-code) :
>> class A:
>> members :
>> response : null,
>> ask : function () { util,makeServerRequest
>> (this.setAndPrintResponse)},
>> setAndPrintResponse : function (resp) {
>> this.debug(resp);
>> this.response = resp;
>> }
>>
>> The "ask" function sends the server a request asynchronously and when
>> the reply is received, prints it to the console and updates the instance
>> variable "response".
>>
>> Unfortunately this doesn't work, because the makeServerRequest is part
>> of a static class and looks like this:
>
> I would try this:
>
> class A:
> members :
> response : null,
> ask : function () {
> var that = this;
> var callback = function() {
> that.setAndPrintResponse();
> };
> util.makeServerRequest(callback)
> },
> setAndPrintResponse : function (resp) {
> this.debug(resp);
> this.response = resp;
> }
>
> see also
> http://qooxdoo.org/documentation/0.8/snippets#problems_with_this_in_event_handlers.
>
> Cheers,
> Axel
>
>
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is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay
ahead of the curve. Join us from November 9-12, 2009. Register now!
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