[Freeswitch-users] collectInput does not call callback function

[Grmt]

Some clarification from a quick inspection of the code:

The callback function can be a generic function and possibly be used by
other functions that specify a callbackfunction: it can also capture
"events". So callbackfunction can be called with two different types: "dtmf"
or "events". collectInput will result calling your callbackfunction with
type="dtmf". Checking for "digits" is indeed useless ...

Note that the last argument(s) of collectInput are optional.


What is that second argument?
It should be: "an object dtmf which turns as arg parameter in callback
function."

(I'm guessing a bit here, because I don't know javascript or
mod_spidermonkey, and don't know about the quotes and I didn't try it out
and I did only a quick inspection of the code).


Garmt 

-----Original Message-----
From: freeswitch-users-bounces at lists.freeswitch.org
[mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Kamen
Sent: Sunday, 29 May, 2011 17:39
To: freeswitch-users at lists.freeswitch.org
Subject: Re: [Freeswitch-users] collectInput does not call callback function

Good point grmt!

But that is where I am getting confused.  What is that second argument? 
According to collectInput description in wiki (
http://wiki.freeswitch.org/wiki/Session_collectInput
http://wiki.freeswitch.org/wiki/Session_collectInput ) it is a
"callbackArguments" which in the example given is the last argument (is it?
because no more explanation is given):

function mycb( session, type, data, arg )

So I take that "dtmf" of the collectInput is arg of the callback function.

session.collectInput( mycb, "dtmf", 3000, 0)

But why is it a string type in the example?  Isn't dtmf defined as an object
and then used in callback function as an object?
arg.digits += data.digit;

At the same time in callback function example type parameter is apparently
expected to be a string "dtmf". Is it a coincidence or I am missing
something here? If collectInput second parameter is string "dtmf" then it
also looks that in callback function it is apparently a second parameter
(type). So what is it?  Is it an object dtmf which turns as arg parameter in
callback function, or it is a string which in callback function turns into
type parameter?  I took it should be a string turning into "type" of
callback function, so it does not matter what string is as long as it is the
same.  So I made it "digit".  

If I am missing something here, I'd really appreciate if someone let me
know.  I also tried it to be just an object (without quotes, in spite of the
example), or followed the example exactly.  In any case the callback is not
happening - the first line of my callback function is a console prompt,
which is not printed. Thus is my question.

Regards,

Sergei Kamen




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