Smalltalk › Frameworks & Tools › Seaside › Seaside General

how to use WAFormDecoration

_‹ Previous Topic Next Topic _›

Classic

List

Threaded

5 messages Options

Frank Sukhu

how to use WAFormDecoration

Greetings,

I am trying to figure out how to use WAFormDecoration ( I am trying to complete exercise 34 in Lukas Renggli's tutorial - a great tutorial). The only example in my image that I could find that uses WAFormDecoration is WAFormDialog but it does not really help my understanding.

Are there any examples that illustrate how to use aWAFormDecoration?

Many thanks,

Frank

_______________________________________________
Seaside mailing list
[hidden email]
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

Lukas Renggli

Re: how to use WAFormDecoration

> I am trying to figure out how to use WAFormDecoration ( I am trying to
> complete exercise 34 in Lukas Renggli's tutorial - a great tutorial).

Thanks ;-)

> The
> only example in my image that I could find that uses WAFormDecoration is
> WAFormDialog but it does not really help my understanding.

Hi Frank,

I guess exercise 34 is about adding decoration to a component (I don't
exactly know because I don't have the exercises ready). So what you
probably want to do is to decorate your editor with a form and with
buttons, exactly what WAFormDecoration is there for.

Add something like the following code to the #initialize method of
your component:

SomeComponent>>initialize
super initialize.
self addDecoration: (WAFormDecoration new
buttons: #( ok cancel );
yourself)

The setter #buttons defines the button-selectors that will be called
on your component, this means you should also implement
SomeComponent>>ok and SomeComponent>>cancel accordingly.

Hope this helps,
Lukas

--
Lukas Renggli
http://www.lukas-renggli.ch
_______________________________________________
Seaside mailing list
[hidden email]
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

Frank Sukhu

Re: how to use WAFormDecoration

In reply to this post by Frank Sukhu

Thanks for the explanation. I have inplemented the messages STPlayEdit>>ok and STPlayEdit>>cancel but I get a doesNotUnderstand when I run it. Here is the stack trace that I get:

STEditPlay(Object)>>doesNotUnderstand: 'ok'

self a STEditPlay

temps

aMessage ok

inst vars

decoration a WAStateHolder(a WAAnswerHandler)

MessageSend>>value

self MessageSend('ok' -> a STEditPlay)

temps

inst vars

receiver a STEditPlay

selector 'ok'

arguments #()

WAActionCallback>>evaluateWithArgument:

self a WAActionCallback

temps

anObject 'Ok'

inst vars

context a WARenderingContext

owner a WAFormDecoration

key '4'

block MessageSend('ok' -> a STEditPlay)

I have been digging into the code to try to figure out what could be going wrong, after all, it seems pretty simple, but so far I cannot explain why the call to my STPlayEdit>>ok method fails.

Any pointers would be greatly appreciated.

Thanks,

Frank

_______________________________________________
Seaside mailing list
[hidden email]
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

Lukas Renggli

Re: Re: how to use WAFormDecoration

> selector 'ok'

Could it be that your selector is the string 'ok' instead of the symbol #ok?

Cheers,
Lukas

--
Lukas Renggli
http://www.lukas-renggli.ch
_______________________________________________
Seaside mailing list
[hidden email]
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside

Frank Sukhu

Re: how to use WAFormDecoration

In reply to this post by Frank Sukhu

How embarassing, I have found my problem and it was a typo on my part. All I can say is sorry and thanks. Things now work perfectly.

... Frank

_______________________________________________
Seaside mailing list
[hidden email]
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside