[Seaside] HTML/Javascript list and Comet updating it's contents.

[Rob Withers]

I am generally adverse to commenting my code.  This framework you have built 
is certainly enhanced by it.  Thank you for the help, Lukas.  I really liked 
your slides.

Rob

--------------------------------------------------
From: "Lukas Renggli" <renggli at gmail.com>
Sent: Saturday, October 09, 2010 4:49 PM
To: "Seaside - general discussion" <seaside at lists.squeakfoundation.org>
Subject: Re: [Seaside] HTML/Javascript list and Comet updating it's 
contents.

>> So, what is (script jQuery: #messages) doing?
>
> This is the same as
>
>    script jQuery: '#messages'
>
> a query on the DOM element with the ID messages.
>
>> What type of object is the
>> result?
>
> On the Smalltalk side an instance of JQueryInstance.
>
> On the Javascript side a jQuery instance of the matching DOM elements.
>
>> Is the server getting the list of messages from the client?
>
> No, #append: just appends a new item to the list. The list of messages
> is not stored on the server.
>
>> Or is
>> aBlock (a String) and aString being sent to the client and this script is
>> running on the client?
>
> The block is a Seaside render block. It happens on the server, the
> resulting HTML string is sent to the client.
>
>> I am not clear on the sequence of cascaded messages
>> sent: (#children; #sliceFrom:to:, #remove, #end, #append:, #end,
>> #scrollTop:).
>
> #jQuery: defines the query. #children, #sliceFrom:to: refines the
> query. #remove performs the action on the resulting DOM elements. #end
> resets to the original query. Each single method has a detailed method
> comment, look at the implementor (or display it with eCompletion).
>
> These is basic jQuery knowledge, do some of the Javascript/HTML
> tutorials listed here: <http://docs.jquery.com/Tutorials>.
>
> You might also be interested in my jQuery tutorial of ESUG last year
> in Brest. The slides and the video are linked here
> <http://www.seaside.st/documentation/videos>.
>
> Lukas
>
> -- 
> Lukas Renggli
> www.lukas-renggli.ch
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