On 16 December 2010 16:36, Luke <[email protected]> wrote:
> Hi,
>
> if you define a Class like
>
> ----------------------------------
> var TestClass = Class.create({
> initialize: function(element) {
> element = $(element);
> this.doFunkyStuffWithElement(element)
> return element;
> },
> doFunkyStuffWithElement: function(element) { log("funky stuff
> here") }
> });
> ----------------------------------
>
> and you instantiate that Class
>
> var myObject = new TestClass();
>
> is there a way I can change it so (while namespacing my Class-Code so
> Prototype's Class will remain untouched) that instantiation of that
> class will return something different than what Prototype returns (in
> my case a DOM-Object that has been extended with custom Methods)?
>
>
> ---
> Why I want to do this: I'm working on a site where you can create
> really simple webpages by adding, editing, and removing elements on
> your page. To structure my code I make use of prototype's dom-
> extending nature and its way of class-inheritance:
> There is a base class for elements on the page which has methods for
> editing and removing that object and so on. I subclass this base-class
> for specific elements where I implement the specific editing/removing/
> whatever-code. Now to map my functionality to the elements on the
> page, I extend the DOM-Elements which you can edit/etc with the
> methods and properties of the class, leaving out unnecessary
> constructors etc.
>
> But it is always a little annoying to extend an object with a class,
> and then fetch that object again to work with it:
>
> ----------------------------------
> new EditablePicture($('the_element_I_extend'));
> var my_element = $('the_element_I_extend');
> my_element.do_something();
> ----------------------------------
>
> it would be nice to be able to do something like this:
>
> ----------------------------------
> var my_element = new EditablePicture($('the_element_I_extend'));
> my_element.do_something();
> ----------------------------------
>
> Is that kind of stuff even possible?
>
> Thank you
> Lukas
>
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>
Yep - I think so. Look at around line 80 of prototype.js
function klass() {
return this.initialize.apply(this, arguments);
}
The return is something I've been using since May 2008 with all the
releases and updates since then.
I've not had any issues with my code or with scripty with it.
--
Richard Quadling
Twitter : EE : Zend
@RQuadling : e-e.com/M_248814.html : bit.ly/9O8vFY
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