Rails spinoffs - Nov 2007 - Extending DOM elements addressed by "this"

I have a function that needs to be attached to a bunch of text fields
when the page loads.  I would like to use the Prototype methods that
are added to DOM elements by using the $() function, but I in the
function it refers to things with "this".  For example,
this.style.borderColor.

Is there a way to extend elements from the kind of scope I am looking
at? For example, is there a way to do $(this)?

Thanks for any help.


--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Spinoffs" group.
To post to this group, send email to
rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-spinoffs-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-spinoffs?hl=en
-~----------~----~----~----~------~----~------~--~---

On 04/11/2007, bgetting
<brian-tB76j2tlwt5qMpX8nAm8aq7InAxgj2Y1@public.gmane.org>
wrote:
>
> I have a function that needs to be attached to a bunch of text fields
> when the page loads.  I would like to use the Prototype methods that
> are added to DOM elements by using the $() function, but I in the
> function it refers to things with "this".  For example,
> this.style.borderColor.
>
> Is there a way to extend elements from the kind of scope I am looking
> at? For example, is there a way to do $(this)?
>
> Thanks for any help.
>
>
> >
>
Is it ALL text fields?

If so, something like this ...

Element.addMethods ( ''SELECT'', {
	selectValue : function(element, s_Value) {
		element = $(element);
		element.selectedIndex =
$A(element.options).pluck(''value'').indexOf(s_Value);
		return element;
	}
} );


I''m adding a new method to my SELECT tags.

$(''selectCity'').selectValue(''Plymouth'');

Will make the option whose value is Plymouth the select option.

No "this" as element is the correct thing to talk to.



-- 
-----
Richard Quadling
Zend Certified Engineer : http://zend.com/zce.php?c=ZEND002498&r=213474731
"Standing on the shoulders of some very clever giants!"

--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Spinoffs" group.
To post to this group, send email to
rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-spinoffs-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-spinoffs?hl=en
-~----------~----~----~----~------~----~------~--~---

Thanks, Richard.

I''m going to look into that today, but after reviewing the API
documentation I think you are right on with that solution.  Thanks for
your help.


--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Spinoffs" group.
To post to this group, send email to
rubyonrails-spinoffs-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
To unsubscribe from this group, send email to
rubyonrails-spinoffs-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
For more options, visit this group at
http://groups.google.com/group/rubyonrails-spinoffs?hl=en
-~----------~----~----~----~------~----~------~--~---