Re: [selectors-api] Why have two identical differently named interfaces?

On Wed, 12 Mar 2008 16:27:50 +0100, Boris Zbarsky <bzbarsky@MIT.EDU> wrote:

>
> Anne van Kesteren wrote:
>> The reason for two interfaces is to allow extensions to either going  
>> forward. Though presumably for ECMAScript you can implement them  
>> however you'd like as window.ElementSelector and  
>> window.DocumentSelector should probably not exist. (Just prototype  
>> Element/Document instead.)
>
> Making them not exist is quite a bit of pain in Gecko, for what it's  
> worth.
>
> I guess I could do the two interfaces, but I'm having a hard time seeing  
> different extensions being made to these two interfaces (as opposed to  
> wholly new interfaces being invented, as was done here).

I don't have any opinion about how many interfaces there are or what they  
are called, but I just wanted to point out that if there's one interface  
then extensions for either elements or documents can still be made by  
making a new interface that inherits from the common interface when such  
an extension is needed (compare with e.g. HTMLMediaElement in HTML5).

-- 
Simon Pieters
Opera Software