Re: [CSSOM View] Extensions to Element.scrollLeft and Element.scrollTop are not valid WebIDL from Boris Zbarsky on 2014-07-31 (www-style@w3.org from July 2014)

From: Boris Zbarsky <bzbarsky@MIT.EDU>
Date: Wed, 30 Jul 2014 22:48:21 -0400
To: www-style@w3.org
Message-ID: <53D9AE75.3010101@mit.edu>

On 7/30/14, 5:45 PM, Tab Atkins Jr. wrote:
> I don't think this signature is quite right.  It requires you to set
> both x and y, while setting the attributes lets you do only one or the
> other if you want.

Note that the signature could just make x and y optional, but that still 
means needing to pass undefined when you want to not scroll in the 
corresponding direction.

> I'd prefer subclassing ScrollOptions into containing top/left members,
> and having scrollTo just take a ScrollOptions object.  Give top/left a
> default of null

Why?  Just have missing values mean "no scrolling"; no need for null.

-Boris

Received on Thursday, 31 July 2014 02:48:49 UTC