[whatwg] Taking a look at overflow: pan

fantasai fantasai.lists at inkedblade.net
Tue Jul 27 21:08:12 PDT 2010

On 07/27/2010 07:17 PM, Charles Pritchard wrote:
> Hey all,
> I've been working on a project which implements tiled scrolling...
> Today from Ajaxian I saw the YUI 3 update, included in it is an
> implementation
> of ScrollView.
> ScrollView is in some sense: overflow: pan;
> It's similar to overflow: scroll, but instead of showing scroll bars, it
> allows the user to pan across the element, showing scroll indicators.
> This causes some implementation difficulties when it comes to text
> selection.
> Android, iOS (Apple) and YUI are supporting this style of
> overflow/scrolling.
> SVG and other vector based viewers have often had panning options.
> YUI shows, pretty clearly, how an element like "overflow: pan;" would
> work in typical web-based content.
> Here's their example (admittedly, with turbulence) :
> http://yuiblog.com/sandbox/yui/3.2.0pr1/examples/scrollview/index.html
> It's a thought. I've worked hard to on my naming schemes, to match them
> with standards where I can. The ScrollView is just a one-off from what
> we're already dealing with
> with overflow: scroll.

Might I suggest "overflow-style: pan" instead of "overflow: pan"?
See e.g. http://www.w3.org/TR/css3-marquee/#the-overflow-style
Having the overflow method specified separately from whether or
not the content can overflow is probably a good idea.


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