W3C home > Mailing lists > Public > www-style@w3.org > July 2014

Re: overflow: repeat – Repeating Content for CSS

From: Rick Byers <rbyers@chromium.org>
Date: Mon, 7 Jul 2014 17:41:01 -0400
Message-ID: <CAFUtAY8HkGctGBb1vWYjgq4Q+SpRndZZJ_m=6rcuS6ox=Ps8Bg@mail.gmail.com>
To: Brian Blakely <anewpage.media@gmail.com>
Cc: "www-style@w3.org" <www-style@w3.org>, "Tab Atkins Jr." <jackalmage@gmail.com>, Dirk Schulze <dschulze@adobe.com>, Jacob Rossi <Jacob.Rossi@microsoft.com>
On Mon, Jul 7, 2014 at 11:24 AM, Brian Blakely <anewpage.media@gmail.com>

> Recently went over the awesome minutes taken from the recent Web Input
> Brainstorming session (
> https://docs.google.com/document/d/1Bfcw9iR1SF2VYCXBegbqhbqWMim-ZEd7_iaQODE-RPY/edit
> ).

Thanks, I'm glad they were useful to you!

The topic of "Carouseling scrollers" came up ("Scroll Response APIs"
> segment) and I thought this proposal was worth resurfacing, as carouseling
> is one of the primary use cases.

In the discussion I think we were mainly focused on scrollers with a
defined start and end-point (there was confusion on the 'carousel' term
here - with Google folks using it to refer to any image scroller that snaps
at image boundaries, and others using it to apply only to those with
wrap-around behavior).  But we did agree that the web should offer some
good solution for the wrap-around case.

I think the blink team position would probably be that it should be
possible to build such an effect on top of some primitives that are
lower-level than overflow: repeat.  Eg. we all agreed that it's really
important to nail the infinite scroller use cases (like facebook etc.).
 Once you've done that, a circular scroller should really just be a special

> Original proposal post:
> http://lists.w3.org/Archives/Public/www-style/2013Aug/0564.html
> On Wed, Aug 28, 2013 at 10:54 AM, Brian Blakely <anewpage.media@gmail.com>
> wrote:
>> On Wed, Aug 28, 2013 at 3:12 AM, Dirk Schulze <dschulze@adobe.com> wrote:
>>> It might get a bit tricky if you have a fixed height (or width for
>>> repeat-x) and the content fits one and a half time in it. But I suppose the
>>> scroll bar would scroll twice the normal content dimension then.
>>> I think it is a good idea as well.
>>> Greetings,
>>> Dirk
>> Hi Dirk,
>> Not sure I completely understand the nature of this caveat, but I'll
>> describe the scenario that I think you're envisioning and how it might work:
>> 1. Repeating content's nominal height is 150px
>> 2. Overflow container's height is 100px
>> 3. User scrolls 150px down
>> 4. Scrollbar indicator is now at the bottom of the the overflow container
>> 5. User scrolls an additional 1px
>> 6. Scrollbar indicator is now at the top of the overflow container
>> 7. The first row of pixels for the repeating content are now visible at
>> the bottom of the overflow container
Received on Monday, 7 July 2014 21:41:48 UTC

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