[whatwg] Provide a system to observe nodes entering and leaving the viewport

louis-rémi Babé lrbabe at gmail.com
Tue Jun 25 07:43:41 PDT 2013

Hi Simon,

The first two points are already answered in the bug, and I will see
if I can find people at Mozilla interested in implementing this

On 24 June 2013 09:21, Simon Pieters <simonp at opera.com> wrote:
> On 6/23/13 3:37 PM, louis-rémi Babé wrote:
>> Hi, I've opened a bug about a ViewportObserver API that would allow
>> developers to receive a digest of what nodes enter or leave the viewport
>> (similar to MutationObserver).
>> The bug is on the w3's bugzilla:
>> https://www.w3.org/Bugs/Public/show_bug.cgi?id=20246
> I will get to addressing this bug in due course.
>> The discussion didn't go really far, it stopped a year ago but I've seen
>> similar ideas pop up in different places(e.g.
>> http://lists.w3.org/Archives/Public/public-web-perf/2013May/0027.html ).
>> I'm now searching for people who could help me move this idea forward.
>> Who should I ping/contact/harass?
> What would be useful for me:
> * use cases for the feature.
> * URLs to existing pages that work around the lack of this feature.
> * stated implementation interest from browser vendors.
> Please comment further in the bug. Thanks!
> --
> Simon Pieters
> Opera Software

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