On Jun 22, 2010, at 12:44 AM, kim.1.gronh...@nokia.com wrote:

> We at Nokia have implemented tactile feedback (i.e. Haptics) support for 
> touch-based user interfaces and are now ready to land the implementation to 
> the WebKit trunk. Since the real-time requirements of a realistic feel are 
> very tight, it is not possible to implement the haptic feedback via a simple 
> javascript event handler. We have considered various alternatives and 
> concluded that the best and most future-proof way is to utilize CSS to 
> specify the tactile feedback style of a web element.
> 
> Thus, we implemented a -webkit- CSS extension that enables web developers to 
> specify the feel of an element. This is important for custom JavaScript 
> controls to behave identically to native controls. The specification is 
> currently at http://www.starlight-webkit.org/CSS/css3-haptics.html and the 
> implementation work is ongoing at 
> https://bugs.webkit.org/show_bug.cgi?id=40263. We have also been discussing 
> about this at www-style mailing list to get feedback.
> 
> We are actively driving the standardization with the Nokia standardization 
> team and will make any necessary changes of the final standard, if any. As it 
> is likely that this extension will be used mainly by JavaScript libraries, we 
> are not too concerned about the potential legacy the standardization may 
> introduce.
> 
> Finally, the haptic feedback of web elements will be implemented in Nokia 
> smartphones and we would like to commit the implementation to the open source 
> even before product launch. All feedback would be more than welcome!

My impression from the thread on www-style (starting here 
<http://lists.w3.org/Archives/Public/www-style/2010Jun/0389.html>) was that 
there was very little consensus over the haptic feedback-related CSS 
properties. I think it's premature to land an implementation in WebKit until 
the specification has been more widely discussed, and has a greater degree of 
acceptance.

Simon

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