I guess that is not even possible, as I would need to subscribe to something like "(-min-webkit-device-pixel-ratio: 1.0)" and will only be notified in case the evaluation of that exact expression changes. Maybe that spec is lacking a way to subscribe to arbitrary changes in say device-pixel-ratio.
It does feel a bit expensive, but then again we are only reevaluation after pinch end, so I guess that would be fully OK. Kenneth On Fri, Mar 4, 2011 at 9:02 PM, Kenneth Rohde Christiansen <kenneth.christian...@gmail.com> wrote: > Hi Simon, > > I guess you could use the media query listener defined in > http://dev.w3.org/csswg/cssom-view/#the-mediaquerylist-interface > > We support that on trunk now. This of course means that we will need > to reevaluate the CSS when a pinch zoom ends, which we might be doing > already given media queries such as @media all and (min-width: 200px). > > Cheers > Kenneth > > On Fri, Mar 4, 2011 at 8:47 PM, Simon Fraser <simon.fra...@apple.com> wrote: >> On Mar 4, 2011, at 11:24 AM, Kenneth Rohde Christiansen wrote: >> >>> Hey Oliver! >>> >>> If you are saying that device-pixel-ratio should include the user >>> scaling, then I can push that for Qt, but I would really like seeing >>> it supported by iOS as well for compatibility reasons. If you create a >>> bug for that, please cc me. >> >> There's a problem with that, which is that the author can assume (possibly >> erroneously) that device-pixel-ratio doesn't change for the life of the >> page. However, the zoom level can change often, and there's no notification >> that the author can register for that will tell them when the zoom level >> changes, and thus when they'll need to redraw their canvas contents. >> >> Simon >> >> > > > > -- > Kenneth Rohde Christiansen > Senior Engineer > Application and Service Frameworks, Nokia Danmark A/S > Phone +45 4093 0598 / E-mail kenneth.christiansen at gmail.com > > http://codeposts.blogspot.com ﹆﹆﹆ > -- Kenneth Rohde Christiansen Senior Engineer Application and Service Frameworks, Nokia Danmark A/S Phone +45 4093 0598 / E-mail kenneth.christiansen at gmail.com http://codeposts.blogspot.com ﹆﹆﹆ _______________________________________________ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
