Hi Peter, On Oct 3, 2008, at 4:08 PM, Peter Speck wrote:
> On 03/10/2008, at 14:16, Maciej Stachowiak wrote: > >>> [...] Other sites update their title on a timer in a way that is >>> useful for a background tab. For example, GMail updates the unread >>> count, which is quite useful on a background tab label. [...] > > Maybe the new Timer API should be extended with an option for: should > this timer be executed when the page is hidden in a background tab. > I think that's a great suggestion. > > Animation timers would then specify no, thereby reducing amount of > cpu/ > battery consumed. > > GMail could specify yes: low-overhead update of the unread count in > background. Looking forward, HTML5's 'event' element would be a better approach than using setTimeout, but obviously setTimeout would be needed for legacy support. I think we should be striving for a set of APIs and other standards that avoid this misuse of setTimeout for polling. If we have well-supported and well-designed standards (such as the 'event' element, though it isn't really fleshed out yet) I think it becomes difficult to come up with examples that would need a background timer at all: though I'm all for providing it for edge cases. The only examples I can come up with are those web apps incorrectly using timers to resort to background polling (like gmail). > It would make sense to have the default to be false, and to be the > last parameter. Sounds good to me. Take care, Rob _______________________________________________ webkit-dev mailing list webkit-dev@lists.webkit.org http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev
