>From what I can tell the spec offers no way for the web application to initialize any algorithm based on the battery/power state because there is no guarantee of "minimum time" when a new document is created and the first battery event arrives. Ideally there would be a way to "kick" the UA into sending the battery event on demand.
Otherwise the web application starts at full-throttle (burning battery) on a device with 10% battery left until it *drains* enough to get a batteryEvent. On Wed, Jun 15, 2011 at 10:08 AM, Alexis Menard <alexis.men...@openbossa.org > wrote: > On Wed, Jun 15, 2011 at 2:02 PM, Andrei Popescu <andr...@google.com> > wrote: > > On Wed, Jun 15, 2011 at 5:58 PM, Brett Wilson <bre...@chromium.org> > wrote: > >> On Wed, Jun 15, 2011 at 9:30 AM, Holger Freyther <ze...@selfish.org> > wrote: > >>> On 06/15/2011 06:11 PM, laszlo.1.gom...@nokia.com wrote: > >>>> Hi, > >>>> > >>> > >>>> > >>>> The use-case for us is to enable content developers to implement > rudimentary power management (e.g. to stop "expensive" operations on the > page, perhaps save state). I'm not sure if this API is really meant for > accurately reporting all the possible power management states of the system > as Anssi pointed out. > >>> > >>> Okay, point on complexity taken. My question is what if you want to add > >>> complexity, is there something in the event that prevents that (I have > no idea > >>> about DOM compatibility issues)? Don't get me wrong I think having more > device > >>> support is great. > >>> > >>> My other complain was, it is too simple. E.g. 'isPlugged' has no > guarantee > >>> that the battery is getting charged. Is this a problem? > >> > >> Why would a web page care about whether the battery is being charged > >> when the device is plugged in? > >> > > > > Because it would know not to start doing things that drain the > > battery. For instance, powering up a 3G antenna to download your > > latest emails could be annoying to users if the battery level is too > > low. 3G takes quite a bit of power and the device would be in danger > > of powering down. > > But if the phone is plugged in it can't power down. Most of modern > phones don't switch off anymore even if you have the battery low and > you play games, surf WiFi, go 3G as soon as you plugged it in. What > Brett meant is that it's useless to know that the battery is charging > while the phone is plugged in, you just want to know that it will not > switch off in any case so you can do whatever you want. > > > > > Thanks, > > Andrei > > _______________________________________________ > > webkit-dev mailing list > > webkit-dev@lists.webkit.org > > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev > > > > > > -- > Alexis Menard > Software Engineer > INdT Recife Brazil > _______________________________________________ > webkit-dev mailing list > webkit-dev@lists.webkit.org > http://lists.webkit.org/mailman/listinfo.cgi/webkit-dev >
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