ubuntu-phone team mailing list archive

[Victor Thompson <victor.thompson@xxxxxxxxx>]

Hi Nik,

Instead of having the application use powerd. I think a better solution
that would fit any use case of an app would be to have an option in the
system settings to leave the screen on when power is connected. This is how
my Android device, for instance, accomplishes this. Also, the QtPowerd
plugin that the music app used was non-functional and the only reason the
music app worked was because it has a life cycle exception. The plugin
would probably need to be fixed if we were to use it.

Victor
On Jun 4, 2014 8:25 AM, "Nekhelesh Ramananthan" <krnekhelesh@xxxxxxxxx>
wrote:

> Hey everyone,
>
> During the sprint at Malta, we were given new designs for the clock app.
> It introduces a new mode called the "*Night Mode*" where the user can use
> the phone as a clock stand. In the Night Mode, the clock app will show a
> basic clock with all other UI elements hidden and also use a dark
> background. It is however important that the screen remains on all the
> time. I still need to confirm with design, how long they want the screen to
> be on. As I understand, currently it is not possible for an app to request
> the screen to be on. I discussed this with Jamie Strandboge and Jim Hodapp.
> I was told that the media-hub makes dbus calls to powerd to keep the screen
> on when a video is being played on the phone. So I am hoping we can do
> something similar for the clock app.
>
> Jamie informed me that 3rd apps cannot make direct calls to powerd while
> being confined. So there are some options that come to mind,
>
>    - Let the clock app run unconfined to make direct calls to powerd.
>    This was also done by the music-app until recently when they switched to
>    music-hub. It is not the ideal situation as advised by Jamie.
>    - Create a restricted policy group which allows making calls to powerd.
>    - Implement a intermediary (power-hub) in between confined apps and
>    powerd
>
> The best temporary solution may be the restricted policy group in my
> opinion. However I feel that the 3rd solution might be a better option in
> the long run since 3rd apps might like to have that control as well.
>
> Hopefully we can discuss here what other solution are available and come
> to a resolution soon.
>
> Cheers,
> Nekhelesh
>
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