Disabling presence control when no network is available

[David Edmundson]

On Mon, Dec 10, 2012 at 10:52 AM, Weng Xuetian <wengxt at gmail.com> wrote:
>
> On Mon, Dec 10, 2012 at 5:04 AM, Dan Vrátil <dvratil at redhat.com> wrote:
>>
>> On Sunday 09 of December 2012 19:01:38 Martin Klapetek wrote:
>> > Hey all,
>> >
>> > me and David brainstormed the presence handling a bit and we came up
>> > with
>> > the idea of disabling the presence controls when you have no network.
>> > This
>> > way we can supress all errors when there is no network and prevent
>> > situations when Tp gets stucked in a connecting state even if you have
>> > no
>> > network. I did small testing patch and here is how the contact list
>> > would
>> > look if you have no network:
>> > http://dl.dropbox.com/u/6761102/presence_offline.png
>> >
>> > It watches Solid::Networking states and changes whenever Solid signals
>> > network un/availability.
>> >
>> > The presence plasmoid would be changed in a similar way - presence
>> > actions
>> > would be replaced with "No network connection" and some actions disabled
>> > accordingly ("Join chat room" etc).
>> >
>> > What do you think?
>>
>> Looks awesome!
>>
>> Is there a way to override the "No Network" status in case NetworkManager
>> goes
>> nuts?
>>
>> Dan
>>
> Yeah I also concern about this. There ARE some case if a network environment
> only have "lo", but it use some other way to built a proxy with only "lo"
> interface.
>
> For example,
> Android phone, setup a proxy on the phone and redirect by adb (I know this
> is a VERY rare case... but I have use it several times, don't argue why I
> use this werid setup.. this is only for an example).
>
> So warn user about no network is good, but in some case it's still useful
> make user can force the connection. Even proxy is not supported right now..
>
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In order to do that you would have to disable network manager (right?)
if network manager is not running solid you will be in state unknown
and not disconnected. At which point we won't show this.

It's worth noting that mission-control-5 won't connect if NM is
running and reports you as offline. So having the controls (this
patch) won't actually help with anything.