On Tue, 2014-01-21 at 02:05 +0100, Bastien Nocera wrote:

> The only blocking patch for Totem is:
> https://bugzilla.gnome.org/show_bug.cgi?id=722358
> 

I'll give more priority to this.

> 2) I'd also like some guidance on the last patch to:
> https://bugzilla.gnome.org/show_bug.cgi?id=722629
> 
> I don't quite understand the API of:
> grl_source_notify_change()
> and the "content-changed" signal.
> 
> For example, I'd like to signal that a particular media (say, a DVD
> image) in the optical media source got removed. It seems that I can't
> just pass the GrlMedia representing the DVD image to the function. I'd
> need to pass %NULL to represent the root of the source, and then browse
> again?
> 

I think it is allowed to pass a GrlMedia, if you want to notify the
exact media that has changed.

Actually, a plugin can use a GrlMediaBox (or %NULL for root container)
if it is easier for it to just say something changed inside the
container, without explicitly saying the element added/removed, or
specify the exact element that has changed. So far, I think all plugins
that handles notification follows the first approach.

I'm not sure if allowing both approaches is something good or not. Using
a Box makes things easier to handle: application only needs to re-launch
the browse/search, and that's all. But it has the drawback that it has
more cost than just remove/add the exact element from a list.


> Should grl_source_notify_change() warn if the GrlMedia is neither %NULL
> nor a GrlMediaBox?
>
Right now, I don't think so. 

> 3) Finally, I wanted to be able to add thumbnails to items retrieved
> from the Tracker plugin. It looks like I need to use the local-metadata
> plugin to do that, but, in the future, I want to use the tmdb plugin to
> look up more data.
> 
> Is it possible to do lookups only using local-metadata but not tmdb for
> some calls, but use all available sources for others?
> 

I think if you want to do lookups only using one source, you would need
to do it by hand, calling resolve().

        J.A.


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