Re: Specifying thumbnailers as a service



Philip Van Hoof wrote:
On Fri, 2008-08-29 at 11:22 +0100, Rob Taylor wrote:

I wonder if it'd make sense to allow multiple services to provide thumbnailing for different mime types. This could be done by having the thumbnailing service(s) register bus names of the form org.freedesktop.thumbnailer.<mime type>, and the application could look up the bus name for the mime type of the file it wishes to thumbnail, and dbus-activation would take care of running the appropriate service.

This makes sense to me.

This sounds overly complicated to me. Now you're assuming that any app that wants to load thumbnails is also capable of figuring out the mime-type of the file it wants to load. For a file manager, sure, but I don't think any app that could potentially want thumbnails should have to be mime-type-aware.

I can understand the viewpoint of a proprietary format that wants to implement a thumbnailer, but this can be done with a single thumbnailing 'server' by allowing the thumbnailing server to exec external processes to do the work. The only other reason I'd see for this would be to have process separation for various thumbnailers, but that can still be accomplished if you're really that afraid of buggy thumbnailers bringing down the service (which should just get restarted via dbus activation anyway).

	-brian


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