Bug#489435: Cannot open help file

[Matt Kraai]

On Thu, Jul 10, 2008 at 10:00:45AM -0700, Matt Kraai wrote:
> On Thu, Jul 10, 2008 at 11:39:43AM +0200, Loïc Minier wrote:
> > On Sat, Jul 05, 2008, Matt Kraai wrote:
> > > When I choose Help->Contents, Cheese displays the following dialog:
> > > 
> > >  Unable to open help file for Cheese
> > > 
> > >  [Close]
> > 
> >  WFM   :-(
> 
> OK.  I'll try to debug it myself, then.

Cheese calls g_app_info_launch_default_for_uri with a uri of
ghelp:cheese.  This ends up calling
g_app_info_get_default_for_uri_scheme with a URI scheme of ghelp.  It
enters the first if statement, doesn't enter the use_this if
statement, enters the lookup_instance == NULL if statement, gets an
empty list from g_io_extension_point_get_extensions, which ends up
setting lookup to 1 and returning NULL, which causes the whole thing
to fail.  Could someone for whom this works please step through this
section of code and let me know what their system does differently?

-- 
Matt                                                 http://ftbfs.org/