Re: Proposal: "Preview" shell for EoG/gpdf/ggv

["Gustavo J. A. M. " Carneiro <gjc inescporto pt>]

On Mon, 2003-02-10 at 16:36, Jens Finke wrote:
> Hi,
> 
> On Mon, 10 Feb 2003, Jeff Waugh wrote:
> > So, Martin and Jaka have already posted about the idea of a single shell for
> > viewing PS and PDF files using the ggv and gpdf backends.
> > 
> > It occured to me this afternoon that EoG worked exactly the same way - it's
> > an image viewing component with a minimal shell. Wouldn't it be cool if all
> > three components used the same shell for static document viewing? (It would
> > work very similarly to Apple's "Preview" utility in OS X.) Other apps could
> > easily install components for this shell too... Holy cow -> Bonobo in the
> > real world!
> 
> I think on the bonobo interface side, there is almost everything there
> (and eg. EoG does mostly all of it already):
> 
> Bonobo::Control (main embedding component stuff)
> Bonobo::PersistFile (for loading/saving URIs)
> Bonobo::Zoomable (zoom related interface)
> Bonobo::PropertyBag (storing status information)
> 
> AFAICS there remain two major issues left for discussion:  
> 
> 1) The supported menu structure. All views share the same menu and must
> fit into a unique scheme. Basically, I think this will end up using a very 
> similar structure like nautilus. EoG does this already (on the xml level), 
> since it should seamlessly fit into the nautilus shell. And I think this 
> will apply to nearly all other views too. 
> 
> 2) The required/supported property values. A lot of status information 
> must/should be reported to the surrounding shell through properites. This 
> has the advantage that the shell can install listeners for these very 
> easily. 
> 
> I think both discussions have the potential to create a gnome wide
> component standard, a thing which is really needed. The lack of such
> standards prevent the spread of component reusing. You can't embed a
> component in your application when you end up with two 'View' menus in
> your menubar, due to incompatible ui-xml descriptions.

  There *is* a standard. People just don't know it's there! :)
See libbonoboui/doc/std-ui.xml.

> 
> These two issues, I guess, also prevented a wider use of the generic shell
> Martin B. (IIRC) wrote in the early days of bonobo. But we all have much 
> more experiences now, so I think it is possible and a very good idea.
> 
> Best wishes,
> 
>     Jens
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-- 
Gustavo Joćo Alves Marques Carneiro
<gjc inescporto pt> <gustavo users sourceforge net>