Re: NSWorkspace openFile: does not work

[Ivan Vučica]

Use make_services: 
https://groups.google.com/forum/#!topic/gnu.gnustep.discuss/6SQ4sEbi5Gc

It ships with GNUstep GUI:
https://github.com/gnustep/libs-gui/blob/a92b030dcbc226b04cfdf0f91e9cb9b7995f989e/Tools/make_services.m

Reading it should probably hint you at which files are read when trying to find 
the relevant app to open a file.

Ideally, GNUstep would use freedesktop.org mime apps spec:
https://specifications.freedesktop.org/mime-apps-spec/mime-apps-spec-1.0.html
the shared mime info spec:
https://specifications.freedesktop.org/shared-mime-info-spec/shared-mime-info-spec-0.18.html
and the desktop entry spec:
https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-1.1.html

But I don’t think it does.

> On 12 May 2020, at 22:19, Andreas Höschler via Discussion list for the 
> GNUstep programming environment <discuss-gnustep@gnu.org> wrote:
> 
> Hi all,
> 
> sorry for bothering you guys again. I am still not yet through with setting 
> up a productive work environment.
> 
> When I double-click in some Finder like app on a file name - e.g. Test.gorm - 
> I programmatically do
> 
>       [[NSWorkspace sharedWorkspace] openFile:path];
> 
> and would like to see Gorm.app open automatically and see it loading the file 
> given by path (e.g. Test.gorm). Instead Test.gorm is opened on a Terminal 
> window which is a little surprising to me!? 
> 
> I unfortunately do not remember (from using GNUstep years ago) the exact 
> mechanism of giving NSWorkspace the 
> 
>       pathExtension -> responsible application
> 
> info. From checking out Gorm.app/Resources I conclude that the Resources 
> folder of an app needs to announce which kinds of files it can handle in some 
> Info-gnustep.plist file which actually is a propertyList with an NSTypes = 
> (...) entry!?
> 
> But how and when and by whom are all the installed applications Resources 
> folders (the NSTypes entries) scanned to build a map so that NSWorkspace 
> knows what to do with a 
> 
>       [[NSWorkspace sharedWorkspace] openFile:path];
> 
> call? Is this map automatically created by NSWorkspace whenever 
> sharedWorkspace is initiated? If so why does it not work for me (file 
> contents shown in a terminal session)? Or do I need to build this map by 
> calling some GNUstep utility manually after installing a new app?
> 
> <s2.tiff>
> 
> 
> Thanks a lot again,
> 
> Andreas
> 
>