Re: GTK+ Application class

[Yevgen Muntyan <muntyan tamu edu>]

Emmanuele Bassi wrote:

[snip]

> We have a document-based API using these five vfuncs:
>
> ... 
>  gchar *       (*new_document)      (GtkApplication       *application);
>  gboolean      (*save_document)     (GtkApplication       *application,
>                                      const gchar          *document_name,
>                                      const gchar          *document_uri,
>                                      gboolean              save_backup,
>                                      gboolean              overwrite,
>                                      GError              **error);
>  gboolean      (*open_document)     (GtkApplication       *application,
>                                      const gchar          *document_uri,
>                                      gboolean              read_only,
>                                      GError              **error);
>  gboolean      (*close_document)    (GtkApplication       *application,
>                                      const gchar          *document_name,
>                                      GError              **error);
>  
What are these going to do and who is going to call them?

[snip]

> Each GtkApplication should declare which MIME types it supports:
>
>  void          (*set_mime_types)    (GtkApplication       *application,
>                                      const gchar * const   mime_types[],
>                                      gint                  n_mime_types);
>  GSList       *(*get_mime_types)    (GtkApplication       *application);
>  
What's the purpose of this?

[snip]

>  void          (*add_window)        (GtkApplication       *application,
>                                      const gchar          *document_name,
>                                      GtkWindow            *window);
>  void          (*remove_window)     (GtkApplication       *application,
>                                      const gchar          *document_name,
>                                      GtkWindow            *window);
>  
What does it mean to "add window"? And is this one-window-one-document
setup?

[snip]

> I'd like to hear from developers using an "application" abstraction in
> their code (like Gedit, Evince and Epiphany) what they think about this
> API and what they think an application API should provide for their
> needs.  For instance, this API is designed for document-based
> applications; 
All in all, it's really not clear what this api is doing. The document
stuff looks like it's a desktop file taken to the next level, but what for?

And a minor thing: there should be something like try-quit and
really-quit methods; the latter must always be called when application
quits, and it should not be delegated to finalize().

Best regards,
Yevgen