[Bug 531105] Useless font auto-installer calls

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https://bugzilla.redhat.com/show_bug.cgi?id=531105


Behdad Esfahbod <besfahbo at redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |richard at hughsie.com,
                   |                            |smparrish at gmail.com
          Component|fontconfig                  |PackageKit
         AssignedTo|besfahbo at redhat.com         |richard at hughsie.com




--- Comment #1 from Behdad Esfahbod <besfahbo at redhat.com>  2009-10-26 18:17:15 EDT ---
(In reply to comment #0)
> The font stack triggers the PK font auto-installer for stuff like N'ko or
> Ancient Persian for which fontconfig has no orthography
> 
> Therefore, those calls will never succeed and the user is bothered for no good
> reason

This is surely a bug.  And easy to fix, in at least two ways on the PK side:

1) Only show a dialog if there's any font supporting that language.  This was
supposed to be the default.  Not sure why it wasn't implemented this way.

2) In the GTK+ module, use FcLangGetCharset() to check whether fc knows about
the language.

IMO both of them should be done.

> fc-query/cache should also generate PK metadata for unicode blocks, so that
> when the font stack needs a glyph which is not part of an orthography, PK can
> search for fonts that cover the corresponding unicode block (stuff like symbols
> will probably never make it in an orth)  

Not a huge fan of this.  Lets add orth's where missing.

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