create_cstr_from_cfstring_with_fallback() is allowed to be called when str == NULL
but create_cstr_from_cfstring() isn't which leads to warnings in the console.
Fix this by adding NULL checks into create_cstr_from_cfstring_with_fallback().
https://bugzilla.gnome.org/show_bug.cgi?id=788936
The patch basically just grabs the implementation of g_content_type_get_icon_internal()
from gcontenttype.c - the only difference is that it first converts UTI to MIME using
g_content_type_get_mime_type() and at the end frees this temporary MIME type.
https://bugzilla.gnome.org/show_bug.cgi?id=788936
During testing with gdk-pixbuf I noticed failures during content type
to mime conversion. The root reason was the unsafe conversion used
in create_cstr_from_cfstring. The problem was addressed in commit
c60226e0a1 but that was reverted. I noticed the commit only
when I had fixed the problem. In addition I added a test to check
the content type to mime conversion on MacOS. This problem is
discussed in Bug #788936.
See: https://bugzilla.gnome.org/show_bug.cgi?id=788936
Closes: Bug #788401
The problem is described here:
https://bugzilla.gnome.org/show_bug.cgi?id=788401
This patch introduces the use of the xdgmime system to guess
the content type from data. So you can guess for example the
type public.svg-image from the file content of a svg file.
This patch only applies to MacOS. A test for the regression
is also included.
This is an implementation of most of GContentType using the OS X
UTType APIs.
Missing at this point is an implementation of
g_content_types_get_registered() and g_content_type_guess_for_tree().
https://bugzilla.gnome.org/show_bug.cgi?id=734946
