In its previous form, g_settings_list_schemas() was not useful as a tool
to prevent aborts due to using g_settings_new() with an invalid schema
name. This is because g_settings_list_scheams() also listed relocatable
schemas, and calling g_settings_new() for those would abort just the
same as if you called it for a non-existent schema.
Modify g_settings_list_schemas() so that it only returns schemas for
which it is safe to call g_settings_new(). Add another call for sake of
completeness: g_settings_list_relocatable_schemas().
When binding a boolean setting to a boolean property, invert the values.
This avoids the requirement for writing a pair of mapping functions for
this extremely common case.
Add a test.
https://bugzilla.gnome.org/show_bug.cgi?id=625833
Add a <flags> tag to the schema file format and a flags='' attribute to
go along with. Add some extra test cases for those.
Add new g_settings_{get,set}_flags() calls and support binding to
GParamSpecFlags properties. Add test cases.
Length of the array is redundant since it's NULL-terminated. This is not
consistent with many GLib and GTK+ functions, and adds complexity with
no real gain, while these convenience functions should be kept simple.
Closes bug #620312
