* Add class DatabaseLocation. It contains a list of the MIME DB
directory paths plus methods to access type files.
* Move all low-level MIME DB access functions from
database_{support,access} to DatabaseLocation. All code that formerly
used those now requires a DatabaseLocation object. In BMimeType and in
the registrar the default object is used, but the low-level classes
can now be reused with different locations.
* Move get_icon_data() from database_access to database_support and
delete the former, which is now empty.
Each installation location (system, common, common/non-packaged,
~/config, ~/config/non-package) can now have a read-only data/mime_db
directory. ~/config/settings/beos_mime is now named mime_db as well. The
contents of all directories makes up the MIME DB. Entries in more
specific locations shadow entries in more general locations. Only the
directory in ~/config/settings is where the registrar writes changes to.
The new layout allows packages to contribute entries to the MIME DB by
simply providing the respective files in data/mime_db. Consequently the
user settings directory is supposed to contain only the things the user
has actually changed.
Seems to work fine as far as tested. A few issues, though:
* The registrar doesn't monitor the directories yet, so it doesn't
notice entry changes due to package de-/activation.
* ATM it is not possible to remove a MIME type that is not in the user
settings directory, although the FileTypes GUI suggests that it is.
We'd have to work with white-outs, since we cannot remove the files in
the data/mime_db directories. Or, alternatively, the API has to be
extended and the FileTypes GUI adjusted to disable the "Remove" button
in such a case.
+ Added sniffer rule based mime type guessing
+ Added get_device_icon()
+ Added complete (synchronous, asynchronous; recursive,
non-recursive; forcing, non-forcing; you name it we got it :-)
update_mime_info() implementation.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1152 a95241bf-73f2-0310-859d-f6bbb57e9c96
functionality, it became apparent that some restructuring was
needed if I wanted to keep things clean and managble.
storage/MimeDatabase.{h,cpp} have been broken into:
storage/mime/database_support.{h,cpp}
+ MIME database constants
+ high-level database access functions like open_type(),
read_mime_attr(), etc.
storage/mime/database_access.{h,cpp}
+ atomic read functions
+ is_installed()
+ get_icon_data()
storage/mime/Database.{h,cpp}
+ Mime::Database class, which is responsible for all write,
non-atomic read, and mime monitor functionality.
storage/mime/InstalledTypes.{h,cpp}
+ Helper class for Mime::Database::GetInstalled[Super]Types()
storage/mime/Supertype.{h,cpp}
+ Helper class for Mime::InstalledTypes
I haven't merged my intial, somewhat cludgy GetInstalled[Super]Types
implementation into the new setup yet. That comes next, and it ought
to be a more graceful implementation now.
I also implemented BMimeType::Get/SetSupportingTypes(), though
they haven't been tested yet (sorry).
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@862 a95241bf-73f2-0310-859d-f6bbb57e9c96
