Quick Look is a new feature for Mac OS X 10.5 (Leopard). It lets users see a preview and a thumbnail for various document types in the Finder and other apps. In order for Quick Look to work, documents need UTIs (Uniform Type Identifiers). I have defined the following UTIs for Mulberry documents:

• Drafts (extension .mbd, type 'Lett'): com.mulberrymail.mulberry.draft

A working plug-in is now available. Please note that it only works for drafts. It should work for plain text and HTML-based drafts. It shows headers and message text.

You can download the plug-in here:

http://tyrion.rrz.uni-koeln.de/~a0620/MulberryLook.qlgenerator.tgz

Installation instructions:

• unzip the archive
• move the bundle MulberryLook.qlgenerator to ~/Library/QuickLook or /Library/QuickLook

Future releases of Mulberry will have a modified Info.plist file with support for UTIs. If you want to modify it yourself, just add these lines to the outermost dict (sorry for the messed up indentation):

 <key>UTExportedTypeDeclarations</key>
 <array>
 <dict>
 			<key>UTTypeConformsTo</key>
 			<array>
 				<string>public.text</string>
 			</array>
 			<key>UTTypeDescription</key>
 			<string>Mulberry draft</string>
 			<key>UTTypeIconFile</key>
 			<string>Lett.icns</string>
 			<key>UTTypeIdentifier</key>
 			<string>com.mulberrymail.mulberry.draft</string>
 			<key>UTTypeReferenceURL</key>
 			<string>http://www.mulberrymail.com</string>
 			<key>UTTypeTagSpecification</key>
 			<dict>
 				<key>com.apple.ostype</key>
 				<array>
 					<string>Lett</string>
 				</array>
 				<key>public.filename-extension</key>
 				<array>
 					<string>mbd</string>
 				</array>
 			</dict>
 		</dict>
 	</array>

If you don't know what this means, don't try it ...

If the plug-in isn't used, it may be necessary to refresh the Launch Services database. This may be overkill, but it works:

• quit Mulberry
• run the following command from the Terminal

  /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -all local,system,user
  

You can verify the plug-in manually by running

qlmanage -c com.mulberrymail.mulberry.draft -p <path to file>

from the Terminal.