Excluding non-export file types from the Export dialog.

FROM : Joshua Scott Emmons
DATE : Fri Jun 30 19:11:33 2006

I've been looking for an answer to this for a week now. Nothing I 
come up with seems to work. Surly others have come across this? How 
do you folks make your export dialogs?

Here's what I've done:

I've set up an "Export As…" menu in my application. I've wired it to 
First Responder's saveDocumentTo:. I've added two file types (html 
and rtf) to my info.plist, set their CFBundleTypeRole to "None", and 
put references to both those type in NSExportableAs in my native file 
format. So the file section of my info.plist looks like:

<key>CFBundleDocumentTypes</key>
<array>
<dict>
   <key>CFBundleTypeExtensions</key>
   <array>
       <string>native</string>
   </array>
   <key>CFBundleTypeIconFile</key>
   <string>Native</string>
   <key>CFBundleTypeMIMETypes</key>
   <array>
       <string>application/octet-stream</string>
   </array>
   <key>CFBundleTypeName</key>
   <string>Native Type</string>
   <key>CFBundleTypeRole</key>
   <string>Editor</string>
   <key>LSTypeIsPackage</key>
   <false/>
   <key>NSDocumentClass</key>
   <string>MyDocument</string>
   <key>NSExportableAs</key>
   <array>
       <string>HTML</string>
       <string>RTF</string>
   </array>
   <key>NSPersistentStoreTypeKey</key>
   <string>Binary</string>
</dict>
<dict>
   <key>CFBundleTypeExtensions</key>
   <array>
       <string>html</string>
   </array>
   <key>CFBundleTypeName</key>
   <string>HTML</string>
   <key>CFBundleTypeRole</key>
   <string>None</string>
   <key>LSTypeIsPackage</key>
   <false/>
   <key>NSPersistentStoreTypeKey</key>
   <string>InMemory</string>
</dict>
<dict>
   <key>CFBundleTypeExtensions</key>
   <array>
       <string>rtf</string>
   </array>
   <key>CFBundleTypeName</key>
   <string>RTF</string>
   <key>CFBundleTypeRole</key>
   <string>None</string>
   <key>LSTypeIsPackage</key>
   <false/>
   <key>NSPersistentStoreTypeKey</key>
   <string>InMemory</string>
</dict>

When I select "Export As…" from my menu, a standard save sheet pops 
out and has a list of formats in a pop-up button as its accessory 
view. So far so good.

HOWEVER, in addition to "HTML" and "RTF" (listed in NSExportableAs), 
"Native" also shows up in the file format popup. That's just wrong. 
If I wanted to write the native format, I'd use Save or Save As…, not 
Export As…. In every cocoa program I've ever used, the only file 
formats to appear in the export dialog are the ones listed in 
NSExportableAs. Not the rest

This question has been asked a few times[1][2], but it's never been 
answered. Is there really no solution for this (other that rolling a 
custom accessory view)!?

[1]: http://lists.apple.com/archives/cocoa-dev/2003/Sep/msg00071.html
[2]: http://lists.apple.com/archives/cocoa-dev/2004/Dec/msg00359.html


Many thanks!
-Joshua Emmons _______________________________________________
Do not post admin requests to the list. They will be ignored.
Cocoa-dev mailing list      (<email_removed>)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/<email_removed>

This email sent to <email_removed>