[exact same post, with "file type" changed to "file extension" in 2nd to last
paragraph]
I'm sure I'm missing something - it's probably one of those things that when
you see it, you wonder how you missed it.
writableTypesForSaveOperation: seems to be about file type, e.g. RTF, XML,
etc., rather than file extensions. From the Apple docs:
> You can override this method to limit the set of writable types when the
> document currently contains data that is not representable in all types. For
> example, you can disallow saving to RTF files when the document contains an
> attachment and can only be saved properly to RTFD files.
The Apple docs don't seem to provide a demo app that calls this, but, from
FunHouseDocument.m:
> + (NSArray *)writableTypes
> {
> return [NSArray arrayWithObjects:@"Fun House Preset", @"JPEG File",
> @"TIFF File", nil];
> }
Also from FunHouseDocument.m:
> + (BOOL)isNativeType:(NSString *)aType
> {
> return [[[self class] writableTypes] containsObject:aType];
> }
So I still haven't discovered how to tell NSSavePanel what file extension my
document should be, when calling
saveDocumentWithDelegate:didSaveSelector:contextInfo.
I'm sure it's right in front of me. What am I not seeing yet?
On Sep 3, 2011, at 5:23 PM, Kyle Sluder wrote:
> On Sat, Sep 3, 2011 at 5:14 PM, Vik Rubenfeld <v...@mindspring.com> wrote:
>> If I'm using saveDocumentWithDelegate:didSaveSelector:contextInfo, what is
>> the correct way for me to communicate the list of suitable extensions to the
>> Save panel?
>
> NSDocument ascertains this information from calling
> -writableTypesForSaveOperation: and +isNativeType: on your NSDocument
> subclass.
>
> --Kyle Sluder
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