On May 11, 2012, at 2:09 AM, Gideon King wrote:
> I assumed that if I wanted to try this out, I should be able to do something
> like this in my NSDocument subclass:
>
> + (void)initialize {
> [NSApp registerServicesMenuSendTypes:[NSArray
> arrayWithObjects:NSFilenamesPboardType, NSFileContentsPboardType,
> NSURLPboardType, NSFilesPromisePboardType, nil] returnTypes:nil];
> }
>
> - (id)validRequestorForSendType:(NSString *)sendType returnType:(NSString
> *)returnType {
> return nil;
> }
>
> - (BOOL)writeSelectionToPasteboard:(NSPasteboard *)pboard types:(NSArray
> *)types {
> return NO;
> }
>
> (assuming that the "New Email With Attachment" service would take one of the
> pasteboard types I had specified).
That service is defined in Mail's Info.plist and it takes NSFilenamesPboardType.
> I then put breakpoints in the other two methods, but they were never called.
The Services docs say that the latter two methods must be on an NSResponder
object, like a view or window. I recognize that the document is in the
responder chain for action messages, but that may not suffice for this case.
The docs also say:
"The validRequestorForSendType:returnType: message is sent along an abridged
responder chain, comprising only the responder chain for the key window and the
application object."
Regards,
Ken
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