Saving NSAttributedString with NSTextAttachment to file. How?

Question

I have an NSTextView that can contain rich text or rich text with an image like NSTextAttachment . How do I add an attachment:

 NSImage *image = [NSImage imageNamed:@"image"]; NSTextAttachmentCell *attachmentCell =[[NSTextAttachmentCell alloc] initImageCell:image]; NSTextAttachment *attachment =[[NSTextAttachment alloc] init]; [attachment setAttachmentCell: attachmentCell ]; NSAttributedString *attributedString =[NSAttributedString attributedStringWithAttachment: attachment]; [[aTextView textStorage] beginEditing]; if ([aTextView shouldChangeTextInRange:NSMakeRange([aTextView selectedRange].location, 0) replacementString:@""]) { [[aTextView textStorage] insertAttributedString:attributedString atIndex:[aTextView selectedRange].location]; [aTextView didChangeText]; } [[aTextView textStorage] endEditing]; 

My method is -fileWrapperOfType:error: ::

 - (NSFileWrapper *)fileWrapperOfType:(NSString *)typeName error:(NSError *__autoreleasing *)outError { NSRange documentRange = NSMakeRange(0, [[[WindowController aTextView] textStorage] length]); NSTextStorage *text = [[WindowController aTextView] textStorage]; NSFileWrapper *resultWrapper = nil; if ([typeName compare:@"public.rtf"] == NSOrderedSame) { resultWrapper = [[NSFileWrapper alloc] initRegularFileWithContents:[text RTFFromRange:documentRange documentAttributes:[NSDictionary dictionaryWithObjectsAndKeys:NSRTFTextDocumentType, NSDocumentTypeDocumentAttribute, nil]]]; } else if ([typeName compare:@"com.apple.rtfd"] == NSOrderedSame) { resultWrapper = [text RTFDFileWrapperFromRange:documentRange documentAttributes:[NSDictionary dictionaryWithObjectsAndKeys:NSRTFDTextDocumentType, NSDocumentTypeDocumentAttribute, nil]]; } return resultWrapper; } 

But when I save RTFD, all attachments are lost. Please help. What am I missing?

Answer 1

I found an acceptable solution described here: Cocoa: custom text attachment