NSSharingService - Remove facebook and twitter and add Print - cocoa

Question

I've just implemented a share-button, that has a share menu:
[_shareButton sendActionOn:NSLeftMouseDownMask];
And has this action connected:
-(IBAction)share:(id)sender {
NSArray *shareArray = #[#"testShare"];
NSSharingServicePicker *sharingServicePicker = [[NSSharingServicePicker alloc] initWithItems:shareArray];
sharingServicePicker.delegate = self;
[sharingServicePicker showRelativeToRect:[sender bounds]
ofView:sender
preferredEdge:NSMinYEdge];
}
Now to my question, I don't want Facebook and Twitter to be an option in the menu. I only want E-Mail and Messages to be available. Also I would like to add "Print", but don't know if I can do that.
Is that possible?
Thanks
(Don't have enough rep points to add 'NSSharingService' as a tag)

Answer 1

Solved it by using proposedSharingServices.
- (NSArray *)sharingServicePicker:(NSSharingServicePicker *)sharingServicePicker sharingServicesForItems:(NSArray *)items proposedSharingServices:(NSArray *)proposedServices{
// Find and the services you want
NSMutableArray *newProposedServices = [[NSMutableArray alloc] initWithCapacity:5];
for (NSSharingService *sharingService in proposedServices) {
if ([[sharingService title] isEqualToString:#"Email"] || [[sharingService title] isEqualToString:#"Message"]) {
[newProposedServices addObject:sharingService];
}
}
NSArray *services = newProposedServices;
NSSharingService *customService = [[NSSharingService alloc] initWithTitle:#"Print" image:[NSImage imageNamed:#"PrintImage"] alternateImage:nil handler:^{
// Do whatever
}];
services = [services arrayByAddingObject:customService];
return services;
}

Answer 2

Comparing a proposed service to a new named instance works. Here's a trivial Swift code from my project:
let excludedNames = [
NSSharingServiceNamePostOnFacebook,
NSSharingServiceNamePostOnTwitter,
]
var excludedServices = [NSSharingService]()
for name in excludedNames {
if let service = NSSharingService(named: name) {
excludedServices += [service]
}
}
return proposedServices.filter {
!excludedServices.contains($0)
}
No need to use a private name property.

Answer 3

Rather then trying to say what you don't want simply return a list of what you do want.
- (NSArray<NSSharingService *> *)sharingServicePicker:(NSSharingServicePicker *)sharingServicePicker sharingServicesForItems:(NSArray *)items proposedSharingServices:(NSArray<NSSharingService *> *)proposedServices
{
NSArray *result = #[[NSSharingService sharingServiceNamed:NSSharingServiceNameComposeEmail], [NSSharingService sharingServiceNamed:NSSharingServiceNameComposeMessage]];
return result;
}

Answer 4

A slightly different approach via proposedSharingServices:
  
- (NSArray*)sharingServicePicker:(NSSharingServicePicker *)sharingServicePicker sharingServicesForItems:(NSArray *)items proposedSharingServices:(NSArray *)proposedServices {
NSArray *excludedServices = #[NSSharingServiceNamePostOnFacebook,
NSSharingServiceNamePostOnTwitter];
NSArray *sharingServices = [proposedServices filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:#"NOT (name IN %#)", excludedServices]];
return sharingServices;
}

Answer 5

Here's a better way - no private API access required.
NSArray *excludedServices = #[NSSharingServiceNamePostOnFacebook,
NSSharingServiceNamePostOnTwitter];
NSMutableArray *includedServices = [[NSMutableArray alloc] init];
for (NSSharingService *service in proposedServices) {
if ([excludedServices indexOfObject:service] == NSNotFound) {
[includedServices addObject:service];
}
}
return includedServices;