[mappingPopup.menu removeAllItems];
for (NJMapping *mapping in mappingsController) {
NSMenuItem *item = [[NSMenuItem alloc] initWithTitle:mapping.name
action:@selector(mappingChosen:)
keyEquivalent:@""];
item.target = self;
[mappingPopup.menu removeAllItems];
for (NJMapping *mapping in mappingsController) {
NSMenuItem *item = [[NSMenuItem alloc] initWithTitle:mapping.name
action:@selector(mappingChosen:)
keyEquivalent:@""];
item.target = self;