Cocoa: Context Menu on Source List Data - Not Headers

Question

I connected a menu to the tableview, but the problem is that the context menu is also shown when I right click on the headers in the source list. is there any way to disable this?

So when isLeaf returns false (group header), it should not show the menu.

Answer 1

As for me the best place for menu logic is delegate, so you can subclass NSTableView and make something like this (in this example there is NSOutlineView but it doesn't meter)

@protocol MYOutlineViewDelegate;

@interface MYOutlineView : NSOutlineView

@property (assign) id<MYOutlineViewDelegate> delegate;

@end

@protocol MYOutlineViewDelegate <NSOutlineViewDelegate>

- (NSMenu *)outlineView:(NSOutlineView *)outlineView menuForItem:(id)item;

@end


@implementation MYOutlineView

@dynamic delegate;

- (NSMenu *)menuForEvent:(NSEvent *)theEvent
{
    NSMenu* menu = nil;

    NSPoint clickPoint = [self convertPoint:[theEvent locationInWindow] fromView:nil];
    id item = [self itemAtRow:[self rowAtPoint:point]];

    if([self.delegate respondsToSelector:@selector(outlineView:menuForItem:)]) {
        menu = [self.delegate outlineView:self menuForItem:item];
    }

    return menu;
}

@end

Answer 2

I’d try setting yourself up as a delegate of the menu and in - (void)menuNeedsUpdate:(NSMenu*)menu; remove all the items.

If that fails, just subclass NSTableView and implement - (NSMenu *)menuForEvent:(NSEvent *)event; as you like.