How do I disable drag and drop on NSTextView? -

i have nswindowcontroller contains several nsviewcontrollers. universally accept drag , drop events nswindowcontroller class , not intercepted other views such nstextview (contained in nsviewcontroller)

how can tell nstextview ignore drag & drop event?

i found out there 2 things needed skip past nstextview's interception of drag , drop event.

in nsviewcontroller containing nstextview:

- (void)awakefromnib {     [self nodraginview:self.view]; }  - (void)nodraginview:(nsview *)view {     (nsview *subview in view.subviews)     {         [subview unregisterdraggedtypes];         if (subview.subviews.count) [self nodraginview:subview];     } } 

now subclass nstextview , add method:

- (nsarray *)acceptabledragtypes {     return nil; } 

the nstextview should ignore drag , drop event , leave handled nswindow.