On Mar 26, 2015, at 16:00 , Graham Cox <graham....@bigpond.com> wrote: > > Your requirement isn't clear - do you want a sheet to appear as if unattached > to a host window, just floating in space? Even if you can achieve it, users > will simply assume your app is buggy. Ideas like this are never seen in the > wild for good reason.
I’ve been following this thread from the beginning, and have come to the conclusion that the OP was never interested in an alert or a sheet as such. I think what’s being asked for is just an anchored app- or window-modal floating panel that displays an error message. There really isn’t a standard UI element of this kind (that I can think of). The nearest would be a non-dismissable popover anchored at the point of the error. If the intention is that the “alert” should be app-modal, then a modal NSAlert window has the correct behavior, but there are consistency reasons for not moving it from its standard position. If the intention is that the “alert” should be window-modal, and positioned relative to the window, then a sheet with custom positioning (window:willPositionSheet:usingRect:) would have the correct behavior, but AFAIK custom sheet positioning is basically never done. (And I don’t know that you can force custom positioning on a NSAlert sheet.) Without knowing more context, I’m not sure NSPopover is the right thing either. If not, it probably ought to be some kind of custom NSPanel. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
