How to extend NSView, overwrite drawRect

[matths]

This is not really a bug, but more of a question:

I'm just not able to find out, how to correctly inherit from NSView and overwrite the drawRect method, getting the rect parameter and call drawRect of super. Any help or hint would be welcome!

I extended the basic example by this:

var RedRectView = ObjC.NSView.extend('RedRectView');
RedRectView.addMethod('drawRect:', 'v@:@', function (self, _cmd, rect) {
//  console.log(rect); // already crashes
//  ObjC.NSColor('yellowColor')('set');
//  ObjC.NSRectFill(ObjC.NSRectMake(0,0,100,100));

    // [super drawRect:rect]; // how to call super?
//  RedRectView.getSuperclass()('drawRect', self);
});
RedRectView.register();

var redRectView = RedRectView('alloc')('initWithFrame', ObjC.NSMakeRect(0,0,100,100));
window('contentView')('addSubview', redRectView);
window('makeKeyAndOrderFront', null);

But as soon as I try some of these, the App crashes with a "Segmentation fault: 11".

[TooTallNate]

Can you give a full example to try? Specifically defining ObjC (though I can guess what that one is) and the window variable in particular. Thanks!

[matths]

I've put together a gist:
https://gist.github.com/matths/fe075e431781dc933471

I probably do something stupid, so you can hopefully help within minutes. :P ;)

[trevorlinton]

@matths

See the comment I left on your gist, there were only some minor changes but it worked fine for me.

[trevorlinton]

@matths nevermind, it seems its intermittently failing and succeeding, i'll take a closer look.

#42

Creating this as a separate bug that's specific to the unit test, there may be more than one.

[TooTallNate]

Gonna close this one I think, now that #42 is tracking the seg fault. @trevorlinton's updated gist does indeed work for me (periodically).