Add Navigation Buttons to NSTouchBar

Xcode and Safari sport Touch Bar items to navigate back and forth. Have a close look: When you put two NSTouchBarItems next to each other, there usually is a gap. Between the navigation controls, there is a mere hairline divider, but not the regular fixed-width space. They are not realized via NSSegmentedControl, though. Compare the navigation buttons with the system-wide controls far to the right: volume, brightness, play/pause. (I’m listening to the 1980s Pop Radio on Apple Music at the moment, in case you’re curious.) The system controls are a NSSegmentedControl. They have rounded corners for the whole control, while the navigation buttons have rounded corners for every button. Also, the navigation buttons have the default button width.

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Do Not Apply Code Heuristics When You Need a Broader Perspective

You can only improve things inside the frame you pick. If your frame is too narrow for the problem you try to solve, you cannot properly take everything into perspective. That’s a trivial statement as it’s only re-stating the same thing, but it’s worth stressing. Apply this to code. If you focus on code heuristics to improve your code base, you cannot improve the structure of your program. Even though the structure is manifested as code, it’s not code you should be thinking about. It’s concepts. Code is just the textual representation you stare at all day. Structure is what the imaginary entities of your invention bring forth.

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