Tray icon right-click event

[sindresorhus]

Copied from nwjs#930

Many tray (menubar) apps on OS X have different behavior on click and right-click.

Some don't show a menu when clicked, but instead changes the icon and does an action, but shows a menu for eg. Preferences and Quit on right-click:

Normal:

Clicked:

Right-clicked:

Unfortunately there isn't a built-in method to do right-click directly on a NSStatusItem, but it's easy to achieve it with a custom view. There's a handy library that handles it for you: https://github.com/heardrwt/RHStatusItemView

This might be possible on Linux/Windows too, I haven't researched, but I'm interested in OS X support.

[trevorlinton]

Shouldn't be a difficult item to add.

[paolooo]

+1