Hi, I have just finished the first version of an open source project called “Social Managers for Mac”. I wanted to have more control on the behavior and look/feel of the sharing dialogs in OSX, so I implemented a set of social managers and associated dialogs for posting messages with a iOS7 style.
The sharing dialogs are complete with account selection for Twitter, audience selection for Facebook, and location. The social managers allow (at the moment) to get the user’s information, fetch the user timeline, and post messages with our without images and location.
You can get the code in my Github. If you find it useful let me know!