This hack is an enhancement to the popular Aaron shareware extension (which was originally written for the MacHack '95 Best Hack Contest). Aaron gives your Mac a complete user interface overhaul, giving it the user experience of the Mac OS 8 (formerly Copland) default theme. But that is old news...
This hack adds "pop-up windows"--sometimes called "tabbed folders" or "drawers"--another cool Mac OS 8 feature. If you drag a Finder window to the bottom of the screen, as it approaches the bottom the window turns into a small tab. Once a window is collapsed to a tab, you can either drag it horizontally to reposition it at the bottom of the screen, or you can drag it vertically like a drawer. If you drag the tabbed window far enough up, you will tear it away from the bottom of the screen and it will become a normal window again.
When a window is in its drawer state, clicking on the tab slides the drawer open or closed. For another feature, if you drag an item over the collapsed tab, the drawer opens completely, letting you drop your item into the drawer or onto any of the items in the drawer. When you drag away from the drawer, it slides closed.
This version of Aaron is not intended for public release, due to legal issues (i.e., Apple has asked me not to distribute it, and they have lots of lawyers).
For information on the normal Aaron extension, as well as my many other shareware programs, visit my web site: <http://greg.math.harvard.edu/>
