🚀 go-pugleaf

In GNU Emacs 19.25.1 of Wed Aug 31 1994 on opus (mab-next-ns3)

This isn't really a bug, but a feature that would aid in a great many
things.  There needs to be a hook that gets called anytime the
currently selected buffer changes.  Why?  Well, I have two reasons.

 1)  I'm running the NeXTSTEP port of Emacs 19, and it has the ability
     to change the icon that a frame displays when miniaturized.  The
     frame's icon is one of the frame-parameters.  The problem is
     that, though the icons match a variety of file extensions,
     there's no way to change the icon when the currently active
     buffer changes.  A switch-buffer-hook would provide this.

 2)  When selecting a region, it can be awfully confusing.  The cursor
     (at least on this setup) looks identical to the region, thus
     making it appear that the region is one character larger or
     smaller than it actually is.  Now I can change the cursor in the
     activate-mark-hook and deactivate-mark-hook so that it either
     disappears or changes appearance, but then when I switch buffers
     without deactivating the mark, the cursor is still in its altered
     state.  With a switch-buffer-hook, I could determine when I
     needed to return the cursor to its original appearance.

These are just the two examples I've come up with.  I'm sure there are
many more (allowing users to change the title of a frame to match the
buffer name even when there's only one frame is another possibility).
This doesn't seem like it would be too difficult to implement, either.

What say you guys?  Here's hopin'...
Joe