Homepage: https://github.com/purcell/osx-location
Author: Steve Purcell
Updated:
Watch and respond to changes in geographical location on OS X
This library uses OS X CoreLocation services to put useful
information into variables `osx-location-latitude' and
`osx-location-longitude'.
To use, run `osx-location-watch', which starts monitoring the
location asynchronously.
To add code which responds to location changes, use
`osx-location-changed-hook'. For example, you might add a hook
function which updates `calendar-latitude' and `calendar-longitude'
(defined in the built-in library `solar').
Hook functions take no arguments; when your hook function runs, it
can use the freshly-updated values of `osx-location-latitude' and
`osx-location-longitude'.
Here's an example:
(eval-after-load 'osx-location
'(when (eq system-type 'darwin)
(add-hook 'osx-location-changed-hook
(lambda ()
(setq calendar-latitude osx-location-latitude
calendar-longitude osx-location-longitude
calendar-location-name (format "%s, %s" osx-location-latitude osx-location-longitude))))))
Comes bundled with a required executable called
EmacsLocationHelper, which does the communication with
CoreServices; if you don't trust me, you can build it yourself from
the instructions at https://gist.github.com/1416248 or using the
bundled Makefile.