README


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The indicator service file format
=================================

Unity's panel finds out about indicator by looking at indicator service
files in `/usr/share/unity/indicators`. These files have to have the same
name as the well-known D-Bus name that the corresponding service owns.

An indicator file is a normal key file (like desktop files).  It must have
an `[Indicator Service]` section, that contains the service's name
(`Name`) and optionally the object path at which its action group is found
(`ObjectPath`). For example:

  [Indicator Service]
  Name=indicator-example
  ObjectPath=/com/canonical/indicator/example

An indicator can only export one action group, but a menu for each profile
("desktop", "greeter", "phone") supports. There must be a section for each
of those profiles, containing the object path on which the menu is
exported:

  [desktop]
  ObjectPath=/com/canonical/indicator/example/desktop

  [greeter]
  ObjectPath=/com/canonical/indicator/example/desktop

  [phone]
  ObjectPath=/com/canonical/indicator/example/phone

Object paths can be reused for different profiles (the greeter uses the
same menu as the desktop in the above example).

There are no fallbacks. If a profile is not mentioned in the service file,
the indicator will not show up for that profile.