Class: Breaktime::LinuxWinManager

Inherits:
Object
  • Object
show all
Defined in:
lib/breaktime/linux_win_manager.rb

Overview

Used to detect the Linux window manager.

This information is used to determine the default screensaver command.

Defined Under Namespace

Classes: ManagerUnknown

Constant Summary collapse

@@managers = 
{'kcmserver' => 'dcop kdesktop KScreensaverIface lock',
'gnome-session' => 'gnome-screensaver-command -a',
'xfce-mcs-manage' => 'xscreensaver-command --lock'}

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Attribute Details

#cmd ⇒ Object (readonly)

Returns the value of attribute cmd.



12
13
14
 
# File 'lib/breaktime/linux_win_manager.rb', line 12

def cmd
  @cmd
end

Class Method Details

.detect_command(log) ⇒ Object

Check the process list for known window manager services.

If the service is found, return the associated command for starting the screensaver.



18
19
20
21
22
23
24
25
26
27
 
# File 'lib/breaktime/linux_win_manager.rb', line 18

def self.detect_command(log)
  log.debug { "Checking for known window manager processes: #{@@managers.keys.join(", ")}" }
  lines = `ps -eo args|egrep "#{@@managers.keys.join("|")}"|grep -v "egrep"`.split "\n"

  lines.any? or raise ManagerUnknown, 'Unable to detect a known window manager'

  m = @@managers.keys.select {|k| lines.first.include? k}
  log.debug { "Found #{m.first}" }
  @@managers[m.first]
end