Module: Vigilem::Evdev::KeyMapCache

Extended by:
KeyMapCache
Included in:
KeyMapCache
Defined in:
lib/vigilem/evdev/key_map_cache.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#default_filename ⇒ String

Returns:

  • (String) 


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# File 'lib/vigilem/evdev/key_map_cache.rb', line 17

def default_filename
  @default_filename ||= 'key_map_cache'
end

#default_path ⇒ String

Returns:

  • (String) 


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# File 'lib/vigilem/evdev/key_map_cache.rb', line 23

def default_path
  @default_path ||= begin
    path = Vigilem::Evdev.data_dir
    Dir.mkdir(path) unless test ?d, path
    File.join(path, default_filename)
  end
end

#key_map ⇒ Object

Returns the value of attribute key_map.



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# File 'lib/vigilem/evdev/key_map_cache.rb', line 11

def key_map
  @key_map
end

Instance Method Details

#dump(key_map, path = default_path) ⇒ Object Also known as: cache

Parameters:

  • path (String) (defaults to: default_path)

Returns:



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# File 'lib/vigilem/evdev/key_map_cache.rb', line 40

def dump(key_map, path=default_path)
  File.open(path, 'w') {|f| f.write(Marshal.dump(key_map)) }
end

#exists? ⇒ TrueClass || FalseClass

Returns:

  • (TrueClass || FalseClass) 


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# File 'lib/vigilem/evdev/key_map_cache.rb', line 33

def exists?
  File.exists? default_path
end

#restore(path = default_path) ⇒ KeyMap || nil

Parameters:

  • path (String) (defaults to: default_path)

Returns:

  • (KeyMap || nil) 


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# File 'lib/vigilem/evdev/key_map_cache.rb', line 47

def restore(path=default_path)
  key_map = Marshal.restore(File.binread(path))
end