Class: R3Status::Blocks::KeyboardLayout

Inherits:
Base
  • Object
show all
Defined in:
lib/r3status/blocks/keyboard_layout.rb

Overview

A block that acts as a keyboard layout indicator.

States

There are no constant states. A state is the current keyboard layout, as specified by the system. (e.g. :us for US English, :ru for Russian)

Format values

8 %{val}, %{sym}: The current language symbol.

Constant Summary

Constants inherited from Base

Base::DEFAULT_COLOR, Base::DEFAULT_FORMAT

Instance Attribute Summary

Attributes inherited from Base

#clicked_block, #colors, #formats, #full_text, #max_length, #name, #text_color

Instance Method Summary collapse

Methods inherited from Base

#clicked, #color, #color=, #format, #format=, #terminate, #to_s

Constructor Details

#initialize(**args, &block) ⇒ KeyboardLayout

Creates a new instance of this class. If a block is passed, it will be stored and yielded when the block is clicked.



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# File 'lib/r3status/blocks/keyboard_layout.rb', line 14

def initialize(**args, &block)
  super(args, &block)
end

Instance Method Details

#command?(command) ⇒ Boolean

Determines if a shell command exists.

Returns:

  • (Boolean) 


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# File 'lib/r3status/blocks/keyboard_layout.rb', line 35

def command?(command)
   system("which #{command} > /dev/null 2>&1")
end

#state ⇒ Object

Returns the current state of the block.



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# File 'lib/r3status/blocks/keyboard_layout.rb', line 26

def state
  if command? "xkblayout-state"
    `xkblayout-state print %s`
  else
    `setxkbmap -query | awk -F"(|[ ]+)" '/layout:/ { print $2 }'`
  end.chomp.to_sym
end

#update ⇒ Object

Updates the text and color of this block.



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# File 'lib/r3status/blocks/keyboard_layout.rb', line 19

def update
  sym = state
  @full_text = formats[sym] % {val: sym, sym: sym}
  @text_color = colors[sym]
end