Class: Fusuma::Plugin::Remap::ModifierState

Inherits:
Object
  • Object
show all
Defined in:
lib/fusuma/plugin/remap/modifier_state.rb

Overview

Tracks the pressed state of modifier keys

Constant Summary collapse

MODIFIERS = 
Set.new(%w[
  LEFTCTRL RIGHTCTRL
  LEFTALT RIGHTALT
  LEFTSHIFT RIGHTSHIFT
  LEFTMETA RIGHTMETA
]).freeze

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ModifierState

Returns a new instance of ModifierState.



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# File 'lib/fusuma/plugin/remap/modifier_state.rb', line 17

def initialize
  @pressed = Set.new
end

Instance Method Details

#current_combination(key) ⇒ Object 



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# File 'lib/fusuma/plugin/remap/modifier_state.rb', line 30

def current_combination(key)
  return key if modifier?(key)

  modifiers = pressed_modifiers
  if modifiers.empty?
    key
  else
    "#{modifiers.join("+")}+#{key}"
  end
end

#modifier?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fusuma/plugin/remap/modifier_state.rb', line 45

def modifier?(key)
  MODIFIERS.include?(key)
end

#pressed_modifiers ⇒ Object 



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# File 'lib/fusuma/plugin/remap/modifier_state.rb', line 41

def pressed_modifiers
  @pressed.to_a.sort
end

#reset ⇒ Object 



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# File 'lib/fusuma/plugin/remap/modifier_state.rb', line 49

def reset
  @pressed.clear
end

#update(key, event_value) ⇒ Object 



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# File 'lib/fusuma/plugin/remap/modifier_state.rb', line 21

def update(key, event_value)
  return unless modifier?(key)

  case event_value
  when 1 then @pressed.add(key)
  when 0 then @pressed.delete(key)
  end
end