Module: Rum::KeyReader

Extended by:
KeyReader
Included in:
KeyReader
Defined in:
lib/rum/help.rb

Constant Summary collapse

Hook = 
proc do
  @pass_key = false
  if @key.modifier?
    if @down
      KeyReader.pressed_modifiers << @key
    elsif seen_key = KeyReader.pressed_modifiers.delete(@key)
      if @key == @last_key
        KeyReader.stop(@key, @pressed_modifiers)
      elsif @pressed_modifiers.values.compact.empty?
        KeyReader.stop
      end
    else
      @pass_key = true
    end
  elsif @down and not @was_executed[@key]
    KeyReader.stop(@key, @pressed_modifiers)
  end
end

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#pressed_modifiers ⇒ Object

Returns the value of attribute pressed_modifiers.



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# File 'lib/rum/help.rb', line 39

def pressed_modifiers
  @pressed_modifiers
end

Instance Method Details

#add_hooks ⇒ Object 



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# File 'lib/rum/help.rb', line 76

def add_hooks
  @hotkey_processor.add_hook Hook
  Action.hook = lambda { |action| } # Ignore Actions.
end

#remove_hooks ⇒ Object 



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# File 'lib/rum/help.rb', line 81

def remove_hooks
  @hotkey_processor.remove_hook Hook
  Action.hook = nil
end

#start(hotkey_processor, proc) ⇒ Object 



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# File 'lib/rum/help.rb', line 60

def start(hotkey_processor, proc)
  @hotkey_processor = hotkey_processor
  @proc = proc
  @pressed_modifiers = []
  add_hooks
end

#stop(key = nil, modifiers = nil) ⇒ Object 



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# File 'lib/rum/help.rb', line 67

def stop key=nil, modifiers=nil
  if key
    modifiers = modifiers.keys.select { |key| modifiers[key] }
    key = Hotkey.new(key, modifiers)
  end
  remove_hooks
  @proc.call(key)
end