Class: Rum::HotkeyProcessor

Inherits:
Object
  • Object
show all
Defined in:
lib/rum/hotkey_core.rb,
lib/rum/windows.rb

Overview

TODO: Needs refactoring.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(hotkey_set) ⇒ HotkeyProcessor

Returns a new instance of HotkeyProcessor.



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# File 'lib/rum/hotkey_core.rb', line 392

def initialize hotkey_set
  @hotkey_set = hotkey_set
  @modifiers = @hotkey_set.modifiers
  @layout = @hotkey_set.layout
  @pressed_modifiers = {}
  @pressed_core_modifier_ids = {}
  @was_executed = {}
  @key_signature = nil
  @hooks = []
  @pass_key = true

  @key = nil
  @last_key = nil
  @down = nil
  @last_event_up = nil
end

Instance Attribute Details

#hooks ⇒ Object (readonly)

Returns the value of attribute hooks.



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# File 'lib/rum/hotkey_core.rb', line 391

def hooks
  @hooks
end

#layout ⇒ Object (readonly)

Returns the value of attribute layout.



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# File 'lib/rum/hotkey_core.rb', line 391

def layout
  @layout
end

#pressed_modifiers ⇒ Object (readonly)

Returns the value of attribute pressed_modifiers.



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# File 'lib/rum/hotkey_core.rb', line 391

def pressed_modifiers
  @pressed_modifiers
end

Instance Method Details

#add_hook(hook = nil, &block) ⇒ Object 



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# File 'lib/rum/hotkey_core.rb', line 409

def add_hook(hook=nil, &block)
  hook ||= block
  @hooks.unshift hook
  hook
end

#execute(down, repeated) ⇒ Object 



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# File 'lib/rum/hotkey_core.rb', line 424

def execute(down, repeated)
  (hotkey = @hotkey_set.lookup(down, @key_signature)                 \
   and hotkey.execute(repeated)) or
  (hotkey = @hotkey_set.fuzzy_lookup(down, @key, @pressed_modifiers) \
   and hotkey.execute(repeated))
end

#inhibit_modifier_action ⇒ Object 



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# File 'lib/rum/windows.rb', line 19

def inhibit_modifier_action
  System.send_keypress @layout['control']
end

#key_signature(key) ⇒ Object 



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# File 'lib/rum/hotkey_core.rb', line 420

def key_signature key
  @modifiers.select { |modifier| @pressed_modifiers[modifier] } << key
end

#process_event(event) ⇒ Object 



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# File 'lib/rum/hotkey_core.rb', line 431

def process_event event
  puts event
  @key = @layout.lookup_key(event.id)
  @down = event.down?
  unless @key
    puts "Unknown Key\n"
    return true
  end
  modifier = @key.modifier?

  # Skip generating unnecessary key_signatures
  if modifier and @last_event_up or @key != @last_key
    @key_signature = key_signature(@key)
  end
  @last_event_up = !@down

  print "[#{@key_signature.map { |key| key.name.capitalize }.join(', ')}]"
  print ' (again)' if @key == @last_key; puts

  if @down
    repeated = @was_executed[@key]
    eat = @was_executed[@key] = true if execute(true, repeated)
    if repeated
      eat = true
    elsif modifier # if repeated, the modifier has already been added to pressed_modifiers
      @pressed_modifiers[@key] = true
      @pressed_core_modifier_ids[event.id] = true if @layout.core_modifiers[@key]
    end
  else #up
    @was_executed[@key] = true if execute(false, false)
    if modifier
      @pressed_modifiers[@key] = nil
      @pressed_core_modifier_ids[event.id] = nil if @layout.core_modifiers[@key]
      if @layout.action_modifiers[@key] and \
        (!@pass_key or @was_executed[@key])
        inhibit_modifier_action
      end
    end
    eat = @was_executed.delete(@key)
  end

  @pass_key = if modifier
                @layout.core_modifiers[@key]
              else
                !eat
              end
  @hooks.dup.each { |hook| instance_eval &hook }
  @last_key = @key
  puts
  @pass_key
end

#release_core_modifiers ⇒ Object 



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# File 'lib/rum/hotkey_core.rb', line 483

def release_core_modifiers
  @pressed_core_modifier_ids.each do |id, pressed|
    send_key_event_for_id id, false if pressed
  end
end

#remove_hook(hook) ⇒ Object

Return removed hook.



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# File 'lib/rum/hotkey_core.rb', line 416

def remove_hook(hook)
  @hooks.delete hook
end