Class: XlibObj::Window::EventHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/window/event_handler.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(display, window) ⇒ EventHandler

Returns a new instance of EventHandler.



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# File 'lib/window/event_handler.rb', line 25

def initialize(display, window)
  @display = display
  @window = window
  @event_handlers = {}
end

Instance Attribute Details

#display ⇒ Object (readonly)

Returns the value of attribute display.



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# File 'lib/window/event_handler.rb', line 31

def display
  @display
end

#window ⇒ Object (readonly)

Returns the value of attribute window.



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# File 'lib/window/event_handler.rb', line 31

def window
  @window
end

Class Method Details

.remove(display, window) ⇒ Object 



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# File 'lib/window/event_handler.rb', line 20

def remove(display, window)
  @instances[display].delete(window.id) if @instances[display]
end

.singleton(display, window) ⇒ Object 



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# File 'lib/window/event_handler.rb', line 15

def singleton(display, window)
  @instances[display] ||= {}
  @instances[display][window.id] ||= new(display, window)
end

Instance Method Details

#destroy ⇒ Object 



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# File 'lib/window/event_handler.rb', line 52

def destroy
  self.class.remove(@display, @window)
end

#handle(event) ⇒ Object 



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# File 'lib/window/event_handler.rb', line 43

def handle(event)
  # duplicate the event handlers hash so it can be modified in one of
  # its handlers
  @event_handlers.dup.each do |mask, handlers|
    next unless handlers[event.name]
    handlers[event.name].dup.each{ |handler| handler.call(event) }
  end
end

#off(mask, event, handler = nil) ⇒ Object 



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# File 'lib/window/event_handler.rb', line 38

def off(mask, event, handler = nil)
  remove_event_handler(mask, event, handler)
  remove_event_mask(mask)
end

#on(mask, event, &handler) ⇒ Object 



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# File 'lib/window/event_handler.rb', line 33

def on(mask, event, &handler)
  add_event_mask(mask)
  add_event_handler(mask, event, &handler)
end