Method: TkEvent::Event#generate

Defined in:
lib/tk/event.rb

#generate(win, modkeys = {}) ⇒ Object 



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# File 'lib/tk/event.rb', line 253

def generate(win, modkeys={})
  klass = self.class

  if modkeys.has_key?(:type) || modkeys.has_key?('type')
    modkeys = TkComm._symbolkey2str(modkeys)
    type_id = modkeys.delete('type')
  else
    type_id = self.type
  end

  type_name  = klass.type_name(type_id)
  unless type_name
    fail RuntimeError, "type_id #{type_id} is invalid"
  end

  group_flag = klass.group_flag(type_id)

  opts = valid_for_generate(group_flag)

  modkeys.each{|key, val|
    if val
      opts[key.to_s] = val
    else
      opts.delete(key.to_s)
    end
  }

  if group_flag != Grp::KEY
    Tk.event_generate(win, type_name, opts)
  else
    # If type is KEY event, focus should be set to target widget.
    # If not set, original widget will get the same event.
    # That will make infinite loop.
    w = Tk.tk_call_without_enc('focus')
    begin
      Tk.tk_call_without_enc('focus', win)
      Tk.event_generate(win, type_name, opts)
    ensure
      Tk.tk_call_without_enc('focus', w)
    end
  end
end