How to get an event.target from event on input helper in ember

iam using input helper in ember for binding attributes value

<div class="form-group profile-desa-component-form-group">
          <label class="col-sm-4 control-label"></label>
          <div class="col-sm-8 no-padding">
            
               <- this is my input helper
            
              <input readonly class="form-control btn-no-corner readonly" type="text" value=>
            
          </div>
          
        </div>

i just want to pass an event object from key-press = onKeyPressShowPanel to the controller so i can use event.target to manipulate some element via jquery snipet. this is my onKeyPressShowPanel action in controller

onKeyPressShowPanel(event){
      this.debug(event);
    },

unfortunately the event that i pass is a value that come from value = alamat. how to get an event.target from event on input helper so i can manipulate some element using jquery. Any answers would be helpfull for me.. thank you :)