app/templates/widget/_widgetWrapper.hbs

<div {{bind-attr class=":widget-title-topology isOpened:opened"}} >

  <span class="widget-title-wrapper" {{bind-attr title=widgetName}}>{{widgetName}}</span>
	
        <span class="btn-close" {{action deleteWidget widgetId target="view"}}>
            <a href="#" {{ action cancel target=view }} >&times;</a>
  	</span>
	<span {{bind-attr class=":navigation-icon-widget isOpened:opened"}} {{action toggleWidget target="view"}}></span>
		
</div>