RegionListener

package sahaj.apps.vleadministration.view.bean;



import java.util.Map;
import javax.faces.context.FacesContext;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;

import oracle.adf.model.RegionBinding;
import oracle.adf.model.RegionContext;
import oracle.adf.model.RegionController;

import org.apache.myfaces.trinidad.render.ExtendedRenderKitService;
import org.apache.myfaces.trinidad.util.Service;


public class VleAdminAppPhaseListener implements RegionController  {
   
    public VleAdminAppPhaseListener(){
        
        }

    public boolean refreshRegion(RegionContext regionContext) {
      int refreshFlag=  regionContext.getRefreshFlag();
      
      FacesContext fctx = FacesContext.getCurrentInstance();
      //check internal request parameter
      Map requestMap = fctx.getExternalContext().getRequestMap();
      PhaseId currentPhase=(PhaseId)requestMap.get("oracle.adfinternal.view.faces.lifecycle.CURRENT_PHASE_ID");
      if(currentPhase.getOrdinal()==PhaseId.RENDER_RESPONSE.getOrdinal()){
      Object showPrintableBehavior =
          requestMap.get("oracle.adfinternal.view.faces.el.PrintablePage");
      if (showPrintableBehavior != null) {
          if (Boolean.TRUE == showPrintableBehavior) {
              ExtendedRenderKitService erks = null;
              erks =
              Service.getRenderKitService(fctx, ExtendedRenderKitService.class);
              //invoke JavaScript from the server
              erks.addScript(fctx, "window.print();");
         
          }
      }
        regionContext.getRegionBinding().refresh(refreshFlag);
      }
     
     return false;
    }

    public boolean validateRegion(RegionContext regionContext) {
       regionContext.getRegionBinding().validate();
        return false;
    }

    public boolean isRegionViewable(RegionContext regionContext) {
        
        return regionContext.getRegionBinding().isViewable();
    }

    public String getName() {
        return null;
    }
}