[jboss-cvs] jboss-seam/ui/src/main/java/org/jboss/seam/ui/renderkit ...

[Peter Muir]

  User: pmuir   
  Date: 07/11/18 09:57:19

  Added:       ui/src/main/java/org/jboss/seam/ui/renderkit 
                        DefaultActionRendererBase.java
  Log:
  JBSEAM-1893
  
  Revision  Changes    Path
  1.1      date: 2007/11/18 14:57:19;  author: pmuir;  state: Exp;jboss-seam/ui/src/main/java/org/jboss/seam/ui/renderkit/DefaultActionRendererBase.java
  
  Index: DefaultActionRendererBase.java
  ===================================================================
  package org.jboss.seam.ui.renderkit;
  
  import static org.jboss.seam.ui.util.HTML.SCRIPT_ELEM;
  import static org.jboss.seam.ui.util.HTML.SCRIPT_LANGUAGE_ATTR;
  import static org.jboss.seam.ui.util.HTML.SCRIPT_LANGUAGE_JAVASCRIPT;
  import static org.jboss.seam.ui.util.HTML.SCRIPT_TYPE_ATTR;
  import static org.jboss.seam.ui.util.HTML.SCRIPT_TYPE_TEXT_JAVASCRIPT;
  
  import java.io.IOException;
  
  import javax.faces.component.UIComponent;
  import javax.faces.component.UIForm;
  import javax.faces.component.UIOutput;
  import javax.faces.component.UIViewRoot;
  import javax.faces.context.FacesContext;
  import javax.faces.context.ResponseWriter;
  
  import org.jboss.seam.log.LogProvider;
  import org.jboss.seam.log.Logging;
  import org.jboss.seam.ui.util.cdk.RendererBase;
  
  /**
   * @author Pete Muir
   * @author sim
   *
   */
  public class DefaultActionRendererBase extends RendererBase
  {
     
     public static final String MARK = "org.jboss.seam.ui.DefaultAction";
     
     private static LogProvider log = Logging.getLogProvider(DefaultActionRendererBase.class);
   
     @Override
     protected void doEncodeEnd(ResponseWriter writer, FacesContext context,
           UIComponent component) throws IOException
     {
        UIComponent actionComponent = component.getParent();
        String actionComponentId = actionComponent.getClientId(context); 
        UIForm form = getForm(actionComponent);
        if (form != null) 
        { 
           String formId = form.getClientId(context);
           writer.startElement(SCRIPT_ELEM, component);
           writer.writeAttribute(SCRIPT_LANGUAGE_ATTR, SCRIPT_LANGUAGE_JAVASCRIPT, SCRIPT_LANGUAGE_ATTR);
           writer.writeAttribute(SCRIPT_TYPE_ATTR, SCRIPT_TYPE_TEXT_JAVASCRIPT, SCRIPT_TYPE_ATTR);
           if (actionComponent.getId().startsWith(UIViewRoot.UNIQUE_ID_PREFIX))
           {
              log.warn("Must set an id for the default action source");
           }
           if (form.getAttributes().containsKey(MARK))
           {
              if (!form.getAttributes().get(MARK).equals(component.getClientId(context)))
              {
                 log.warn("Can only specify one default action per form");
              }
           }
           else
           {
              form.getAttributes().put(MARK, component.getClientId(context));
           }
           String functionBody = 
              "{var keycode;" + 
              "if (window.event) keycode = window.event.keyCode;" +
              "else if (event) keycode = event.which;" +
              "else return true;" + 
              "if (keycode == 13) " +
              "{ document.getElementById('" + actionComponentId + "').click();return false; } " +
              "else return true; }";
           String functionCode = 
              "document.forms['" + formId + "'].onkeypress = " +
              "new Function(\"event\", \"" + functionBody + "\");"; 
           writer.write(functionCode);
           writer.endElement("script");
        }
     }
        
     private UIForm getForm(UIComponent component) {
         while (component != null) {
            if (component instanceof UIForm) {
                 break;
             }
             component = component.getParent();
         }
         return (UIForm) component;
     }
  
     @Override
     protected Class getComponentClass()
     {
        return UIOutput.class;
     }
  }