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

[Peter Muir]

  User: pmuir   
  Date: 07/05/08 10:07:25

  Added:       seam-ui-cdk/jboss-seam-ui/src/main/java/org/jboss/seam/ui/util 
                        Decoration.java
  Log:
  Updates for CDK port
  
  Revision  Changes    Path
  1.1      date: 2007/05/08 14:07:25;  author: pmuir;  state: Exp;jboss-seam/seam-ui-cdk/jboss-seam-ui/src/main/java/org/jboss/seam/ui/util/Decoration.java
  
  Index: Decoration.java
  ===================================================================
  package org.jboss.seam.ui.util;
  
  import javax.faces.component.EditableValueHolder;
  import javax.faces.component.UIComponent;
  import javax.faces.context.FacesContext;
  
  import org.jboss.seam.ui.UIDecorate;
  
  public class Decoration
  {
  
     /**
      * A depth-first search for a rendered EditableValueHolder
      * @param component UIComponent to start search at
      * @return The found EditableValueHolder, null if none found
      */
     public static UIComponent getEditableValueHolder(UIComponent component)
     {
        if (component instanceof EditableValueHolder)
        {
           return component.isRendered() ? component : null;
        }
        for (Object child: component.getChildren())
        {
           if (child instanceof UIComponent)
           {
              UIComponent evh = getEditableValueHolder( (UIComponent) child);
              if (evh!=null) return evh;
           }
        }
        return null;
     }
  
     /**
      * A depth-first search for any FacesMessages on rendered EditableValueHolders
      * @param component UIComponent to start search at
      * @return true if any FacesMessages were found
      * 
      */
     public static boolean isComponentHasFacesMessages(UIComponent component, FacesContext context)
     {
        if ( !component.isRendered() ) return false;
        
        if ( component instanceof EditableValueHolder )
        {
           if ( ! ( (EditableValueHolder) component ).isValid() ) return true;
        }
  
        for (Object child: component.getChildren())
        {
           if (child instanceof UIComponent)
           {
              boolean message = isComponentHasFacesMessages( (UIComponent) child, context );
              if (message) return true;
           }
        }
        return false;
     }
  
     /**
      * A depth-first search for any required, rendered EditableValueHolders
      * @param component UIComponent to start search at
      * @return true if any FacesMessages were found
      * 
      */
     public static boolean isComponentRequired(UIComponent component, FacesContext context)
     {
        if ( !component.isRendered() ) return false;
        
        if ( component instanceof EditableValueHolder )
        {
           if (  ( (EditableValueHolder) component ).isRequired() ) return true;
        }
  
        for (Object child: component.getChildren())
        {
           if (child instanceof UIComponent)
           {
              boolean required = isComponentRequired( (UIComponent) child, context );
              if (required) return true;
           }
        }
        return false;
     }
     
     public static String getInputId(UIComponent cmp)
     {
        String forId = cmp instanceof UIDecorate ?
                 ( (UIDecorate) cmp ).getFor() : null;
        if (forId==null)
        {
           UIComponent evh = getEditableValueHolder(cmp);
           return evh==null ? null : evh.getId();
        }
        else
        {
           return forId;
        }
     }
     
  }