[jboss-user] [JBoss Seam] - Re: Seam and Richfaces : Drag and Drop Problem

[stu2]

I'm also using DnD from Richfaces, and just like you started with a simple example to explore it.  It's working fine for me (also latest Seam from CVS) so I'll post what I have in case it helps you out.

Here's the xhtml:


  | <!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
  |                       "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  | <ui:composition xmlns="http://www.w3.org/1999/xhtml"
  | 	xmlns:s="http://jboss.com/products/seam/taglib"
  | 	xmlns:ui="http://java.sun.com/jsf/facelets"
  | 	xmlns:f="http://java.sun.com/jsf/core"
  | 	xmlns:h="http://java.sun.com/jsf/html"
  |     xmlns:a="https://ajax4jsf.dev.java.net/ajax"
  | 	xmlns:rich="http://richfaces.ajax4jsf.org/rich"
  | 	template="/themes/#{globalPrefs.themeName}/template.xhtml">
  | 
  | 	<ui:define name="content">
  | 		<h1>Drag and Drop exploration</h1>
  | 
  | <a:outputPanel id="messages">
  | 	<h:messages styleClass="message" />
  | </a:outputPanel>
  | 	<rich:dragIndicator id="indicator" />
  | 	<h:form id="dand">
  | 
  | 	<h:panelGrid columnClasses="panelc" columns="4" width="100%">
  | 
  | 	<rich:panel>
  | 		<f:facet name="header">
  | 			<h:outputText value="Source List!" />
  | 		</f:facet>
  | 		<h:dataTable id="src" columns="1" value="#{dand.genders}" var="fm">
  | 			<h:column>
  | 				<a:outputPanel style="border:1px solid gray;padding:2px;"
  | 					layout="block">
  | 					<rich:dragSupport dragIndicator=":indicator"
  | 						dragType="gender" dragValue="#{fm}">
  | 						<rich:dndParam name="label" value="#{fm}" />
  | 					</rich:dragSupport>
  | 					#{fm}
  | 				</a:outputPanel>
  | 			</h:column>
  | 		</h:dataTable>
  | 	</rich:panel>
  | 
  | 	<rich:panel>
  | 		<f:facet name="header">
  | 			<h:outputText value="CDM Fields" />
  | 		</f:facet>
  | 
  | 		<h:dataTable id="cdmtable" columns="1"
  | 			value="#{dand.fields}" var="fm">
  | 			<h:column>
  | 				<a:outputPanel style="border:1px solid gray;padding:2px;"
  | 					layout="block">
  | 					<rich:dropSupport acceptedTypes="gender" dropValue="#{fm}"
  | 						dropListener="#{dand.dragged}" reRender="messages">
  | 					</rich:dropSupport>
  | 					#{fm}
  | 				</a:outputPanel>
  | 			</h:column>
  | 		</h:dataTable>
  | 	</rich:panel>
  | 
  | </h:panelGrid>
  | 		</h:form>
  | 
  | 	</ui:define>
  | </ui:composition>
  | 

Here's the SLSB:


  | package com.fb.core.action;
  | 
  | import java.util.ArrayList;
  | import java.util.EnumSet;
  | import java.util.List;
  | 
  | import javax.ejb.Stateless;
  | 
  | import org.ajax4jsf.dnd.Dropzone;
  | import org.ajax4jsf.dnd.event.DropEvent;
  | import org.jboss.seam.annotations.Name;
  | import org.jboss.seam.annotations.datamodel.DataModel;
  | import org.jboss.seam.framework.EntityController;
  | 
  | import com.fb.core.model.cdm.CdmField;
  | import com.fb.core.model.cdm.Gender;
  | 
  | @Stateless
  | @Name("dand")
  | public class DandDAction extends EntityController implements DanD {
  | 	
  |     private static final long serialVersionUID = -5492165330283497323L;
  | 
  |     @DataModel
  |     private final List<CdmField> fields;
  |     @DataModel
  |     private final List<Gender> genders;
  |     
  |     public DandDAction() {
  |     	fields = new ArrayList<CdmField>();
  |     	fields.addAll(EnumSet.allOf(CdmField.class));
  |     	genders = new ArrayList<Gender>();
  |     	genders.addAll(EnumSet.allOf(Gender.class));
  |     }
  |     
  |     public void dragged(DropEvent dropEvent) {
  |     	Dropzone dropzone = (Dropzone) dropEvent.getComponent();
  |     	addFacesMessage("Dragged #0 with dragType #1 onto dropValue #2", 
  |     			dropEvent.getDragValue(), dropEvent.getDragType(), dropzone.getDropValue());
  |     }
  | 
  | 	public List<CdmField> getFields() {
  | 		return fields;
  | 	}
  | 
  | 	public List<Gender> getGenders() {
  | 		return genders;
  | 	}
  |     
  | }
  | 

There wasn't really much else to it.  The two lists in the SLSB just contain enums.

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