Drag-n-drop and rich:tree problem: drop listener is not invoked (RF 4.3.2.Final)

[yuri_]

Hi!

I have a problem with d-n-d support in rich:tree.

If the rich:dragSource is nested inside rich:treeNode the drop listener is never called.

The ajax event is fired and it has javax.faces.partial.event=drop param but the listener method is not invoked.

Plus, if I place the same dragSource outside the rich:tree it works fine.

The  snippet is:

      <rich:tree id="tree" value="#{organisationalSelectionDialog2.data}" var="item"

                  toggleType="ajax" nodeType="${item.type}" toggleListener="#{organisationalSelectionDialog2.toggleListener}" >

           <rich:treeNode type="LEAF" id="tree_leaf">

               <rich:panel id="p1">

                   <h:outputText value="[#{item.typeShortname}] #{item.name}"/>

               </rich:panel>

           </rich:treeNode>

            <rich:treeNode type="NOT-LEAF" id="tree_node" expanded="#{item.expanded}">

               <rich:panel id="p2">

                  <rich:dragSource type="orgTreeNode" dragValue="123" />

                   <rich:dropTarget id="dt" dropValue="#{item}" acceptedTypes="orgTreeNode" dropListener="#{organisationalSelectionDialog2.dropListener}"

                                    execute="tree" render="tree" />

                    <h:outputText value="[#{item.typeShortname}] #{item.name}" />

               </rich:panel>

           </rich:treeNode>

       </rich:tree>

       </rich:panel>

       <!-- the same dragSource outside the tree works fine-->

       <rich:panel>

           <h:outputText value="source" />

           <rich:dragSource type="orgTreeNode" dragValue="123" />

       </rich:panel>

The listener's signature is: public void dropListener(org.richfaces.event.DropEvent e).

Environment: WebLogic 12.1.1.0, JSF Mojarra 2.1.14, Richfaces 4.3.2.Final.

[yuri_]

In case someone runs into it there's a quick workaround:

      <rich:tree id="tree" value="#{orgDialog.data}" var="item"

                  toggleType="ajax" nodeType="${item.type}" toggleListener="#{orgDialog.toggleListener}" >

           <rich:treeNode type="LEAF" id="tree_leaf">

               <rich:panel id="p1">

                   <h:outputText value="[#{item.typeShortname}] #{item.name}"/>

               </rich:panel>

           </rich:treeNode>

            <rich:treeNode type="NOT-LEAF" id="tree_node" expanded="#{item.expanded}">

               <rich:panel id="p2">

                  <rich:dragSource type="orgTreeNode" dragValue="#{item}" />

                  <rich:dropTarget id="dt" dropValue="#{item}" acceptedTypes="orgTreeNode" />

                  <a:ajax event="mousedown" listener="#{orgDialog.mouseDownListener(item.id)}" />

                  <a:ajax event="mouseup" listener="#{orgDialog.mouseUpListener(item.id)}" render="tree" />

                  <h:outputText value="[#{item.typeShortname}] #{item.name}" />

               </rich:panel>

           </rich:treeNode>

       </rich:tree>

       </rich:panel>

class OrgDialog {

    public void mouseDownListener(String id)

    public void mouseUpListener(String id)

    ...}

Id params to identify the source and target items, dragSource and dropTarget tags are still needed to render the dragging.

[yuri_]

Finally found the problem: my tree node impl was like this

public class OrgTreeNode extends org.richfaces.model.TreeNodeImpl { ... }

changed it to

public class OrgTreeNode implements javax.swing.tree.TreeNode.TreeNode {

    //implement methods

}

after that d-n-d events and ajax-type selection work ok.