DragDropView.java

/*
 * Copyright 2009-2014 PrimeTek.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.primefaces.showcase.view.data.tree;

import java.io.Serializable;
import javax.annotation.PostConstruct;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ViewScoped;
import javax.faces.context.FacesContext;
import org.primefaces.event.TreeDragDropEvent;
import org.primefaces.model.DefaultTreeNode;
import org.primefaces.model.TreeNode;

@ManagedBean(name="treeDNDView")
@ViewScoped
public class DragDropView implements Serializable {
    
    private TreeNode root1;
    
    private TreeNode root2;
    
    private TreeNode selectedNode1;
    
    private TreeNode selectedNode2;
    
    @PostConstruct
    public void init() {
		root1 = new DefaultTreeNode("Root", null);
		TreeNode node0 = new DefaultTreeNode("Node 0", root1);
		TreeNode node1 = new DefaultTreeNode("Node 1", root1);
		TreeNode node2 = new DefaultTreeNode("Node 2", root1);
		
		TreeNode node00 = new DefaultTreeNode("Node 0.0", node0);
		TreeNode node01 = new DefaultTreeNode("Node 0.1", node0);
		
		TreeNode node10 = new DefaultTreeNode("Node 1.0", node1);
		TreeNode node11 = new DefaultTreeNode("Node 1.1", node1);
		
		TreeNode node000 = new DefaultTreeNode("Node 0.0.0", node00);
		TreeNode node001 = new DefaultTreeNode("Node 0.0.1", node00);
		TreeNode node010 = new DefaultTreeNode("Node 0.1.0", node01);
		
		TreeNode node100 = new DefaultTreeNode("Node 1.0.0", node10);
        
        root2 = new DefaultTreeNode("Root2", null);
		TreeNode item0 = new DefaultTreeNode("Item 0", root2);
		TreeNode item1 = new DefaultTreeNode("Item 1", root2);
        TreeNode item2 = new DefaultTreeNode("Item 2", root2);
		
		TreeNode item00 = new DefaultTreeNode("Item 0.0", item0);
	}

	public TreeNode getRoot1() {
		return root1;
	}

    public TreeNode getRoot2() {
        return root2;
    }

    public TreeNode getSelectedNode1() {
        return selectedNode1;
    }

    public void setSelectedNode1(TreeNode selectedNode1) {
        this.selectedNode1 = selectedNode1;
    }

    public TreeNode getSelectedNode2() {
        return selectedNode2;
    }

    public void setSelectedNode2(TreeNode selectedNode2) {
        this.selectedNode2 = selectedNode2;
    }
       
    public void onDragDrop(TreeDragDropEvent event) {
        TreeNode dragNode = event.getDragNode();
        TreeNode dropNode = event.getDropNode();
        int dropIndex = event.getDropIndex();
        
        FacesMessage message = new FacesMessage(FacesMessage.SEVERITY_INFO, "Dragged " + dragNode.getData(), "Dropped on " + dropNode.getData() + " at " + dropIndex);
        FacesContext.getCurrentInstance().addMessage(null, message);
    }
}