ZK Dynamic Menu Part 2 ~ Requirement Constraints

In the last article, we have seen how we can dynamically create Menu using Menu component. In this post, we will see how we can create Dynamic tree using the same class.

MenuItem.java

package com.example.menu;

import java.util.ArrayList;
import java.util.List;

public class MenuItem {
	private String name;
	private List<MenuItem> children;
	private int level;

	public MenuItem(String name,int level) {
		this.name = name;
		this.level = level;
		children = new ArrayList<MenuItem>();
	}
	
	public void addChild(MenuItem node) {
		children.add(node);
	}

	public void appendChild(MenuItem child) {
		if (children == null)
			children = new ArrayList<MenuItem>();
		children.add(child);
	}
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public List<MenuItem> getChildren() {
		return children;
	}

	public void setChildren(List<MenuItem> children) {
		this.children = children;
	}

	public int getLevel() {
		return level;
	}

	public void setLevel(int level) {
		this.level = level;
	}

}

MenuItemData.java

package com.example.menu;

import java.util.ArrayList;
import java.util.List;

public class MenuItemData {

	private static List<MenuItem> menus = new ArrayList<MenuItem>();
	static {

		MenuItem m1 = new MenuItem("Administration",1);
		MenuItem m1_lv1 = new MenuItem("Security",2);
		MenuItem m1_Lv2 = new MenuItem("Accounts",3);

		MenuItem m1_Lv3 = new MenuItem("User",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Role",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("User Rights",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Role Rights",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Regional",3);
		m1_Lv3 = new MenuItem("Clock",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Language",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Keyboard",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Devices",3);
		m1_Lv3 = new MenuItem("Printer",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Projector",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Mouse",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("Network",2);
		m1_Lv2 = new MenuItem("Wireless",3);
		m1_Lv3 = new MenuItem("Connection 1",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Connection 2",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Adapter",3);
		m1_Lv3 = new MenuItem("Local Area Connection",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Virtual Box Network",4);
		m1_Lv2.addChild(m1_Lv3);

		m1_lv1.addChild(m1_Lv2);

		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("My Computer",2);
		m1_Lv2 = new MenuItem("Drives",3);
		m1_Lv3 = new MenuItem("C Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("D Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("E Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Favorites",3);
		m1_Lv3 = new MenuItem("Desktop",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Downloads",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Recent Places",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Google Drive",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		m1.addChild(m1_lv1);
		menus.add(m1);

		/************************************************************************/
		m1 = new MenuItem("ZK",1);
		m1_lv1 = new MenuItem("Products",2);
		m1_Lv2 = new MenuItem("ZK SpreadSheet",3);

		m1_Lv3 = new MenuItem("3D Cell",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Freeze rows",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Ranged Cells",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ZK Pivottable",3);
		m1_Lv3 = new MenuItem("Drill Down",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Render",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Paging",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ZK Calender",3);
		m1_Lv3 = new MenuItem("Views",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Drag and Drop",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Time Zones",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ZK Spring",3);
		m1_Lv3 = new MenuItem("HTTP Request",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("HTTP Basic",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("MD4 Password",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		
		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("ZK Demo",2);
		m1_Lv2 = new MenuItem("Grid",3);
		m1_Lv3 = new MenuItem("Master Detail",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Data Binding",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Dynamic Data",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Data Filter",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("ListBox",3);
		m1_Lv3 = new MenuItem("Dual ListBox",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Paging",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Auto Sort",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("List Group",4);
		m1_Lv2.addChild(m1_Lv3);
		
		m1_Lv2 = new MenuItem("Effects",3);
		m1_Lv3 = new MenuItem("jQuery Effects",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Upload Effect",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Login Effect",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Display Action",4);
		m1_Lv2.addChild(m1_Lv3);

		
		m1_Lv2 = new MenuItem("Layout",3);
		m1_Lv3 = new MenuItem("Portal Layout",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Complex Border Layout",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Group Box",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("Boxes",4);
		m1_Lv2.addChild(m1_Lv3);
		
		
		m1_lv1.addChild(m1_Lv2);

		m1.addChild(m1_lv1);

		/***************************************************/
		m1_lv1 = new MenuItem("ZK Support",2);
		m1_Lv2 = new MenuItem("Documentation",3);
		m1_Lv3 = new MenuItem("Spread Sheet",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("ZK Calender",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("ZK Studio",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);

		m1_Lv2 = new MenuItem("Downloads",3);
		m1_Lv3 = new MenuItem("ZK Spring",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("ZK JSP",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		m1.addChild(m1_lv1);

		menus.add(m1);
		m1 = new MenuItem("Eclipse",1);
		menus.add(m1);
		m1_lv1 = new MenuItem("File",2);
		m1_Lv2 = new MenuItem("Project",3);

		m1_Lv3 = new MenuItem("New Maven",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("New JPA",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_Lv3 = new MenuItem("New JEE",4);
		m1_Lv2.addChild(m1_Lv3);
		m1_lv1.addChild(m1_Lv2);
		m1.addChild(m1_lv1);
	}

	public static List<MenuItem> getAllMenus() {
		return new ArrayList<MenuItem>(menus);
	}

}

MyTreeModel.java

package com.example.menu;

import org.zkoss.zul.AbstractTreeModel;
import org.zkoss.zul.ext.Selectable;

public class MyTreeModel extends AbstractTreeModel<Object> implements Selectable<Object>{

	private static final long serialVersionUID = 1L;
	private MenuItem _root;

	public MyTreeModel(Object root) {
		// set the root
		super(root);
		_root = (MenuItem) root;
		 
	}
	@Override
	public boolean isLeaf(Object node) {
		return ((MenuItem) node).getChildren().size() == 0; // at most 4 levels
	}

	@Override
	public Object getChild(Object parent, int index) {
		return ((MenuItem) parent).getChildren().get(index);
	}

	@Override
	public int getChildCount(Object parent) {
		return ((MenuItem) parent).getChildren().size();  
	}

 
	public boolean isMutiple()
	{
		return true;
	}
}

index.zul

<?page title="new page title" contentType="text/html;charset=UTF-8"?>
<zk>
	<window id="mainmenubar" apply="org.zkoss.bind.BindComposer"
		border="none" onCreate="@command('onFulfill')"
		viewModel="@id('vm') @init('com.example.menu.TreeMenuVM')">
		<tree model="@bind(vm.model)" id="mytree"
			zclass="z-filetree" rows="22"  
			height="auto"  >
			<template name="model" var="node" status="s">
				<treeitem open="true">
					<treerow>
						<treecell label="@bind(node.name)" />
					</treerow>
				</treeitem>
			</template>
		</tree>
	</window>
</zk>

TreeMenuVM.java

package com.example.menu;

import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import org.zkoss.bind.annotation.AfterCompose;
import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.ContextParam;
import org.zkoss.bind.annotation.ContextType;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.select.Selectors;
import org.zkoss.zk.ui.select.annotation.Wire;
import org.zkoss.zul.Tree;
import org.zkoss.zul.TreeModel;
import org.zkoss.zul.Treeitem;

public class TreeMenuVM {

	@Wire("#mytree")
	private Tree mytree;

	TreeModel _model;
	private List<MenuItem> allMenus;

	public TreeModel getModel() {
		if (_model == null) {
			MyTreeModel a = new MyTreeModel(getRoot());
			a.setMultiple(true);
			_model = a;
		}
		return _model;
	}

	@AfterCompose
	public void initSetup(@ContextParam(ContextType.VIEW) Component view) {
		Selectors.wireComponents(view, this, false);
		mytree.setFocus(true);
	}

	public MenuItem getRoot() {
		MenuItem superRoot = new MenuItem("Menu", 0);
		MenuItem root = new MenuItem("Menu", 0);
		allMenus = MenuItemData.getAllMenus();
		MenuItem m1 = allMenus.get(0);
		MenuItem m2 = allMenus.get(1);
		MenuItem m3 = allMenus.get(2);
		superRoot.addChild(root);
		root.addChild(m1);
		root.addChild(m2);
		root.addChild(m3);
		return superRoot;
	}

	@Command
	public void onFulfill() {
		doCollapseExpandAll(mytree, true);
	}

	public static void doCollapseExpandAll(Component component,
			boolean aufklappen) {
		if (component instanceof Treeitem) {
			Treeitem treeitem = (Treeitem) component;
			treeitem.setOpen(aufklappen);
		}
		Collection<?> com = component.getChildren();
		if (com != null) {
			for (Iterator<?> iterator = com.iterator(); iterator.hasNext();) {
				doCollapseExpandAll((Component) iterator.next(), aufklappen);

			}
		}
	}

}

Output:

You can see online Demo here

Requirement Constraints

Sunday, 15 September 2013

ZK Dynamic Menu Part 2

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