z30-treepath.zul

ZK是一个Ajax Java Web框架

<?xml version="1.0" encoding="UTF-8"?>

<zk xmlns="http://www.zkoss.org/2005/zul" xmlns:n="http://www.zkoss.org/2005/zk/native">
    
    <window title="Dynamically Change by Model">
        <zscript><![CDATA[
        class MySimpleTreeNode extends SimpleTreeNode {
                private String myData = null;
                public MySimpleTreeNode(String data, List children) {
                      super(data, children);
                      myData = data.toString();
                }
                 
                public String toString() {
                     return "Node: " + myData;
                }
                
                public void append(String data) {
                    myData = myData + data;
                }
                public Object getData() {
                    return myData;
                }
        }
        
       List aChildren = new ArrayList();
       List empty = new ArrayList();
       List a2Children = new ArrayList();
       MySimpleTreeNode a20 = new MySimpleTreeNode("A2-0", empty);
       MySimpleTreeNode a21 = new MySimpleTreeNode("A2-1", empty);
       MySimpleTreeNode a22 = new MySimpleTreeNode("A2-2", empty);
       a2Children.add(a20);
       a2Children.add(a21);
       a2Children.add(a22);
       
       MySimpleTreeNode a0 = new MySimpleTreeNode("A0", empty);
       MySimpleTreeNode a1 = new MySimpleTreeNode("A1", empty);
       MySimpleTreeNode a2 = new MySimpleTreeNode("A2", a2Children);
       aChildren.add(a0);
       aChildren.add(a1);
       aChildren.add(a2);
       
       List children = new ArrayList();
       MySimpleTreeNode a = new MySimpleTreeNode("A", aChildren);
       children.add(a);
       List bbChildren = new ArrayList();
       MySimpleTreeNode b00 = new MySimpleTreeNode("B0-0", empty);
       bbChildren.add(b00);
       
       List bChildren = new ArrayList();
       MySimpleTreeNode b0 = new MySimpleTreeNode("B0", bbChildren);
       MySimpleTreeNode b1 = new MySimpleTreeNode("B1", empty);
       MySimpleTreeNode b2 = new MySimpleTreeNode("B2", empty);
       bChildren.add(b0);
       bChildren.add(b1);
       bChildren.add(b2);
    		
       MySimpleTreeNode b = new MySimpleTreeNode("B", bChildren);
       children.add(b);
       
       List rList = new ArrayList();
       rList.add(a);
       rList.add(b);
       MySimpleTreeNode r = new MySimpleTreeNode("Root", rList);
       
       int testSize = 30;
       
       List r2Children = new ArrayList();
       for(int i=0; i< testSize; i++){
       		r2Children.add(new MySimpleTreeNode("Root2-"+i, empty));
       }
       
       MySimpleTreeNode r2 = new MySimpleTreeNode("Root2", r2Children);
       
       List rootList = new ArrayList();
       rootList.add(r);
       rootList.add(r2);
       
       MySimpleTreeNode root = new MySimpleTreeNode("Root", rootList);
       
       SimpleTreeModel stm = new SimpleTreeModel(root);
       
       
       public void renderByPath(Object obj){
       		int[] result = stm.getPath(root,obj);
       		tree.renderItemByPath(result); 
       }
       
       public void testActivePage(){
       		int index = ib.value;
       		if(index >=0 && index < testSize){
       			int[] path = {1,ib.value};
       			tree.renderItemByPath(path);
       		}else{
       			alert("test index only can be in the range 0 to "+(testSize-1));
       		} 
       }
       
        ]]></zscript>
        
        <vbox>
            <tree model="${stm}" id="tree" width="700PX">
            </tree>
            <hbox>           
                <button label='open A2' onClick='renderByPath(a2)' />
                <button label='open B0-0' onClick='renderByPath(b00)' />
                <button label='open A2-1' onClick='renderByPath(a21)' />
                <intbox id="ib"/><button label='open active Page by index of tree item of Root2' onClick='testActivePage()' />
           </hbox>
        </vbox>
    </window>
    
</zk>