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index.zulzul<zk xmlns:x="xhtml" xmlns:sh="shadow" xmlns:ca="client/attribute">
<menubar apply="org.zkoss.bind.BindComposer"
viewModel="@id('vm') @init('pkg$.TestVM')"
orient="vertical" autodrop="true">
<menu label="Project" onClick='lbl.setValue("Menu clicked")'>
<menupopup>
<menuitem label="New" onClick="lbl.setValue(self.label)" />
<menuitem label="Open" onClick="lbl.setValue(self.label)" />
<menuitem label="Save" onClick="lbl.setValue(self.label)" />
<menuseparator />
<menuitem label="Exit" onClick="lbl.setValue(self.label)" />
<menu label="Sub-Project" onClick='lbl.setValue("sub project Menu clicked")'>
<menupopup>
<menuitem label="New" onClick="lbl.setValue(self.label)" />
<menuitem label="Open" onClick="lbl.setValue(self.label)" />
<menuitem label="Save" onClick="lbl.setValue(self.label)" />
</menupopup>
</menu>
</menupopup>
</menu>
</menubar>
<sh:forEach items="@load(vm.items)" var="each">
<sh:if test="${each.children.size() eq 0}">
<sh:apply template="noSubChildren" item="${each}" />
</sh:if>
<sh:if test="${each.children.size() ne 0}">
<sh:apply template="mainLevelParent" item="${each}" subItems="${each.children}" />
</sh:if>
</sh:forEach>
<!--main level parent item template-->
<template name="mainLevelParent">
<menuitem label="@load(item.label)" />
<!-- Sub items -->
<sh:forEach items="@load(subItems)" var="each">
<sh:if test="${each.children.size() eq 0}">
<sh:apply template="noSubChildren" item="${each}"/>
</sh:if>
<sh:if test="${each.children.size() ne 0}">
<sh:apply template="hasSubChildren" item="${each}" subItems="${each.children}"/>
</sh:if>
</sh:forEach>
</template>
<!--no subchildren item template-->
<template name="noSubChildren">
<menuitem label="@load(item.label)"
onClick='lbl.setValue("No sub children clicked")'>
<custom-attributes target="${item}" />
</menuitem>
</template>
<!--has sub children item template-->
<template name="hasSubChildren">
<sh:if test="${!VM.isContainerOnly(item)}">
<menu label="@load(item.label)"
onClick='lbl.setValue("Selectable Menu with sub children clicked")'>
<menupopup sclass="sidebar-popup">
<sh:forEach items="@load(subItems)" var="each">
<sh:apply template="subChildren" item="${each}" />
</sh:forEach>
</menupopup>
</menu>
</sh:if>
<sh:if test="${VM.isContainerOnly(item)}">
<menu sclass="hasSubChildren"
label="@load(item.label)">
<menupopup sclass="sidebar-popup">
<sh:forEach items="@load(subItems)" var="each">
<sh:apply template="subChildren" item="${each}" />
</sh:forEach>
</menupopup>
</menu>
</sh:if>
</template>
<!--sub children template-->
<template name="subChildren">
<sh:if test="${item.children.size() eq 0}">
<sh:apply template="leafSubChild" item="${item}"/>
</sh:if>
<sh:if test="${item.children.size() ne 0}">
<sh:apply template="hasSubChildren" item="${item}" subItems="${item.children}"/>
</sh:if>
</template>
<!-- leaf sub child template-->
<template name="leafSubChild">
<menuitem label="@load(item.label)"
onClick='lbl.setValue("Leaf menu item clicked")'>
<custom-attributes target="${item}" />
</menuitem>
</template>
<label id="lbl" />
</zk>
TestVM.javajava
import java.util.*;
import org.zkoss.bind.annotation.*;
import org.zkoss.util.media.Media;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.UploadEvent;
import org.zkoss.zul.*;
import org.zkoss.zk.ui.util.Clients;
import org.zkoss.zk.ui.event.Events;
public class TestVM {
private List<Item> items;
public TestVM() {
init();
}
private void init() {
Item item1 = new Item("Label1", false);
items.add(item1);
}
public List<Item> getItems() {
return items;
}
}FooModel.javajava
import java.util.List;
import org.zkoss.zul.AbstractTreeModel;
public class FooModel extends AbstractTreeModel<Object> {
private FooNode _root;
public FooModel(Object root) {
// set the root
super(root);
_root = (FooNode)root;
}
public boolean isLeaf(Object node) {
return ((FooNode)node).getChildren().size() == 0; //at most 4 levels
}
public Object getChild(Object parent, int index) {
return ((FooNode)parent).getChildren().get(index);
}
public int getChildCount(Object parent) {
return ((FooNode)parent).getChildren().size(); //each node has 5 children
}
public int getIndexOfChild(Object parent, Object child) {
List<FooNode> children = ((FooNode)parent).getChildren();
for (int i = 0; i < children.size(); i++) {
if (children.get(i).equals(children))
return i;
}
return -1;
}
};Item.javajavaimport org.zkoss.zk.ui.*;
import org.zkoss.zk.ui.event.*;
import org.zkoss.zk.ui.util.*;
import org.zkoss.zk.ui.ext.*;
import org.zkoss.zk.au.*;
import org.zkoss.zk.au.out.*;
import org.zkoss.zul.*;
public class Item {
private String label;
private boolean isContainerOnly;
private List<Item> children = new ArrayList<>();
public Item(String label, boolean isContainerOnly) {
this.label = label;
this.isContainerOnly = isContainerOnly;
}
public String getLabel() {
return label;
}
public boolean isContainerOnly() {
return isContainerOnly;
}
public List<Item> getChildren() {
return children;
}
}