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index.zulzul<zk>
<window border="normal" title="hello" apply="org.zkoss.bind.BindComposer" viewModel="@id('vm') @init('pkg$.testvm')"
form="@id('detail') @init(vm.form) @load(vm.mymodel) @save(vm.mymodel, before='save')">
<label value="@load(detailStatus.dirty)"/>
<listbox id="box" checkmark="true" model="@load(detail.list)">
<template name="model">
<listitem label="@load(each)" />
</template>
</listbox>
<button id="btn" label="add" onClick="@command('add')"/>
<button label="save" onClick="@command('save')"/>
</window>
</zk>
testvm.javajava
import java.util.List;
import java.util.UUID;
import java.util.ArrayList;
import java.util.Comparator;
import org.zkoss.bind.annotation.Command;
import org.zkoss.bind.annotation.NotifyChange;
import org.zkoss.bind.annotation.Init;
import 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.*;
import org.zkoss.bind.impl.FormImpl;
import org.zkoss.bind.Form;
import java.util.Arrays;
import org.zkoss.bind.BindUtils;
public class testvm
{
private ObjModel myModel;
private boolean showGroup=true;
@Init
public void init()
{
myModel =new ObjModel(Arrays.asList("abc"));
}
@Command
@NotifyChange({"detail.list"})
public void add()
{
myModel.add("nowy string");
}
public ObjModel getMymodel() {
return myModel;
}
public Form getForm() {
return new ImprovedForm();
}
}ImprovedForm.javajavaimport java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.zkoss.bind.BindUtils;
import org.zkoss.bind.Form;
import org.zkoss.bind.FormExt;
import org.zkoss.bind.FormStatus;
import org.zkoss.lang.Objects;
import org.zkoss.zul.Messagebox;
public class ImprovedForm implements Form,FormExt,Serializable {
/**
*
*/
private static final long serialVersionUID = 1463169907348730644L;
private final Set<String> _saveFieldNames; //field name for saving
private final Set<String> _loadFieldNames; //field name for loading
private final Map<String, Object> _fields; //field series -> value
private final Map<String, Object> _initFields; //field series -> value
private static final int INIT_CAPACITY = 32;
private final FormStatus _status;
public ImprovedForm() {
_fields = new LinkedHashMap<String, Object>(INIT_CAPACITY);
_initFields = new HashMap<String, Object>(INIT_CAPACITY);
_saveFieldNames = new LinkedHashSet<String>(INIT_CAPACITY);
_loadFieldNames = new LinkedHashSet<String>(INIT_CAPACITY);
_status = new FormStatusImpl();
}
private class FormStatusImpl implements FormStatus,Serializable{
private static final long serialVersionUID = 1L;
@Override
public boolean isDirty() {
return ImprovedForm.this.isDirty();
}
}
@Override
public void setField(String field, Object value) {
// Messagebox.show("setField: " + field + " " + value);
_fields.put(field, value);
}
@Override
public void resetDirty() {
Messagebox.show("resetDirty");
// Messagebox.show(Arrays.toString(new RuntimeException().getStackTrace()));
for (Entry<String, Object> field : _fields.entrySet()) {
if (field.getValue() instanceof List) {
_initFields.put(field.getKey(), new ArrayList((List) field.getValue()) {
@Override
public void add(int index, Object element) {
super.add(index, element);
BindUtils.postNotifyChange(null, null, ImprovedForm.this, "dirty");
}
@Override
public boolean add(Object e) {
BindUtils.postNotifyChange(null, null, ImprovedForm.this, "dirty");
return super.add(e);
}
@Override
public Object remove(int index) {
BindUtils.postNotifyChange(null, null, ImprovedForm.this, "dirty");
return super.remove(index);
}
});
} else {
_initFields.put(field.getKey(), field.getValue());
}
}
}
@Override
public Object getField(String field) {
return _fields.get(field);
}
@Override
public Set<String> getLoadFieldNames() {
return _loadFieldNames;
}
@Override
public Set<String> getSaveFieldNames() {
return _saveFieldNames;
}
@Override
public Set<String> getFieldNames() {
return _fields.keySet();
}
@Override
public boolean isDirty() {
// Messagebox.show(_initFields.toString());
for (String fieldName : _initFields.keySet()) {
if (!Objects.equals(_fields.get(fieldName), _initFields.get(fieldName))) {
return true;
}
}
return false;
}
@Override
public void addLoadFieldName(String fieldName) {
_loadFieldNames.add(fieldName);
}
@Override
public void addSaveFieldName(String fieldName) {
_saveFieldNames.add(fieldName);
}
@Override
public String toString(){
return new StringBuilder().append(getClass().getSimpleName()).append("@").append(Integer.toHexString(hashCode()))
.append(",fields:").append(getFieldNames()).toString();
}
@Override
public FormStatus getStatus() {
return _status;
}
}ObjModel.javajava
import java.util.Comparator;
import java.util.List;
import java.util.ArrayList;
import 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 ObjModel {
private List<String> list;
public ObjModel() {
this.list =new ArrayList<String>();
}
public ObjModel(List<String> list) {
this.list = new ArrayList<String>(list);
}
public ObjModel add(String el) {
list.add(el);
return null;
}
public List<String> getList() {
return this.list;
}
}