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index.zulzul<!-- Composite component -->
<?component name="t24Combobox" class="pkg$.com.armada.t24.web.ui.component.combobox.T24Combobox" ?>
<zk>
<listbox>
<listhead sizable="true">
<listheader label="AAA" hflex="min"/>
<listheader label="Combo" hflex="min"/>
<listheader label="CCC" hflex="min"/>
</listhead>
<listitem>
<listcell>
<combobox >
<comboitem label="aaaaaaaaaa"/>
<comboitem label="bbbbbbbb"/>
<comboitem label="cccc"/>
<comboitem label="ddddddd"/>
<comboitem label="eeee"/>
<comboitem label="ffff"/>
<comboitem label="gggggggggggggggggg"/>
<comboitem label="hhhh"/>
<comboitem label="iiiiiii"/>
<comboitem label="jjjj"/>
<comboitem label="kkkk"/>
<comboitem label="llll"/>
</combobox>
</listcell>
<listcell>
<t24Combobox >
<comboitem label="aaaaaaaaaa"/>
<comboitem label="bbbbbbbb"/>
<comboitem label="cccc"/>
<comboitem label="ddddddd"/>
<comboitem label="eeee"/>
<comboitem label="ffff"/>
<comboitem label="gggggggggggggggggg"/>
<comboitem label="hhhh"/>
<comboitem label="iiiiiii"/>
<comboitem label="jjjj"/>
<comboitem label="kkkk"/>
<comboitem label="llll"/>
</t24Combobox>
</listcell>
<listcell>
<textbox/>
</listcell>
</listitem>
</listbox>
</zk>T24Combobox.javajavaimport java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.event.Event;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zk.ui.event.InputEvent;
import org.zkoss.zk.ui.event.OpenEvent;
import org.zkoss.zul.Combobox;
import org.zkoss.zul.Comboitem;
import org.zkoss.zul.ListModel;
import org.zkoss.zul.ListModelList;
public class T24Combobox extends Combobox {
private static final long serialVersionUID = 1L;
private List<Comboitem> shownItems;
private List<Comboitem> filteredItems;
private boolean largeData;
private ListModel model;
public T24Combobox() {
super();
this.setMold("rounded");
this.setAutocomplete(true);
this.setAutodrop(true);
this.setSclass("input");
this.setButtonVisible(true);
filteredItems = new ArrayList<Comboitem>();
shownItems = new ArrayList<Comboitem>(getItems());
this.addEventListener(Events.ON_CHANGING, new EventListener<InputEvent>() {
@Override
public void onEvent(InputEvent event) throws Exception {
String newInputString = event.getValue().toLowerCase();
if(largeData) {
if(newInputString.length() > 0) {
preFilterModel(newInputString);
} else {
clearListModel();
return;
}
}
// Blank input, add all items back to combobox
if (newInputString == null || newInputString.isEmpty()) {
for (Comboitem item : filteredItems) {
item.setSclass("");
item.setDisabled(false);
}
shownItems = new ArrayList(getItems());
filteredItems.clear();
} else {
Iterator<Comboitem> iterator = getItems().iterator();
while (iterator.hasNext()) {
Comboitem item = iterator.next();
String label = item.getLabel().toLowerCase();
if (label.equals(newInputString)) {
setSelectedItem(item);
break;
} else if (!label.contains(newInputString)) {
item.setSclass("hide");
item.setDisabled(true);
if (!filteredItems.contains(item)) {
filteredItems.add(item);
}
if (shownItems.contains(item)) {
shownItems.remove(item);
}
} else {
item.setSclass("");
item.setDisabled(false);
if (filteredItems.contains(item)) {
filteredItems.remove(item);
}
if (!shownItems.contains(item)) {
shownItems.add(item);
}
}
}
}
}
});
this.addEventListener(Events.ON_OPEN, new EventListener<OpenEvent>() {
@Override
public void onEvent(OpenEvent event) throws Exception {
for (Comboitem item : getItems()) {
item.setSclass("");
item.setDisabled(false);
}
shownItems = new ArrayList(getItems());
filteredItems.clear();
}
});
this.addEventListener(Events.ON_BLUR, new EventListener<Event>() {
@Override
public void onEvent(Event event) throws Exception {
if (shownItems.size() == 1) {
setSelectedItem(shownItems.get(0));
} else if (getSelectedItem() == null) {
setText("");
if(largeData) {
// we need to clear the temporary model
clearListModel();
}
}
}
});
}
@Override
public void beforeChildAdded(Component newChild, Component refChild) {
if ((newChild instanceof Comboitem)) {
super.beforeChildAdded(newChild, refChild);
}
}
@Override
public void setModel(ListModel<?> model) {
// reset list
shownItems.clear();
filteredItems.clear();
if(largeData) {
this.model = model;
} else {
super.setModel(model);
}
}
public Boolean getLargeData() {
return largeData;
}
public void setLargeData(Boolean largeData) {
this.largeData = largeData;
}
private void preFilterModel(String filterText) {
List objects = new ArrayList();
for(int i=0; i<model.getSize(); i++) {
// limit results to 100
if(objects.size() < 100) {
Object element = model.getElementAt(i);
if (element.toString().contains(filterText)) {
objects.add(element);
}
} else {
break;
}
}
if(objects.size() > 0) {
ListModel filteredModel = new ListModelList(objects);
super.setModel(filteredModel);
}
}
private void clearListModel() {
super.setModel(new ListModelList());
}
public void setSelectedObject(Object object) {
if(object != null) {
List<Comboitem> items = getItems();
if(items != null && !items.isEmpty()) {
for(Comboitem item : items) {
Object obj = item.getValue();
if(object.equals(obj)) {
super.setSelectedItem(item);
}
}
} else {
Comboitem item = new Comboitem(object.toString());
item.setValue(object);
super.appendChild(item);
super.setSelectedItem(item);
}
}
}
public void setObjectList(List<Object> objects) {
if(objects != null) {
if(model == null || model.getSize() == 0) {
model = new ListModelList(objects);
}
}
}
}