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index.zulzul<zk>
<window border="normal" title="hello" apply="pkg$.TestComposer">
<grid id="grid" sclass="narrow" style="overflow: auto;" height="200px" width="100px">
<columns>
<column>
<checkbox id="all" checked="false" />
</column>
</columns>
</grid>
</window>
</zk>
TestComposer.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.*;
import org.zkoss.zk.ui.select.SelectorComposer;
import org.zkoss.zk.ui.select.annotation.Listen;
import org.zkoss.zk.ui.select.annotation.Wire;
import org.zkoss.zul.event.ZulEvents;
import java.util.ArrayList;
import java.util.List;
public class TestComposer extends SelectorComposer<Component> {
private class Datamodel {
private boolean selected;
public void setSelected(boolean selected) {
this.selected = selected;
}
public boolean isSelected() {
return selected;
}
}
private class AfterRenderGridEventListener implements EventListener<Event> {
private Grid grid;
public AfterRenderGridEventListener(final Grid grid) {
this.grid = grid;
}
@Override
public void onEvent(Event event) throws Exception {
this.grid.invalidate();
}
}
@Wire
private Grid grid;
@Wire
private Checkbox all;
/** onClick Callback für die Alles-Auswählen Checkbox. */
@Listen("onClick = #all")
public void selectAll() {
// sicherstellen, dass alle Zeilen geladen sind
grid.renderAll();
Rows rows = grid.getRows();
List<Row> children = rows.getChildren();
List<Datamodel> dataList = new ArrayList<Datamodel>();
for (Row row : children) {
Datamodel data = row.getValue();
data.setSelected(all.isChecked());
dataList.add(data);
}
grid.setModel(new ListModelList<Datamodel>(dataList));
grid.renderAll();
}
public List<Datamodel> createViewList() {
List<Datamodel> viewList = new ArrayList<Datamodel>();
for (int i = 0; i < 100; i++)
viewList.add(new Datamodel());
return viewList;
}
public void doAfterCompose(Component comp) throws Exception {
super.doAfterCompose(comp);
List<Datamodel> viewList = createViewList();
grid.addEventListener(ZulEvents.ON_AFTER_RENDER, new AfterRenderGridEventListener(grid));
grid.setModel(new ListModelList<Datamodel>(viewList));
grid.setRowRenderer(new MyRenderer());
}
private class MyRenderer implements RowRenderer<Datamodel> {
public void render(Row row, Datamodel data, int index) {
Checkbox selected = new Checkbox();
selected.setChecked(data.isSelected());
selected.addEventListener(Events.ON_CLICK, new EventListener<Event>() {
@Override
public void onEvent(Event event) throws Exception {
changeDataSelection((Checkbox) event.getTarget());
}
});
row.appendChild(selected);
row.setValue(data);
}
}
private void changeDataSelection(Checkbox target) {
// sicherstellen, dass alle Zeilen geladen sind
grid.renderAll();
Rows rows = grid.getRows();
List<Row> children = rows.getChildren();
List<Datamodel> dataList = new ArrayList<Datamodel>();
for (Row row : children) {
Datamodel data = row.getValue();
if (target.getParent().equals(row)) {
data.setSelected(!data.isSelected());
}
dataList.add(data);
}
grid.setModel(new ListModelList<Datamodel>(dataList));
grid.renderAll();
}
}