Suggested case list:
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index.zulzul<?taglib uri="http://www.zkoss.org/dsp/web/core" prefix="c"?>
<window apply="pkg$.TestComposer">
<vlayout>
<label>Press Ctrl+Q to open menupopup</label>
<textbox id="textBox" constraint="${c:new('pkg$.MyConstraint')}" ctrlKeys="^q" use="pkg$.MyTextbox"/>
<menupopup id="popup">
<menuitem id="addValue" label="Add Value"/>
<menuitem id="emptyValue" label="Empty Value"/>
</menupopup>
</vlayout>
</window>TestComposer.javajavaimport org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.event.*;
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.*;
import org.zkoss.zk.ui.util.Clients;
public class TestComposer extends SelectorComposer<Component> {
@Wire
private MyTextbox textBox;
@Wire
private Menupopup popup;
@Wire
private Menuitem addValue, emptyValue;
@Listen("onCtrlKey = #textBox")
public void openMenu (KeyEvent evt) {
Clients.clearWrongValue(textBox);
textBox.skipValidation(true);
popup.open(textBox);
}
@Listen("onOpen = #popup")
public void openMenu (OpenEvent event) {
if (event.isOpen() == false) {
textBox.skipValidation(false);
textBox.revalidate();
}
}
@Listen("onClick = #addValue")
public void addValue (MouseEvent event) {
textBox.setValue("An apple a day");
}
@Listen("onClick = #emptyValue")
public void emptyValue (MouseEvent event) {
textBox.setValue("");
}
}MyTextbox.javajavaimport org.zkoss.zul.Textbox;
public class MyTextbox extends Textbox {
private boolean skipValidation = false;
public void skipValidation (boolean skipValidation) {
this.skipValidation = skipValidation;
}
public boolean isSkipValidation () {
return skipValidation;
}
public void revalidate() {
super.validate(this.getValue());
}
}
MyConstraint.javajavaimport org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.WrongValueException;
import org.zkoss.zul.Constraint;
public class MyConstraint implements Constraint {
public void validate (Component comp, Object value) throws WrongValueException {
MyTextbox myTextbox = (MyTextbox) comp;
if (myTextbox.isSkipValidation()){
return;
}
if (value == null || ((String) value).isEmpty() || "".equals((String) value)) {
throw new WrongValueException(comp, "This field may not be empty or contain only spaces.");
}
}
}