Create a Input Messagebox

<?xml version="1.0" encoding="UTF-8"?>
<?page title="ZK Test" language="xul/html"?>
<!--
test.zul

{{IS_NOTE
	Purpose:
		View the specified subject.
	Description:

	History:
		Mon May 30 19:13:47     2005, Created by tomyeh
}}IS_NOTE

Copyright (C) 2005 Potix Corporation. All Rights Reserved.

{{IS_RIGHT
	This program is distributed under GPL Version 3.0 in the hope that
	it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
-->
<window title="${arg.title}" border="normal" width="auto" closable="true"
use="org.zkoss.zul.impl.MessageboxDlg">
	
	<hbox>
		<div class="${arg.icon}"/>
		<div sclass="z-messagebox" width="auto">
			<label value="${arg.message}" multiline="true"/>
			<textbox id="txtQuestion"/>			
		</div>		
	</hbox>
	<separator bar="true"/>
	<hbox style="margin-left:auto; margin-right:auto">
	<button id="btn1" identity="${arg.OK}" sclass="z-messagebox-btn" use="org.zkoss.zul.impl.MessageboxDlg$Button"
		if="$"/>
	<button identity="${arg.CANCEL}" sclass="z-messagebox-btn" use="org.zkoss.zul.impl.MessageboxDlg$Button"
		if="$"/>
	<button identity="${arg.YES}" sclass="z-messagebox-btn" use="org.zkoss.zul.impl.MessageboxDlg$Button"
		if="$"/>
	<button identity="${arg.NO}" sclass="z-messagebox-btn" use="org.zkoss.zul.impl.MessageboxDlg$Button"
		if="$"/>
	<button identity="${arg.RETRY}" sclass="z-messagebox-btn" use="org.zkoss.zul.impl.MessageboxDlg$Button"
		if="$"/>
	<button identity="${arg.ABORT}" sclass="z-messagebox-btn" use="org.zkoss.zul.impl.MessageboxDlg$Button"
		if="$"/>
	<button identity="${arg.IGNORE}" sclass="z-messagebox-btn" use="org.zkoss.zul.impl.MessageboxDlg$Button"
		if="$"/>
	</hbox>
</window>

package com.xxx.project.web;

import java.util.HashMap;
import java.util.Map;

import org.zkoss.zk.ui.Executions;
import org.zkoss.zk.ui.UiException;
import org.zkoss.zk.ui.WebApp;
import org.zkoss.zk.ui.event.EventListener;
import org.zkoss.zul.Messagebox;
import org.zkoss.zul.Textbox;
import org.zkoss.zul.impl.MessageboxDlg;

/**
 * @author marcos.sousa
 * 
 */
public class InputMessageBox extends Messagebox {

	private static final long serialVersionUID = 1L;

	// path of the messagebox zul-template
        private static String oldTemplate = Messagebox.getTemplate();
	private static String _templ = "/zul/inputMessageBox.zul";
	private static Textbox txtQuestion;

	/**
	 * Shows a message box and returns an object introduced.
	 * 
	 * @param message the message to show before the input field.
	 * @param title the title. If null, {@link WebApp#getAppName} is used.
	 * @return the object. NULL means that CANCEL, otherwise means an Object is being passed. 
	 * 
	 * Note: if the event processing thread is  disable, it always returns null.
	 */
	public static final Object showQuestion(String message, String title)
			throws InterruptedException {
		setTemplate(_templ);
		Object object = null;
		if (showInput(message, title, Messagebox.OK | Messagebox.CANCEL, Messagebox.QUESTION, 0, null) == Messagebox.OK) {
			object = txtQuestion.getValue(); // TODO: Remember NULL means that CANCEL, otherwise means an Object is being passed. I used StringUtils from commons lang to trim to empty
		}
                setTemplate(oldTemplate);
		return object;
	}
	
	/** Shows a message box and returns what button is pressed.
	 *
	 * @param title the title. If null, {@link WebApp#getAppName} is used.
	 * @param buttons a combination of {@link #OK}, {@link #CANCEL},
	 * {@link #YES}, {@link #NO}, {@link #ABORT}, {@link #RETRY},
	 * and {@link #IGNORE}. If zero, {@link #OK} is assumed
	 * @param icon one of predefined images: {@link #QUESTION},
	 * {@link #EXCLAMATION}, {@link #ERROR}, {@link #NONE}, or any style class
	 * name(s) to show an image.
	 * @param focus one of button to have to focus. If 0, the first button
	 * will gain the focus. One of {@link #OK}, {@link #CANCEL},
	 * {@link #YES}, {@link #NO}, {@link #ABORT}, {@link #RETRY},
	 * and {@link #IGNORE}.
	 * @param listener the event listener which is invoked when a button
	 * is clicked. Ignored if null.
	 * It is useful if the event processing thread is disabled
	 * ({@link org.zkoss.zk.ui.util.Configuration#enableEventThread}).
	 * If the event processing thread is disable, this method always
	 * return {@link #OK}. To know which button is pressed, you have to pass an
	 * event listener. Then, when the user clicks a button, the event
	 * listener is invoked. You can identify which button is clicked
	 * by examining the event name ({@link org.zkoss.zk.ui.event.Event#getName}) as shown
	 * in the following table. Alternatively, you can examine the value
	 * of {@link org.zkoss.zk.ui.event.Event#getData}, which must be an
	 * integer represetinng the button, such as {@link #OK}, {@link #YES}
	 * and so on.
	 * <table border="1">
	 *<tr><td>Button</td><td>Event Name</td></tr>
	 *<tr><td>OK</td><td>onOK</td></tr>
	 *<tr><td>Cancel</td><td>onCancel</td></tr>
	 *<tr><td>Yes</td><td>onYes</td></tr>
	 *<tr><td>No</td><td>onNo</td></tr>
	 *<tr><td>Retry</td><td>onRetry</td></tr>
	 *<tr><td>Abort</td><td>onAbort</td></tr>
	 *<tr><td>Ignore</td><td>onIgnore</td></tr>
	 *</table>
	 * @return the button being pressed (one of {@link #OK}, {@link #CANCEL},
	 * {@link #YES}, {@link #NO}, {@link #ABORT}, {@link #RETRY},
	 * and {@link #IGNORE}).
	 * Note: if the event processing thread is disable, it always
	 * returns {@link #OK}.
	 * @since 3.0.4
	 */
	public static final	int showInput(String message, String title, int buttons, String icon, int focus, EventListener listener)	throws InterruptedException {
		final Map params = new HashMap();
		params.put("message", message);
		params.put("title", title != null ? title:
			Executions.getCurrent().getDesktop().getWebApp().getAppName());
		params.put("icon", icon);
		params.put("buttons", new Integer(
			(buttons & (OK|CANCEL|YES|NO|ABORT|RETRY|IGNORE)) != 0 ? buttons: OK));
		if ((buttons & OK) != 0)
			params.put("OK", new Integer(OK));
		if ((buttons & CANCEL) != 0)
			params.put("CANCEL", new Integer(CANCEL));
		if ((buttons & YES) != 0)
			params.put("YES", new Integer(YES));
		if ((buttons & NO) != 0)
			params.put("NO", new Integer(NO));
		if ((buttons & RETRY) != 0)
			params.put("RETRY", new Integer(RETRY));
		if ((buttons & ABORT) != 0)
			params.put("ABORT", new Integer(ABORT));
		if ((buttons & IGNORE) != 0)
			params.put("IGNORE", new Integer(IGNORE));

		final MessageboxDlg dlg = (MessageboxDlg)
			Executions.createComponents(_templ, null, params);
		dlg.setButtons(buttons);
		dlg.setEventListener(listener);
		txtQuestion = (Textbox)dlg.getFellowIfAny("txtQuestion");
		if (focus > 0) dlg.setFocus(focus);

		if (dlg.getDesktop().getWebApp().getConfiguration().isEventThreadEnabled()) {
			try {
				dlg.doModal();
			} catch (Throwable ex) {
				if (ex instanceof InterruptedException)
					throw (InterruptedException)ex;
				try {
					dlg.detach();
				} catch (Throwable ex2) {
					System.err.println("Failed to detach when recovering from an error " + ex2.ToString());
				}
				throw UiException.Aide.wrap(ex);
			}
			return dlg.getResult();
		} else {
			dlg.doHighlighted();
			return OK;
		}
	}

}