org.zkforge.gmaps.InfoChangeCommand Maven / Gradle / Ivy

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/* InfoChangeCommand.java

{{IS_NOTE
	Purpose:
		
	Description:
		
	History:
		Fri Oct  13 14:37:25     2006, Created by henrichen
}}IS_NOTE

Copyright (C) 2006 Potix Corporation. All Rights Reserved.

{{IS_RIGHT
	This program is distributed under Lesser GPL Version 2.1 in the hope that
	it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
*/
package org.zkforge.gmaps;

import org.zkforge.gmaps.event.InfoChangeEvent;

import org.zkoss.lang.Objects;

import org.zkoss.zk.mesg.MZk;
import org.zkoss.zk.ui.Component;
import org.zkoss.zk.ui.UiException;
import org.zkoss.zk.ui.event.Events;
import org.zkoss.zk.au.AuRequest;
import org.zkoss.zk.au.Command;

/**
 * Used only by {@link AuRequest} to implement the {@link InfoChangeEvent}
 * relevant command.
 * 
 * @author henrichen
 */
/* package */ class InfoChangeCommand extends Command {
	public InfoChangeCommand(String evtnm, int flags) {
		super(evtnm, flags);
	}

	//-- super --//
	protected void process(AuRequest request) {
		final Component comp = request.getComponent();
		if (comp == null)
			throw new UiException(MZk.ILLEGAL_REQUEST_COMPONENT_REQUIRED, this);
		final String[] data = request.getData();
		if (data != null && data.length != 1)
			throw new UiException(MZk.ILLEGAL_REQUEST_WRONG_DATA,
				new Object[] {Objects.toString(data), this});

		final Gmaps gmaps = (Gmaps) comp;
        Ginfo info = data == null ? null : (Ginfo) comp.getDesktop().getComponentByUuidIfAny(data[0]);
        if (info != null && info.getParent() != comp) {
            info = null;
        }
		gmaps.setInfoByClient(info);
		Events.postEvent(new InfoChangeEvent(getId(), comp, info));
	}
}