001/*
002 * This library is part of OpenCms -
003 * the Open Source Content Management System
004 *
005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com)
006 *
007 * This library is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * This library is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
015 * Lesser General Public License for more details.
016 *
017 * For further information about Alkacon Software, please see the
018 * company website: http://www.alkacon.com
019 *
020 * For further information about OpenCms, please see the
021 * project website: http://www.opencms.org
022 *
023 * You should have received a copy of the GNU Lesser General Public
024 * License along with this library; if not, write to the Free Software
025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
026 */
027
028package org.opencms.ade.containerpage.client.ui;
029
030import org.opencms.ade.containerpage.client.CmsContainerpageHandler;
031import org.opencms.gwt.client.ui.I_CmsButton;
032
033import com.google.gwt.event.dom.client.ClickEvent;
034
035/**
036 * Add to favorites button.<p>
037 *
038 * @since 8.0.0
039 */
040public class CmsAddToFavoritesButton extends A_CmsToolbarOptionButton {
041
042    /**
043     * Constructor.<p>
044     *
045     * @param handler the container page handler
046     */
047    public CmsAddToFavoritesButton(CmsContainerpageHandler handler) {
048
049        super(I_CmsButton.ButtonData.ADD_TO_FAVORITES, handler);
050    }
051
052    /**
053     * @see org.opencms.ade.containerpage.client.ui.A_CmsToolbarOptionButton#createOptionForElement(org.opencms.ade.containerpage.client.ui.CmsContainerPageElementPanel)
054     */
055    @Override
056    public CmsElementOptionButton createOptionForElement(CmsContainerPageElementPanel element) {
057
058        CmsElementOptionButton button = super.createOptionForElement(element);
059        if (element.isNew() && (button != null)) {
060            button.disable("Can not add empty element to favorites.");
061        }
062        return button;
063    }
064
065    /**
066     * @see org.opencms.ade.containerpage.client.ui.A_CmsToolbarOptionButton#isOptionAvailable(org.opencms.ade.containerpage.client.ui.CmsContainerPageElementPanel)
067     */
068    @Override
069    public boolean isOptionAvailable(CmsContainerPageElementPanel element) {
070
071        try {
072            element.getStructureId();
073            return true;
074        } catch (Throwable t) {
075            return false;
076        }
077    }
078
079    /**
080     * @see org.opencms.ade.containerpage.client.ui.A_CmsToolbarOptionButton#onElementClick(com.google.gwt.event.dom.client.ClickEvent, org.opencms.ade.containerpage.client.ui.CmsContainerPageElementPanel)
081     */
082    @Override
083    public void onElementClick(ClickEvent event, CmsContainerPageElementPanel element) {
084
085        getHandler().addToFavorites(element.getId());
086    }
087
088}