DeleteRequestManager.java

/**
 *
 *    geo-platform
 *    Rich webgis framework
 *    http://geo-platform.org
 *   ====================================================================
 *
 *   Copyright (C) 2008-2017 geoSDI Group (CNR IMAA - Potenza - ITALY).
 *
 *   This program is free software: you can redistribute it and/or modify it
 *   under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version. This program is distributed in the
 *   hope that it will be useful, but WITHOUT ANY WARRANTY; without
 *   even the implied warranty of MERCHANTABILITY or FITNESS FOR
 *   A PARTICULAR PURPOSE. See the GNU General Public License
 *   for more details. You should have received a copy of the GNU General
 *   Public License along with this program. If not, see http://www.gnu.org/licenses/
 *
 *   ====================================================================
 *
 *   Linking this library statically or dynamically with other modules is
 *   making a combined work based on this library. Thus, the terms and
 *   conditions of the GNU General Public License cover the whole combination.
 *
 *   As a special exception, the copyright holders of this library give you permission
 *   to link this library with independent modules to produce an executable, regardless
 *   of the license terms of these independent modules, and to copy and distribute
 *   the resulting executable under terms of your choice, provided that you also meet,
 *   for each linked independent module, the terms and conditions of the license of
 *   that module. An independent module is a module which is not derived from or
 *   based on this library. If you modify this library, you may extend this exception
 *   to your version of the library, but you are not obligated to do so. If you do not
 *   wish to do so, delete this exception statement from your version.
 */
package org.geosdi.geoplatform.gui.client.action.toolbar.responsibility;

import com.extjs.gxt.ui.client.event.Listener;
import com.extjs.gxt.ui.client.event.MessageBoxEvent;
import com.extjs.gxt.ui.client.widget.Dialog;
import com.extjs.gxt.ui.client.widget.treepanel.TreePanel;
import java.util.Collections;
import java.util.List;
import org.geosdi.geoplatform.gui.client.i18n.LayerModuleConstants;
import org.geosdi.geoplatform.gui.configuration.message.GeoPlatformMessage;
import org.geosdi.geoplatform.gui.model.tree.GPBeanTreeModel;
import org.geosdi.geoplatform.gui.model.tree.comparator.GPBeanTreeZIndexComparator;

/**
 *
 * @author Giuseppe La Scaleia - CNR IMAA geoSDI Group
 * @email giuseppe.lascaleia@geosdi.org
 */
public class DeleteRequestManager {

    private TreePanel<GPBeanTreeModel> tree;
    private DeleteRequestHandler deleteFolder;
    private DeleteRequestHandler deleteLayer;

    public DeleteRequestManager(TreePanel theTree) {
        this.tree = theTree;
        initChain();
    }

    public void processRequest() {
        GeoPlatformMessage.confirmMessage(LayerModuleConstants.INSTANCE.
                DeleteRequestManager_confirmDeleteTitleText(),
                LayerModuleConstants.INSTANCE.DeleteRequestManager_confirmDeleteBodyText(),
                new Listener<MessageBoxEvent>() {
                    @Override
                    public void handleEvent(MessageBoxEvent be) {
                        if (Dialog.YES.equals(be.getButtonClicked().getItemId())) {
                            List<GPBeanTreeModel> selectedItems = DeleteRequestManager.this.tree.getSelectionModel().getSelectedItems();
                            Collections.sort(selectedItems, new GPBeanTreeZIndexComparator());
                            for (GPBeanTreeModel model : selectedItems) {
                                DeleteRequestManager.this.deleteFolder.deleteRequest(
                                        model);
                            }
                        }
                    }
                });

    }

    private void initChain() {
        this.deleteFolder = new DeleteFolderHandler(tree);
        this.deleteLayer = new DeleteLayerHandler(tree);
        this.deleteFolder.setSuperiorRequestHandler(deleteLayer);
    }
}