001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.actions.relation;
003
004import static org.openstreetmap.josm.tools.I18n.tr;
005
006import java.awt.event.ActionEvent;
007import java.util.Collection;
008
009import org.openstreetmap.josm.actions.mapmode.DeleteAction;
010import org.openstreetmap.josm.data.osm.OsmUtils;
011import org.openstreetmap.josm.data.osm.Relation;
012import org.openstreetmap.josm.gui.MainApplication;
013import org.openstreetmap.josm.gui.MapFrame;
014import org.openstreetmap.josm.gui.layer.OsmDataLayer;
015import org.openstreetmap.josm.tools.ImageProvider;
016
017/**
018 * Action that delete relations
019 * @since 5799
020 */
021public class DeleteRelationsAction extends AbstractRelationAction {
022
023    /**
024     * Constructs a new <code>DeleteRelationsAction</code>.
025     */
026    public DeleteRelationsAction() {
027        putValue(SHORT_DESCRIPTION, tr("Delete the selected relation"));
028        putValue(NAME, tr("Delete"));
029        new ImageProvider("dialogs", "delete").getResource().attachImageIcon(this, true);
030    }
031
032    protected void deleteRelation(Collection<Relation> toDelete) {
033        OsmDataLayer layer = MainApplication.getLayerManager().getEditLayer();
034        if (toDelete == null || layer == null)
035            return;
036
037        DeleteAction.deleteRelations(layer, toDelete);
038        // clear selection after deletion
039        MapFrame map = MainApplication.getMap();
040        if (map.relationListDialog != null)
041            map.relationListDialog.selectRelations(null);
042    }
043
044    @Override
045    public void actionPerformed(ActionEvent e) {
046        if (!isEnabled())
047            return;
048        deleteRelation(relations);
049    }
050
051    @Override
052    protected void updateEnabledState() {
053        setEnabled(OsmUtils.isOsmCollectionEditable(relations));
054    }
055}