001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.actions; 003 004import static org.openstreetmap.josm.gui.help.HelpUtil.ht; 005import static org.openstreetmap.josm.tools.I18n.tr; 006 007import java.awt.event.ActionEvent; 008import java.awt.event.KeyEvent; 009import java.util.Collection; 010 011import org.openstreetmap.josm.Main; 012import org.openstreetmap.josm.data.osm.OsmPrimitive; 013import org.openstreetmap.josm.tools.Shortcut; 014 015public final class DeleteAction extends JosmAction { 016 017 public DeleteAction() { 018 super(tr("Delete"), "dialogs/delete", tr("Delete selected objects."), 019 Shortcut.registerShortcut("system:delete", tr("Edit: {0}", tr("Delete")), KeyEvent.VK_DELETE, Shortcut.DIRECT), true); 020 putValue("help", ht("/Action/Delete")); 021 } 022 023 @Override 024 public void actionPerformed(ActionEvent e) { 025 if (!isEnabled()) 026 return; 027 if(!Main.map.mapView.isActiveLayerVisible()) 028 return; 029 org.openstreetmap.josm.actions.mapmode.DeleteAction.doActionPerformed(e); 030 } 031 032 @Override 033 protected void updateEnabledState() { 034 if (getCurrentDataSet() == null) { 035 setEnabled(false); 036 } else { 037 updateEnabledState(getCurrentDataSet().getSelected()); 038 } 039 } 040 041 @Override 042 protected void updateEnabledState(Collection<? extends OsmPrimitive> selection) { 043 setEnabled(selection != null && !selection.isEmpty()); 044 } 045}