source: josm/trunk/src/org/openstreetmap/josm/actions/DownloadReferrersAction.java @ 13434

Last change on this file since 13434 was 13434, checked in by Don-vip, 8 months ago

see #8039, see #10456 - support read-only data layers

  • Property svn:eol-style set to native
File size: 2.6 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.actions;
3
4import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
5import static org.openstreetmap.josm.tools.I18n.tr;
6
7import java.awt.event.ActionEvent;
8import java.awt.event.KeyEvent;
9import java.util.Collection;
10
11import org.openstreetmap.josm.actions.downloadtasks.DownloadReferrersTask;
12import org.openstreetmap.josm.data.osm.OsmPrimitive;
13import org.openstreetmap.josm.gui.MainApplication;
14import org.openstreetmap.josm.gui.layer.OsmDataLayer;
15import org.openstreetmap.josm.tools.Shortcut;
16
17/**
18 * This action loads the set of primitives referring to the current selection from the OSM server.
19 * @since 1810
20 */
21public class DownloadReferrersAction extends JosmAction {
22
23    /**
24     * Constructs a new {@code DownloadReferrersAction}.
25     */
26    public DownloadReferrersAction() {
27        super(tr("Download parent ways/relations..."), "download",
28                tr("Download objects referring to one of the selected objects"),
29                Shortcut.registerShortcut("file:downloadreferrers",
30                        tr("File: {0}", tr("Download parent ways/relations...")), KeyEvent.VK_D, Shortcut.ALT_CTRL),
31                true, "downloadreferrers", true);
32        putValue("help", ht("/Action/DownloadParentWaysAndRelation"));
33    }
34
35    /**
36     * Downloads the primitives referring to the primitives in <code>primitives</code>
37     * into the target layer <code>targetLayer</code>.
38     * Does nothing if primitives is null or empty.
39     *
40     * @param targetLayer the target layer. Must not be null.
41     * @param children the collection of child primitives.
42     * @throws IllegalArgumentException if targetLayer is null
43     */
44    public static void downloadReferrers(OsmDataLayer targetLayer, Collection<OsmPrimitive> children) {
45        if (children == null || children.isEmpty())
46            return;
47        MainApplication.worker.submit(new DownloadReferrersTask(targetLayer, children));
48    }
49
50    @Override
51    public void actionPerformed(ActionEvent e) {
52        if (!isEnabled())
53            return;
54        OsmDataLayer layer = getLayerManager().getEditLayer();
55        if (layer == null)
56            return;
57        Collection<OsmPrimitive> primitives = layer.data.getSelected();
58        downloadReferrers(layer, primitives);
59    }
60
61    @Override
62    protected void updateEnabledState() {
63        updateEnabledStateOnCurrentSelection();
64    }
65
66    @Override
67    protected void updateEnabledState(Collection<? extends OsmPrimitive> selection) {
68        updateEnabledStateOnModifiableSelection(selection);
69    }
70}
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