001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.dialogs;
003
004import static org.openstreetmap.josm.tools.I18n.tr;
005import static org.openstreetmap.josm.tools.I18n.trn;
006
007import java.awt.Component;
008import java.awt.GraphicsEnvironment;
009import java.awt.Rectangle;
010import java.awt.datatransfer.Transferable;
011import java.awt.event.ActionEvent;
012import java.awt.event.ActionListener;
013import java.awt.event.KeyEvent;
014import java.awt.event.MouseEvent;
015import java.util.ArrayList;
016import java.util.Arrays;
017import java.util.Collection;
018import java.util.Collections;
019import java.util.Comparator;
020import java.util.HashSet;
021import java.util.LinkedList;
022import java.util.List;
023import java.util.Set;
024
025import javax.swing.AbstractAction;
026import javax.swing.AbstractListModel;
027import javax.swing.DefaultListSelectionModel;
028import javax.swing.JComponent;
029import javax.swing.JList;
030import javax.swing.JMenuItem;
031import javax.swing.JPopupMenu;
032import javax.swing.ListSelectionModel;
033import javax.swing.TransferHandler;
034import javax.swing.event.ListDataEvent;
035import javax.swing.event.ListDataListener;
036import javax.swing.event.ListSelectionEvent;
037import javax.swing.event.ListSelectionListener;
038import javax.swing.event.PopupMenuEvent;
039
040import org.openstreetmap.josm.actions.AbstractSelectAction;
041import org.openstreetmap.josm.actions.AutoScaleAction;
042import org.openstreetmap.josm.actions.AutoScaleAction.AutoScaleMode;
043import org.openstreetmap.josm.actions.relation.EditRelationAction;
044import org.openstreetmap.josm.data.osm.DataSelectionListener;
045import org.openstreetmap.josm.data.osm.DataSet;
046import org.openstreetmap.josm.data.osm.DefaultNameFormatter;
047import org.openstreetmap.josm.data.osm.Node;
048import org.openstreetmap.josm.data.osm.OsmData;
049import org.openstreetmap.josm.data.osm.OsmPrimitive;
050import org.openstreetmap.josm.data.osm.OsmPrimitiveComparator;
051import org.openstreetmap.josm.data.osm.Relation;
052import org.openstreetmap.josm.data.osm.Way;
053import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent;
054import org.openstreetmap.josm.data.osm.event.DataChangedEvent;
055import org.openstreetmap.josm.data.osm.event.DataSetListener;
056import org.openstreetmap.josm.data.osm.event.DatasetEventManager;
057import org.openstreetmap.josm.data.osm.event.DatasetEventManager.FireMode;
058import org.openstreetmap.josm.data.osm.event.NodeMovedEvent;
059import org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent;
060import org.openstreetmap.josm.data.osm.event.PrimitivesRemovedEvent;
061import org.openstreetmap.josm.data.osm.event.RelationMembersChangedEvent;
062import org.openstreetmap.josm.data.osm.event.SelectionEventManager;
063import org.openstreetmap.josm.data.osm.event.TagsChangedEvent;
064import org.openstreetmap.josm.data.osm.event.WayNodesChangedEvent;
065import org.openstreetmap.josm.data.osm.search.SearchSetting;
066import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
067import org.openstreetmap.josm.gui.MainApplication;
068import org.openstreetmap.josm.gui.PopupMenuHandler;
069import org.openstreetmap.josm.gui.PrimitiveRenderer;
070import org.openstreetmap.josm.gui.SideButton;
071import org.openstreetmap.josm.gui.datatransfer.PrimitiveTransferable;
072import org.openstreetmap.josm.gui.datatransfer.data.PrimitiveTransferData;
073import org.openstreetmap.josm.gui.dialogs.relation.RelationPopupMenus;
074import org.openstreetmap.josm.gui.history.HistoryBrowserDialogManager;
075import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeEvent;
076import org.openstreetmap.josm.gui.layer.MainLayerManager.ActiveLayerChangeListener;
077import org.openstreetmap.josm.gui.util.AbstractTag2LinkPopupListener;
078import org.openstreetmap.josm.gui.util.GuiHelper;
079import org.openstreetmap.josm.gui.util.HighlightHelper;
080import org.openstreetmap.josm.gui.widgets.ListPopupMenu;
081import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher;
082import org.openstreetmap.josm.spi.preferences.Config;
083import org.openstreetmap.josm.tools.ImageProvider;
084import org.openstreetmap.josm.tools.InputMapUtils;
085import org.openstreetmap.josm.tools.Shortcut;
086import org.openstreetmap.josm.tools.Utils;
087import org.openstreetmap.josm.tools.bugreport.BugReport;
088
089/**
090 * A small tool dialog for displaying the current selection.
091 * @since 8
092 */
093public class SelectionListDialog extends ToggleDialog {
094    private JList<OsmPrimitive> lstPrimitives;
095    private final DefaultListSelectionModel selectionModel = new DefaultListSelectionModel();
096    private final SelectionListModel model = new SelectionListModel(selectionModel);
097
098    private final SelectAction actSelect = new SelectAction();
099    private final SearchAction actSearch = new SearchAction();
100    private final ShowHistoryAction actShowHistory = new ShowHistoryAction();
101    private final ZoomToJOSMSelectionAction actZoomToJOSMSelection = new ZoomToJOSMSelectionAction();
102    private final ZoomToListSelection actZoomToListSelection = new ZoomToListSelection();
103
104    /** the popup menu and its handler */
105    private final ListPopupMenu popupMenu;
106    private final transient PopupMenuHandler popupMenuHandler;
107
108    /**
109     * Builds the content panel for this dialog
110     */
111    protected void buildContentPanel() {
112        lstPrimitives = new JList<>(model);
113        lstPrimitives.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
114        lstPrimitives.setSelectionModel(selectionModel);
115        lstPrimitives.setCellRenderer(new PrimitiveRenderer());
116        lstPrimitives.setTransferHandler(new SelectionTransferHandler());
117        if (!GraphicsEnvironment.isHeadless()) {
118            lstPrimitives.setDragEnabled(true);
119        }
120
121        lstPrimitives.getSelectionModel().addListSelectionListener(actSelect);
122        lstPrimitives.getSelectionModel().addListSelectionListener(actShowHistory);
123
124        // the select action
125        final SideButton selectButton = new SideButton(actSelect);
126        selectButton.createArrow(e -> SelectionHistoryPopup.launch(selectButton, model.getSelectionHistory()));
127
128        // the search button
129        final SideButton searchButton = new SideButton(actSearch);
130        searchButton.createArrow(e -> SearchPopupMenu.launch(searchButton), true);
131
132        createLayout(lstPrimitives, true, Arrays.asList(
133            selectButton, searchButton, new SideButton(actShowHistory)
134        ));
135    }
136
137    @Override
138    public void destroy() {
139        lstPrimitives.setTransferHandler(null);
140        super.destroy();
141    }
142
143    /**
144     * Constructs a new {@code SelectionListDialog}.
145     */
146    public SelectionListDialog() {
147        super(tr("Selection"), "selectionlist", tr("Open a selection list window."),
148                Shortcut.registerShortcut("subwindow:selection", tr("Toggle: {0}",
149                tr("Current Selection")), KeyEvent.VK_T, Shortcut.ALT_SHIFT),
150                150, // default height
151                true // default is "show dialog"
152        );
153
154        buildContentPanel();
155        model.addListDataListener(new TitleUpdater());
156        model.addListDataListener(actZoomToJOSMSelection);
157
158        popupMenu = new ListPopupMenu(lstPrimitives);
159        popupMenuHandler = setupPopupMenuHandler();
160
161        lstPrimitives.addListSelectionListener(e -> {
162            actZoomToListSelection.valueChanged(e);
163            popupMenuHandler.setPrimitives(model.getSelected());
164        });
165
166        lstPrimitives.addMouseListener(new MouseEventHandler());
167
168        InputMapUtils.addEnterAction(lstPrimitives, actZoomToListSelection);
169    }
170
171    @Override
172    public void showNotify() {
173        SelectionEventManager.getInstance().addSelectionListenerForEdt(actShowHistory);
174        SelectionEventManager.getInstance().addSelectionListenerForEdt(model);
175        DatasetEventManager.getInstance().addDatasetListener(model, FireMode.IN_EDT);
176        MainApplication.getLayerManager().addActiveLayerChangeListener(actSearch);
177        // editLayerChanged also gets the selection history of the level. Listener calls setJOSMSelection when fired.
178        MainApplication.getLayerManager().addAndFireActiveLayerChangeListener(model);
179        actSearch.updateEnabledState();
180    }
181
182    @Override
183    public void hideNotify() {
184        MainApplication.getLayerManager().removeActiveLayerChangeListener(actSearch);
185        MainApplication.getLayerManager().removeActiveLayerChangeListener(model);
186        SelectionEventManager.getInstance().removeSelectionListener(actShowHistory);
187        SelectionEventManager.getInstance().removeSelectionListener(model);
188        DatasetEventManager.getInstance().removeDatasetListener(model);
189    }
190
191    /**
192     * Responds to double clicks on the list of selected objects and launches the popup menu
193     */
194    class MouseEventHandler extends PopupMenuLauncher {
195        private final HighlightHelper helper = new HighlightHelper();
196        private final boolean highlightEnabled = Config.getPref().getBoolean("draw.target-highlight", true);
197
198        MouseEventHandler() {
199            super(popupMenu);
200        }
201
202        @Override
203        public void mouseClicked(MouseEvent e) {
204            int idx = lstPrimitives.locationToIndex(e.getPoint());
205            if (idx < 0) return;
206            if (isDoubleClick(e)) {
207                DataSet ds = MainApplication.getLayerManager().getActiveDataSet();
208                if (ds == null) return;
209                OsmPrimitive osm = model.getElementAt(idx);
210                Collection<OsmPrimitive> sel = ds.getSelected();
211                if (sel.size() != 1 || !sel.iterator().next().equals(osm)) {
212                    // Select primitive if it's not the whole current selection
213                    ds.setSelected(Collections.singleton(osm));
214                } else if (osm instanceof Relation) {
215                    // else open relation editor if applicable
216                    EditRelationAction.launchEditor((Relation) osm);
217                }
218            } else if (highlightEnabled && MainApplication.isDisplayingMapView() && helper.highlightOnly(model.getElementAt(idx))) {
219                MainApplication.getMap().mapView.repaint();
220            }
221        }
222
223        @Override
224        public void mouseExited(MouseEvent me) {
225            if (highlightEnabled) helper.clear();
226            super.mouseExited(me);
227        }
228    }
229
230    private PopupMenuHandler setupPopupMenuHandler() {
231        PopupMenuHandler handler = new PopupMenuHandler(popupMenu);
232        handler.addAction(actZoomToJOSMSelection);
233        handler.addAction(actZoomToListSelection);
234        handler.addSeparator();
235        handler.addListener(new AbstractTag2LinkPopupListener() {
236            @Override
237            public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
238                getSelectedPrimitives().forEach(primitive ->
239                        primitive.visitKeys((p, key, value) -> addLinks(popupMenu, key, value)));
240            }
241        });
242        return RelationPopupMenus.setupHandler(handler);
243    }
244
245    /**
246     * Replies the popup menu handler.
247     * @return The popup menu handler
248     */
249    public PopupMenuHandler getPopupMenuHandler() {
250        return popupMenuHandler;
251    }
252
253    /**
254     * Replies the selected OSM primitives.
255     * @return The selected OSM primitives
256     */
257    public Collection<OsmPrimitive> getSelectedPrimitives() {
258        return model.getSelected();
259    }
260
261    /**
262     * Updates the dialog title with a summary of the current JOSM selection
263     */
264    class TitleUpdater implements ListDataListener {
265        protected void updateTitle() {
266            setTitle(model.getJOSMSelectionSummary());
267        }
268
269        @Override
270        public void contentsChanged(ListDataEvent e) {
271            updateTitle();
272        }
273
274        @Override
275        public void intervalAdded(ListDataEvent e) {
276            updateTitle();
277        }
278
279        @Override
280        public void intervalRemoved(ListDataEvent e) {
281            updateTitle();
282        }
283    }
284
285    /**
286     * Launches the search dialog
287     */
288    static class SearchAction extends AbstractAction implements ActiveLayerChangeListener {
289        /**
290         * Constructs a new {@code SearchAction}.
291         */
292        SearchAction() {
293            putValue(NAME, tr("Search"));
294            putValue(SHORT_DESCRIPTION, tr("Search for objects"));
295            new ImageProvider("dialogs", "search").getResource().attachImageIcon(this, true);
296            updateEnabledState();
297        }
298
299        @Override
300        public void actionPerformed(ActionEvent e) {
301            if (!isEnabled()) return;
302            org.openstreetmap.josm.actions.search.SearchAction.search();
303        }
304
305        protected void updateEnabledState() {
306            setEnabled(MainApplication.getLayerManager().getActiveData() != null);
307        }
308
309        @Override
310        public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) {
311            updateEnabledState();
312        }
313    }
314
315    /**
316     * Sets the current JOSM selection to the OSM primitives selected in the list
317     * of this dialog
318     */
319    class SelectAction extends AbstractSelectAction implements ListSelectionListener {
320        /**
321         * Constructs a new {@code SelectAction}.
322         */
323        SelectAction() {
324            updateEnabledState();
325        }
326
327        @Override
328        public void actionPerformed(ActionEvent e) {
329            Collection<OsmPrimitive> sel = model.getSelected();
330            if (sel.isEmpty()) return;
331            OsmData<?, ?, ?, ?> ds = MainApplication.getLayerManager().getActiveData();
332            if (ds == null) return;
333            ds.setSelected(sel);
334            model.selectionModel.setSelectionInterval(0, sel.size()-1);
335        }
336
337        protected void updateEnabledState() {
338            setEnabled(!model.isSelectionEmpty());
339        }
340
341        @Override
342        public void valueChanged(ListSelectionEvent e) {
343            updateEnabledState();
344        }
345    }
346
347    /**
348     * The action for showing history information of the current history item.
349     */
350    class ShowHistoryAction extends AbstractAction implements ListSelectionListener, DataSelectionListener {
351        /**
352         * Constructs a new {@code ShowHistoryAction}.
353         */
354        ShowHistoryAction() {
355            putValue(NAME, tr("History"));
356            putValue(SHORT_DESCRIPTION, tr("Display the history of the selected objects."));
357            new ImageProvider("dialogs", "history").getResource().attachImageIcon(this, true);
358            updateEnabledState(model.getSize());
359        }
360
361        @Override
362        public void actionPerformed(ActionEvent e) {
363            Collection<OsmPrimitive> sel = model.getSelected();
364            if (sel.isEmpty() && model.getSize() != 1) {
365                return;
366            } else if (sel.isEmpty()) {
367                sel = Collections.singleton(model.getElementAt(0));
368            }
369            HistoryBrowserDialogManager.getInstance().showHistory(sel);
370        }
371
372        protected void updateEnabledState(int osmSelectionSize) {
373            // See #10830 - allow to click on history button is a single object is selected, even if not selected again in the list
374            setEnabled(!model.isSelectionEmpty() || osmSelectionSize == 1);
375        }
376
377        @Override
378        public void valueChanged(ListSelectionEvent e) {
379            updateEnabledState(model.getSize());
380        }
381
382        @Override
383        public void selectionChanged(SelectionChangeEvent event) {
384            updateEnabledState(event.getSelection().size());
385        }
386    }
387
388    /**
389     * The action for zooming to the primitives in the current JOSM selection
390     *
391     */
392    class ZoomToJOSMSelectionAction extends AbstractAction implements ListDataListener {
393
394        ZoomToJOSMSelectionAction() {
395            putValue(NAME, tr("Zoom to selection"));
396            putValue(SHORT_DESCRIPTION, tr("Zoom to selection"));
397            new ImageProvider("dialogs/autoscale", "selection").getResource().attachImageIcon(this, true);
398            updateEnabledState();
399        }
400
401        @Override
402        public void actionPerformed(ActionEvent e) {
403            AutoScaleAction.autoScale(AutoScaleMode.SELECTION);
404        }
405
406        public void updateEnabledState() {
407            setEnabled(model.getSize() > 0);
408        }
409
410        @Override
411        public void contentsChanged(ListDataEvent e) {
412            updateEnabledState();
413        }
414
415        @Override
416        public void intervalAdded(ListDataEvent e) {
417            updateEnabledState();
418        }
419
420        @Override
421        public void intervalRemoved(ListDataEvent e) {
422            updateEnabledState();
423        }
424    }
425
426    /**
427     * The action for zooming to the primitives which are currently selected in
428     * the list displaying the JOSM selection
429     *
430     */
431    class ZoomToListSelection extends AbstractAction implements ListSelectionListener {
432        /**
433         * Constructs a new {@code ZoomToListSelection}.
434         */
435        ZoomToListSelection() {
436            putValue(NAME, tr("Zoom to selected element(s)"));
437            putValue(SHORT_DESCRIPTION, tr("Zoom to selected element(s)"));
438            new ImageProvider("dialogs/autoscale", "selection").getResource().attachImageIcon(this, true);
439            updateEnabledState();
440        }
441
442        @Override
443        public void actionPerformed(ActionEvent e) {
444            BoundingXYVisitor v = new BoundingXYVisitor();
445            Collection<OsmPrimitive> sel = model.getSelected();
446            if (sel.isEmpty()) return;
447            v.computeBoundingBox(sel);
448            if (v.getBounds() == null)
449                return;
450            MainApplication.getMap().mapView.zoomTo(v);
451        }
452
453        protected void updateEnabledState() {
454            setEnabled(!model.isSelectionEmpty());
455        }
456
457        @Override
458        public void valueChanged(ListSelectionEvent e) {
459            updateEnabledState();
460        }
461    }
462
463    /**
464     * The list model for the list of OSM primitives in the current JOSM selection.
465     *
466     * The model also maintains a history of the last {@link SelectionListModel#SELECTION_HISTORY_SIZE}
467     * JOSM selection.
468     *
469     */
470    static class SelectionListModel extends AbstractListModel<OsmPrimitive>
471    implements ActiveLayerChangeListener, DataSelectionListener, DataSetListener {
472
473        private static final int SELECTION_HISTORY_SIZE = 10;
474
475        // Variable to store history from currentDataSet()
476        private LinkedList<Collection<? extends OsmPrimitive>> history;
477        private final transient List<OsmPrimitive> selection = new ArrayList<>();
478        private final DefaultListSelectionModel selectionModel;
479
480        /**
481         * Constructor
482         * @param selectionModel the selection model used in the list
483         */
484        SelectionListModel(DefaultListSelectionModel selectionModel) {
485            this.selectionModel = selectionModel;
486        }
487
488        /**
489         * Replies a summary of the current JOSM selection
490         *
491         * @return a summary of the current JOSM selection
492         */
493        public synchronized String getJOSMSelectionSummary() {
494            if (selection.isEmpty()) return tr("Selection");
495            int numNodes = 0;
496            int numWays = 0;
497            int numRelations = 0;
498            for (OsmPrimitive p: selection) {
499                switch(p.getType()) {
500                case NODE: numNodes++; break;
501                case WAY: numWays++; break;
502                case RELATION: numRelations++; break;
503                default: throw new AssertionError();
504                }
505            }
506            return tr("Sel.: Rel.:{0} / Ways:{1} / Nodes:{2}", numRelations, numWays, numNodes);
507        }
508
509        /**
510         * Remembers a JOSM selection the history of JOSM selections
511         *
512         * @param selection the JOSM selection. Ignored if null or empty.
513         */
514        public void remember(Collection<? extends OsmPrimitive> selection) {
515            if (selection == null) return;
516            if (selection.isEmpty()) return;
517            if (history == null) return;
518            if (history.isEmpty()) {
519                history.add(selection);
520                return;
521            }
522            if (history.getFirst().equals(selection)) return;
523            history.addFirst(selection);
524            for (int i = 1; i < history.size(); ++i) {
525                if (history.get(i).equals(selection)) {
526                    history.remove(i);
527                    break;
528                }
529            }
530            int maxsize = Config.getPref().getInt("select.history-size", SELECTION_HISTORY_SIZE);
531            while (history.size() > maxsize) {
532                history.removeLast();
533            }
534        }
535
536        /**
537         * Replies the history of JOSM selections
538         *
539         * @return history of JOSM selections
540         */
541        public List<Collection<? extends OsmPrimitive>> getSelectionHistory() {
542            return history;
543        }
544
545        @Override
546        public synchronized OsmPrimitive getElementAt(int index) {
547            return selection.get(index);
548        }
549
550        @Override
551        public synchronized int getSize() {
552            return selection.size();
553        }
554
555        /**
556         * Determines if no OSM primitives are currently selected.
557         * @return {@code true} if no OSM primitives are currently selected
558         * @since 10383
559         */
560        public boolean isSelectionEmpty() {
561            return selectionModel.isSelectionEmpty();
562        }
563
564        /**
565         * Replies the collection of OSM primitives currently selected in the view of this model
566         *
567         * @return chosen elements in the view
568         */
569        public synchronized Collection<OsmPrimitive> getSelected() {
570            Set<OsmPrimitive> sel = new HashSet<>();
571            for (int i = 0; i < getSize(); i++) {
572                if (selectionModel.isSelectedIndex(i)) {
573                    sel.add(selection.get(i));
574                }
575            }
576            return sel;
577        }
578
579        /**
580         * Sets the OSM primitives to be selected in the view of this model
581         *
582         * @param sel the collection of primitives to select
583         */
584        public synchronized void setSelected(Collection<OsmPrimitive> sel) {
585            selectionModel.setValueIsAdjusting(true);
586            selectionModel.clearSelection();
587            if (sel != null) {
588                for (OsmPrimitive p: sel) {
589                    int i = selection.indexOf(p);
590                    if (i >= 0) {
591                        selectionModel.addSelectionInterval(i, i);
592                    }
593                }
594            }
595            selectionModel.setValueIsAdjusting(false);
596        }
597
598        @Override
599        protected void fireContentsChanged(Object source, int index0, int index1) {
600            Collection<OsmPrimitive> sel = getSelected();
601            super.fireContentsChanged(source, index0, index1);
602            setSelected(sel);
603        }
604
605        /**
606         * Sets the collection of currently selected OSM objects
607         *
608         * @param selection the collection of currently selected OSM objects
609         */
610        public void setJOSMSelection(final Collection<? extends OsmPrimitive> selection) {
611            synchronized (this) {
612                this.selection.clear();
613                if (selection != null) {
614                    this.selection.addAll(selection);
615                    sort();
616                }
617            }
618            GuiHelper.runInEDTAndWait(new Runnable() {
619                @Override public void run() {
620                    fireContentsChanged(this, 0, getSize());
621                    if (selection != null) {
622                        remember(selection);
623                    }
624                }
625            });
626        }
627
628        /**
629         * Triggers a refresh of the view for all primitives in {@code toUpdate}
630         * which are currently displayed in the view
631         *
632         * @param toUpdate the collection of primitives to update
633         */
634        public synchronized void update(Collection<? extends OsmPrimitive> toUpdate) {
635            if (toUpdate == null) return;
636            if (toUpdate.isEmpty()) return;
637            Collection<OsmPrimitive> sel = getSelected();
638            for (OsmPrimitive p: toUpdate) {
639                int i = selection.indexOf(p);
640                if (i >= 0) {
641                    super.fireContentsChanged(this, i, i);
642                }
643            }
644            setSelected(sel);
645        }
646
647        /**
648         * Sorts the current elements in the selection
649         */
650        public synchronized void sort() {
651            int size = selection.size();
652            if (size > 1 && size <= Config.getPref().getInt("selection.no_sort_above", 100_000)) {
653                boolean quick = size > Config.getPref().getInt("selection.fast_sort_above", 10_000);
654                Comparator<OsmPrimitive> c = Config.getPref().getBoolean("selection.sort_relations_before_ways", true)
655                        ? OsmPrimitiveComparator.orderingRelationsWaysNodes()
656                        : OsmPrimitiveComparator.orderingWaysRelationsNodes();
657                try {
658                    selection.sort(c.thenComparing(quick
659                            ? OsmPrimitiveComparator.comparingUniqueId()
660                            : OsmPrimitiveComparator.comparingNames()));
661                } catch (IllegalArgumentException e) {
662                    throw BugReport.intercept(e).put("size", size).put("quick", quick).put("selection", selection);
663                }
664            }
665        }
666
667        /* ------------------------------------------------------------------------ */
668        /* interface ActiveLayerChangeListener                                      */
669        /* ------------------------------------------------------------------------ */
670        @Override
671        public void activeOrEditLayerChanged(ActiveLayerChangeEvent e) {
672            DataSet newData = e.getSource().getEditDataSet();
673            if (newData == null) {
674                setJOSMSelection(null);
675                history = null;
676            } else {
677                history = newData.getSelectionHistory();
678                setJOSMSelection(newData.getAllSelected());
679            }
680        }
681
682        /* ------------------------------------------------------------------------ */
683        /* interface DataSelectionListener                                          */
684        /* ------------------------------------------------------------------------ */
685        @Override
686        public void selectionChanged(SelectionChangeEvent event) {
687            setJOSMSelection(event.getSelection());
688        }
689
690        /* ------------------------------------------------------------------------ */
691        /* interface DataSetListener                                                */
692        /* ------------------------------------------------------------------------ */
693        @Override
694        public void dataChanged(DataChangedEvent event) {
695            // refresh the whole list
696            fireContentsChanged(this, 0, getSize());
697        }
698
699        @Override
700        public void nodeMoved(NodeMovedEvent event) {
701            // may influence the display name of primitives, update the data
702            update(event.getPrimitives());
703        }
704
705        @Override
706        public void otherDatasetChange(AbstractDatasetChangedEvent event) {
707            // may influence the display name of primitives, update the data
708            update(event.getPrimitives());
709        }
710
711        @Override
712        public void relationMembersChanged(RelationMembersChangedEvent event) {
713            // may influence the display name of primitives, update the data
714            update(event.getPrimitives());
715        }
716
717        @Override
718        public void tagsChanged(TagsChangedEvent event) {
719            // may influence the display name of primitives, update the data
720            update(event.getPrimitives());
721        }
722
723        @Override
724        public void wayNodesChanged(WayNodesChangedEvent event) {
725            // may influence the display name of primitives, update the data
726            update(event.getPrimitives());
727        }
728
729        @Override
730        public void primitivesAdded(PrimitivesAddedEvent event) {
731            /* ignored - handled by SelectionChangeListener */
732        }
733
734        @Override
735        public void primitivesRemoved(PrimitivesRemovedEvent event) {
736            /* ignored - handled by SelectionChangeListener*/
737        }
738    }
739
740    /**
741     * A specialized {@link JMenuItem} for presenting one entry of the search history
742     *
743     * @author Jan Peter Stotz
744     */
745    protected static class SearchMenuItem extends JMenuItem implements ActionListener {
746        protected final transient SearchSetting s;
747
748        public SearchMenuItem(SearchSetting s) {
749            super(Utils.shortenString(s.toString(),
750                    org.openstreetmap.josm.actions.search.SearchAction.MAX_LENGTH_SEARCH_EXPRESSION_DISPLAY));
751            this.s = s;
752            addActionListener(this);
753        }
754
755        @Override
756        public void actionPerformed(ActionEvent e) {
757            org.openstreetmap.josm.actions.search.SearchAction.searchStateless(s);
758        }
759    }
760
761    /**
762     * The popup menu for the search history entries
763     *
764     */
765    protected static class SearchPopupMenu extends JPopupMenu {
766        public static void launch(Component parent) {
767            if (org.openstreetmap.josm.actions.search.SearchAction.getSearchHistory().isEmpty())
768                return;
769            if (parent.isShowing()) {
770                JPopupMenu menu = new SearchPopupMenu();
771                Rectangle r = parent.getBounds();
772                menu.show(parent, r.x, r.y + r.height);
773            }
774        }
775
776        /**
777         * Constructs a new {@code SearchPopupMenu}.
778         */
779        public SearchPopupMenu() {
780            for (SearchSetting ss: org.openstreetmap.josm.actions.search.SearchAction.getSearchHistory()) {
781                add(new SearchMenuItem(ss));
782            }
783        }
784    }
785
786    /**
787     * A specialized {@link JMenuItem} for presenting one entry of the selection history
788     *
789     * @author Jan Peter Stotz
790     */
791    protected static class SelectionMenuItem extends JMenuItem implements ActionListener {
792        protected transient Collection<? extends OsmPrimitive> sel;
793
794        public SelectionMenuItem(Collection<? extends OsmPrimitive> sel) {
795            this.sel = sel;
796            int ways = 0;
797            int nodes = 0;
798            int relations = 0;
799            for (OsmPrimitive o : sel) {
800                if (!o.isSelectable()) continue; // skip unselectable primitives
801                if (o instanceof Way) {
802                    ways++;
803                } else if (o instanceof Node) {
804                    nodes++;
805                } else if (o instanceof Relation) {
806                    relations++;
807                }
808            }
809            StringBuilder text = new StringBuilder();
810            if (ways != 0) {
811                text.append(text.length() > 0 ? ", " : "")
812                .append(trn("{0} way", "{0} ways", ways, ways));
813            }
814            if (nodes != 0) {
815                text.append(text.length() > 0 ? ", " : "")
816                .append(trn("{0} node", "{0} nodes", nodes, nodes));
817            }
818            if (relations != 0) {
819                text.append(text.length() > 0 ? ", " : "")
820                .append(trn("{0} relation", "{0} relations", relations, relations));
821            }
822            if (ways + nodes + relations == 0) {
823                text.append(tr("Unselectable now"));
824                this.sel = new ArrayList<>(); // empty selection
825            }
826            DefaultNameFormatter df = DefaultNameFormatter.getInstance();
827            if (ways + nodes + relations == 1) {
828                text.append(": ");
829                for (OsmPrimitive o : sel) {
830                    text.append(o.getDisplayName(df));
831                }
832                setText(text.toString());
833            } else {
834                setText(tr("Selection: {0}", text));
835            }
836            addActionListener(this);
837        }
838
839        @Override
840        public void actionPerformed(ActionEvent e) {
841            MainApplication.getLayerManager().getActiveDataSet().setSelected(sel);
842        }
843    }
844
845    /**
846     * The popup menu for the JOSM selection history entries
847     */
848    protected static class SelectionHistoryPopup extends JPopupMenu {
849        public static void launch(Component parent, Collection<Collection<? extends OsmPrimitive>> history) {
850            if (history == null || history.isEmpty()) return;
851            if (parent.isShowing()) {
852                JPopupMenu menu = new SelectionHistoryPopup(history);
853                Rectangle r = parent.getBounds();
854                menu.show(parent, r.x, r.y + r.height);
855            }
856        }
857
858        public SelectionHistoryPopup(Collection<Collection<? extends OsmPrimitive>> history) {
859            for (Collection<? extends OsmPrimitive> sel : history) {
860                add(new SelectionMenuItem(sel));
861            }
862        }
863    }
864
865    /**
866     * A transfer handler class for drag-and-drop support.
867     */
868    protected class SelectionTransferHandler extends TransferHandler {
869
870        @Override
871        public int getSourceActions(JComponent c) {
872            return COPY;
873        }
874
875        @Override
876        protected Transferable createTransferable(JComponent c) {
877            return new PrimitiveTransferable(PrimitiveTransferData.getData(getSelectedPrimitives()));
878        }
879    }
880}