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.Rectangle;
009import java.awt.event.ActionEvent;
010import java.awt.event.ActionListener;
011import java.awt.event.KeyEvent;
012import java.awt.event.MouseEvent;
013import java.util.ArrayList;
014import java.util.Arrays;
015import java.util.Collection;
016import java.util.Collections;
017import java.util.HashSet;
018import java.util.Iterator;
019import java.util.LinkedList;
020import java.util.List;
021import java.util.Set;
022
023import javax.swing.AbstractAction;
024import javax.swing.AbstractListModel;
025import javax.swing.DefaultListSelectionModel;
026import javax.swing.JList;
027import javax.swing.JMenuItem;
028import javax.swing.JPopupMenu;
029import javax.swing.ListSelectionModel;
030import javax.swing.event.ListDataEvent;
031import javax.swing.event.ListDataListener;
032import javax.swing.event.ListSelectionEvent;
033import javax.swing.event.ListSelectionListener;
034
035import org.openstreetmap.josm.Main;
036import org.openstreetmap.josm.actions.AbstractSelectAction;
037import org.openstreetmap.josm.actions.AutoScaleAction;
038import org.openstreetmap.josm.actions.relation.DownloadSelectedIncompleteMembersAction;
039import org.openstreetmap.josm.actions.relation.EditRelationAction;
040import org.openstreetmap.josm.actions.relation.SelectInRelationListAction;
041import org.openstreetmap.josm.actions.search.SearchAction.SearchSetting;
042import org.openstreetmap.josm.data.SelectionChangedListener;
043import org.openstreetmap.josm.data.coor.LatLon;
044import org.openstreetmap.josm.data.osm.Node;
045import org.openstreetmap.josm.data.osm.OsmPrimitive;
046import org.openstreetmap.josm.data.osm.OsmPrimitiveComparator;
047import org.openstreetmap.josm.data.osm.Relation;
048import org.openstreetmap.josm.data.osm.Way;
049import org.openstreetmap.josm.data.osm.event.AbstractDatasetChangedEvent;
050import org.openstreetmap.josm.data.osm.event.DataChangedEvent;
051import org.openstreetmap.josm.data.osm.event.DataSetListener;
052import org.openstreetmap.josm.data.osm.event.DatasetEventManager;
053import org.openstreetmap.josm.data.osm.event.DatasetEventManager.FireMode;
054import org.openstreetmap.josm.data.osm.event.NodeMovedEvent;
055import org.openstreetmap.josm.data.osm.event.PrimitivesAddedEvent;
056import org.openstreetmap.josm.data.osm.event.PrimitivesRemovedEvent;
057import org.openstreetmap.josm.data.osm.event.RelationMembersChangedEvent;
058import org.openstreetmap.josm.data.osm.event.SelectionEventManager;
059import org.openstreetmap.josm.data.osm.event.TagsChangedEvent;
060import org.openstreetmap.josm.data.osm.event.WayNodesChangedEvent;
061import org.openstreetmap.josm.data.osm.visitor.BoundingXYVisitor;
062import org.openstreetmap.josm.gui.DefaultNameFormatter;
063import org.openstreetmap.josm.gui.MapView;
064import org.openstreetmap.josm.gui.MapView.EditLayerChangeListener;
065import org.openstreetmap.josm.gui.OsmPrimitivRenderer;
066import org.openstreetmap.josm.gui.PopupMenuHandler;
067import org.openstreetmap.josm.gui.SideButton;
068import org.openstreetmap.josm.gui.history.HistoryBrowserDialogManager;
069import org.openstreetmap.josm.gui.layer.OsmDataLayer;
070import org.openstreetmap.josm.gui.util.GuiHelper;
071import org.openstreetmap.josm.gui.util.HighlightHelper;
072import org.openstreetmap.josm.gui.widgets.ListPopupMenu;
073import org.openstreetmap.josm.gui.widgets.PopupMenuLauncher;
074import org.openstreetmap.josm.tools.ImageProvider;
075import org.openstreetmap.josm.tools.InputMapUtils;
076import org.openstreetmap.josm.tools.Shortcut;
077import org.openstreetmap.josm.tools.SubclassFilteredCollection;
078import org.openstreetmap.josm.tools.Utils;
079
080/**
081 * A small tool dialog for displaying the current selection.
082 * @since 8
083 */
084public class SelectionListDialog extends ToggleDialog  {
085    private JList<OsmPrimitive> lstPrimitives;
086    private final DefaultListSelectionModel selectionModel = new DefaultListSelectionModel();
087    private final SelectionListModel model = new SelectionListModel(selectionModel);
088
089    private final SelectAction actSelect = new SelectAction();
090    private final SearchAction actSearch = new SearchAction();
091    private final ShowHistoryAction actShowHistory = new ShowHistoryAction();
092    private final ZoomToJOSMSelectionAction actZoomToJOSMSelection = new ZoomToJOSMSelectionAction();
093    private final ZoomToListSelection actZoomToListSelection = new ZoomToListSelection();
094    private final SelectInRelationListAction actSetRelationSelection = new SelectInRelationListAction();
095    private final EditRelationAction actEditRelationSelection = new EditRelationAction();
096    private final DownloadSelectedIncompleteMembersAction actDownloadSelIncompleteMembers = new DownloadSelectedIncompleteMembersAction();
097
098    /** the popup menu and its handler */
099    private final ListPopupMenu popupMenu;
100    private final PopupMenuHandler popupMenuHandler;
101
102    /**
103     * Builds the content panel for this dialog
104     */
105    protected void buildContentPanel() {
106        lstPrimitives = new JList<>(model);
107        lstPrimitives.setSelectionMode(ListSelectionModel.MULTIPLE_INTERVAL_SELECTION);
108        lstPrimitives.setSelectionModel(selectionModel);
109        lstPrimitives.setCellRenderer(new OsmPrimitivRenderer());
110        // Fix #6290. Drag & Drop is not supported anyway and Copy/Paste is better propagated to main window
111        lstPrimitives.setTransferHandler(null);
112
113        lstPrimitives.getSelectionModel().addListSelectionListener(actSelect);
114        lstPrimitives.getSelectionModel().addListSelectionListener(actShowHistory);
115
116        // the select action
117        final SideButton selectButton = new SideButton(actSelect);
118        selectButton.createArrow(new ActionListener() {
119            @Override
120            public void actionPerformed(ActionEvent e) {
121                SelectionHistoryPopup.launch(selectButton, model.getSelectionHistory());
122            }
123        });
124
125        // the search button
126        final SideButton searchButton = new SideButton(actSearch);
127        searchButton.createArrow(new ActionListener() {
128            @Override
129            public void actionPerformed(ActionEvent e) {
130                SearchPopupMenu.launch(searchButton);
131            }
132        });
133
134        createLayout(lstPrimitives, true, Arrays.asList(new SideButton[] {
135            selectButton, searchButton, new SideButton(actShowHistory)
136        }));
137    }
138
139    /**
140     * Constructs a new {@code SelectionListDialog}.
141     */
142    public SelectionListDialog() {
143        super(tr("Selection"), "selectionlist", tr("Open a selection list window."),
144                Shortcut.registerShortcut("subwindow:selection", tr("Toggle: {0}",
145                tr("Current Selection")), KeyEvent.VK_T, Shortcut.ALT_SHIFT),
146                150, // default height
147                true // default is "show dialog"
148        );
149
150        buildContentPanel();
151        model.addListDataListener(new TitleUpdater());
152        model.addListDataListener(actZoomToJOSMSelection);
153
154        popupMenu = new ListPopupMenu(lstPrimitives);
155        popupMenuHandler = setupPopupMenuHandler();
156
157        lstPrimitives.addListSelectionListener(new ListSelectionListener() {
158            @Override
159            public void valueChanged(ListSelectionEvent e) {
160                actZoomToListSelection.valueChanged(e);
161                popupMenuHandler.setPrimitives(model.getSelected());
162            }
163        });
164
165        lstPrimitives.addMouseListener(new MouseEventHandler());
166
167        InputMapUtils.addEnterAction(lstPrimitives, actZoomToListSelection);
168    }
169
170    @Override
171    public void showNotify() {
172        MapView.addEditLayerChangeListener(model);
173        SelectionEventManager.getInstance().addSelectionListener(actShowHistory, FireMode.IN_EDT_CONSOLIDATED);
174        SelectionEventManager.getInstance().addSelectionListener(model, FireMode.IN_EDT_CONSOLIDATED);
175        DatasetEventManager.getInstance().addDatasetListener(model, FireMode.IN_EDT);
176        MapView.addEditLayerChangeListener(actSearch);
177        // editLayerChanged also gets the selection history of the level
178        OsmDataLayer editLayer = Main.main.getEditLayer();
179        model.editLayerChanged(null, editLayer);
180        if (editLayer != null) {
181            model.setJOSMSelection(editLayer.data.getAllSelected());
182        }
183        actSearch.updateEnabledState();
184    }
185
186    @Override
187    public void hideNotify() {
188        MapView.removeEditLayerChangeListener(actSearch);
189        MapView.removeEditLayerChangeListener(model);
190        SelectionEventManager.getInstance().removeSelectionListener(actShowHistory);
191        SelectionEventManager.getInstance().removeSelectionListener(model);
192        DatasetEventManager.getInstance().removeDatasetListener(model);
193    }
194
195    /**
196     * Responds to double clicks on the list of selected objects and launches the popup menu
197     */
198    class MouseEventHandler extends PopupMenuLauncher {
199        private final HighlightHelper helper = new HighlightHelper();
200        private boolean highlightEnabled = Main.pref.getBoolean("draw.target-highlight", true);
201        public MouseEventHandler() {
202            super(popupMenu);
203        }
204
205        @Override
206        public void mouseClicked(MouseEvent e) {
207            int idx = lstPrimitives.locationToIndex(e.getPoint());
208            if (idx < 0) return;
209            if (isDoubleClick(e)) {
210                OsmDataLayer layer = Main.main.getEditLayer();
211                if (layer == null) return;
212                OsmPrimitive osm = model.getElementAt(idx);
213                Collection<OsmPrimitive> sel = layer.data.getSelected();
214                if (sel.size() != 1 || !sel.iterator().next().equals(osm)) {
215                    // Select primitive if it's not the whole current selection
216                    layer.data.setSelected(Collections.singleton(osm));
217                } else if (osm instanceof Relation) {
218                    // else open relation editor if applicable
219                    actEditRelationSelection.actionPerformed(null);
220                }
221            } else if (highlightEnabled && Main.isDisplayingMapView()) {
222                if (helper.highlightOnly(model.getElementAt(idx))) {
223                    Main.map.mapView.repaint();
224                }
225            }
226        }
227
228        @Override
229        public void mouseExited(MouseEvent me) {
230            if (highlightEnabled) helper.clear();
231            super.mouseExited(me);
232        }
233    }
234
235    private PopupMenuHandler setupPopupMenuHandler() {
236        PopupMenuHandler handler = new PopupMenuHandler(popupMenu);
237        handler.addAction(actZoomToJOSMSelection);
238        handler.addAction(actZoomToListSelection);
239        handler.addSeparator();
240        handler.addAction(actSetRelationSelection);
241        handler.addAction(actEditRelationSelection);
242        handler.addSeparator();
243        handler.addAction(actDownloadSelIncompleteMembers);
244        return handler;
245    }
246
247    /**
248     * Replies the popup menu handler.
249     * @return The popup menu handler
250     */
251    public PopupMenuHandler getPopupMenuHandler() {
252        return popupMenuHandler;
253    }
254
255    /**
256     * Replies the selected OSM primitives.
257     * @return The selected OSM primitives
258     */
259    public Collection<OsmPrimitive> getSelectedPrimitives() {
260        return model.getSelected();
261    }
262
263    /**
264     * Updates the dialog title with a summary of the current JOSM selection
265     */
266    class TitleUpdater implements ListDataListener {
267        protected void updateTitle() {
268            setTitle(model.getJOSMSelectionSummary());
269        }
270
271        @Override
272        public void contentsChanged(ListDataEvent e) {
273            updateTitle();
274        }
275
276        @Override
277        public void intervalAdded(ListDataEvent e) {
278            updateTitle();
279        }
280
281        @Override
282        public void intervalRemoved(ListDataEvent e) {
283            updateTitle();
284        }
285    }
286
287    /**
288     * Launches the search dialog
289     */
290    static class SearchAction extends AbstractAction implements EditLayerChangeListener {
291        /**
292         * Constructs a new {@code SearchAction}.
293         */
294        public SearchAction() {
295            putValue(NAME, tr("Search"));
296            putValue(SHORT_DESCRIPTION,   tr("Search for objects"));
297            putValue(SMALL_ICON, ImageProvider.get("dialogs","search"));
298            updateEnabledState();
299        }
300
301        @Override
302        public void actionPerformed(ActionEvent e) {
303            if (!isEnabled()) return;
304            org.openstreetmap.josm.actions.search.SearchAction.search();
305        }
306
307        protected void updateEnabledState() {
308            setEnabled(Main.main != null && Main.main.hasEditLayer());
309        }
310
311        @Override
312        public void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
313            updateEnabledState();
314        }
315    }
316
317    /**
318     * Sets the current JOSM selection to the OSM primitives selected in the list
319     * of this dialog
320     */
321    class SelectAction extends AbstractSelectAction implements ListSelectionListener {
322        /**
323         * Constructs a new {@code SelectAction}.
324         */
325        public SelectAction() {
326            updateEnabledState();
327        }
328
329        @Override
330        public void actionPerformed(ActionEvent e) {
331            Collection<OsmPrimitive> sel = model.getSelected();
332            if (sel.isEmpty())return;
333            OsmDataLayer editLayer = Main.main.getEditLayer();
334            if (editLayer == null) return;
335            editLayer.data.setSelected(sel);
336            model.selectionModel.setSelectionInterval(0, sel.size()-1);
337        }
338
339        protected void updateEnabledState() {
340            setEnabled(!model.getSelected().isEmpty());
341        }
342
343        @Override
344        public void valueChanged(ListSelectionEvent e) {
345            updateEnabledState();
346        }
347    }
348
349    /**
350     * The action for showing history information of the current history item.
351     */
352    class ShowHistoryAction extends AbstractAction implements ListSelectionListener, SelectionChangedListener {
353        /**
354         * Constructs a new {@code ShowHistoryAction}.
355         */
356        public ShowHistoryAction() {
357            putValue(NAME, tr("History"));
358            putValue(SHORT_DESCRIPTION, tr("Display the history of the selected objects."));
359            putValue(SMALL_ICON, ImageProvider.get("dialogs", "history"));
360            updateEnabledState(model.getSize());
361        }
362
363        @Override
364        public void actionPerformed(ActionEvent e) {
365            Collection<OsmPrimitive> sel = model.getSelected();
366            if (sel.isEmpty() && model.getSize() != 1) {
367                return;
368            } else if (sel.isEmpty()) {
369                sel = Collections.singleton(model.getElementAt(0));
370            }
371            HistoryBrowserDialogManager.getInstance().showHistory(sel);
372        }
373
374        protected void updateEnabledState(int osmSelectionSize) {
375            // See #10830 - allow to click on history button is a single object is selected, even if not selected again in the list
376            setEnabled(!model.getSelected().isEmpty() || osmSelectionSize == 1);
377        }
378
379        @Override
380        public void valueChanged(ListSelectionEvent e) {
381            updateEnabledState(model.getSize());
382        }
383
384        @Override
385        public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
386            updateEnabledState(newSelection.size());
387        }
388    }
389
390    /**
391     * The action for zooming to the primitives in the current JOSM selection
392     *
393     */
394    class ZoomToJOSMSelectionAction extends AbstractAction implements ListDataListener {
395
396        public ZoomToJOSMSelectionAction() {
397            putValue(NAME,tr("Zoom to selection"));
398            putValue(SHORT_DESCRIPTION, tr("Zoom to selection"));
399            putValue(SMALL_ICON, ImageProvider.get("dialogs/autoscale", "selection"));
400            updateEnabledState();
401        }
402
403        @Override
404        public void actionPerformed(ActionEvent e) {
405            AutoScaleAction.autoScale("selection");
406        }
407
408        public void updateEnabledState() {
409            setEnabled(model.getSize() > 0);
410        }
411
412        @Override
413        public void contentsChanged(ListDataEvent e) {
414            updateEnabledState();
415        }
416
417        @Override
418        public void intervalAdded(ListDataEvent e) {
419            updateEnabledState();
420        }
421
422        @Override
423        public void intervalRemoved(ListDataEvent e) {
424            updateEnabledState();
425        }
426    }
427
428    /**
429     * The action for zooming to the primitives which are currently selected in
430     * the list displaying the JOSM selection
431     *
432     */
433    class ZoomToListSelection extends AbstractAction implements ListSelectionListener {
434        /**
435         * Constructs a new {@code ZoomToListSelection}.
436         */
437        public ZoomToListSelection() {
438            putValue(NAME, tr("Zoom to selected element(s)"));
439            putValue(SHORT_DESCRIPTION, tr("Zoom to selected element(s)"));
440            putValue(SMALL_ICON, ImageProvider.get("dialogs/autoscale", "selection"));
441            updateEnabledState();
442        }
443
444        @Override
445        public void actionPerformed(ActionEvent e) {
446            BoundingXYVisitor box = new BoundingXYVisitor();
447            Collection<OsmPrimitive> sel = model.getSelected();
448            if (sel.isEmpty()) return;
449            box.computeBoundingBox(sel);
450            if (box.getBounds() == null)
451                return;
452            box.enlargeBoundingBox();
453            Main.map.mapView.zoomTo(box);
454        }
455
456        protected void updateEnabledState() {
457            setEnabled(!model.getSelected().isEmpty());
458        }
459
460        @Override
461        public void valueChanged(ListSelectionEvent e) {
462            updateEnabledState();
463        }
464    }
465
466    /**
467     * The list model for the list of OSM primitives in the current JOSM selection.
468     *
469     * The model also maintains a history of the last {@link SelectionListModel#SELECTION_HISTORY_SIZE}
470     * JOSM selection.
471     *
472     */
473    private static class SelectionListModel extends AbstractListModel<OsmPrimitive> implements EditLayerChangeListener, SelectionChangedListener, DataSetListener{
474
475        private static final int SELECTION_HISTORY_SIZE = 10;
476
477        // Variable to store history from currentDataSet()
478        private LinkedList<Collection<? extends OsmPrimitive>> history;
479        private final List<OsmPrimitive> selection = new ArrayList<>();
480        private DefaultListSelectionModel selectionModel;
481
482        /**
483         * Constructor
484         * @param selectionModel the selection model used in the list
485         */
486        public SelectionListModel(DefaultListSelectionModel selectionModel) {
487            this.selectionModel = selectionModel;
488        }
489
490        /**
491         * Replies a summary of the current JOSM selection
492         *
493         * @return a summary of the current JOSM selection
494         */
495        public String getJOSMSelectionSummary() {
496            if (selection.isEmpty()) return tr("Selection");
497            int numNodes = 0;
498            int numWays = 0;
499            int numRelations = 0;
500            for (OsmPrimitive p: selection) {
501                switch(p.getType()) {
502                case NODE: numNodes++; break;
503                case WAY: numWays++; break;
504                case RELATION: numRelations++; break;
505                }
506            }
507            return tr("Sel.: Rel.:{0} / Ways:{1} / Nodes:{2}", numRelations, numWays, numNodes);
508        }
509
510        /**
511         * Remembers a JOSM selection the history of JOSM selections
512         *
513         * @param selection the JOSM selection. Ignored if null or empty.
514         */
515        public void remember(Collection<? extends OsmPrimitive> selection) {
516            if (selection == null)return;
517            if (selection.isEmpty())return;
518            if (history == null) return;
519            if (history.isEmpty()) {
520                history.add(selection);
521                return;
522            }
523            if (history.getFirst().equals(selection)) return;
524            history.addFirst(selection);
525            for(int i = 1; i < history.size(); ++i) {
526                if(history.get(i).equals(selection)) {
527                    history.remove(i);
528                    break;
529                }
530            }
531            int maxsize = Main.pref.getInteger("select.history-size", SELECTION_HISTORY_SIZE);
532            while (history.size() > maxsize) {
533                history.removeLast();
534            }
535        }
536
537        /**
538         * Replies the history of JOSM selections
539         *
540         * @return history of JOSM selections
541         */
542        public List<Collection<? extends OsmPrimitive>> getSelectionHistory() {
543            return history;
544        }
545
546        @Override
547        public OsmPrimitive getElementAt(int index) {
548            return selection.get(index);
549        }
550
551        @Override
552        public int getSize() {
553            return selection.size();
554        }
555
556        /**
557         * Replies the collection of OSM primitives currently selected in the view
558         * of this model
559         *
560         * @return choosen elements in the view
561         */
562        public Collection<OsmPrimitive> getSelected() {
563            Set<OsmPrimitive> sel = new HashSet<>();
564            for(int i=0; i< getSize();i++) {
565                if (selectionModel.isSelectedIndex(i)) {
566                    sel.add(selection.get(i));
567                }
568            }
569            return sel;
570        }
571
572        /**
573         * Sets the OSM primitives to be selected in the view of this model
574         *
575         * @param sel the collection of primitives to select
576         */
577        public void setSelected(Collection<OsmPrimitive> sel) {
578            selectionModel.clearSelection();
579            if (sel == null) return;
580            for (OsmPrimitive p: sel){
581                int i = selection.indexOf(p);
582                if (i >= 0){
583                    selectionModel.addSelectionInterval(i, i);
584                }
585            }
586        }
587
588        @Override
589        protected void fireContentsChanged(Object source, int index0, int index1) {
590            Collection<OsmPrimitive> sel = getSelected();
591            super.fireContentsChanged(source, index0, index1);
592            setSelected(sel);
593        }
594
595        /**
596         * Sets the collection of currently selected OSM objects
597         *
598         * @param selection the collection of currently selected OSM objects
599         */
600        public void setJOSMSelection(final Collection<? extends OsmPrimitive> selection) {
601            this.selection.clear();
602            if (selection != null) {
603                this.selection.addAll(selection);
604                sort();
605            }
606            GuiHelper.runInEDTAndWait(new Runnable() {
607                @Override public void run() {
608                    fireContentsChanged(this, 0, getSize());
609                    if (selection != null) {
610                        remember(selection);
611                        if (selection.size() == 2) {
612                            Iterator<? extends OsmPrimitive> it = selection.iterator();
613                            OsmPrimitive n1 = it.next();
614                            OsmPrimitive n2 = it.next();
615                            // show distance between two selected nodes with coordinates
616                            if (n1 instanceof Node && n2 instanceof Node) {
617                                LatLon c1 = ((Node) n1).getCoor();
618                                LatLon c2 = ((Node) n2).getCoor();
619                                if (c1 != null && c2 != null) {
620                                    Main.map.statusLine.setDist(c1.greatCircleDistance(c2));
621                                    return;
622                                }
623                            }
624                        }
625                        Main.map.statusLine.setDist(
626                                new SubclassFilteredCollection<OsmPrimitive, Way>(selection, OsmPrimitive.wayPredicate));
627                    }
628                }
629            });
630        }
631
632        /**
633         * Triggers a refresh of the view for all primitives in {@code toUpdate}
634         * which are currently displayed in the view
635         *
636         * @param toUpdate the collection of primitives to update
637         */
638        public void update(Collection<? extends OsmPrimitive> toUpdate) {
639            if (toUpdate == null) return;
640            if (toUpdate.isEmpty()) return;
641            Collection<OsmPrimitive> sel = getSelected();
642            for (OsmPrimitive p: toUpdate){
643                int i = selection.indexOf(p);
644                if (i >= 0) {
645                    super.fireContentsChanged(this, i,i);
646                }
647            }
648            setSelected(sel);
649        }
650
651        /**
652         * Sorts the current elements in the selection
653         */
654        public void sort() {
655            if (this.selection.size() <= Main.pref.getInteger("selection.no_sort_above", 100000)) {
656                boolean quick = this.selection.size() > Main.pref.getInteger("selection.fast_sort_above", 10000);
657                Collections.sort(this.selection, new OsmPrimitiveComparator(quick, false));
658            }
659        }
660
661        /* ------------------------------------------------------------------------ */
662        /* interface EditLayerChangeListener                                        */
663        /* ------------------------------------------------------------------------ */
664        @Override
665        public void editLayerChanged(OsmDataLayer oldLayer, OsmDataLayer newLayer) {
666            if (newLayer == null) {
667                setJOSMSelection(null);
668                history = null;
669            } else {
670                history = newLayer.data.getSelectionHistory();
671                setJOSMSelection(newLayer.data.getAllSelected());
672            }
673        }
674
675        /* ------------------------------------------------------------------------ */
676        /* interface SelectionChangeListener                                        */
677        /* ------------------------------------------------------------------------ */
678        @Override
679        public void selectionChanged(Collection<? extends OsmPrimitive> newSelection) {
680            setJOSMSelection(newSelection);
681        }
682
683        /* ------------------------------------------------------------------------ */
684        /* interface DataSetListener                                                */
685        /* ------------------------------------------------------------------------ */
686        @Override
687        public void dataChanged(DataChangedEvent event) {
688            // refresh the whole list
689            fireContentsChanged(this, 0, getSize());
690        }
691
692        @Override
693        public void nodeMoved(NodeMovedEvent event) {
694            // may influence the display name of primitives, update the data
695            update(event.getPrimitives());
696        }
697
698        @Override
699        public void otherDatasetChange(AbstractDatasetChangedEvent event) {
700            // may influence the display name of primitives, update the data
701            update(event.getPrimitives());
702        }
703
704        @Override
705        public void relationMembersChanged(RelationMembersChangedEvent event) {
706            // may influence the display name of primitives, update the data
707            update(event.getPrimitives());
708        }
709
710        @Override
711        public void tagsChanged(TagsChangedEvent event) {
712            // may influence the display name of primitives, update the data
713            update(event.getPrimitives());
714        }
715
716        @Override
717        public void wayNodesChanged(WayNodesChangedEvent event) {
718            // may influence the display name of primitives, update the data
719            update(event.getPrimitives());
720        }
721
722        @Override
723        public void primitivesAdded(PrimitivesAddedEvent event) {
724            /* ignored - handled by SelectionChangeListener */
725        }
726
727        @Override
728        public void primitivesRemoved(PrimitivesRemovedEvent event) {
729            /* ignored - handled by SelectionChangeListener*/
730        }
731    }
732
733    /**
734     * A specialized {@link JMenuItem} for presenting one entry of the search history
735     *
736     * @author Jan Peter Stotz
737     */
738    protected static class SearchMenuItem extends JMenuItem implements ActionListener {
739        protected final SearchSetting s;
740
741        public SearchMenuItem(SearchSetting s) {
742            super(Utils.shortenString(s.toString(),
743                    org.openstreetmap.josm.actions.search.SearchAction.MAX_LENGTH_SEARCH_EXPRESSION_DISPLAY));
744            this.s = s;
745            addActionListener(this);
746        }
747
748        @Override
749        public void actionPerformed(ActionEvent e) {
750            org.openstreetmap.josm.actions.search.SearchAction.searchWithoutHistory(s);
751        }
752    }
753
754    /**
755     * The popup menu for the search history entries
756     *
757     */
758    protected static class SearchPopupMenu extends JPopupMenu {
759        public static void launch(Component parent) {
760            if (org.openstreetmap.josm.actions.search.SearchAction.getSearchHistory().isEmpty())
761                return;
762            JPopupMenu menu = new SearchPopupMenu();
763            Rectangle r = parent.getBounds();
764            menu.show(parent, r.x, r.y + r.height);
765        }
766
767        public SearchPopupMenu() {
768            for (SearchSetting ss: org.openstreetmap.josm.actions.search.SearchAction.getSearchHistory()) {
769                add(new SearchMenuItem(ss));
770            }
771        }
772    }
773
774    /**
775     * A specialized {@link JMenuItem} for presenting one entry of the selection history
776     *
777     * @author Jan Peter Stotz
778     */
779    protected static class SelectionMenuItem extends JMenuItem implements ActionListener {
780        private final DefaultNameFormatter df = DefaultNameFormatter.getInstance();
781        protected Collection<? extends OsmPrimitive> sel;
782
783        public SelectionMenuItem(Collection<? extends OsmPrimitive> sel) {
784            super();
785            this.sel = sel;
786            int ways = 0;
787            int nodes = 0;
788            int relations = 0;
789            for (OsmPrimitive o : sel) {
790                if (! o.isSelectable()) continue; // skip unselectable primitives
791                if (o instanceof Way) {
792                    ways++;
793                } else if (o instanceof Node) {
794                    nodes++;
795                } else if (o instanceof Relation) {
796                    relations++;
797                }
798            }
799            StringBuilder text = new StringBuilder();
800            if(ways != 0) {
801                text.append(text.length() > 0 ? ", " : "")
802                .append(trn("{0} way", "{0} ways", ways, ways));
803            }
804            if(nodes != 0) {
805                text.append(text.length() > 0 ? ", " : "")
806                .append(trn("{0} node", "{0} nodes", nodes, nodes));
807            }
808            if(relations != 0) {
809                text.append(text.length() > 0 ? ", " : "")
810                .append(trn("{0} relation", "{0} relations", relations, relations));
811            }
812            if(ways + nodes + relations == 0) {
813                text.append(tr("Unselectable now"));
814                this.sel=new ArrayList<>(); // empty selection
815            }
816            if(ways + nodes + relations == 1)
817            {
818                text.append(": ");
819                for(OsmPrimitive o : sel) {
820                    text.append(o.getDisplayName(df));
821                }
822                setText(text.toString());
823            } else {
824                setText(tr("Selection: {0}", text));
825            }
826            addActionListener(this);
827        }
828
829        @Override
830        public void actionPerformed(ActionEvent e) {
831            Main.main.getCurrentDataSet().setSelected(sel);
832        }
833    }
834
835    /**
836     * The popup menu for the JOSM selection history entries
837     */
838    protected static class SelectionHistoryPopup extends JPopupMenu {
839        public static void launch(Component parent, Collection<Collection<? extends OsmPrimitive>> history) {
840            if (history == null || history.isEmpty()) return;
841            JPopupMenu menu = new SelectionHistoryPopup(history);
842            Rectangle r = parent.getBounds();
843            menu.show(parent, r.x, r.y + r.height);
844        }
845
846        public SelectionHistoryPopup(Collection<Collection<? extends OsmPrimitive>> history) {
847            for (Collection<? extends OsmPrimitive> sel : history) {
848                add(new SelectionMenuItem(sel));
849            }
850        }
851    }
852}