1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.data.osm.event;
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3 |
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4 | import static org.junit.jupiter.api.Assertions.assertEquals;
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5 |
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6 | import java.util.Arrays;
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7 | import java.util.Collection;
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8 | import java.util.HashSet;
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9 | import java.util.List;
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10 |
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11 | import org.junit.jupiter.api.Test;
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12 | import org.junit.jupiter.api.extension.RegisterExtension;
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13 | import org.openstreetmap.josm.command.CommandTest.CommandTestDataWithRelation;
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14 | import org.openstreetmap.josm.data.osm.DataSelectionListener;
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15 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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16 | import org.openstreetmap.josm.gui.MainApplication;
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17 | import org.openstreetmap.josm.gui.util.GuiHelper;
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18 | import org.openstreetmap.josm.testutils.JOSMTestRules;
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19 |
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20 | import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
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21 |
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22 | /**
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23 | * Tests the {@link SelectionEventManager}
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24 | * @author Michael Zangl
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25 | * @since 12048
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26 | */
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27 | class SelectionEventManagerTest {
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28 | private final class SelectionListener implements DataSelectionListener {
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29 | private Collection<? extends OsmPrimitive> newSelection;
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30 | private final String name;
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31 |
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32 | SelectionListener(String name) {
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33 | this.name = name;
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34 | }
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35 |
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36 | @Override
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37 | public void selectionChanged(SelectionChangeEvent event) {
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38 | this.newSelection = event.getSelection();
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39 | }
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40 | }
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41 |
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42 | /**
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43 | */
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44 | @RegisterExtension
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45 | @SuppressFBWarnings(value = "URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD")
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46 | public JOSMTestRules test = new JOSMTestRules().preferences();
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47 |
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48 | /**
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49 | * Tests that events in the active layer are propagated.
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50 | */
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51 | @Test
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52 | void testEventPropagation() {
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53 | // automatically adds the layers
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54 | CommandTestDataWithRelation testData1 = new CommandTestDataWithRelation();
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55 | CommandTestDataWithRelation testData2 = new CommandTestDataWithRelation();
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56 | MainApplication.getLayerManager().setActiveLayer(testData1.layer);
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57 | assertEquals(testData1.layer, MainApplication.getLayerManager().getEditLayer());
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58 |
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59 | SelectionListener listener3 = new SelectionListener("normal");
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60 | SelectionListener listener4 = new SelectionListener("edt");
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61 | SelectionEventManager instance = SelectionEventManager.getInstance();
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62 | instance.addSelectionListener(listener3);
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63 | instance.addSelectionListenerForEdt(listener4);
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64 | List<SelectionListener> listeners = Arrays.asList(listener3, listener4);
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65 | assertSelectionEquals(listeners, null);
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66 |
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67 | // active layer, should change
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68 | testData1.layer.getDataSet().setSelected(testData1.existingNode.getPrimitiveId());
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69 | assertSelectionEquals(listeners, new HashSet<OsmPrimitive>(Arrays.asList(testData1.existingNode)));
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70 |
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71 | testData1.layer.getDataSet().clearSelection(testData1.existingNode.getPrimitiveId());
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72 | assertSelectionEquals(listeners, new HashSet<OsmPrimitive>(Arrays.asList()));
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73 |
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74 | testData1.layer.getDataSet().addSelected(testData1.existingNode2.getPrimitiveId());
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75 | assertSelectionEquals(listeners, new HashSet<OsmPrimitive>(Arrays.asList(testData1.existingNode2)));
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76 |
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77 | // changing to other dataset should trigger a empty selection
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78 | MainApplication.getLayerManager().setActiveLayer(testData2.layer);
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79 | assertSelectionEquals(listeners, new HashSet<OsmPrimitive>(Arrays.asList()));
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80 |
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81 | // This should not trigger anything, since the layer is not active any more.
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82 | testData1.layer.getDataSet().clearSelection(testData1.existingNode.getPrimitiveId());
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83 | assertSelectionEquals(listeners, null);
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84 |
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85 | testData2.layer.getDataSet().setSelected(testData2.existingNode.getPrimitiveId());
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86 | assertSelectionEquals(listeners, new HashSet<OsmPrimitive>(Arrays.asList(testData2.existingNode)));
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87 |
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88 | // removal
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89 | instance.removeSelectionListener(listener3);
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90 | instance.removeSelectionListener(listener4);
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91 |
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92 | // no event triggered now
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93 | testData2.layer.getDataSet().setSelected(testData2.existingNode2.getPrimitiveId());
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94 | assertSelectionEquals(listeners, null);
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95 | }
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96 |
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97 | private void assertSelectionEquals(List<SelectionListener> listeners, Object should) {
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98 | // sync
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99 | GuiHelper.runInEDTAndWait(() -> { });
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100 | for (SelectionListener listener : listeners) {
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101 | assertEquals(should, listener.newSelection, listener.name);
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102 | listener.newSelection = null;
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103 | }
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104 | }
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105 |
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106 | }
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