1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.actions;
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3 |
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4 | import static org.openstreetmap.josm.gui.help.HelpUtil.ht;
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5 | import static org.openstreetmap.josm.tools.I18n.tr;
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6 | import static org.openstreetmap.josm.tools.I18n.trn;
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7 |
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8 | import java.awt.GridBagLayout;
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9 | import java.awt.event.ActionEvent;
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10 | import java.awt.event.KeyEvent;
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11 | import java.util.Collection;
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12 | import java.util.Collections;
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13 |
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14 | import javax.swing.JOptionPane;
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15 | import javax.swing.JPanel;
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16 |
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17 | import org.openstreetmap.josm.command.DeleteCommand.DeletionCallback;
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18 | import org.openstreetmap.josm.data.osm.DefaultNameFormatter;
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19 | import org.openstreetmap.josm.data.osm.INode;
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20 | import org.openstreetmap.josm.data.osm.IRelation;
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21 | import org.openstreetmap.josm.data.osm.IWay;
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22 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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23 | import org.openstreetmap.josm.data.osm.Relation;
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24 | import org.openstreetmap.josm.data.osm.RelationToChildReference;
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25 | import org.openstreetmap.josm.gui.ConditionalOptionPaneUtil;
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26 | import org.openstreetmap.josm.gui.MainApplication;
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27 | import org.openstreetmap.josm.gui.MapFrame;
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28 | import org.openstreetmap.josm.gui.dialogs.DeleteFromRelationConfirmationDialog;
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29 | import org.openstreetmap.josm.gui.util.GuiHelper;
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30 | import org.openstreetmap.josm.gui.widgets.JMultilineLabel;
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31 | import org.openstreetmap.josm.tools.Pair;
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32 | import org.openstreetmap.josm.tools.Shortcut;
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33 |
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34 | /**
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35 | * Action that deletes selected objects.
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36 | * @since 770
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37 | */
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38 | public final class DeleteAction extends JosmAction {
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39 |
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40 | /**
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41 | * The default {@link DeletionCallback} for {@code DeleteCommand}.
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42 | * @since 12760
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43 | */
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44 | public static final DeletionCallback defaultDeletionCallback = new DeletionCallback() {
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45 | @Override
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46 | public boolean checkAndConfirmOutlyingDelete(Collection<? extends OsmPrimitive> primitives,
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47 | Collection<? extends OsmPrimitive> ignore) {
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48 | return DeleteAction.checkAndConfirmOutlyingDelete(primitives, ignore);
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49 | }
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50 |
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51 | @Override
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52 | public boolean confirmRelationDeletion(Collection<Relation> relations) {
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53 | return DeleteAction.confirmRelationDeletion(relations);
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54 | }
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55 |
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56 | @Override
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57 | public boolean confirmDeletionFromRelation(Collection<RelationToChildReference> references) {
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58 | return this.confirmDeletionFromRelation(references, Collections.emptyList());
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59 | }
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60 |
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61 | @Override
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62 | public boolean confirmDeletionFromRelation(Collection<RelationToChildReference> references,
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63 | Collection<Pair<Relation, Boolean>> parentsToDelete) {
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64 | DeleteFromRelationConfirmationDialog dialog = DeleteFromRelationConfirmationDialog.getInstance();
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65 | dialog.getModel().populate(references);
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66 | dialog.getDeletedRelationsModel().populate(parentsToDelete);
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67 | dialog.setVisible(true);
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68 | return !dialog.isCanceled();
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69 | }
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70 | };
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71 |
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72 | /**
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73 | * Constructs a new {@code DeleteAction}.
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74 | */
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75 | public DeleteAction() {
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76 | super(tr("Delete"), "dialogs/delete", tr("Delete selected objects."),
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77 | Shortcut.registerShortcut("system:delete", tr("Edit: {0}", tr("Delete")), KeyEvent.VK_DELETE, Shortcut.DIRECT), true);
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78 | setHelpId(ht("/Action/Delete"));
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79 | }
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80 |
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81 | @Override
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82 | public void actionPerformed(ActionEvent e) {
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83 | MapFrame map = MainApplication.getMap();
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84 | if (!isEnabled() || !map.mapView.isActiveLayerVisible())
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85 | return;
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86 | map.mapModeDelete.doActionPerformed(e);
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87 | }
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88 |
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89 | @Override
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90 | protected void updateEnabledState() {
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91 | updateEnabledStateOnCurrentSelection();
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92 | }
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93 |
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94 | @Override
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95 | protected void updateEnabledState(Collection<? extends OsmPrimitive> selection) {
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96 | updateEnabledStateOnModifiableSelection(selection);
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97 | }
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98 |
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99 | /**
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100 | * Check whether user is about to delete data outside of the download area.
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101 | * Request confirmation if he is.
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102 | * @param primitives the primitives to operate on
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103 | * @param ignore {@code null} or a primitive to be ignored
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104 | * @return true, if operating on outlying primitives is OK; false, otherwise
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105 | * @since 12749 (moved from DeleteCommand)
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106 | */
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107 | public static boolean checkAndConfirmOutlyingDelete(Collection<? extends OsmPrimitive> primitives,
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108 | Collection<? extends OsmPrimitive> ignore) {
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109 | final boolean nodes = primitives.stream().anyMatch(INode.class::isInstance);
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110 | final boolean ways = primitives.stream().anyMatch(IWay.class::isInstance);
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111 | final boolean relations = primitives.stream().anyMatch(IRelation.class::isInstance);
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112 | final String type;
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113 | if (nodes && !ways && !relations) {
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114 | type = tr("You are about to delete nodes which can have other referrers not yet downloaded.");
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115 | } else if (!nodes && ways && !relations) {
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116 | type = tr("You are about to delete ways which can have other referrers not yet downloaded.");
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117 | } else if (!nodes && !ways && relations) {
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118 | type = tr("You are about to delete relations which can have other referrers not yet downloaded.");
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119 | } else {
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120 | // OK. We have multiple types being deleted.
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121 | type = tr("You are about to delete primitives which can have other referrers not yet downloaded.");
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122 | }
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123 | return Boolean.TRUE.equals(GuiHelper.runInEDTAndWaitAndReturn(() -> checkAndConfirmOutlyingOperation("delete",
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124 | tr("Delete confirmation"),
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125 | tr("{0}"
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126 | + "<br>"
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127 | + "This can cause problems because other objects (that you do not see) might use them."
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128 | + "<br>"
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129 | + "Do you really want to delete?", type),
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130 | tr("You are about to delete incomplete objects."
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131 | + "<br>"
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132 | + "This will cause problems because you don''t see the real object."
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133 | + "<br>" + "Do you really want to delete?"),
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134 | primitives, ignore)));
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135 | }
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136 |
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137 | /**
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138 | * Confirm before deleting a relation, as it is a common newbie error.
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139 | * @param relations relation to check for deletion
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140 | * @return {@code true} if user confirms the deletion
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141 | * @since 12760
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142 | */
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143 | public static boolean confirmRelationDeletion(Collection<Relation> relations) {
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144 | if (relations.stream().allMatch(Relation::isNew)) {
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145 | return true;
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146 | }
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147 | JPanel msg = new JPanel(new GridBagLayout());
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148 | msg.add(new JMultilineLabel("<html>" + trn(
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149 | "You are about to delete {0} relation: {1}"
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150 | + "<br/>"
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151 | + "This step is rarely necessary and cannot be undone easily after being uploaded to the server."
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152 | + "<br/>"
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153 | + "Do you really want to delete?",
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154 | "You are about to delete {0} relations: {1}"
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155 | + "<br/>"
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156 | + "This step is rarely necessary and cannot be undone easily after being uploaded to the server."
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157 | + "<br/>"
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158 | + "Do you really want to delete?",
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159 | relations.size(), relations.size(), DefaultNameFormatter.getInstance().formatAsHtmlUnorderedList(relations, 20))
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160 | + "</html>"));
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161 | return ConditionalOptionPaneUtil.showConfirmationDialog(
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162 | "delete_relations",
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163 | MainApplication.getMainFrame(),
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164 | msg,
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165 | tr("Delete relation?"),
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166 | JOptionPane.YES_NO_OPTION,
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167 | JOptionPane.QUESTION_MESSAGE,
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168 | JOptionPane.YES_OPTION);
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169 | }
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170 | }
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