1 | //License: GPL. Copyright 2007 by Immanuel Scholz and others
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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.tools.I18n.tr;
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5 |
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6 | import java.awt.event.ActionEvent;
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7 | import java.io.File;
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8 | import java.io.IOException;
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9 | import java.util.Collection;
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10 | import java.util.LinkedList;
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11 | import java.util.List;
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12 |
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13 | import javax.swing.JFileChooser;
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14 | import javax.swing.JOptionPane;
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15 | import javax.swing.filechooser.FileFilter;
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16 |
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17 | import org.openstreetmap.josm.Main;
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18 | import org.openstreetmap.josm.data.conflict.ConflictCollection;
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19 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
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20 | import org.openstreetmap.josm.gui.ExtendedDialog;
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21 | import org.openstreetmap.josm.gui.layer.GpxLayer;
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22 | import org.openstreetmap.josm.gui.layer.Layer;
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23 | import org.openstreetmap.josm.gui.layer.OsmDataLayer;
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24 | import org.openstreetmap.josm.io.FileExporter;
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25 | import org.openstreetmap.josm.tools.Shortcut;
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26 |
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27 | public abstract class SaveActionBase extends DiskAccessAction {
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28 | private File file;
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29 |
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30 | public SaveActionBase(String name, String iconName, String tooltip, Shortcut shortcut) {
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31 | super(name, iconName, tooltip, shortcut);
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32 | }
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33 |
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34 | @Override
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35 | public void actionPerformed(ActionEvent e) {
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36 | if (!isEnabled())
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37 | return;
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38 | boolean saved = doSave();
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39 | if (saved) {
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40 | addToFileOpenHistory();
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41 | }
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42 | }
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43 |
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44 | public boolean doSave() {
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45 | Layer layer = null;
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46 | if (Main.isDisplayingMapView() && (Main.map.mapView.getActiveLayer() instanceof OsmDataLayer
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47 | || Main.map.mapView.getActiveLayer() instanceof GpxLayer)) {
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48 | layer = Main.map.mapView.getActiveLayer();
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49 | }
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50 | if (layer == null)
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51 | return false;
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52 | return doSave(layer);
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53 | }
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54 |
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55 | public boolean doSave(Layer layer) {
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56 | if(!checkSaveConditions(layer))
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57 | return false;
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58 | file = getFile(layer);
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59 | return doInternalSave(layer, file);
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60 | }
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61 |
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62 | public static boolean doSave(Layer layer, File file) {
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63 | if(!checkSaveConditions(layer))
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64 | return false;
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65 | return doInternalSave(layer, file);
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66 | }
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67 |
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68 | private static boolean doInternalSave(Layer layer, File file) {
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69 | if (file == null)
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70 | return false;
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71 |
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72 | try {
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73 | boolean exported = false;
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74 | for (FileExporter exporter : ExtensionFileFilter.exporters) {
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75 | if (exporter.acceptFile(file, layer)) {
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76 | exporter.exportData(file, layer);
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77 | exported = true;
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78 | break;
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79 | }
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80 | }
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81 | if (!exported) {
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82 | JOptionPane.showMessageDialog(Main.parent, tr("No Exporter found! Nothing saved."), tr("Warning"),
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83 | JOptionPane.WARNING_MESSAGE);
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84 | return false;
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85 | }
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86 | layer.setName(file.getName());
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87 | layer.setAssociatedFile(file);
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88 | if (layer instanceof OsmDataLayer) {
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89 | ((OsmDataLayer) layer).onPostSaveToFile();
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90 | }
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91 | Main.parent.repaint();
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92 | } catch (IOException e) {
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93 | e.printStackTrace();
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94 | return false;
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95 | }
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96 | return true;
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97 | }
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98 |
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99 | protected abstract File getFile(Layer layer);
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100 |
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101 | /**
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102 | * Checks whether it is ok to launch a save (whether we have data,
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103 | * there is no conflict etc.)
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104 | * @return <code>true</code>, if it is safe to save.
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105 | */
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106 | public static boolean checkSaveConditions(Layer layer) {
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107 | if (layer instanceof GpxLayer)
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108 | return ((GpxLayer)layer).data != null;
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109 | else if (layer instanceof OsmDataLayer) {
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110 | if (isDataSetEmpty((OsmDataLayer)layer)) {
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111 | ExtendedDialog dialog = new ExtendedDialog(
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112 | Main.parent,
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113 | tr("Empty document"),
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114 | new String[] {tr("Save anyway"), tr("Cancel")}
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115 | );
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116 | dialog.setContent(tr("The document contains no data."));
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117 | dialog.setButtonIcons(new String[] {"save.png", "cancel.png"});
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118 | dialog.showDialog();
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119 | if (dialog.getValue() != 1) return false;
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120 | }
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121 |
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122 | ConflictCollection conflicts = ((OsmDataLayer)layer).getConflicts();
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123 | if (conflicts != null && !conflicts.isEmpty()) {
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124 | ExtendedDialog dialog = new ExtendedDialog(
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125 | Main.parent,
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126 | /* I18N: Display title of the window showing conflicts */
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127 | tr("Conflicts"),
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128 | new String[] {tr("Reject Conflicts and Save"), tr("Cancel")}
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129 | );
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130 | dialog.setContent(tr("There are unresolved conflicts. Conflicts will not be saved and handled as if you rejected all. Continue?"));
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131 | dialog.setButtonIcons(new String[] {"save.png", "cancel.png"});
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132 | dialog.showDialog();
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133 | if (dialog.getValue() != 1) return false;
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134 | }
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135 | return true;
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136 | }
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137 | return false;
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138 | }
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139 |
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140 | public static File openFileDialog(Layer layer) {
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141 | if (layer instanceof OsmDataLayer)
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142 | return createAndOpenSaveFileChooser(tr("Save OSM file"), "osm");
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143 | else if (layer instanceof GpxLayer)
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144 | return createAndOpenSaveFileChooser(tr("Save GPX file"), "gpx");
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145 | return createAndOpenSaveFileChooser(tr("Save Layer"), "lay");
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146 | }
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147 |
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148 | /**
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149 | * Check the data set if it would be empty on save. It is empty, if it contains
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150 | * no objects (after all objects that are created and deleted without being
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151 | * transferred to the server have been removed).
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152 | *
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153 | * @return <code>true</code>, if a save result in an empty data set.
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154 | */
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155 | private static boolean isDataSetEmpty(OsmDataLayer layer) {
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156 | for (OsmPrimitive osm : layer.data.allNonDeletedPrimitives())
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157 | if (!osm.isDeleted() || !osm.isNewOrUndeleted())
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158 | return false;
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159 | return true;
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160 | }
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161 |
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162 | /**
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163 | * Refreshes the enabled state
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164 | *
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165 | */
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166 | @Override
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167 | protected void updateEnabledState() {
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168 | if (Main.applet) {
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169 | setEnabled(false);
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170 | return;
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171 | }
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172 | boolean check = Main.map != null
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173 | && Main.map.mapView !=null
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174 | && Main.map.mapView.getActiveLayer() != null;
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175 | if(!check) {
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176 | setEnabled(false);
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177 | return;
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178 | }
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179 | Layer layer = Main.map.mapView.getActiveLayer();
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180 | setEnabled(layer instanceof OsmDataLayer || layer instanceof GpxLayer);
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181 | }
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182 |
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183 | public static File createAndOpenSaveFileChooser(String title, String extension) {
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184 | String curDir = Main.pref.get("lastDirectory");
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185 | if (curDir.equals("")) {
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186 | curDir = ".";
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187 | }
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188 | JFileChooser fc = new JFileChooser(new File(curDir));
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189 | if (title != null) {
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190 | fc.setDialogTitle(title);
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191 | }
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192 |
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193 | fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
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194 | fc.setMultiSelectionEnabled(false);
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195 | fc.setAcceptAllFileFilterUsed(false);
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196 | ExtensionFileFilter.applyChoosableExportFileFilters(fc, extension);
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197 | int answer = fc.showSaveDialog(Main.parent);
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198 | if (answer != JFileChooser.APPROVE_OPTION)
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199 | return null;
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200 |
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201 | if (!fc.getCurrentDirectory().getAbsolutePath().equals(curDir)) {
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202 | Main.pref.put("lastDirectory", fc.getCurrentDirectory().getAbsolutePath());
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203 | }
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204 |
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205 | File file = fc.getSelectedFile();
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206 | String fn = file.getPath();
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207 | if(fn.indexOf('.') == -1)
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208 | {
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209 | FileFilter ff = fc.getFileFilter();
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210 | if (ff instanceof ExtensionFileFilter) {
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211 | fn += "." + ((ExtensionFileFilter)ff).getDefaultExtension();
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212 | } else if(extension != null) {
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213 | fn += "." + extension;
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214 | }
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215 | file = new File(fn);
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216 | }
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217 | if (!confirmOverwrite(file))
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218 | return null;
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219 | return file;
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220 | }
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221 |
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222 | public static boolean confirmOverwrite(File file) {
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223 | if (file == null || (file.exists())) {
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224 | ExtendedDialog dialog = new ExtendedDialog(
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225 | Main.parent,
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226 | tr("Overwrite"),
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227 | new String[] {tr("Overwrite"), tr("Cancel")}
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228 | );
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229 | dialog.setContent(tr("File exists. Overwrite?"));
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230 | dialog.setButtonIcons(new String[] {"save_as.png", "cancel.png"});
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231 | dialog.showDialog();
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232 | return (dialog.getValue() == 1);
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233 | }
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234 | return true;
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235 | }
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236 |
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237 | protected void addToFileOpenHistory() {
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238 | String filepath;
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239 | try {
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240 | filepath = file.getCanonicalPath();
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241 | } catch (IOException ign) {
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242 | return;
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243 | }
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244 |
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245 | int maxsize = Math.max(0, Main.pref.getInteger("file-open.history.max-size", 15));
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246 | Collection<String> oldHistory = Main.pref.getCollection("file-open.history");
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247 | List<String> history = new LinkedList<String>(oldHistory);
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248 | history.remove(filepath);
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249 | history.add(0, filepath);
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250 | Main.pref.putCollectionBounded("file-open.history", maxsize, history);
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251 | }
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252 | }
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