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.gui.help.HelpUtil.ht;
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5 | import static org.openstreetmap.josm.tools.I18n.tr;
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6 |
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7 | import java.awt.GridBagConstraints;
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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.ArrayList;
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12 | import java.util.Collections;
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13 | import java.util.LinkedList;
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14 | import java.util.List;
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15 | import java.util.concurrent.Future;
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16 |
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17 | import javax.swing.JCheckBox;
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18 | import javax.swing.JLabel;
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19 | import javax.swing.JOptionPane;
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20 | import javax.swing.JPanel;
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21 | import javax.swing.SwingUtilities;
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22 |
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23 | import org.openstreetmap.josm.Main;
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24 | import org.openstreetmap.josm.actions.downloadtasks.DownloadGpsTask;
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25 | import org.openstreetmap.josm.actions.downloadtasks.DownloadOsmChangeTask;
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26 | import org.openstreetmap.josm.actions.downloadtasks.DownloadOsmTask;
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27 | import org.openstreetmap.josm.actions.downloadtasks.DownloadOsmUrlTask;
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28 | import org.openstreetmap.josm.actions.downloadtasks.DownloadTask;
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29 | import org.openstreetmap.josm.actions.downloadtasks.PostDownloadHandler;
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30 | import org.openstreetmap.josm.gui.ExtendedDialog;
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31 | import org.openstreetmap.josm.gui.progress.PleaseWaitProgressMonitor;
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32 | import org.openstreetmap.josm.gui.widgets.HistoryComboBox;
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33 | import org.openstreetmap.josm.tools.Shortcut;
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34 |
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35 | /**
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36 | * Open an URL input dialog and load data from the given URL.
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37 | *
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38 | * @author imi
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39 | */
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40 | public class OpenLocationAction extends JosmAction {
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41 |
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42 | protected final List<Class<? extends DownloadTask>> downloadTasks;
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43 |
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44 | /**
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45 | * Create an open action. The name is "Open a file".
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46 | */
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47 | public OpenLocationAction() {
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48 | /* I18N: Command to download a specific location/URL */
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49 | super(tr("Open Location..."), "openlocation", tr("Open an URL."),
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50 | Shortcut.registerShortcut("system:open_location", tr("File: {0}", tr("Open Location...")), KeyEvent.VK_L, Shortcut.CTRL), true);
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51 | putValue("help", ht("/Action/OpenLocation"));
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52 | this.downloadTasks = new ArrayList<Class<? extends DownloadTask>>();
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53 | addDownloadTaskClass(DownloadOsmTask.class);
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54 | addDownloadTaskClass(DownloadGpsTask.class);
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55 | addDownloadTaskClass(DownloadOsmChangeTask.class);
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56 | addDownloadTaskClass(DownloadOsmUrlTask.class);
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57 | }
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58 |
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59 | /**
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60 | * Restore the current history from the preferences
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61 | *
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62 | * @param cbHistory
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63 | */
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64 | protected void restoreUploadAddressHistory(HistoryComboBox cbHistory) {
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65 | List<String> cmtHistory = new LinkedList<String>(Main.pref.getCollection(getClass().getName() + ".uploadAddressHistory", new LinkedList<String>()));
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66 | // we have to reverse the history, because ComboBoxHistory will reverse it again
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67 | // in addElement()
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68 | //
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69 | Collections.reverse(cmtHistory);
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70 | cbHistory.setPossibleItems(cmtHistory);
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71 | }
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72 |
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73 | /**
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74 | * Remind the current history in the preferences
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75 | * @param cbHistory
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76 | */
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77 | protected void remindUploadAddressHistory(HistoryComboBox cbHistory) {
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78 | cbHistory.addCurrentItemToHistory();
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79 | Main.pref.putCollection(getClass().getName() + ".uploadAddressHistory", cbHistory.getHistory());
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80 | }
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81 |
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82 | public void actionPerformed(ActionEvent e) {
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83 |
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84 | JCheckBox layer = new JCheckBox(tr("Separate Layer"));
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85 | layer.setToolTipText(tr("Select if the data should be downloaded into a new layer"));
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86 | layer.setSelected(Main.pref.getBoolean("download.newlayer"));
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87 | JPanel all = new JPanel(new GridBagLayout());
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88 | GridBagConstraints gc = new GridBagConstraints();
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89 | gc.fill = GridBagConstraints.HORIZONTAL;
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90 | gc.weightx = 1.0;
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91 | gc.anchor = GridBagConstraints.FIRST_LINE_START;
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92 | all.add(new JLabel(tr("Enter URL to download:")), gc);
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93 | HistoryComboBox uploadAddresses = new HistoryComboBox();
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94 | uploadAddresses.setToolTipText(tr("Enter an URL from where data should be downloaded"));
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95 | restoreUploadAddressHistory(uploadAddresses);
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96 | gc.gridy = 1;
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97 | all.add(uploadAddresses, gc);
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98 | gc.gridy = 2;
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99 | gc.fill = GridBagConstraints.BOTH;
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100 | gc.weighty = 1.0;
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101 | all.add(layer, gc);
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102 | ExtendedDialog dialog = new ExtendedDialog(Main.parent,
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103 | tr("Download Location"),
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104 | new String[] {tr("Download URL"), tr("Cancel")}
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105 | );
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106 | dialog.setContent(all, false /* don't embedded content in JScrollpane */);
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107 | dialog.setButtonIcons(new String[] {"download.png", "cancel.png"});
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108 | dialog.setToolTipTexts(new String[] {
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109 | tr("Start downloading data"),
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110 | tr("Close dialog and cancel downloading")
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111 | });
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112 | dialog.configureContextsensitiveHelp("/Action/OpenLocation", true /* show help button */);
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113 | dialog.showDialog();
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114 | if (dialog.getValue() != 1) return;
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115 | remindUploadAddressHistory(uploadAddresses);
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116 | openUrl(layer.isSelected(), uploadAddresses.getText());
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117 | }
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118 |
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119 | /**
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120 | * Open the given URL.
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121 | */
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122 | public void openUrl(boolean new_layer, final String url) {
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123 | PleaseWaitProgressMonitor monitor = new PleaseWaitProgressMonitor(tr("Download Data"));
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124 | DownloadTask task = null;
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125 | Future<?> future = null;
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126 | for (int i = 0; future == null && i < downloadTasks.size(); i++) {
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127 | Class<? extends DownloadTask> taskClass = downloadTasks.get(i);
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128 | if (taskClass != null) {
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129 | try {
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130 | task = taskClass.getConstructor().newInstance();
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131 | if (task.acceptsUrl(url)) {
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132 | future = task.loadUrl(new_layer, url, monitor);
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133 | }
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134 | } catch (Exception e) {
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135 | e.printStackTrace();
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136 | }
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137 | }
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138 | }
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139 | if (future != null) {
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140 | Main.worker.submit(new PostDownloadHandler(task, future));
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141 | } else {
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142 | SwingUtilities.invokeLater(new Runnable() {
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143 | public void run() {
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144 | JOptionPane.showMessageDialog(Main.parent, tr(
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145 | "<html>Cannot open URL ''{0}'' because no suitable download task is available.</html>",
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146 | url), tr("Download Location"), JOptionPane.ERROR_MESSAGE);
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147 | }
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148 | });
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149 | }
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150 | }
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151 |
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152 | public boolean addDownloadTaskClass(Class<? extends DownloadTask> taskClass) {
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153 | return this.downloadTasks.add(taskClass);
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154 | }
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155 | }
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