1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.gui.preferences.server;
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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.Font;
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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.Insets;
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10 | import java.awt.event.ActionEvent;
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11 | import java.awt.event.ActionListener;
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12 | import java.awt.event.FocusAdapter;
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13 | import java.awt.event.FocusEvent;
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14 | import java.awt.event.ItemEvent;
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15 | import java.awt.event.ItemListener;
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16 | import java.net.MalformedURLException;
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17 | import java.net.URL;
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18 |
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19 | import javax.swing.AbstractAction;
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20 | import javax.swing.JCheckBox;
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21 | import javax.swing.JComponent;
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22 | import javax.swing.JLabel;
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23 | import javax.swing.JPanel;
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24 | import javax.swing.SwingUtilities;
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25 | import javax.swing.event.DocumentEvent;
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26 | import javax.swing.event.DocumentListener;
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27 | import javax.swing.text.JTextComponent;
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28 |
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29 | import org.openstreetmap.josm.Main;
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30 | import org.openstreetmap.josm.gui.SideButton;
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31 | import org.openstreetmap.josm.gui.help.HelpUtil;
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32 | import org.openstreetmap.josm.gui.widgets.AbstractTextComponentValidator;
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33 | import org.openstreetmap.josm.gui.widgets.JosmTextField;
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34 | import org.openstreetmap.josm.gui.widgets.SelectAllOnFocusGainedDecorator;
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35 | import org.openstreetmap.josm.io.OsmApi;
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36 | import org.openstreetmap.josm.tools.ImageProvider;
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37 | import org.openstreetmap.josm.tools.Utils;
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38 |
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39 | /**
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40 | * Component allowing input os OSM API URL.
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41 | */
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42 | public class OsmApiUrlInputPanel extends JPanel {
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43 |
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44 | /**
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45 | * OSM API URL property key.
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46 | */
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47 | public static final String API_URL_PROP = OsmApiUrlInputPanel.class.getName() + ".apiUrl";
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48 |
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49 | private JLabel lblValid;
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50 | private JLabel lblApiUrl;
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51 | private JosmTextField tfOsmServerUrl;
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52 | private ApiUrlValidator valOsmServerUrl;
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53 | private SideButton btnTest;
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54 | /** indicates whether to use the default OSM URL or not */
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55 | private JCheckBox cbUseDefaultServerUrl;
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56 |
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57 | private ApiUrlPropagator propagator;
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58 |
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59 | protected JComponent buildDefaultServerUrlPanel() {
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60 | cbUseDefaultServerUrl = new JCheckBox(tr("<html>Use the default OSM server URL (<strong>{0}</strong>)</html>", OsmApi.DEFAULT_API_URL));
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61 | cbUseDefaultServerUrl.addItemListener(new UseDefaultServerUrlChangeHandler());
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62 | cbUseDefaultServerUrl.setFont(cbUseDefaultServerUrl.getFont().deriveFont(Font.PLAIN));
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63 | return cbUseDefaultServerUrl;
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64 | }
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65 |
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66 | protected final void build() {
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67 | setLayout(new GridBagLayout());
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68 | GridBagConstraints gc = new GridBagConstraints();
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69 |
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70 | // the checkbox for the default UL
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71 | gc.fill = GridBagConstraints.HORIZONTAL;
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72 | gc.anchor = GridBagConstraints.NORTHWEST;
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73 | gc.weightx = 1.0;
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74 | gc.insets = new Insets(0,0,0,0);
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75 | gc.gridwidth = 4;
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76 | add(buildDefaultServerUrlPanel(), gc);
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77 |
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78 |
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79 | // the input field for the URL
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80 | gc.gridx = 0;
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81 | gc.gridy = 1;
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82 | gc.gridwidth = 1;
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83 | gc.weightx = 0.0;
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84 | gc.insets = new Insets(0,0,0,3);
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85 | add(lblApiUrl = new JLabel(tr("OSM Server URL:")), gc);
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86 |
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87 | gc.gridx = 1;
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88 | gc.weightx = 1.0;
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89 | add(tfOsmServerUrl = new JosmTextField(), gc);
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90 | SelectAllOnFocusGainedDecorator.decorate(tfOsmServerUrl);
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91 | valOsmServerUrl = new ApiUrlValidator(tfOsmServerUrl);
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92 | valOsmServerUrl.validate();
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93 | propagator = new ApiUrlPropagator();
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94 | tfOsmServerUrl.addActionListener(propagator);
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95 | tfOsmServerUrl.addFocusListener(propagator);
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96 |
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97 | gc.gridx = 2;
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98 | gc.weightx = 0.0;
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99 | add(lblValid = new JLabel(), gc);
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100 |
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101 | gc.gridx = 3;
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102 | gc.weightx = 0.0;
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103 | ValidateApiUrlAction actTest = new ValidateApiUrlAction();
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104 | tfOsmServerUrl.getDocument().addDocumentListener(actTest);
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105 | add(btnTest = new SideButton(actTest), gc);
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106 | }
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107 |
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108 | /**
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109 | * Constructs a new {@code OsmApiUrlInputPanel}.
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110 | */
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111 | public OsmApiUrlInputPanel() {
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112 | build();
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113 | HelpUtil.setHelpContext(this, HelpUtil.ht("/Preferences/Connection#ApiUrl"));
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114 | }
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115 |
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116 | /**
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117 | * Initializes the configuration panel with values from the preferences
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118 | */
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119 | public void initFromPreferences() {
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120 | String url = Main.pref.get("osm-server.url", OsmApi.DEFAULT_API_URL);
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121 | if (url.trim().equals(OsmApi.DEFAULT_API_URL)) {
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122 | cbUseDefaultServerUrl.setSelected(true);
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123 | propagator.propagate(OsmApi.DEFAULT_API_URL);
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124 | } else {
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125 | cbUseDefaultServerUrl.setSelected(false);
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126 | tfOsmServerUrl.setText(url);
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127 | propagator.propagate(url);
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128 | }
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129 | }
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130 |
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131 | /**
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132 | * Saves the values to the preferences
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133 | */
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134 | public void saveToPreferences() {
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135 | String oldUrl = Main.pref.get("osm-server.url", OsmApi.DEFAULT_API_URL);
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136 | String hmiUrl = getStrippedApiUrl();
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137 | if (cbUseDefaultServerUrl.isSelected()) {
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138 | Main.pref.put("osm-server.url", null);
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139 | } else if (hmiUrl.equals(OsmApi.DEFAULT_API_URL)) {
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140 | Main.pref.put("osm-server.url", null);
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141 | } else {
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142 | Main.pref.put("osm-server.url", hmiUrl);
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143 | }
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144 | String newUrl = Main.pref.get("osm-server.url", OsmApi.DEFAULT_API_URL);
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145 |
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146 | // When API URL changes, re-initialize API connection so we may adjust
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147 | // server-dependent settings.
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148 | if (!oldUrl.equals(newUrl)) {
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149 | try {
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150 | OsmApi.getOsmApi().initialize(null);
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151 | } catch (Exception x) {
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152 | Main.warn(x);
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153 | }
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154 | }
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155 | }
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156 |
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157 | /**
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158 | * Returns the entered API URL, stripped of leading and trailing white characters.
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159 | * @return the entered API URL, stripped of leading and trailing white characters.
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160 | * May be an empty string if nothing has been entered. In this case, it means the user wants to use {@link OsmApi#DEFAULT_API_URL}.
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161 | * @see Utils#strip(String)
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162 | * @since 6602
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163 | */
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164 | public final String getStrippedApiUrl() {
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165 | return Utils.strip(tfOsmServerUrl.getText());
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166 | }
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167 |
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168 | class ValidateApiUrlAction extends AbstractAction implements DocumentListener {
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169 | private String lastTestedUrl = null;
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170 |
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171 | public ValidateApiUrlAction() {
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172 | putValue(NAME, tr("Validate"));
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173 | putValue(SHORT_DESCRIPTION, tr("Test the API URL"));
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174 | updateEnabledState();
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175 | }
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176 |
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177 | @Override
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178 | public void actionPerformed(ActionEvent arg0) {
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179 | final String url = getStrippedApiUrl();
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180 | final ApiUrlTestTask task = new ApiUrlTestTask(OsmApiUrlInputPanel.this, url);
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181 | Main.worker.submit(task);
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182 | Runnable r = new Runnable() {
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183 | @Override
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184 | public void run() {
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185 | if (task.isCanceled())
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186 | return;
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187 | Runnable r = new Runnable() {
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188 | @Override
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189 | public void run() {
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190 | if (task.isSuccess()) {
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191 | lblValid.setIcon(ImageProvider.get("dialogs", "valid"));
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192 | lblValid.setToolTipText(tr("The API URL is valid."));
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193 | lastTestedUrl = url;
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194 | updateEnabledState();
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195 | } else {
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196 | lblValid.setIcon(ImageProvider.get("warning-small"));
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197 | lblValid.setToolTipText(tr("Validation failed. The API URL seems to be invalid."));
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198 | }
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199 | }
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200 | };
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201 | SwingUtilities.invokeLater(r);
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202 | }
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203 | };
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204 | Main.worker.submit(r);
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205 | }
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206 |
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207 | protected final void updateEnabledState() {
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208 | String url = getStrippedApiUrl();
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209 | boolean enabled = !url.isEmpty() && !url.equals(lastTestedUrl);
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210 | if (enabled) {
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211 | lblValid.setIcon(null);
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212 | }
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213 | setEnabled(enabled);
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214 | }
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215 |
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216 | @Override
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217 | public void changedUpdate(DocumentEvent arg0) {
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218 | updateEnabledState();
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219 | }
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220 |
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221 | @Override
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222 | public void insertUpdate(DocumentEvent arg0) {
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223 | updateEnabledState();
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224 | }
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225 |
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226 | @Override
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227 | public void removeUpdate(DocumentEvent arg0) {
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228 | updateEnabledState();
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229 | }
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230 | }
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231 |
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232 | /**
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233 | * Enables or disables the API URL input.
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234 | * @param enabled {@code true} to enable input, {@code false} otherwise
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235 | */
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236 | public void setApiUrlInputEnabled(boolean enabled) {
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237 | lblApiUrl.setEnabled(enabled);
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238 | tfOsmServerUrl.setEnabled(enabled);
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239 | lblValid.setEnabled(enabled);
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240 | btnTest.setEnabled(enabled);
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241 | }
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242 |
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243 | private static class ApiUrlValidator extends AbstractTextComponentValidator {
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244 | public ApiUrlValidator(JTextComponent tc) {
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245 | super(tc);
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246 | }
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247 |
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248 | @Override
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249 | public boolean isValid() {
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250 | if (getComponent().getText().trim().isEmpty())
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251 | return false;
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252 |
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253 | try {
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254 | new URL(getComponent().getText().trim());
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255 | return true;
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256 | } catch(MalformedURLException e) {
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257 | return false;
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258 | }
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259 | }
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260 |
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261 | @Override
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262 | public void validate() {
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263 | if (getComponent().getText().trim().isEmpty()) {
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264 | feedbackInvalid(tr("OSM API URL must not be empty. Please enter the OSM API URL."));
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265 | return;
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266 | }
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267 | if (!isValid()) {
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268 | feedbackInvalid(tr("The current value is not a valid URL"));
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269 | } else {
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270 | feedbackValid(tr("Please enter the OSM API URL."));
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271 | }
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272 | }
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273 | }
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274 |
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275 | /**
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276 | * Handles changes in the default URL
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277 | */
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278 | class UseDefaultServerUrlChangeHandler implements ItemListener {
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279 | @Override
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280 | public void itemStateChanged(ItemEvent e) {
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281 | switch(e.getStateChange()) {
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282 | case ItemEvent.SELECTED:
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283 | setApiUrlInputEnabled(false);
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284 | propagator.propagate(OsmApi.DEFAULT_API_URL);
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285 | break;
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286 | case ItemEvent.DESELECTED:
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287 | setApiUrlInputEnabled(true);
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288 | valOsmServerUrl.validate();
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289 | tfOsmServerUrl.requestFocusInWindow();
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290 | propagator.propagate();
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291 | break;
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292 | }
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293 | }
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294 | }
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295 |
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296 | class ApiUrlPropagator extends FocusAdapter implements ActionListener {
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297 | public void propagate() {
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298 | propagate(getStrippedApiUrl());
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299 | }
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300 |
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301 | public void propagate(String url) {
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302 | firePropertyChange(API_URL_PROP, null, url);
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303 | }
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304 |
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305 | @Override
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306 | public void actionPerformed(ActionEvent e) {
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307 | propagate();
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308 | }
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309 |
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310 | @Override
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311 | public void focusLost(FocusEvent arg0) {
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312 | propagate();
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313 | }
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314 | }
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315 | }
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