1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.tools;
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3 |
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4 | import java.awt.GraphicsEnvironment;
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5 | import java.awt.Toolkit;
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6 | import java.awt.event.KeyEvent;
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7 | import java.io.BufferedReader;
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8 | import java.io.File;
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9 | import java.io.IOException;
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10 | import java.io.InputStreamReader;
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11 | import java.nio.charset.StandardCharsets;
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12 | import java.security.KeyStore;
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13 | import java.security.KeyStoreException;
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14 | import java.security.NoSuchAlgorithmException;
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15 | import java.security.cert.CertificateException;
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16 | import java.security.cert.X509Certificate;
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17 | import java.text.DateFormat;
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18 | import java.util.Collection;
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19 | import java.util.Collections;
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20 | import java.util.Date;
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21 | import java.util.List;
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22 |
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23 | import org.openstreetmap.josm.data.projection.datum.NTV2Proj4DirGridShiftFileSource;
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24 | import org.openstreetmap.josm.io.CertificateAmendment.NativeCertAmend;
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25 | import org.openstreetmap.josm.spi.preferences.Config;
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26 | import org.openstreetmap.josm.tools.date.DateUtils;
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27 |
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28 | /**
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29 | * This interface allows platform (operating system) dependent code
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30 | * to be bundled into self-contained classes.
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31 | * @since 1023
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32 | */
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33 | public interface PlatformHook {
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34 |
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35 | /**
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36 | * Visitor to construct a PlatformHook from a given {@link Platform} object.
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37 | */
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38 | PlatformVisitor<PlatformHook> CONSTRUCT_FROM_PLATFORM = new PlatformVisitor<PlatformHook>() {
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39 | @Override
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40 | public PlatformHook visitUnixoid() {
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41 | return new PlatformHookUnixoid();
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42 | }
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43 |
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44 | @Override
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45 | public PlatformHook visitWindows() {
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46 | return new PlatformHookWindows();
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47 | }
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48 |
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49 | @Override
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50 | public PlatformHook visitOsx() {
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51 | return new PlatformHookOsx();
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52 | }
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53 | };
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54 |
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55 | /**
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56 | * Get the platform corresponding to this platform hook.
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57 | * @return the platform corresponding to this platform hook
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58 | */
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59 | Platform getPlatform();
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60 |
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61 | /**
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62 | * The preStartupHook will be called extremely early. It is
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63 | * guaranteed to be called before the GUI setup has started.
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64 | *
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65 | * Reason: On OSX we need to inform the Swing libraries
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66 | * that we want to be integrated with the OS before we setup our GUI.
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67 | */
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68 | default void preStartupHook() {
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69 | // Do nothing
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70 | }
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71 |
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72 | /**
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73 | * The afterPrefStartupHook will be called early, but after
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74 | * the preferences have been loaded and basic processing of
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75 | * command line arguments is finished.
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76 | * It is guaranteed to be called before the GUI setup has started.
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77 | */
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78 | default void afterPrefStartupHook() {
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79 | // Do nothing
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80 | }
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81 |
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82 | /**
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83 | * The startupHook will be called early, but after the GUI
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84 | * setup has started.
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85 | *
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86 | * Reason: On OSX we need to register some callbacks with the
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87 | * OS, so we'll receive events from the system menu.
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88 | * @param callback Java expiration callback, providing GUI feedback
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89 | * @since 12270 (signature)
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90 | */
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91 | default void startupHook(JavaExpirationCallback callback) {
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92 | // Do nothing
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93 | }
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94 |
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95 | /**
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96 | * The openURL hook will be used to open an URL in the
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97 | * default web browser.
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98 | * @param url The URL to open
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99 | * @throws IOException if any I/O error occurs
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100 | */
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101 | void openUrl(String url) throws IOException;
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102 |
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103 | /**
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104 | * The initSystemShortcuts hook will be called by the
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105 | * Shortcut class after the modifier groups have been read
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106 | * from the config, but before any shortcuts are read from
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107 | * it or registered from within the application.
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108 | *
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109 | * Please note that you are not allowed to register any
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110 | * shortuts from this hook, but only "systemCuts"!
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111 | *
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112 | * BTW: SystemCuts should be named "system:<whatever>",
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113 | * and it'd be best if sou'd recycle the names already used
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114 | * by the Windows and OSX hooks. Especially the later has
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115 | * really many of them.
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116 | *
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117 | * You should also register any and all shortcuts that the
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118 | * operation system handles itself to block JOSM from trying
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119 | * to use them---as that would just not work. Call setAutomatic
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120 | * on them to prevent the keyboard preferences from allowing the
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121 | * user to change them.
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122 | */
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123 | void initSystemShortcuts();
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124 |
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125 | /**
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126 | * Returns the default LAF to be used on this platform to look almost as a native application.
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127 | * @return The default native LAF for this platform
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128 | */
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129 | String getDefaultStyle();
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130 |
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131 | /**
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132 | * Determines if the platform allows full-screen.
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133 | * @return {@code true} if full screen is allowed, {@code false} otherwise
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134 | */
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135 | default boolean canFullscreen() {
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136 | return !GraphicsEnvironment.isHeadless() &&
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137 | GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().isFullScreenSupported();
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138 | }
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139 |
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140 | /**
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141 | * Renames a file.
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142 | * @param from Source file
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143 | * @param to Target file
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144 | * @return {@code true} if the file has been renamed, {@code false} otherwise
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145 | */
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146 | default boolean rename(File from, File to) {
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147 | return from.renameTo(to);
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148 | }
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149 |
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150 | /**
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151 | * Returns a detailed OS description (at least family + version).
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152 | * @return A detailed OS description.
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153 | * @since 5850
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154 | */
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155 | String getOSDescription();
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156 |
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157 | /**
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158 | * Returns OS build number.
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159 | * @return OS build number.
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160 | * @since 12217
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161 | */
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162 | default String getOSBuildNumber() {
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163 | return "";
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164 | }
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165 |
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166 | /**
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167 | * Setup system keystore to add JOSM HTTPS certificate (for remote control).
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168 | * @param entryAlias The entry alias to use
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169 | * @param trustedCert the JOSM certificate for localhost
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170 | * @return {@code true} if something has changed as a result of the call (certificate installation, etc.)
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171 | * @throws KeyStoreException in case of error
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172 | * @throws IOException in case of error
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173 | * @throws CertificateException in case of error
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174 | * @throws NoSuchAlgorithmException in case of error
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175 | * @since 7343
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176 | */
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177 | default boolean setupHttpsCertificate(String entryAlias, KeyStore.TrustedCertificateEntry trustedCert)
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178 | throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException {
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179 | // TODO setup HTTPS certificate on Unix and OS X systems
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180 | return false;
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181 | }
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182 |
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183 | /**
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184 | * Returns the {@code X509Certificate} matching the given certificate amendment information.
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185 | * @param certAmend certificate amendment
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186 | * @return the {@code X509Certificate} matching the given certificate amendment information, or {@code null}
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187 | * @throws KeyStoreException in case of error
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188 | * @throws IOException in case of error
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189 | * @throws CertificateException in case of error
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190 | * @throws NoSuchAlgorithmException in case of error
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191 | * @since 13450
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192 | */
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193 | default X509Certificate getX509Certificate(NativeCertAmend certAmend)
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194 | throws KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException {
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195 | return null;
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196 | }
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197 |
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198 | /**
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199 | * Executes a native command and returns the first line of standard output.
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200 | * @param command array containing the command to call and its arguments.
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201 | * @return first stripped line of standard output
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202 | * @throws IOException if an I/O error occurs
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203 | * @since 12217
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204 | */
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205 | default String exec(String... command) throws IOException {
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206 | Process p = Runtime.getRuntime().exec(command);
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207 | try (BufferedReader input = new BufferedReader(new InputStreamReader(p.getInputStream(), StandardCharsets.UTF_8))) {
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208 | return Utils.strip(input.readLine());
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209 | }
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210 | }
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211 |
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212 | /**
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213 | * Returns the platform-dependent default cache directory.
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214 | * @return the platform-dependent default cache directory
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215 | * @since 7829
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216 | */
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217 | File getDefaultCacheDirectory();
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218 |
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219 | /**
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220 | * Returns the platform-dependent default preferences directory.
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221 | * @return the platform-dependent default preferences directory
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222 | * @since 7831
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223 | */
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224 | File getDefaultPrefDirectory();
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225 |
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226 | /**
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227 | * Returns the platform-dependent default user data directory.
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228 | * @return the platform-dependent default user data directory
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229 | * @since 7834
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230 | */
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231 | File getDefaultUserDataDirectory();
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232 |
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233 | /**
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234 | * Returns the list of platform-dependent default datum shifting directories for the PROJ.4 library.
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235 | * @return the list of platform-dependent default datum shifting directories for the PROJ.4 library
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236 | * @since 11642
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237 | */
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238 | default List<File> getDefaultProj4NadshiftDirectories() {
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239 | return getPlatform().accept(NTV2Proj4DirGridShiftFileSource.getInstance());
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240 | }
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241 |
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242 | /**
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243 | * Determines if the JVM is OpenJDK-based.
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244 | * @return {@code true} if {@code java.home} contains "openjdk", {@code false} otherwise
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245 | * @since 12219
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246 | */
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247 | default boolean isOpenJDK() {
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248 | String javaHome = Utils.getSystemProperty("java.home");
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249 | return javaHome != null && javaHome.contains("openjdk");
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250 | }
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251 |
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252 | /**
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253 | * Returns extended modifier key used as the appropriate accelerator key for menu shortcuts.
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254 | * It is advised everywhere to use {@link Toolkit#getMenuShortcutKeyMask()} to get the cross-platform modifier, but:
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255 | * <ul>
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256 | * <li>it returns KeyEvent.CTRL_MASK instead of KeyEvent.CTRL_DOWN_MASK. We used the extended
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257 | * modifier for years, and Oracle recommends to use it instead, so it's best to keep it</li>
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258 | * <li>the method throws a HeadlessException ! So we would need to handle it for unit tests anyway</li>
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259 | * </ul>
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260 | * @return extended modifier key used as the appropriate accelerator key for menu shortcuts
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261 | * @since 12748 (as a replacement to {@code GuiHelper.getMenuShortcutKeyMaskEx()})
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262 | */
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263 | default int getMenuShortcutKeyMaskEx() {
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264 | // To remove when switching to Java 10+, and use Toolkit.getMenuShortcutKeyMaskEx instead
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265 | return KeyEvent.CTRL_DOWN_MASK;
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266 | }
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267 |
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268 | /**
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269 | * Called when an outdated version of Java is detected at startup.
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270 | * @since 12270
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271 | */
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272 | @FunctionalInterface
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273 | interface JavaExpirationCallback {
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274 | /**
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275 | * Asks user to update its version of Java.
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276 | * @param updVersion target update version
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277 | * @param url download URL
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278 | * @param major true for a migration towards a major version of Java (8:9), false otherwise
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279 | * @param eolDate the EOL/expiration date
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280 | */
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281 | void askUpdateJava(String updVersion, String url, String eolDate, boolean major);
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282 | }
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283 |
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284 | /**
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285 | * Checks if the running version of Java has expired, proposes to user to update it if needed.
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286 | * @param callback Java expiration callback
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287 | * @since 12270 (signature)
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288 | * @since 12219
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289 | */
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290 | default void checkExpiredJava(JavaExpirationCallback callback) {
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291 | Date expiration = Utils.getJavaExpirationDate();
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292 | if (expiration != null && expiration.before(new Date())) {
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293 | String version = Utils.getJavaLatestVersion();
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294 | callback.askUpdateJava(version != null ? version : "latest",
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295 | Config.getPref().get("java.update.url", "https://www.java.com/download"),
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296 | DateUtils.getDateFormat(DateFormat.MEDIUM).format(expiration), false);
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297 | }
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298 | }
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299 |
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300 | /**
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301 | * Called when interfacing with native OS functions. Currently only used with macOS.
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302 | * The callback must perform all GUI-related tasks associated to an OS request.
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303 | * The non-GUI, platform-specific tasks, are usually performed by the {@code PlatformHook}.
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304 | * @since 12695
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305 | */
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306 | interface NativeOsCallback {
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307 | /**
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308 | * macOS: Called when JOSM is asked to open a list of files.
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309 | * @param files list of files to open
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310 | */
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311 | void openFiles(List<File> files);
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312 |
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313 | /**
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314 | * macOS: Invoked when JOSM is asked to quit.
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315 | * @return {@code true} if JOSM has been closed, {@code false} if the user has cancelled the operation.
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316 | */
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317 | boolean handleQuitRequest();
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318 |
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319 | /**
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320 | * macOS: Called when JOSM is asked to show it's about dialog.
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321 | */
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322 | void handleAbout();
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323 |
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324 | /**
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325 | * macOS: Called when JOSM is asked to show it's preferences UI.
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326 | */
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327 | void handlePreferences();
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328 | }
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329 |
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330 | /**
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331 | * Registers the native OS callback. Currently only needed for macOS.
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332 | * @param callback the native OS callback
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333 | * @since 12695
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334 | */
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335 | default void setNativeOsCallback(NativeOsCallback callback) {
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336 | // To be implemented if needed
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337 | }
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338 |
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339 | /**
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340 | * Resolves a file link to its destination file.
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341 | * @param file file (link or regular file)
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342 | * @return destination file in case of a file link, file if regular
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343 | * @since 13691
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344 | */
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345 | default File resolveFileLink(File file) {
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346 | // Override if needed
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347 | return file;
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348 | }
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349 |
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350 | /**
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351 | * Returns a set of possible platform specific directories where resources could be stored.
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352 | * @return A set of possible platform specific directories where resources could be stored.
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353 | * @since 14144
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354 | */
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355 | default Collection<String> getPossiblePreferenceDirs() {
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356 | return Collections.emptyList();
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357 | }
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358 | }
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