1 2 /* 3 * Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. Oracle designates this 9 * particular file as subject to the "Classpath" exception as provided 10 * by Oracle in the LICENSE file that accompanied this code. 11 * 12 * This code is distributed in the hope that it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15 * version 2 for more details (a copy is included in the LICENSE file that 16 * accompanied this code). 17 * 18 * You should have received a copy of the GNU General Public License version 19 * 2 along with this work; if not, write to the Free Software Foundation, 20 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 21 * 22 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 23 * or visit www.oracle.com if you need additional information or have any 24 * questions. 25 */ 26 27 package sun.lwawt.macosx; 28 29 import java.awt.*; 30 import java.awt.image.*; 31 32 import java.io.*; 33 import java.net.URI; 34 import java.net.URISyntaxException; 35 import java.net.URL; 36 import java.text.Normalizer; 37 import java.text.Normalizer.Form; 38 import java.util.*; 39 40 import java.awt.datatransfer.*; 41 import sun.awt.datatransfer.*; 42 43 public class CDataTransferer extends DataTransferer { 44 private static final Map<String, Long> predefinedClipboardNameMap; 45 private static final Map<Long, String> predefinedClipboardFormatMap; 46 47 // See SystemFlavorMap, or the flavormap.properties file: 48 // We should define a few more types in flavormap.properties, it's rather slim now. 49 private static final String[] predefinedClipboardNames = { 50 "", 51 "STRING", 52 "FILE_NAME", 53 "TIFF", 54 "RICH_TEXT", 55 "HTML", 56 "PDF", 57 "URL", 58 "PNG", 59 "JFIF", 60 "XPICT" 61 }; 62 63 static { 64 Map<String, Long> nameMap = new HashMap<>(predefinedClipboardNames.length, 1.0f); 65 Map<Long, String> formatMap = new HashMap<>(predefinedClipboardNames.length, 1.0f); 66 for (int i = 1; i < predefinedClipboardNames.length; i++) { 67 nameMap.put(predefinedClipboardNames[i], (long) i); 68 formatMap.put((long) i, predefinedClipboardNames[i]); 69 } 70 predefinedClipboardNameMap = Collections.synchronizedMap(nameMap); 71 predefinedClipboardFormatMap = Collections.synchronizedMap(formatMap); 72 } 73 74 public static final int CF_UNSUPPORTED = 0; 75 public static final int CF_STRING = 1; 76 public static final int CF_FILE = 2; 77 public static final int CF_TIFF = 3; 78 public static final int CF_RICH_TEXT = 4; 79 public static final int CF_HTML = 5; 80 public static final int CF_PDF = 6; 81 public static final int CF_URL = 7; 82 public static final int CF_PNG = 8; 83 public static final int CF_JPEG = 9; 84 public static final int CF_XPICT = 10; 85 86 private CDataTransferer() {} 87 88 private static CDataTransferer fTransferer; 89 90 static synchronized CDataTransferer getInstanceImpl() { 91 if (fTransferer == null) { 92 fTransferer = new CDataTransferer(); 93 } 94 95 return fTransferer; 96 } 97 98 @Override 99 public String getDefaultUnicodeEncoding() { 100 return "utf-16le"; 101 } 102 103 @Override 104 public boolean isLocaleDependentTextFormat(long format) { 105 return format == CF_STRING; 106 } 107 108 @Override 109 public boolean isFileFormat(long format) { 110 return format == CF_FILE; 111 } 112 113 @Override 114 public boolean isImageFormat(long format) { 115 int ifmt = (int)format; 116 switch(ifmt) { 117 case CF_TIFF: 118 case CF_PDF: 119 case CF_PNG: 120 case CF_JPEG: 121 return true; 122 default: 123 return false; 124 } 125 } 126 127 @Override 128 public Object translateBytes(byte[] bytes, DataFlavor flavor, 129 long format, Transferable transferable) throws IOException { 130 131 132 if (format == CF_URL && URL.class.equals(flavor.getRepresentationClass())) { 133 String[] strings = dragQueryFile(bytes); 134 if(strings == null || strings.length == 0) { 135 return null; 136 } 137 return new URL(strings[0]); 138 } else if(isUriListFlavor(flavor)) { 139 // dragQueryFile works fine with files and url, 140 // it parses and extracts values from property list. 141 // maxosx always returns property list for 142 // CF_URL and CF_FILE 143 String[] strings = dragQueryFile(bytes); 144 if(strings == null) { 145 return null; 146 } 147 String separator = System.getProperty("line.separator"); 148 StringBuilder sb = new StringBuilder(); 149 if(strings.length > 0) { 150 sb.append(strings[0]); 151 sb.append(separator); 152 for(int i = 1; i < strings.length; i++) { 153 sb.append(strings[i]); 154 sb.append(separator); 155 } 156 } 157 bytes = sb.toString().getBytes(); 158 // now we extracted uri from xml, now we should treat it as 159 // regular string that allows to translate data to target represantation 160 // class by base method 161 format = CF_STRING; 162 } else if (format == CF_STRING) { 163 bytes = Normalizer.normalize(new String(bytes, "UTF8"), Form.NFC).getBytes("UTF8"); 164 } 165 166 return super.translateBytes(bytes, flavor, format, transferable); 167 } 168 169 @Override 170 synchronized protected Long getFormatForNativeAsLong(String str) { 171 Long format = predefinedClipboardNameMap.get(str); 172 173 if (format == null) { 174 if (java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment().isHeadlessInstance()) { 175 // Do not try to access native system for the unknown format 176 return -1L; 177 } 178 format = registerFormatWithPasteboard(str); 179 predefinedClipboardNameMap.put(str, format); 180 predefinedClipboardFormatMap.put(format, str); 181 } 182 183 return format; 184 } 185 186 /* 187 * Adds type to native mapping NSDictionary. 188 */ 189 private native long registerFormatWithPasteboard(String type); 190 191 // Get registered native format string for an index, return null if unknown: 192 private native String formatForIndex(long index); 193 194 @Override 195 protected String getNativeForFormat(long format) { 196 String returnValue = null; 197 198 // The most common case - just index the array of predefined names: 199 if (format >= 0 && format < predefinedClipboardNames.length) { 200 returnValue = predefinedClipboardNames[(int) format]; 201 } else { 202 Long formatObj = format; 203 returnValue = predefinedClipboardFormatMap.get(formatObj); 204 205 // predefinedClipboardFormatMap may not know this format: 206 if (returnValue == null) { 207 returnValue = formatForIndex(format); 208 209 // Native clipboard may not know this format either: 210 if (returnValue != null) { 211 predefinedClipboardNameMap.put(returnValue, formatObj); 212 predefinedClipboardFormatMap.put(formatObj, returnValue); 213 } 214 } 215 } 216 217 if (returnValue == null) { 218 returnValue = predefinedClipboardNames[CF_UNSUPPORTED]; 219 } 220 221 return returnValue; 222 } 223 224 private final ToolkitThreadBlockedHandler handler = new CToolkitThreadBlockedHandler(); 225 226 @Override 227 public ToolkitThreadBlockedHandler getToolkitThreadBlockedHandler() { 228 return handler; 229 } 230 231 @Override 232 protected byte[] imageToPlatformBytes(Image image, long format) { 233 return CImage.getCreator().getPlatformImageBytes(image); 234 } 235 236 private static native String[] nativeDragQueryFile(final byte[] bytes); 237 @Override 238 protected String[] dragQueryFile(final byte[] bytes) { 239 if (bytes == null) return null; 240 if (new String(bytes).startsWith("Unsupported type")) return null; 241 return nativeDragQueryFile(bytes); 242 } 243 244 245 @Override 246 protected Image platformImageBytesToImage(byte[] bytes, long format) throws IOException { 247 return CImage.getCreator().createImageFromPlatformImageBytes(bytes); 248 } 249 250 @Override 251 protected ByteArrayOutputStream convertFileListToBytes(ArrayList<String> fileList) throws IOException { 252 ByteArrayOutputStream bos = new ByteArrayOutputStream(); 253 for (String file : fileList) { 254 byte[] bytes = file.getBytes(); 255 bos.write(bytes, 0, bytes.length); 256 bos.write(0); 257 } 258 return bos; 259 } 260 261 @Override 262 protected boolean isURIListFormat(long format) { 263 String nat = getNativeForFormat(format); 264 if (nat == null) { 265 return false; 266 } 267 try { 268 DataFlavor df = new DataFlavor(nat); 269 if (isUriListFlavor(df)) { 270 return true; 271 } 272 } catch (Exception e) { 273 // Not a MIME format. 274 } 275 return false; 276 } 277 278 private boolean isUriListFlavor(DataFlavor df) { 279 if (df.getPrimaryType().equals("text") && df.getSubType().equals("uri-list")) { 280 return true; 281 } 282 return false; 283 } 284 } 285 286