1 /*
2 * Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #import "CDataTransferer.h"
27 #include "sun_lwawt_macosx_CDataTransferer.h"
28
29 #import "JNIUtilities.h"
30
31 // ***** NOTE ***** This dictionary corresponds to the static array predefinedClipboardNames
32 // in CDataTransferer.java.
33 NSMutableDictionary *sStandardMappings = nil;
34
35 NSMutableDictionary *getMappingTable() {
36 if (sStandardMappings == nil) {
37 sStandardMappings = [[NSMutableDictionary alloc] init];
38 [sStandardMappings setObject:NSStringPboardType
39 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_STRING]];
40 [sStandardMappings setObject:NSFilenamesPboardType
41 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_FILE]];
42 [sStandardMappings setObject:NSTIFFPboardType
43 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_TIFF]];
44 [sStandardMappings setObject:NSRTFPboardType
45 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_RICH_TEXT]];
46 [sStandardMappings setObject:NSHTMLPboardType
47 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_HTML]];
48 [sStandardMappings setObject:NSPDFPboardType
49 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_PDF]];
50 [sStandardMappings setObject:NSURLPboardType
51 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_URL]];
52 [sStandardMappings setObject:NSPasteboardTypePNG
53 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_PNG]];
54 [sStandardMappings setObject:(NSString*)kUTTypeJPEG
55 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_JPEG]];
56 [sStandardMappings setObject:NSPICTPboardType
57 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_XPICT]];
58 }
59 return sStandardMappings;
60 }
61
62 /*
63 * Convert from a standard NSPasteboard data type to an index in our mapping table.
64 */
65 jlong indexForFormat(NSString *format) {
66 jlong returnValue = -1;
67
68 NSMutableDictionary *mappingTable = getMappingTable();
69 NSArray *matchingKeys = [mappingTable allKeysForObject:format];
70
71 // There should only be one matching key here...
72 if ([matchingKeys count] > 0) {
73 NSNumber *formatID = (NSNumber *)[matchingKeys objectAtIndex:0];
74 returnValue = [formatID longValue];
75 }
76
77 // If we don't recognize the format, but it's a Java "custom" format register it
78 if (returnValue == -1 && ([format hasPrefix:@"JAVA_DATAFLAVOR:"]) ) {
79 returnValue = registerFormatWithPasteboard(format);
80 }
81
82 return returnValue;
83 }
84
85 /*
86 * Inverse of above -- given a long int index, get the matching data format NSString.
87 */
88 NSString *formatForIndex(jlong inFormatCode) {
89 return [getMappingTable() objectForKey:[NSNumber numberWithLong:inFormatCode]];
90 }
91
92 jlong registerFormatWithPasteboard(NSString *format) {
93 NSMutableDictionary *mappingTable = getMappingTable();
94 NSUInteger nextID = [mappingTable count] + 1;
95 [mappingTable setObject:format forKey:[NSNumber numberWithLong:nextID]];
96 return nextID;
97 }
98
99
100 /*
101 * Class: sun_lwawt_macosx_CDataTransferer
102 * Method: registerFormatWithPasteboard
103 * Signature: (Ljava/lang/String;)J
104 */
105 JNIEXPORT jlong JNICALL Java_sun_lwawt_macosx_CDataTransferer_registerFormatWithPasteboard
106 (JNIEnv *env, jobject jthis, jstring newformat)
107 {
108 jlong returnValue = -1;
109 JNI_COCOA_ENTER(env);
110 returnValue = registerFormatWithPasteboard(JavaStringToNSString(env, newformat));
111 JNI_COCOA_EXIT(env);
112 return returnValue;
113 }
114
115 /*
116 * Class: sun_lwawt_macosx_CDataTransferer
117 * Method: formatForIndex
118 * Signature: (J)Ljava/lang/String;
119 */
120 JNIEXPORT jstring JNICALL Java_sun_lwawt_macosx_CDataTransferer_formatForIndex
121 (JNIEnv *env, jobject jthis, jlong index)
122 {
123 jstring returnValue = NULL;
124 JNI_COCOA_ENTER(env);
125 returnValue = NSStringToJavaString(env, formatForIndex(index));
126 JNI_COCOA_EXIT(env);
127 return returnValue;
128 }
129
130 static jobjectArray CreateJavaFilenameArray(JNIEnv *env, NSArray *filenameArray)
131 {
132 NSUInteger filenameCount = [filenameArray count];
133 if (filenameCount == 0) return nil;
134
135 // Get the java.lang.String class object:
136 jclass stringClazz = (*env)->FindClass(env, "java/lang/String");
137 CHECK_NULL_RETURN(stringClazz, nil);
138 jobject jfilenameArray = (*env)->NewObjectArray(env, filenameCount, stringClazz, NULL);
139 if ((*env)->ExceptionOccurred(env)) {
140 (*env)->ExceptionDescribe(env);
141 (*env)->ExceptionClear(env);
142 return nil;
143 }
144 if (!jfilenameArray) {
145 NSLog(@"CDataTransferer_CreateJavaFilenameArray: couldn't create jfilenameArray.");
146 return nil;
147 }
148 (*env)->DeleteLocalRef(env, stringClazz);
149
150 // Iterate through all the filenames:
151 NSUInteger i;
152 for (i = 0; i < filenameCount; i++) {
153 NSMutableString *stringVal = [[NSMutableString alloc] initWithString:[filenameArray objectAtIndex:i]];
154 CFStringNormalize((CFMutableStringRef)stringVal, kCFStringNormalizationFormC);
155 const char* stringBytes = [stringVal UTF8String];
156
157 // Create a Java String:
158 jstring string = (*env)->NewStringUTF(env, stringBytes);
159 if ((*env)->ExceptionOccurred(env)) {
160 (*env)->ExceptionDescribe(env);
161 (*env)->ExceptionClear(env);
162 continue;
163 }
164 if (!string) {
165 NSLog(@"CDataTransferer_CreateJavaFilenameArray: couldn't create jstring[%lu] for [%@].", (unsigned long) i, stringVal);
166 continue;
167 }
168
169 // Set the Java array element with our String:
170 (*env)->SetObjectArrayElement(env, jfilenameArray, i, string);
171 if ((*env)->ExceptionOccurred(env)) {
172 (*env)->ExceptionDescribe(env);
173 (*env)->ExceptionClear(env);
174 continue;
175 }
176
177 // Release local String reference:
178 (*env)->DeleteLocalRef(env, string);
179 }
180
181 return jfilenameArray;
182 }
183
184 /*
185 * Class: sun_lwawt_macosx_CDataTransferer
186 * Method: draqQueryFile
187 * Signature: ([B)[Ljava/lang/String;
188 */
189 JNIEXPORT jobjectArray JNICALL
190 Java_sun_lwawt_macosx_CDataTransferer_nativeDragQueryFile
191 (JNIEnv *env, jclass clazz, jbyteArray jbytearray)
192 {
193 // Decodes a byte array into a set of String filenames.
194 // bytes here is an XML property list containing all of the filenames in the drag.
195 // Parse the XML list into strings and return an array of Java strings matching all of the
196 // files in the list.
197
198 jobjectArray jreturnArray = NULL;
199
200 JNI_COCOA_ENTER(env);
201 // Get byte array elements:
202 jboolean isCopy;
203 jbyte* jbytes = (*env)->GetByteArrayElements(env, jbytearray, &isCopy);
204 if (jbytes == NULL) {
205 return NULL;
206 }
207
208 // Wrap jbytes in an NSData object:
209 jsize jbytesLength = (*env)->GetArrayLength(env, jbytearray);
210 NSData *xmlData = [NSData dataWithBytesNoCopy:jbytes length:jbytesLength freeWhenDone:NO];
211
212 // Create a property list from the Java data:
213 NSString *errString = nil;
214 NSPropertyListFormat plistFormat = 0;
215 id plist = [NSPropertyListSerialization propertyListFromData:xmlData mutabilityOption:NSPropertyListImmutable
216 format:&plistFormat errorDescription:&errString];
217
218 // The property list must be an array of strings:
219 if (plist == nil || [plist isKindOfClass:[NSArray class]] == FALSE) {
220 NSLog(@"CDataTransferer_dragQueryFile: plist not a valid NSArray (error %@):\n%@", errString, plist);
221 (*env)->ReleaseByteArrayElements(env, jbytearray, jbytes, JNI_ABORT);
222 return NULL;
223 }
224
225 // Transfer all string items from the plistArray to filenameArray. This wouldn't be necessary
226 // if we could trust the array to contain all valid elements but this way we'll be sure.
227 NSArray *plistArray = (NSArray *)plist;
228 NSUInteger plistItemCount = [plistArray count];
229 NSMutableArray *filenameArray = [[NSMutableArray alloc] initWithCapacity:plistItemCount];
230
231 NSUInteger i;
232 for (i = 0; i < plistItemCount; i++) {
233 // Filenames must be strings:
234 id idVal = [plistArray objectAtIndex:i];
235 if ([idVal isKindOfClass:[NSString class]] == FALSE) {
236 NSLog(@"CDataTransferer_dragQueryFile: plist[%lu] not an NSString:\n%@", (unsigned long) i, idVal);
237 continue;
238 }
239
240 [filenameArray addObject:idVal];
241 }
242
243 // Convert our array of filenames into a Java array of String filenames:
244 jreturnArray = CreateJavaFilenameArray(env, filenameArray);
245
246 [filenameArray release];
247
248 // We're done with the jbytes (backing the plist/plistArray):
249 (*env)->ReleaseByteArrayElements(env, jbytearray, jbytes, JNI_ABORT);
250 JNI_COCOA_EXIT(env);
251 return jreturnArray;
252 }