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 "jni_util.h"
30
31 #import <JavaNativeFoundation/JavaNativeFoundation.h>
32
33
34 // ***** NOTE ***** This dictionary corresponds to the static array predefinedClipboardNames
35 // in CDataTransferer.java.
36 NSMutableDictionary *sStandardMappings = nil;
37
38 NSMutableDictionary *getMappingTable() {
39 if (sStandardMappings == nil) {
40 sStandardMappings = [[NSMutableDictionary alloc] init];
41 [sStandardMappings setObject:NSStringPboardType
42 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_STRING]];
43 [sStandardMappings setObject:NSFilenamesPboardType
44 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_FILE]];
45 [sStandardMappings setObject:NSTIFFPboardType
46 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_TIFF]];
47 [sStandardMappings setObject:NSRTFPboardType
48 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_RICH_TEXT]];
49 [sStandardMappings setObject:NSHTMLPboardType
50 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_HTML]];
51 [sStandardMappings setObject:NSPDFPboardType
52 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_PDF]];
53 [sStandardMappings setObject:NSURLPboardType
54 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_URL]];
55 [sStandardMappings setObject:NSPasteboardTypePNG
56 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_PNG]];
57 [sStandardMappings setObject:(NSString*)kUTTypeJPEG
58 forKey:[NSNumber numberWithLong:sun_lwawt_macosx_CDataTransferer_CF_JPEG]];
59 }
60 return sStandardMappings;
61 }
62
63 /*
64 * Convert from a standard NSPasteboard data type to an index in our mapping table.
65 */
66 jlong indexForFormat(NSString *format) {
67 jlong returnValue = -1;
68
69 NSMutableDictionary *mappingTable = getMappingTable();
70 NSArray *matchingKeys = [mappingTable allKeysForObject:format];
71
72 // There should only be one matching key here...
73 if ([matchingKeys count] > 0) {
74 NSNumber *formatID = (NSNumber *)[matchingKeys objectAtIndex:0];
75 returnValue = [formatID longValue];
76 }
77
78 // If we don't recognize the format, but it's a Java "custom" format register it
79 if (returnValue == -1 && ([format hasPrefix:@"JAVA_DATAFLAVOR:"]) ) {
80 returnValue = registerFormatWithPasteboard(format);
81 }
82
83 return returnValue;
84 }
85
86 /*
87 * Inverse of above -- given a long int index, get the matching data format NSString.
88 */
89 NSString *formatForIndex(jlong inFormatCode) {
90 return [getMappingTable() objectForKey:[NSNumber numberWithLong:inFormatCode]];
91 }
92
93 jlong registerFormatWithPasteboard(NSString *format) {
94 NSMutableDictionary *mappingTable = getMappingTable();
95 NSUInteger nextID = [mappingTable count] + 1;
96 [mappingTable setObject:format forKey:[NSNumber numberWithLong:nextID]];
97 return nextID;
98 }
99
100
101 /*
102 * Class: sun_lwawt_macosx_CDataTransferer
103 * Method: registerFormatWithPasteboard
104 * Signature: (Ljava/lang/String;)J
105 */
106 JNIEXPORT jlong JNICALL Java_sun_lwawt_macosx_CDataTransferer_registerFormatWithPasteboard
107 (JNIEnv *env, jobject jthis, jstring newformat)
108 {
109 jlong returnValue = -1;
110 JNF_COCOA_ENTER(env);
111 returnValue = registerFormatWithPasteboard(JNFJavaToNSString(env, newformat));
112 JNF_COCOA_EXIT(env);
113 return returnValue;
114 }
115
116 /*
117 * Class: sun_lwawt_macosx_CDataTransferer
118 * Method: formatForIndex
119 * Signature: (J)Ljava/lang/String;
120 */
121 JNIEXPORT jstring JNICALL Java_sun_lwawt_macosx_CDataTransferer_formatForIndex
122 (JNIEnv *env, jobject jthis, jlong index)
123 {
124 jstring returnValue = NULL;
125 JNF_COCOA_ENTER(env);
126 returnValue = JNFNSToJavaString(env, formatForIndex(index));
127 JNF_COCOA_EXIT(env);
128 return returnValue;
129 }
130
131 static jobjectArray CreateJavaFilenameArray(JNIEnv *env, NSArray *filenameArray)
132 {
133 NSUInteger filenameCount = [filenameArray count];
134 if (filenameCount == 0) return nil;
135
136 // Get the java.lang.String class object:
137 jclass stringClazz = (*env)->FindClass(env, "java/lang/String");
138 CHECK_NULL_RETURN(stringClazz, nil);
139 jobject jfilenameArray = (*env)->NewObjectArray(env, filenameCount, stringClazz, NULL); // AWT_THREADING Safe (known object)
140 if ((*env)->ExceptionOccurred(env)) {
141 (*env)->ExceptionDescribe(env);
142 (*env)->ExceptionClear(env);
143 return nil;
144 }
145 if (!jfilenameArray) {
146 NSLog(@"CDataTransferer_CreateJavaFilenameArray: couldn't create jfilenameArray.");
147 return nil;
148 }
149 (*env)->DeleteLocalRef(env, stringClazz);
150
151 // Iterate through all the filenames:
152 NSUInteger i;
153 for (i = 0; i < filenameCount; i++) {
154 NSMutableString *stringVal = [[NSMutableString alloc] initWithString:[filenameArray objectAtIndex:i]];
155 CFStringNormalize((CFMutableStringRef)stringVal, kCFStringNormalizationFormC);
156 const char* stringBytes = [stringVal UTF8String];
157
158 // Create a Java String:
159 jstring string = (*env)->NewStringUTF(env, stringBytes);
160 if ((*env)->ExceptionOccurred(env)) {
161 (*env)->ExceptionDescribe(env);
162 (*env)->ExceptionClear(env);
163 continue;
164 }
165 if (!string) {
166 NSLog(@"CDataTransferer_CreateJavaFilenameArray: couldn't create jstring[%lu] for [%@].", (unsigned long) i, stringVal);
167 continue;
168 }
169
170 // Set the Java array element with our String:
171 (*env)->SetObjectArrayElement(env, jfilenameArray, i, string);
172 if ((*env)->ExceptionOccurred(env)) {
173 (*env)->ExceptionDescribe(env);
174 (*env)->ExceptionClear(env);
175 continue;
176 }
177
178 // Release local String reference:
179 (*env)->DeleteLocalRef(env, string);
180 }
181
182 return jfilenameArray;
183 }
184
185 /*
186 * Class: sun_lwawt_macosx_CDataTransferer
187 * Method: draqQueryFile
188 * Signature: ([B)[Ljava/lang/String;
189 */
190 JNIEXPORT jobjectArray JNICALL
191 Java_sun_lwawt_macosx_CDataTransferer_nativeDragQueryFile
192 (JNIEnv *env, jclass clazz, jbyteArray jbytearray)
193 {
194 // Decodes a byte array into a set of String filenames.
195 // bytes here is an XML property list containing all of the filenames in the drag.
196 // Parse the XML list into strings and return an array of Java strings matching all of the
197 // files in the list.
198
199 jobjectArray jreturnArray = NULL;
200
201 JNF_COCOA_ENTER(env);
202 // Get byte array elements:
203 jboolean isCopy;
204 jbyte* jbytes = (*env)->GetByteArrayElements(env, jbytearray, &isCopy);
205 if (jbytes == NULL) {
206 return NULL;
207 }
208
209 // Wrap jbytes in an NSData object:
210 jsize jbytesLength = (*env)->GetArrayLength(env, jbytearray);
211 NSData *xmlData = [NSData dataWithBytesNoCopy:jbytes length:jbytesLength freeWhenDone:NO];
212
213 // Create a property list from the Java data:
214 NSString *errString = nil;
215 NSPropertyListFormat plistFormat = 0;
216 id plist = [NSPropertyListSerialization propertyListFromData:xmlData mutabilityOption:NSPropertyListImmutable
217 format:&plistFormat errorDescription:&errString];
218
219 // The property list must be an array of strings:
220 if (plist == nil || [plist isKindOfClass:[NSArray class]] == FALSE) {
221 NSLog(@"CDataTransferer_dragQueryFile: plist not a valid NSArray (error %@):\n%@", errString, plist);
222 (*env)->ReleaseByteArrayElements(env, jbytearray, jbytes, JNI_ABORT);
223 return NULL;
224 }
225
226 // Transfer all string items from the plistArray to filenameArray. This wouldn't be necessary
227 // if we could trust the array to contain all valid elements but this way we'll be sure.
228 NSArray *plistArray = (NSArray *)plist;
229 NSUInteger plistItemCount = [plistArray count];
230 NSMutableArray *filenameArray = [[NSMutableArray alloc] initWithCapacity:plistItemCount];
231
232 NSUInteger i;
233 for (i = 0; i < plistItemCount; i++) {
234 // Filenames must be strings:
235 id idVal = [plistArray objectAtIndex:i];
236 if ([idVal isKindOfClass:[NSString class]] == FALSE) {
237 NSLog(@"CDataTransferer_dragQueryFile: plist[%lu] not an NSString:\n%@", (unsigned long) i, idVal);
238 continue;
239 }
240
241 [filenameArray addObject:idVal];
242 }
243
244 // Convert our array of filenames into a Java array of String filenames:
245 jreturnArray = CreateJavaFilenameArray(env, filenameArray);
246
247 [filenameArray release];
248
249 // We're done with the jbytes (backing the plist/plistArray):
250 (*env)->ReleaseByteArrayElements(env, jbytearray, jbytes, JNI_ABORT);
251 JNF_COCOA_EXIT(env);
252 return jreturnArray;
253 }