1 /* 2 * Copyright (c) 2010, 2014, 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 #include <jni.h> 27 #include <stdio.h> 28 #include <jni_util.h> 29 #include <string.h> 30 #include "gtk2_interface.h" 31 #include "sun_awt_X11_GtkFileDialogPeer.h" 32 #include "java_awt_FileDialog.h" 33 #include "debug_assert.h" 34 35 static JavaVM *jvm; 36 37 /* To cache some method IDs */ 38 static jmethodID filenameFilterCallbackMethodID = NULL; 39 static jmethodID setFileInternalMethodID = NULL; 40 static jfieldID widgetFieldID = NULL; 41 42 JNIEXPORT void JNICALL Java_sun_awt_X11_GtkFileDialogPeer_initIDs 43 (JNIEnv *env, jclass cx) 44 { 45 filenameFilterCallbackMethodID = (*env)->GetMethodID(env, cx, 46 "filenameFilterCallback", "(Ljava/lang/String;)Z"); 47 DASSERT(filenameFilterCallbackMethodID != NULL); 48 CHECK_NULL(filenameFilterCallbackMethodID); 49 50 setFileInternalMethodID = (*env)->GetMethodID(env, cx, 51 "setFileInternal", "(Ljava/lang/String;[Ljava/lang/String;)V"); 52 DASSERT(setFileInternalMethodID != NULL); 53 CHECK_NULL(setFileInternalMethodID); 54 55 widgetFieldID = (*env)->GetFieldID(env, cx, "widget", "J"); 56 DASSERT(widgetFieldID != NULL); 57 } 58 59 static gboolean filenameFilterCallback(const GtkFileFilterInfo * filter_info, gpointer obj) 60 { 61 JNIEnv *env; 62 jstring filename; 63 64 env = (JNIEnv *) JNU_GetEnv(jvm, JNI_VERSION_1_2); 65 66 filename = (*env)->NewStringUTF(env, filter_info->filename); 67 JNU_CHECK_EXCEPTION_RETURN(env, FALSE); 68 69 return (*env)->CallBooleanMethod(env, obj, filenameFilterCallbackMethodID, 70 filename); 71 } 72 73 static void quit(JNIEnv * env, jobject jpeer, gboolean isSignalHandler) 74 { 75 jthrowable pendingException; 76 if (pendingException = (*env)->ExceptionOccurred(env)) { 77 (*env)->ExceptionClear(env); 78 } 79 80 GtkWidget * dialog = (GtkWidget*)jlong_to_ptr( 81 (*env)->GetLongField(env, jpeer, widgetFieldID)); 82 83 if (dialog != NULL) 84 { 85 // Callbacks from GTK signals are made within the GTK lock 86 // So, within a signal handler there is no need to call 87 // gdk_threads_enter() / fp_gdk_threads_leave() 88 if (!isSignalHandler) { 89 fp_gdk_threads_enter(); 90 } 91 92 fp_gtk_widget_hide (dialog); 93 fp_gtk_widget_destroy (dialog); 94 95 fp_gtk_main_quit (); 96 97 (*env)->SetLongField(env, jpeer, widgetFieldID, 0); 98 99 if (!isSignalHandler) { 100 fp_gdk_threads_leave(); 101 } 102 } 103 104 if (pendingException) { 105 (*env)->Throw(env, pendingException); 106 } 107 } 108 109 /* 110 * Class: sun_awt_X11_GtkFileDialogPeer 111 * Method: quit 112 * Signature: ()V 113 */ 114 JNIEXPORT void JNICALL Java_sun_awt_X11_GtkFileDialogPeer_quit 115 (JNIEnv * env, jobject jpeer) 116 { 117 quit(env, jpeer, FALSE); 118 } 119 120 /* 121 * Class: sun_awt_X11_GtkFileDialogPeer 122 * Method: toFront 123 * Signature: ()V 124 */ 125 JNIEXPORT void JNICALL Java_sun_awt_X11_GtkFileDialogPeer_toFront 126 (JNIEnv * env, jobject jpeer) 127 { 128 GtkWidget * dialog; 129 130 fp_gdk_threads_enter(); 131 132 dialog = (GtkWidget*)jlong_to_ptr( 133 (*env)->GetLongField(env, jpeer, widgetFieldID)); 134 135 if (dialog != NULL) { 136 fp_gtk_window_present((GtkWindow*)dialog); 137 } 138 139 fp_gdk_threads_leave(); 140 } 141 142 /* 143 * Class: sun_awt_X11_GtkFileDialogPeer 144 * Method: setBounds 145 * Signature: (IIIII)V 146 */ 147 JNIEXPORT void JNICALL Java_sun_awt_X11_GtkFileDialogPeer_setBounds 148 (JNIEnv * env, jobject jpeer, jint x, jint y, jint width, jint height, jint op) 149 { 150 GtkWindow* dialog; 151 152 fp_gdk_threads_enter(); 153 154 dialog = (GtkWindow*)jlong_to_ptr( 155 (*env)->GetLongField(env, jpeer, widgetFieldID)); 156 157 if (dialog != NULL) { 158 if (x >= 0 && y >= 0) { 159 fp_gtk_window_move(dialog, (gint)x, (gint)y); 160 } 161 if (width > 0 && height > 0) { 162 fp_gtk_window_resize(dialog, (gint)width, (gint)height); 163 } 164 } 165 166 fp_gdk_threads_leave(); 167 } 168 169 /* 170 * baseDir should be freed by user. 171 */ 172 static gboolean isFromSameDirectory(GSList* list, gchar** baseDir) { 173 174 GSList *it = list; 175 gchar* prevDir = NULL; 176 gboolean isAllDirsSame = TRUE; 177 178 while (it) { 179 gchar* dir = fp_g_path_get_dirname((gchar*) it->data); 180 181 if (prevDir && strcmp(prevDir, dir) != 0) { 182 isAllDirsSame = FALSE; 183 fp_g_free(dir); 184 break; 185 } 186 187 if (!prevDir) { 188 prevDir = strdup(dir); 189 } 190 fp_g_free(dir); 191 192 it = it->next; 193 } 194 195 if (isAllDirsSame) { 196 *baseDir = prevDir; 197 } else { 198 free(prevDir); 199 *baseDir = strdup("/"); 200 } 201 202 return isAllDirsSame; 203 } 204 205 /** 206 * Convert a GSList to an array of filenames 207 */ 208 static jobjectArray toFilenamesArray(JNIEnv *env, GSList* list, jstring* jcurrent_folder) 209 { 210 jstring str; 211 jclass stringCls; 212 GSList *iterator; 213 jobjectArray array; 214 int i; 215 gchar* entry; 216 gchar * baseDir; 217 gboolean isFromSameDir; 218 219 if (list == NULL) { 220 return NULL; 221 } 222 223 stringCls = (*env)->FindClass(env, "java/lang/String"); 224 if (stringCls == NULL) { 225 (*env)->ExceptionClear(env); 226 JNU_ThrowInternalError(env, "Could not get java.lang.String class"); 227 return NULL; 228 } 229 230 array = (*env)->NewObjectArray(env, fp_gtk_g_slist_length(list), stringCls, NULL); 231 if (array == NULL) { 232 (*env)->ExceptionClear(env); 233 JNU_ThrowInternalError(env, "Could not instantiate array files array"); 234 return NULL; 235 } 236 237 isFromSameDir = isFromSameDirectory(list, &baseDir); 238 239 *jcurrent_folder = (*env)->NewStringUTF(env, baseDir); 240 if (*jcurrent_folder == NULL) { 241 free(baseDir); 242 return NULL; 243 } 244 245 for (iterator = list, i=0; 246 iterator; 247 iterator = iterator->next, i++) { 248 249 entry = (gchar*) iterator->data; 250 251 if (isFromSameDir) { 252 entry = strrchr(entry, '/') + 1; 253 } else if (entry[0] == '/') { 254 entry++; 255 } 256 257 str = (*env)->NewStringUTF(env, entry); 258 if((*env)->ExceptionCheck(env)){ 259 break; 260 } 261 if (str) { 262 (*env)->SetObjectArrayElement(env, array, i, str); 263 if((*env)->ExceptionCheck(env)){ 264 break; 265 } 266 } 267 } 268 269 free(baseDir); 270 return array; 271 } 272 273 static void handle_response(GtkWidget* aDialog, gint responseId, gpointer obj) 274 { 275 JNIEnv *env; 276 GSList *filenames; 277 jstring jcurrent_folder = NULL; 278 jobjectArray jfilenames; 279 280 env = (JNIEnv *) JNU_GetEnv(jvm, JNI_VERSION_1_2); 281 filenames = NULL; 282 283 if (responseId == GTK_RESPONSE_ACCEPT) { 284 filenames = fp_gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(aDialog)); 285 } 286 287 jfilenames = toFilenamesArray(env, filenames, &jcurrent_folder); 288 289 if (!(*env)->ExceptionCheck(env)) { 290 (*env)->CallVoidMethod(env, obj, setFileInternalMethodID, 291 jcurrent_folder, jfilenames); 292 } 293 294 quit(env, (jobject)obj, TRUE); 295 } 296 297 /* 298 * Class: sun_awt_X11_GtkFileDialogPeer 299 * Method: run 300 * Signature: (Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;Ljava/io/FilenameFilter;ZII)V 301 */ 302 JNIEXPORT void JNICALL 303 Java_sun_awt_X11_GtkFileDialogPeer_run(JNIEnv * env, jobject jpeer, 304 jstring jtitle, jint mode, jstring jdir, jstring jfile, 305 jobject jfilter, jboolean multiple, int x, int y) 306 { 307 GtkWidget *dialog = NULL; 308 GtkFileFilter *filter; 309 310 if (jvm == NULL) { 311 (*env)->GetJavaVM(env, &jvm); 312 JNU_CHECK_EXCEPTION(env); 313 } 314 315 fp_gdk_threads_enter(); 316 317 const char *title = jtitle == NULL? "": (*env)->GetStringUTFChars(env, jtitle, 0); 318 if (title == NULL) { 319 (*env)->ExceptionClear(env); 320 JNU_ThrowOutOfMemoryError(env, "Could not get title"); 321 return; 322 } 323 324 if (mode == java_awt_FileDialog_SAVE) { 325 /* Save action */ 326 dialog = fp_gtk_file_chooser_dialog_new(title, NULL, 327 GTK_FILE_CHOOSER_ACTION_SAVE, GTK_STOCK_CANCEL, 328 GTK_RESPONSE_CANCEL, GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT, NULL); 329 } 330 else { 331 /* Default action OPEN */ 332 dialog = fp_gtk_file_chooser_dialog_new(title, NULL, 333 GTK_FILE_CHOOSER_ACTION_OPEN, GTK_STOCK_CANCEL, 334 GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL); 335 336 /* Set multiple selection mode, that is allowed only in OPEN action */ 337 if (multiple) { 338 fp_gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(dialog), 339 multiple); 340 } 341 } 342 343 if (jtitle != NULL) { 344 (*env)->ReleaseStringUTFChars(env, jtitle, title); 345 } 346 347 /* Set the directory */ 348 if (jdir != NULL) { 349 const char *dir = (*env)->GetStringUTFChars(env, jdir, 0); 350 if (dir == NULL) { 351 (*env)->ExceptionClear(env); 352 JNU_ThrowOutOfMemoryError(env, "Could not get dir"); 353 return; 354 } 355 fp_gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), dir); 356 (*env)->ReleaseStringUTFChars(env, jdir, dir); 357 } 358 359 /* Set the filename */ 360 if (jfile != NULL) { 361 const char *filename = (*env)->GetStringUTFChars(env, jfile, 0); 362 if (filename == NULL) { 363 (*env)->ExceptionClear(env); 364 JNU_ThrowOutOfMemoryError(env, "Could not get filename"); 365 return; 366 } 367 if (mode == java_awt_FileDialog_SAVE) { 368 fp_gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), filename); 369 } else { 370 fp_gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(dialog), filename); 371 } 372 (*env)->ReleaseStringUTFChars(env, jfile, filename); 373 } 374 375 /* Set the file filter */ 376 if (jfilter != NULL) { 377 filter = fp_gtk_file_filter_new(); 378 fp_gtk_file_filter_add_custom(filter, GTK_FILE_FILTER_FILENAME, 379 filenameFilterCallback, jpeer, NULL); 380 fp_gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(dialog), filter); 381 } 382 383 /* Other Properties */ 384 if (fp_gtk_check_version(2, 8, 0) == NULL) { 385 fp_gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER( 386 dialog), TRUE); 387 } 388 389 /* Set the initial location */ 390 if (x >= 0 && y >= 0) { 391 fp_gtk_window_move((GtkWindow*)dialog, (gint)x, (gint)y); 392 393 // NOTE: it doesn't set the initial size for the file chooser 394 // as it seems like the file chooser overrides the size internally 395 } 396 397 fp_g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK( 398 handle_response), jpeer); 399 400 (*env)->SetLongField(env, jpeer, widgetFieldID, ptr_to_jlong(dialog)); 401 402 fp_gtk_widget_show(dialog); 403 404 fp_gtk_main(); 405 fp_gdk_threads_leave(); 406 } 407