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