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 jclass cx;
63 jstring filename;
64
65 env = (JNIEnv *) JNU_GetEnv(jvm, JNI_VERSION_1_2);
66
67 filename = (*env)->NewStringUTF(env, filter_info->filename);
68 JNU_CHECK_EXCEPTION_RETURN(env, FALSE);
69
70 return (*env)->CallBooleanMethod(env, obj, filenameFilterCallbackMethodID,
71 filename);
72 }
73
74 static void quit(JNIEnv * env, jobject jpeer, gboolean isSignalHandler)
75 {
76 GtkWidget * dialog = (GtkWidget*)jlong_to_ptr(
77 (*env)->GetLongField(env, jpeer, widgetFieldID));
78
79 if (dialog != NULL)
80 {
81 // Callbacks from GTK signals are made within the GTK lock
82 // So, within a signal handler there is no need to call
83 // gdk_threads_enter() / fp_gdk_threads_leave()
84 if (!isSignalHandler) {
85 fp_gdk_threads_enter();
86 }
87
88 fp_gtk_widget_hide (dialog);
89 fp_gtk_widget_destroy (dialog);
90
91 fp_gtk_main_quit ();
92
93 (*env)->SetLongField(env, jpeer, widgetFieldID, 0);
94
95 if (!isSignalHandler) {
96 fp_gdk_threads_leave();
97 }
98 }
99 }
100
101 /*
102 * Class: sun_awt_X11_GtkFileDialogPeer
103 * Method: quit
104 * Signature: ()V
105 */
106 JNIEXPORT void JNICALL Java_sun_awt_X11_GtkFileDialogPeer_quit
107 (JNIEnv * env, jobject jpeer)
108 {
109 quit(env, jpeer, FALSE);
110 }
111
112 /*
113 * Class: sun_awt_X11_GtkFileDialogPeer
114 * Method: toFront
115 * Signature: ()V
116 */
117 JNIEXPORT void JNICALL Java_sun_awt_X11_GtkFileDialogPeer_toFront
118 (JNIEnv * env, jobject jpeer)
119 {
120 GtkWidget * dialog;
121
122 fp_gdk_threads_enter();
123
124 dialog = (GtkWidget*)jlong_to_ptr(
125 (*env)->GetLongField(env, jpeer, widgetFieldID));
126
127 if (dialog != NULL) {
128 fp_gtk_window_present((GtkWindow*)dialog);
129 }
130
131 fp_gdk_threads_leave();
132 }
133
134 /*
135 * Class: sun_awt_X11_GtkFileDialogPeer
136 * Method: setBounds
137 * Signature: (IIIII)V
138 */
139 JNIEXPORT void JNICALL Java_sun_awt_X11_GtkFileDialogPeer_setBounds
140 (JNIEnv * env, jobject jpeer, jint x, jint y, jint width, jint height, jint op)
141 {
142 GtkWindow* dialog;
143
144 fp_gdk_threads_enter();
145
146 dialog = (GtkWindow*)jlong_to_ptr(
147 (*env)->GetLongField(env, jpeer, widgetFieldID));
148
149 if (dialog != NULL) {
150 if (x >= 0 && y >= 0) {
151 fp_gtk_window_move(dialog, (gint)x, (gint)y);
152 }
153 if (width > 0 && height > 0) {
154 fp_gtk_window_resize(dialog, (gint)width, (gint)height);
155 }
156 }
157
158 fp_gdk_threads_leave();
159 }
160
161 /**
162 * Convert a GSList to an array of filenames (without the parent folder)
163 */
164 static jobjectArray toFilenamesArray(JNIEnv *env, GSList* list)
165 {
166 jstring str;
167 jclass stringCls;
168 GSList *iterator;
169 jobjectArray array;
170 int i;
171 char* entry;
172
173 if (NULL == list) {
174 return NULL;
175 }
176
177 stringCls = (*env)->FindClass(env, "java/lang/String");
178 if (stringCls == NULL) {
179 (*env)->ExceptionClear(env);
180 JNU_ThrowInternalError(env, "Could not get java.lang.String class");
181 return NULL;
182 }
183
184 array = (*env)->NewObjectArray(env, fp_gtk_g_slist_length(list), stringCls, NULL);
185 if (array == NULL) {
186 (*env)->ExceptionClear(env);
187 JNU_ThrowInternalError(env, "Could not instantiate array files array");
188 return NULL;
189 }
190
191 i = 0;
192 for (iterator = list; iterator; iterator = iterator->next) {
193 entry = (char*) iterator->data;
194 entry = strrchr(entry, '/') + 1;
195 str = (*env)->NewStringUTF(env, entry);
196 if (str && !(*env)->ExceptionCheck(env)) {
197 (*env)->SetObjectArrayElement(env, array, i, str);
198 }
199 i++;
200 }
201
202 return array;
203 }
204
205 /**
206 * Convert a GSList to an array of filenames (with the parent folder)
207 */
208 static jobjectArray toPathAndFilenamesArray(JNIEnv *env, GSList* list)
209 {
210 jstring str;
211 jclass stringCls;
212 GSList *iterator;
213 jobjectArray array;
214 int i;
215 char* entry;
216
217
218 if (list == NULL) {
219 return NULL;
220 }
221
222 stringCls = (*env)->FindClass(env, "java/lang/String");
223 if (stringCls == NULL) {
224 (*env)->ExceptionClear(env);
225 JNU_ThrowInternalError(env, "Could not get java.lang.String class");
226 return NULL;
227 }
228
229 array = (*env)->NewObjectArray(env, fp_gtk_g_slist_length(list), stringCls, NULL);
230 if (array == NULL) {
231 (*env)->ExceptionClear(env);
232 JNU_ThrowInternalError(env, "Could not instantiate array files array");
233 return NULL;
234 }
235
236 i = 0;
237 for (iterator = list; iterator; iterator = iterator->next) {
238 entry = (char*) iterator->data;
239
240 //check for leading slash.
241 if (entry[0] == '/') {
242 entry++;
243 }
244
245 str = (*env)->NewStringUTF(env, entry);
246 if (str && !(*env)->ExceptionCheck(env)) {
247 (*env)->SetObjectArrayElement(env, array, i, str);
248 }
249 i++;
250 }
251
252 return array;
253 }
254
255 static void handle_response(GtkWidget* aDialog, gint responseId, gpointer obj)
256 {
257 JNIEnv *env;
258 char *current_folder;
259 GSList *filenames;
260 jclass cx;
261 jstring jcurrent_folder;
262 jobjectArray jfilenames;
263
264 env = (JNIEnv *) JNU_GetEnv(jvm, JNI_VERSION_1_2);
265 current_folder = NULL;
266 filenames = NULL;
267 gboolean full_path_names = FALSE;
268
269 if (responseId == GTK_RESPONSE_ACCEPT) {
270 current_folder = fp_gtk_file_chooser_get_current_folder(
271 GTK_FILE_CHOOSER(aDialog));
272 if (current_folder == NULL) {
273 full_path_names = TRUE;
274 }
275 filenames = fp_gtk_file_chooser_get_filenames(GTK_FILE_CHOOSER(aDialog));
276 }
277 if (full_path_names) {
278 //This is a hack for use with "Recent Folders" in gtk where each
279 //file could have its own directory.
280 jfilenames = toPathAndFilenamesArray(env, filenames);
281 jcurrent_folder = (*env)->NewStringUTF(env, "/");
282 } else {
283 jfilenames = toFilenamesArray(env, filenames);
284 jcurrent_folder = (*env)->NewStringUTF(env, current_folder);
285 }
286 if (!(*env)->ExceptionCheck(env)) {
287 (*env)->CallVoidMethod(env, obj, setFileInternalMethodID,
288 jcurrent_folder, jfilenames);
289 }
290 fp_g_free(current_folder);
291 quit(env, (jobject)obj, TRUE);
292 }
293
294 /*
295 * Class: sun_awt_X11_GtkFileDialogPeer
296 * Method: run
297 * Signature: (Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;Ljava/io/FilenameFilter;ZII)V
298 */
299 JNIEXPORT void JNICALL
300 Java_sun_awt_X11_GtkFileDialogPeer_run(JNIEnv * env, jobject jpeer,
301 jstring jtitle, jint mode, jstring jdir, jstring jfile,
302 jobject jfilter, jboolean multiple, int x, int y)
303 {
304 GtkWidget *dialog = NULL;
305 GtkFileFilter *filter;
306
307 if (jvm == NULL) {
308 (*env)->GetJavaVM(env, &jvm);
309 JNU_CHECK_EXCEPTION(env);
310 }
311
312 fp_gdk_threads_enter();
313
314 const char *title = jtitle == NULL? "": (*env)->GetStringUTFChars(env, jtitle, 0);
315 if (title == NULL) {
316 (*env)->ExceptionClear(env);
317 JNU_ThrowOutOfMemoryError(env, "Could not get title");
318 return;
319 }
320
321 if (mode == java_awt_FileDialog_SAVE) {
322 /* Save action */
323 dialog = fp_gtk_file_chooser_dialog_new(title, NULL,
324 GTK_FILE_CHOOSER_ACTION_SAVE, GTK_STOCK_CANCEL,
325 GTK_RESPONSE_CANCEL, GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT, NULL);
326 }
327 else {
328 /* Default action OPEN */
329 dialog = fp_gtk_file_chooser_dialog_new(title, NULL,
330 GTK_FILE_CHOOSER_ACTION_OPEN, GTK_STOCK_CANCEL,
331 GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL);
332
333 /* Set multiple selection mode, that is allowed only in OPEN action */
334 if (multiple) {
335 fp_gtk_file_chooser_set_select_multiple(GTK_FILE_CHOOSER(dialog),
336 multiple);
337 }
338 }
339
340 if (jtitle != NULL) {
341 (*env)->ReleaseStringUTFChars(env, jtitle, title);
342 }
343
344 /* Set the directory */
345 if (jdir != NULL) {
346 const char *dir = (*env)->GetStringUTFChars(env, jdir, 0);
347 if (dir == NULL) {
348 (*env)->ExceptionClear(env);
349 JNU_ThrowOutOfMemoryError(env, "Could not get dir");
350 return;
351 }
352 fp_gtk_file_chooser_set_current_folder(GTK_FILE_CHOOSER(dialog), dir);
353 (*env)->ReleaseStringUTFChars(env, jdir, dir);
354 }
355
356 /* Set the filename */
357 if (jfile != NULL) {
358 const char *filename = (*env)->GetStringUTFChars(env, jfile, 0);
359 if (filename == NULL) {
360 (*env)->ExceptionClear(env);
361 JNU_ThrowOutOfMemoryError(env, "Could not get filename");
362 return;
363 }
364 if (mode == java_awt_FileDialog_SAVE) {
365 fp_gtk_file_chooser_set_current_name(GTK_FILE_CHOOSER(dialog), filename);
366 } else {
367 fp_gtk_file_chooser_set_filename(GTK_FILE_CHOOSER(dialog), filename);
368 }
369 (*env)->ReleaseStringUTFChars(env, jfile, filename);
370 }
371
372 /* Set the file filter */
373 if (jfilter != NULL) {
374 filter = fp_gtk_file_filter_new();
375 fp_gtk_file_filter_add_custom(filter, GTK_FILE_FILTER_FILENAME,
376 filenameFilterCallback, jpeer, NULL);
377 fp_gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(dialog), filter);
378 }
379
380 /* Other Properties */
381 if (fp_gtk_check_version(2, 8, 0) == NULL) {
382 fp_gtk_file_chooser_set_do_overwrite_confirmation(GTK_FILE_CHOOSER(
383 dialog), TRUE);
384 }
385
386 /* Set the initial location */
387 if (x >= 0 && y >= 0) {
388 fp_gtk_window_move((GtkWindow*)dialog, (gint)x, (gint)y);
389
390 // NOTE: it doesn't set the initial size for the file chooser
391 // as it seems like the file chooser overrides the size internally
392 }
393
394 fp_g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK(
395 handle_response), jpeer);
396
397 (*env)->SetLongField(env, jpeer, widgetFieldID, ptr_to_jlong(dialog));
398
399 fp_gtk_widget_show(dialog);
400
401 fp_gtk_main();
402 fp_gdk_threads_leave();
403 }
404