1 /*
2 * Copyright (c) 2011, 2016, 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 #include "glass_general.h"
26
27 #include <jni.h>
28 #include <gtk/gtk.h>
29
30 char const * const GDK_WINDOW_DATA_CONTEXT = "glass_window_context";
31
32 jclass jStringCls;
33 jclass jByteBufferCls;
34 jmethodID jByteBufferArray;
35 jmethodID jByteBufferWrap;
36
37 jclass jRunnableCls;
38 jmethodID jRunnableRun;
39
40 jclass jArrayListCls;
41 jmethodID jArrayListInit;
42 jmethodID jArrayListAdd;
43 jmethodID jArrayListGetIdx;
44
45 jmethodID jPixelsAttachData;
46
47 jclass jGtkPixelsCls;
48 jmethodID jGtkPixelsInit;
49
50 jclass jScreenCls;
51 jmethodID jScreenInit;
52 jmethodID jScreenNotifySettingsChanged;
53
54 jmethodID jViewNotifyResize;
55 jmethodID jViewNotifyMouse;
56 jmethodID jViewNotifyRepaint;
57 jmethodID jViewNotifyKey;
58 jmethodID jViewNotifyView;
59 jmethodID jViewNotifyDragEnter;
60 jmethodID jViewNotifyDragOver;
61 jmethodID jViewNotifyDragDrop;
62 jmethodID jViewNotifyDragLeave;
63 jmethodID jViewNotifyScroll;
64 jmethodID jViewNotifyInputMethod;
65 jmethodID jViewNotifyInputMethodDraw;
66 jmethodID jViewNotifyInputMethodCaret;
67 jmethodID jViewNotifyPreeditMode;
68 jmethodID jViewNotifyMenu;
69 jfieldID jViewPtr;
70
71 jmethodID jWindowNotifyResize;
72 jmethodID jWindowNotifyMove;
73 jmethodID jWindowNotifyDestroy;
74 jmethodID jWindowNotifyClose;
75 jmethodID jWindowNotifyFocus;
76 jmethodID jWindowNotifyFocusDisabled;
77 jmethodID jWindowNotifyFocusUngrab;
78 jmethodID jWindowNotifyMoveToAnotherScreen;
79 jmethodID jWindowNotifyLevelChanged;
80 jmethodID jWindowIsEnabled;
81 jmethodID jWindowNotifyDelegatePtr;
82 jfieldID jWindowPtr;
83 jfieldID jCursorPtr;
84
85 jmethodID jGtkWindowNotifyStateChanged;
86
87 jmethodID jClipboardContentChanged;
88
89 jmethodID jSizeInit;
90
91 jmethodID jMapGet;
92 jmethodID jMapKeySet;
93 jmethodID jMapContainsKey;
94
95 jclass jHashSetCls;
96 jmethodID jHashSetInit;
97
98 jmethodID jSetAdd;
99 jmethodID jSetSize;
100 jmethodID jSetToArray;
101
102 jmethodID jIterableIterator;
103 jmethodID jIteratorHasNext;
104 jmethodID jIteratorNext;
105
106 jclass jApplicationCls;
107 jfieldID jApplicationDisplay;
108 jfieldID jApplicationScreen;
109 jfieldID jApplicationVisualID;
110 jmethodID jApplicationReportException;
111 jmethodID jApplicationGetApplication;
112 jmethodID jApplicationGetName;
113
114 static jboolean displayValid = JNI_FALSE;
115
116 jboolean
117 is_display_valid() {
118 return displayValid;
119 }
120
121 JNIEXPORT jint JNICALL
122 JNI_OnLoad(JavaVM *jvm, void *reserved)
123 {
124 (void)reserved;
125
126 JNIEnv *env;
127 jclass clazz;
128 Display* display;
129
130 if (jvm->GetEnv((void **)&env, JNI_VERSION_1_6)) {
131 return JNI_ERR; /* JNI version not supported */
132 }
133
134 clazz = env->FindClass("java/lang/String");
135 if (env->ExceptionCheck()) return JNI_ERR;
136 jStringCls = (jclass) env->NewGlobalRef(clazz);
137
138 clazz = env->FindClass("java/nio/ByteBuffer");
139 if (env->ExceptionCheck()) return JNI_ERR;
140 jByteBufferCls = (jclass) env->NewGlobalRef(clazz);
141 jByteBufferArray = env->GetMethodID(jByteBufferCls, "array", "()[B");
142 if (env->ExceptionCheck()) return JNI_ERR;
143 jByteBufferWrap = env->GetStaticMethodID(jByteBufferCls, "wrap", "([B)Ljava/nio/ByteBuffer;");
144 if (env->ExceptionCheck()) return JNI_ERR;
145
146 clazz = env->FindClass("java/lang/Runnable");
147 if (env->ExceptionCheck()) return JNI_ERR;
148
149 jRunnableRun = env->GetMethodID(clazz, "run", "()V");
150 if (env->ExceptionCheck()) return JNI_ERR;
151
152 clazz = env->FindClass("java/util/ArrayList");
153 if (env->ExceptionCheck()) return JNI_ERR;
154 jArrayListCls = (jclass) env->NewGlobalRef(clazz);
155 jArrayListInit = env->GetMethodID(jArrayListCls, "<init>", "()V");
156 if (env->ExceptionCheck()) return JNI_ERR;
157 jArrayListAdd = env->GetMethodID(jArrayListCls, "add", "(Ljava/lang/Object;)Z");
158 if (env->ExceptionCheck()) return JNI_ERR;
159 jArrayListGetIdx = env->GetMethodID(jArrayListCls, "get", "(I)Ljava/lang/Object;");
160 if (env->ExceptionCheck()) return JNI_ERR;
161 clazz = env->FindClass("com/sun/glass/ui/Pixels");
162 if (env->ExceptionCheck()) return JNI_ERR;
163 jPixelsAttachData = env->GetMethodID(clazz, "attachData", "(J)V");
164 if (env->ExceptionCheck()) return JNI_ERR;
165
166 clazz = env->FindClass("com/sun/glass/ui/gtk/GtkPixels");
167 if (env->ExceptionCheck()) return JNI_ERR;
168
169 jGtkPixelsCls = (jclass) env->NewGlobalRef(clazz);
170 jGtkPixelsInit = env->GetMethodID(jGtkPixelsCls, "<init>", "(IILjava/nio/ByteBuffer;)V");
171 if (env->ExceptionCheck()) return JNI_ERR;
172
173 clazz = env->FindClass("com/sun/glass/ui/Screen");
174 if (env->ExceptionCheck()) return JNI_ERR;
175 jScreenCls = (jclass) env->NewGlobalRef(clazz);
176 jScreenInit = env->GetMethodID(jScreenCls, "<init>", "(JIIIIIIIIIIIIIIIFFFF)V");
177 if (env->ExceptionCheck()) return JNI_ERR;
178 jScreenNotifySettingsChanged = env->GetStaticMethodID(jScreenCls, "notifySettingsChanged", "()V");
179 if (env->ExceptionCheck()) return JNI_ERR;
180
181 clazz = env->FindClass("com/sun/glass/ui/View");
182 if (env->ExceptionCheck()) return JNI_ERR;
183 jViewNotifyResize = env->GetMethodID(clazz, "notifyResize", "(II)V");
184 if (env->ExceptionCheck()) return JNI_ERR;
185 jViewNotifyMouse = env->GetMethodID(clazz, "notifyMouse", "(IIIIIIIZZ)V");
186 if (env->ExceptionCheck()) return JNI_ERR;
187 jViewNotifyRepaint = env->GetMethodID(clazz, "notifyRepaint", "(IIII)V");
188 if (env->ExceptionCheck()) return JNI_ERR;
189 jViewNotifyKey = env->GetMethodID(clazz, "notifyKey", "(II[CI)V");
190 if (env->ExceptionCheck()) return JNI_ERR;
191 jViewNotifyView = env->GetMethodID(clazz, "notifyView", "(I)V");
192 if (env->ExceptionCheck()) return JNI_ERR;
193 jViewNotifyDragEnter = env->GetMethodID(clazz, "notifyDragEnter", "(IIIII)I");
194 if (env->ExceptionCheck()) return JNI_ERR;
195 jViewNotifyDragOver = env->GetMethodID(clazz, "notifyDragOver", "(IIIII)I");
196 if (env->ExceptionCheck()) return JNI_ERR;
197 jViewNotifyDragDrop = env->GetMethodID(clazz, "notifyDragDrop", "(IIIII)I");
198 if (env->ExceptionCheck()) return JNI_ERR;
199 jViewNotifyDragLeave = env->GetMethodID(clazz, "notifyDragLeave", "()V");
200 if (env->ExceptionCheck()) return JNI_ERR;
201 jViewNotifyScroll = env->GetMethodID(clazz, "notifyScroll", "(IIIIDDIIIIIDD)V");
202 if (env->ExceptionCheck()) return JNI_ERR;
203 jViewNotifyInputMethod = env->GetMethodID(clazz, "notifyInputMethod", "(Ljava/lang/String;[I[I[BIII)V");
204 if (env->ExceptionCheck()) return JNI_ERR;
205 jViewNotifyMenu = env->GetMethodID(clazz, "notifyMenu", "(IIIIZ)V");
206 if (env->ExceptionCheck()) return JNI_ERR;
207 jViewPtr = env->GetFieldID(clazz, "ptr", "J");
208 if (env->ExceptionCheck()) return JNI_ERR;
209
210 clazz = env->FindClass("com/sun/glass/ui/gtk/GtkView");
211 if (env->ExceptionCheck()) return JNI_ERR;
212 jViewNotifyInputMethodDraw = env->GetMethodID(clazz, "notifyInputMethodDraw", "(Ljava/lang/String;III[B)V");
213 if (env->ExceptionCheck()) return JNI_ERR;
214 jViewNotifyInputMethodCaret = env->GetMethodID(clazz, "notifyInputMethodCaret", "(III)V");
215 if (env->ExceptionCheck()) return JNI_ERR;
216 jViewNotifyPreeditMode = env->GetMethodID(clazz, "notifyPreeditMode", "(Z)V");
217 if (env->ExceptionCheck()) return JNI_ERR;
218
219 clazz = env->FindClass("com/sun/glass/ui/Window");
220 if (env->ExceptionCheck()) return JNI_ERR;
221 jWindowNotifyResize = env->GetMethodID(clazz, "notifyResize", "(III)V");
222 if (env->ExceptionCheck()) return JNI_ERR;
223 jWindowNotifyMove = env->GetMethodID(clazz, "notifyMove", "(II)V");
224 if (env->ExceptionCheck()) return JNI_ERR;
225 jWindowNotifyDestroy = env->GetMethodID(clazz, "notifyDestroy", "()V");
226 if (env->ExceptionCheck()) return JNI_ERR;
227 jWindowNotifyClose = env->GetMethodID(clazz, "notifyClose", "()V");
228 if (env->ExceptionCheck()) return JNI_ERR;
229 jWindowNotifyFocus = env->GetMethodID(clazz, "notifyFocus", "(I)V");
230 if (env->ExceptionCheck()) return JNI_ERR;
231 jWindowNotifyFocusDisabled = env->GetMethodID(clazz, "notifyFocusDisabled", "()V");
232 if (env->ExceptionCheck()) return JNI_ERR;
233 jWindowNotifyFocusUngrab = env->GetMethodID(clazz, "notifyFocusUngrab", "()V");
234 if (env->ExceptionCheck()) return JNI_ERR;
235 jWindowNotifyMoveToAnotherScreen = env->GetMethodID(clazz, "notifyMoveToAnotherScreen", "(Lcom/sun/glass/ui/Screen;)V");
236 if (env->ExceptionCheck()) return JNI_ERR;
237 jWindowNotifyLevelChanged = env->GetMethodID(clazz, "notifyLevelChanged", "(I)V");
238 if (env->ExceptionCheck()) return JNI_ERR;
239 jWindowIsEnabled = env->GetMethodID(clazz, "isEnabled", "()Z");
240 if (env->ExceptionCheck()) return JNI_ERR;
241 jWindowNotifyDelegatePtr = env->GetMethodID(clazz, "notifyDelegatePtr", "(J)V");
242 if (env->ExceptionCheck()) return JNI_ERR;
243 jWindowPtr = env->GetFieldID(clazz, "ptr", "J");
244 if (env->ExceptionCheck()) return JNI_ERR;
245
246 clazz = env->FindClass("com/sun/glass/ui/gtk/GtkWindow");
247 if (env->ExceptionCheck()) return JNI_ERR;
248 jGtkWindowNotifyStateChanged =
249 env->GetMethodID(clazz, "notifyStateChanged", "(I)V");
250 if (env->ExceptionCheck()) return JNI_ERR;
251
252 clazz = env->FindClass("com/sun/glass/ui/Clipboard");
253 if (env->ExceptionCheck()) return JNI_ERR;
254 jClipboardContentChanged = env->GetMethodID(clazz, "contentChanged", "()V");
255 if (env->ExceptionCheck()) return JNI_ERR;
256
257 clazz = env->FindClass("com/sun/glass/ui/Cursor");
258 if (env->ExceptionCheck()) return JNI_ERR;
259 jCursorPtr = env->GetFieldID(clazz, "ptr", "J");
260 if (env->ExceptionCheck()) return JNI_ERR;
261
262 clazz = env->FindClass("com/sun/glass/ui/Size");
263 if (env->ExceptionCheck()) return JNI_ERR;
264 jSizeInit = env->GetMethodID(clazz, "<init>", "(II)V");
265 if (env->ExceptionCheck()) return JNI_ERR;
266
267 clazz = env->FindClass("java/util/Map");
268 if (env->ExceptionCheck()) return JNI_ERR;
269 jMapGet = env->GetMethodID(clazz, "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
270 if (env->ExceptionCheck()) return JNI_ERR;
271 jMapKeySet = env->GetMethodID(clazz, "keySet", "()Ljava/util/Set;");
272 if (env->ExceptionCheck()) return JNI_ERR;
273 jMapContainsKey = env->GetMethodID(clazz, "containsKey", "(Ljava/lang/Object;)Z");
274 if (env->ExceptionCheck()) return JNI_ERR;
275
276 clazz = env->FindClass("java/util/HashSet");
277 if (env->ExceptionCheck()) return JNI_ERR;
278 jHashSetCls = (jclass) env->NewGlobalRef(clazz);
279 jHashSetInit = env->GetMethodID(jHashSetCls, "<init>", "()V");
280 if (env->ExceptionCheck()) return JNI_ERR;
281
282 clazz = env->FindClass("java/util/Set");
283 if (env->ExceptionCheck()) return JNI_ERR;
284 jSetAdd = env->GetMethodID(clazz, "add", "(Ljava/lang/Object;)Z");
285 if (env->ExceptionCheck()) return JNI_ERR;
286 jSetSize = env->GetMethodID(clazz, "size", "()I");
287 if (env->ExceptionCheck()) return JNI_ERR;
288 jSetToArray = env->GetMethodID(clazz, "toArray", "([Ljava/lang/Object;)[Ljava/lang/Object;");
289 if (env->ExceptionCheck()) return JNI_ERR;
290
291 clazz = env->FindClass("java/lang/Iterable");
292 if (env->ExceptionCheck()) return JNI_ERR;
293 jIterableIterator = env->GetMethodID(clazz, "iterator", "()Ljava/util/Iterator;");
294 if (env->ExceptionCheck()) return JNI_ERR;
295
296 clazz = env->FindClass("java/util/Iterator");
297 if (env->ExceptionCheck()) return JNI_ERR;
298 jIteratorHasNext = env->GetMethodID(clazz, "hasNext", "()Z");
299 if (env->ExceptionCheck()) return JNI_ERR;
300 jIteratorNext = env->GetMethodID(clazz, "next", "()Ljava/lang/Object;");
301 if (env->ExceptionCheck()) return JNI_ERR;
302
303 clazz = env->FindClass("com/sun/glass/ui/gtk/GtkApplication");
304 if (env->ExceptionCheck()) return JNI_ERR;
305 jApplicationCls = (jclass) env->NewGlobalRef(clazz);
306 jApplicationDisplay = env->GetStaticFieldID(jApplicationCls, "display", "J");
307 if (env->ExceptionCheck()) return JNI_ERR;
308 jApplicationScreen = env->GetStaticFieldID(jApplicationCls, "screen", "I");
309 if (env->ExceptionCheck()) return JNI_ERR;
310 jApplicationVisualID = env->GetStaticFieldID(jApplicationCls, "visualID", "J");
311 if (env->ExceptionCheck()) return JNI_ERR;
312 jApplicationReportException = env->GetStaticMethodID(
313 jApplicationCls, "reportException", "(Ljava/lang/Throwable;)V");
314 if (env->ExceptionCheck()) return JNI_ERR;
315 jApplicationGetApplication = env->GetStaticMethodID(
316 jApplicationCls, "GetApplication", "()Lcom/sun/glass/ui/Application;");
317 if (env->ExceptionCheck()) return JNI_ERR;
318 jApplicationGetName = env->GetMethodID(jApplicationCls, "getName", "()Ljava/lang/String;");
319 if (env->ExceptionCheck()) return JNI_ERR;
320
321 // Before doing anything with GTK we validate that the DISPLAY can be opened
322 display = XOpenDisplay(NULL);
323 if (display != NULL) {
324 XCloseDisplay(display);
325 displayValid = JNI_TRUE;
326 } else {
327 // Invalid DISPLAY, skip initialization
328 return JNI_VERSION_1_6;
329 }
330
331 return JNI_VERSION_1_6;
332 }
333
334 void
335 glass_throw_exception(JNIEnv * env,
336 const char * exceptionClass,
337 const char * exceptionMessage) {
338 jclass throwableClass = env->FindClass(exceptionClass);
339 if (check_and_clear_exception(env)) return;
340 env->ThrowNew(throwableClass, exceptionMessage);
341 check_and_clear_exception(env);
342 }
343
344 int
345 glass_throw_oom(JNIEnv * env, const char * message) {
346 glass_throw_exception(env, "java/lang/OutOfMemoryError", message);
347 // must return a non-zero value, see HANDLE_MEM_ALLOC_ERROR
348 return 1;
349 }
350
351
352 guint8* convert_BGRA_to_RGBA(const int* pixels, int stride, int height) {
353 guint8* new_pixels = (guint8*) g_malloc(height * stride);
354 int i = 0;
355
356 for (i = 0; i < height * stride; i += 4) {
357 new_pixels[i] = (guint8)(*pixels >> 16);
358 new_pixels[i + 1] = (guint8)(*pixels >> 8);
359 new_pixels[i + 2] = (guint8)(*pixels);
360 new_pixels[i + 3] = (guint8)(*pixels >> 24);
361 pixels++;
362 }
363
364 return new_pixels;
365 }
366
367
368 void dump_jstring_array(JNIEnv* env, jobjectArray arr) {
369 if (arr == NULL) {
370 LOG0("dump: Array is null\n")
371 return;
372 }
373 jsize len = env->GetArrayLength(arr);
374 LOG1("dump: length = %d\n", len)
375 int i = 0;
376 jboolean isCopy;
377 for(i = 0; i < len; i++) {
378 jstring jstr = (jstring) env->GetObjectArrayElement(arr, i);
379 check_and_clear_exception(env);
380 const char* str = env->GetStringUTFChars(jstr, &isCopy);
381 LOG2("dump: s[%d]: %s\n", i, str)
382 }
383 }
384
385 gboolean check_and_clear_exception(JNIEnv *env) {
386 jthrowable t = env->ExceptionOccurred();
387 if (t) {
388 env->ExceptionClear();
389 env->CallStaticVoidMethod(jApplicationCls, jApplicationReportException, t);
390 //Clear in case our reporting upcall failed too!
391 env->ExceptionClear();
392 return TRUE;
393 }
394 return FALSE;
395 }
396
397 // The returned string should be freed with g_free().
398 gchar* get_application_name() {
399 gchar* ret = NULL;
400
401 jobject japp = mainEnv->CallStaticObjectMethod(jApplicationCls, jApplicationGetApplication);
402 CHECK_JNI_EXCEPTION_RET(mainEnv, NULL);
403 jstring jname = (jstring) mainEnv->CallObjectMethod(japp, jApplicationGetName);
404 CHECK_JNI_EXCEPTION_RET(mainEnv, NULL);
405 if (const gchar *name = mainEnv->GetStringUTFChars(jname, NULL)) {
406 ret = g_strdup(name);
407 mainEnv->ReleaseStringUTFChars(jname, name);
408 }
409 return ret;
410 }
411
412 gpointer glass_try_malloc_n(gsize m, gsize n,
413 gboolean zer0 /* initialized to 0 if true*/) {
414 if (n > 0 && m > G_MAXSIZE / n) {
415 return NULL;
416 }
417 return (zer0)
418 ? g_try_malloc0(m * n)
419 : g_try_malloc(m * n);
420 }
421
422 /*
423 * Since we support glib 2.18 we can't use g_try_malloc_n and g_try_malloc0_n
424 * which was introduced in 2.24.
425 * glass_try_malloc_n and glass_try_malloc0_n is replacement for those functions
426 */
427 gpointer glass_try_malloc0_n(gsize m, gsize n) {
428 return glass_try_malloc_n(m, n, TRUE);
429 }
430
431 gpointer glass_try_malloc_n(gsize m, gsize n) {
432 return glass_try_malloc_n(m, n, FALSE);
433 }
434
435 gsize get_files_count(gchar **uris) {
436 if (!uris) {
437 return 0;
438 }
439
440 guint size = g_strv_length(uris);
441 guint files_cnt = 0;
442
443 for (guint i = 0; i < size; ++i) {
444 if (g_str_has_prefix(uris[i], FILE_PREFIX)) {
445 files_cnt++;
446 }
447 }
448 return files_cnt;
449 }
450
451 // Note: passed uris will be freed by this function
452 jobject uris_to_java(JNIEnv *env, gchar **uris, gboolean files) {
453 if (uris == NULL) {
454 return NULL;
455 }
456
457 jobject result = NULL;
458
459 guint size = g_strv_length(uris);
460 guint files_cnt = get_files_count(uris);
461
462 if (files) {
463 if (files_cnt) {
464 result = env->NewObjectArray(files_cnt, jStringCls, NULL);
465 check_and_clear_exception(env);
466
467 for (gsize i = 0; i < size; ++i) {
468 if (g_str_has_prefix(uris[i], FILE_PREFIX)) {
469 gchar* path = g_filename_from_uri(uris[i], NULL, NULL);
470 jstring str = env->NewStringUTF(path);
471 check_and_clear_exception(env);
472 env->SetObjectArrayElement((jobjectArray) result, i, str);
473 check_and_clear_exception(env);
474 g_free(path);
475 }
476 }
477 }
478 } else if (size - files_cnt) {
479 GString* str = g_string_new(NULL); //http://www.ietf.org/rfc/rfc2483.txt
480
481 for (guint i = 0; i < size; ++i) {
482 if (!g_str_has_prefix(uris[i], FILE_PREFIX)
483 && !g_str_has_prefix(uris[i], URI_LIST_COMMENT_PREFIX)) {
484 g_string_append(str, uris[i]);
485 g_string_append(str, URI_LIST_LINE_BREAK);
486 }
487 }
488
489 if (str->len > 2) {
490 g_string_erase(str, str->len - 2, 2);
491 }
492
493 result = env->NewStringUTF(str->str);
494 check_and_clear_exception(env);
495
496 g_string_free(str, TRUE);
497 }
498 g_strfreev(uris);
499 return result;
500 }