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 JavaVM* javaVM;
122
123 JNIEXPORT jint JNICALL
124 JNI_OnLoad(JavaVM *jvm, void *reserved)
125 {
126 (void)reserved;
127
128 JNIEnv *env;
129 jclass clazz;
130 Display* display;
131
132 javaVM = jvm;
133 if (jvm->GetEnv((void **)&env, JNI_VERSION_1_6)) {
134 return JNI_ERR; /* JNI version not supported */
135 }
136
137 clazz = env->FindClass("java/lang/String");
138 if (env->ExceptionCheck()) return JNI_ERR;
139 jStringCls = (jclass) env->NewGlobalRef(clazz);
140
141 clazz = env->FindClass("java/nio/ByteBuffer");
142 if (env->ExceptionCheck()) return JNI_ERR;
143 jByteBufferCls = (jclass) env->NewGlobalRef(clazz);
144 jByteBufferArray = env->GetMethodID(jByteBufferCls, "array", "()[B");
145 if (env->ExceptionCheck()) return JNI_ERR;
146 jByteBufferWrap = env->GetStaticMethodID(jByteBufferCls, "wrap", "([B)Ljava/nio/ByteBuffer;");
147 if (env->ExceptionCheck()) return JNI_ERR;
148
149 clazz = env->FindClass("java/lang/Runnable");
150 if (env->ExceptionCheck()) return JNI_ERR;
151
152 jRunnableRun = env->GetMethodID(clazz, "run", "()V");
153 if (env->ExceptionCheck()) return JNI_ERR;
154
155 clazz = env->FindClass("java/util/ArrayList");
156 if (env->ExceptionCheck()) return JNI_ERR;
157 jArrayListCls = (jclass) env->NewGlobalRef(clazz);
158 jArrayListInit = env->GetMethodID(jArrayListCls, "<init>", "()V");
159 if (env->ExceptionCheck()) return JNI_ERR;
160 jArrayListAdd = env->GetMethodID(jArrayListCls, "add", "(Ljava/lang/Object;)Z");
161 if (env->ExceptionCheck()) return JNI_ERR;
162 jArrayListGetIdx = env->GetMethodID(jArrayListCls, "get", "(I)Ljava/lang/Object;");
163 if (env->ExceptionCheck()) return JNI_ERR;
164 clazz = env->FindClass("com/sun/glass/ui/Pixels");
165 if (env->ExceptionCheck()) return JNI_ERR;
166 jPixelsAttachData = env->GetMethodID(clazz, "attachData", "(J)V");
167 if (env->ExceptionCheck()) return JNI_ERR;
168
169 clazz = env->FindClass("com/sun/glass/ui/gtk/GtkPixels");
170 if (env->ExceptionCheck()) return JNI_ERR;
171
172 jGtkPixelsCls = (jclass) env->NewGlobalRef(clazz);
173 jGtkPixelsInit = env->GetMethodID(jGtkPixelsCls, "<init>", "(IILjava/nio/ByteBuffer;)V");
174 if (env->ExceptionCheck()) return JNI_ERR;
175
176 clazz = env->FindClass("com/sun/glass/ui/Screen");
177 if (env->ExceptionCheck()) return JNI_ERR;
178 jScreenCls = (jclass) env->NewGlobalRef(clazz);
179 jScreenInit = env->GetMethodID(jScreenCls, "<init>", "(JIIIIIIIIIIIIIIIFFFF)V");
180 if (env->ExceptionCheck()) return JNI_ERR;
181 jScreenNotifySettingsChanged = env->GetStaticMethodID(jScreenCls, "notifySettingsChanged", "()V");
182 if (env->ExceptionCheck()) return JNI_ERR;
183
184 clazz = env->FindClass("com/sun/glass/ui/View");
185 if (env->ExceptionCheck()) return JNI_ERR;
186 jViewNotifyResize = env->GetMethodID(clazz, "notifyResize", "(II)V");
187 if (env->ExceptionCheck()) return JNI_ERR;
188 jViewNotifyMouse = env->GetMethodID(clazz, "notifyMouse", "(IIIIIIIZZ)V");
189 if (env->ExceptionCheck()) return JNI_ERR;
190 jViewNotifyRepaint = env->GetMethodID(clazz, "notifyRepaint", "(IIII)V");
191 if (env->ExceptionCheck()) return JNI_ERR;
192 jViewNotifyKey = env->GetMethodID(clazz, "notifyKey", "(II[CI)V");
193 if (env->ExceptionCheck()) return JNI_ERR;
194 jViewNotifyView = env->GetMethodID(clazz, "notifyView", "(I)V");
195 if (env->ExceptionCheck()) return JNI_ERR;
196 jViewNotifyDragEnter = env->GetMethodID(clazz, "notifyDragEnter", "(IIIII)I");
197 if (env->ExceptionCheck()) return JNI_ERR;
198 jViewNotifyDragOver = env->GetMethodID(clazz, "notifyDragOver", "(IIIII)I");
199 if (env->ExceptionCheck()) return JNI_ERR;
200 jViewNotifyDragDrop = env->GetMethodID(clazz, "notifyDragDrop", "(IIIII)I");
201 if (env->ExceptionCheck()) return JNI_ERR;
202 jViewNotifyDragLeave = env->GetMethodID(clazz, "notifyDragLeave", "()V");
203 if (env->ExceptionCheck()) return JNI_ERR;
204 jViewNotifyScroll = env->GetMethodID(clazz, "notifyScroll", "(IIIIDDIIIIIDD)V");
205 if (env->ExceptionCheck()) return JNI_ERR;
206 jViewNotifyInputMethod = env->GetMethodID(clazz, "notifyInputMethod", "(Ljava/lang/String;[I[I[BIII)V");
207 if (env->ExceptionCheck()) return JNI_ERR;
208 jViewNotifyMenu = env->GetMethodID(clazz, "notifyMenu", "(IIIIZ)V");
209 if (env->ExceptionCheck()) return JNI_ERR;
210 jViewPtr = env->GetFieldID(clazz, "ptr", "J");
211 if (env->ExceptionCheck()) return JNI_ERR;
212
213 clazz = env->FindClass("com/sun/glass/ui/gtk/GtkView");
214 if (env->ExceptionCheck()) return JNI_ERR;
215 jViewNotifyInputMethodDraw = env->GetMethodID(clazz, "notifyInputMethodDraw", "(Ljava/lang/String;III[B)V");
216 if (env->ExceptionCheck()) return JNI_ERR;
217 jViewNotifyInputMethodCaret = env->GetMethodID(clazz, "notifyInputMethodCaret", "(III)V");
218 if (env->ExceptionCheck()) return JNI_ERR;
219 jViewNotifyPreeditMode = env->GetMethodID(clazz, "notifyPreeditMode", "(Z)V");
220 if (env->ExceptionCheck()) return JNI_ERR;
221
222 clazz = env->FindClass("com/sun/glass/ui/Window");
223 if (env->ExceptionCheck()) return JNI_ERR;
224 jWindowNotifyResize = env->GetMethodID(clazz, "notifyResize", "(III)V");
225 if (env->ExceptionCheck()) return JNI_ERR;
226 jWindowNotifyMove = env->GetMethodID(clazz, "notifyMove", "(II)V");
227 if (env->ExceptionCheck()) return JNI_ERR;
228 jWindowNotifyDestroy = env->GetMethodID(clazz, "notifyDestroy", "()V");
229 if (env->ExceptionCheck()) return JNI_ERR;
230 jWindowNotifyClose = env->GetMethodID(clazz, "notifyClose", "()V");
231 if (env->ExceptionCheck()) return JNI_ERR;
232 jWindowNotifyFocus = env->GetMethodID(clazz, "notifyFocus", "(I)V");
233 if (env->ExceptionCheck()) return JNI_ERR;
234 jWindowNotifyFocusDisabled = env->GetMethodID(clazz, "notifyFocusDisabled", "()V");
235 if (env->ExceptionCheck()) return JNI_ERR;
236 jWindowNotifyFocusUngrab = env->GetMethodID(clazz, "notifyFocusUngrab", "()V");
237 if (env->ExceptionCheck()) return JNI_ERR;
238 jWindowNotifyMoveToAnotherScreen = env->GetMethodID(clazz, "notifyMoveToAnotherScreen", "(Lcom/sun/glass/ui/Screen;)V");
239 if (env->ExceptionCheck()) return JNI_ERR;
240 jWindowNotifyLevelChanged = env->GetMethodID(clazz, "notifyLevelChanged", "(I)V");
241 if (env->ExceptionCheck()) return JNI_ERR;
242 jWindowIsEnabled = env->GetMethodID(clazz, "isEnabled", "()Z");
243 if (env->ExceptionCheck()) return JNI_ERR;
244 jWindowNotifyDelegatePtr = env->GetMethodID(clazz, "notifyDelegatePtr", "(J)V");
245 if (env->ExceptionCheck()) return JNI_ERR;
246 jWindowPtr = env->GetFieldID(clazz, "ptr", "J");
247 if (env->ExceptionCheck()) return JNI_ERR;
248
249 clazz = env->FindClass("com/sun/glass/ui/gtk/GtkWindow");
250 if (env->ExceptionCheck()) return JNI_ERR;
251 jGtkWindowNotifyStateChanged =
252 env->GetMethodID(clazz, "notifyStateChanged", "(I)V");
253 if (env->ExceptionCheck()) return JNI_ERR;
254
255 clazz = env->FindClass("com/sun/glass/ui/Clipboard");
256 if (env->ExceptionCheck()) return JNI_ERR;
257 jClipboardContentChanged = env->GetMethodID(clazz, "contentChanged", "()V");
258 if (env->ExceptionCheck()) return JNI_ERR;
259
260 clazz = env->FindClass("com/sun/glass/ui/Cursor");
261 if (env->ExceptionCheck()) return JNI_ERR;
262 jCursorPtr = env->GetFieldID(clazz, "ptr", "J");
263 if (env->ExceptionCheck()) return JNI_ERR;
264
265 clazz = env->FindClass("com/sun/glass/ui/Size");
266 if (env->ExceptionCheck()) return JNI_ERR;
267 jSizeInit = env->GetMethodID(clazz, "<init>", "(II)V");
268 if (env->ExceptionCheck()) return JNI_ERR;
269
270 clazz = env->FindClass("java/util/Map");
271 if (env->ExceptionCheck()) return JNI_ERR;
272 jMapGet = env->GetMethodID(clazz, "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
273 if (env->ExceptionCheck()) return JNI_ERR;
274 jMapKeySet = env->GetMethodID(clazz, "keySet", "()Ljava/util/Set;");
275 if (env->ExceptionCheck()) return JNI_ERR;
276 jMapContainsKey = env->GetMethodID(clazz, "containsKey", "(Ljava/lang/Object;)Z");
277 if (env->ExceptionCheck()) return JNI_ERR;
278
279 clazz = env->FindClass("java/util/HashSet");
280 if (env->ExceptionCheck()) return JNI_ERR;
281 jHashSetCls = (jclass) env->NewGlobalRef(clazz);
282 jHashSetInit = env->GetMethodID(jHashSetCls, "<init>", "()V");
283 if (env->ExceptionCheck()) return JNI_ERR;
284
285 clazz = env->FindClass("java/util/Set");
286 if (env->ExceptionCheck()) return JNI_ERR;
287 jSetAdd = env->GetMethodID(clazz, "add", "(Ljava/lang/Object;)Z");
288 if (env->ExceptionCheck()) return JNI_ERR;
289 jSetSize = env->GetMethodID(clazz, "size", "()I");
290 if (env->ExceptionCheck()) return JNI_ERR;
291 jSetToArray = env->GetMethodID(clazz, "toArray", "([Ljava/lang/Object;)[Ljava/lang/Object;");
292 if (env->ExceptionCheck()) return JNI_ERR;
293
294 clazz = env->FindClass("java/lang/Iterable");
295 if (env->ExceptionCheck()) return JNI_ERR;
296 jIterableIterator = env->GetMethodID(clazz, "iterator", "()Ljava/util/Iterator;");
297 if (env->ExceptionCheck()) return JNI_ERR;
298
299 clazz = env->FindClass("java/util/Iterator");
300 if (env->ExceptionCheck()) return JNI_ERR;
301 jIteratorHasNext = env->GetMethodID(clazz, "hasNext", "()Z");
302 if (env->ExceptionCheck()) return JNI_ERR;
303 jIteratorNext = env->GetMethodID(clazz, "next", "()Ljava/lang/Object;");
304 if (env->ExceptionCheck()) return JNI_ERR;
305
306 clazz = env->FindClass("com/sun/glass/ui/gtk/GtkApplication");
307 if (env->ExceptionCheck()) return JNI_ERR;
308 jApplicationCls = (jclass) env->NewGlobalRef(clazz);
309 jApplicationDisplay = env->GetStaticFieldID(jApplicationCls, "display", "J");
310 if (env->ExceptionCheck()) return JNI_ERR;
311 jApplicationScreen = env->GetStaticFieldID(jApplicationCls, "screen", "I");
312 if (env->ExceptionCheck()) return JNI_ERR;
313 jApplicationVisualID = env->GetStaticFieldID(jApplicationCls, "visualID", "J");
314 if (env->ExceptionCheck()) return JNI_ERR;
315 jApplicationReportException = env->GetStaticMethodID(
316 jApplicationCls, "reportException", "(Ljava/lang/Throwable;)V");
317 if (env->ExceptionCheck()) return JNI_ERR;
318 jApplicationGetApplication = env->GetStaticMethodID(
319 jApplicationCls, "GetApplication", "()Lcom/sun/glass/ui/Application;");
320 if (env->ExceptionCheck()) return JNI_ERR;
321 jApplicationGetName = env->GetMethodID(jApplicationCls, "getName", "()Ljava/lang/String;");
322 if (env->ExceptionCheck()) return JNI_ERR;
323
324 // Before doing anything with GTK we validate that the DISPLAY can be opened
325 display = XOpenDisplay(NULL);
326 if (display != NULL) {
327 XCloseDisplay(display);
328 displayValid = JNI_TRUE;
329 } else {
330 // Invalid DISPLAY, skip initialization
331 return JNI_VERSION_1_6;
332 }
333
334 return JNI_VERSION_1_6;
335 }
336
337 void
338 glass_throw_exception(JNIEnv * env,
339 const char * exceptionClass,
340 const char * exceptionMessage) {
341 jclass throwableClass = env->FindClass(exceptionClass);
342 if (check_and_clear_exception(env)) return;
343 env->ThrowNew(throwableClass, exceptionMessage);
344 check_and_clear_exception(env);
345 }
346
347 int
348 glass_throw_oom(JNIEnv * env, const char * message) {
349 glass_throw_exception(env, "java/lang/OutOfMemoryError", message);
350 // must return a non-zero value, see HANDLE_MEM_ALLOC_ERROR
351 return 1;
352 }
353
354
355 guint8* convert_BGRA_to_RGBA(const int* pixels, int stride, int height) {
356 guint8* new_pixels = (guint8*) g_malloc(height * stride);
357 int i = 0;
358
359 for (i = 0; i < height * stride; i += 4) {
360 new_pixels[i] = (guint8)(*pixels >> 16);
361 new_pixels[i + 1] = (guint8)(*pixels >> 8);
362 new_pixels[i + 2] = (guint8)(*pixels);
363 new_pixels[i + 3] = (guint8)(*pixels >> 24);
364 pixels++;
365 }
366
367 return new_pixels;
368 }
369
370
371 void dump_jstring_array(JNIEnv* env, jobjectArray arr) {
372 if (arr == NULL) {
373 LOG0("dump: Array is null\n")
374 return;
375 }
376 jsize len = env->GetArrayLength(arr);
377 LOG1("dump: length = %d\n", len)
378 int i = 0;
379 jboolean isCopy;
380 for(i = 0; i < len; i++) {
381 jstring jstr = (jstring) env->GetObjectArrayElement(arr, i);
382 check_and_clear_exception(env);
383 const char* str = env->GetStringUTFChars(jstr, &isCopy);
384 LOG2("dump: s[%d]: %s\n", i, str)
385 }
386 }
387
388 gboolean check_and_clear_exception(JNIEnv *env) {
389 jthrowable t = env->ExceptionOccurred();
390 if (t) {
391 env->ExceptionClear();
392 env->CallStaticVoidMethod(jApplicationCls, jApplicationReportException, t);
393 //Clear in case our reporting upcall failed too!
394 env->ExceptionClear();
395 return TRUE;
396 }
397 return FALSE;
398 }
399
400 // The returned string should be freed with g_free().
401 gchar* get_application_name() {
402 gchar* ret = NULL;
403
404 jobject japp = mainEnv->CallStaticObjectMethod(jApplicationCls, jApplicationGetApplication);
405 CHECK_JNI_EXCEPTION_RET(mainEnv, NULL);
406 jstring jname = (jstring) mainEnv->CallObjectMethod(japp, jApplicationGetName);
407 CHECK_JNI_EXCEPTION_RET(mainEnv, NULL);
408 if (const gchar *name = mainEnv->GetStringUTFChars(jname, NULL)) {
409 ret = g_strdup(name);
410 mainEnv->ReleaseStringUTFChars(jname, name);
411 }
412 return ret;
413 }
414
415 gpointer glass_try_malloc_n(gsize m, gsize n,
416 gboolean zer0 /* initialized to 0 if true*/) {
417 if (n > 0 && m > G_MAXSIZE / n) {
418 return NULL;
419 }
420 return (zer0)
421 ? g_try_malloc0(m * n)
422 : g_try_malloc(m * n);
423 }
424
425 /*
426 * Since we support glib 2.18 we can't use g_try_malloc_n and g_try_malloc0_n
427 * which was introduced in 2.24.
428 * glass_try_malloc_n and glass_try_malloc0_n is replacement for those functions
429 */
430 gpointer glass_try_malloc0_n(gsize m, gsize n) {
431 return glass_try_malloc_n(m, n, TRUE);
432 }
433
434 gpointer glass_try_malloc_n(gsize m, gsize n) {
435 return glass_try_malloc_n(m, n, FALSE);
436 }
437
438 gsize get_files_count(gchar **uris) {
439 if (!uris) {
440 return 0;
441 }
442
443 guint size = g_strv_length(uris);
444 guint files_cnt = 0;
445
446 for (guint i = 0; i < size; ++i) {
447 if (g_str_has_prefix(uris[i], FILE_PREFIX)) {
448 files_cnt++;
449 }
450 }
451 return files_cnt;
452 }
453
454 // Note: passed uris will be freed by this function
455 jobject uris_to_java(JNIEnv *env, gchar **uris, gboolean files) {
456 if (uris == NULL) {
457 return NULL;
458 }
459
460 jobject result = NULL;
461
462 guint size = g_strv_length(uris);
463 guint files_cnt = get_files_count(uris);
464
465 if (files) {
466 if (files_cnt) {
467 result = env->NewObjectArray(files_cnt, jStringCls, NULL);
468 check_and_clear_exception(env);
469
470 for (gsize i = 0; i < size; ++i) {
471 if (g_str_has_prefix(uris[i], FILE_PREFIX)) {
472 gchar* path = g_filename_from_uri(uris[i], NULL, NULL);
473 jstring str = env->NewStringUTF(path);
474 check_and_clear_exception(env);
475 env->SetObjectArrayElement((jobjectArray) result, i, str);
476 check_and_clear_exception(env);
477 g_free(path);
478 }
479 }
480 }
481 } else if (size - files_cnt) {
482 GString* str = g_string_new(NULL); //http://www.ietf.org/rfc/rfc2483.txt
483
484 for (guint i = 0; i < size; ++i) {
485 if (!g_str_has_prefix(uris[i], FILE_PREFIX)
486 && !g_str_has_prefix(uris[i], URI_LIST_COMMENT_PREFIX)) {
487 g_string_append(str, uris[i]);
488 g_string_append(str, URI_LIST_LINE_BREAK);
489 }
490 }
491
492 if (str->len > 2) {
493 g_string_erase(str, str->len - 2, 2);
494 }
495
496 result = env->NewStringUTF(str->str);
497 check_and_clear_exception(env);
498
499 g_string_free(str, TRUE);
500 }
501 g_strfreev(uris);
502 return result;
503 }