1 /*
2 * Copyright (c) 2015, 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 <dlfcn.h>
27 #include "jvm_md.h"
28 #include <setjmp.h>
29 #include <string.h>
30
31 #include "jni_util.h"
32 #include "awt_Taskbar.h"
33
34
35 extern JavaVM *jvm;
36
37 #define NO_SYMBOL_EXCEPTION 1
38
39 #define UNITY_LIB_VERSIONED VERSIONED_JNI_LIB_NAME("unity", "9")
40 #define UNITY_LIB JNI_LIB_NAME("unity")
41
42 static jmp_buf j;
43
44 static void *unity_libhandle = NULL;
45
46 static DbusmenuMenuitem* menu = NULL;
47 UnityLauncherEntry* entry = NULL;
48
49 static jclass jTaskbarCls = NULL;
50 static jmethodID jTaskbarCallback = NULL;
51 static jmethodID jMenuItemGetLabel = NULL;
52
53 GList* globalRefs = NULL;
54
55 static void* dl_symbol(const char* name) {
56 void* result = dlsym(unity_libhandle, name);
57 if (!result)
58 longjmp(j, NO_SYMBOL_EXCEPTION);
59
60 return result;
61 }
62
63 static gboolean unity_load() {
64 unity_libhandle = dlopen(UNITY_LIB_VERSIONED, RTLD_LAZY | RTLD_LOCAL);
65 if (unity_libhandle == NULL) {
66 unity_libhandle = dlopen(UNITY_LIB, RTLD_LAZY | RTLD_LOCAL);
67 if (unity_libhandle == NULL) {
68 return FALSE;
69 }
70 }
71 if (setjmp(j) == 0) {
72 fp_unity_launcher_entry_get_for_desktop_file = dl_symbol("unity_launcher_entry_get_for_desktop_file");
73 fp_unity_launcher_entry_set_count = dl_symbol("unity_launcher_entry_set_count");
74 fp_unity_launcher_entry_set_count_visible = dl_symbol("unity_launcher_entry_set_count_visible");
75 fp_unity_launcher_entry_set_urgent = dl_symbol("unity_launcher_entry_set_urgent");
76 fp_unity_launcher_entry_set_progress = dl_symbol("unity_launcher_entry_set_progress");
77 fp_unity_launcher_entry_set_progress_visible = dl_symbol("unity_launcher_entry_set_progress_visible");
78
79 fp_dbusmenu_menuitem_new = dl_symbol("dbusmenu_menuitem_new");
80 fp_dbusmenu_menuitem_property_set = dl_symbol("dbusmenu_menuitem_property_set");
81 fp_dbusmenu_menuitem_property_set_int = dl_symbol("dbusmenu_menuitem_property_set_int");
82 fp_dbusmenu_menuitem_property_get_int = dl_symbol("dbusmenu_menuitem_property_get_int");
83 fp_dbusmenu_menuitem_property_set = dl_symbol("dbusmenu_menuitem_property_set");
84 fp_dbusmenu_menuitem_child_append = dl_symbol("dbusmenu_menuitem_child_append");
85 fp_dbusmenu_menuitem_child_delete = dl_symbol("dbusmenu_menuitem_child_delete");
86 fp_dbusmenu_menuitem_take_children = dl_symbol("dbusmenu_menuitem_take_children");
87 fp_dbusmenu_menuitem_foreach = dl_symbol("dbusmenu_menuitem_foreach");
88 fp_unity_launcher_entry_set_quicklist = dl_symbol("unity_launcher_entry_set_quicklist");
89 } else {
90 dlclose(unity_libhandle);
91 unity_libhandle = NULL;
92 return FALSE;
93 }
94 return TRUE;
95 }
96
97 void callback(DbusmenuMenuitem* mi, guint ts, jobject data) {
98 JNIEnv* env = (JNIEnv*) JNU_GetEnv(jvm, JNI_VERSION_1_2);
99 (*env)->CallStaticVoidMethod(env, jTaskbarCls, jTaskbarCallback, data,
100 fp_dbusmenu_menuitem_property_get_int(mi, "toggle-state")
101 ? JNI_FALSE
102 : JNI_TRUE);
103 }
104
105 /*
106 * Class: sun_awt_X11_XTaskbarPeer
107 * Method: init
108 * Signature: (Ljava/lang/String;)Z
109 */
110 JNIEXPORT jboolean JNICALL Java_sun_awt_X11_XTaskbarPeer_init
111 (JNIEnv *env, jclass cls, jstring jname) {
112 jclass clazz;
113
114 jTaskbarCls = (*env)->NewGlobalRef(env, cls);
115
116 CHECK_NULL_RETURN(jTaskbarCallback =
117 (*env)->GetStaticMethodID(env, cls, "menuItemCallback", "(Ljava/awt/MenuItem;)V"), JNI_FALSE);
118 CHECK_NULL_RETURN(
119 clazz = (*env)->FindClass(env, "java/awt/MenuItem"), JNI_FALSE);
120 CHECK_NULL_RETURN(
121 jMenuItemGetLabel = (*env)->GetMethodID(env, clazz, "getLabel", "()Ljava/lang/String;"), JNI_FALSE);
122
123 if (gtk2_load(env) && unity_load()) {
124 const gchar* name = (*env)->GetStringUTFChars(env, jname, NULL);
125 if (name) {
126 entry = fp_unity_launcher_entry_get_for_desktop_file(name);
127 (*env)->ReleaseStringUTFChars(env, jname, name);
128 return JNI_TRUE;
129 }
130 }
131 return JNI_FALSE;
132 }
133
134 /*
135 * Class: sun_awt_X11_XTaskbarPeer
136 * Method: runloop
137 * Signature: ()V
138 */
139 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_runloop
140 (JNIEnv *env, jclass cls) {
141 fp_gdk_threads_enter();
142 fp_gtk_main();
143 fp_gdk_threads_leave();
144 }
145
146 /*
147 * Class: sun_awt_X11_XTaskbarPeer
148 * Method: setBadge
149 * Signature: (JZ)V
150 */
151 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_setBadge
152 (JNIEnv *env, jobject obj, jlong value, jboolean visible) {
153 fp_gdk_threads_enter();
154 fp_unity_launcher_entry_set_count(entry, value);
155 fp_unity_launcher_entry_set_count_visible(entry, visible);
156 fp_gdk_threads_leave();
157 }
158
159 /*
160 * Class: sun_awt_X11_XTaskbarPeer
161 * Method: setUrgent
162 * Signature: (Z)V
163 */
164 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_setUrgent
165 (JNIEnv *env, jobject obj, jboolean urgent) {
166 fp_gdk_threads_enter();
167 fp_unity_launcher_entry_set_urgent(entry, urgent);
168 fp_gdk_threads_leave();
169 }
170
171 /*
172 * Class: sun_awt_X11_XTaskbarPeer
173 * Method: updateProgress
174 * Signature: (DZ)V
175 */
176 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_updateProgress
177 (JNIEnv *env, jobject obj, jdouble value, jboolean visible) {
178 fp_gdk_threads_enter();
179 fp_unity_launcher_entry_set_progress(entry, value);
180 fp_unity_launcher_entry_set_progress_visible(entry, visible);
181 fp_gdk_threads_leave();
182 }
183
184 void deleteGlobalRef(gpointer data) {
185 JNIEnv* env = (JNIEnv*) JNU_GetEnv(jvm, JNI_VERSION_1_2);
186 (*env)->DeleteGlobalRef(env, data);
187 }
188
189 void fill_menu(JNIEnv *env, jobjectArray items) {
190 int index;
191 jsize length = (*env)->GetArrayLength(env, items);
192 for (index = 0; index < length; index++) {
193 jobject elem = (*env)->GetObjectArrayElement(env, items, index);
194 if ((*env)->ExceptionCheck(env)) {
195 break;
196 }
197 elem = (*env)->NewGlobalRef(env, elem);
198
199 globalRefs = fp_g_list_append(globalRefs, elem);
200
201 jstring jlabel = (jstring) (*env)->CallObjectMethod(env, elem, jMenuItemGetLabel);
202 if (!(*env)->ExceptionCheck(env) && jlabel) {
203 const gchar* label = (*env)->GetStringUTFChars(env, jlabel, NULL);
204 if (label) {
205 DbusmenuMenuitem* mi = fp_dbusmenu_menuitem_new();
206 if (!strcmp(label, "-")) {
207 fp_dbusmenu_menuitem_property_set(mi, "type", "separator");
208 } else {
209 fp_dbusmenu_menuitem_property_set(mi, "label", label);
210 }
211
212 (*env)->ReleaseStringUTFChars(env, jlabel, label);
213 fp_dbusmenu_menuitem_child_append(menu, mi);
214 fp_g_signal_connect(mi, "item_activated", G_CALLBACK(callback), elem);
215 }
216 }
217 }
218 }
219
220 /*
221 * Class: sun_awt_X11_XTaskbarPeer
222 * Method: setNativeMenu
223 * Signature: ([Ljava/awt/MenuItem;)V
224 */
225 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_setNativeMenu
226 (JNIEnv *env, jobject obj, jobjectArray items) {
227
228 fp_gdk_threads_enter();
229
230 if (!menu) {
231 menu = fp_dbusmenu_menuitem_new();
232 fp_unity_launcher_entry_set_quicklist(entry, menu);
233 }
234
235 GList* list = fp_dbusmenu_menuitem_take_children(menu);
236 fp_g_list_free_full(list, fp_g_object_unref);
237
238 fp_g_list_free_full(globalRefs, deleteGlobalRef);
239 globalRefs = NULL;
240
241 if (items) {
242 fill_menu(env, items);
243 }
244
245 fp_gdk_threads_leave();
246 }