1 /* 2 * Copyright (c) 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 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 fp_unity_launcher_entry_get_quicklist = dl_symbol("unity_launcher_entry_get_quicklist"); 90 } else { 91 dlclose(unity_libhandle); 92 unity_libhandle = NULL; 93 return FALSE; 94 } 95 return TRUE; 96 } 97 98 void callback(DbusmenuMenuitem* mi, guint ts, jobject data) { 99 JNIEnv* env = (JNIEnv*) JNU_GetEnv(jvm, JNI_VERSION_1_2); 100 (*env)->CallStaticVoidMethod(env, jTaskbarCls, jTaskbarCallback, data); 101 } 102 103 /* 104 * Class: sun_awt_X11_XTaskbarPeer 105 * Method: init 106 * Signature: (Ljava/lang/String;)Z 107 */ 108 JNIEXPORT jboolean JNICALL Java_sun_awt_X11_XTaskbarPeer_init 109 (JNIEnv *env, jclass cls, jstring jname, jint version, jboolean verbose) { 110 jclass clazz; 111 112 jTaskbarCls = (*env)->NewGlobalRef(env, cls); 113 114 CHECK_NULL_RETURN(jTaskbarCallback = 115 (*env)->GetStaticMethodID(env, cls, "menuItemCallback", "(Ljava/awt/MenuItem;)V"), JNI_FALSE); 116 CHECK_NULL_RETURN( 117 clazz = (*env)->FindClass(env, "java/awt/MenuItem"), JNI_FALSE); 118 CHECK_NULL_RETURN( 119 jMenuItemGetLabel = (*env)->GetMethodID(env, clazz, "getLabel", "()Ljava/lang/String;"), JNI_FALSE); 120 121 if (gtk_load(env, version, verbose) && unity_load()) { 122 const gchar* name = (*env)->GetStringUTFChars(env, jname, NULL); 123 if (name) { 124 entry = fp_unity_launcher_entry_get_for_desktop_file(name); 125 (*env)->ReleaseStringUTFChars(env, jname, name); 126 return JNI_TRUE; 127 } 128 } 129 return JNI_FALSE; 130 } 131 132 /* 133 * Class: sun_awt_X11_XTaskbarPeer 134 * Method: runloop 135 * Signature: ()V 136 */ 137 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_runloop 138 (JNIEnv *env, jclass cls) { 139 gtk->gdk_threads_enter(); 140 gtk->gtk_main(); 141 gtk->gdk_threads_leave(); 142 } 143 144 /* 145 * Class: sun_awt_X11_XTaskbarPeer 146 * Method: setBadge 147 * Signature: (JZ)V 148 */ 149 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_setBadge 150 (JNIEnv *env, jobject obj, jlong value, jboolean visible) { 151 gtk->gdk_threads_enter(); 152 fp_unity_launcher_entry_set_count(entry, value); 153 fp_unity_launcher_entry_set_count_visible(entry, visible); 154 DbusmenuMenuitem* m; 155 if (m = fp_unity_launcher_entry_get_quicklist(entry)) { 156 fp_unity_launcher_entry_set_quicklist(entry, m); 157 } 158 gtk->gdk_threads_leave(); 159 } 160 161 /* 162 * Class: sun_awt_X11_XTaskbarPeer 163 * Method: setUrgent 164 * Signature: (Z)V 165 */ 166 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_setUrgent 167 (JNIEnv *env, jobject obj, jboolean urgent) { 168 gtk->gdk_threads_enter(); 169 fp_unity_launcher_entry_set_urgent(entry, urgent); 170 DbusmenuMenuitem* m; 171 if (m = fp_unity_launcher_entry_get_quicklist(entry)) { 172 fp_unity_launcher_entry_set_quicklist(entry, m); 173 } 174 gtk->gdk_threads_leave(); 175 } 176 177 /* 178 * Class: sun_awt_X11_XTaskbarPeer 179 * Method: updateProgress 180 * Signature: (DZ)V 181 */ 182 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_updateProgress 183 (JNIEnv *env, jobject obj, jdouble value, jboolean visible) { 184 gtk->gdk_threads_enter(); 185 fp_unity_launcher_entry_set_progress(entry, value); 186 fp_unity_launcher_entry_set_progress_visible(entry, visible); 187 DbusmenuMenuitem* m; 188 if (m = fp_unity_launcher_entry_get_quicklist(entry)) { 189 fp_unity_launcher_entry_set_quicklist(entry, m); 190 } 191 gtk->gdk_threads_leave(); 192 } 193 194 void deleteGlobalRef(gpointer data) { 195 JNIEnv* env = (JNIEnv*) JNU_GetEnv(jvm, JNI_VERSION_1_2); 196 (*env)->DeleteGlobalRef(env, data); 197 } 198 199 void fill_menu(JNIEnv *env, jobjectArray items) { 200 int index; 201 jsize length = (*env)->GetArrayLength(env, items); 202 for (index = 0; index < length; index++) { 203 jobject elem = (*env)->GetObjectArrayElement(env, items, index); 204 if ((*env)->ExceptionCheck(env)) { 205 break; 206 } 207 elem = (*env)->NewGlobalRef(env, elem); 208 209 globalRefs = gtk->g_list_append(globalRefs, elem); 210 211 jstring jlabel = (jstring) (*env)->CallObjectMethod(env, elem, jMenuItemGetLabel); 212 if (!(*env)->ExceptionCheck(env) && jlabel) { 213 const gchar* label = (*env)->GetStringUTFChars(env, jlabel, NULL); 214 if (label) { 215 DbusmenuMenuitem* mi = fp_dbusmenu_menuitem_new(); 216 if (!strcmp(label, "-")) { 217 fp_dbusmenu_menuitem_property_set(mi, "type", "separator"); 218 } else { 219 fp_dbusmenu_menuitem_property_set(mi, "label", label); 220 } 221 222 (*env)->ReleaseStringUTFChars(env, jlabel, label); 223 fp_dbusmenu_menuitem_child_append(menu, mi); 224 gtk->g_signal_connect_data(mi, "item_activated", 225 G_CALLBACK(callback), elem, NULL, 0); 226 } 227 } 228 } 229 } 230 231 /* 232 * Class: sun_awt_X11_XTaskbarPeer 233 * Method: setNativeMenu 234 * Signature: ([Ljava/awt/MenuItem;)V 235 */ 236 JNIEXPORT void JNICALL Java_sun_awt_X11_XTaskbarPeer_setNativeMenu 237 (JNIEnv *env, jobject obj, jobjectArray items) { 238 239 gtk->gdk_threads_enter(); 240 241 if (!menu) { 242 menu = fp_dbusmenu_menuitem_new(); 243 fp_unity_launcher_entry_set_quicklist(entry, menu); 244 } 245 246 GList* list = fp_dbusmenu_menuitem_take_children(menu); 247 gtk->g_list_free_full(list, gtk->g_object_unref); 248 249 gtk->g_list_free_full(globalRefs, deleteGlobalRef); 250 globalRefs = NULL; 251 252 if (items) { 253 fill_menu(env, items); 254 } 255 256 gtk->gdk_threads_leave(); 257 }