added submenu

example.c

@@ -39,15 +39,23 @@ static void quit_cb(struct tray_menu *item) {
   tray_exit();
 }
 
+static void submenu_cb(struct tray_submenu *item) {
+  (void)item;
+  printf("submenu cb\n");  
+  tray_update(&tray);
+}
+
+//struct tray_submenu *t_sm = (struct tray_submenu[]){{"First",submenu_cb}, {"Second",submenu_cb}, {NULL, NULL},};
+
 static struct tray tray = {
     .icon = TRAY_ICON1,
-    .menu = (struct tray_menu[]){{"Hello", 0, 0, hello_cb, NULL},
-                                 {"Checked", 0, 1, toggle_cb, NULL},
-                                 {"Disabled", 1, 0, NULL, NULL},
-                                 {"-", 0, 0, NULL, NULL},
-                                 {"+", 0, 0, NULL, NULL},
-                                 {"Quit", 0, 0, quit_cb, NULL},
-                                 {NULL, 0, 0, NULL, NULL}},
+    .menu = (struct tray_menu[]){{"Hello",    0, 0, NULL, hello_cb,  NULL},
+                                 {"Checked",  0, 1, NULL, toggle_cb, NULL},
+                                 {"Disabled", 1, 0, NULL,      NULL, NULL},
+                                 {"-",        0, 0, NULL,      NULL, NULL},
+                                 {"SubMenu",  0, 0, (struct tray_submenu[]){{"First",submenu_cb, NULL}, {"Second",submenu_cb, NULL}, {NULL, NULL, NULL},},      NULL, NULL},
+                                 {"Quit",     0, 0, NULL,   quit_cb, NULL},
+                                 {NULL, 0, 0, NULL, NULL, NULL}},
 };
 
 int main() {

tray.h

@@ -8,10 +8,17 @@ struct tray {
   struct tray_menu *menu;
 };
 
+struct tray_submenu {
+  char *text;
+  void (*cb)(struct tray_submenu *);
+  void *context;
+};
+
 struct tray_menu {
   char *text;
   int disabled;
   int checked;
+  struct tray_submenu *submenu;
 
   void (*cb)(struct tray_menu *);
   void *context;
@@ -35,6 +42,12 @@ static void _tray_menu_cb(GtkMenuItem *item, gpointer data) {
   m->cb(m);
 }
 
+static void _tray_submenu_cb(GtkMenuItem *item, gpointer data) {
+  (void)item;
+  struct tray_submenu *s_m = (struct tray_submenu *)data;
+  s_m->cb(s_m);
+}
+
 static int tray_init(struct tray *tray) {
   if (gtk_init_check(0, NULL) == FALSE) {
     return -1;
@@ -55,28 +68,34 @@ static void tray_update(struct tray *tray) {
   GtkMenuShell *menu = (GtkMenuShell *)gtk_menu_new();
   for (struct tray_menu *m = tray->menu; m != NULL && m->text != NULL; m++) {
     GtkWidget *item;
-    if (strcmp(m->text, "+") == 0) {
-      GtkWidget *submenu1 = gtk_menu_new();
-      item = gtk_menu_item_new_with_label("SubMenu1");
-      gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu1); 
-      GtkWidget* submenu1_option;
-      submenu1_option = gtk_menu_item_new_with_label("Submenu option!");
-      gtk_menu_shell_append(GTK_MENU_SHELL(submenu1), submenu1_option);
+    if (m->submenu != NULL) {  
+
+      GtkWidget *submenu = gtk_menu_new();
+      item = gtk_menu_item_new_with_label(m->text);
+      gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu);
+
+      for (struct tray_submenu *s_m = m->submenu; s_m != NULL && s_m->text != NULL; s_m++) {        
+      
+        GtkWidget* submenu_item;
+        submenu_item = gtk_menu_item_new_with_label(s_m->text);
+        gtk_widget_show(submenu_item);
+        gtk_menu_shell_append(GTK_MENU_SHELL(submenu), submenu_item);   
+        if (s_m->cb != NULL) {
+          g_signal_connect(submenu_item, "activate", G_CALLBACK(_tray_submenu_cb), s_m);
         }
-    else {
-      if (strcmp(m->text, "-") == 0) {
+      
+      }      
+    } 
+    else if (strcmp(m->text, "-") == 0) {
       item = gtk_separator_menu_item_new();
     } else {
       item = gtk_check_menu_item_new_with_label(m->text);
       gtk_widget_set_sensitive(item, !m->disabled);
       gtk_check_menu_item_set_active(GTK_CHECK_MENU_ITEM(item), !!m->checked);
     }
-    }
+
     gtk_widget_show(item);
     gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
-
-
-
     if (m->cb != NULL) {
       g_signal_connect(item, "activate", G_CALLBACK(_tray_menu_cb), m);
     }