Added language blocking function

source/libublsettings-gtk3-menu.c

@@ -3,10 +3,9 @@
 // rmb menu section
 typedef int (*RmbCheck)(void*);
 
-gboolean on_rmb_menu_open(GtkWidget *self,GdkEventButton *event, rmb_menu_window *window){
+gboolean on_rmb_menu_open(GtkWidget *,GdkEventButton *event, rmb_menu_window *window){
     int (*func)(void*) = (RmbCheck)(window->show_function);
     if (!func||func(window->show_data)){
-        if (self){};
         if (event->button==3){
 
             gtk_widget_show_all(window->menu);

source/libublsettings-gtk3-misc.c

@@ -301,6 +301,32 @@ void yon_gtk_entry_block_restricted_symbols(GtkEntry *target){
     g_signal_connect(G_OBJECT(target),"insert-text",G_CALLBACK(yon_on_insert_restricted_check),NULL);
 }
 
+void yon_on_insert_languages(GtkEditable *editable, const gchar *text, gint length, gint *position, gpointer){
+        gchar *new_text = g_new(gchar, length + 1);
+    gint i, j = 0;
+
+    for (i = 0; i < length; i++) {
+        if (text[i]>=0) {
+            new_text[j] = text[i];
+            j++;
+        }
+    }
+
+    if (j < length) {
+        g_signal_handlers_block_by_func(editable, G_CALLBACK(yon_on_insert_restricted_check), NULL);
+        gtk_editable_insert_text(editable, new_text, j, position);
+        g_signal_handlers_unblock_by_func(editable, G_CALLBACK(yon_on_insert_restricted_check), NULL);
+        g_signal_stop_emission_by_name(editable, "insert-text");
+    }
+
+    g_free(new_text);
+}
+
+void yon_gtk_entry_block_languages(GtkEntry *target){
+    g_return_if_fail(GTK_IS_ENTRY(target));
+    g_signal_connect(G_OBJECT(target),"insert-text",G_CALLBACK(yon_on_insert_languages),NULL);
+}
+
 void yon_on_insert_custom_restricted_check(GtkEditable *editable, const gchar *text, gint length, gint *position, char *symbols){
         gchar *new_text = g_new(gchar, length + 1);
     gint i, j = 0;

source/libublsettings-gtk3.h

@@ -499,6 +499,8 @@ void yon_on_text_insert_only_digits(GtkEditable *editable, const gchar *text, gi
 
 void yon_gtk_entry_block_restricted_symbols(GtkEntry *target);
 
+void yon_gtk_entry_block_languages(GtkEntry *target);
+
 void yon_gtk_entry_block_symbols(GtkEntry *target, char *symbols);
 
 // GtkTreeStore section