-const char* const TextInputPopup::SIGNAL_PRESSED = "pressed";
-const char* const TextInputPopup::SIGNAL_HIDE_FINISHED = "hide-finished";
-const char* const TextInputPopup::SIGNAL_SHOW_FINISHED = "show-finished";
+namespace
+{
+
+// Signals
+
+const char* const SIGNAL_PRESSED = "pressed";
+const char* const SIGNAL_HIDE_FINISHED = "hide-finished";
+const char* const SIGNAL_SHOW_FINISHED = "show-finished";
+
+}