[libhandy] keypad: Fix symbol condition in entry input filter

[Guido Günther <guidog src gnome org>]

commit 7be6796eba43b2f6de70c36da992580c81c6744d
Author: Alexander Mikhaylenko <exalm7659 gmail com>
Date:   Thu Oct 29 02:44:20 2020 +0500

    keypad: Fix symbol condition in entry input filter
    
    We allow to type *, # and + only when symbols are not visible. That's the
    opposite of what we want.

 src/hdy-keypad.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/hdy-keypad.c b/src/hdy-keypad.c
index 1714d9a8..1246f730 100644
--- a/src/hdy-keypad.c
+++ b/src/hdy-keypad.c
@@ -114,7 +114,7 @@ insert_text_cb (HdyKeypad   *self,
   if (g_ascii_isdigit (*text))
      return;
 
-  if (!priv->symbols_visible && strchr ("#*+", *text))
+  if (priv->symbols_visible && strchr ("#*+", *text))
      return;
 
   g_signal_stop_emission_by_name (editable, "insert-text");