tdf#49895: search in Options: check if label exists (related to tdf#157266)

- since ids in ui files can be changed or removed,
we have to check if they are exits or not, to prevent
any crash or misbehavior.
- Proper solution will be iterating over the
widget ids and collecting their strings without
based on a list of identifiers.

Change-Id: I2088af6842ad0acd00838a37295dc2e6140096f2
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/157103
Reviewed-by: Andreas Heinisch <andreas.heinisch@yahoo.de>
Tested-by: Andreas Heinisch <andreas.heinisch@yahoo.de>

1 files changed, 12 insertions, 3 deletions

diff --git a/sw/source/ui/config/mailconfigpage.cxx b/sw/source/ui/config/mailconfigpage.cxx
index 3b8a5ec45568..468d9f761d8a 100644
--- a/sw/source/ui/config/mailconfigpage.cxx
+++ b/sw/source/ui/config/mailconfigpage.cxx
@@ -137,17 +137,26 @@ OUString SwMailConfigPage::GetAllStrings()
                           "label2", "server_label",      "port_label" };
 
     for (const auto& label : labels)
-        sAllStrings += m_xBuilder->weld_label(label)->get_label() + " ";
+    {
+        if (const auto& pString = m_xBuilder->weld_label(label))
+            sAllStrings += pString->get_label() + " ";
+    }
 
     OUString checkButton[] = { "replytocb", "secure" };
 
     for (const auto& check : checkButton)
-        sAllStrings += m_xBuilder->weld_check_button(check)->get_label() + " ";
+    {
+        if (const auto& pString = m_xBuilder->weld_check_button(check))
+            sAllStrings += pString->get_label() + " ";
+    }
 
     OUString buttons[] = { "serverauthentication", "test" };
 
     for (const auto& btn : buttons)
-        sAllStrings += m_xBuilder->weld_button(btn)->get_label() + " ";
+    {
+        if (const auto& pString = m_xBuilder->weld_button(btn))
+            sAllStrings += pString->get_label() + " ";
+    }
 
     return sAllStrings.replaceAll("_", "");
 }