Merge pull request #3118

Also "fix" the problem with not signed sudden6's commit.

PKEv (1):
      feat(chatform): add support for non-local file and samba share links

src/chatlog/chatmessage.cpp

@@ -249,7 +249,9 @@ QString ChatMessage::detectAnchors(const QString &str)
                 "(?:\\b)((www\\.)|(http[s]?|ftp)://)" // (protocol)://(printable - non-special character)
                 // http://ONEORMOREALHPA-DIGIT
                 "\\w+\\S+)" // any other character, lets domains and other
-                "|(?:\\b)(file:///)([\\S| ]*)" //link to a local file, valid until the end of the line
+                // ↓ link to a file, or samba share
+                //   https://en.wikipedia.org/wiki/File_URI_scheme
+                "|(?:\\b)((file|smb)://)([\\S| ]*)"
                 "|(?:\\b)(tox:[a-zA-Z\\d]{76})" //link with full user address
                 "|(?:\\b)(mailto:\\S+@\\S+\\.\\S+)" //@mail link
                 "|(?:\\b)(tox:\\S+@\\S+)"); // starts with `tox` then : and only alpha-digits till the end

src/widget/systemtrayicon.cpp

@@ -99,19 +99,33 @@ SystemTrayIcon::SystemTrayIcon()
 
 SystemTrayIcon::~SystemTrayIcon()
 {
+    // only delete the used backend
+    switch(backendType)
+    {
+    case SystrayBackendType::Qt:
         delete qtIcon;
+        break;
 #ifdef ENABLE_SYSTRAY_UNITY_BACKEND
+    case SystrayBackendType::Unity:
         delete unityIndicator;
         delete unityMenu;
+        break;
 #endif
 #ifdef ENABLE_SYSTRAY_STATUSNOTIFIER_BACKEND
+    case SystrayBackendType::StatusNotifier:
         delete statusNotifier;
         delete snMenu;
+        break;
 #endif
 #ifdef ENABLE_SYSTRAY_GTK_BACKEND
+    case SystrayBackendType::GTK:
         delete gtkIcon;
         delete gtkMenu;
+        break;
 #endif
+    default:
+        qWarning() << "Unknown Systray Backend Type";
+    }
     qDebug() << "Deleting SystemTrayIcon";
 }