wpa_gui: Only move to WPS tab if inactive/disconnect and AP ready

This removes many of the cases where moving to the WPS tab can be
undesired. It is really only useful if we are not currently connected
and there is an AP available that would likely be able to provide us
network connectivity with use of WPS (active PBC more or selected
registrar set).

wpa_supplicant/wpa_gui-qt4/wpagui.cpp

@@ -869,7 +869,9 @@ void WpaGui::processMsg(char *msg)
 				"Wi-Fi Protected Setup (WPS) AP\n"
 				"in active PBC mode found.");
 		wpsStatusText->setText("WPS AP in active PBC mode found");
-		wpaguiTab->setCurrentWidget(wpsTab);
+		if (textStatus->text() == "INACTIVE" ||
+		    textStatus->text() == "DISCONNECTED")
+			wpaguiTab->setCurrentWidget(wpsTab);
 		wpsInstructions->setText("Press the PBC button on the screen "
 					 "to start registration");
 	} else if (str_match(pos, WPS_EVENT_AP_AVAILABLE_PIN)) {
@@ -878,13 +880,14 @@ void WpaGui::processMsg(char *msg)
 				" in active PIN mode found.");
 		wpsStatusText->setText("WPS AP with recently selected "
 				       "registrar");
-		wpaguiTab->setCurrentWidget(wpsTab);
+		if (textStatus->text() == "INACTIVE" ||
+		    textStatus->text() == "DISCONNECTED")
+			wpaguiTab->setCurrentWidget(wpsTab);
 	} else if (str_match(pos, WPS_EVENT_AP_AVAILABLE)) {
 		showTrayMessage(QSystemTrayIcon::Information, 3,
 				"Wi-Fi Protected Setup (WPS)\n"
 				"AP detected.");
 		wpsStatusText->setText("WPS AP detected");
-		wpaguiTab->setCurrentWidget(wpsTab);
 	} else if (str_match(pos, WPS_EVENT_OVERLAP)) {
 		showTrayMessage(QSystemTrayIcon::Information, 3,
 				"Wi-Fi Protected Setup (WPS)\n"