network: Accept empty passwords if it is not saved

In that case, NM will use gnome-shell to prompt for the password. As
such, the form should validate no matter what password is set.

panels/network/wireless-security/eap-method-leap.c

@@ -55,6 +55,7 @@ static gboolean
 validate (EAPMethod *parent, GError **error)
 {
 	EAPMethodLEAP *self = (EAPMethodLEAP *)parent;
+	NMSettingSecretFlags secret_flags;
 	const char *text;
 	gboolean ret = TRUE;
 
@@ -66,6 +67,12 @@ validate (EAPMethod *parent, GError **error)
 	} else
 		widget_unset_error (GTK_WIDGET (self->username_entry));
 
+	secret_flags = nma_utils_menu_to_secret_flags (GTK_WIDGET (self->password_entry));
+	if (secret_flags & NM_SETTING_SECRET_FLAG_NOT_SAVED) {
+		widget_unset_error (GTK_WIDGET (self->password_entry));
+		return TRUE;
+	}
+
 	text = gtk_entry_get_text (self->password_entry);
 	if (!text || !strlen (text)) {
 		widget_set_error (GTK_WIDGET (self->password_entry));

panels/network/wireless-security/eap-method-tls.c

@@ -79,6 +79,7 @@ validate (EAPMethod *method, GError **error)
 {
 	EAPMethodTLS *self = EAP_METHOD_TLS (method);
 	NMSetting8021xCKFormat format = NM_SETTING_802_1X_CK_FORMAT_UNKNOWN;
+	NMSettingSecretFlags secret_flags;
 	const char *password, *identity;
 	g_autoptr(GError) ca_cert_error = NULL;
 	g_autoptr(GError) private_key_error = NULL;
@@ -115,6 +116,9 @@ validate (EAPMethod *method, GError **error)
 	}
 
 	password = gtk_entry_get_text (self->private_key_password_entry);
+	secret_flags = nma_utils_menu_to_secret_flags (GTK_WIDGET (self->private_key_password_entry));
+	if (secret_flags & NM_SETTING_SECRET_FLAG_NOT_SAVED)
+		password = NULL;
 
 	if (!eap_method_validate_filepicker (GTK_FILE_CHOOSER (self->private_key_button),
 	                                     TYPE_PRIVATE_KEY,

panels/network/wireless-security/ws-leap.c

@@ -56,6 +56,7 @@ static gboolean
 validate (WirelessSecurity *security, GError **error)
 {
 	WirelessSecurityLEAP *self = WS_LEAP (security);
+	NMSettingSecretFlags secret_flags;
 	const char *text;
 	gboolean ret = TRUE;
 
@@ -67,6 +68,12 @@ validate (WirelessSecurity *security, GError **error)
 	} else
 		widget_unset_error (GTK_WIDGET (self->username_entry));
 
+	secret_flags = nma_utils_menu_to_secret_flags (GTK_WIDGET (self->password_entry));
+	if (secret_flags & NM_SETTING_SECRET_FLAG_NOT_SAVED) {
+		widget_unset_error (GTK_WIDGET (self->password_entry));
+		return TRUE;
+	}
+
 	text = gtk_entry_get_text (self->password_entry);
 	if (!text || !strlen (text)) {
 		widget_set_error (GTK_WIDGET (self->password_entry));

panels/network/wireless-security/ws-sae.c

@@ -59,8 +59,16 @@ static gboolean
 validate (WirelessSecurity *security, GError **error)
 {
   WirelessSecuritySAE *self = WS_SAE (security);
+  NMSettingSecretFlags secret_flags;
   const char *key;
 
+  secret_flags = nma_utils_menu_to_secret_flags (GTK_WIDGET (self->password_entry));
+  if (secret_flags & NM_SETTING_SECRET_FLAG_NOT_SAVED)
+    {
+      widget_unset_error (GTK_WIDGET (self->password_entry));
+      return TRUE;
+  }
+
   key = gtk_entry_get_text (self->password_entry);
 
   if (key == NULL || key[0] == '\0')

panels/network/wireless-security/ws-wep-key.c

@@ -98,9 +98,16 @@ static gboolean
 validate (WirelessSecurity *security, GError **error)
 {
 	WirelessSecurityWEPKey *self = WS_WEP_KEY (security);
+	NMSettingSecretFlags secret_flags;
 	const char *key;
 	int i;
 
+	secret_flags = nma_utils_menu_to_secret_flags (GTK_WIDGET (self->key_entry));
+	if (secret_flags & NM_SETTING_SECRET_FLAG_NOT_SAVED) {
+		widget_unset_error (GTK_WIDGET (self->key_entry));
+		return TRUE;
+	}
+
 	key = gtk_entry_get_text (self->key_entry);
 	if (!key) {
 		widget_set_error (GTK_WIDGET (self->key_entry));

panels/network/wireless-security/ws-wpa-psk.c

@@ -59,10 +59,17 @@ static gboolean
 validate (WirelessSecurity *security, GError **error)
 {
 	WirelessSecurityWPAPSK *self = WS_WPA_PSK (security);
+	NMSettingSecretFlags secret_flags;
 	const char *key;
 	gsize len;
 	int i;
 
+	secret_flags = nma_utils_menu_to_secret_flags (GTK_WIDGET (self->password_entry));
+	if (secret_flags & NM_SETTING_SECRET_FLAG_NOT_SAVED) {
+		widget_unset_error (GTK_WIDGET (self->password_entry));
+		return TRUE;
+	}
+
 	key = gtk_entry_get_text (self->password_entry);
 	len = key ? strlen (key) : 0;
 	if ((len < 8) || (len > 64)) {