From e69859dc72aa30fe89cfc593c9d35fa67f632754 Mon Sep 17 00:00:00 2001
From: Alfredo Ramos <alfredo.ramos.sanchez@gmail.com>
Date: Sun, 13 May 2018 16:46:17 -0500
Subject: [PATCH] Fix config export (#220)

If the user presses the Cancel button using the QFileDialog::getSaveFileName() modal file dialog, it will return null string.

Adding this condition will prevent to show an error when trying to write to disk using an invalid filename.
---
 src/config/geneneralconf.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/config/geneneralconf.cpp b/src/config/geneneralconf.cpp
index d34b5ff0..3534d414 100644
--- a/src/config/geneneralconf.cpp
+++ b/src/config/geneneralconf.cpp
@@ -100,6 +100,12 @@ void GeneneralConf::importConfiguration() {
 void GeneneralConf::exportFileConfiguration() {
     QString fileName = QFileDialog::getSaveFileName(this, tr("Save File"),
                                "flameshot.conf");
+
+    // Cancel button
+    if (fileName.isNull()) {
+        return;
+    }
+
     QFile targetFile(fileName);
     if (targetFile.exists()) {
         targetFile.remove();