From a80c415fc09fed34c7a84e77325e5e18ceb6795f Mon Sep 17 00:00:00 2001
From: Louis-Bertrand Varin <louisbvarin@gmail.com>
Date: Thu, 26 Jan 2017 18:38:50 -0500
Subject: [PATCH] Disable buttonGenerate when no classes.

---
 src/gui/PasswordGeneratorWidget.cpp | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/src/gui/PasswordGeneratorWidget.cpp b/src/gui/PasswordGeneratorWidget.cpp
index 6495d83a2..d61528f9f 100644
--- a/src/gui/PasswordGeneratorWidget.cpp
+++ b/src/gui/PasswordGeneratorWidget.cpp
@@ -132,8 +132,10 @@ void PasswordGeneratorWidget::updatePasswordStrength(const QString& password)
 
 void PasswordGeneratorWidget::generatePassword()
 {
-    QString password = m_generator->generatePassword();
-    m_ui->editNewPassword->setText(password);
+    if (m_generator->isValid()) {
+        QString password = m_generator->generatePassword();
+        m_ui->editNewPassword->setText(password);
+    }
 }
 
 void PasswordGeneratorWidget::applyPassword()
@@ -279,5 +281,12 @@ void PasswordGeneratorWidget::updateGenerator()
     m_generator->setCharClasses(classes);
     m_generator->setFlags(flags);
 
+    if (m_generator->isValid()) {
+        m_ui->buttonGenerate->setEnabled(true);
+    }
+    else {
+        m_ui->buttonGenerate->setEnabled(false);
+    }
+
     regeneratePassword();
 }