From 94f07c85ee99c9cc94e144245fb97bedd0a38771 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Mon, 22 Aug 2016 18:58:10 +0200
Subject: [PATCH] Define shortcuts for Save & Discard buttons of message box
 that appears when closing a document

---
 src/Gui/Document.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/Gui/Document.cpp b/src/Gui/Document.cpp
index 5a2f4ba67..15406bdc3 100644
--- a/src/Gui/Document.cpp
+++ b/src/Gui/Document.cpp
@@ -24,10 +24,12 @@
 #include "PreCompiled.h"
 
 #ifndef _PreComp_
+# include <QAbstractButton>
 # include <qapplication.h>
 # include <qdir.h>
 # include <qfileinfo.h>
 # include <QGLWidget>
+# include <QKeySequence>
 # include <qmessagebox.h>
 # include <qstatusbar.h>
 # include <boost/signals.hpp>
@@ -1203,6 +1205,22 @@ bool Document::canClose ()
         box.setInformativeText(QObject::tr("If you don't save, your changes will be lost."));
         box.setStandardButtons(QMessageBox::Discard | QMessageBox::Cancel | QMessageBox::Save);
         box.setDefaultButton(QMessageBox::Save);
+        box.setEscapeButton(QMessageBox::Cancel);
+
+        // add shortcuts
+        QAbstractButton* saveBtn = box.button(QMessageBox::Save);
+        if (saveBtn->shortcut().isEmpty()) {
+            QString text = saveBtn->text();
+            text.prepend(QLatin1Char('&'));
+            saveBtn->setShortcut(QKeySequence::mnemonic(text));
+        }
+
+        QAbstractButton* discardBtn = box.button(QMessageBox::Discard);
+        if (discardBtn->shortcut().isEmpty()) {
+            QString text = discardBtn->text();
+            text.prepend(QLatin1Char('&'));
+            discardBtn->setShortcut(QKeySequence::mnemonic(text));
+        }
 
         switch (box.exec())
         {