fix minimize on close

- This code path was broken since we stopped overiding native window control

Change-Id: I77e5570faf731bc73d4b3d98f8fea9a67200fb5d
Tuleap: #276

mainwindow.cpp

@@ -32,6 +32,7 @@
 
 #include "aboutdialog.h"
 #include "mainwindowtoolbar.h"
+#include "settingskey.h"
 
 #ifdef ENABLE_AUTOUPDATE
 #include "winsparkle.h"
@@ -195,3 +196,13 @@ MainWindow::switchNormalMaximize()
     else
         showMaximized();
 }
+
+void
+MainWindow::closeEvent(QCloseEvent* event)
+{
+    QSettings settings;
+    if (settings.value(SettingsKey::closeOrMinimized).toBool()) {
+        this->hide();
+        event->ignore();
+    }
+}

mainwindow.h

@@ -46,18 +46,19 @@ public:
     void createThumbBar();
 
 protected:
-    bool nativeEvent(const QByteArray &eventType, void *message, long *result);
+    bool nativeEvent(const QByteArray& eventType, void* message, long* result);
+    void closeEvent(QCloseEvent* event);
 
 public slots:
     void onRingEvent(const QString& uri);
 
 private slots:
     void trayActivated(QSystemTrayIcon::ActivationReason reason);
-    void onIncomingCall(Call *call);
+    void onIncomingCall(Call* call);
     void switchNormalMaximize();
 
 private:
-    explicit MainWindow(QWidget *parent = 0);
+    explicit MainWindow(QWidget* parent = 0);
      ~MainWindow();
     Ui::MainWindow* ui;
     NavStack* navStack_;