refs #693, integrated GUI close dialog

* utility function in CGuiApplication containing the logic (dialog needed, ..)
* closeEvent function

src/blackcore/application.cpp

@@ -217,6 +217,8 @@ namespace BlackCore
                 CLogMessage::preformatted(m);
             }
 
+            // Settings are distributed via DBus. So only one application is responsible for saving. `enableLocalSave()` means
+            // "this is the application responsible for saving". If swiftgui requests a setting to be saved, it is sent to swiftcore and saved by swiftcore.
             CSettingsCache::instance()->enableLocalSave();
         }
 
@@ -344,6 +346,34 @@ namespace BlackCore
         return env;
     }
 
+    bool CApplication::hasUnsavedSettings() const
+    {
+        return !this->getAllUnsavedSettings().isEmpty();
+    }
+
+    void CApplication::setSettingsAutoSave(bool autoSave)
+    {
+        this->m_autoSaveSettings = autoSave;
+    }
+
+    QStringList CApplication::getAllUnsavedSettings() const
+    {
+        return CSettingsCache::instance()->getAllUnsavedKeys();
+    }
+
+    CStatusMessage CApplication::saveSettingsByKey(const QStringList &keys)
+    {
+        if (keys.isEmpty()) { return CStatusMessage(); }
+        if (this->supportsContexts())
+        {
+            return this->getIContextApplication()->saveSettingsByKey(keys);
+        }
+        else
+        {
+            return CSettingsCache::instance()->saveToStore(keys);
+        }
+    }
+
     QString CApplication::getInfoString(const QString &separator) const
     {
         QString str(CVersion::version());
@@ -604,7 +634,7 @@ namespace BlackCore
         CStatusMessage m;
         if (this->m_parsed)
         {
-            if (this->supportsContexts())
+            if (this->supportsContexts() && this->m_autoSaveSettings)
             {
                 // this will eventually also call saveToStore
                 m = this->getIContextApplication()->saveSettings();

src/blackcore/application.h

@@ -161,6 +161,18 @@ namespace BlackCore
         //! To string
         QString getInfoString(const QString &separator) const;
 
+        //! Unsaved settings
+        bool hasUnsavedSettings() const;
+
+        //! Automatically and always save settings
+        void setSettingsAutoSave(bool autoSave);
+
+        //! All unsave settings
+        QStringList getAllUnsavedSettings() const;
+
+        //! Save all settings
+        BlackMisc::CStatusMessage saveSettingsByKey(const QStringList &keys);
+
         //! Run event loop
         static int exec();
 
@@ -226,6 +238,8 @@ namespace BlackCore
         //! @{
 
         //! Supports contexts
+        //! \remark checks the real availability of the contexts, so it can happen that we want to use contexts, and they are not yet initialized (false here)
+        //! \sa m_useContexts we use or we will use contexts
         bool supportsContexts() const;
 
         //! Init the contexts part and start core facade
@@ -402,6 +416,8 @@ namespace BlackCore
         bool                                     m_signalStartup = true;   //!< signal startup automatically
         bool                                     m_devEnv = false;         //!< dev. environment
         bool                                     m_unitTest = false;       //!< is UNIT test
+        bool                                     m_autoSaveSettings = true;//!< automatically saving all settings
+
     };
 } // namespace
 

src/blackgui/guiapplication.cpp

@@ -10,6 +10,7 @@
 #include "blackconfig/buildconfig.h"
 #include "blackcore/data/globalsetup.h"
 #include "blackcore/data/updateinfo.h"
+#include "blackgui/components/applicationclosedialog.h"
 #include "blackgui/guiapplication.h"
 #include "blackgui/guiutility.h"
 #include "blackgui/registermetadata.h"
@@ -23,6 +24,7 @@
 #include "blackmisc/verify.h"
 
 #include <QAction>
+#include <QCloseEvent>
 #include <QApplication>
 #include <QCommandLineParser>
 #include <QCoreApplication>
@@ -40,11 +42,13 @@
 #include <QStyle>
 #include <QUrl>
 #include <QWidget>
+#include <QMainWindow>
 #include <QtGlobal>
 
 using namespace BlackConfig;
 using namespace BlackMisc;
 using namespace BlackMisc::Network;
+using namespace BlackGui::Components;
 using namespace BlackCore::Data;
 
 BlackGui::CGuiApplication *sGui = nullptr; // set by constructor
@@ -486,12 +490,33 @@ namespace BlackGui
         return m_styleSheetUtility.updateFonts(fontFamily, fontSize, fontStyle, fontWeight, fontColor);
     }
 
+    QDialog::DialogCode CGuiApplication::showCloseDialog(QMainWindow *mainWindow, QCloseEvent *closeEvent)
+    {
+        bool needsDialog = this->hasUnsavedSettings();
+        if (!needsDialog) { return QDialog::Accepted; }
+        if (!this->m_closeDialog)
+        {
+            this->m_closeDialog = new CApplicationCloseDialog(mainWindow);
+            if (mainWindow && !mainWindow->windowTitle().isEmpty())
+            {
+                this->setSettingsAutoSave(false); // will be handled by dialog
+                this->m_closeDialog->setWindowTitle(mainWindow->windowTitle());
+                this->m_closeDialog->setModal(true);
+            }
+        }
+        const QDialog::DialogCode c = static_cast<QDialog::DialogCode>(this->m_closeDialog->exec());
+        if (c == QDialog::Rejected)
+        {
+            if (closeEvent) { closeEvent->ignore(); }
+        }
+        return c;
+    }
+
     void CGuiApplication::cmdLineHelpMessage()
     {
         if (CBuildConfig::isRunningOnWindowsNtPlatform())
         {
-            QMessageBox::information(nullptr,
+            QMessageBox::information(nullptr, QGuiApplication::applicationDisplayName(),
-                                     QGuiApplication::applicationDisplayName(),
                                      "<html><head/><body><pre>" + this->m_parser.helpText() + "</pre></body></html>");
         }
         else
@@ -504,8 +529,7 @@ namespace BlackGui
     {
         if (CBuildConfig::isRunningOnWindowsNtPlatform())
         {
-            QMessageBox::information(nullptr,
+            QMessageBox::information(nullptr, QGuiApplication::applicationDisplayName(),
-                                     QGuiApplication::applicationDisplayName(),
                                      QGuiApplication::applicationDisplayName() + ' ' + QCoreApplication::applicationVersion());
         }
         else
@@ -518,5 +542,4 @@ namespace BlackGui
     {
         return true;
     }
-
 } // ns

src/blackgui/guiapplication.h

@@ -21,6 +21,7 @@
 #include "blackmisc/statusmessage.h"
 
 #include <QCommandLineOption>
+#include <QDialog>
 #include <QObject>
 #include <QPixmap>
 #include <QScopedPointer>
@@ -30,9 +31,10 @@
 class QMenu;
 class QSplashScreen;
 class QWidget;
+class QMainWindow;
 
 namespace BlackMisc { class CLogCategoryList; }
-
+namespace BlackGui  { namespace Components { class CApplicationCloseDialog; }}
 namespace BlackGui
 {
     /*!
@@ -138,6 +140,9 @@ namespace BlackGui
         //! Update the fonts
         bool updateFonts(const QString &fontFamily, const QString &fontSize, const QString &fontStyle, const QString &fontWeight, const QString &fontColor);
 
+        //! Show close dialog
+        QDialog::DialogCode showCloseDialog(QMainWindow *mainWindow, QCloseEvent *closeEvent);
+
         //! Set icon
         //! \note Pixmap requires a valid QApplication, so it cannot be passed as constructor parameter
         static void setWindowIcon(const QPixmap &icon);
@@ -184,8 +189,9 @@ namespace BlackGui
         QCommandLineOption m_cmdWindowStateMinimized { "empty" }; //!< window state (minimized)
         QCommandLineOption m_cmdWindowMode { "empty" };           //!< window mode (flags: frameless ...)
         CStyleSheetUtility m_styleSheetUtility{{}, this};         //!< style sheet utility
-        QScopedPointer<QSplashScreen> m_splashScreen;             //!< splash screen
         bool m_uiSetupCompleted = false;                          //!< ui setup completed
+        QScopedPointer<QSplashScreen> m_splashScreen;             //!< splash screen
+        BlackGui::Components::CApplicationCloseDialog *m_closeDialog = nullptr; //!< close dialog (no QScopedPointer because I need to set parent)
 
         //! Qt help message to formatted HTML
         static QString beautifyHelpMessage(const QString &helpText);

src/swiftdata/swiftdata.cpp

@@ -58,6 +58,16 @@ void CSwiftData::initStyleSheet()
 CSwiftData::~CSwiftData()
 { }
 
+void CSwiftData::closeEvent(QCloseEvent *event)
+{
+    if (sGui)
+    {
+        // save settings
+        if (sGui->showCloseDialog(this, event) == QDialog::Rejected) { return; }
+    }
+    this->performGracefulShutdown();
+}
+
 void CSwiftData::ps_appendLogMessage(const CStatusMessage &message)
 {
     CLogComponent *logComponent = ui->comp_MainInfoArea->getLogComponent();

src/swiftdata/swiftdata.h

@@ -46,6 +46,12 @@ public:
     //! Destructor
     ~CSwiftData();
 
+protected:
+    //! \name QMainWindow events
+    //! @[
+    virtual void closeEvent(QCloseEvent *event) override;
+    //! @}
+
 private slots:
     //! Append log message
     void ps_appendLogMessage(const BlackMisc::CStatusMessage &message);

src/swiftguistandard/swiftguistd.cpp

@@ -131,9 +131,20 @@ void SwiftGuiStd::performGracefulShutdown()
 
 void SwiftGuiStd::closeEvent(QCloseEvent *event)
 {
-    Q_UNUSED(event);
+    if (sGui)
+    {
+        if (sGui->getIContextNetwork() && sGui->getIContextNetwork()->isConnected())
+        {
+            // we do not just logoff, but give the user a chance to respond
+            event->ignore();
+            QTimer::singleShot(500, this, &SwiftGuiStd::ps_loginRequested);
+            return;
+        }
+
+        // save settings
+        if (sGui->showCloseDialog(this, event) == QDialog::Rejected) { return; }
+    }
     this->performGracefulShutdown();
-    CGuiApplication::exit();
 }
 
 void SwiftGuiStd::changeEvent(QEvent *event)

src/swiftguistandard/swiftguistd.h

@@ -80,17 +80,14 @@ signals:
     void currentMainInfoAreaChanged(const QWidget *currentWidget);
 
 protected:
-    //! \copydoc QMainWindow::mouseMoveEvent
+
+    //! \name QMainWindow events
+    //! @[
     virtual void mouseMoveEvent(QMouseEvent *event) override;
-
-    //! \copydoc QMainWindow::mousePressEvent
     virtual void mousePressEvent(QMouseEvent *event) override;
-
-    //! \copydoc QMainWindow::closeEvent
     virtual void closeEvent(QCloseEvent *event) override;
-
-    //! \copydoc QMainWindow::changeEvent
     virtual void changeEvent(QEvent *event) override;
+    //! @}
 
     //! Get a minimize action which minimizes the window
     QAction *getWindowMinimizeAction(QObject *parent);