From b2d95f471eed6e1ad00a198ceffac7a8b53202b4 Mon Sep 17 00:00:00 2001
From: Klaus Basan <klaus.basan@klausbasan.de>
Date: Tue, 25 Apr 2017 14:39:18 +0200
Subject: [PATCH] Ref T41, download dialog available for all swift UI
 applications

---
 src/blackgui/guiapplication.cpp | 27 +++++++++++++++++++++++++++
 src/blackgui/guiapplication.h   | 16 +++++++++++++++-
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/src/blackgui/guiapplication.cpp b/src/blackgui/guiapplication.cpp
index fdd6792b6..09cda8c72 100644
--- a/src/blackgui/guiapplication.cpp
+++ b/src/blackgui/guiapplication.cpp
@@ -11,6 +11,7 @@
 #include "blackcore/context/contextnetwork.h"
 #include "blackcore/data/globalsetup.h"
 #include "blackgui/components/applicationclosedialog.h"
+#include "blackgui/components/downloadandinstalldialog.h"
 #include "blackgui/guiapplication.h"
 #include "blackgui/guiutility.h"
 #include "blackgui/registermetadata.h"
@@ -386,6 +387,10 @@ namespace BlackGui
                 QDesktopServices::openUrl(QUrl::fromLocalFile(path));
             }
         });
+
+        a = menu.addAction(CIcons::swift24(), "Check for updates");
+        c = connect(a, &QAction::triggered, this, &CGuiApplication::checkNewVersion);
+
         Q_ASSERT_X(c, Q_FUNC_INFO, "Connect failed");
         Q_UNUSED(c);
     }
@@ -622,6 +627,28 @@ namespace BlackGui
         return true;
     }
 
+    void CGuiApplication::checkNewVersion()
+    {
+        if (!m_installDialog)
+        {
+            // without parent stylesheet is not inherited
+            m_installDialog = new CDownloadAndInstallDialog(this->mainApplicationWindow());
+        }
+
+        if (!m_installDialog->isNewVersionAvailable()) return;
+        const int result = m_installDialog->exec();
+        if (result != QDialog::Accepted) { return; }
+    }
+
+    void CGuiApplication::triggerNewVersionCheck(int delayedMs)
+    {
+        QTimer::singleShot(delayedMs, this, [ = ]
+        {
+            if (this->m_installDialog) { return; }
+            this->checkNewVersion();
+        });
+    }
+
     void CGuiApplication::settingsChanged()
     {
         // changing widget style is slow, so I try to prevent setting it when nothing changed
diff --git a/src/blackgui/guiapplication.h b/src/blackgui/guiapplication.h
index 8fb9838a2..32770f630 100644
--- a/src/blackgui/guiapplication.h
+++ b/src/blackgui/guiapplication.h
@@ -35,7 +35,14 @@ class QWidget;
 class QMainWindow;
 
 namespace BlackMisc { class CLogCategoryList; }
-namespace BlackGui  { namespace Components { class CApplicationCloseDialog; }}
+namespace BlackGui
+{
+    namespace Components
+    {
+        class CApplicationCloseDialog;
+        class CDownloadAndInstallDialog;
+    }
+}
 namespace BlackGui
 {
     /*!
@@ -154,6 +161,9 @@ namespace BlackGui
         //! Show close dialog
         QDialog::DialogCode showCloseDialog(QMainWindow *mainWindow, QCloseEvent *closeEvent);
 
+        //! Trigger new version check
+        void triggerNewVersionCheck(int delayedMs);
+
         //! Set icon
         //! \note Pixmap requires a valid QApplication, so it cannot be passed as constructor parameter
         static void setWindowIcon(const QPixmap &icon);
@@ -192,11 +202,15 @@ namespace BlackGui
         //! Handle paring of special GUI cmd arguments
         virtual bool parsingHookIn() override;
 
+        //! Check for a new version (update)
+        void checkNewVersion();
+
         //! Register metadata
         static void registerMetadata();
 
     private:
         QPixmap m_windowIcon;
+        BlackGui::Components::CDownloadAndInstallDialog *m_installDialog = nullptr; //!< software installation dialog
         QCommandLineOption m_cmdWindowStateMinimized { "empty" }; //!< window state (minimized)
         QCommandLineOption m_cmdWindowMode { "empty" };           //!< window mode (flags: frameless ...)
         CStyleSheetUtility m_styleSheetUtility{{}, this};         //!< style sheet utility