refactor(Nexus): Remove Nexus::getDesktopGUI

Remove ProfileImporter's dependence on Widget, on path towards removing
Nexus singleton.

src/appmanager.cpp

@@ -166,7 +166,6 @@ AppManager::AppManager(int argc, char** argv)
     , messageBoxManager(new MessageBoxManager(nullptr))
     , settings(new Settings(*messageBoxManager))
     , ipc(new IPC(settings->getCurrentProfileId()))
-    , toxSave(new ToxSave(*settings, *ipc))
 {
 }
 
@@ -392,15 +391,14 @@ int AppManager::run()
     if (ipc->isAttached()) {
         // Start to accept Inter-process communication
         ipc->registerEventHandler("uri", &toxURIEventHandler, uriDialog.get());
-        ipc->registerEventHandler(ToxSave::eventHandlerKey, &ToxSave::toxSaveEventHandler, toxSave.get());
-        nexus.registerActivate();
+        nexus.registerIpcHandlers();
     }
 
     // Event was not handled by already running instance therefore we handle it ourselves
     if (eventType == "uri") {
         uriDialog->handleToxURI(firstParam);
     } else if (eventType == ToxSave::eventHandlerKey) {
-        toxSave->handleToxSave(firstParam);
+        nexus.handleToxSave(firstParam);
     }
 
     connect(qapp.get(), &QApplication::aboutToQuit, this, &AppManager::cleanup);

src/appmanager.h

@@ -25,7 +25,6 @@
 
 class MessageBoxManager;
 class Settings;
-class ToxSave;
 class IPC;
 class QApplication;
 class ToxURIDialog;
@@ -47,6 +46,5 @@ private:
     std::unique_ptr<MessageBoxManager> messageBoxManager;
     std::unique_ptr<Settings> settings;
     std::unique_ptr<IPC> ipc;
-    std::unique_ptr<ToxSave> toxSave;
     std::unique_ptr<ToxURIDialog> uriDialog;
 };

src/nexus.cpp

@@ -331,15 +331,6 @@ void Nexus::setParser(QCommandLineParser* parser_)
     parser = parser_;
 }
 
-/**
- * @brief Get desktop GUI widget.
- * @return nullptr if not started, desktop widget otherwise.
- */
-Widget* Nexus::getDesktopGUI()
-{
-    return getInstance().widget;
-}
-
 CameraSource& Nexus::getCameraSource()
 {
     return *getInstance().cameraSource;
@@ -355,9 +346,15 @@ void Nexus::setIpc(IPC* ipc_)
     ipc = ipc_;
 }
 
-void Nexus::registerActivate()
+void Nexus::registerIpcHandlers()
+{
+    widget->registerIpcHandlers();
+}
+
+bool Nexus::handleToxSave(const QString& path)
 {
-    widget->registerActivate();
+    assert(widget);
+    return widget->handleToxSave(path);
 }
 
 #ifdef Q_OS_MAC

src/nexus.h

@@ -59,10 +59,9 @@ public:
     static Nexus& getInstance();
     static void destroyInstance();
     Profile* getProfile();
-    static Widget* getDesktopGUI();
     static CameraSource& getCameraSource();
-    void registerActivate();
-
+    void registerIpcHandlers();
+    bool handleToxSave(const QString& path);
 
 #ifdef Q_OS_MAC
 public:

src/persistence/toxsave.cpp

@@ -28,9 +28,10 @@
 
 const QString ToxSave::eventHandlerKey = QStringLiteral("save");
 
-ToxSave::ToxSave(Settings& settings_, IPC& ipc_)
+ToxSave::ToxSave(Settings& settings_, IPC& ipc_, QWidget* parent_)
     : settings{settings_}
     , ipc{ipc_}
+    , parent{parent_}
 {}
 
 ToxSave::~ToxSave()
@@ -58,6 +59,6 @@ bool ToxSave::toxSaveEventHandler(const QByteArray& eventData, void* userData)
  */
 bool ToxSave::handleToxSave(const QString& path)
 {
-    ProfileImporter importer(settings, Nexus::getDesktopGUI());
+    ProfileImporter importer(settings, parent);
     return importer.importProfile(path);
 }

src/persistence/toxsave.h

@@ -24,12 +24,13 @@ class QByteArray;
 class Settings;
 class IPC;
 class QString;
+class QWidget;
 
 class ToxSave
 {
 public:
     const static QString eventHandlerKey;
-    ToxSave(Settings& settings, IPC& ipc);
+    ToxSave(Settings& settings, IPC& ipc, QWidget* parent);
     ~ToxSave();
     bool handleToxSave(const QString& path);
     static bool toxSaveEventHandler(const QByteArray& eventData, void* userData);
@@ -37,4 +38,5 @@ public:
 private:
     Settings& settings;
     IPC& ipc;
+    QWidget* parent;
 };

src/widget/widget.cpp

@@ -81,6 +81,7 @@
 #include "src/widget/tool/messageboxmanager.h"
 #include "tool/removechatdialog.h"
 #include "src/persistence/smileypack.h"
+#include "src/persistence/toxsave.h"
 #include "src/ipc.h"
 
 namespace {
@@ -99,6 +100,7 @@ bool tryRemoveFile(const QString& filepath)
 }
 
 const QString activateHandlerKey("activate");
+const QString saveHandlerKey("save");
 
 } // namespace
 
@@ -162,6 +164,7 @@ Widget::Widget(Profile &profile_, IAudioControl& audio_, CameraSource& cameraSou
     , groupList(new GroupList())
     , contentDialogManager(new ContentDialogManager(*friendList))
     , ipc{ipc_}
+    , toxSave(new ToxSave{settings, ipc, this})
 {
     installEventFilter(this);
     QString locale = settings.getTranslation();
@@ -2757,7 +2760,13 @@ void Widget::formatWindowTitle(const QString& content)
     }
 }
 
-void Widget::registerActivate()
+void Widget::registerIpcHandlers()
 {
     ipc.registerEventHandler(activateHandlerKey, &toxActivateEventHandler, this);
+    ipc.registerEventHandler(saveHandlerKey, &ToxSave::toxSaveEventHandler, toxSave.get());
+}
+
+bool Widget::handleToxSave(const QString& path)
+{
+    return toxSave->handleToxSave(path);
 }

src/widget/widget.h

@@ -91,6 +91,7 @@ class ContentDialogManager;
 class FriendList;
 class GroupList;
 class IPC;
+class ToxSave;
 
 class Widget final : public QMainWindow
 {
@@ -154,8 +155,9 @@ public:
     bool groupsVisible() const;
 
     void resetIcon();
-    void registerActivate();
+    void registerIpcHandlers();
     static bool toxActivateEventHandler(const QByteArray& data, void* userData);
+    bool handleToxSave(const QString& path);
 
 public slots:
     void reloadTheme();
@@ -400,4 +402,5 @@ private:
     std::unique_ptr<GroupList> groupList;
     std::unique_ptr<ContentDialogManager> contentDialogManager;
     IPC& ipc;
+    std::unique_ptr<ToxSave> toxSave;
 };