Fix leak in Systray

The member _trayEngine, allocated in the constructor, was leaking.

This commit sets the Systray instance as the Qt object tree parent of
the _trayEngine to fix the leak.

While at it, a few unused header includes have been removed.

Signed-off-by: Stephan Beyer <s-beyer@gmx.net>

src/gui/systray.cpp

@@ -19,10 +19,9 @@
 #include "tray/UserModel.h"
 
 #include <QCursor>
-#include <QDesktopServices>
 #include <QGuiApplication>
-#include <QQmlComponent>
 #include <QQmlApplicationEngine>
+#include <QQmlContext>
 #include <QScreen>
 
 #ifdef USE_FDO_NOTIFICATIONS
@@ -50,8 +49,8 @@ Systray *Systray::instance()
 Systray::Systray()
     : _isOpen(false)
     , _syncIsPaused(false)
+    , _trayEngine(new QQmlApplicationEngine(this))
 {
-    _trayEngine = new QQmlApplicationEngine;
     _trayEngine->addImportPath("qrc:/qml/theme");
     _trayEngine->addImageProvider("avatars", new ImageProvider);
     _trayEngine->rootContext()->setContextProperty("userModelBackend", UserModel::instance());

src/gui/systray.h

@@ -16,12 +16,10 @@
 #define SYSTRAY_H
 
 #include <QSystemTrayIcon>
-#include <QQmlContext>
 
 #include "accountmanager.h"
 #include "tray/UserModel.h"
 
-class QIcon;
 class QQmlApplicationEngine;
 
 namespace OCC {