fix(app): many fixes

tests/src/main.cpp

@@ -2,6 +2,7 @@
 
 #include <QMenu>
 #include <QQmlApplicationEngine>
+#include <QQmlContext>
 #include <QQuickView>
 #include <QSystemTrayIcon>
 #include <QtDebug>
@@ -11,26 +12,30 @@
 // ===================================================================
 
 int exec (App &app, QQmlApplicationEngine &engine) {
-  if (!QSystemTrayIcon::isSystemTrayAvailable())
+  if (QSystemTrayIcon::isSystemTrayAvailable())
     qWarning() << "System tray not found on this system.";
-  else {
+
   QQuickWindow *root = qobject_cast<QQuickWindow *>(engine.rootObjects().at(0));
   QMenu *menu = new QMenu();
   QSystemTrayIcon *tray_icon = new QSystemTrayIcon(root);
 
-    // Right click actions.
+  // Warning: Add global context trayIcon for all views!
+  engine.rootContext()->setContextProperty("trayIcon", tray_icon);
+
+  // trayIcon: Right click actions.
   QAction *quitAction = new QAction(QObject::tr("Quit"), root);
   root->connect(quitAction, &QAction::triggered, qApp, &QCoreApplication::quit);
 
   QAction *restoreAction = new QAction(QObject::tr("Restore"), root);
   root->connect(restoreAction, &QAction::triggered, root, &QQuickWindow::showNormal);
 
-    // Left click action.
+  // trayIcon: Left click action.
   root->connect(tray_icon, &QSystemTrayIcon::activated, [&root](QSystemTrayIcon::ActivationReason reason) {
     if (reason == QSystemTrayIcon::DoubleClick)
       root->showNormal();
   });
 
+  // Build trayIcon menu.
   menu->addAction(restoreAction);
   menu->addSeparator();
   menu->addAction(quitAction);
@@ -38,8 +43,8 @@ int exec (App &app, QQmlApplicationEngine &engine) {
   tray_icon->setContextMenu(menu);
   tray_icon->setIcon(QIcon(":/imgs/linphone.png"));
   tray_icon->show();
-  }
 
+  // RUN.
   return app.exec();
 }