First tray attempt, seems to be working

main/application.cpp

@@ -27,8 +27,14 @@ Application::Application(Core::Squawk* p_core):
     dialogueQueue(roster),
     nowQuitting(false),
     destroyingSquawk(false),
-    storage()
+    storage(),
+    trayIcon(nullptr),
+    actionQuit(Shared::icon("application-exit"), tr("Quit")),
+    actionToggle(tr("Minimize to tray"))
 {
+    connect(&actionQuit, &QAction::triggered, this, &Application::quit);
+    connect(&actionToggle, &QAction::triggered, this, &Application::toggleSquawk);
+
     connect(&roster, &Models::Roster::unnoticedMessage, this, &Application::notify);
     connect(&roster, &Models::Roster::unreadMessagesCountChanged, this, &Application::unreadMessagesCountChanged);
 
@@ -130,6 +136,12 @@ void Application::quit()
         if (squawk != nullptr) {
             squawk->close();
         }
+
+        if (trayIcon != nullptr) {
+            trayIcon->deleteLater();
+            trayIcon = nullptr;
+        }
+
         if (!destroyingSquawk) {
             checkForTheLastWindow();
         }
@@ -155,6 +167,8 @@ void Application::createMainWindow()
         connect(squawk, &Squawk::openedConversation, this, &Application::onSquawkOpenedConversation);
         connect(squawk, &Squawk::openConversation, this, &Application::openConversation);
         connect(squawk, &Squawk::changeState, this, &Application::setState);
+        connect(squawk, &Squawk::changeTray, this, &Application::onChangeTray);
+        connect(squawk, &Squawk::quit, this, &Application::quit);
         connect(squawk, &Squawk::closing, this, &Application::onSquawkClosing);
 
         connect(squawk, &Squawk::modifyAccountRequest, core, &Core::Squawk::modifyAccountRequest);
@@ -194,8 +208,15 @@ void Application::onSquawkClosing()
     squawk->deleteLater();
     squawk = nullptr;
 
-    //for now
-    quit();
+    QSettings settings;
+    if (!nowQuitting && QSystemTrayIcon::isSystemTrayAvailable() && settings.value("tray", false).toBool()) {
+        if (settings.value("hideTray", false).toBool()) {
+            createTrayIcon();
+        }
+        actionToggle.setText(tr("Show Squawk"));
+    } else {
+        quit();
+    }
 }
 
 void Application::onSquawkDestroyed() {
@@ -205,6 +226,71 @@ void Application::onSquawkDestroyed() {
     }
 }
 
+void Application::onChangeTray(bool enabled, bool hide)
+{
+    if (enabled) {
+        if (trayIcon == nullptr) {
+            if (!hide || squawk == nullptr) {
+                createTrayIcon();
+            }
+        } else {
+            if (hide && squawk != nullptr) {
+                trayIcon->deleteLater();
+                trayIcon = nullptr;
+            }
+        }
+    } else if (trayIcon == nullptr) {
+        trayIcon->deleteLater();
+        trayIcon = nullptr;
+    }
+}
+
+void Application::createTrayIcon()
+{
+    trayIcon = new QSystemTrayIcon();
+
+    QMenu* trayIconMenu = new QMenu();
+    trayIconMenu->addAction(&actionToggle);
+    trayIconMenu->addAction(&actionQuit);
+
+    trayIcon->setContextMenu(trayIconMenu);
+    trayIcon->setIcon(QApplication::windowIcon().pixmap(32, 32));
+    trayIcon->setToolTip(QApplication::applicationDisplayName());
+
+    connect(trayIcon, &QSystemTrayIcon::activated, this, &Application::trayClicked);
+    connect(trayIcon, &QSystemTrayIcon::destroyed, trayIconMenu, &QMenu::deleteLater);
+
+    trayIcon->show();
+}
+
+void Application::trayClicked(QSystemTrayIcon::ActivationReason reason)
+{
+    switch (reason) {
+        case QSystemTrayIcon::Trigger:
+        case QSystemTrayIcon::DoubleClick:
+        case QSystemTrayIcon::MiddleClick:
+            toggleSquawk();
+            break;
+        default:
+            break;
+    }
+}
+
+void Application::toggleSquawk()
+{
+    QSettings settings;
+    if (squawk == nullptr) {
+        createMainWindow();
+        if (settings.value("hideTray", false).toBool()) {
+            trayIcon->deleteLater();
+            trayIcon = nullptr;
+        }
+
+        actionToggle.setText(tr("Minimize to tray"));
+    } else {
+        squawk->close();
+    }
+}
 
 void Application::notify(const QString& account, const Shared::Message& msg)
 {
@@ -345,6 +431,10 @@ void Application::readSettings()
 
     setState(Shared::Global::fromInt<Shared::Availability>(avail));
     createMainWindow();
+
+    if (settings.value("tray", false).toBool() && !settings.value("hideTray", false).toBool()) {
+        createTrayIcon();
+    }
 }
 
 void Application::writeSettings()

main/application.h

@@ -21,6 +21,9 @@
 
 #include <QObject>
 #include <QDBusInterface>
+#include <QSystemTrayIcon>
+#include <QMenu>
+#include <QAction>
 
 #include "dialogqueue.h"
 #include "core/squawk.h"
@@ -91,13 +94,16 @@ private slots:
     void onSquawkDestroyed();
     void onNotificationClosed(quint32 id, quint32 reason);
     void onNotificationInvoked(quint32 id, const QString& action);
-
+    void onChangeTray(bool enabled, bool hide);
+    void trayClicked(QSystemTrayIcon::ActivationReason reason);
+    void toggleSquawk();
 
 private:
     void createMainWindow();
     void subscribeConversation(Conversation* conv);
     void checkForTheLastWindow();
     void focusConversation(const Models::Roster::ElId& id, const QString& resource = "", const QString& messageId = "");
+    void createTrayIcon();
 
 private:
     typedef std::map<Models::Roster::ElId, Conversation*> Conversations;
@@ -113,6 +119,9 @@ private:
     bool nowQuitting;
     bool destroyingSquawk;
     Notifications storage;
+    QSystemTrayIcon* trayIcon;
+    QAction actionQuit;
+    QAction actionToggle;
 };
 
 #endif // APPLICATION_H