gui: close-to-tray option + fix session list disrupting rename

- Add configurable close-to-tray (Settings > System Tray)
  - QSystemTrayIcon with show/hide toggle and quit action
  - closeToTray property persisted in theme.conf
  - Window hides instead of quitting when enabled

- Fix session rename being interrupted by state changes
  - onStateChanged no longer calls refreshSessions()
  - State updates in-place via sessionStateUpdated signal
  - Delegates track state locally, preserving rename TextField

gui/main-kf5.qml

@@ -10,6 +10,13 @@ ApplicationWindow {
     height: 600
     visible: true
 
+    onClosing: {
+        if (theme.closeToTray && systemTrayAvailable) {
+            close.accepted = false
+            root.hide()
+        }
+    }
+
     color: palette.window
     font.family: theme.fontFamily || Qt.application.font.family
     font.pointSize: theme.fontSize > 0 ? theme.fontSize : Qt.application.font.pointSize
@@ -136,6 +143,37 @@ ApplicationWindow {
                 text: "Reset to system font"
                 onClicked: theme.resetFont()
             }
+
+            // --- Close to tray section ---
+            Rectangle {
+                Layout.fillWidth: true
+                height: 1
+                color: palette.mid
+                Layout.topMargin: 8
+            }
+
+            Label {
+                text: "System Tray"
+                font.bold: true
+            }
+
+            CheckBox {
+                text: "Close to tray instead of quitting"
+                checked: theme.closeToTray
+                onToggled: theme.closeToTray = checked
+                enabled: systemTrayAvailable
+            }
+
+            Label {
+                text: systemTrayAvailable
+                    ? "Window will hide to the system tray when closed."
+                    : "System tray is not available."
+                opacity: 0.5
+                font.pixelSize: Qt.application.font.pixelSize * 0.85
+                wrapMode: Text.Wrap
+                Layout.fillWidth: true
+                visible: theme.closeToTray || !systemTrayAvailable
+            }
         }
     }
 
@@ -206,6 +244,15 @@ ApplicationWindow {
                         highlighted: modelData.id === dbus.activeSessionId
 
                         property bool renaming: false
+                        property string sessionState: modelData.state
+
+                        Connections {
+                            target: dbus
+                            function onSessionStateUpdated(sessionId, newState) {
+                                if (sessionId === modelData.id)
+                                    sessionDelegate.sessionState = newState
+                            }
+                        }
 
                         background: Rectangle {
                             color: sessionDelegate.highlighted
@@ -221,7 +268,7 @@ ApplicationWindow {
                                 height: 8
                                 radius: 4
                                 color: {
-                                    var state = modelData.state
+                                    var state = sessionDelegate.sessionState
                                     if (state === "idle") return "#4caf50"
                                     if (state.startsWith("calling")) return "#ff9800"
                                     return "#2196f3"

gui/main.cpp

@@ -7,6 +7,10 @@
 #include <QPainter>
 #include <QFont>
 #include <QFontDatabase>
+#include <QSystemTrayIcon>
+#include <QMenu>
+#include <QAction>
+#include <QWindow>
 
 #include "olliedbusclient.h"
 #include "thememanager.h"
@@ -77,6 +81,8 @@ int main(int argc, char *argv[])
     engine.rootContext()->setContextProperty("dbus", dbus);
     engine.rootContext()->setContextProperty("theme", theme);
     engine.rootContext()->setContextProperty("chatModel", chatModel);
+    engine.rootContext()->setContextProperty("systemTrayAvailable",
+        QSystemTrayIcon::isSystemTrayAvailable());
 
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
     const QUrl url(QStringLiteral("qrc:/gui/main.qml"));
@@ -91,5 +97,54 @@ int main(int argc, char *argv[])
         }, Qt::QueuedConnection);
 
     engine.load(url);
+
+    // --- System tray icon (shown when close-to-tray is enabled) ---
+    auto *trayIcon = new QSystemTrayIcon(&app);
+    trayIcon->setIcon(app.windowIcon());
+    trayIcon->setToolTip("Ollie");
+
+    auto *trayMenu = new QMenu();
+    auto *showAction = trayMenu->addAction("Show");
+    trayMenu->addSeparator();
+    auto *quitAction = trayMenu->addAction("Quit");
+    trayIcon->setContextMenu(trayMenu);
+
+    // Toggle window visibility on tray icon activation
+    QObject::connect(trayIcon, &QSystemTrayIcon::activated,
+        [&engine](QSystemTrayIcon::ActivationReason reason) {
+            if (reason != QSystemTrayIcon::Trigger)
+                return;
+            auto roots = engine.rootObjects();
+            if (roots.isEmpty()) return;
+            auto *window = qobject_cast<QWindow *>(roots.first());
+            if (!window) return;
+            if (window->isVisible()) {
+                window->hide();
+            } else {
+                window->show();
+                window->raise();
+                window->requestActivate();
+            }
+        });
+
+    QObject::connect(showAction, &QAction::triggered, [&engine]() {
+        auto roots = engine.rootObjects();
+        if (roots.isEmpty()) return;
+        auto *window = qobject_cast<QWindow *>(roots.first());
+        if (!window) return;
+        window->show();
+        window->raise();
+        window->requestActivate();
+    });
+
+    QObject::connect(quitAction, &QAction::triggered, &app, &QApplication::quit);
+
+    // Show/hide tray icon based on setting
+    auto updateTrayVisibility = [trayIcon, theme]() {
+        trayIcon->setVisible(theme->closeToTray());
+    };
+    updateTrayVisibility();
+    QObject::connect(theme, &ThemeManager::closeToTrayChanged, updateTrayVisibility);
+
     return app.exec();
 }

gui/main.qml

@@ -10,6 +10,13 @@ ApplicationWindow {
     height: 600
     visible: true
 
+    onClosing: function(close) {
+        if (theme.closeToTray && systemTrayAvailable) {
+            close.accepted = false
+            root.hide()
+        }
+    }
+
     color: palette.window
     font.family: theme.fontFamily || Qt.application.font.family
     font.pointSize: theme.fontSize > 0 ? theme.fontSize : Qt.application.font.pointSize
@@ -137,6 +144,37 @@ ApplicationWindow {
                 text: "Reset to system font"
                 onClicked: theme.resetFont()
             }
+
+            // --- Close to tray section ---
+            Rectangle {
+                Layout.fillWidth: true
+                height: 1
+                color: palette.mid
+                Layout.topMargin: 8
+            }
+
+            Label {
+                text: "System Tray"
+                font.bold: true
+            }
+
+            CheckBox {
+                text: "Close to tray instead of quitting"
+                checked: theme.closeToTray
+                onToggled: theme.closeToTray = checked
+                enabled: systemTrayAvailable
+            }
+
+            Label {
+                text: systemTrayAvailable
+                    ? "Window will hide to the system tray when closed."
+                    : "System tray is not available."
+                opacity: 0.5
+                font.pixelSize: Qt.application.font.pixelSize * 0.85
+                wrapMode: Text.Wrap
+                Layout.fillWidth: true
+                visible: theme.closeToTray || !systemTrayAvailable
+            }
         }
     }
 
@@ -207,6 +245,15 @@ ApplicationWindow {
                         highlighted: modelData.id === dbus.activeSessionId
 
                         property bool renaming: false
+                        property string sessionState: modelData.state
+
+                        Connections {
+                            target: dbus
+                            function onSessionStateUpdated(sessionId, newState) {
+                                if (sessionId === modelData.id)
+                                    sessionDelegate.sessionState = newState
+                            }
+                        }
 
                         background: Rectangle {
                             color: sessionDelegate.highlighted
@@ -222,7 +269,7 @@ ApplicationWindow {
                                 height: 8
                                 radius: 4
                                 color: {
-                                    let state = modelData.state
+                                    let state = sessionDelegate.sessionState
                                     if (state === "idle") return "#4caf50"
                                     if (state.startsWith("calling")) return "#ff9800"
                                     return "#2196f3"

gui/thememanager.cpp

@@ -13,6 +13,7 @@ ThemeManager::ThemeManager(QObject *parent)
     : QObject(parent)
     , m_mode("system")
     , m_fontSize(0)
+    , m_closeToTray(false)
     , m_watcher(nullptr)
 {
     loadSettings();
@@ -372,6 +373,22 @@ QStringList ThemeManager::availableStyles() const
 #endif
 }
 
+// --- Close-to-tray ---
+
+bool ThemeManager::closeToTray() const
+{
+    return m_closeToTray;
+}
+
+void ThemeManager::setCloseToTray(bool enabled)
+{
+    if (enabled == m_closeToTray)
+        return;
+    m_closeToTray = enabled;
+    saveSettings();
+    emit closeToTrayChanged();
+}
+
 void ThemeManager::resetFont()
 {
     m_fontFamily.clear();
@@ -430,6 +447,8 @@ void ThemeManager::loadSettings()
         m_fontFamily = settings.value("Font/family", "").toString();
         m_fontSize = settings.value("Font/size", 0).toInt();
         m_fontStyle = settings.value("Font/style", "").toString();
+
+        m_closeToTray = settings.value("General/closeToTray", false).toBool();
     }
 }
 
@@ -444,4 +463,5 @@ void ThemeManager::saveSettings()
     settings.setValue("Font/family", m_fontFamily);
     settings.setValue("Font/size", m_fontSize);
     settings.setValue("Font/style", m_fontStyle);
+    settings.setValue("General/closeToTray", m_closeToTray);
 }

gui/thememanager.h

@@ -46,6 +46,9 @@ class ThemeManager : public QObject
     Q_PROPERTY(QStringList availableFamilies READ availableFamilies CONSTANT)
     Q_PROPERTY(QStringList availableStyles READ availableStyles NOTIFY fontChanged)
 
+    // Close-to-tray
+    Q_PROPERTY(bool closeToTray READ closeToTray WRITE setCloseToTray NOTIFY closeToTrayChanged)
+
 public:
     enum Mode {
         System,  // Follow KDE system color scheme
@@ -91,6 +94,10 @@ public:
     QStringList availableFamilies() const;
     QStringList availableStyles() const;
 
+    // Close-to-tray
+    bool closeToTray() const;
+    void setCloseToTray(bool enabled);
+
     Q_INVOKABLE void resetFont();
     Q_INVOKABLE QString chooseFolder(const QString &title, const QString &startDir = QString());
 
@@ -101,6 +108,7 @@ signals:
     void modeChanged();
     void paletteChanged();
     void fontChanged();
+    void closeToTrayChanged();
 
 private:
     QPalette paletteFromScheme(const QString &path) const;
@@ -116,6 +124,7 @@ private:
     QString m_fontFamily;
     int m_fontSize;
     QString m_fontStyle;
+    bool m_closeToTray;
     QFileSystemWatcher *m_watcher;
     KConfigWatcher::Ptr m_configWatcher;
     static constexpr const char *SCHEMES_DIR = "/usr/share/color-schemes";

plasmoid/plugin/olliedbusclient.cpp

@@ -426,7 +426,21 @@ void OllieDBusClient::onStateChanged(const QString &session_id, const QString &n
         m_activeState = new_state;
         emit activeStateChanged();
     }
-    refreshSessions();
+
+    // Update state in-place without emitting sessionsChanged() — that would
+    // cause the ListView to recreate all delegates, breaking inline rename.
+    // The QML state indicator for the active session uses dbus.activeState
+    // (updated above). For other sessions the dot updates on the next real
+    // refresh (session created/killed/renamed).
+    for (int i = 0; i < m_sessions.size(); ++i) {
+        QVariantMap session = m_sessions[i].toMap();
+        if (session["id"].toString() == session_id) {
+            session["state"] = new_state;
+            m_sessions[i] = session;
+            emit sessionStateUpdated(session_id, new_state);
+            return;
+        }
+    }
 }
 
 void OllieDBusClient::onChatUpdated(const QString &session_id, qlonglong offset, const QString &new_text)

plasmoid/plugin/olliedbusclient.h

@@ -58,6 +58,7 @@ signals:
     void activeCwdChanged();
     void activeModelChanged();
     void activeBackendChanged();
+    void sessionStateUpdated(const QString &sessionId, const QString &newState);
 
 private slots:
     void onSessionCreated(const QString &session_id);