Last bits on focus/window persistence management; now behaves fully QMenu-like.

submenu.cpp

@@ -22,11 +22,15 @@
 
 #include <cmath>
 
+#include <QDebug>
 #include <QScreen>
 
+#include <KWindowSystem>
+
 SubMenu::SubMenu(QQuickItem *parent) : PlasmaQuick::Dialog(parent)
 , m_facingLeft(false)
 {
+   KWindowSystem::setType(winId(), NET::Menu);
 }
 
 SubMenu::~SubMenu()
@@ -76,3 +80,16 @@ QRect SubMenu::availableScreenRectForItem(QQuickItem *item) const
 
     return screen->availableGeometry();
 }
+
+
+void SubMenu::focusOutEvent(QFocusEvent *ev)
+{
+    const QWindow *focusWindow = QGuiApplication::focusWindow();
+
+    if (!(focusWindow && focusWindow->isActive() && isAncestorOf(focusWindow))) {
+        emit focusLost();
+    }
+
+    QQuickWindow::focusOutEvent(ev);
+}
+

submenu.h

@@ -43,6 +43,10 @@ class SubMenu : public PlasmaQuick::Dialog
 
     Q_SIGNALS:
         void facingLeftChanged() const;
+        void focusLost() const;
+
+    protected:
+        void focusOutEvent(QFocusEvent *ev);
 
     private:
         bool m_facingLeft;

windowsystem.cpp

@@ -40,4 +40,13 @@ void WindowSystem::forceActive(QQuickItem *item)
 
     KWindowSystem::forceActiveWindow(item->window()->winId());
     KWindowSystem::raiseWindow(item->window()->winId());
-}
+}
+
+bool WindowSystem::isActive(QQuickItem *item)
+{
+    if (!item || !item->window()) {
+        return false;
+    }
+
+    return item->window()->isActive();
+}

windowsystem.h

@@ -33,6 +33,8 @@ class WindowSystem : public QObject
         ~WindowSystem();
 
         Q_INVOKABLE void forceActive(QQuickItem *item);
+
+        Q_INVOKABLE bool isActive(QQuickItem *item);
 };
 
 #endif