+
+bool GraphicalUi::eventFilter(QObject *obj, QEvent *event)
+{
+#ifdef Q_OS_WIN
+ if (obj == mainWidget() && event->type() == QEvent::ActivationChange) {
+ _dwTickCount = GetTickCount();
+ }
+#endif
+ return AbstractUi::eventFilter(obj, event);
+}
+
+
+// NOTE: Window activation stuff seems to work just fine in Plasma 5 without requiring X11 hacks.
+// TODO: Evaluate cleaning all this up once we can get rid of Qt4/KDE4
+
+// Code taken from KStatusNotifierItem for handling minimize/restore
+
+bool GraphicalUi::checkMainWidgetVisibility(bool perform)
+{
+#ifdef Q_OS_WIN
+ // the problem is that we lose focus when the systray icon is activated
+ // and we don't know the former active window
+ // therefore we watch for activation event and use our stopwatch :)
+ if (GetTickCount() - _dwTickCount < 300) {
+ // we were active in the last 300ms -> hide it
+ if (perform)
+ minimizeRestore(false);
+ return false;
+ }
+ else {
+ if (perform)
+ minimizeRestore(true);
+ return true;
+ }
+
+#elif defined(HAVE_KDE4) && defined(Q_WS_X11)
+ KWindowInfo info1 = KWindowSystem::windowInfo(mainWidget()->winId(), NET::XAWMState | NET::WMState | NET::WMDesktop);
+ // mapped = visible (but possibly obscured)
+ bool mapped = (info1.mappingState() == NET::Visible) && !info1.isMinimized();
+
+ // - not mapped -> show, raise, focus
+ // - mapped
+ // - obscured -> raise, focus
+ // - not obscured -> hide
+ //info1.mappingState() != NET::Visible -> window on another desktop?
+ if (!mapped) {
+ if (perform)
+ minimizeRestore(true);
+ return true;
+ }
+ else {
+ QListIterator<WId> it(KWindowSystem::stackingOrder());
+ it.toBack();
+ while (it.hasPrevious()) {
+ WId id = it.previous();
+ if (id == mainWidget()->winId())
+ break;
+
+ KWindowInfo info2 = KWindowSystem::windowInfo(id, NET::WMDesktop | NET::WMGeometry | NET::XAWMState | NET::WMState | NET::WMWindowType);
+
+ if (info2.mappingState() != NET::Visible)
+ continue; // not visible on current desktop -> ignore
+
+ if (!info2.geometry().intersects(mainWidget()->geometry()))
+ continue; // not obscuring the window -> ignore
+
+ if (!info1.hasState(NET::KeepAbove) && info2.hasState(NET::KeepAbove))
+ continue; // obscured by window kept above -> ignore
+
+ NET::WindowType type = info2.windowType(NET::NormalMask | NET::DesktopMask
+ | NET::DockMask | NET::ToolbarMask | NET::MenuMask | NET::DialogMask
+ | NET::OverrideMask | NET::TopMenuMask | NET::UtilityMask | NET::SplashMask);
+
+ if (type == NET::Dock || type == NET::TopMenu)
+ continue; // obscured by dock or topmenu -> ignore
+
+ if (perform) {
+ KWindowSystem::raiseWindow(mainWidget()->winId());
+ KWindowSystem::activateWindow(mainWidget()->winId());
+ }
+ return true;
+ }
+
+ //not on current desktop?
+ if (!info1.isOnCurrentDesktop()) {
+ if (perform)
+ KWindowSystem::activateWindow(mainWidget()->winId());
+ return true;
+ }
+
+ if (perform)
+ minimizeRestore(false); // hide
+ return false;
+ }
+#else
+
+ if (!mainWidget()->isVisible() || mainWidget()->isMinimized() || !mainWidget()->isActiveWindow()) {
+ if (perform)
+ minimizeRestore(true);
+ return true;
+ }
+ else {
+ if (perform)
+ minimizeRestore(false);
+ return false;
+ }
+
+#endif
+
+ return true;
+}
+
+
+bool GraphicalUi::isMainWidgetVisible()
+{
+ return !instance()->checkMainWidgetVisibility(false);
+}
+
+
+void GraphicalUi::minimizeRestore(bool show)
+{
+ if (show)
+ activateMainWidget();
+ else
+ hideMainWidget();
+}
+
+
+void GraphicalUi::activateMainWidget()
+{
+#ifdef HAVE_KDE4