Improved compatibility with KWin.

dockapplet.cpp

@@ -175,8 +175,11 @@ Client::~Client()
 void Client::updateVisibility()
 {
 	QVector<unsigned long> windowTypes = X11Support::instance()->getWindowPropertyAtomsArray(m_handle, "_NET_WM_WINDOW_TYPE");
-	m_visible = windowTypes.contains(X11Support::instance()->atom("_NET_WM_WINDOW_TYPE_NORMAL"));
 	QVector<unsigned long> windowStates = X11Support::instance()->getWindowPropertyAtomsArray(m_handle, "_NET_WM_STATE");
+
+	// Show only regular windows in dock.
+	m_visible = windowTypes.size() == 1 && windowTypes[0] == X11Support::instance()->atom("_NET_WM_WINDOW_TYPE_NORMAL");
+	// Don't show window if requested explicitly in window states.
 	if(windowStates.contains(X11Support::instance()->atom("_NET_WM_STATE_SKIP_TASKBAR")))
 		m_visible = false;
 

x11support.cpp

@@ -169,6 +169,20 @@ void X11Support::activateWindow(unsigned long window)
 	XWindowChanges wc;
 	wc.stack_mode = Above;
 	XConfigureWindow(QX11Info::display(), window, CWStackMode, &wc);
+
+	// Apparently, KWin won't bring window to top with configure request,
+	// so we also need to ask it politely by sending a message.
+	XClientMessageEvent event;
+	event.type = ClientMessage;
+	event.window = window;
+	event.message_type = atom("_NET_ACTIVE_WINDOW");
+	event.format = 32;
+	event.data.l[0] = 2;
+	event.data.l[1] = CurrentTime;
+	event.data.l[2] = 0;
+	event.data.l[3] = 0;
+	event.data.l[4] = 0;
+	XSendEvent(QX11Info::display(), rootWindow(), False, SubstructureNotifyMask | SubstructureRedirectMask, reinterpret_cast<XEvent*>(&event));
 }
 
 void X11Support::minimizeWindow(unsigned long window)