From 1bd4990984329f19f7ff8613042c00db4fdfdfc8 Mon Sep 17 00:00:00 2001
From: Marco Martin <notmart@gmail.com>
Date: Tue, 5 Jan 2016 17:29:43 +0100
Subject: [PATCH] fix close button

enabled when it should, also use a qpointer to
remove some crashes
---
 containments/taskpanel/taskpanel.cpp | 6 ++++++
 containments/taskpanel/taskpanel.h   | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/containments/taskpanel/taskpanel.cpp b/containments/taskpanel/taskpanel.cpp
index 21a0de09..00ea6fcd 100644
--- a/containments/taskpanel/taskpanel.cpp
+++ b/containments/taskpanel/taskpanel.cpp
@@ -146,7 +146,13 @@ void TaskPanel::updateActiveWindow()
     if (!m_windowManagement) {
         return;
     }
+    if (m_activeWindow) {
+        disconnect(m_activeWindow, &KWayland::Client::PlasmaWindow::closeableChanged, this, &TaskPanel::hasCloseableActiveWindowChanged);
+    }
     m_activeWindow = m_windowManagement->activeWindow();
+
+    connect(m_activeWindow, &KWayland::Client::PlasmaWindow::closeableChanged, this, &TaskPanel::hasCloseableActiveWindowChanged);
+
     // TODO: connect to closeableChanged, not needed right now as KWin doesn't provide this changeable
     emit hasCloseableActiveWindowChanged();
 }
diff --git a/containments/taskpanel/taskpanel.h b/containments/taskpanel/taskpanel.h
index ff3548a5..10a57706 100644
--- a/containments/taskpanel/taskpanel.h
+++ b/containments/taskpanel/taskpanel.h
@@ -82,7 +82,7 @@ private:
     KWayland::Client::PlasmaShell *m_shellInterface = nullptr;
     KWayland::Client::PlasmaWindowManagement *m_windowManagement = nullptr;
     KWayland::Client::PlasmaWindowModel *m_windowModel = nullptr;
-    KWayland::Client::PlasmaWindow *m_activeWindow = nullptr;
+    QPointer<KWayland::Client::PlasmaWindow> m_activeWindow;
 };
 
 #endif