Fixed problem with the add tab button of tab bar

1 files changed, 12 insertions, 1 deletions

diff --git a/src/tabbar.cpp b/src/tabbar.cpp
index d676af55..3f3faabc 100644
--- a/src/tabbar.cpp
+++ b/src/tabbar.cpp
@@ -73,7 +73,18 @@ TabBar::~TabBar()
 
 void TabBar::postLaunch()
 {
-    m_addTabButton->setDefaultAction(Application::instance()->mainWindow()->actionByName("new_tab"));
+    // Find the correct MainWindow of this tab button
+    MainWindowList list = Application::instance()->mainWindowList();
+    MainWindow *window;
+    foreach (window, list)
+    {
+        if (window->isAncestorOf(this))
+	{
+	    m_addTabButton->setDefaultAction(window->actionByName("new_tab"));
+	    break;
+	}
+    }
+    
     m_addTabButton->setAutoRaise(true);
     m_addTabButton->setToolButtonStyle(Qt::ToolButtonIconOnly);
     m_addTabButton->show();