xcb: set SM_CLIENT_ID property

SM_CLIENT_ID is required by kwin for proper session management.

- move client leader initialization from screen to connection
- add SM_CLIENT_ID property to client leader

Change-Id: I19fb0d098811c865f6f13d5bc3e59a173c596a65
Task-number: QTBUG-46310
Reviewed-by: Alexander Volkov <a.volkov@rusbitech.ru>
Reviewed-by: Uli Schlachter <psychon@znc.in>
Reviewed-by: Shawn Rutledge <shawn.rutledge@theqtcompany.com>

1 files changed, 0 insertions, 3 deletions

diff --git a/src/plugins/platforms/xcb/qxcbscreen.h b/src/plugins/platforms/xcb/qxcbscreen.h
index 44519470e9..ccc30c0b84 100644
--- a/src/plugins/platforms/xcb/qxcbscreen.h
+++ b/src/plugins/platforms/xcb/qxcbscreen.h
@@ -116,8 +116,6 @@ public:
     xcb_randr_crtc_t crtc() const { return m_crtc; }
     xcb_randr_mode_t mode() const { return m_mode; }
 
-    xcb_window_t clientLeader() const { return m_clientLeader; }
-
     void windowShown(QXcbWindow *window);
     QString windowManagerName() const { return m_windowManagerName; }
     bool syncRequestSupported() const { return m_syncRequestSupported; }
@@ -173,7 +171,6 @@ private:
     Qt::ScreenOrientation m_orientation;
     QString m_windowManagerName;
     bool m_syncRequestSupported;
-    xcb_window_t m_clientLeader;
     QMap<xcb_visualid_t, xcb_visualtype_t> m_visuals;
     QMap<xcb_visualid_t, quint8> m_visualDepths;
     QXcbCursor *m_cursor;