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-rw-r--r--src/gui/kernel/qapplication_x11.cpp9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/gui/kernel/qapplication_x11.cpp b/src/gui/kernel/qapplication_x11.cpp
index 31f70c7..20542ea 100644
--- a/src/gui/kernel/qapplication_x11.cpp
+++ b/src/gui/kernel/qapplication_x11.cpp
@@ -2281,6 +2281,13 @@ void qt_init(QApplicationPrivate *priv, int,
// Attempt to determine the current running X11 Desktop Enviornment
// Use dbus if/when we can, but fall back to using windowManagerName() for now
+#ifndef QT_NO_XFIXES
+ if (X11->ptrXFixesSelectSelectionInput)
+ X11->ptrXFixesSelectSelectionInput(X11->display, QX11Info::appRootWindow(), ATOM(_NET_WM_CM_S0),
+ XFixesSetSelectionOwnerNotifyMask
+ | XFixesSelectionWindowDestroyNotifyMask
+ | XFixesSelectionClientCloseNotifyMask);
+#endif // QT_NO_XFIXES
X11->compositingManagerRunning = XGetSelectionOwner(X11->display,
ATOM(_NET_WM_CM_S0));
X11->desktopEnvironment = DE_UNKNOWN;
@@ -3216,6 +3223,8 @@ int QApplication::x11ProcessEvent(XEvent* event)
XFixesSelectionNotifyEvent *req =
reinterpret_cast<XFixesSelectionNotifyEvent *>(event);
X11->time = req->selection_timestamp;
+ if (req->selection == ATOM(_NET_WM_CM_S0))
+ X11->compositingManagerRunning = req->owner;
}
#endif