Description: lxqtpanel: Fix wrongly positioned popups
 Avoid the usage the QWidget::mapToGlobal(), which is unreliable sometimes.
Author: Palo Kisa <palo.kisa@gmail.com>
Origin: backport
Bug: https://github.com/lxde/lxqt/issues/1076
Bug-Ubuntu: https://pad.lv/1527013
Applied-Upstream: commit:7391172
Last-Update: 2018-02-05
--- a/panel/lxqtpanel.cpp
+++ b/panel/lxqtpanel.cpp
@@ -987,7 +987,8 @@ void LXQtPanel::setReserveSpace(bool res
  ************************************************/
 QRect LXQtPanel::globalGometry() const
 {
-    return QRect(mapToGlobal(QPoint(0, 0)), this->size());
+    // panel is the the top-most widget/window, no calculation needed
+    return geometry();
 }
 
 
@@ -1204,7 +1205,8 @@ QRect LXQtPanel::calculatePopupWindowPos
         return QRect();
     }
 
-    return calculatePopupWindowPos(panel_plugin->mapToGlobal(QPoint(0, 0)), windowSize);
+    // Note: assuming there are not contentMargins around the "BackgroundWidget" (LXQtPanelWidget)
+    return calculatePopupWindowPos(globalGometry().topLeft() + panel_plugin->geometry().topLeft(), windowSize);
 }