if the mouse is above an item and moved very fast outside the widget, no viewportEntered() signal might be emitted although the mouse has been moved above the viewport

svn path=/trunk/KDE/kdebase/apps/; revision=797742

1 files changed, 13 insertions, 0 deletions

diff --git a/src/dolphindetailsview.cpp b/src/dolphindetailsview.cpp
index 470cafa1d..aef034df1 100644
--- a/src/dolphindetailsview.cpp
+++ b/src/dolphindetailsview.cpp
@@ -134,6 +134,7 @@ DolphinDetailsView::DolphinDetailsView(QWidget* parent, DolphinController* contr
     updateDecorationSize();
 
     setFocus();
+    viewport()->installEventFilter(this);
 
     connect(KGlobalSettings::self(), SIGNAL(kdisplayFontChanged()),
             this, SLOT(updateFont()));
@@ -363,6 +364,18 @@ void DolphinDetailsView::currentChanged(const QModelIndex& current, const QModel
     }
 }
 
+bool DolphinDetailsView::eventFilter(QObject* watched, QEvent* event)
+{
+    if ((watched == viewport()) && (event->type() == QEvent::Leave)) {
+        // if the mouse is above an item and moved very fast outside the widget,
+        // no viewportEntered() signal might be emitted although the mouse has been moved
+        // above the viewport
+        m_controller->emitViewportEntered();
+    }
+
+    return QTreeView::eventFilter(watched, event);
+}
+
 void DolphinDetailsView::setSortIndicatorSection(DolphinView::Sorting sorting)
 {
     QHeaderView* headerView = header();