fdo#65450 Not to call MenuBar's selection logic for rollover effect

Currently when we rollovers on MenuBar, MenuBar's selection logic
(ChangeHighlightItem et al) is called. But calling these logic on background
window seems to illegal and causes fdo#65450.
(cherry picked from commit 29474304550512f56ef597464bfdb5304bf56bb1)

1 files changed, 31 insertions, 11 deletions

diff --git a/vcl/source/window/menu.cxx b/vcl/source/window/menu.cxx
index 9b4b32f3a98c..2d391893cea1 100644
--- a/vcl/source/window/menu.cxx
+++ b/vcl/source/window/menu.cxx
@@ -676,6 +676,7 @@ private:
     Menu*           pMenu;
     PopupMenu*      pActivePopup;
     sal_uInt16          nHighlightedItem;
+    sal_uInt16          nRolloveredItem;
     sal_uLong           nSaveFocusId;
     sal_Bool            mbAutoPopup;
     sal_Bool            bIgnoreFirstMove;
@@ -5152,6 +5153,7 @@ MenuBarWindow::MenuBarWindow( Window* pParent ) :
     pActivePopup = NULL;
     nSaveFocusId = 0;
     nHighlightedItem = ITEMPOS_INVALID;
+    nRolloveredItem = ITEMPOS_INVALID;
     mbAutoPopup = sal_True;
     nSaveFocusId = 0;
     bIgnoreFirstMove = sal_True;
@@ -5416,11 +5418,29 @@ void MenuBarWindow::MouseMove( const MouseEvent& rMEvt )
     if ( rMEvt.IsSynthetic() || rMEvt.IsEnterWindow() )
         return;
 
-    if ( rMEvt.IsLeaveWindow() && !pActivePopup )
+    if ( rMEvt.IsLeaveWindow() )
     {
-        ChangeHighlightItem( ITEMPOS_INVALID, sal_False );
+        if ( nRolloveredItem != ITEMPOS_INVALID && nRolloveredItem != nHighlightedItem )
+            HighlightItem( nRolloveredItem, sal_False );
+
+        nRolloveredItem = ITEMPOS_INVALID;
+        return;
+    }
+
+    sal_uInt16 nEntry = ImplFindEntry( rMEvt.GetPosPixel() );
+    if ( nHighlightedItem == ITEMPOS_INVALID )
+    {
+        if ( nRolloveredItem != nEntry  )
+        {
+            if ( nRolloveredItem != ITEMPOS_INVALID )
+                HighlightItem( nRolloveredItem, sal_False );
+
+            nRolloveredItem = nEntry;
+            HighlightItem( nRolloveredItem, sal_True );
+        }
         return;
     }
+    nRolloveredItem = nEntry;
 
     if( bIgnoreFirstMove )
     {
@@ -5428,15 +5448,9 @@ void MenuBarWindow::MouseMove( const MouseEvent& rMEvt )
         return;
     }
 
-    sal_uInt16 nEntry = ImplFindEntry( rMEvt.GetPosPixel() );
     if ( ( nEntry != ITEMPOS_INVALID )
        && ( nEntry != nHighlightedItem ) )
-    {
-        if ( ! pActivePopup )
-            mbAutoPopup = sal_False;
-
         ChangeHighlightItem( nEntry, sal_False );
-    }
 }
 
 void MenuBarWindow::ChangeHighlightItem( sal_uInt16 n, sal_Bool bSelectEntry, sal_Bool bAllowRestoreFocus, sal_Bool bDefaultToDocument)
@@ -5505,13 +5519,19 @@ void MenuBarWindow::ChangeHighlightItem( sal_uInt16 n, sal_Bool bSelectEntry, sa
 
     if ( nHighlightedItem != ITEMPOS_INVALID )
     {
-        HighlightItem( nHighlightedItem, sal_False );
+        if ( nHighlightedItem != nRolloveredItem )
+            HighlightItem( nHighlightedItem, sal_False );
+
         pMenu->ImplCallEventListeners( VCLEVENT_MENU_DEHIGHLIGHT, nHighlightedItem );
     }
 
     nHighlightedItem = (sal_uInt16)n;
     DBG_ASSERT( ( nHighlightedItem == ITEMPOS_INVALID ) || pMenu->ImplIsVisible( nHighlightedItem ), "ChangeHighlightItem: Not visible!" );
-    HighlightItem( nHighlightedItem, sal_True );
+    if ( nHighlightedItem != ITEMPOS_INVALID )
+        HighlightItem( nHighlightedItem, sal_True );
+    else if ( nRolloveredItem != ITEMPOS_INVALID )
+        HighlightItem( nRolloveredItem, sal_True );
+
     pMenu->ImplCallHighlight( nHighlightedItem );
 
     if( mbAutoPopup )
@@ -5540,7 +5560,7 @@ void MenuBarWindow::HighlightItem( sal_uInt16 nPos, sal_Bool bHighlight )
                 Rectangle aRect = Rectangle( Point( nX, 1 ), Size( pData->aSz.Width(), GetOutputSizePixel().Height()-2 ) );
                 Push( PUSH_CLIPREGION );
                 IntersectClipRegion( aRect );
-                bool bRollover = bHighlight && ( !pActivePopup && !mbAutoPopup );
+                bool bRollover = bHighlight && nPos != nHighlightedItem;
                 if ( bHighlight )
                 {
                     if( IsNativeControlSupported( CTRL_MENUBAR, PART_MENU_ITEM ) &&