Resolves: tdf#Crash when clicking the Reminder icon on the Navigation toolbar

the Parent window isn't a SwScrollNaviPopup anymore

Change-Id: I5c539d125aac28bfee0beb842ff2df001e19c945

sw/source/uibase/inc/workctrl.hxx

@@ -110,14 +110,21 @@ public:
     DECL_LINK(PopupHdl, PopupMenu*);
 };
 
+class SwScrollNaviPopup;
+
 class SwScrollNaviToolBox : public ToolBox
 {
+    SwScrollNaviPopup *m_pNaviPopup;
+
     virtual void    MouseButtonUp( const MouseEvent& rMEvt ) SAL_OVERRIDE;
     virtual void    RequestHelp( const HelpEvent& rHEvt ) SAL_OVERRIDE;
 
-    public:
-        SwScrollNaviToolBox(vcl::Window* pParent, WinBits nWinStyle ) :
-            ToolBox(pParent, nWinStyle ) {}
+public:
+    SwScrollNaviToolBox(vcl::Window* pParent, SwScrollNaviPopup* pNaviPopup, WinBits nWinStyle)
+        : ToolBox(pParent, nWinStyle)
+        , m_pNaviPopup(pNaviPopup)
+    {
+    }
 };
 
 class SwScrollNaviPopup : public SfxPopupWindow

sw/source/uibase/ribbar/workctrl.cxx

@@ -394,7 +394,7 @@ SwScrollNaviPopup::SwScrollNaviPopup(sal_uInt16 nId, const Reference< XFrame >&
         "modules/swriter/ui/floatingnavigation.ui", rFrame),
     aIList(SW_RES(IL_VALUES))
 {
-    m_pToolBox = new SwScrollNaviToolBox(get<vcl::Window>("box"), 0);
+    m_pToolBox = new SwScrollNaviToolBox(get<vcl::Window>("box"), this, 0);
     get(m_pInfoField, "label");
 
     sal_uInt16 i;
@@ -502,8 +502,8 @@ IMPL_LINK(SwScrollNaviPopup, SelectHdl, ToolBox*, pSet)
 void SwScrollNaviToolBox::MouseButtonUp( const MouseEvent& rMEvt )
 {
     ToolBox::MouseButtonUp(rMEvt);
-    if ( static_cast<SwScrollNaviPopup*>(GetParent())->IsInPopupMode() )
-        static_cast<SwScrollNaviPopup*>(GetParent())->EndPopupMode( FLOATWIN_POPUPMODEEND_CLOSEALL );
+    if (m_pNaviPopup->IsInPopupMode())
+        m_pNaviPopup->EndPopupMode(FLOATWIN_POPUPMODEEND_CLOSEALL);
 }
 
 void  SwScrollNaviToolBox::RequestHelp( const HelpEvent& rHEvt )