Resolves: tdf#104919 crash with empty ScNavigatorDlg member

commit 292560a9
Author: Noel Grandin <noel.grandin@collabora.co.uk>
Date:   Mon Oct 17 13:23:23 2016 +0200

    loplugin:unusedmethods

detected the intended methods to do this were unused, so restore then, but hook
them up this time

Change-Id: I3b7e4a557696a91a70956487468b99fec6324a93

sc/source/ui/inc/navipi.hxx

@@ -112,6 +112,10 @@ class ColumnEdit : public SpinField
 public:
     ColumnEdit(Window* pParent, WinBits nWinBits);
     ~ColumnEdit() override;
+    void SetNavigatorDlg(ScNavigatorDlg *pNaviDlg)
+    {
+        xDlg = pNaviDlg;
+    }
     SCCOL   GetCol() { return nCol; }
     void    SetCol( SCCOL nColNo );
 
@@ -140,6 +144,10 @@ class RowEdit : public NumericField
 public:
     RowEdit(Window* pParent, WinBits nWinBits);
     ~RowEdit() override;
+    void SetNavigatorDlg(ScNavigatorDlg *pNaviDlg)
+    {
+        xDlg = pNaviDlg;
+    }
     SCROW   GetRow() { return (SCROW)GetValue(); }
     void    SetRow(SCROW nRow) { SetValue(nRow); }
 

sc/source/ui/navipi/navipi.cxx

@@ -450,7 +450,9 @@ ScNavigatorDlg::ScNavigatorDlg(SfxBindings* pB, bool bSidebar, vcl::Window* pPar
 {
     get(aLbDocuments, "documents");
     get(aEdCol, "column");
+    aEdCol->SetNavigatorDlg(this);
     get(aEdRow, "row");
+    aEdRow->SetNavigatorDlg(this);
     get(aTbxCmd, "toolbox");
     aTbxCmd->SetSelectHdl(LINK(this, ScNavigatorDlg, ToolBoxSelectHdl));
     aTbxCmd->SetDropdownClickHdl(LINK(this, ScNavigatorDlg, ToolBoxDropdownClickHdl));