tdf#118540: LO6.1b2: DOCX crashes when properties...

are opened in print preview mode

Change-Id: Idc64d2b98dff157d28813dd3f90a276f8cacd11f
Reviewed-on: https://gerrit.libreoffice.org/57024
Tested-by: Jenkins
Reviewed-by: Henry Castro <hcastro@collabora.com>
Reviewed-on: https://gerrit.libreoffice.org/57059Reviewed-by: Aron Budea <aron.budea@collabora.com>
Tested-by: Aron Budea <aron.budea@collabora.com>

sw/source/uibase/app/docsh2.cxx

@@ -139,7 +139,9 @@ using namespace ::sfx2;
 // create DocInfo (virtual)
 VclPtr<SfxDocumentInfoDialog> SwDocShell::CreateDocumentInfoDialog(const SfxItemSet &rSet)
 {
-    VclPtr<SfxDocumentInfoDialog> pDlg = VclPtr<SfxDocumentInfoDialog>::Create(&GetView()->GetViewFrame()->GetWindow(), rSet);
+    SfxViewShell* pViewShell = GetView() ? GetView() : SfxViewShell::Current();
+    vcl::Window* pWindow = pViewShell ? &pViewShell->GetViewFrame()->GetWindow() : nullptr;
+    VclPtr<SfxDocumentInfoDialog> pDlg = VclPtr<SfxDocumentInfoDialog>::Create(pWindow, rSet);
     //only with statistics, when this document is being shown, not
     //from within the Doc-Manager
     SwDocShell* pDocSh = static_cast<SwDocShell*>( SfxObjectShell::Current());