tdf#141166 widget with id "tabcontrol" might not be a TabControl

it might be a VerticalTabControl or any other type

Change-Id: I9f46f7e64a9be2487d400cc4a066575c0d45c19e
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112920
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 15 insertions, 3 deletions

diff --git a/vcl/source/app/salvtables.cxx b/vcl/source/app/salvtables.cxx
index 9d47a3ec14a2..95de139a53bc 100644
--- a/vcl/source/app/salvtables.cxx
+++ b/vcl/source/app/salvtables.cxx
@@ -7008,9 +7008,21 @@ std::unique_ptr<weld::SizeGroup> SalInstanceBuilder::create_size_group()
 
 OString SalInstanceBuilder::get_current_page_help_id() const
 {
-    TabControl* pCtrl = m_xBuilder->get<TabControl>("tabcontrol");
-    TabPage* pTabPage = pCtrl ? pCtrl->GetTabPage(pCtrl->GetCurPageId()) : nullptr;
-    vcl::Window* pTabChild = pTabPage ? pTabPage->GetWindow(GetWindowType::FirstChild) : nullptr;
+    vcl::Window* pCtrl = m_xBuilder->get("tabcontrol");
+    if (!pCtrl)
+        return OString();
+    VclPtr<vcl::Window> xTabPage;
+    if (pCtrl->GetType() == WindowType::TABCONTROL)
+    {
+        TabControl* pTabCtrl = static_cast<TabControl*>(pCtrl);
+        xTabPage = pTabCtrl->GetTabPage(pTabCtrl->GetCurPageId());
+    }
+    else if (pCtrl->GetType() == WindowType::VERTICALTABCONTROL)
+    {
+        VerticalTabControl* pTabCtrl = static_cast<VerticalTabControl*>(pCtrl);
+        xTabPage = pTabCtrl->GetPage(pTabCtrl->GetCurPageId());
+    }
+    vcl::Window* pTabChild = xTabPage ? xTabPage->GetWindow(GetWindowType::FirstChild) : nullptr;
     pTabChild = pTabChild ? pTabChild->GetWindow(GetWindowType::FirstChild) : nullptr;
     if (pTabChild)
         return pTabChild->GetHelpId();