don't create a new ResMgr for each string

since...

commit f3f71b087d25966d39a4c883bbe0b60b27419119
Date:   Fri Nov 11 18:25:37 2016 +0100

    Avoid -fsanitize=null

    ...during CppunitTest_filter_dialogs_test:

Change-Id: I9c267816d013c27922621b6c8a75c53ce5b78bd8
Reviewed-on: https://gerrit.libreoffice.org/37704
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

2 files changed, 31 insertions, 8 deletions

diff --git a/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx b/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx
index 490f3ad60f27..6bcd6f24fc7e 100644
--- a/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx
+++ b/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx
@@ -61,16 +61,30 @@ using namespace com::sun::star::util;
 using ::rtl::Uri;
 
 namespace {
+    static ResMgr* pXSLTResMgr = nullptr;
 
-std::unique_ptr<ResMgr> getXSLTDialogResMgr() {
-    return std::unique_ptr<ResMgr>(
-        ResMgr::CreateResMgr(
-            "xsltdlg", Application::GetSettings().GetUILanguageTag()));
+    ResMgr* getXSLTDialogResMgr()
+    {
+        return pXSLTResMgr;
+    }
+}
+
+EnsureResMgr::EnsureResMgr()
+{
+    if (!pXSLTResMgr)
+    {
+        m_xResMgr.reset(ResMgr::CreateResMgr("xsltdlg", Application::GetSettings().GetUILanguageTag()));
+        pXSLTResMgr = m_xResMgr.get();
+    }
 }
 
+EnsureResMgr::~EnsureResMgr()
+{
+    if (m_xResMgr)
+        pXSLTResMgr = nullptr;
 }
 
-#define RESID(x) ResId(x, *getXSLTDialogResMgr().get())
+#define RESID(x) ResId(x, *getXSLTDialogResMgr())
 #define RESIDSTR(x) RESID(x).toString()
 
 XMLFilterSettingsDialog::XMLFilterSettingsDialog(vcl::Window* pParent,
@@ -246,7 +260,7 @@ void XMLFilterSettingsDialog::onNew()
     aTempInfo.maDocumentService = "com.sun.star.text.TextDocument";
 
     // execute XML Filter Dialog
-    ScopedVclPtrInstance< XMLFilterTabDialog > aDlg( this, *getXSLTDialogResMgr().get(), mxContext, &aTempInfo );
+    ScopedVclPtrInstance< XMLFilterTabDialog > aDlg( this, *getXSLTDialogResMgr(), mxContext, &aTempInfo );
     if ( aDlg->Execute() == RET_OK )
     {
         // insert the new filter
@@ -265,7 +279,7 @@ void XMLFilterSettingsDialog::onEdit()
         filter_info_impl* pOldInfo = static_cast<filter_info_impl*>(pEntry->GetUserData());
 
         // execute XML Filter Dialog
-        ScopedVclPtrInstance< XMLFilterTabDialog > aDlg( this, *getXSLTDialogResMgr().get(), mxContext, pOldInfo );
+        ScopedVclPtrInstance< XMLFilterTabDialog > aDlg( this, *getXSLTDialogResMgr(), mxContext, pOldInfo );
         if ( aDlg->Execute() == RET_OK )
         {
             filter_info_impl* pNewInfo = aDlg->getNewFilterInfo();
diff --git a/filter/source/xsltdialog/xmlfiltersettingsdialog.hxx b/filter/source/xsltdialog/xmlfiltersettingsdialog.hxx
index 24617d0261fd..5105c67936c2 100644
--- a/filter/source/xsltdialog/xmlfiltersettingsdialog.hxx
+++ b/filter/source/xsltdialog/xmlfiltersettingsdialog.hxx
@@ -55,11 +55,20 @@ public:
     virtual bool EventNotify( NotifyEvent& rNEvt ) override;
 };
 
+class EnsureResMgr
+{
+    std::unique_ptr<ResMgr> m_xResMgr;
+public:
+    EnsureResMgr();
+    ~EnsureResMgr();
+};
+
 class HeaderBar;
 
 class XMLFilterListBox : public SvTabListBox
 {
 private:
+    EnsureResMgr       m_aEnsureResMgr;
     VclPtr<HeaderBar>  m_pHeaderBar;
 
     DECL_LINK( TabBoxScrollHdl_Impl, SvTreeListBox*, void );
@@ -118,7 +127,7 @@ private:
     OUString createUniqueInterfaceName( const OUString& rInterfaceName );
 
 private:
-
+    EnsureResMgr                                          maEnsureResMgr;
     css::uno::Reference< css::uno::XComponentContext >    mxContext;
     css::uno::Reference< css::container::XNameContainer > mxFilterContainer;
     css::uno::Reference< css::container::XNameContainer > mxTypeDetection;