tdf#91652 - store PDF FilterConfigItem options in dispose.

Change-Id: I808aeab8fdac35330de24970b873f49e22c52c6a
Reviewed-on: https://gerrit.libreoffice.org/15946Tested-by: Jenkins <ci@libreoffice.org>
Tested-by: Michael Meeks <michael.meeks@collabora.com>
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>
(cherry picked from commit fee29fde)

filter/source/pdf/impdialog.cxx

@@ -325,6 +325,8 @@ void ImpPDFTabDialog::dispose()
     RemoveTabPage(mnLinksPage);
     RemoveTabPage(mnSecurityPageId);
     RemoveTabPage(mnSigningPageId);
+    maConfigItem.WriteModifiedConfig();
+    maConfigI18N.WriteModifiedConfig();
     SfxTabDialog::dispose();
 }
 

include/vcl/FilterConfigItem.hxx

@@ -60,7 +60,10 @@ public :
     FilterConfigItem( const OUString& rSubTree );
     FilterConfigItem( ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >* pFilterData );
     FilterConfigItem( const OUString& rSubTree, ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue >* pFilterData );
+    /// Writes config in destructor
     ~FilterConfigItem();
+    /// Writes config and sets unmodified state again.
+    void WriteModifiedConfig();
 
     // all read methods are trying to return values in following order:
     // 1. FilterData PropertySequence

vcl/source/filter/FilterConfigItem.cxx

@@ -168,6 +168,11 @@ FilterConfigItem::FilterConfigItem( const OUString& rSubTree,
 };
 
 FilterConfigItem::~FilterConfigItem()
+{
+    WriteModifiedConfig();
+}
+
+void FilterConfigItem::WriteModifiedConfig()
 {
     if ( xUpdatableView.is() )
     {
@@ -179,6 +184,7 @@ FilterConfigItem::~FilterConfigItem()
                 try
                 {
                     xUpdateControl->commitChanges();
+                    bModified = false;
                 }
                 catch ( ::com::sun::star::uno::Exception& )
                 {