tdf#115129 Add function on double click in Customize Dialog

Change-Id: I21a7f8b4fc05d55d1539a3fd148e5870899b1596
Reviewed-on: https://gerrit.libreoffice.org/48555Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>

cui/source/customize/cfg.cxx

@@ -1193,6 +1193,7 @@ SvxConfigPage::SvxConfigPage(vcl::Window *pParent, const SfxItemSet& rSet)
     m_pSearchEdit->SetUpdateDataHdl ( LINK( this, SvxConfigPage, SearchUpdateHdl ));
     m_pSearchEdit->EnableUpdateData();
 
+    m_pFunctions->SetDoubleClickHdl( LINK( this, SvxConfigPage, FunctionDoubleClickHdl ) );
     m_pFunctions->SetSelectHdl(
         LINK( this, SvxConfigPage, SelectFunctionHdl ) );
 }
@@ -1783,6 +1784,13 @@ IMPL_LINK( SvxConfigPage, MoveHdl, Button *, pButton, void )
     MoveEntry(pButton == m_pMoveUpButton);
 }
 
+IMPL_LINK_NOARG( SvxConfigPage, FunctionDoubleClickHdl, SvTreeListBox *, bool )
+{
+    if ( m_pAddCommandButton->IsEnabled() )
+        m_pAddCommandButton->Click();
+    return false;
+}
+
 IMPL_LINK_NOARG( SvxConfigPage, SelectFunctionHdl, SvTreeListBox *, void )
 {
     // Store the tooltip of the description field at first run

cui/source/inc/cfg.hxx

@@ -418,6 +418,7 @@ protected:
 
     DECL_LINK( MoveHdl, Button *, void );
     DECL_LINK( SelectFunctionHdl, SvTreeListBox *, void );
+    DECL_LINK( FunctionDoubleClickHdl, SvTreeListBox *, bool );
 
     virtual SaveInData* CreateSaveInData(
         const css::uno::Reference< css::ui::XUIConfigurationManager >&,