tdf#148806 doc vba: accept module AutoOpen.Main

This is the lowest priority way of running AutoOpen,
and it only applies to Word, not Excel.

There is some code in basic/source/classes/sb.cxx
that was somewhat finding this before it got lost in LO 7.4
with commit beb6c62e990599d91ac5d9183164c94d269027d3.

TODO: these AutoOpens should only run with a public sub,
not a private one.

Change-Id: I8a733cde13f96636942d84a0b05520692aac3e52
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/141094
Tested-by: Jenkins
Reviewed-by: Justin Luth <jluth@mail.com>
diff --git a/vbahelper/source/vbahelper/vbaeventshelperbase.cxx b/vbahelper/source/vbahelper/vbaeventshelperbase.cxx
index dbd345c..cbe8ca7 100644
--- a/vbahelper/source/vbahelper/vbaeventshelperbase.cxx
+++ b/vbahelper/source/vbahelper/vbaeventshelperbase.cxx
@@ -22,6 +22,7 @@
#include <com/sun/star/document/XEventBroadcaster.hpp>
#include <com/sun/star/frame/XModel.hpp>
#include <com/sun/star/script/ModuleType.hpp>
#include <com/sun/star/script/vba/VBAEventId.hpp>
#include <com/sun/star/script/vba/XVBAModuleInfo.hpp>
#include <com/sun/star/script/XLibraryContainer.hpp>
#include <com/sun/star/util/VetoException.hpp>
@@ -367,7 +368,22 @@ VbaEventsHelperBase::ModulePathMap& VbaEventsHelperBase::updateModulePathMap( co
    {
        const EventHandlerInfo& rInfo = rEventInfo.second;
        if( rInfo.mnModuleType == nModuleType )
            rPathMap[ rInfo.mnEventId ] = resolveVBAMacro( mpShell, maLibraryName, rModuleName, rInfo.maMacroName );
        {
            OUString sName = resolveVBAMacro(mpShell, maLibraryName, rModuleName,
                                             rInfo.maMacroName);
            // Only in Word (with lowest priority), an Auto* module can execute a "Public Sub Main"
            if (sName.isEmpty() && rModuleName.isEmpty()
                && getImplementationName() == "SwVbaEventsHelper")
            {
                if (rInfo.mnEventId == css::script::vba::VBAEventId::AUTO_NEW
                    || rInfo.mnEventId == css::script::vba::VBAEventId::AUTO_OPEN
                    || rInfo.mnEventId == css::script::vba::VBAEventId::AUTO_CLOSE)
                {
                    sName = resolveVBAMacro(mpShell, maLibraryName, rInfo.maMacroName, "Main");
                }
            }
            rPathMap[rInfo.mnEventId] = sName;
        }
    }
    return rPathMap;
}