CMUtilsAEFile.cp

//**************************************************************************************
// Filename:	CMUtilsAEFile.cp
//				Part of Contextual Menu Workshop by Abracode Inc.
//				http://free.abracode.com/cmworkshop/
//
// Copyright © 2002-2003 Abracode, Inc.  All rights reserved.
//
// Description:	static utilities for Contextual Menu Plugins
//
//
//**************************************************************************************

#include "CMUtils.h"
#include "DebugSettings.h"
#include "StAEDesc.h"

OSErr
CMUtils::GetFSSpec(const AEDesc &inDesc, FSSpec &outSpec)
{
	OSErr err = fnfErr;

	if( (inDesc.descriptorType == typeFSS) && (inDesc.dataHandle != NULL) )
	{//no need to coerce
		err = ::AEGetDescData( &inDesc, &outSpec, sizeof(FSSpec) );
	}
	else if( (inDesc.descriptorType != typeNull) && (inDesc.dataHandle != NULL) )
	{
		StAEDesc coercedSpec;
		err = ::AECoerceDesc( &inDesc, typeFSS, coercedSpec );
		if(err == noErr)
		{
			err = ::AEGetDescData( coercedSpec, &outSpec, sizeof(FSSpec) );
		}
		else
		{
			DEBUG_STR( "\p\tUnable to coerce to FSSpec..." );
		}
	}

	return err;
}



OSErr
CMUtils::GetFSRef(const AEDesc &inDesc, FSRef &outRef)
{
	OSErr err = fnfErr;

	if( (inDesc.descriptorType == typeFSRef) && (inDesc.dataHandle != NULL) )
	{//no need to coerce
		TRACE_STR( "\p\tCMUtils::FSRefGetRef without coercing..." );
		err = ::AEGetDescData( &inDesc, &outRef, sizeof(FSRef) );
	}
	else if( (inDesc.descriptorType != typeNull) && (inDesc.dataHandle != NULL) )
	{
		StAEDesc coercedRef;
		err = ::AECoerceDesc( &inDesc, typeFSRef, coercedRef );
		if(err == noErr)
		{
			TRACE_STR( "\p\tCMUtils::FSRefGetRef with coercing..." );
			err = ::AEGetDescData( coercedRef, &outRef, sizeof(FSRef) );
		}
		else
		{// Cannot get an FSRef. Try getting an FSSpec and make an FSRef out of it.
			FSSpec theSpec;
			err = CMUtils::GetFSSpec(inDesc, theSpec);
			if(err == noErr)
			{
				err = ::FSpMakeFSRef( &theSpec, &outRef );
			}
			else
			{
				DEBUG_STR( "\p\tUnable to coerce to FSRef..." );
			}
		}
	}

	return err;
}