macff.cpp

来自「著名的 helix realplayer 基于手机 symbian 系统的 播放」· C++ 代码 · 共 297 行

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#include <string.h>
#include "platform/mac/macff.h"
#include "pn_morefiles.h"
#include "hxstrutl.h"
#include "hxstring.h"
#include "fullpathname.h"

#ifndef _CARBON
#include "morefilesextras.h" // for FSpGetDirectoryID, which is in pn_morefiles under Carbon
#endif

#ifndef _MAX_PATH
#define _MAX_PATH 255
#endif

CMacFindFile::CMacFindFile (	const char *path,
				const char *delimiter,
				const char *pattern) :
    CFindFile (path, delimiter, pattern)
{
    m_pCurrentDirectory	    = NULL;
    m_pCurrentFileName	    = new char[_MAX_PATH];
    *m_pCurrentFileName = 0;
    m_pNextFileName	    = new char[_MAX_PATH];
    *m_pNextFileName = 0;
    m_nIndex = 0;
    m_VRefNum = 0;
    m_DirID = 0;
}

CMacFindFile::~CMacFindFile()
{
    if (m_pCurrentDirectory)
    {
	delete [] m_pCurrentDirectory;
	m_pCurrentDirectory = 0;
    }

    if (m_pCurrentFileName)
    {
	delete [] m_pCurrentFileName;
	m_pCurrentFileName = 0;
    }

    if (m_pNextFileName)
    {
	delete [] m_pNextFileName;
	m_pNextFileName = 0;
    }
}

//
// Open the directory; initialize the directory handle.
// Return FALSE if the directory couldn't be opened.
//
BOOL CMacFindFile::OS_OpenDirectory (const char *dirname)
{
    BOOL bReturn = FALSE;
    
    if (m_pCurrentDirectory)
    {
	delete [] m_pCurrentDirectory;
	m_pCurrentDirectory = 0;
    }

    UINT16 ulPatLen = 0;

    /* 1 for \ and 1 for NULL at end */
    m_pCurrentDirectory = new char[strlen(dirname) + ulPatLen + 2];
    if (!m_pCurrentDirectory)
	return FALSE;

    strcpy(m_pCurrentDirectory, dirname); /* Flawfinder: ignore */

    FSSpec dirSpec;
    OSErr err = FSSpecFromPathName (dirname, &dirSpec); 
    if (err == noErr)
    {
	Boolean isDir;
	
	m_VRefNum = dirSpec.vRefNum;
	
	err = FSpGetDirectoryID(&dirSpec, &m_DirID, &isDir);
    }
    
    if (err == noErr)
    {
	m_nIndex = 0;
	bReturn = TRUE;
	BOOL bContinue;
	FSSpec nextFSpec;
	while (noErr == FSpGetNthDirectoryItem(m_VRefNum, m_DirID, ++m_nIndex, &nextFSpec))
	{
	    bContinue = TRUE;
	    if (!m_pNextFileName)
	    {
		m_pNextFileName	    = new char[_MAX_PATH];
		if (!m_pNextFileName)
		{
		    return FALSE;
		}
		*m_pNextFileName = 0;
	    }
	    
	    if (!m_pCurrentFileName)
	    {
		m_pCurrentFileName	    = new char[_MAX_PATH];
		if (!m_pCurrentFileName)
		{
		    return FALSE;
		}
		*m_pCurrentFileName = 0;
	    }
	    // matches pattern?
	    int len = nextFSpec.name[0];
	    INT16 patternLen = strlen(m_pattern)-1;
	    if (0 == strcmp("*.*", m_pattern))
	    	bContinue = TRUE;
	    else
	    {
	    if (m_pattern[0] == '*')
	    {
		    if (0 != strncasecmp((char*)&nextFSpec.name[len-patternLen+1], &m_pattern[1], patternLen))
		    	bContinue = FALSE;
	    }
	    else if (m_pattern[patternLen-1] == '*')
	    {
	    	    if (0 != strncasecmp((char*)&nextFSpec.name[1], &m_pattern[0], patternLen))
	    	    	bContinue = FALSE;
	    }
	    else if (strncasecmp((char*)&nextFSpec.name[1], &m_pattern[0], patternLen))
	    	bContinue = FALSE;
	    }
	    
	    if (bContinue)
	    {
	    	CHXString tempStr;
	    	tempStr = nextFSpec; // copy full path
	    	SafeStrCpy(m_pNextFileName, (const char*)tempStr, _MAX_PATH);
	    	return TRUE;
	    }
	}
    }
    // if we haven't returned yet, return TRUE if dir is valid & no pattern supplied
    if (bReturn)
    {
    	if (m_pattern)
    	    bReturn = FALSE;
    }
    return bReturn;
}

//
// Get the next file in the directory. Filters according to pattern
//
char* CMacFindFile::OS_GetNextFile()
{
    if (m_pNextFileName)
    {
	SafeStrCpy(m_pCurrentFileName, m_pNextFileName, _MAX_PATH);
    }
    else
    {
	if (m_pCurrentFileName)
	{
	    delete [] m_pCurrentFileName;
	    m_pCurrentFileName = NULL;
	}
    }
    
    if (m_pNextFileName)
    {
	FSSpec nextFSpec;
	BOOL bContinue;
	BOOL bFound = FALSE;
	INT16 len = 0;
	while (noErr == FSpGetNthDirectoryItem(m_VRefNum, m_DirID, ++m_nIndex, &nextFSpec))
	{
	    bContinue = TRUE;
	    // matches pattern(extension)? (eg. DLL)
	    len = nextFSpec.name[0]; // pascal str
	    if (m_pattern)
	    {
		INT16 patternLen = strlen(m_pattern)-1;
	    	if (0 == strcmp("*.*", m_pattern))
	    	    bContinue = TRUE;
	    	else
	    	{
		if (m_pattern[0] == '*')
		{
		    if (0 != strncasecmp((char*)&nextFSpec.name[len-patternLen+1], &m_pattern[1], patternLen))
		    	bContinue = FALSE;
		}
		else if (m_pattern[patternLen-1] == '*')
		{
	    	    if (0 != strncasecmp((char*)&nextFSpec.name[1], &m_pattern[0], patternLen))
	    	    	bContinue = FALSE;
	    	}
	    	}
	    }
	    if (bContinue)
	    {
	    	CHXString tempStr;
	    	tempStr = nextFSpec; // copy full path
	        SafeStrCpy(m_pNextFileName, (const char*)tempStr, _MAX_PATH);
	    	bFound = TRUE;
	    	break;
	    }
	}
	if (!bFound)
	{
	    delete [] m_pNextFileName;
	    m_pNextFileName = 0;
	}
    }
#ifdef _CARBON
	//xxxbobclark I think this is crashing because on the final iteration
	// it's an empty string and is thus returning nil somehow.

	static char* sEmptyString = "\0";
	
	char* curFName = m_pCurrentFileName;
	if (!curFName)
	{
		curFName = sEmptyString;
	}
    char* fName = strrchr(curFName,':');
#else
    char* fName = strrchr(m_pCurrentFileName,':');
#endif
    if (fName) 
    	++fName;
    else
    	fName = m_pCurrentFileName;
    return fName;
}

//
// release the directory
//
void CMacFindFile::OS_CloseDirectory ()
{
    return;
}

BOOL CMacFindFile::OS_InitPattern ()
{
    return TRUE;
}

BOOL CMacFindFile::OS_FileMatchesPattern (const char * fname)
{
    return TRUE;
}

void CMacFindFile::OS_FreePattern ()
{
    return;
}

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