CCFileUtils.cpp

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#define __CC_PLATFORM_FILEUTILS_CPP__
#include "platform/CCFileUtilsCommon_cpp.h"
#include "support/zip_support/ZipUtils.h"

using namespace std;

NS_CC_BEGIN

#include "platform/CCCommon.h"
#include "jni/Java_org_cocos2dx_lib_Cocos2dxHelper.h"

static CCFileUtils* s_pFileUtils = NULL;
// record the zip on the resource path
static ZipFile *s_pZipFile = NULL;

CCFileUtils* CCFileUtils::sharedFileUtils()
{
    if (s_pFileUtils == NULL)
    {
        s_pFileUtils = new CCFileUtils();
        std::string resourcePath = getApkPath();
        s_pZipFile = new ZipFile(resourcePath, "assets/");
    }
    return s_pFileUtils;
}

void CCFileUtils::purgeFileUtils()
{
    if (s_pFileUtils != NULL)
    {
        s_pFileUtils->purgeCachedEntries();
    }

    CC_SAFE_DELETE(s_pZipFile);
    CC_SAFE_DELETE(s_pFileUtils);
}

void CCFileUtils::purgeCachedEntries()
{

}

const char* CCFileUtils::fullPathFromRelativePath(const char *pszRelativePath)
{
    return pszRelativePath;
}

const char* CCFileUtils::fullPathFromRelativeFile(const char *pszFilename, const char *pszRelativeFile)
{
    std::string relativeFile = pszRelativeFile;
    CCString *pRet = new CCString();
    pRet->autorelease();
    pRet->m_sString = relativeFile.substr(0, relativeFile.rfind('/')+1);
    pRet->m_sString += pszFilename;
    return pRet->m_sString.c_str();
}

unsigned char* CCFileUtils::getFileData(const char* pszFileName, const char* pszMode, unsigned long * pSize)
{    
    unsigned char * pData = 0;
    string fullPath(pszFileName);

    if ((! pszFileName) || (! pszMode))
    {
        return 0;
    }

    if (pszFileName[0] != '/')
    {
        // read from apk
        string pathWithoutDirectory = fullPath;
        
        fullPath.insert(0, m_obDirectory.c_str());
        fullPath.insert(0, "assets/");
        pData = s_pZipFile->getFileData(fullPath, pSize);
        
        if (! pData && m_obDirectory.size() > 0)
        {
            // search from root
            pathWithoutDirectory.insert(0, "assets/");
            pData = s_pZipFile->getFileData(pathWithoutDirectory, pSize);
        }
    }
    else
    {
        do 
        {
            // read rrom other path than user set it
            FILE *fp = fopen(pszFileName, pszMode);
            CC_BREAK_IF(!fp);

            unsigned long size;
            fseek(fp,0,SEEK_END);
            size = ftell(fp);
            fseek(fp,0,SEEK_SET);
            pData = new unsigned char[size];
            size = fread(pData,sizeof(unsigned char), size,fp);
            fclose(fp);

            if (pSize)
            {
                *pSize = size;
            }            
        } while (0);        
    }

    if (! pData && isPopupNotify())
    {
        std::string title = "Notification";
        std::string msg = "Get data from file(";
        msg.append(fullPath.c_str()).append(") failed!");
        CCMessageBox(msg.c_str(), title.c_str());
    }

    return pData;
}

string CCFileUtils::getWriteablePath()
{
    // Fix for Nexus 10 (Android 4.2 multi-user environment)
    // the path is retrieved through Java Context.getCacheDir() method
    string dir("");
    const char *tmp = getCacheDirectoryJNI();

    if (tmp)
    {
        dir.append(tmp).append("/");

        return dir;
    }
    else
    {
        return "";
    }
}

NS_CC_END