axmol/cocos2dx/platform/android/CCFileUtils.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

http://www.cocos2d-x.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/

#define __CC_PLATFORM_FILEUTILS_CPP__
#include "CCFileUtilsCommon_cpp.h"

using namespace std;

NS_CC_BEGIN

#include "CCCommon.h"
#include "jni/SystemInfoJni.h"

// record the resource path
static string s_strResourcePath = "";
    
static CCFileUtils* s_pFileUtils = NULL;

CCFileUtils* CCFileUtils::sharedFileUtils()
{
    if (s_pFileUtils == NULL)
    {
        s_pFileUtils = new CCFileUtils();
    }
    return s_pFileUtils;
}

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

    CC_SAFE_DELETE(s_pFileUtils);
}

void CCFileUtils::purgeCachedEntries()
{

}

/*
 * This function is implemented for jni to set apk path.
 */
void CCFileUtils::setResourcePath(const char* pszResourcePath)
{
    CCAssert(pszResourcePath != NULL, "[FileUtils setRelativePath] -- wrong relative path");
    
    string tmp(pszResourcePath);

    if ((! pszResourcePath) || tmp.find(".apk") == string::npos)
    {
        return;
    }

    s_strResourcePath = pszResourcePath;
}

const char* CCFileUtils::fullPathFromRelativePath(const char *pszRelativePath,
                                                  ccResolutionType *pResolutionType)
{
    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
        fullPath.insert(0, "assets/");
        pData =  CCFileUtils::getFileDataFromZip(s_strResourcePath.c_str(), fullPath.c_str(), 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()
{
    // the path is: /data/data/ + package name
    string dir("/data/data/");
    const char *tmp = getPackageNameJNI();

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

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

NS_CC_END