axmol/cocos2dx/platform/android/CCFileUtils.cpp

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

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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();
        s_pFileUtils->init();
        std::string resourcePath = getApkPath();
        s_pZipFile = new ZipFile(resourcePath, "assets/");
    }
    return s_pFileUtils;
}

bool CCFileUtils::init()
{
    m_pSearchPathArray = new CCArray();
    m_pSearchPathArray->addObject(CCString::create(""));
    
    m_pSearchResolutionsOrderArray = new CCArray();
    m_pSearchResolutionsOrderArray->addObject(CCString::create(""));

    return true;
}

void CCFileUtils::purgeFileUtils()
{
    if (s_pFileUtils != NULL)
    {
        s_pFileUtils->purgeCachedEntries();
    }
    CC_SAFE_RELEASE(s_pFileUtils->m_pFilenameLookupDict);
    CC_SAFE_RELEASE(s_pFileUtils->m_pSearchPathArray);
    CC_SAFE_RELEASE(s_pFileUtils->m_pSearchResolutionsOrderArray);
    CC_SAFE_DELETE(s_pZipFile);
    CC_SAFE_DELETE(s_pFileUtils);
}

void CCFileUtils::purgeCachedEntries()
{

}

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

const char* CCFileUtils::fullPathForFilename(const char* pszFileName)
{
    if (pszFileName == NULL || pszFileName[0] == '\0') {
        return pszFileName;
    }

    return CCString::create(getNewFilename(pszFileName).c_str())->getCString();
}

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 += getNewFilename(pszFilename);
    return pRet->m_sString.c_str();
}

void CCFileUtils::loadFilenameLookupDictionaryFromFile(const char* filename)
{
    const char* pFullPath = this->fullPathForFilename(filename);
    if (pFullPath)
    {
        CCDictionary* pDict = CCDictionary::createWithContentsOfFile(filename);
        if (pDict)
        {
            CCDictionary* pMetadata = (CCDictionary*)pDict->objectForKey("metadata");
            int version = ((CCString*)pMetadata->objectForKey("version"))->intValue();
            if (version != 1)
            {
                CCLOG("cocos2d: ERROR: Invalid filenameLookup dictionary version: %ld. Filename: %s", (long)version, filename);
                return;
            }
            
            setFilenameLookupDictionary((CCDictionary*)pDict->objectForKey("filenames"));
        }
    }
}

std::string CCFileUtils::getPathForFilename(const std::string& filename, const std::string& resourceDirectory, const std::string& searchPath)
{
    std::string ret = "assets/";
  
    std::string file = filename;
    std::string file_path = "";
    size_t pos = filename.find_last_of("/");
    if (pos != std::string::npos)
    {
        file_path = filename.substr(0, pos+1);
        file = filename.substr(pos+1);
    }
    
  // searchPath + file_path + resourceDirectory
    std::string path = searchPath;
    if (path.size() > 0 && path[path.length()-1] != '/')
    {
        path += "/";
    }
    path += file_path;
    path += resourceDirectory;
    
    if (path.size() > 0 && path[path.length()-1] != '/')
    {
        path += "/";
    }
    path += file;
    ret += path;

    CCLog("full path = %s", ret.c_str());
    return ret;
}

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

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

    string fullpath;

    if (pszFileName[0] != '/')
    {
        // read from apk
        bool bFound = false;
        CCObject* pSearchObj = NULL;
        CCARRAY_FOREACH(m_pSearchPathArray, pSearchObj)
        {
            CCString* pSearchPath = (CCString*)pSearchObj;
            
            CCObject* pResourceDirObj = NULL;
            CCARRAY_FOREACH(m_pSearchResolutionsOrderArray, pResourceDirObj)
            {
                CCString* pResourceDirectory = (CCString*)pResourceDirObj;
                // Search in subdirectories
                fullpath = this->getPathForFilename(pszFileName, pResourceDirectory->getCString(), pSearchPath->getCString());
                                               
                pData = s_pZipFile->getFileData(fullpath.c_str(), pSize);
                
                if (pData)
                {
                    bFound = true;
                    break;
                }
            }
            if (bFound)
            {
                break;
            }
        }
    }
    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