axmol/cocos/base/CCUserDefault-winrt.cpp

/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2013-2014 Chukong Technologies Inc.

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#include "base/CCUserDefault.h"
#include "platform/CCCommon.h"
#include "base/base64.h"
#include "base/ccUtils.h"

#if (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)
#include "CCWinRTUtils.h"

using namespace Windows::Storage;
using namespace Windows::Foundation;
using namespace std;

#define XML_FILE_NAME "UserDefault.xml"

NS_CC_BEGIN


/**
 * WinRT implementation of UserDefault
 */

UserDefault* UserDefault::_userDefault = nullptr;
string UserDefault::_filePath = string("");
bool UserDefault::_isFilePathInitialized = false;

UserDefault::~UserDefault()
{
}

UserDefault::UserDefault()
{
}

Platform::Object^ getPlatformKeyValue(const char* pKey)
{
    // check key
    if (!pKey)
    {
        return nullptr;
    }

    ApplicationDataContainer^ localSettings = ApplicationData::Current->LocalSettings;
    auto key = PlatformStringFromString(pKey);
    auto values = localSettings->Values;

    if (values->HasKey(key))
    {
        return values->Lookup(key);
    }

    return nullptr;
}

void setPlatformKeyValue(const char* pKey, PropertyValue^ value)
{
    // check key
    if (!pKey)
    {
        return;
    }

    ApplicationDataContainer^ localSettings = ApplicationData::Current->LocalSettings;
    auto values = localSettings->Values;
    values->Insert(PlatformStringFromString(pKey), value);
}

bool UserDefault::getBoolForKey(const char* pKey)
{
    return getBoolForKey(pKey, false);
}

bool UserDefault::getBoolForKey(const char* pKey, bool defaultValue)
{
	bool ret = defaultValue;
    auto value = getPlatformKeyValue(pKey);
    if (value)
    {
        ret = safe_cast<bool>(value);
    }
	return ret;
}

int UserDefault::getIntegerForKey(const char* pKey)
{
    return getIntegerForKey(pKey, 0);
}

int UserDefault::getIntegerForKey(const char* pKey, int defaultValue)
{
    int ret = defaultValue;
    auto value = getPlatformKeyValue(pKey);
    if (value)
    {
        ret = safe_cast<int>(value);
    }
    return ret;
}

float UserDefault::getFloatForKey(const char* pKey)
{
    return getFloatForKey(pKey, 0.0f);
}

float UserDefault::getFloatForKey(const char* pKey, float defaultValue)
{
    float ret = (float)getDoubleForKey(pKey, (double)defaultValue);
 
    return ret;
}

double  UserDefault::getDoubleForKey(const char* pKey)
{
    return getDoubleForKey(pKey, 0.0);
}

double UserDefault::getDoubleForKey(const char* pKey, double defaultValue)
{
    double ret = defaultValue;
    auto value = getPlatformKeyValue(pKey);
    if (value)
    {
        ret = safe_cast<double>(value);
    }
    return ret;
}

std::string UserDefault::getStringForKey(const char* pKey)
{
    return getStringForKey(pKey, "");
}

string UserDefault::getStringForKey(const char* pKey, const std::string & defaultValue)
{
    string ret = defaultValue;
    auto value = getPlatformKeyValue(pKey);
    if (value)
    {
        auto result = safe_cast<Platform::String^>(value);
        ret = PlatformStringToString(result);
    }

    return ret;
}

Data UserDefault::getDataForKey(const char* pKey)
{
    return getDataForKey(pKey, Data::Null);
}

Data UserDefault::getDataForKey(const char* pKey, const Data& defaultValue)
{
    Data ret = defaultValue;
    std::string encodedData = getStringForKey(pKey,"");

    if (!encodedData.empty())
    {
        unsigned char* decodedData = nullptr;
        int decodedDataLen = base64Decode((unsigned char*) encodedData.c_str(), (unsigned int) encodedData.length(), &decodedData);
        if (decodedData && decodedDataLen > 0) 
        {
            ret.fastSet(decodedData, decodedDataLen);
        }
    }

    return ret;
}

void UserDefault::setBoolForKey(const char* pKey, bool value)
{
    // check key
    if (!pKey)
    {
        return;
    }

    setPlatformKeyValue(pKey, dynamic_cast<PropertyValue^>(PropertyValue::CreateBoolean(value)));
}

void UserDefault::setIntegerForKey(const char* pKey, int value)
{
    // check key
    if (! pKey)
    {
        return;
    }

    setPlatformKeyValue(pKey, dynamic_cast<PropertyValue^>(PropertyValue::CreateInt32(value)));
}

void UserDefault::setFloatForKey(const char* pKey, float value)
{
    setDoubleForKey(pKey, value);
}

void UserDefault::setDoubleForKey(const char* pKey, double value)
{
    // check key
    if (! pKey)
    {
        return;
    }

    setPlatformKeyValue(pKey, dynamic_cast<PropertyValue^>(PropertyValue::CreateDouble(value)));
}

void UserDefault::setStringForKey(const char* pKey, const std::string & value)
{
    // check key
    if (! pKey)
    {
        return;
    }

    setPlatformKeyValue(pKey, dynamic_cast<PropertyValue^>(PropertyValue::CreateString(PlatformStringFromString(value))));
}

void UserDefault::setDataForKey(const char* pKey, const Data& value) {
    // check key
    if (! pKey)
    {
        return;
    }

    char *encodedData = 0;
    base64Encode(value.getBytes(), static_cast<unsigned int>(value.getSize()), &encodedData);
    
    setPlatformKeyValue(pKey, dynamic_cast<PropertyValue^>(PropertyValue::CreateString(PlatformStringFromString(encodedData))));

    if (encodedData)
        free(encodedData);
}

UserDefault* UserDefault::getInstance()
{
    if (!_userDefault)
    {
        initXMLFilePath();

        // only create xml file one time
        // the file exists after the program exit
        if ((!isXMLFileExist()) && (!createXMLFile()))
        {
            return nullptr;
        }

        _userDefault = new (std::nothrow) UserDefault();
    }

    return _userDefault;
}

void UserDefault::destroyInstance()
{
    CC_SAFE_DELETE(_userDefault);
}

void UserDefault::setDelegate(UserDefault *delegate)
{
    if (_userDefault)
        delete _userDefault;

    _userDefault = delegate;
}


// FIXME:: deprecated
UserDefault* UserDefault::sharedUserDefault()
{
    return UserDefault::getInstance();
}

// FIXME:: deprecated
void UserDefault::purgeSharedUserDefault()
{
    return UserDefault::destroyInstance();
}

bool UserDefault::isXMLFileExist()
{
    //return FileUtils::getInstance()->isFileExist(_filePath);
    return true;
}

void UserDefault::initXMLFilePath()
{
    if (! _isFilePathInitialized)
    {
        _filePath += FileUtils::getInstance()->getWritablePath() + XML_FILE_NAME;
        _isFilePathInitialized = true;
    }    
}

// create new xml file
bool UserDefault::createXMLFile()
{
    return false;
}

const string& UserDefault::getXMLFilePath()
{
    return _filePath;
}

void UserDefault::flush()
{
}

NS_CC_END

#endif // (CC_TARGET_PLATFORM == CC_PLATFORM_WINRT)