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/**
* @file llsyntaxid.h
* @brief Contains methods to access the LSLSyntaxId feature and LSLSyntax capability
* to use the appropriate syntax file for the current region's LSL version.
* @author Ima Mechanique
*
* $LicenseInfo:firstyear=2013&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2013, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#ifndef LLSYSNTAXIDLSL_H
#define LLSYSNTAXIDLSL_H
#endif // LLSYSNTAXIDLSL_H
#include "llviewerprecompiledheaders.h"
#include "llagent.h"
#include "llenvmanager.h"
#include "llhttpclient.h"
#include "llsingleton.h"
#include "llviewerregion.h"
/**
* @file llsyntaxid.h
* @brief Tracks the file needed to decorate the current sim's version of LSL.
*/
class LLSyntaxIdLSL: public LLSingleton<LLSyntaxIdLSL>
{
friend class fetchKeywordsFileResponder;
public:
typedef boost::signals2::signal<void()> file_fetched_signal_t;
static const std::string CAPABILITY_NAME;
static const std::string FILENAME_DEFAULT;
static const std::string SIMULATOR_FEATURE;
protected:
//LLViewerRegion* region;
static bool sInitialised;
static LLSD sKeywordsXml;
static bool sLoaded;
static bool sLoadFailed;
static bool sVersionChanged;
static file_fetched_signal_t sFileFetchedSignal;
private:
std::string mCapabilityName;
std::string mCapabilityURL;
std::string mFileNameCurrent;
std::string mFileNameDefault;
std::string mFileNameNew;
ELLPath mFilePath;
std::string mFullFileSpec;
std::string mSimulatorFeature;
LLUUID mSyntaxIdCurrent;
LLUUID mSyntaxIdNew;
public:
LLSyntaxIdLSL();
LLSyntaxIdLSL(std::string filenameDefault, std::string simFeatureName, std::string capabilityName);
bool checkSyntaxIdChanged();
bool fetching();
std::string getFileNameCurrent() const { return mFileNameCurrent; }
ELLPath getFilePath() const { return mFilePath; }
std::string getFileSpec() const { return mFullFileSpec; }
LLSD getKeywordsXML() const { return sKeywordsXml; }
LLUUID getSyntaxId() const { return mSyntaxIdCurrent; }
bool isDifferentVersion() const { return sVersionChanged; }
bool isInitialised() const { return sInitialised; }
void initialise();
bool isLoaded() { return sLoaded; }
static bool isSupportedVersion(const LLSD& content);
static void setKeywordsXml(const LLSD& content) { sKeywordsXml = content; }
boost::signals2::connection addFileFetchedCallback(const file_fetched_signal_t::slot_type& cb);
void removeFileFetchedCallback(boost::signals2::connection callback);
protected:
std::string buildFileNameNew();
std::string buildFullFileSpec();
void fetchKeywordsFile();
void loadDefaultKeywordsIntoLLSD();
void loadKeywordsIntoLLSD();
void setSyntaxId(LLUUID SyntaxId) { mSyntaxIdCurrent = SyntaxId; }
void setFileNameCurrent(std::string& name) { mFileNameCurrent = name; }
void setFileNameDefault(std::string& name) { mFileNameDefault = name; }
void setFileNameNew(std::string name) { mFileNameNew = name; }
// void setSimulatorFeatureName(const std::string& name) { mSimulatorFeature = name; }
};
/**
* @file llsyntaxid.h
* @brief Handles responses for the LSLSyntax capability's get call. Is a friend of LLSyntaxIdLSL
*/
class fetchKeywordsFileResponder : public LLHTTPClient::Responder
{
public:
std::string mFileSpec;
/**
* @brief fetchKeywordsFileResponder
* @param filespec File path and name of where to save the returned data
*/
fetchKeywordsFileResponder(std::string filespec);
void errorWithContent(U32 status,
const std::string& reason,
const LLSD& content);
/**
* @brief Checks the returned LLSD for version and stores it in the LLSyntaxIdLSL object.
* @param content_ref The returned LLSD.
*/
void result(const LLSD& content_ref);
/**
* @brief Saves the returned file to the location provided at instantiation.
* Could be extended to manage cached entries.
* @param content_ref The LSL syntax file for the sim.
*/
void cacheFile(const LLSD& content_ref);
};
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