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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, Cinder Roxley
*
* $LicenseInfo:firstyear=2013&license=viewerlgpl$
* 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 LL_SYNTAXID_H
#define LL_SYNTAXID_H
#include "llviewerprecompiledheaders.h"
#include "llsingleton.h"
#include "lleventcoro.h"
#include "llcoros.h"
class fetchKeywordsFileResponder;
class LLSyntaxIdLSL : public LLSingleton<LLSyntaxIdLSL>
{
friend class LLSingleton<LLSyntaxIdLSL>;
friend class fetchKeywordsFileResponder;
private:
std::set<std::string> mInflightFetches;
typedef boost::signals2::signal<void()> syntax_id_changed_signal_t;
syntax_id_changed_signal_t mSyntaxIDChangedSignal;
boost::signals2::connection mRegionChangedCallback;
bool syntaxIdChanged();
bool isSupportedVersion(const LLSD& content);
void handleRegionChanged();
void handleCapsReceived(const LLUUID& region_uuid);
void setKeywordsXml(const LLSD& content) { mKeywordsXml = content; };
void buildFullFileSpec();
void fetchKeywordsFile(const std::string& filespec);
void loadDefaultKeywordsIntoLLSD();
void loadKeywordsIntoLLSD();
void fetchKeywordsFileCoro(std::string url, std::string fileSpec);
void cacheFile(const std::string &fileSpec, const LLSD& content_ref);
std::string mCapabilityURL;
std::string mFullFileSpec;
ELLPath mFilePath;
LLUUID mSyntaxId;
LLSD mKeywordsXml;
public:
LLSyntaxIdLSL();
void initialize();
bool keywordFetchInProgress();
LLSD getKeywordsXML() const { return mKeywordsXml; };
boost::signals2::connection addSyntaxIDCallback(const syntax_id_changed_signal_t::slot_type& cb);
};
#endif // LLSYNTAXID_H
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