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/**
* @file llviewerhelp.h
* @brief Utility functions for the Help system
* @author Tofu Linden
*
* $LicenseInfo:firstyear=2009&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, 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_LLVIEWERHELP_H
#define LL_LLVIEWERHELP_H
// The Help UI lives in llfloaterhelpbrowser, llviewerhelp provides a
// layer of abstraction that protects help-system-using code from the details of
// the Help UI floater and how help topics are converted into URLs.
#include "llhelp.h" // our abstract base
#include "llsingleton.h"
class LLUICtrl;
class LLViewerHelp : public LLHelp, public LLSingleton<LLViewerHelp>
{
friend class LLSingleton<LLViewerHelp>;
public:
/// display the specified help topic in the help viewer
/*virtual*/ void showTopic(const std::string &topic);
// return topic derived from viewer UI focus, else default topic
std::string getTopicFromFocus();
/// return default (fallback) topic name suitable for showTopic()
/*virtual*/ std::string defaultTopic();
// return topic to use before the user logs in
/*virtual*/ std::string preLoginTopic();
// return topic to use for the top-level help, invoked by F1
/*virtual*/ std::string f1HelpTopic();
private:
static void showHelp(); // make sure help UI is visible & raised
static void setRawURL(std::string url); // send URL to help UI
};
#endif // header guard
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