169 lines
4.3 KiB
C++
169 lines
4.3 KiB
C++
/**
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* @file llviewerhelp.cpp
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* @brief Utility functions for the Help system
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* @author Tofu Linden
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*
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* $LicenseInfo:firstyear=2009&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "llviewerprecompiledheaders.h"
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#include "llcommandhandler.h"
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#include "llfloaterhelpbrowser.h"
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#include "llfloaterreg.h"
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#include "llfocusmgr.h"
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#include "llviewercontrol.h"
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#include "llappviewer.h"
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#include "lllogininstance.h"
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#include "llviewerhelputil.h"
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#include "llviewerhelp.h"
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// support for secondlife:///app/help/{TOPIC} SLapps
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class LLHelpHandler : public LLCommandHandler
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{
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public:
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// requests will be throttled from a non-trusted browser
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LLHelpHandler() : LLCommandHandler("help", UNTRUSTED_THROTTLE) {}
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bool handle(const LLSD& params, const LLSD& query_map, LLMediaCtrl* web)
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{
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LLViewerHelp* vhelp = LLViewerHelp::getInstance();
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if (! vhelp)
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{
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return false;
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}
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// get the requested help topic name, or use the fallback if none
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std::string help_topic = vhelp->defaultTopic();
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if (params.size() >= 1)
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{
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help_topic = params[0].asString();
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}
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vhelp->showTopic(help_topic);
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return true;
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}
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};
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LLHelpHandler gHelpHandler;
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//////////////////////////////
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// implement LLHelp interface
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void LLViewerHelp::showTopic(const std::string &topic)
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{
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// allow overriding the help server with a local help file
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if( gSavedSettings.getBOOL("HelpUseLocal") )
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{
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showHelp();
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LLFloaterHelpBrowser* helpbrowser = dynamic_cast<LLFloaterHelpBrowser*>(LLFloaterReg::getInstance("help_browser"));
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helpbrowser->navigateToLocalPage( "help-offline" , "index.html" );
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return;
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}
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// if the help topic is empty, use the default topic
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std::string help_topic = topic;
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if (help_topic.empty())
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{
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help_topic = defaultTopic();
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}
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// f1 help topic means: if the user is not logged in yet, show
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// the pre-login topic instead of the default fallback topic,
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// otherwise show help for the focused item
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if (help_topic == f1HelpTopic())
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{
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help_topic = getTopicFromFocus();
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if (help_topic == defaultTopic() && ! LLLoginInstance::getInstance()->authSuccess())
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{
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help_topic = preLoginTopic();
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}
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}
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// work out the URL for this topic and display it
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showHelp();
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std::string helpURL = LLViewerHelpUtil::buildHelpURL( help_topic );
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setRawURL(helpURL);
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}
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std::string LLViewerHelp::defaultTopic()
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{
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// *hack: to be done properly
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return "this_is_fallbacktopic";
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}
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std::string LLViewerHelp::preLoginTopic()
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{
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// *hack: to be done properly
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return "pre_login_help";
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}
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std::string LLViewerHelp::f1HelpTopic()
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{
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// *hack: to be done properly
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return "f1_help";
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}
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//////////////////////////////
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// our own interfaces
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std::string LLViewerHelp::getTopicFromFocus()
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{
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// use UI element with viewer's keyboard focus as basis for searching
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LLUICtrl* focused = dynamic_cast<LLUICtrl*>(gFocusMgr.getKeyboardFocus());
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if (focused)
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{
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std::string topic;
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if (focused->findHelpTopic(topic))
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{
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return topic;
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}
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}
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// didn't find a help topic in the UI hierarchy for focused
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// element, return the fallback topic name instead.
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return defaultTopic();
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}
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// static
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void LLViewerHelp::showHelp()
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{
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LLFloaterReg::showInstance("help_browser");
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}
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// static
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void LLViewerHelp::setRawURL(std::string url)
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{
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LLFloaterHelpBrowser* helpbrowser = dynamic_cast<LLFloaterHelpBrowser*>(LLFloaterReg::getInstance("help_browser"));
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if (helpbrowser)
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{
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helpbrowser->openMedia(url);
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}
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else
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{
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llwarns << "Eep, help_browser floater not found" << llendl;
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}
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}
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