llfloaterpreference.cpp

			panel->resetDirtyChilds();
		}
	}
}

void LLFloaterPreference::onClickActionChange()
{
    updateClickActionControls();
}

void LLFloaterPreference::onClickPermsDefault()
{
	LLFloaterReg::showInstance("perms_default");
}

void LLFloaterPreference::onClickRememberedUsernames()
{
    LLFloaterReg::showInstance("forget_username");
}

void LLFloaterPreference::onDeleteTranscripts()
{
	LLSD args;
	args["FOLDER"] = gDirUtilp->getUserName();

	LLNotificationsUtil::add("PreferenceChatDeleteTranscripts", args, LLSD(), boost::bind(&LLFloaterPreference::onDeleteTranscriptsResponse, this, _1, _2));
}

void LLFloaterPreference::onDeleteTranscriptsResponse(const LLSD& notification, const LLSD& response)
{
	if (0 == LLNotificationsUtil::getSelectedOption(notification, response))
	{
		LLLogChat::deleteTranscripts();
		updateDeleteTranscriptsButton();
	}
}

void LLFloaterPreference::onLogChatHistorySaved()
{
	LLButton * delete_transcripts_buttonp = getChild<LLButton>("delete_transcripts");

	if (!delete_transcripts_buttonp->getEnabled())
	{
		delete_transcripts_buttonp->setEnabled(true);
	}
}

void LLFloaterPreference::updateClickActionControls()
{
    const int single_clk_action = getChild<LLComboBox>("single_click_action_combo")->getValue().asInteger();
    const int double_clk_action = getChild<LLComboBox>("double_click_action_combo")->getValue().asInteger();

    // Todo: This is a very ugly way to get access to keybindings.
    // Reconsider possible options.
    // Potential option: make constructor of LLKeyConflictHandler private
    // but add a getter that will return shared pointer for specific
    // mode, pointer should only exist so long as there are external users.
    // In such case we won't need to do this 'dynamic_cast' nightmare.
    // updateTable() can also be avoided
    LLTabContainer* tabcontainer = getChild<LLTabContainer>("pref core");
    for (child_list_t::const_iterator iter = tabcontainer->getChildList()->begin();
        iter != tabcontainer->getChildList()->end(); ++iter)
    {
        LLView* view = *iter;
        LLPanelPreferenceControls* panel = dynamic_cast<LLPanelPreferenceControls*>(view);
        if (panel)
        {
            panel->setKeyBind("walk_to",
                              EMouseClickType::CLICK_LEFT,
                              KEY_NONE,
                              MASK_NONE,
                              single_clk_action == 1);
            
            panel->setKeyBind("walk_to",
                              EMouseClickType::CLICK_DOUBLELEFT,
                              KEY_NONE,
                              MASK_NONE,
                              double_clk_action == 1);
            
            panel->setKeyBind("teleport_to",
                              EMouseClickType::CLICK_DOUBLELEFT,
                              KEY_NONE,
                              MASK_NONE,
                              double_clk_action == 2);

            panel->updateAndApply();
        }
    }
}

void LLFloaterPreference::updateClickActionViews()
{
    bool click_to_walk = false;
    bool dbl_click_to_walk = false;
    bool dbl_click_to_teleport = false;

    // Todo: This is a very ugly way to get access to keybindings.
    // Reconsider possible options.
    LLTabContainer* tabcontainer = getChild<LLTabContainer>("pref core");
    for (child_list_t::const_iterator iter = tabcontainer->getChildList()->begin();
        iter != tabcontainer->getChildList()->end(); ++iter)
    {
        LLView* view = *iter;
        LLPanelPreferenceControls* panel = dynamic_cast<LLPanelPreferenceControls*>(view);
        if (panel)
        {
            click_to_walk = panel->canKeyBindHandle("walk_to",
                EMouseClickType::CLICK_LEFT,
                KEY_NONE,
                MASK_NONE);

            dbl_click_to_walk = panel->canKeyBindHandle("walk_to",
                EMouseClickType::CLICK_DOUBLELEFT,
                KEY_NONE,
                MASK_NONE);

            dbl_click_to_teleport = panel->canKeyBindHandle("teleport_to",
                EMouseClickType::CLICK_DOUBLELEFT,
                KEY_NONE,
                MASK_NONE);
        }
    }

	getChild<LLComboBox>("single_click_action_combo")->setValue((int)click_to_walk);
	getChild<LLComboBox>("double_click_action_combo")->setValue(dbl_click_to_teleport ? 2 : (int)dbl_click_to_walk);
}

void LLFloaterPreference::applyUIColor(LLUICtrl* ctrl, const LLSD& param)
{
	LLUIColorTable::instance().setColor(param.asString(), LLColor4(ctrl->getValue()));
}

void LLFloaterPreference::getUIColor(LLUICtrl* ctrl, const LLSD& param)
{
	LLColorSwatchCtrl* color_swatch = (LLColorSwatchCtrl*) ctrl;
	color_swatch->setOriginal(LLUIColorTable::instance().getColor(param.asString()));
}

void LLFloaterPreference::setCacheLocation(const LLStringExplicit& location)
{
	LLUICtrl* cache_location_editor = getChild<LLUICtrl>("cache_location");
	cache_location_editor->setValue(location);
	cache_location_editor->setToolTip(location);
}

void LLFloaterPreference::selectPanel(const LLSD& name)
{
	LLTabContainer * tab_containerp = getChild<LLTabContainer>("pref core");
	LLPanel * panel = tab_containerp->getPanelByName(name);
	if (NULL != panel)
	{
		tab_containerp->selectTabPanel(panel);
	}
}

void LLFloaterPreference::selectPrivacyPanel()
{
	selectPanel("im");
}

void LLFloaterPreference::selectChatPanel()
{
	selectPanel("chat");
}

void LLFloaterPreference::changed()
{
	getChild<LLButton>("clear_log")->setEnabled(LLConversationLog::instance().getConversations().size() > 0);

	// set 'enable' property for 'Delete transcripts...' button
	updateDeleteTranscriptsButton();

}

void LLFloaterPreference::saveGraphicsPreset(std::string& preset)
{
	mSavedGraphicsPreset = preset;
}

//------------------------------Updater---------------------------------------

static bool handleBandwidthChanged(const LLSD& newvalue)
{
	gViewerThrottle.setMaxBandwidth((F32) newvalue.asReal());
	return true;
}

class LLPanelPreference::Updater : public LLEventTimer
{

public:

	typedef boost::function<bool(const LLSD&)> callback_t;

	Updater(callback_t cb, F32 period)
	:LLEventTimer(period),
	 mCallback(cb)
	{
		mEventTimer.stop();
	}

	virtual ~Updater(){}

	void update(const LLSD& new_value)
	{
		mNewValue = new_value;
		mEventTimer.start();
	}

protected:

	BOOL tick()
	{
		mCallback(mNewValue);
		mEventTimer.stop();

		return FALSE;
	}

private:

	LLSD mNewValue;
	callback_t mCallback;
};
//----------------------------------------------------------------------------
static LLPanelInjector<LLPanelPreference> t_places("panel_preference");
LLPanelPreference::LLPanelPreference()
: LLPanel(),
  mBandWidthUpdater(NULL)
{
	mCommitCallbackRegistrar.add("Pref.setControlFalse",	boost::bind(&LLPanelPreference::setControlFalse,this, _2));
	mCommitCallbackRegistrar.add("Pref.updateMediaAutoPlayCheckbox",	boost::bind(&LLPanelPreference::updateMediaAutoPlayCheckbox, this, _1));
	mCommitCallbackRegistrar.add("Pref.PrefDelete",	boost::bind(&LLPanelPreference::deletePreset, this, _2));
	mCommitCallbackRegistrar.add("Pref.PrefSave",	boost::bind(&LLPanelPreference::savePreset, this, _2));
	mCommitCallbackRegistrar.add("Pref.PrefLoad",	boost::bind(&LLPanelPreference::loadPreset, this, _2));
}

//virtual
BOOL LLPanelPreference::postBuild()
{
	////////////////////// PanelGeneral ///////////////////
	if (hasChild("display_names_check", TRUE))
	{
		BOOL use_people_api = gSavedSettings.getBOOL("UsePeopleAPI");
		LLCheckBoxCtrl* ctrl_display_name = getChild<LLCheckBoxCtrl>("display_names_check");
		ctrl_display_name->setEnabled(use_people_api);
		if (!use_people_api)
		{
			ctrl_display_name->setValue(FALSE);
		}
	}

	////////////////////// PanelVoice ///////////////////
	if (hasChild("voice_unavailable", TRUE))
	{
		BOOL voice_disabled = gSavedSettings.getBOOL("CmdLineDisableVoice");
		getChildView("voice_unavailable")->setVisible( voice_disabled);
		getChildView("enable_voice_check")->setVisible( !voice_disabled);
	}
	
	//////////////////////PanelSkins ///////////////////
	
	if (hasChild("skin_selection", TRUE))
	{
		LLFloaterPreference::refreshSkin(this);

		// if skin is set to a skin that no longer exists (silver) set back to default
		if (getChild<LLRadioGroup>("skin_selection")->getSelectedIndex() < 0)
		{
			gSavedSettings.setString("SkinCurrent", "default");
			LLFloaterPreference::refreshSkin(this);
		}

	}

	//////////////////////PanelPrivacy ///////////////////
	if (hasChild("media_enabled", TRUE))
	{
		bool media_enabled = gSavedSettings.getBOOL("AudioStreamingMedia");
		
		getChild<LLCheckBoxCtrl>("media_enabled")->set(media_enabled);
		getChild<LLCheckBoxCtrl>("autoplay_enabled")->setEnabled(media_enabled);
	}
	if (hasChild("music_enabled", TRUE))
	{
		getChild<LLCheckBoxCtrl>("music_enabled")->set(gSavedSettings.getBOOL("AudioStreamingMusic"));
	}
	if (hasChild("voice_call_friends_only_check", TRUE))
	{
		getChild<LLCheckBoxCtrl>("voice_call_friends_only_check")->setCommitCallback(boost::bind(&showFriendsOnlyWarning, _1, _2));
	}
	if (hasChild("allow_multiple_viewer_check", TRUE))
	{
		getChild<LLCheckBoxCtrl>("allow_multiple_viewer_check")->setCommitCallback(boost::bind(&showMultipleViewersWarning, _1, _2));
	}
	if (hasChild("favorites_on_login_check", TRUE))
	{
		getChild<LLCheckBoxCtrl>("favorites_on_login_check")->setCommitCallback(boost::bind(&handleFavoritesOnLoginChanged, _1, _2));
		bool show_favorites_at_login = LLPanelLogin::getShowFavorites();
		getChild<LLCheckBoxCtrl>("favorites_on_login_check")->setValue(show_favorites_at_login);
	}
	if (hasChild("mute_chb_label", TRUE))
	{
		getChild<LLTextBox>("mute_chb_label")->setShowCursorHand(false);
		getChild<LLTextBox>("mute_chb_label")->setSoundFlags(LLView::MOUSE_UP);
		getChild<LLTextBox>("mute_chb_label")->setClickedCallback(boost::bind(&toggleMuteWhenMinimized));
	}

	//////////////////////PanelSetup ///////////////////
	if (hasChild("max_bandwidth"), TRUE)
	{
		mBandWidthUpdater = new LLPanelPreference::Updater(boost::bind(&handleBandwidthChanged, _1), BANDWIDTH_UPDATER_TIMEOUT);
		gSavedSettings.getControl("ThrottleBandwidthKBPS")->getSignal()->connect(boost::bind(&LLPanelPreference::Updater::update, mBandWidthUpdater, _2));
	}

#ifdef EXTERNAL_TOS
	LLRadioGroup* ext_browser_settings = getChild<LLRadioGroup>("preferred_browser_behavior");
	if (ext_browser_settings)
	{
		// turn off ability to set external/internal browser
		ext_browser_settings->setSelectedByValue(LLWeb::BROWSER_EXTERNAL_ONLY, true);
		ext_browser_settings->setEnabled(false);
	}
#endif

	apply();
	return true;
}

LLPanelPreference::~LLPanelPreference()
{
	if (mBandWidthUpdater)
	{
		delete mBandWidthUpdater;
	}
}
void LLPanelPreference::apply()
{
	// no-op
}

void LLPanelPreference::saveSettings()
{
	LLFloater* advanced = LLFloaterReg::findTypedInstance<LLFloater>("prefs_graphics_advanced");

	// Save the value of all controls in the hierarchy
	mSavedValues.clear();
	std::list<LLView*> view_stack;
	view_stack.push_back(this);
	if (advanced)
	{
		view_stack.push_back(advanced);
	}
	while(!view_stack.empty())
	{
		// Process view on top of the stack
		LLView* curview = view_stack.front();
		view_stack.pop_front();

		LLColorSwatchCtrl* color_swatch = dynamic_cast<LLColorSwatchCtrl *>(curview);
		if (color_swatch)
		{
			mSavedColors[color_swatch->getName()] = color_swatch->get();
		}
		else
		{
			LLUICtrl* ctrl = dynamic_cast<LLUICtrl*>(curview);
			if (ctrl)
			{
				LLControlVariable* control = ctrl->getControlVariable();
				if (control)
				{
					mSavedValues[control] = control->getValue();
				}
			}
		}
			
		// Push children onto the end of the work stack
		for (child_list_t::const_iterator iter = curview->getChildList()->begin();
			 iter != curview->getChildList()->end(); ++iter)
		{
			view_stack.push_back(*iter);
		}
	}	
}

void LLPanelPreference::showMultipleViewersWarning(LLUICtrl* checkbox, const LLSD& value)
{
    if (checkbox && checkbox->getValue())
    {
        LLNotificationsUtil::add("AllowMultipleViewers");
    }
}

void LLPanelPreference::showFriendsOnlyWarning(LLUICtrl* checkbox, const LLSD& value)
{
	if (checkbox && checkbox->getValue())
	{
		LLNotificationsUtil::add("FriendsAndGroupsOnly");
	}
}

void LLPanelPreference::handleFavoritesOnLoginChanged(LLUICtrl* checkbox, const LLSD& value)
{
	if (checkbox)
	{
		LLFavoritesOrderStorage::instance().showFavoritesOnLoginChanged(checkbox->getValue().asBoolean());
		if(checkbox->getValue())
		{
			LLNotificationsUtil::add("FavoritesOnLogin");
		}
	}
}

void LLPanelPreference::toggleMuteWhenMinimized()
{
	std::string mute("MuteWhenMinimized");
	gSavedSettings.setBOOL(mute, !gSavedSettings.getBOOL(mute));
	LLFloaterPreference* instance = LLFloaterReg::findTypedInstance<LLFloaterPreference>("preferences");
	if (instance)
	{
		instance->getChild<LLCheckBoxCtrl>("mute_when_minimized")->setBtnFocus();
	}
}

void LLPanelPreference::cancel()
{
	for (control_values_map_t::iterator iter =  mSavedValues.begin();
		 iter !=  mSavedValues.end(); ++iter)
	{
		LLControlVariable* control = iter->first;
		LLSD ctrl_value = iter->second;

		if((control->getName() == "InstantMessageLogPath") && (ctrl_value.asString() == ""))
		{
			continue;
		}

		control->set(ctrl_value);
	}

	for (string_color_map_t::iterator iter = mSavedColors.begin();
		 iter != mSavedColors.end(); ++iter)
	{
		LLColorSwatchCtrl* color_swatch = findChild<LLColorSwatchCtrl>(iter->first);
		if (color_swatch)
		{
			color_swatch->set(iter->second);
			color_swatch->onCommit();
		}
	}
}

void LLPanelPreference::setControlFalse(const LLSD& user_data)
{
	std::string control_name = user_data.asString();
	LLControlVariable* control = findControl(control_name);
	
	if (control)
		control->set(LLSD(FALSE));
}

void LLPanelPreference::updateMediaAutoPlayCheckbox(LLUICtrl* ctrl)
{
	std::string name = ctrl->getName();

	// Disable "Allow Media to auto play" only when both
	// "Streaming Music" and "Media" are unchecked. STORM-513.
	if ((name == "enable_music") || (name == "enable_media"))
	{
		bool music_enabled = getChild<LLCheckBoxCtrl>("enable_music")->get();
		bool media_enabled = getChild<LLCheckBoxCtrl>("enable_media")->get();

		getChild<LLCheckBoxCtrl>("media_auto_play_combo")->setEnabled(music_enabled || media_enabled);
	}
}

void LLPanelPreference::deletePreset(const LLSD& user_data)
{
	LLFloaterReg::showInstance("delete_pref_preset", user_data.asString());
}

void LLPanelPreference::savePreset(const LLSD& user_data)
{
	LLFloaterReg::showInstance("save_pref_preset", user_data.asString());
}

void LLPanelPreference::loadPreset(const LLSD& user_data)
{
	LLFloaterReg::showInstance("load_pref_preset", user_data.asString());
}

void LLPanelPreference::setHardwareDefaults()
{
}

class LLPanelPreferencePrivacy : public LLPanelPreference
{
public:
	LLPanelPreferencePrivacy()
	{
		mAccountIndependentSettings.push_back("VoiceCallsFriendsOnly");
		mAccountIndependentSettings.push_back("AutoDisengageMic");
	}

	/*virtual*/ void saveSettings()
	{
		LLPanelPreference::saveSettings();

		// Don't save (=erase from the saved values map) per-account privacy settings
		// if we're not logged in, otherwise they will be reset to defaults on log off.
		if (LLStartUp::getStartupState() != STATE_STARTED)
		{
			// Erase only common settings, assuming there are no color settings on Privacy page.
			for (control_values_map_t::iterator it = mSavedValues.begin(); it != mSavedValues.end(); )
			{
				const std::string setting = it->first->getName();
				if (find(mAccountIndependentSettings.begin(),
					mAccountIndependentSettings.end(), setting) == mAccountIndependentSettings.end())
				{
					mSavedValues.erase(it++);
				}
				else
				{
					++it;
				}
			}
		}
	}

private:
	std::list<std::string> mAccountIndependentSettings;
};

static LLPanelInjector<LLPanelPreferenceGraphics> t_pref_graph("panel_preference_graphics");
static LLPanelInjector<LLPanelPreferencePrivacy> t_pref_privacy("panel_preference_privacy");

BOOL LLPanelPreferenceGraphics::postBuild()
{
	LLFloaterReg::showInstance("prefs_graphics_advanced");
	LLFloaterReg::hideInstance("prefs_graphics_advanced");

	resetDirtyChilds();
	setPresetText();

	LLPresetsManager* presetsMgr = LLPresetsManager::getInstance();
    presetsMgr->setPresetListChangeCallback(boost::bind(&LLPanelPreferenceGraphics::onPresetsListChange, this));
    presetsMgr->createMissingDefault(PRESETS_GRAPHIC); // a no-op after the first time, but that's ok
    
	return LLPanelPreference::postBuild();
}

void LLPanelPreferenceGraphics::draw()
{
	setPresetText();
	LLPanelPreference::draw();
}

void LLPanelPreferenceGraphics::onPresetsListChange()
{
	resetDirtyChilds();
	setPresetText();

	LLFloaterPreference* instance = LLFloaterReg::findTypedInstance<LLFloaterPreference>("preferences");
	if (instance && !gSavedSettings.getString("PresetGraphicActive").empty())
	{
		instance->saveSettings(); //make cancel work correctly after changing the preset
	}
}

void LLPanelPreferenceGraphics::setPresetText()
{
	LLTextBox* preset_text = getChild<LLTextBox>("preset_text");

	std::string preset_graphic_active = gSavedSettings.getString("PresetGraphicActive");

	if (!preset_graphic_active.empty() && preset_graphic_active != preset_text->getText())
	{
		LLFloaterPreference* instance = LLFloaterReg::findTypedInstance<LLFloaterPreference>("preferences");
		if (instance)
		{
			instance->saveGraphicsPreset(preset_graphic_active);
		}
	}

    if (hasDirtyChilds() && !preset_graphic_active.empty())
	{
		gSavedSettings.setString("PresetGraphicActive", "");
		preset_graphic_active.clear();
		// This doesn't seem to cause an infinite recursion.  This trigger is needed to cause the pulldown
		// panel to update.
		LLPresetsManager::getInstance()->triggerChangeSignal();
	}

	if (!preset_graphic_active.empty())
	{
		if (preset_graphic_active == PRESETS_DEFAULT)
		{
			preset_graphic_active = LLTrans::getString(PRESETS_DEFAULT);
		}
		preset_text->setText(preset_graphic_active);
	}
	else
	{
		preset_text->setText(LLTrans::getString("none_paren_cap"));
	}

	preset_text->resetDirty();
}

bool LLPanelPreferenceGraphics::hasDirtyChilds()
{
	LLFloater* advanced = LLFloaterReg::findTypedInstance<LLFloater>("prefs_graphics_advanced");
	std::list<LLView*> view_stack;
	view_stack.push_back(this);
	if (advanced)
	{
		view_stack.push_back(advanced);
	}
	while(!view_stack.empty())
	{
		// Process view on top of the stack
		LLView* curview = view_stack.front();
		view_stack.pop_front();

		LLUICtrl* ctrl = dynamic_cast<LLUICtrl*>(curview);
		if (ctrl)
		{
			if (ctrl->isDirty())
			{
				LLControlVariable* control = ctrl->getControlVariable();
				if (control)
				{
					std::string control_name = control->getName();
					if (!control_name.empty())
					{
						return true;
					}
				}
			}
		}
		// Push children onto the end of the work stack
		for (child_list_t::const_iterator iter = curview->getChildList()->begin();
			 iter != curview->getChildList()->end(); ++iter)
		{
			view_stack.push_back(*iter);
		}
	}

	return false;
}

void LLPanelPreferenceGraphics::resetDirtyChilds()
{
	LLFloater* advanced = LLFloaterReg::findTypedInstance<LLFloater>("prefs_graphics_advanced");
	std::list<LLView*> view_stack;
	view_stack.push_back(this);
	if (advanced)
	{
		view_stack.push_back(advanced);
	}
	while(!view_stack.empty())
	{
		// Process view on top of the stack
		LLView* curview = view_stack.front();
		view_stack.pop_front();

		LLUICtrl* ctrl = dynamic_cast<LLUICtrl*>(curview);
		if (ctrl)
		{
			ctrl->resetDirty();
		}
		// Push children onto the end of the work stack
		for (child_list_t::const_iterator iter = curview->getChildList()->begin();
			 iter != curview->getChildList()->end(); ++iter)
		{
			view_stack.push_back(*iter);
		}
	}	
}

void LLPanelPreferenceGraphics::cancel()
{
	LLPanelPreference::cancel();
}
void LLPanelPreferenceGraphics::saveSettings()
{
	resetDirtyChilds();
	std::string preset_graphic_active = gSavedSettings.getString("PresetGraphicActive");
	if (preset_graphic_active.empty())
	{
		LLFloaterPreference* instance = LLFloaterReg::findTypedInstance<LLFloaterPreference>("preferences");
		if (instance)
		{
			//don't restore previous preset after closing Preferences
			instance->saveGraphicsPreset(preset_graphic_active);
		}
	}
	LLPanelPreference::saveSettings();
}
void LLPanelPreferenceGraphics::setHardwareDefaults()
{
	resetDirtyChilds();
}

//------------------------LLPanelPreferenceControls--------------------------------
static LLPanelInjector<LLPanelPreferenceControls> t_pref_contrls("panel_preference_controls");

LLPanelPreferenceControls::LLPanelPreferenceControls()
    :LLPanelPreference(),
    mEditingColumn(-1),
    mEditingMode(0)
{
    // MODE_COUNT - 1 because there are currently no settings assigned to 'saved settings'.
    for (U32 i = 0; i < LLKeyConflictHandler::MODE_COUNT - 1; ++i)
    {
        mConflictHandler[i].setLoadMode((LLKeyConflictHandler::ESourceMode)i);
    }
}

LLPanelPreferenceControls::~LLPanelPreferenceControls()
{
}

BOOL LLPanelPreferenceControls::postBuild()
{
    // populate list of controls
    pControlsTable = getChild<LLScrollListCtrl>("controls_list");
    pKeyModeBox = getChild<LLComboBox>("key_mode");

    pControlsTable->setCommitCallback(boost::bind(&LLPanelPreferenceControls::onListCommit, this));
    pKeyModeBox->setCommitCallback(boost::bind(&LLPanelPreferenceControls::onModeCommit, this));
    getChild<LLButton>("restore_defaults")->setCommitCallback(boost::bind(&LLPanelPreferenceControls::onRestoreDefaultsBtn, this));

    return TRUE;
}

void LLPanelPreferenceControls::regenerateControls()
{
    mEditingMode = pKeyModeBox->getValue().asInteger();
    mConflictHandler[mEditingMode].loadFromSettings((LLKeyConflictHandler::ESourceMode)mEditingMode);
    populateControlTable();
}

bool LLPanelPreferenceControls::addControlTableColumns(const std::string &filename)
{
    LLXMLNodePtr xmlNode;
    LLScrollListCtrl::Contents contents;
    if (!LLUICtrlFactory::getLayeredXMLNode(filename, xmlNode))
    {
        LL_WARNS() << "Failed to load " << filename << LL_ENDL;
        return false;
    }
    LLXUIParser parser;
    parser.readXUI(xmlNode, contents, filename);

    if (!contents.validateBlock())
    {
        return false;
    }

    for (LLInitParam::ParamIterator<LLScrollListColumn::Params>::const_iterator col_it = contents.columns.begin();
        col_it != contents.columns.end();
        ++col_it)
    {
        pControlsTable->addColumn(*col_it);
    }

    return true;
}

bool LLPanelPreferenceControls::addControlTableRows(const std::string &filename)
{
    LLXMLNodePtr xmlNode;
    LLScrollListCtrl::Contents contents;
    if (!LLUICtrlFactory::getLayeredXMLNode(filename, xmlNode))
    {
        LL_WARNS() << "Failed to load " << filename << LL_ENDL;
        return false;
    }
    LLXUIParser parser;
    parser.readXUI(xmlNode, contents, filename);

    if (!contents.validateBlock())
    {
        return false;
    }

    LLScrollListCell::Params cell_params;
    // init basic cell params
    cell_params.font = LLFontGL::getFontSansSerif();
    cell_params.font_halign = LLFontGL::LEFT;
    cell_params.column = "";
    cell_params.value = "";


    for (LLInitParam::ParamIterator<LLScrollListItem::Params>::const_iterator row_it = contents.rows.begin();
        row_it != contents.rows.end();
        ++row_it)
    {
        std::string control = row_it->value.getValue().asString();
        if (!control.empty() && control != "menu_separator")
        {
            bool show = true;
            bool enabled = mConflictHandler[mEditingMode].canAssignControl(control);
            if (!enabled)
            {
                // If empty: this is a placeholder to make sure user won't assign
                // value by accident, don't show it
                // If not empty: predefined control combination user should see
                // to know that combination is reserved
                show = !mConflictHandler[mEditingMode].isControlEmpty(control);
                // example: teleport_to and walk_to in first person view, and
                // sitting related functions, see generatePlaceholders()
            }

            if (show)
            {
                // At the moment viewer is hardcoded to assume that columns are named as lst_ctrl%d
                LLScrollListItem::Params item_params(*row_it);
                item_params.enabled.setValue(enabled);

                S32 num_columns = pControlsTable->getNumColumns();
                for (S32 col = 1; col < num_columns; col++)
                {
                    cell_params.column = llformat("lst_ctrl%d", col);
                    cell_params.value = mConflictHandler[mEditingMode].getControlString(control, col - 1);
                    item_params.columns.add(cell_params);
                }
                pControlsTable->addRow(item_params, EAddPosition::ADD_BOTTOM);
            }
        }
        else
        {
            // Separator example:
            // <rows
            //  enabled = "false">
            //  <columns
            //   type = "icon"
            //   color = "0 0 0 0.7"
            //   halign = "center"
            //   value = "menu_separator"
            //   column = "lst_action" / >
            //</rows>
            pControlsTable->addRow(*row_it, EAddPosition::ADD_BOTTOM);
        }
    }
    return true;
}

void LLPanelPreferenceControls::addControlTableSeparator()
{
    LLScrollListItem::Params separator_params;
    separator_params.enabled(false);
    LLScrollListCell::Params column_params;
    column_params.type = "icon";
    column_params.value = "menu_separator";
    column_params.column = "lst_action";
    column_params.color = LLColor4(0.f, 0.f, 0.f, 0.7f);
    column_params.font_halign = LLFontGL::HCENTER;
    separator_params.columns.add(column_params);
    pControlsTable->addRow(separator_params, EAddPosition::ADD_BOTTOM);
}

void LLPanelPreferenceControls::populateControlTable()
{
    pControlsTable->clearRows();
    pControlsTable->clearColumns();

    // Add columns
    std::string filename;
    switch ((LLKeyConflictHandler::ESourceMode)mEditingMode)
    {
    case LLKeyConflictHandler::MODE_THIRD_PERSON:
    case LLKeyConflictHandler::MODE_FIRST_PERSON:
    case LLKeyConflictHandler::MODE_EDIT_AVATAR:
    case LLKeyConflictHandler::MODE_SITTING:
        filename = "control_table_contents_columns_basic.xml";
        break;
    default:
        // Either unknown mode or MODE_SAVED_SETTINGS
        // It doesn't have UI or actual settings yet
        LL_INFOS() << "Unimplemented mode" << LL_ENDL;
        return;
    }
    addControlTableColumns(filename);

    // Add rows.
    // Each file represents individual visual group (movement/camera/media...)
    if (mEditingMode == LLKeyConflictHandler::MODE_FIRST_PERSON)
    {
        // Don't display whole camera and editing groups
        addControlTableRows("control_table_contents_movement.xml");
        addControlTableSeparator();
        addControlTableRows("control_table_contents_media.xml");
    }
    // MODE_THIRD_PERSON; MODE_EDIT_AVATAR; MODE_SITTING
    else if (mEditingMode < LLKeyConflictHandler::MODE_SAVED_SETTINGS)
    {
        // In case of 'sitting' mode, movements still apply due to vehicles
        // but walk_to is not supported and will be hidden by addControlTableRows
        addControlTableRows("control_table_contents_movement.xml");
        addControlTableSeparator();

        addControlTableRows("control_table_contents_camera.xml");
        addControlTableSeparator();

        addControlTableRows("control_table_contents_editing.xml");
        addControlTableSeparator();

        addControlTableRows("control_table_contents_media.xml");
    }
    else
    {
        LL_INFOS() << "Unimplemented mode" << LL_ENDL;
        return;
    }
}

void LLPanelPreferenceControls::updateTable()
{
    mEditingControl.clear();
    std::vector<LLScrollListItem*> list = pControlsTable->getAllData();
    for (S32 i = 0; i < list.size(); ++i)
    {
        std::string control = list[i]->getValue();
        if (!control.empty())
        {
            LLScrollListCell* cell = NULL;

            S32 num_columns = pControlsTable->getNumColumns();
            for (S32 col = 1; col < num_columns; col++)
            {
                cell = list[i]->getColumn(col);
                cell->setValue(mConflictHandler[mEditingMode].getControlString(control, col - 1));
            }
        }
    }
    pControlsTable->deselectAllItems();
}

void LLPanelPreferenceControls::apply()
{
    for (U32 i = 0; i < LLKeyConflictHandler::MODE_COUNT - 1; ++i)
    {
        if (mConflictHandler[i].hasUnsavedChanges())
        {
            mConflictHandler[i].saveToSettings();
        }
    }
}

void LLPanelPreferenceControls::cancel()
{
    for (U32 i = 0; i < LLKeyConflictHandler::MODE_COUNT - 1; ++i)
    {
        if (mConflictHandler[i].hasUnsavedChanges())
        {
            mConflictHandler[i].clear();
        }
    }
    pControlsTable->clearRows();
    pControlsTable->clearColumns();
}

void LLPanelPreferenceControls::saveSettings()
{
    for (U32 i = 0; i < LLKeyConflictHandler::MODE_COUNT - 1; ++i)
    {
        if (mConflictHandler[i].hasUnsavedChanges())
        {
            mConflictHandler[i].saveToSettings();
            mConflictHandler[i].clear();
        }
    }

    S32 mode = pKeyModeBox->getValue().asInteger();
    if (mConflictHandler[mode].empty() || pControlsTable->isEmpty())
    {
        regenerateControls();
    }
}

void LLPanelPreferenceControls::resetDirtyChilds()
{
    regenerateControls();
}

void LLPanelPreferenceControls::onListCommit()
{
    LLScrollListItem* item = pControlsTable->getFirstSelected();
    if (item == NULL)
    {
        return;
    }

    std::string control = item->getValue();

    if (control.empty())
    {