RetroFE/RetroFE/Source/Collection/MenuParser.cpp
2015-06-25 11:58:52 -05:00

130 lines
4.2 KiB
C++

/* This file is part of RetroFE.
*
* RetroFE is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* RetroFE 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with RetroFE. If not, see <http://www.gnu.org/licenses/>.
*/
#include "MenuParser.h"
#include "CollectionInfo.h"
#include "Item.h"
#include "../Utility/Log.h"
#include "../Utility/Utils.h"
#include "../Database/Configuration.h"
#include "../Database/DB.h"
#include <algorithm>
#include <rapidxml.hpp>
#include <fstream>
#include <sstream>
bool VectorSort(Item *d1, Item *d2)
{
return d1->lowercaseTitle() < d2->lowercaseTitle();
}
MenuParser::MenuParser()
{
}
MenuParser::~MenuParser()
{
}
//todo: clean up this method, too much nesting
bool MenuParser::buildMenuItems(CollectionInfo *collection, bool sort)
{
bool retVal = false;
//todo: magic string
std::string menuFilename = Utils::combinePath(Configuration::absolutePath, "collections", collection->name, "menu.xml");
rapidxml::xml_document<> doc;
rapidxml::xml_node<> * rootNode;
std::vector<Item *> menuItems;
Logger::write(Logger::ZONE_INFO, "Menu", "Checking if menu exists at \"" + menuFilename + "\"");
try
{
std::ifstream file(menuFilename.c_str());
// gracefully exit if there is no menu file for the pa
if(file.good())
{
std::vector<char> buffer((std::istreambuf_iterator<char>(file)), std::istreambuf_iterator<char>());
buffer.push_back('\0');
doc.parse<0>(&buffer[0]);
rootNode = doc.first_node("menu");
for (rapidxml::xml_node<> * itemNode = rootNode->first_node("item"); itemNode; itemNode = itemNode->next_sibling())
{
rapidxml::xml_attribute<> *collectionAttribute = itemNode->first_attribute("collection");
rapidxml::xml_attribute<> *importAttribute = itemNode->first_attribute("import");
if(!collectionAttribute)
{
retVal = false;
Logger::write(Logger::ZONE_ERROR, "Menu", "Menu item tag is missing collection attribute");
break;
}
//todo: too much nesting! Ack!
std::string import;
if(importAttribute)
{
import = importAttribute->value();
}
if(import != "true")
{
//todo, check for empty string
std::string title = collectionAttribute->value();
Item *item = new Item();
item->title = title;
item->fullTitle = title;
item->name = collectionAttribute->value();
item->leaf = false;
menuItems.push_back(item);
}
else
{
std::string collectionName = collectionAttribute->value();
Logger::write(Logger::ZONE_INFO, "Menu", "Loading collection into menu: " + collectionName);
//todo: unsupported option with this refactor
// need to append the collection
}
}
// todo: sorting should occur within the collection itself, not externally
if(sort)
{
// sort the menu if requested
std::sort( menuItems.begin(), menuItems.end(), VectorSort);
}
collection->items.insert(collection->items.begin(), menuItems.begin(), menuItems.end());
retVal = true;
}
}
catch(std::ifstream::failure &e)
{
std::stringstream ss;
ss << "Unable to open menu file \"" << menuFilename << "\": " << e.what();
Logger::write(Logger::ZONE_ERROR, "Menu", ss.str());
}
return retVal;
}