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/*
* vdr-menuorg - A plugin for the Linux Video Disk Recorder
* Copyright (C) 2007 Thomas Creutz, Tobias Grimm
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*
*/
#include "MenuConfigurationRepository.h"
#include <exception>
#include <iostream>
#include <sys/types.h>
#include <sys/stat.h>
#include <libxml++/libxml++.h>
#include <glibmm/convert.h>
#include "SystemMenuNode.h"
#include "SubMenuNode.h"
#include "PluginMenuNode.h"
#include "CommandMenuNode.h"
#include "SeparatorMenuNode.h"
#include "XmlConfigurationFactory.h"
using namespace xmlpp;
using namespace std;
const string MenuConfigurationRepository::_dtd =
"<!ELEMENT menus ((menu | system | plugin | command | separator)+)>\n"
"<!ELEMENT menu ((menu | system | plugin | command | separator)+)>\n"
"<!ATTLIST menu name CDATA #REQUIRED>\n"
"<!ELEMENT system EMPTY>\n"
"<!ATTLIST system\n"
" name CDATA #REQUIRED\n"
" title CDATA #IMPLIED>\n"
"<!ELEMENT plugin EMPTY>\n"
"<!ATTLIST plugin\n"
" name CDATA #REQUIRED\n"
" title CDATA #IMPLIED>\n"
"<!ELEMENT command EMPTY>\n"
"<!ATTLIST command\n"
" name CDATA #REQUIRED\n"
" execute CDATA #REQUIRED\n"
" confirm (yes|no) #IMPLIED>"
"<!ELEMENT separator EMPTY>\n"
"<!ATTLIST separator\n"
" title CDATA #IMPLIED>\n";
MenuConfigurationRepository::MenuConfigurationRepository(string menuFileName)
{
_configurationFileName = menuFileName;
_cachedMenuConfiguration = NULL;
_lastConfigFileModificationTime = 0;
}
MenuConfigurationRepository::~MenuConfigurationRepository()
{
delete _cachedMenuConfiguration;
}
SubMenuNode* MenuConfigurationRepository::Load()
{
if (ConfigFileHasBeenChange())
{
try
{
dsyslog("loading menuorg config file from %s", _configurationFileName.c_str());
DomParser _parser;
_parser.set_substitute_entities();
_parser.parse_file(_configurationFileName);
DtdValidator validator;
validator.parse_memory(_dtd);
Document *document = _parser.get_document();
validator.validate( document );
if (document)
{
_lastConfigFileModificationTime = CurrentConfigFileModificationTime();
delete _cachedMenuConfiguration;
_cachedMenuConfiguration = new SubMenuNode("root");
CreateMenuTree(document->get_root_node(), _cachedMenuConfiguration);
}
}
catch(const std::exception& ex)
{
cerr << "menuorg: Exception caught when parsing xml configuration: " << ex.what();
esyslog("Exception caught when parsing xml configuration. See stderr output for details.");
}
}
return _cachedMenuConfiguration;
}
void MenuConfigurationRepository::Save(SubMenuNode& menuConfiguration)
{
Document* doc = XmlConfigurationFactory::CreateXmlConfig(&menuConfiguration);
doc->write_to_file_formatted(_configurationFileName);
}
bool MenuConfigurationRepository::ConfigFileHasBeenChange()
{
return (CurrentConfigFileModificationTime() != _lastConfigFileModificationTime);
}
time_t MenuConfigurationRepository::CurrentConfigFileModificationTime()
{
struct stat fileState;
if (stat(_configurationFileName.c_str(), &fileState) == 0)
{
return fileState.st_mtim.tv_sec;
}
return 0;
}
void MenuConfigurationRepository::CreateMenuTree(const Element* menuRoot, SubMenuNode* menuNode)
{
Node::NodeList children = menuRoot->get_children();
for (Node::NodeList::iterator i = children.begin(); i != children.end(); i++)
{
const Element* childElement = dynamic_cast<const Element*>(*i);
if (childElement)
{
string type = childElement->get_name();
string name = GetAttributeValue(childElement, "name", "");
if ( type == "menu")
{
SubMenuNode* subMenu = new SubMenuNode(name);
subMenu->AddToParent(menuNode);
CreateMenuTree(childElement, subMenu);
}
else if (type == "system")
{
menuNode->AddChild(new SystemMenuNode(VdrState::ByName(name), GetTitle(childElement, "")));
}
else if (type == "plugin")
{
menuNode->AddChild(new PluginMenuNode(name, GetTitle(childElement, "")));
}
else if (type == "command")
{
string execute = childElement->get_attribute("execute")->get_value();
bool confirm = GetAttributeValue(childElement, "confirm", "false") == "yes";
menuNode->AddChild(new CommandMenuNode(name, execute, confirm));
}
else if (type == "separator")
{
menuNode->AddChild(new SeparatorMenuNode(GetTitle(childElement, "")));
}
}
}
}
string MenuConfigurationRepository::UnicodeToLocaleOrIso8859(Glib::ustring unicodeString)
{
try
{
return Glib::locale_from_utf8(unicodeString);
}
catch (Glib::ConvertError)
{
return Glib::convert_with_fallback(unicodeString, "ISO8859-15", "UTF-8");
}
}
string MenuConfigurationRepository::GetTitle(const Element* node, string defaultValue)
{
return GetAttributeValue(node, "title", defaultValue);
}
string MenuConfigurationRepository::GetAttributeValue(const Element* node, string name, string defaultValue)
{
const Attribute* attribute = node->get_attribute(name);
return attribute ? (string) UnicodeToLocaleOrIso8859(attribute->get_value()) : defaultValue;
}
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