199 lines
7.8 KiB
C++
199 lines
7.8 KiB
C++
/*
|
|
* Copyright (C) 2006 Ronald Lamprecht
|
|
*
|
|
* 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.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*
|
|
*/
|
|
#include "PreferenceManager.hh"
|
|
#include "main.hh"
|
|
#include "DOMErrorReporter.hh"
|
|
#include "DOMSchemaResolver.hh"
|
|
#include "LocalToXML.hh"
|
|
#include "nls.hh"
|
|
#include "Utf8ToXML.hh"
|
|
#include "utilXML.hh"
|
|
#include "options.hh"
|
|
#include "XMLtoLocal.hh"
|
|
#include "XMLtoUtf8.hh"
|
|
#include "ecl_system.hh"
|
|
#include "gui/ErrorMenu.hh"
|
|
|
|
#include <iostream>
|
|
#include <xercesc/dom/DOM.hpp>
|
|
#include <xercesc/util/XMLDouble.hpp>
|
|
#include <xercesc/util/XMLString.hpp>
|
|
#include <xercesc/util/XMLUniDefs.hpp>
|
|
#include <xercesc/util/PlatformUtils.hpp>
|
|
#include <xercesc/util/XercesVersion.hpp>
|
|
#if _XERCES_VERSION < 30000
|
|
#include <xercesc/framework/LocalFileFormatTarget.hpp>
|
|
#endif
|
|
|
|
|
|
using namespace std;
|
|
using namespace enigma;
|
|
XERCES_CPP_NAMESPACE_USE
|
|
|
|
namespace enigma {
|
|
PreferenceManager *PreferenceManager::theSingleton = 0;
|
|
|
|
PreferenceManager* PreferenceManager::instance() {
|
|
if (theSingleton == 0) {
|
|
theSingleton = new PreferenceManager();
|
|
}
|
|
return theSingleton;
|
|
}
|
|
|
|
PreferenceManager::PreferenceManager() {
|
|
std::string prefTemplatePath;
|
|
bool haveXMLProperties = (ecl::FileExists(app.prefPath)) ? true : false;
|
|
|
|
if (!app.systemFS->findFile( std::string("schemas/") + PREFFILENAME , prefTemplatePath)) {
|
|
cerr << "Preferences: no template found\n";
|
|
exit(-1);
|
|
}
|
|
|
|
try {
|
|
|
|
app.domParserErrorHandler->resetErrors();
|
|
app.domParserErrorHandler->reportToErr();
|
|
app.domParserSchemaResolver->resetResolver();
|
|
app.domParserSchemaResolver->addSchemaId("preferences.xsd","preferences.xsd");
|
|
|
|
if (haveXMLProperties) {
|
|
// update existing XML prefs from possibly newer template:
|
|
// use user prefs and copy new properties from template
|
|
doc = app.domParser->parseURI(app.prefPath.c_str());
|
|
propertiesElem = reinterpret_cast<DOMElement *>(doc->getElementsByTagName(
|
|
Utf8ToXML("properties").x_str())->item(0));
|
|
// The following algorithm is not optimized - O(n^2)!
|
|
DOMDocument * prefTemplate = app.domParser->parseURI(prefTemplatePath.c_str());
|
|
DOMNodeList * tmplPropList = prefTemplate->getElementsByTagName(
|
|
Utf8ToXML("property").x_str());
|
|
for (int i = 0, l = tmplPropList-> getLength(); i < l; i++) {
|
|
DOMElement *tmplProperty = reinterpret_cast<DOMElement *>(tmplPropList->item(i));
|
|
const XMLCh * key = tmplProperty->getAttribute(Utf8ToXML("key").x_str());
|
|
DOMElement * lastUserProperty;
|
|
if ((key[0] != chUnderscore) && !hasProperty(key, &lastUserProperty)) {
|
|
// a new property in the template
|
|
Log << "Preferences: add new Property \"" << XMLtoLocal(key) << "\"\n";
|
|
// make a copy
|
|
DOMNode * newProperty = doc->importNode(tmplProperty, false);
|
|
if (newProperty == NULL) {
|
|
Log << "Preferences: copy new Property failed!\n";
|
|
} else {
|
|
// insert it at the end of the existing user properties
|
|
propertiesElem->appendChild(reinterpret_cast<DOMElement *>(newProperty));
|
|
}
|
|
}
|
|
}
|
|
prefTemplate->release();
|
|
} else {
|
|
|
|
// update from LUA options to XML preferences:
|
|
// use the template, copy LUA option values and save it later as prefs
|
|
doc = app.domParser->parseURI(prefTemplatePath.c_str());
|
|
propertiesElem = reinterpret_cast<DOMElement *>(doc->getElementsByTagName(
|
|
Utf8ToXML("properties").x_str())->item(0));
|
|
DOMNodeList * propList = propertiesElem->getElementsByTagName(Utf8ToXML("property").x_str());
|
|
for (int i = 0, l = propList-> getLength(); i < l; i++) {
|
|
DOMElement * property = reinterpret_cast<DOMElement *>(propList->item(i));
|
|
const XMLCh * key = property->getAttribute(Utf8ToXML("key").x_str());
|
|
std::string optionValue;
|
|
if (options::HasOption(XMLtoLocal(key).c_str(), optionValue)) {
|
|
Log << "Preferences: copy LUA option \"" << XMLtoLocal(key) << "\"\n";
|
|
property->setAttribute(Utf8ToXML("value").x_str(),
|
|
LocalToXML(&optionValue).x_str());
|
|
} else {
|
|
Log << "Preferences: no LUA option \"" << XMLtoLocal(key) << "\"\n";
|
|
}
|
|
}
|
|
}
|
|
}
|
|
catch (const XMLException& toCatch) {
|
|
char* message = XMLString::transcode(toCatch.getMessage());
|
|
cerr << "Exception on load of preferences: "
|
|
<< message << "\n";
|
|
XMLString::release(&message);
|
|
exit (-1);
|
|
}
|
|
catch (const DOMException& toCatch) {
|
|
char* message = XMLString::transcode(toCatch.msg);
|
|
cerr << "Exception on load of preferences: "
|
|
<< message << "\n";
|
|
XMLString::release(&message);
|
|
exit (-1);
|
|
}
|
|
catch (...) {
|
|
cerr << "Unexpected Exception on load of preferences\n" ;
|
|
exit (-1);
|
|
}
|
|
}
|
|
|
|
PreferenceManager::~PreferenceManager() {
|
|
if (doc != NULL)
|
|
shutdown();
|
|
}
|
|
|
|
bool PreferenceManager::save() {
|
|
bool result = true;
|
|
std::string errMessage;
|
|
|
|
if (doc == NULL)
|
|
return true;
|
|
|
|
stripIgnorableWhitespace(doc->getDocumentElement());
|
|
|
|
try {
|
|
#if _XERCES_VERSION >= 30000
|
|
result = app.domSer->writeToURI(doc, LocalToXML(& app.prefPath).x_str());
|
|
#else
|
|
XMLFormatTarget *myFormTarget = new LocalFileFormatTarget(app.prefPath.c_str());
|
|
result = app.domSer->writeNode(myFormTarget, *doc);
|
|
delete myFormTarget; // flush
|
|
#endif
|
|
} catch (const XMLException& toCatch) {
|
|
errMessage = std::string("Exception on save of preferences: \n") +
|
|
XMLtoUtf8(toCatch.getMessage()).c_str() + "\n";
|
|
result = false;
|
|
} catch (const DOMException& toCatch) {
|
|
errMessage = std::string("Exception on save of preferences: \n") +
|
|
XMLtoUtf8(toCatch.getMessage()).c_str() + "\n";
|
|
result = false;
|
|
} catch (...) {
|
|
errMessage = "Unexpected exception on save of preferences\n" ;
|
|
result = false;
|
|
}
|
|
|
|
if (!result) {
|
|
cerr << errMessage;
|
|
gui::ErrorMenu m(errMessage, N_("Continue"));
|
|
m.manage();
|
|
} else
|
|
Log << "Preferences save o.k.\n";
|
|
|
|
return result;
|
|
}
|
|
|
|
void PreferenceManager::shutdown() {
|
|
save();
|
|
if (doc != NULL)
|
|
doc->release();
|
|
doc = NULL;
|
|
}
|
|
|
|
} // namespace enigma
|
|
|