yacreader/third_party/QtWebApp/templateengine/templateloader.cpp
Luis Ángel San Martín 986450eb20 Update QtWebApp to 1.8.3
nullptr redefinition for old __cplusplus versions has been removed, the rest is vanilla
2021-10-19 00:00:09 +02:00

134 lines
3.8 KiB
C++

/**
@file
@author Stefan Frings
*/
#include "templateloader.h"
#include <QFile>
#include <QFileInfo>
#include <QStringList>
#include <QDir>
#include <QSet>
#include <QTextStream>
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
#include <QRegularExpression>
#else
#include <QRegExp>
#endif
using namespace stefanfrings;
TemplateLoader::TemplateLoader(const QSettings *settings, QObject *parent)
: QObject(parent)
{
templatePath=settings->value("path",".").toString();
// Convert relative path to absolute, based on the directory of the config file.
#ifdef Q_OS_WIN32
if (QDir::isRelativePath(templatePath) && settings->format()!=QSettings::NativeFormat)
#else
if (QDir::isRelativePath(templatePath))
#endif
{
QFileInfo configFile(settings->fileName());
templatePath=QFileInfo(configFile.absolutePath(),templatePath).absoluteFilePath();
}
fileNameSuffix=settings->value("suffix",".tpl").toString();
QString encoding=settings->value("encoding").toString();
if (encoding.isEmpty())
{
textCodec=QTextCodec::codecForLocale();
}
else
{
textCodec=QTextCodec::codecForName(encoding.toLocal8Bit());
}
qDebug("TemplateLoader: path=%s, codec=%s",qPrintable(templatePath),qPrintable(encoding));
}
TemplateLoader::~TemplateLoader()
{}
QString TemplateLoader::tryFile(QString localizedName)
{
QString fileName=templatePath+"/"+localizedName+fileNameSuffix;
qDebug("TemplateCache: trying file %s",qPrintable(fileName));
QFile file(fileName);
if (file.exists()) {
file.open(QIODevice::ReadOnly);
QString document=textCodec->toUnicode(file.readAll());
file.close();
if (file.error())
{
qCritical("TemplateLoader: cannot load file %s, %s",qPrintable(fileName),qPrintable(file.errorString()));
return "";
}
else
{
return document;
}
}
return "";
}
Template TemplateLoader::getTemplate(QString templateName, QString locales)
{
QSet<QString> tried; // used to suppress duplicate attempts
#if QT_VERSION >= QT_VERSION_CHECK(5, 14, 0)
QStringList locs=locales.split(',',Qt::SkipEmptyParts);
#else
QStringList locs=locales.split(',',QString::SkipEmptyParts);
#endif
// Search for exact match
foreach (QString loc,locs)
{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
loc.replace(QRegularExpression(";.*"),"");
#else
loc.replace(QRegExp(";.*"),"");
#endif
loc.replace('-','_');
QString localizedName=templateName+"-"+loc.trimmed();
if (!tried.contains(localizedName))
{
QString document=tryFile(localizedName);
if (!document.isEmpty()) {
return Template(document,localizedName);
}
tried.insert(localizedName);
}
}
// Search for correct language but any country
foreach (QString loc,locs)
{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
loc.replace(QRegularExpression("[;_-].*"),"");
#else
loc.replace(QRegExp("[;_-].*"),"");
#endif
QString localizedName=templateName+"-"+loc.trimmed();
if (!tried.contains(localizedName))
{
QString document=tryFile(localizedName);
if (!document.isEmpty())
{
return Template(document,localizedName);
}
tried.insert(localizedName);
}
}
// Search for default file
QString document=tryFile(templateName);
if (!document.isEmpty())
{
return Template(document,templateName);
}
qCritical("TemplateCache: cannot find template %s",qPrintable(templateName));
return Template("",templateName);
}