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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include "metainfoparser.h"
#include "metainfo.h"
#include "model/propertyparser.h"
#include <QXmlStreamReader>
#include <QString>
#include <QFile>
#include <QtDebug>
#include <QIcon>
namespace QmlDesigner {
namespace Internal {
MetaInfoParser::MetaInfoParser(const MetaInfo &metaInfo)
: m_metaInfo(metaInfo)
{
}
void MetaInfoParser::parseFile(const QString &path)
{
QFile file;
file.setFileName(path);
if (!file.open(QIODevice::ReadOnly))
throw new InvalidMetaInfoException(__LINE__, __FUNCTION__, __FILE__);
QXmlStreamReader reader;
reader.setDevice(&file);
while (!reader.atEnd()) {
reader.readNext();
tokenHandler(reader);
}
errorHandling(reader, file);
}
void MetaInfoParser::tokenHandler(QXmlStreamReader &reader)
{
if (reader.isStartElement() && reader.name() == "metainfo")
handleMetaInfoElement(reader);
}
void MetaInfoParser::handleMetaInfoElement(QXmlStreamReader &reader)
{
while (!reader.atEnd() && !(reader.isEndElement() && reader.name() == "metainfo")) {
reader.readNext();
metaInfoHandler(reader);
}
}
void MetaInfoParser::metaInfoHandler(QXmlStreamReader &reader)
{
if (reader.isStartElement())
{
if (reader.name() == "node")
handleNodeElement(reader);
}
}
void MetaInfoParser::handleNodeElement(QXmlStreamReader &reader)
{
const QXmlStreamAttributes attributes = reader.attributes();
const QString className = attributes.value("name").toString();
const QIcon icon = QIcon(attributes.value("icon").toString());
if (className.isEmpty()) {
reader.raiseError("Invalid element 'node' - mandatory attribute 'name' is missing");
return;
}
while (!reader.atEnd() && !(reader.isEndElement() && reader.name() == "node")) {
reader.readNext();
handleNodeItemLibraryEntryElement(reader, className, icon);
}
}
void MetaInfoParser::handleNodeItemLibraryEntryElement(QXmlStreamReader &reader, const QString &className, const QIcon &icon)
{
if (reader.isStartElement() && reader.name() == "itemlibraryentry")
{
const QString versionNumber = reader.attributes().value("version").toString();
int major = 1;
int minor = 0;
if (!versionNumber.isEmpty()) {
int val;
bool ok;
if (versionNumber.contains('.')) {
val = versionNumber.split('.').first().toInt(&ok);
major = ok ? val : major;
val = versionNumber.split('.').last().toInt(&ok);
minor = ok ? val : minor;
} else {
val = versionNumber.toInt(&ok);
major = ok ? val : major;
}
}
const QString name = reader.attributes().value("name").toString();
ItemLibraryEntry entry;
entry.setType(className, major, minor);
entry.setName(name);
entry.setIcon(icon);
QString iconPath = reader.attributes().value("libraryIcon").toString();
if (!iconPath.isEmpty())
entry.setIconPath(iconPath);
QString category = reader.attributes().value("category").toString();
if (!category.isEmpty())
entry.setCategory(category);
QString requiredImport = reader.attributes().value("requiredImport").toString();
if (!requiredImport.isEmpty())
entry.setRequiredImport(requiredImport);
while (!reader.atEnd() && !(reader.isEndElement() && reader.name() == "itemlibraryentry")) {
reader.readNext();
handleItemLibraryEntryPropertyElement(reader, entry);
}
m_metaInfo.itemLibraryInfo()->addEntry(entry);
}
}
void MetaInfoParser::handleItemLibraryEntryPropertyElement(QXmlStreamReader &reader, ItemLibraryEntry &itemLibraryEntry)
{
if (reader.isStartElement() && reader.name() == "property")
{
QXmlStreamAttributes attributes(reader.attributes());
QString name = attributes.value("name").toString();
QString type = attributes.value("type").toString();
QString value = attributes.value("value").toString();
itemLibraryEntry.addProperty(name, type, value);
reader.readNext();
}
}
void MetaInfoParser::errorHandling(QXmlStreamReader &reader, QFile &file)
{
if (!reader.hasError())
return;
qDebug() << QString("Error at %1, %2:%3: %4")
.arg(file.fileName())
.arg(reader.lineNumber())
.arg(reader.columnNumber())
.arg(reader.errorString());
file.reset();
QString fileString = file.readAll();
QString snippetString;
int lineCount = 0;
int position = reader.characterOffset();
while (position >= 0)
{
if (fileString[position] == '\n') {
if (lineCount > 3)
break;
lineCount++;
}
snippetString.prepend(fileString[position]);
position--;
}
lineCount = 0;
position = reader.characterOffset();
while (position >= 0)
{
position++;
if (fileString[position] == '\n') {
if (lineCount > 1)
break;
lineCount++;
}
snippetString.append(fileString[position]);
}
qDebug() << snippetString;
}
}
}
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