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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdeclarativeinfo.h"
#include "private/qdeclarativedata_p.h"
#include "qdeclarativecontext.h"
#include "private/qdeclarativecontext_p.h"
#include "private/qdeclarativemetatype_p.h"
#include "private/qdeclarativeengine_p.h"
#include <QCoreApplication>
QT_BEGIN_NAMESPACE
/*!
\fn QDeclarativeInfo qmlInfo(const QObject *object)
\relates QDeclarativeEngine
\brief Prints warnings messages that include the file and line number for QML types.
When QML types display warning messages, it improves traceability
if they include the QML file and line number on which the
particular instance was instantiated.
To include the file and line number, an object must be passed. If
the file and line number is not available for that instance
(either it was not instantiated by the QML engine or location
information is disabled), "unknown location" will be used instead.
For example,
\code
qmlInfo(object) << tr("component property is a write-once property");
\endcode
prints
\code
QML MyCustomType (unknown location): component property is a write-once property
\endcode
*/
class QDeclarativeInfoPrivate
{
public:
QDeclarativeInfoPrivate() : ref (1), object(0) {}
int ref;
const QObject *object;
QString buffer;
QList<QDeclarativeError> errors;
};
QDeclarativeInfo::QDeclarativeInfo(QDeclarativeInfoPrivate *p)
: QDebug(&p->buffer), d(p)
{
nospace();
}
QDeclarativeInfo::QDeclarativeInfo(const QDeclarativeInfo &other)
: QDebug(other), d(other.d)
{
d->ref++;
}
QDeclarativeInfo::~QDeclarativeInfo()
{
if (0 == --d->ref) {
QList<QDeclarativeError> errors = d->errors;
QDeclarativeEngine *engine = 0;
if (!d->buffer.isEmpty()) {
QDeclarativeError error;
QObject *object = const_cast<QObject *>(d->object);
if (object) {
engine = qmlEngine(d->object);
QString typeName;
QDeclarativeType *type = QDeclarativeMetaType::qmlType(object->metaObject());
if (type) {
typeName = QLatin1String(type->qmlTypeName());
int lastSlash = typeName.lastIndexOf(QLatin1Char('/'));
if (lastSlash != -1)
typeName = typeName.mid(lastSlash+1);
} else {
typeName = QString::fromUtf8(object->metaObject()->className());
int marker = typeName.indexOf(QLatin1String("_QMLTYPE_"));
if (marker != -1)
typeName = typeName.left(marker);
}
d->buffer.prepend(QLatin1String("QML ") + typeName + QLatin1String(": "));
QDeclarativeData *ddata = QDeclarativeData::get(object, false);
if (ddata && ddata->outerContext && !ddata->outerContext->url.isEmpty()) {
error.setUrl(ddata->outerContext->url);
error.setLine(ddata->lineNumber);
error.setColumn(ddata->columnNumber);
}
}
error.setDescription(d->buffer);
errors.prepend(error);
}
QDeclarativeEnginePrivate::warning(engine, errors);
delete d;
}
}
QDeclarativeInfo qmlInfo(const QObject *me)
{
QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
d->object = me;
return QDeclarativeInfo(d);
}
QDeclarativeInfo qmlInfo(const QObject *me, const QDeclarativeError &error)
{
QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
d->object = me;
d->errors << error;
return QDeclarativeInfo(d);
}
QDeclarativeInfo qmlInfo(const QObject *me, const QList<QDeclarativeError> &errors)
{
QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
d->object = me;
d->errors = errors;
return QDeclarativeInfo(d);
}
QT_END_NAMESPACE
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