qdeclarativeinfo.cpp

Go to the documentation of this file.

/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.  For licensing terms and
** conditions see http://qt.digia.com/licensing.  For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights.  These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#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

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