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/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:LGPL21$
** 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 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** 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.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "private/qdeclarativewatcher_p.h"
#include "qdeclarativeexpression.h"
#include "qdeclarativecontext.h"
#include "qdeclarative.h"
#include <qdeclarativedebugservice_p.h>
#include "private/qdeclarativeproperty_p.h"
#include "private/qdeclarativevaluetype_p.h"
#include <QtCore/qmetaobject.h>
#include <QtCore/qdebug.h>
QT_BEGIN_NAMESPACE
class QDeclarativeWatchProxy : public QObject
{
Q_OBJECT
public:
QDeclarativeWatchProxy(int id,
QObject *object,
int debugId,
const QMetaProperty &prop,
QDeclarativeWatcher *parent = 0);
QDeclarativeWatchProxy(int id,
QDeclarativeExpression *exp,
int debugId,
QDeclarativeWatcher *parent = 0);
public slots:
void notifyValueChanged();
private:
friend class QDeclarativeWatcher;
int m_id;
QDeclarativeWatcher *m_watch;
QObject *m_object;
int m_debugId;
QMetaProperty m_property;
QDeclarativeExpression *m_expr;
};
QDeclarativeWatchProxy::QDeclarativeWatchProxy(int id,
QDeclarativeExpression *exp,
int debugId,
QDeclarativeWatcher *parent)
: QObject(parent), m_id(id), m_watch(parent), m_object(0), m_debugId(debugId), m_expr(exp)
{
QObject::connect(m_expr, SIGNAL(valueChanged()), this, SLOT(notifyValueChanged()));
}
QDeclarativeWatchProxy::QDeclarativeWatchProxy(int id,
QObject *object,
int debugId,
const QMetaProperty &prop,
QDeclarativeWatcher *parent)
: QObject(parent), m_id(id), m_watch(parent), m_object(object), m_debugId(debugId), m_property(prop), m_expr(0)
{
static int refreshIdx = -1;
if(refreshIdx == -1)
refreshIdx = QDeclarativeWatchProxy::staticMetaObject.indexOfMethod("notifyValueChanged()");
if (prop.hasNotifySignal())
QDeclarativePropertyPrivate::connect(m_object, prop.notifySignalIndex(), this, refreshIdx);
}
void QDeclarativeWatchProxy::notifyValueChanged()
{
QVariant v;
if (m_expr)
v = m_expr->evaluate();
else if (QDeclarativeValueTypeFactory::isValueType(m_property.userType()))
v = m_property.read(m_object);
emit m_watch->propertyChanged(m_id, m_debugId, m_property, v);
}
QDeclarativeWatcher::QDeclarativeWatcher(QObject *parent)
: QObject(parent)
{
}
bool QDeclarativeWatcher::addWatch(int id, quint32 debugId)
{
QObject *object = QDeclarativeDebugService::objectForId(debugId);
if (object) {
int propCount = object->metaObject()->propertyCount();
for (int ii=0; ii<propCount; ii++)
addPropertyWatch(id, object, debugId, object->metaObject()->property(ii));
return true;
}
return false;
}
bool QDeclarativeWatcher::addWatch(int id, quint32 debugId, const QByteArray &property)
{
QObject *object = QDeclarativeDebugService::objectForId(debugId);
if (object) {
int index = object->metaObject()->indexOfProperty(property.constData());
if (index >= 0) {
addPropertyWatch(id, object, debugId, object->metaObject()->property(index));
return true;
}
}
return false;
}
bool QDeclarativeWatcher::addWatch(int id, quint32 objectId, const QString &expr)
{
QObject *object = QDeclarativeDebugService::objectForId(objectId);
QDeclarativeContext *context = qmlContext(object);
if (context) {
QDeclarativeExpression *exprObj = new QDeclarativeExpression(context, object, expr);
exprObj->setNotifyOnValueChanged(true);
QDeclarativeWatchProxy *proxy = new QDeclarativeWatchProxy(id, exprObj, objectId, this);
exprObj->setParent(proxy);
m_proxies[id].append(proxy);
proxy->notifyValueChanged();
return true;
}
return false;
}
void QDeclarativeWatcher::removeWatch(int id)
{
if (!m_proxies.contains(id))
return;
QList<QPointer<QDeclarativeWatchProxy> > proxies = m_proxies.take(id);
qDeleteAll(proxies);
}
void QDeclarativeWatcher::addPropertyWatch(int id, QObject *object, quint32 debugId, const QMetaProperty &property)
{
QDeclarativeWatchProxy *proxy = new QDeclarativeWatchProxy(id, object, debugId, property, this);
m_proxies[id].append(proxy);
proxy->notifyValueChanged();
}
QT_END_NAMESPACE
#include <qdeclarativewatcher.moc>
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