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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.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QMLCONTEXT_P_H
#define QMLCONTEXT_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qmlcontext.h"
#include "qmldeclarativedata_p.h"
#include "qmlengine_p.h"
#include "qmlintegercache_p.h"
#include "qmltypenamecache_p.h"
#include <QtCore/qhash.h>
#include <QtScript/qscriptvalue.h>
#include <QtCore/qset.h>
#include <private/qobject_p.h>
#include "qmlguard_p.h"
QT_BEGIN_NAMESPACE
class QmlContext;
class QmlExpression;
class QmlEngine;
class QmlExpression;
class QmlExpressionPrivate;
class QmlAbstractExpression;
class QmlBinding_Id;
class QmlCompiledBindings;
class Q_DECLARATIVE_EXPORT QmlContextPrivate : public QObjectPrivate
{
Q_DECLARE_PUBLIC(QmlContext)
public:
QmlContextPrivate();
QmlContext *parent;
QmlEngine *engine;
bool isInternal;
QmlIntegerCache *propertyNames;
QList<QVariant> propertyValues;
int notifyIndex;
QObjectList defaultObjects;
int highPriorityCount;
QList<QScriptValue> scripts;
void addScript(const QmlParser::Object::ScriptBlock &, QObject *);
QUrl url;
QmlTypeNameCache *imports;
void init();
void invalidateEngines();
void refreshExpressions();
QSet<QmlContext *> childContexts;
QmlAbstractExpression *expressions;
QmlDeclarativeData *contextObjects;
struct IdNotifier
{
inline IdNotifier();
inline ~IdNotifier();
inline void clear();
IdNotifier *next;
IdNotifier**prev;
QObject *target;
int methodIndex;
};
struct ContextGuard : public QmlGuard<QObject>
{
inline ContextGuard();
inline ContextGuard &operator=(QObject *obj);
inline virtual void objectDestroyed(QObject *);
QmlContextPrivate *priv;
IdNotifier *bindings;
};
ContextGuard *idValues;
int idValueCount;
void setIdProperty(int, QObject *);
void setIdPropertyData(QmlIntegerCache *);
void destroyed(ContextGuard *);
static QmlContextPrivate *get(QmlContext *context) {
return static_cast<QmlContextPrivate *>(QObjectPrivate::get(context));
}
static QmlContext *get(QmlContextPrivate *context) {
return static_cast<QmlContext *>(context->q_func());
}
QmlCompiledBindings *optimizedBindings;
// Only used for debugging
QList<QPointer<QObject> > instances;
static int context_count(QmlListProperty<QObject> *);
static QObject *context_at(QmlListProperty<QObject> *, int);
};
QmlContextPrivate::IdNotifier::IdNotifier()
: next(0), prev(0), target(0), methodIndex(-1)
{
}
QmlContextPrivate::IdNotifier::~IdNotifier()
{
clear();
}
void QmlContextPrivate::IdNotifier::clear()
{
if (next) next->prev = prev;
if (prev) *prev = next;
next = 0; prev = 0; target = 0;
methodIndex = -1;
}
QmlContextPrivate::ContextGuard::ContextGuard()
: priv(0), bindings(0)
{
}
QmlContextPrivate::ContextGuard &QmlContextPrivate::ContextGuard::operator=(QObject *obj)
{
(QmlGuard<QObject>&)*this = obj; return *this;
}
void QmlContextPrivate::ContextGuard::objectDestroyed(QObject *)
{
priv->destroyed(this);
}
QT_END_NAMESPACE
#endif // QMLCONTEXT_P_H
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