/****************************************************************************

**

** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the QtDeclarative module of the Qt Toolkit.

**

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** 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.

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** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef QDECLARATIVECOMPONENT_P_H

#define QDECLARATIVECOMPONENT_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 "qdeclarativecomponent.h"

#include "private/qdeclarativeengine_p.h"

#include "private/qdeclarativecompositetypemanager_p.h"

#include "private/qbitfield_p.h"

#include "qdeclarativeerror.h"

#include "qdeclarative.h"

#include <QtCore/QString>

#include <QtCore/QStringList>

#include <QtCore/QList>

#include <private/qobject_p.h>

QT_BEGIN_NAMESPACE

class QDeclarativeComponent;

class QDeclarativeEngine;

class QDeclarativeCompiledData;

class QDeclarativeComponentAttached;

class QDeclarativeComponentPrivate : public QObjectPrivate

{

    Q_DECLARE_PUBLIC(QDeclarativeComponent)

public:

    QDeclarativeComponentPrivate() : typeData(0), progress(0.), start(-1), count(-1), cc(0), engine(0), creationContext(0) {}

    QObject *create(QDeclarativeContextData *, const QBitField &);

    QObject *beginCreate(QDeclarativeContextData *, const QBitField &);

    void completeCreate();

    QDeclarativeCompositeTypeData *typeData;

    void typeDataReady();

    void updateProgress(qreal);

    void fromTypeData(QDeclarativeCompositeTypeData *data);

    QUrl url;

    qreal progress;

    int start;

    int count;

    QDeclarativeCompiledData *cc;

    struct ConstructionState {

        ConstructionState() : componentAttached(0), completePending(false) {}

        QList<QDeclarativeEnginePrivate::SimpleList<QDeclarativeAbstractBinding> > bindValues;

        QList<QDeclarativeEnginePrivate::SimpleList<QDeclarativeParserStatus> > parserStatus;

        QList<QPair<QDeclarativeGuard<QObject>, int> > finalizedParserStatus;

        QDeclarativeComponentAttached *componentAttached;

        QList<QDeclarativeError> errors;

        bool completePending;

    };

    ConstructionState state;

    static QObject *begin(QDeclarativeContextData *ctxt, QDeclarativeEnginePrivate *enginePriv,

                          QDeclarativeCompiledData *component, int start, int count,

                          ConstructionState *state, const QBitField &bindings = QBitField());

    static void beginDeferred(QDeclarativeEnginePrivate *enginePriv, QObject *object, 

                              ConstructionState *state);

    static void complete(QDeclarativeEnginePrivate *enginePriv, ConstructionState *state);

    QDeclarativeEngine *engine;

    QDeclarativeGuardedContextData creationContext;

    void clear();

    static QDeclarativeComponentPrivate *get(QDeclarativeComponent *c) {

        return static_cast<QDeclarativeComponentPrivate *>(QObjectPrivate::get(c));

    }

};

class QDeclarativeComponentAttached : public QObject

{

    Q_OBJECT

public:

    QDeclarativeComponentAttached(QObject *parent = 0);

    ~QDeclarativeComponentAttached();

    void add(QDeclarativeComponentAttached **a) {

        prev = a; next = *a; *a = this;

        if (next) next->prev = &next;

    }

    void rem() {

        if (next) next->prev = prev;

        *prev = next;

        next = 0; prev = 0;

    }

    QDeclarativeComponentAttached **prev;

    QDeclarativeComponentAttached *next;

Q_SIGNALS:

    void completed();

    void destruction();

private:

    friend class QDeclarativeContextData;

    friend class QDeclarativeComponentPrivate;

};

QT_END_NAMESPACE

#endif // QDECLARATIVECOMPONENT_P_H