/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtQml 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QQMLCOMPONENT_P_H
#define QQMLCOMPONENT_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 "qqmlcomponent.h"

#include "qqmlengine_p.h"
#include "qqmltypeloader_p.h"
#include <private/qbitfield_p.h>
#include "qqmlvme_p.h"
#include "qqmlerror.h"
#include "qqml.h"
#include <private/qqmlobjectcreator_p.h>

#include <QtCore/QString>
#include <QtCore/QStringList>
#include <QtCore/QList>

#include <private/qobject_p.h>

QT_BEGIN_NAMESPACE

class QV8Engine;

class QQmlComponent;
class QQmlEngine;
class QQmlCompiledData;

class QQmlComponentAttached;
class Q_QML_PRIVATE_EXPORT QQmlComponentPrivate : public QObjectPrivate, public QQmlTypeData::TypeDataCallback
{
    Q_DECLARE_PUBLIC(QQmlComponent)
        
public:
    QQmlComponentPrivate()
        : typeData(0), progress(0.), start(-1), cc(0), engine(0), creationContext(0), depthIncreased(false) {}

    void loadUrl(const QUrl &newUrl, QQmlComponent::CompilationMode mode = QQmlComponent::PreferSynchronous);

    QObject *beginCreate(QQmlContextData *);
    void completeCreate();
    void initializeObjectWithInitialProperties(const QV4::ValueRef qmlGlobal, const QV4::ValueRef valuemap, QObject *toCreate);

    QQmlTypeData *typeData;
    virtual void typeDataReady(QQmlTypeData *);
    virtual void typeDataProgress(QQmlTypeData *, qreal);
    
    void fromTypeData(QQmlTypeData *data);

    QUrl url;
    qreal progress;

    int start;
    QQmlCompiledData *cc;

    struct ConstructionState {
        ConstructionState()
            : creator(0)
            , completePending(false)
        {}
        ~ConstructionState()
        {
            delete creator;
        }

        // --- new compiler
        QmlObjectCreator *creator;
        // --- old compiler
        QQmlVME vme;
        // ---
        QList<QQmlError> errors;
        bool completePending;
    };
    ConstructionState state;

    static void beginDeferred(QQmlEnginePrivate *enginePriv, QObject *object, 
                              ConstructionState *state);
    static void complete(QQmlEnginePrivate *enginePriv, ConstructionState *state);

    QQmlEngine *engine;
    QQmlGuardedContextData creationContext;
    bool depthIncreased;

    void clear();

    static QQmlComponentPrivate *get(QQmlComponent *c) {
        return static_cast<QQmlComponentPrivate *>(QObjectPrivate::get(c));
    }
};

QT_END_NAMESPACE

#endif // QQMLCOMPONENT_P_H