/****************************************************************************
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** contained in the Technology Preview License Agreement accompanying
** this package.
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** Foundation and appearing in the file LICENSE.LGPL included in the
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**
** If you have questions regarding the use of this file, please contact
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** $QT_END_LICENSE$
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****************************************************************************/

#ifndef QDECLARATIVEWORKERSCRIPT_P_H
#define QDECLARATIVEWORKERSCRIPT_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 "qdeclarative.h"
#include "qdeclarativeparserstatus.h"
#include <private/qlistmodelinterface_p.h>

#include <QtCore/qthread.h>
#include <QtScript/qscriptvalue.h>
#include <QtCore/qurl.h>

QT_BEGIN_NAMESPACE

class QDeclarativeWorkerScript;
class QDeclarativeWorkerScriptEnginePrivate;
class QDeclarativeWorkerScriptEngine : public QThread
{
Q_OBJECT
public:
    QDeclarativeWorkerScriptEngine(QDeclarativeEngine *parent = 0);
    virtual ~QDeclarativeWorkerScriptEngine();

    int registerWorkerScript(QDeclarativeWorkerScript *);
    void removeWorkerScript(int);
    void executeUrl(int, const QUrl &);
    void sendMessage(int, const QVariant &);

protected:
    virtual void run();

private:
    QDeclarativeWorkerScriptEnginePrivate *d;
};

class QDeclarativeWorkerScript : public QObject, public QDeclarativeParserStatus
{
    Q_OBJECT
    Q_PROPERTY(QUrl source READ source WRITE setSource NOTIFY sourceChanged)

    Q_INTERFACES(QDeclarativeParserStatus)
public:
    QDeclarativeWorkerScript(QObject *parent = 0);
    virtual ~QDeclarativeWorkerScript();

    QUrl source() const;
    void setSource(const QUrl &);

public slots:
    void sendMessage(const QScriptValue &);

signals:
    void sourceChanged();
    void message(const QScriptValue &messageObject);

protected:
    virtual void componentComplete();
    virtual bool event(QEvent *);

private:
    QDeclarativeWorkerScriptEngine *m_engine;
    int m_scriptId;
    QUrl m_source;
};

class QDeclarativeWorkerListModelAgent;
class QDeclarativeWorkerListModel : public QListModelInterface
{
    Q_OBJECT
    Q_PROPERTY(int count READ count NOTIFY countChanged)

public:
    QDeclarativeWorkerListModel(QObject * = 0);
    virtual ~QDeclarativeWorkerListModel();

    Q_INVOKABLE void clear();
    Q_INVOKABLE void remove(int index);
    Q_INVOKABLE void append(const QScriptValue &);
    Q_INVOKABLE void insert(int index, const QScriptValue&);
    Q_INVOKABLE QScriptValue get(int index) const;
    Q_INVOKABLE void set(int index, const QScriptValue &);

    QDeclarativeWorkerListModelAgent *agent();

    virtual QList<int> roles() const;
    virtual QString toString(int role) const;
    virtual int count() const;
    virtual QHash<int,QVariant> data(int index, const QList<int> &roles = (QList<int>())) const;
    virtual QVariant data(int index, int role) const;

Q_SIGNALS:
    void countChanged();

private:
    friend class QDeclarativeWorkerListModelAgent;

    QHash<int, QString> m_roles;
    QHash<QString, int> m_strings;
    QList<QHash<int, QVariant> > m_values;

    QDeclarativeWorkerListModelAgent *m_agent;
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QDeclarativeWorkerScript);
QML_DECLARE_TYPE(QDeclarativeWorkerListModel);

#endif // QDECLARATIVEWORKERSCRIPT_P_H