qqmlpreviewservice.h

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// Copyright (C) 2018 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant

#ifndef QQMLPREVIEWSERVICE_H

#define QQMLPREVIEWSERVICE_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 "qqmlpreviewhandler.h"

#include "qqmlpreviewfileengine.h"

#include <private/qqmldebugserviceinterfaces_p.h>

#include <QtCore/qset.h>

#include <memory>

QT_BEGIN_NAMESPACE

class QQmlPreviewFileEngineHandler;

class QQmlPreviewHandler;

class QQmlPreviewServiceImpl : public QQmlDebugService

    Q_OBJECT

public:

    enum Command {

        File,

        Load,

        Request,

        Error,

        Rerun,

        Directory,

        ClearCache,

        Zoom,

        Fps,

        AnimationSpeed,

        Configuration,

        Confirmation,

        HotReloadFailure,

};

    static const QString s_key;

    QQmlPreviewServiceImpl(QObject *parent = nullptr);

    virtual ~QQmlPreviewServiceImpl();

    void messageReceived(const QByteArray &message) override;

    void engineAboutToBeAdded(QJSEngine *engine) override;

    void engineAboutToBeRemoved(QJSEngine *engine) override;

    void stateChanged(State state) override;

    void forwardRequest(const QString &file);

    void forwardError(const QString &error);

    void forwardFps(const QQmlPreviewHandler::FpsInfo &frames);

    void forwardHotReloadFailure(const QString &reason);

    QQuickItem *currentRootItem();

Q_SIGNALS:

    void error(const QString &file);

    void file(const QString &file, const QByteArray &contents);

    void directory(const QString &file, const QStringList &entries);

    void load(const QUrl &url);

    void drop(const QUrl &url);

    void rerun();

    void clearCache();

    void zoom(qreal factor);

    void animationSpeed(qreal factor);

private:

    void switchToInPlaceHandler();

    QScopedPointer<QQmlPreviewFileEngineHandler> m_fileEngine;

    QScopedPointer<QQmlPreviewFileLoader> m_loader;

    std::unique_ptr<QQmlPreviewHandler> m_handler;

    QUrl m_currentUrl;

    QSet<QUrl> m_servedUrls;

};

QT_END_NAMESPACE

#endif // QQMLPREVIEWSERVICE_H