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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the WebClient project on Trolltech Labs.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 or 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 GNU
** General Public Licensing requirements will be met:
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/
#ifndef EVENTQUEUE_H
#define EVENTQUEUE_H
#include <QtGui>
#include <json.h>
#include "webclientserver.h"
struct EventEntry
{
enum Type { Noop, Update, StaticUpdate, Show, Hide, Geometry, ShowLineEdit, ParentChange, TextUpdate };
inline EventEntry(int id, Type type)
:id(id), type(type) {}
inline EventEntry():id(0), type(Noop) {};
inline bool operator==(const EventEntry &other) const
{
return (id == other.id && type == other.type);
}
int id;
Type type;
};
class EventQueue : public QObject
{
public:
EventQueue(Session *session = 0);
void setSession(Session *session);
void reset();
void handleRequest(HttpRequest *request, HttpResponse *response);
void handleJsonRequest(QByteArray jsonText, HttpResponse *response);
void handleImageRequest(json_object* jsonRequest, HttpResponse *response);
void handleStaticImageRequest(json_object* jsonRequest, HttpResponse *response);
void addUpdateEvent(quintptr id, const QImage &image, QRect updateRect);
void addStaticUpdateEvent(quintptr id, uint hash, const QByteArray &pngImage);
void addStaticUpdateEvent(quintptr id);
void addGeometryEvent(quintptr id, QRect globalGeometry);
void addParentChangeEvent(quintptr id);
void addEvent(quintptr id, EventEntry::Type type);
QByteArray queueToByteArray();
json_object *toJson(const EventEntry &event) const;
json_object *jsonShowEvent(const EventEntry &event) const;
json_object *jsonShowLineEditEvent(const EventEntry &event) const;
json_object *jsonHideEvent(const EventEntry &event) const;
json_object *jsonUpdateEvent(const EventEntry &event) const;
json_object *jsonStaticUpdateEvent(const EventEntry &event) const;
json_object *jsonGeometryEvent(const EventEntry &event) const;
json_object *jsonParentChangeEvent(const EventEntry &event) const;
json_object *jsonTextUpdateEvent(const EventEntry &event) const;
json_object *toJsonWidgetType(QWidget *widget) const;
bool isEmpty() { return events.isEmpty(); }
static QByteArray pngCompress(const QImage &image);
//private:
QPointer<Session> m_session;
QQueue<EventEntry> events;
QHash<quintptr, QImage> images;
QHash<quintptr, QByteArray> compressedImages;
QHash<quintptr, QByteArray> staticCompressedImages; // id -> png data
QHash<uint, quintptr> staticImageHashToWidgetId; // TODO: figure out a better way to map
QHash<quintptr, uint> staticWidgetIdToImageHash; // widget id <-> image hash <-> image data
QHash<quintptr, QRect> geometries;
};
#endif
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