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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of libmeegotouch.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** This library is free software; you can redistribute it and/or
** modify it 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.
**
****************************************************************************/
#ifndef MTHEMEDAEMONSERVER_H
#define MTHEMEDAEMONSERVER_H
#include <QObject>
#include <QQueue>
#include <QLocalServer>
#include <MGConfItem>
#include <QTimer>
#include <QSocketNotifier>
#include <mthemedaemon.h>
class QLocalSocket;
class MThemeDaemonClient;
//! \internal
class MThemeDaemonServer : public QObject
{
Q_OBJECT
public:
/**
* @param serverAddress Address that is used for the local connection
* between the clients and the server. If an empty
* string is passed, M::MThemeDaemonProtocol::ServerAddress
* is used per default.
*/
MThemeDaemonServer(const QString &serverAddress = QString());
virtual ~MThemeDaemonServer();
static void hupSignalHandler(int unused);
static void termSignalHandler(int unused);
static void intSignalHandler(int unused);
public slots:
void themeChanged(bool forceReload = false);
void setSlowDown(int slowDown);
// Qt signal handlers.
void handleSigHup();
void handleSigTerm();
void handleSigInt();
private slots:
void clientConnected();
void clientDisconnected();
void clientDataAvailable();
void themeChangeTimeout();
void localeChanged();
void processOneQueueItem();
void handleUpdatedMostUsedPixmaps(const M::MThemeDaemonProtocol::MostUsedPixmaps& mostUsed);
private:
void loadPriorities(const QString& filename);
void pixmapUsed(MThemeDaemonClient *client,
const M::MThemeDaemonProtocol::PixmapIdentifier &id,
quint64 sequenceNumber);
void pixmapRequested(MThemeDaemonClient *client,
const M::MThemeDaemonProtocol::PixmapIdentifier &id,
qint32 priority,
quint64 sequenceNumber);
void pixmapReleaseRequested(MThemeDaemonClient *client,
const M::MThemeDaemonProtocol::PixmapIdentifier &id,
quint64 sequenceNumber);
void themeChangeApplied(MThemeDaemonClient *client,
qint32 priority, quint64 sequenceNumber);
void ackMostUsedPixmaps(MThemeDaemonClient *client, quint64 sequenceNumber);
void themeDaemonStatus(MThemeDaemonClient *client, quint64 sequenceNumber) const;
void finalizeThemeChange();
bool createCacheDir(const QString& path);
private:
struct QueueItem
{
quint64 sequenceNumber;
MThemeDaemonClient * client;
M::MThemeDaemonProtocol::PixmapIdentifier pixmapId;
QueueItem(MThemeDaemonClient *c, M::MThemeDaemonProtocol::PixmapIdentifier p,
quint64 s = 0) : sequenceNumber(s), client(c), pixmapId(p) {}
// Ignore the sequence number when testing for equality. A custom
// predicate would be more appropriate, if Qt would support that.
bool operator==(const QueueItem &other) const
{ return (client == other.client && pixmapId == other.pixmapId); }
bool operator!=(const QueueItem &other) const
{ return (client != other.client || pixmapId != other.pixmapId); }
};
QLocalServer server;
QHash<QLocalSocket *, MThemeDaemonClient *> registeredClients;
MThemeDaemon daemon;
MGConfItem currentTheme;
MGConfItem currentLocale;
QString defaultTheme;
bool delayedThemeChange;
int slowDown;
QMap<qint32, QQueue<QueueItem> > loadPixmapsQueue;
QQueue<QueueItem> releasePixmapsQueue;
QQueue<MThemeDaemonClient*> clearCustomDirectoriesQueue;
QTimer processQueueTimer;
QList<MThemeDaemonClient*> clientsThatHaveNotYetAppliedThemeChange;
QList<PixmapCacheEntry*> pixmapsToDeleteWhenThemeChangeHasCompleted;
QHash<quint64, QList<MThemeDaemonClient*> > clientsThatHaveNotYetUpdatedMostUsed;
QHash<quint64, QList<M::MThemeDaemonProtocol::PixmapIdentifier> > pixmapsToDeleteWhenUpdatedMostUsed;
quint64 sequenceCounter;
qint32 priorityForegroundApplication;
static int sighupFd[2];
static int sigtermFd[2];
static int sigintFd[2];
QSocketNotifier *snHup;
QSocketNotifier *snTerm;
QSocketNotifier *snInt;
};
//! \internal_end
#endif
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