/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** 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, Nokia gives you certain
** additional rights.  These rights are described in the Nokia Qt LGPL
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef QWINDOWSYSTEM_QWS_P_H
#define QWINDOWSYSTEM_QWS_P_H


//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of the QWSServer class.  This header file may change from
// version to version without notice, or even be removed.
//
// We mean it.
//

#include "private/qobject_p.h"
#include "qwindowsystem_qws.h"
#include "qbrush.h"
#include "qwsproperty_qws.h"
#include "qwscommand_qws_p.h"
#include "QtCore/qbasictimer.h"

QT_BEGIN_NAMESPACE

class QWSServerPrivate : public QObjectPrivate {
    friend class QCopChannel;
    friend class QWSMouseHandler;
    friend class QWSWindow;
    friend class QWSDisplay;
    friend class QWSInputMethod;
    Q_DECLARE_PUBLIC(QWSServer)

public:
    QWSServerPrivate()
        : screensaverintervals(0)
        , screensavereventblocklevel(-1), screensaverblockevents(false)
        , saver(0), cursorClient(0), mouseState(0), nReserved(0)
        , doClientIsActive(false)
    {
    }
    ~QWSServerPrivate()
    {
        closeDisplay();

        qDeleteAll(deletedWindows);
        delete [] screensaverintervals;
        delete saver;

        qDeleteAll(windows);
        windows.clear();

        delete bgBrush;
        bgBrush = 0;
    }
    QTime screensavertime;
    QTimer* screensavertimer;
    int* screensaverintervals;
    int screensavereventblocklevel;
    bool screensaverblockevents;
    bool screensaverblockevent( int index, int *screensaverinterval, bool isDown );
    QWSScreenSaver* saver;
    QWSClient *cursorClient;
    int mouseState;
//    bool prevWin;
    QList<QWSWindow*> deletedWindows;
    QList<int> crashedClientIds;

    void update_regions();
//private functions moved from class

private:
    void initServer(int flags);
#ifndef QT_NO_COP
    static void sendQCopEvent(QWSClient *c, const QString &ch,
                               const QString &msg, const QByteArray &data,
                               bool response = false);
#endif
    void move_region(const QWSRegionMoveCommand *);
    void set_altitude(const QWSChangeAltitudeCommand *);
    void set_opacity(const QWSSetOpacityCommand *);
    void request_focus(const QWSRequestFocusCommand *);
    QRegion reserve_region(QWSWindow *window, const QRegion &region);
    void request_region(int winId, const QString &surfaceKey,
                        const QByteArray &surfaceData,
                        const QRegion &region);
    void repaint_region(int winId, int windowFlags, bool opaque, const QRegion &);
    void destroy_region(const QWSRegionDestroyCommand *);
    void name_region(const QWSRegionNameCommand *);
    void set_identity(const QWSIdentifyCommand *);
#ifndef QT_NO_QWS_PROPERTIES
    bool get_property(int winId, int property, const char *&data, int &len);
#endif
#ifndef QT_NO_QWS_INPUTMETHODS
    void im_response(const QWSIMResponseCommand *);

    void im_update(const QWSIMUpdateCommand *);

    void send_im_mouse(const QWSIMMouseCommand *);
#endif
    // not in ifndef as this results in more readable functions.
    static void sendKeyEventUnfiltered(int unicode, int keycode, Qt::KeyboardModifiers modifiers,
                                       bool isPress, bool autoRepeat);
    static void sendMouseEventUnfiltered(const QPoint &pos, int state, int wheel = 0);
    static void emergency_cleanup();

    static QBrush *bgBrush;

    void sendMaxWindowRectEvents(const QRect &rect);

    void invokeIdentify(const QWSIdentifyCommand *cmd, QWSClient *client);
    void invokeCreate(QWSCreateCommand *cmd, QWSClient *client);
    void invokeRegionName(const QWSRegionNameCommand *cmd, QWSClient *client);
    void invokeRegion(QWSRegionCommand *cmd, QWSClient *client);
    void invokeRegionMove(const QWSRegionMoveCommand *cmd, QWSClient *client);
    void invokeRegionDestroy(const QWSRegionDestroyCommand *cmd, QWSClient *client);
    void invokeSetAltitude(const QWSChangeAltitudeCommand *cmd, QWSClient *client);
    void invokeSetOpacity(const QWSSetOpacityCommand *cmd, QWSClient *client);
#ifndef QT_NO_QWS_PROPERTIES
    void invokeAddProperty(QWSAddPropertyCommand *cmd);
    void invokeSetProperty(QWSSetPropertyCommand *cmd);
    void invokeRemoveProperty(QWSRemovePropertyCommand *cmd);
    void invokeGetProperty(QWSGetPropertyCommand *cmd, QWSClient *client);
#endif //QT_NO_QWS_PROPERTIES
    void invokeSetSelectionOwner(QWSSetSelectionOwnerCommand *cmd);
    void invokeConvertSelection(QWSConvertSelectionCommand *cmd);
    void invokeSetFocus(const QWSRequestFocusCommand *cmd, QWSClient *client);

    void initIO();
    void setFocus(QWSWindow*, bool gain);
#ifndef QT_NO_QWS_CURSOR
    void invokeDefineCursor(QWSDefineCursorCommand *cmd, QWSClient *client);
    void invokeSelectCursor(QWSSelectCursorCommand *cmd, QWSClient *client);
    void invokePositionCursor(QWSPositionCursorCommand *cmd, QWSClient *client);
#endif
    void invokeGrabMouse(QWSGrabMouseCommand *cmd, QWSClient *client);
    void invokeGrabKeyboard(QWSGrabKeyboardCommand *cmd, QWSClient *client);
#ifndef QT_NO_SOUND
    void invokePlaySound(QWSPlaySoundCommand *cmd, QWSClient *client);
#endif
#ifndef QT_NO_COP
    void invokeRegisterChannel(QWSQCopRegisterChannelCommand *cmd,
                                QWSClient *client);
    void invokeQCopSend(QWSQCopSendCommand *cmd, QWSClient *client);
#endif
    void invokeRepaintRegion(QWSRepaintRegionCommand *cmd,
                              QWSClient *client);
#ifndef QT_NO_QWSEMBEDWIDGET
    void invokeEmbed(QWSEmbedCommand *cmd, QWSClient *client);
#endif
#ifndef QT_NO_QWS_INPUTMETHODS
    void invokeIMResponse(const QWSIMResponseCommand *cmd,
                         QWSClient *client);
     void invokeIMUpdate(const QWSIMUpdateCommand *cmd,
                          QWSClient *client);
#endif
    void invokeFont(const QWSFontCommand *cmd, QWSClient *client);
    void invokeScreenTransform(const QWSScreenTransformCommand *cmd,
                               QWSClient *client);

    QWSMouseHandler* newMouseHandler(const QString& spec);
    void openDisplay();
    void closeDisplay();

    void showCursor();
    void hideCursor();
    void initializeCursor();

    void resetEngine();

//private Q_SLOTS:

#ifndef QT_NO_QWS_MULTIPROCESS
    void _q_clientClosed();
    void _q_doClient();
    void _q_deleteWindowsLater();
#endif

    void _q_screenSaverWake();
    void _q_screenSaverSleep();
    void _q_screenSaverTimeout();
#ifndef QT_NO_QWS_MULTIPROCESS
    void _q_newConnection();
#endif

//other private moved from class

    void disconnectClient(QWSClient *);
    void screenSave(int level);
    void doClient(QWSClient *);
    typedef QMap<int,QWSClient*>::Iterator ClientIterator;
    typedef QMap<int,QWSClient*> ClientMap;
    void handleWindowClose(QWSWindow *w);
    void releaseMouse(QWSWindow* w);
    void releaseKeyboard(QWSWindow* w);
    void updateClientCursorPos();

    uchar* sharedram;
    int ramlen;

    ClientMap clientMap;
#ifndef QT_NO_QWS_PROPERTIES
    QWSPropertyManager propertyManager;
#endif
    struct SelectionOwner {
        int windowid;
        struct Time {
            void set(int h, int m, int s, int s2) {
                hour = h; minute = m; sec = s; ms = s2;
            }
            int hour, minute, sec, ms;
        } time;
    } selectionOwner;
    QTime timer;
    int* screensaverinterval;

    QWSWindow *focusw;
    QWSWindow *mouseGrabber;
    bool mouseGrabbing;
    bool inputMethodMouseGrabbed;
    int swidth, sheight, sdepth;
#ifndef QT_NO_QWS_CURSOR
    bool haveviscurs;
    QWSCursor *cursor;      // cursor currently shown
    QWSCursor *nextCursor;  // cursor to show once grabbing is off
#endif

    bool disablePainting;
    QList<QWSMouseHandler*> mousehandlers;
#ifndef QT_NO_QWS_KEYBOARD
    QList<QWSKeyboardHandler*> keyboardhandlers;
#endif

    QList<QWSCommandStruct*> commandQueue;

    // Window management
    QList<QWSWindow*> windows; // first=topmost
    int nReserved;
    QWSWindow* newWindow(int id, QWSClient* client);
    QWSWindow* findWindow(int windowid, QWSClient* client = 0);
    void moveWindowRegion(QWSWindow*, int dx, int dy);
    void setWindowRegion(QWSWindow*, const QRegion &r);
    void raiseWindow(QWSWindow *, int = 0);
    void lowerWindow(QWSWindow *, int = -1);
    void exposeRegion(const QRegion &, int index = 0);

    void setCursor(QWSCursor *curs);

    // multimedia
#ifndef QT_NO_SOUND
    QWSSoundServer *soundserver;
#endif
#ifndef QT_NO_COP
    QMap<QString, QList<QWSClient*> > channels;
#endif

#ifndef QT_NO_QWS_MULTIPROCESS
    QWSServerSocket *ssocket;
#endif

    // filename -> refcount
    QMap<QByteArray, int> fontReferenceCount;
    QBasicTimer fontCleanupTimer;
    void referenceFont(QWSClientPrivate *client, const QByteArray &font);
    void dereferenceFont(QWSClientPrivate *client, const QByteArray &font);
    void cleanupFonts(bool force = false);
    void sendFontRemovedEvent(const QByteArray &font);

    bool doClientIsActive;
    QList<QWSClient*> pendingDoClients;
};

QT_END_NAMESPACE

#endif