/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbCore module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** 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 developer.feedback@nokia.com.

**

****************************************************************************/

#include "hbdevicedialogserverstatus_p.h"

#include <e32base.h>

#include <e32std.h>

#include <e32property.h>

#include <QApplication>

#include <QEvent>

// There is only one fade control setter, all other applications are getters.

// Device dialog is the setter.

const TUid PropertyCategoryUid = {0x20022FC5};

const TUint StatusKey = 'Stat';

class HbDeviceDialogServerStatusPrivate  : public CActive

{

public:

    HbDeviceDialogServerStatusPrivate(bool isServer, HbDeviceDialogServerStatus *parent);

    ~HbDeviceDialogServerStatusPrivate();

    HbDeviceDialogServerStatus::StatusFlags get();

    void set(HbDeviceDialogServerStatus::StatusFlags status);

    void start();

public: // from CActive

    void RunL();

    void DoCancel();

public:

    HbDeviceDialogServerStatus *p;

    RProperty mProperty;

    bool mIsSetter;

    bool mEnableMonitoring;

    HbDeviceDialogServerStatus::StatusFlags mSetValue;

};

HbDeviceDialogServerStatusPrivate::HbDeviceDialogServerStatusPrivate(

    bool isServer, HbDeviceDialogServerStatus *parent) :

    CActive(EPriorityHigh), p(parent)

{

    RProcess process;

    mIsSetter = isServer;

    mSetValue = HbDeviceDialogServerStatus::NoFlags;

    mEnableMonitoring = false;

    // Device dialog server is a writer and creates the property.

    if (mIsSetter) {

        _LIT_SECURITY_POLICY_PASS(KRdPolicy); // all pass

        _LIT_SECURITY_POLICY_S0(KWrPolicy, PropertyCategoryUid.iUid); // pass device dialog server

        mProperty.Define(PropertyCategoryUid, StatusKey, RProperty::EInt, KRdPolicy, KWrPolicy);

    }

    mProperty.Attach(PropertyCategoryUid, StatusKey);

    if (!mIsSetter) {

        CActiveScheduler::Add(this);

    }

    else {

        mProperty.Set(PropertyCategoryUid, StatusKey, mSetValue);

    }

}

HbDeviceDialogServerStatusPrivate::~HbDeviceDialogServerStatusPrivate()

{

    Cancel();

    mProperty.Close();

}

// Get status

HbDeviceDialogServerStatus::StatusFlags HbDeviceDialogServerStatusPrivate::get()

{

    TInt status = HbDeviceDialogServerStatus::NoFlags;

    if (!mIsSetter) {

        mProperty.Get(PropertyCategoryUid, StatusKey, status);

    } else {

        status = mSetValue;

    }

    return static_cast<HbDeviceDialogServerStatus::StatusFlags>(status);

}

// Set (write) status

void HbDeviceDialogServerStatusPrivate::set(HbDeviceDialogServerStatus::StatusFlags status)

{

    if (mIsSetter && status != mSetValue) {

        mSetValue = status;

        mProperty.Set(PropertyCategoryUid, StatusKey, status);

    }

}

// Start property watch request

void HbDeviceDialogServerStatusPrivate::start()

{

    mProperty.Subscribe(iStatus);

    SetActive();

}

// Property value has changed

void HbDeviceDialogServerStatusPrivate::RunL()

{

    TInt completionCode = iStatus.Int();

    if (completionCode != KErrCancel) {

        start();

    }

    if (completionCode == KErrNone) {

        emit p->statusChanged();

    }

}

// Cancel property subscribe

void HbDeviceDialogServerStatusPrivate::DoCancel()

{

    mProperty.Cancel();

}

HbDeviceDialogServerStatus::HbDeviceDialogServerStatus(bool isServer, QObject *parent) :

    QObject(parent)

{

    d = new HbDeviceDialogServerStatusPrivate(isServer, this);

}

HbDeviceDialogServerStatus::~HbDeviceDialogServerStatus()

{

    delete d;

}

// Set (write) status

void HbDeviceDialogServerStatus::setStatus(StatusFlags status)

{

    d->set(status);

}

// Get (read) status

HbDeviceDialogServerStatus::StatusFlags HbDeviceDialogServerStatus::status()

{

    return d->get();

}

// Enable status monitoring and change signaling

void HbDeviceDialogServerStatus::enableMonitoring(bool enable)

{

    if (d->mEnableMonitoring != enable) {

        d->mEnableMonitoring = enable;

        if (d->mEnableMonitoring) {

            d->start();

        } else {

            d->Cancel();

        }

    }

}

// Verify that device dialog server is running

bool HbDeviceDialogServerStatus::isRunning()

{

    // Check if device dialog process exists. Assumes that if process exists,

    // the server is running properly.

    _LIT(KName, "hbdevicedialogappserver");

    RProcess process;

    bool exists = process.Open(KName) == KErrNone;

    process.Close();

    return exists;

}