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

**

** 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 HbServers 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 <QMainWindow>

#include <QPushButton>

#include <hbapplication.h>

#include "hbsplashgenerator_p.h"

#include "hbsplashdefs_p.h"

#if defined(Q_OS_SYMBIAN)

#include "hbsplashgen_server_symbian_p.h"

#include <e32std.h>

#include <eikenv.h>

#include <apgwgnam.h>

CApaApplication *appFactory()

{

    return new HbSplashGenApplication;

}

#endif

int runMain(int argc, char **argv, void *mutexToSignal)

{

#if defined(Q_OS_SYMBIAN)

    HbApplication app(appFactory, argc, argv, Hb::NoSplash);

    CEikonEnv *env = CEikonEnv::Static();

    if (env) {

        CApaWindowGroupName *wgName = CApaWindowGroupName::NewLC(env->WsSession());

        env->RootWin().SetOrdinalPosition(0, ECoeWinPriorityNeverAtFront); // avoid coming to foreground

        wgName->SetHidden(ETrue); // hide from FSW, OOM fw, GOOM fw, etc.

        wgName->SetSystem(ETrue); // allow only apps with PowerManagement cap to shut us down

        wgName->SetCaptionL(hbsplash_server_name);

        wgName->SetAppUid(KNullUid);

        wgName->SetWindowGroupName(env->RootWin());

        CleanupStack::PopAndDestroy();

        RThread::RenameMe(hbsplash_server_name);

        RProcess process;

        process.SetPriority(EPriorityForeground);

        process.Close();

    }

#else

    Q_UNUSED(mutexToSignal);

    HbApplication app(argc, argv, Hb::NoSplash);

#endif

    qDebug("[hbsplashgenerator] initializing generator");

    HbSplashGenerator gen;

    bool forceRegen = false;

    char **args = argv;

    while (*++args) {

        if (!qstrcmp(*args, "-forcegen")) {

            forceRegen = true;

            break;

        }

    }

#if defined(Q_OS_SYMBIAN) || defined(HB_Q_WS_MAEMO)

    app.setQuitOnLastWindowClosed(false);

#else

    qDebug("[hbsplashgenerator] initializing ui");

    QMainWindow mw;

    QPushButton *btnRegen = new QPushButton("Regenerate");

    gen.connect(btnRegen, SIGNAL(clicked()), SLOT(uncachedRegenerate()));

    mw.setCentralWidget(btnRegen);

    mw.show();

#endif

    // The server must be initialized before calling HbSplashGenerator::start().

    qDebug("[hbsplashgenerator] starting server");

    HbSplashGenServer server(&gen);

    // If there was an error then exit right away.

    if (!server.startupSuccess()) {

        qDebug("[hbsplashgenerator] exiting due to failed server startup");

        return 0;

    }

#endif

    qDebug("[hbsplashgenerator] starting generator");

    gen.start(forceRegen);

#if defined(Q_OS_SYMBIAN)

    if (mutexToSignal) {

        qDebug("[hbsplashgenerator] signaling mutex");

        static_cast<RMutex *>(mutexToSignal)->Signal();

    }

#endif

    qDebug("[hbsplashgenerator] entering event loop");

    int ret = app.exec();

    qDebug("[hbsplashgenerator] exiting");

    return ret;

}

int main(int argc, char **argv)

{

    bool canStart = true;

    void *mutexToSignal = 0;

#if defined(Q_OS_SYMBIAN)

    RMutex mutex;

    _LIT(KGlobalLockName, "hbsplgen");

    bool mutexOk = mutex.OpenGlobal(KGlobalLockName) == KErrNone;

    if (!mutexOk) {

        mutexOk = mutex.CreateGlobal(KGlobalLockName) == KErrNone;

    }

    if (mutexOk) {

        mutex.Wait();

        mutexToSignal = &mutex;

    } else {

        qDebug("[hbsplashgenerator] failed to open/create mutex");

    }

    // Due to the mutex-based synchronization we should now be able to

    // use TFindServer to safely check if there is another instance

    // already running.

    TFindServer findServer(hbsplash_server_name);

    TFullName serverName;

    if (findServer.Next(serverName) == KErrNone) {

        qDebug("[hbsplashgenerator] found another instance, exiting");

        canStart = false;

        RProcess::Rendezvous(KErrAlreadyExists);

    }

#endif

    int result = 0;

    if (canStart) {

        try {

            result = runMain(argc, argv, mutexToSignal);

        } catch (...) {

            qDebug("[hbsplashgenerator] exiting due to exception in main()");

        }

    }

#if defined(Q_OS_SYMBIAN)

    if (mutexOk) {

        if (mutex.IsHeld()) {

            mutex.Signal();

        }

        mutex.Close();

    }

#endif

    return result;

}