/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Interface to Browser for handling embedded system info requests.

*

*/

// INCLUDE FILES

#include <e32std.h>

#include <npupp.h>

#include <string.h>

#include <utf.h>

#include <MProfileEngine.h>

#include <MProfile.h>

#include "SystemInfoPlugin.h"

#include "NetworkObserver.h"

#include "PowerObserver.h"

#include "SystemInfoMisc.h"

// CONSTANTS

enum TIdentifiersNames

    {

    EIdChargeLevel,

    EIdOnChargeLevel,

    EIdChargerConnected,

    EIdOnChargerConnected,

    EIdSignalBars,

    EIdNetworkName,

    EIdNetworkRegistrationStatus,

    EIdOnNetworkRegistrationStatus,

    EIdLightMinIntensity,

    EIdLightMaxIntensity,

    EIdLightDefaultIntensity,

    EIdLightInfiniteDuration,

    EIdLightMaxDuration,

    EIdLightDefaultCycleTime,

    EIdLightTargetPrimaryDisplayAndKeyboard,

    EIdLightTargetSystem,

    EIdLightOn,

    EIdLightBlink,

    EIdLightOff,

    EIdVibraMinIntensity,

    EIdVibraMaxIntensity,

    EIdVibraMaxDuration,

    EIdVibraSettings,

    EIdStartVibra,

    EIdStopVibra,

    EIdBeep,

    EIdTotalRam,

    EIdFreeRam,

    EIdDriveList,

    EIdDriveSize,

    EIdDriveFree,

    EIdLanguage,

    EIdLast

    };

const NPUTF8 *systemInfoPluginIdentifierNames[EIdLast] =

    {

    "chargelevel",

    "onchargelevel",

    "chargerconnected",

    "onchargerconnected",

    "signalbars",

    "networkname",

    "networkregistrationstatus",

    "onnetworkregistrationstatus",

    "lightminintensity",

    "lightmaxintensity",

    "lightdefaultintensity",

    "lightinfiniteduration",

    "lightmaxduration",

    "lightdefaultcycletime",

    "lighttargetprimarydisplayandkeyboard",

    "lighttargetsystem",

    "lighton",

    "lightblink",

    "lightoff",

    "vibraminintensity",

    "vibramaxintensity",

    "vibramaxduration",

    "vibrasettings",

    "startvibra",

    "stopvibra",

    "beep",

    "totalram",

    "freeram",

    "drivelist",

    "drivesize",

    "drivefree",

    "language"

    };

const TBool IsMethod[EIdLast] =

    {

    EFalse, // "chargelevel"

    EFalse, // "onchargelevel"

    EFalse, // "chargerconnected"

    EFalse, // "onchargerconnected"

    EFalse, // "signalbars"

    EFalse, // "networkname"

    EFalse, // "networkregistrationstatus"

    EFalse, // "onnetworkregistrationstatus"

    EFalse, // "lightminintensity"

    EFalse, // "lightmaxintensity"

    EFalse, // "lightdefaultintensity"

    EFalse, // "lightinfiniteduration"

    EFalse, // "lightmaxduration"

    EFalse, // "lightdefaultcycletime"

    EFalse, // "lighttargetprimarydisplayandkeyboard"

    EFalse, // "lighttargetsystem"

    ETrue, // "lighton"

    ETrue, // "lightblink"

    ETrue, // "lightoff"

    EFalse, // "vibraminintensity"

    EFalse, // "vibramaxintensity"

    EFalse, // "vibramaxduration"

    EFalse, // "vibrasettings"

    ETrue, // "startvibra"

    ETrue, // "stopvibra"

    ETrue, // "beep"

    EFalse, // "totalram"

    EFalse, // "freeram"

    EFalse, // "drivelist"

    ETrue, // "drivesize"

    ETrue, // "drivefree"

    EFalse  // "language"

    };

// ============================ MEMBER FUNCTIONS ===============================

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::CSystemInfoPlugin

// C++ default constructor can NOT contain any code, that

// might leave.

// ----------------------------------------------------------------------------

CSystemInfoPlugin::CSystemInfoPlugin()

    {

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::ConstructL

// Symbian 2nd phase constructor can leave.

// ----------------------------------------------------------------------------

void CSystemInfoPlugin::ConstructL()

    {

    iSystemInfoPluginIdentifiers = new (ELeave) NPIdentifier[EIdLast];

    NPN_GetStringIdentifiers( systemInfoPluginIdentifierNames, EIdLast,

                              iSystemInfoPluginIdentifiers );

    iUid = RProcess().SecureId();

    // need profile to determine silent mode for beep control

    iProfileEngine = CreateProfileEngineL();

    // sysinfo feature class instances

    iPowerObserver = CPowerObserver::NewL( this );

    iNetworkObserver = CNetworkObserver::NewL( this );

    iSystemInfoMisc = CSystemInfoMisc::NewL();

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::NewL

// Two-phased constructor.

// ----------------------------------------------------------------------------

CSystemInfoPlugin* CSystemInfoPlugin::NewL()

    {

    CSystemInfoPlugin* self = new (ELeave) CSystemInfoPlugin;

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::Destructor

// ----------------------------------------------------------------------------

CSystemInfoPlugin::~CSystemInfoPlugin()

    {

    delete [] iSystemInfoPluginIdentifiers;

    if (iProfileEngine != NULL)

        {

        iProfileEngine->Release();

        }

    // sysinfo feature class instances

    delete iPowerObserver;

    delete iNetworkObserver;

    delete iSystemInfoMisc;

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::Deallocate

//

// ----------------------------------------------------------------------------

void CSystemInfoPlugin::Deallocate()

    {

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::InvokeCallback

//

// ----------------------------------------------------------------------------

bool CSystemInfoPlugin::InvokeCallback( TDesC8& name, const NPVariant *args, uint32_t argCount )

    {

    CSystemInfoPluginEcomMain* lSystemInfoPPluginEcomMain

        = (CSystemInfoPluginEcomMain*) Dll::Tls();

    NPNetscapeFuncs* lNetscapeFuncs = lSystemInfoPPluginEcomMain->Funcs();

    if ( lNetscapeFuncs && iInstanceHandle )

        {

        void* value = 0;

        NPError npErr = lNetscapeFuncs->getvalue( iInstanceHandle, NPNVWindowNPObject,

                                                 (void*)&value );

        if ( npErr == NPERR_NO_ERROR )

            {

            NPVariant resultVariant;

            VOID_TO_NPVARIANT( resultVariant );

            NPIdentifier ident = NPN_GetStringIdentifier( (const NPUTF8 *)(name.Ptr()) );

            return NPN_Invoke( iInstanceHandle, (NPObject*)value, ident,

                               args, argCount, &resultVariant );

            }

        }

    return false;

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::HasMethod

//

// ----------------------------------------------------------------------------

bool CSystemInfoPlugin::HasMethod( NPIdentifier name )

    {

    for (TInt i= 0; i < EIdLast; i++)

        {

        if ( name == iSystemInfoPluginIdentifiers[i] )

            {

            return IsMethod[i];

            }

        }

    return false;

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::VariantToInt

//

// ----------------------------------------------------------------------------

void CSystemInfoPlugin::VariantToInt( NPVariant& v, TInt& i )

    {

    if ( NPVARIANT_IS_INT32( v ) )

        {

        i = NPVARIANT_TO_INT32( v );

        }

    else if ( NPVARIANT_IS_DOUBLE( v ) )

        {

        double d = NPVARIANT_TO_DOUBLE( v );

        i = d;

        }

    // leave unchanged if some other type tag on variant

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::Invoke

//

// ----------------------------------------------------------------------------

bool CSystemInfoPlugin::Invoke( NPIdentifier name,

                                NPVariant* args,

                                uint32_t argCount,

                                NPVariant *result )

    {

    bool ret = false;

    VOID_TO_NPVARIANT( *result );

    if ( name == iSystemInfoPluginIdentifiers[EIdBeep] )

        {

        // don't beep if profile is silent

        MProfile* profile = NULL;

        TRAPD( error,

               profile = iProfileEngine->ActiveProfileL() );

        if ( KErrNone != error )

            {

            return true;

            }

        if ( EFalse == profile->IsSilent() )

            {

            TInt f = 440; // default 440 hertz

            TInt d = 500; // default 0.5 seconds (in milliseconds)

            if ( argCount > 0 ) VariantToInt( args[0], f );

            if ( argCount > 1 ) VariantToInt( args[1], d );

            // convert duration from milliseconds to microseconds, the

            // underlying functionality doesn't really handle microseconds

            // even though the interface specs it as microseconds

            d = d * 1000;

            // Note that d = 0 seems to mean "forever". Also, there

            // are max and min frequencies but they are not defined.

            // Below min there is silence, above max the equation

            // seems to be f = min( max_freq, f)

            iSystemInfoMisc->Beep( f, d );

            }

        profile->Release();

        ret = true;

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightOn] )

        {

        TInt l = iSystemInfoMisc->LightTargetSystem();

        TInt d = iSystemInfoMisc->LightInfiniteDuration();

        TInt i = iSystemInfoMisc->LightDefaultIntensity();

        TInt f = 1;

        if ( argCount > 0 ) VariantToInt( args[0], l );

        if ( argCount > 1 ) VariantToInt( args[1], d );

        if ( argCount > 2 ) VariantToInt( args[2], i );

        if ( argCount > 3 ) VariantToInt( args[3], f );

        iSystemInfoMisc->LightOn( l, d, i, f );

        ret = true;

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightBlink] )

        {

        TInt l = iSystemInfoMisc->LightTargetSystem();

        TInt d = iSystemInfoMisc->LightInfiniteDuration();

        TInt don = iSystemInfoMisc->LightDefaultCycleTime();

        TInt doff = iSystemInfoMisc->LightDefaultCycleTime();

        TInt i = iSystemInfoMisc->LightDefaultIntensity();

        if ( argCount > 0 ) VariantToInt( args[0], l );

        if ( argCount > 1 ) VariantToInt( args[1], d );

        if ( argCount > 2 ) VariantToInt( args[2], don );

        if ( argCount > 3 ) VariantToInt( args[3], doff );

        if ( argCount > 4 ) VariantToInt( args[4], i );

        iSystemInfoMisc->LightBlink( l, d, don, doff, i );

        ret = true;

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightOff] )

        {

        TInt l = iSystemInfoMisc->LightTargetSystem();

        TInt d = iSystemInfoMisc->LightInfiniteDuration();

        TInt f = 1;

        if ( argCount > 0 ) VariantToInt( args[0], l );

        if ( argCount > 1 ) VariantToInt( args[1], d );

        if ( argCount > 2 ) VariantToInt( args[2], f );

        iSystemInfoMisc->LightOff( l, d, f );

        ret = true;

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdStartVibra] )

        {

        TInt d = iSystemInfoMisc->VibraMaxDuration();

        TInt i = iSystemInfoMisc->VibraMaxIntensity();

        if ( argCount > 0 ) VariantToInt( args[0], d );

        if ( argCount > 1 ) VariantToInt( args[1], i );

        iSystemInfoMisc->StartVibra( d, i );

        ret = true;

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdStopVibra] )

        {

        iSystemInfoMisc->StopVibra();

        ret = true;

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdDriveSize] )

        {

        TUint c = 0;

        if ( argCount > 0 && NPVARIANT_IS_STRING( args[0] ) )

            {

            NPString nps = NPVARIANT_TO_STRING( args[0] );

            if ( nps.UTF8Characters ) c = nps.UTF8Characters[0];

            }

        if ( c > 0 )

            {

            TChar drive( c );

            TReal size = iSystemInfoMisc->DriveSize( drive );

            DOUBLE_TO_NPVARIANT( size, *result );

            ret = true;

            }

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdDriveFree] )

        {

        TUint c = 0;

        if ( argCount > 0 && NPVARIANT_IS_STRING( args[0] ) )

            {

            NPString nps = NPVARIANT_TO_STRING( args[0] );

            if ( nps.UTF8Characters ) c = nps.UTF8Characters[0];

            }

        if ( c > 0 )

            {

            TChar drive( c );

            TReal free = iSystemInfoMisc->DriveFree( drive );

            DOUBLE_TO_NPVARIANT( free, *result );

            ret = true;

            }

        }

    return ret;

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::HasProperty

//

// ----------------------------------------------------------------------------

bool CSystemInfoPlugin::HasProperty (NPIdentifier name)

    {

    for ( TInt i= 0; i < EIdLast; i++ )

        {

        if ( name == iSystemInfoPluginIdentifiers[i] )

            {

            return !IsMethod[i];

            }

        }

    return false;

    }

// ----------------------------------------------------------------------------

// CSystemInfoPlugin::GetProperty

//

// ----------------------------------------------------------------------------

bool CSystemInfoPlugin::GetProperty( NPIdentifier name, NPVariant *variant )

    {

    // default variant value maps to javascript undefined

    VOID_TO_NPVARIANT( *variant );

    if ( name == iSystemInfoPluginIdentifiers[EIdChargeLevel] )

        {

        INT32_TO_NPVARIANT( iPowerObserver->ChargeLevel(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdChargerConnected] )

        {

        INT32_TO_NPVARIANT( iPowerObserver->ChargerConnected(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdSignalBars] )

        {

        INT32_TO_NPVARIANT( iNetworkObserver->SignalBars(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdNetworkRegistrationStatus] )

        {

        INT32_TO_NPVARIANT( iNetworkObserver->RegistrationStatus(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdNetworkName] )

        {

        const TDesC& inBuf = iNetworkObserver->NetworkName();

        HBufC8* outBuf = HBufC8::New( inBuf.Length() + 1 );

        if ( outBuf )

            {

            TPtr8 ptr( outBuf->Des() );

            TInt ret = CnvUtfConverter::ConvertFromUnicodeToUtf8( ptr, inBuf );

            DesToNpvariant(ptr, variant);

            delete outBuf;

            }

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightMinIntensity] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->LightMinIntensity(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightMaxIntensity] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->LightMaxIntensity(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightDefaultIntensity] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->LightDefaultIntensity(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightInfiniteDuration] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->LightInfiniteDuration(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightMaxDuration] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->LightMaxDuration(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightDefaultCycleTime] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->LightDefaultCycleTime(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightTargetPrimaryDisplayAndKeyboard] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->LightTargetPrimaryDisplayAndKeyboard(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLightTargetSystem] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->LightTargetSystem(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdVibraMinIntensity] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->VibraMinIntensity(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdVibraMaxIntensity] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->VibraMaxIntensity(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdVibraMaxDuration] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->VibraMaxDuration(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdVibraSettings] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->VibraSettings(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdTotalRam] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->TotalRam(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdFreeRam] )

        {

        INT32_TO_NPVARIANT( iSystemInfoMisc->FreeRam(), *variant );

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdDriveList] )

        {

        HBufC8* drives = HBufC8::New( KMaxDrives*2 );

        if ( drives )

            {

            TPtr8 ptr( drives->Des() );

            iSystemInfoMisc->DriveList( ptr );

            DesToNpvariant(ptr, variant);

            delete drives;

            }

        }

    else if ( name == iSystemInfoPluginIdentifiers[EIdLanguage] )

        {

        TBuf<64> langCode;

        iSystemInfoMisc->Language( langCode );

        HBufC8* outBuf = HBufC8::New( langCode.Length() + 1 );