/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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:

*

*/

#include <coemain.h>

#include <eikenv.h>

#include <hal.h>

#include "CMIDEnv.h"

#include "CMIDToolkit.h"

#include "CMIDNotify.h"

#include "CMIDKeyTranslator.h"

#include "CMIDToLcduiObserver.h"

#ifdef RD_JAVA_NGA_ENABLED

#include <EGL/egl.h>

#include <GLES/gl.h>

#include <libc/string.h>

#endif // RD_JAVA_NGA_ENABLED

const TUint16 KCharComma = ',';

CMIDEnv::CMIDEnv(CMIDToolkit* aToolkit, const TSize& aSize)

        : iToolkit(aToolkit)

        , iObservers(EGranularity)

        , iCanvasAssumedSize(aSize)

        , iToLcduiObserver(NULL)

#ifdef RD_JAVA_NGA_ENABLED

        , iHardwareStatus(0)

#endif

{

    iCanvasData.iLock.CreateLocal();

}

void CMIDEnv::ConstructL()

{

    iKeyTranslator = new(ELeave) CMIDKeyTranslator(*this);

    iKeyTranslator->ConstructL();

    iToLcduiObserver = new(ELeave) CMIDToLcduiObserver();

    // On a non-full-screen (normal) mode Canvas the background image must be initially shown,

    // if the value of the Nokia-UI-Enhancement attribute is "CanvasHasBackground". The

    // attribute may be placed in the JAD or the manifest.

    iCanvasData.iHasBackground = MidletAttributeContainsVal(

                                     LcduiMidletAttributes::KAttribUIEnhancement,

                                     LcduiMidletAttributeValues::KUIEnhCanvasBackground);

#ifdef RD_JAVA_NGA_ENABLED

    InitHardwareStatusL();

#endif // RD_JAVA_NGA_ENABLED

}

CMIDEnv::~CMIDEnv()

{

    if (iToLcduiObserver)

    {

        delete iToLcduiObserver;

        iToLcduiObserver = NULL;

    }

    delete iKeyTranslator;

    iObservers.Close();

    iCanvasData.iLock.Close();

}

void CMIDEnv::SetUtils(MMIDUtils* aUtils)

{

    iKeyTranslator->SetUtils(aUtils);

}

TPtrC CMIDEnv::MidletName() const

{

    return iToolkit->MidletName();

}

TUid CMIDEnv::MidletUid() const

{

    return iToolkit->MidletUid();

}

TPtrC CMIDEnv::MidletHome() const

{

    return iToolkit->MidletHome();

}

#ifdef RD_SCALABLE_UI_V2

TUid CMIDEnv::MidletSuiteUid()

{

    if (!iMidletSuiteUid.iUid)

    {

        //Midlet suite uid is located inside brackets in the midlet home path.

        const TChar KUidStart = '[';

        const TChar KUidEnd = ']';

        const TPtrC midletHome = MidletHome();

        //Finding start and end positions

        TInt startPos = midletHome.Locate(KUidStart) + 1;

        TInt endPos = midletHome.LocateReverse(KUidEnd);

        if (startPos != KErrNotFound && endPos != KErrNotFound &&

                startPos < endPos && endPos <= midletHome.Length())

        {

            //Creating new pointer descriptor representing the midlet suite uid

            const TPtrC uidDesc = midletHome.Mid(startPos, endPos - startPos);

            if (uidDesc.Length())

            {

                //Creating unsigned integer out of the hex string.

                TUint uint;

                TLex lexer(uidDesc);

                TInt err = lexer.Val(uint, EHex);

                if (err == KErrNone)

                {

                    iMidletSuiteUid = TUid::Uid(uint);

                }

                else

                {

                    iMidletSuiteUid = TUid::Uid(KNullUidValue);

                }

            }

            else

            {

                iMidletSuiteUid = TUid::Uid(KNullUidValue);

            }

        }

        else

        {

            iMidletSuiteUid = TUid::Uid(KNullUidValue);

        }

    }

    return iMidletSuiteUid;

}

#endif // RD_SCALABLE_UI_V2

TBool CMIDEnv::PostJavaEvent

(

    MMIDComponent& aSource,

    TSourceType aSourceType,

    TEventType  aEventType,

    TInt        aEventData,

    TInt        aEventData1,

    TInt        aEventData2

)

{

#ifdef TRACE_EVENTS

    RDebug::Print(_L("CMIDEnv::PostJavaEvent(%x,%d,%d,%d,%d,%d)"),

                  aSource,

                  aSourceType,

                  aEventType,

                  aEventData,aEventData1, aEventData2);

#endif

    switch (aSourceType)

    {

    case EItem:

        return iToolkit->PostItemEvent(aSource, aEventType, aEventData, aEventData1, aEventData2);

    case EDisplayable:

        return iToolkit->PostDisplayableEvent(aSource, aEventType, aEventData, aEventData1);

    case ECanvasGraphicsItemPainterEvent:

        return iToolkit->PostCanvasGraphicsItemPainterEvent(aSource, aEventType, aEventData, aEventData1);

    default:

        ASSERT(EFalse);

    }

    return EFalse;

}

TBool CMIDEnv::PostJavaEvent(MMIDComponent& aSource,TSourceType aSourceType,TEventType aEventType,TInt aEventData)

{

    return PostJavaEvent(aSource, aSourceType, aEventType, aEventData, 0, 0);

}

TBool CMIDEnv::PostJavaEvent(MMIDComponent& aSource,TSourceType aSourceType,TInt aEventData)

{

    return PostJavaEvent(aSource, aSourceType, ENoType, aEventData, 0, 0);

}

TBool CMIDEnv::PostMidletEvent(TEventType aEventType)

{

    return iToolkit->PostDisplayEvent(aEventType);

}

MMIDNotifyEvent* CMIDEnv::NewNotifyL(MMIDComponent& aSource)

{

    return new(ELeave) CMIDNotifyEvent(iToolkit->ComponentPeer(aSource));

}

TBool   CMIDEnv::PostJavaNotify(MMIDNotifyEvent* aNotifyEvent)

{

    CMIDNotifyEvent* notify = static_cast<CMIDNotifyEvent*>(aNotifyEvent);

    return iToolkit->PostEvent(notify, CJavaEventBase::ENotifyPriority);

}

TBool CMIDEnv::TranslateKeyL(TMIDKeyEvent& aEvent, const TKeyEvent& aWsEvent, TEventCode aType)

{

    return iKeyTranslator->TranslateL(aEvent, aWsEvent, aType);

}

TBool CMIDEnv::PostKeyEvent(MMIDComponent& aSource, TMIDKeyEvent& aEvent)

{

    return iKeyTranslator->PostKeyEvent(aSource, aEvent);

}

void CMIDEnv::ResetKeys()

{

    iKeyTranslator->Reset();

}

MMIDDisplayable* CMIDEnv::Current()

{

    return iToolkit->Current();

}

/**

 * Set the zoom size which may be queried by Canvas in the

 * plugin. This is a relic from when Canvas was implemented

 * in the framework. Should be deprecated.

 */

void CMIDEnv::SetCanvasZoomSize(const TSize& aSize)

{

    iCanvasZoomSize=aSize;

}

/**

 * Get the zoom size - used by the Canvas in the plugin.

 * Relic from when Canvas was implementd in the framework.

 * Should be deprecated.

 */

TSize CMIDEnv::CanvasZoomSize()

{

    return iCanvasZoomSize;

}

TSize CMIDEnv::CanvasAssumedSize()

{

    return iCanvasAssumedSize;

}

TInt CMIDEnv::NumColors()

{

    TDisplayMode mode = DisplayMode();

    return TDisplayModeUtils::NumDisplayModeColors(mode);

}

TDisplayMode CMIDEnv::DisplayMode()

{

    MMIDGraphicsFactory& factory = iToolkit->GraphicsFactory();

    return factory.DisplayMode();

}

void CMIDEnv::AddObserverL(MMIDEnvObserver& aObserver)

{

    ASSERT(iObservers.Find(&aObserver) == KErrNotFound);

    //

    User::LeaveIfError(iObservers.Append(&aObserver));

}

void CMIDEnv::RemoveObserver(MMIDEnvObserver& aObserver)

{

    TInt index = iObservers.Find(&aObserver);

    if (index != KErrNotFound)

    {

        iObservers.Remove(index);

    }

}

void CMIDEnv::HandleSwitchOnL(TBool aSwitchOn)

{

    for (TInt i = iObservers.Count(); i--;)

        iObservers[i]->HandleSwitchOnL(aSwitchOn);

}

void CMIDEnv::HandleForegroundL(TBool aForeground)

{

    for (TInt i = iObservers.Count(); i--;)

    {

        iObservers[i]->HandleForegroundL(aForeground);

    }

    if (aForeground && iToolkit && iToolkit->Utils())

    {

        iToolkit->Utils()->HandleForegroundL(aForeground);

    }

}

void CMIDEnv::HandleResourceChangeL(TInt aType)

{

    for (TInt i = iObservers.Count(); i--;)

    {

        iObservers[i]->HandleResourceChangeL(aType);

    }

    if (iToolkit && iToolkit->Utils())

    {

        iToolkit->Utils()->HandleResourceChangedL();

    }

}

TInt CMIDEnv::MidletAttribute(const TDesC& aAttributeName, TPtrC& aAttributeValue)

{

    return iToolkit->MidletAttribute(aAttributeName,aAttributeValue);

}

TBool CMIDEnv::MidletAttributeIsSetToVal(const TDesC& aAttributeName,

        const TDesC& aAttributeValue)

{

    TPtrC attributeValue;

    if (MidletAttribute(aAttributeName, attributeValue) == KErrNone &&

            attributeValue.CompareF(aAttributeValue) == 0)

    {

        return ETrue;

    }

    else

    {

        return EFalse;

    }

}

TBool CMIDEnv::MidletAttributeContainsVal(const TDesC& aAttributeName,

        const TDesC& aAttributeValue)

{

    TPtrC attributeValue;

    if (MidletAttribute(aAttributeName, attributeValue) == KErrNone)

    {

        TInt startIdx = attributeValue.FindF(aAttributeValue);

        if (startIdx != KErrNotFound)

        {

            if (aAttributeName.FindF(LcduiMidletAttributes::KAttribUIEnhancement) == KErrNotFound)

            {

                // If there is a preceding character before the value substring, it must be a comma

                if (startIdx == 0 || attributeValue[ startIdx - 1 ] == KCharComma)

                {

                    // Check what comes after the found value substring.

                    TInt endIdx = startIdx + aAttributeValue.Length();

                    if (endIdx < attributeValue.Length())

                    {

                        // only comma is ok

                        if (attributeValue[ endIdx ] == KCharComma)

                        {

                            return ETrue;

                        }

                    }

                }

                else // the found substring was right at the end of attributeValue string

                {

                    return ETrue;

                }

            }

            else // it is "Nokia-UI-Enhancement" - it is enough just to identify the substring in list of values

            {

                return ETrue;

            }

        }

    }

    return EFalse;

}

void CMIDEnv::SetCanvasAssumedSize(const TSize& aSize)

{

    iCanvasAssumedSize = aSize;

}

CFbsBitmap* CMIDEnv::ReserveCanvasFrameBufferL(MMIDCanvas& aCanvas, const TSize& aSz)

{

    CMIDEnv::TMutexAutoLock lock(&iCanvasData.iLock);

    if (!aCanvas.IsGameCanvas())

    {

        if (!iCanvasData.iFrameBuffer)

        {

            iCanvasData.iFrameBuffer = CreateCanvasFrameBufferL(aCanvas, ETrue, aSz);

        }

        iCanvasData.iRefCount++;

        return iCanvasData.iFrameBuffer;

    }

    return CreateCanvasFrameBufferL(aCanvas, ETrue, aSz);

}

void CMIDEnv::ReleaseCanvasFrameBuffer(MMIDCanvas& aCanvas, CFbsBitmap*& aFrameBuffer)

{

    CMIDEnv::TMutexAutoLock lock(&iCanvasData.iLock);

    if (!aCanvas.IsGameCanvas())

    {

        if (iCanvasData.iFrameBuffer)

        {

            iCanvasData.iRefCount--;

            if (iCanvasData.iRefCount <= 0)

            {

                iCanvasData.Reset();

            }

        }

    }

    else

    {

        delete aFrameBuffer;

        aFrameBuffer = NULL;

    }

}

CFbsBitmap* CMIDEnv::CreateCanvasFrameBufferL(

    MMIDCanvas& /* aCanvas */, TBool aWsBitmap, const TSize& aSz)

{

    CFbsBitmap* bitmap = new(ELeave) CFbsBitmap;

    CleanupStack::PushL(bitmap);

    TInt err = KErrGeneral;

    err = bitmap->CreateHardwareBitmap(aSz, DisplayMode(), MidletUid());

    if (KErrNone != err)

    {

        // Failed to create hardware bitmap. Fall back to normal software only bitmaps

        User::LeaveIfError(bitmap->Create(aSz, DisplayMode()));

    }

    if (!aWsBitmap)

    {

        CleanupStack::Pop();

        return bitmap;

    }

    CWsBitmap* wsBitmap =

        new(ELeave) CWsBitmap(CCoeEnv::Static()->WsSession());

    err = wsBitmap->Duplicate(bitmap->Handle());

    if (KErrNone != err)

    {

        delete wsBitmap;

        User::Leave(err);

    }

    CleanupStack::PopAndDestroy(bitmap);

    return wsBitmap;

}

TBool CMIDEnv::CanvasHasBackground(const MMIDCanvas& /* aCanvas */) const

{

    return iCanvasData.iHasBackground;

}

#ifdef RD_JAVA_NGA_ENABLED

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

//

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

//

TBool CMIDEnv::IsHardwareAcceleratedL(MMIDEnv::THardwareType aHardwareType)

{

    ASSERT(iHardwareStatus);

    return (iHardwareStatus & aHardwareType);

}

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

// Checks from OpenGL ES API, if it is HW accelerated

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

//

TInt CMIDEnv::InitHardwareStatusL()

{

    iHardwareStatus = 1;

    EGLDisplay eglDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY);

    eglInitialize(eglDisplay, NULL, NULL);

    EGLConfig config;

    EGLint numOfConfigs = 0;

    // Choose suitable display config

    const EGLint attribs[] =

    {

        EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,

        EGL_BUFFER_SIZE, 32,

        EGL_DEPTH_SIZE, 16,

        EGL_NONE

    };

    eglChooseConfig(eglDisplay, attribs, &config, 1, &numOfConfigs);

    // Create a surface

    const EGLint pBuffAttribs[] =

    {

        EGL_WIDTH, 1,

        EGL_HEIGHT, 1,

        EGL_NONE

    };

    EGLSurface surface = eglCreatePbufferSurface(eglDisplay, config, pBuffAttribs);

    // Create a context into this thread.

    EGLContext context = eglCreateContext(eglDisplay, config, EGL_NO_CONTEXT, NULL);

    // Try to bind surface to context

    if (context != EGL_NO_CONTEXT && surface != EGL_NO_SURFACE &&

            eglMakeCurrent(eglDisplay, surface, surface, context))

    {

        if (strstr((const char *)glGetString(GL_RENDERER), "HW"))

        {

            iHardwareStatus |= MMIDEnv::EHardware3D;

        }

        eglMakeCurrent(eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);

    }

    if (context != EGL_NO_CONTEXT)

    {

        eglDestroyContext(eglDisplay, context);

    }

    if (surface != EGL_NO_SURFACE)

    {

        eglDestroySurface(eglDisplay, surface);

    }

    eglTerminate(eglDisplay);

    return iHardwareStatus;

}

#endif // RD_JAVA_NGA_ENABLED

void CMIDEnv::MappingDataForKey(TKeyEvent& aEvent, TEventCode aType)

{

    iToolkit->Utils()->MappingDataForKey(aEvent, aType);

}

void CMIDEnv::SetLastKeyEvent(const TKeyEvent& aEvent)

{

    iToolkit->Utils()->SetLastKeyEvent(aEvent);

}

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

// CMIDEnv::ToLcduiObserver