/*

* Copyright (c) 2003 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:  SVGT Plugin Implementation source file

 *

*/

#include <e32std.h>

#include <eikenv.h>

#include <barsread.h>

#include <fbs.h>

#include <gdi.h>

#include <f32file.h>

#include <featmgr.h>

#include <eikappui.h>

#include <SVGEngineInterfaceImpl.h>

#include "Svgtplugin.h"

#include "VolumeKeyListener.h"

#include "RepositoryVolumeListener.h"

_LIT(KWidth, "width");

_LIT(KHeight, "height");

CSvgtPlugin* CSvgtPlugin::NewL(NPP anInstance)

	{

    CSvgtPlugin *self = new (ELeave) CSvgtPlugin;

	CleanupStack::PushL( self );

	self->ConstructL(anInstance);

	CleanupStack::Pop();

	return self;

	}

CSvgtPlugin::~CSvgtPlugin()

	{

	if ( iControl )

		{

    	delete iControl;

    	iControl=NULL;

    	}

	if ( iSvgModule )

		{

		iSvgModule->Stop();

		delete iSvgModule;

		iSvgModule = NULL;

		}

	if ( iRenderBuffer )

		{

		delete iRenderBuffer;

		iRenderBuffer = NULL;

		}

 	iImageUrlInfoList.ResetAndDestroy();        

	iImageUrlInfoList.Close();

	if(iKeyListener)

	    {

	    delete iKeyListener;

	    iKeyListener = NULL;

	    }

	if(iRepositoryListener)

	    {

	    delete iRepositoryListener;

	    iRepositoryListener = NULL;

	    }

	}

void CSvgtPlugin::PrepareToExitL()

	{

	if (iPluginAdapter)

		iPluginAdapter->PluginFinishedL();

	}

void CSvgtPlugin::ConstructL(NPP anInstance)

	{

  	iInstance=anInstance;

  	iRenderBuffer = new ( ELeave ) CFbsBitmap();

	iObjectWidth = 0;

	iObjectHeight = 0;

	// By default obj height is not in percentage

	iObjHeightInPercentage = EFalse; 

	// By default obj width is not in percentage

	iObjWidthInPercentage = EFalse; 

	iExpectedDefaultSize = EFalse;

	//While parsing are object width height are specified or not

	iObjectWidthSpecified = EFalse;

	iObjectHeightSpecified = EFalse;

	TFontSpec lFontSpec;

	iSvgModule = CSvgEngineInterfaceImpl::NewL( iRenderBuffer, this, lFontSpec );

  	// Clear background white

	iSvgModule->SetBackgroundColor(0xffffffff);

    iSvgModule->AddHyperlinkListener( this );

    iAdjusted = EFalse;

    if (FeatureManager::FeatureSupported(KFeatureIdSideVolumeKeys))

        {

        User::InfoPrint(_L("Volume Key supported"));

        iKeyListener = CVolumeKeyListener::NewL(this);

   	    }

   	else

   	    {

   	    User::InfoPrint(_L("Key not supported"));

   	    iRepositoryListener = CRepositoryVolumeListener::NewL(this);

   	    }

	}

void CSvgtPlugin::SetWindowL(const NPWindow *aWindow,const TRect& aRect)

    {

    iCurrentWindow.x = aWindow->x;

    iCurrentWindow.y = aWindow->y;

    iCurrentWindow.window = aWindow->window;

    iCurrentWindow.clipRect = aWindow->clipRect;

    iCurrentWindow.type = aWindow->type;

    iCurrentWindow.width = aWindow->width;

    iCurrentWindow.height = aWindow->height;

    iPluginAdapter = static_cast<MPluginAdapter*>(aWindow->window);

    iParentControl = iPluginAdapter->GetParentControl();

    if (iControl == NULL)

        {

        iControl = new (ELeave) CSvgtPluginControl;

        iControl->ConstructL(this,iParentControl);

        iPluginAdapter->PluginConstructedL(iControl);

        iPluginAdapter->SetPluginNotifier(iControl);

        }

	if ( !iControl || !iSvgModule || aRect.Width() <= 0 || aRect.Height() <= 0 )

    	{

		  return;

		  }

	iSetWindowCalled = ETrue;

	    iControl->SetRect(aRect);

	if ( iRenderWidth != aRect.Width() ||

	     iRenderHeight != aRect.Height() )

		{

		iRenderWidth = aRect.Width();

		iRenderHeight = aRect.Height();

		// Browser initially sends width/height as zero 

		// if width/height are not specified

		// Later if svg is available to us we call resize after adjustDimention

		// But if we dont do adjustDimention quick enough

		// Browser sends default width/Height as 300x150

		// To Ensure that we are setting the object width/height and 

		// browser is not setting default width/height ahead of us doing resize

		// In adjustDimention if width/height are specified at the browser level

		// iAdjusted is set to false, the second condition is to ensure that

		// if the browser does a resize at a later point it should be allowed

		if(iAdjusted || (iObjectWidthSpecified && iObjectHeightSpecified))

		    {

		    iObjectWidth  = iRenderWidth;

            iObjectHeight = iRenderHeight;

		    }

		iSvgModule->Pause(); //fix for CGSR-7CN7T7

		User::LeaveIfError( iRenderBuffer->Create(

							TSize( iRenderWidth, iRenderHeight ), EColor64K ) );

		iSvgModule->SetFrameBuffer( iRenderBuffer );

		iSvgModule->Resume(); // fix for CGSR-7CN7T7

		}

		if ( iExpectedDefaultSize )

			{

			iExpectedDefaultSize = EFalse;

            AdjustDimention(ETrue,ETrue);

			}

    	if(iControlSize != aRect.Size())

    		{

            iRenderWidth = aRect.Width();

            iRenderHeight = aRect.Height();

	    	CFbsBitmap * lTempRenderBuffer = new (ELeave) CFbsBitmap();

            CleanupStack::PushL(lTempRenderBuffer);

            User::LeaveIfError( lTempRenderBuffer->Create( TSize(iRenderWidth,iRenderHeight), EColor64K ));

			iSvgModule->SetFrameBuffer(lTempRenderBuffer);

			delete	iRenderBuffer;

			iRenderBuffer = lTempRenderBuffer;

			CleanupStack::Pop(lTempRenderBuffer);

			lTempRenderBuffer = NULL;

			iControlSize = aRect.Size();

			iControl->iContentDimension = iSvgModule->ContentDimensions();

			}

        // For autoloading feature.

            if ( iControl->IsAsFileCalled() && iControl->GetFilename().Length() > 0 &&

                 !iStartCalled )

            {

                    TBool widthInPercentage;

                    TBool heightInPercentage;

	                iControl->iContentDimension = iSvgModule->ContentDimensionsInPercentage();

	                if(iControl->iContentDimension.iWidth == -1 )

	                {

	                    widthInPercentage = EFalse;

	                    if(iSvgModule->SvgDocument())

	                    {

	                        iControl->iContentDimension.iWidth = iSvgModule->GetViewportWidth(iSvgModule->SvgDocument());    

	                    }

	                    else

	                    {

	                        return;

	                    }

	                }

	                else 

                    {

	                    widthInPercentage = ETrue;

                    }

                    if(iControl->iContentDimension.iHeight == -1)

                    {

                        heightInPercentage = EFalse;

                        if(iSvgModule->SvgDocument())

	                    {

	                        iControl->iContentDimension.iHeight = iSvgModule->GetViewportHeight(iSvgModule->SvgDocument());

	                    }

	                    else

	                    {

	                        return;

	                    }

                    }

                    else

                    {

                        heightInPercentage = ETrue;

                    }

                    // After loading the content, the width & height will be visible to plugin.

                    // It is time to adjust the size if needed.

                    if ( AdjustDimention(widthInPercentage,heightInPercentage) )

                        {

                        // dimention change is needed so return and notify Browser.

                        return;

                        }

                    iSvgModule->Start();

                    		iStartCalled = ETrue;

            } 

	}

CSvgtPluginControl* CSvgtPlugin::Control()

    {

    return iControl;

    }

NPP CSvgtPlugin::Instance()

    {

    return iInstance;

    }

void  CSvgtPlugin::GetSizeOfRenderBuffer(TSize& aSize)

	{

	if ( iRenderBuffer )

		{

		aSize = iRenderBuffer->SizeInPixels();

		}

	else

		{

		aSize = TSize ( 0, 0 );

		}

	}

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

//					implements MSvgRequestObserver

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

void CSvgtPlugin::UpdateScreen()

	{

	iControl->DrawNow();

	}

TBool CSvgtPlugin::ScriptCall( const TDesC& /*aScript*/,

                                  CSvgElementImpl* /*aCallerElement*/ )

	{

    return EFalse;

	}

TBool CSvgtPlugin::LinkEntered( const TDesC& /* aUri */ )

{

    // update mouse pointer here

    return ETrue;

}

TBool CSvgtPlugin::LinkExited( const TDesC& /* aUri */ )

{

    // update mouse pointer here

    return ETrue;

}

TBool CSvgtPlugin::LinkActivated( const TDesC& aUrl )

	{

	CSvgtPluginEcomMain* lSvgtPluginEcomMain = (CSvgtPluginEcomMain*) Dll :: Tls ();

	NPNetscapeFuncs* lNetscapeFuncs = lSvgtPluginEcomMain->Funcs();

	if(lNetscapeFuncs)

		{

        TPtrC lTarget('\0',0);

        lTarget.Set(_L("_parent"));

        lNetscapeFuncs->geturl(iInstance,aUrl,&lTarget);

   		}

	return ETrue;

	}

void CSvgtPlugin::VolumeChanged(TInt aNewValue)

    {

   	RDebug::Print(_L("Volume level: %d"), aNewValue);    

    aNewValue *= 10; //to make the volume in percentage

    iSvgModule->SetAudioVolume( aNewValue );

    }

TInt CSvgtPlugin::FetchImage(const TDesC&  aUri,  RFs& /*aSession*/, RFile& /*aFileHandle*/ )

{

    TRAPD(err,FetchImageL(aUri));

    return err;

}

void CSvgtPlugin::FetchImageL(const TDesC&  aUri)    

    {

        TInt    lCount     = iImageUrlInfoList.Count();

        HBufC*  lListItem  = NULL;

        HBufC*  lUrl       = NULL;

        //checks whether the request is already made for same Uri.        

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

        {

            lListItem = HBufC::NewLC(iImageUrlInfoList[i]->Length());

            lUrl      = aUri.AllocLC();

            *lListItem = *iImageUrlInfoList[i];

            // Convert the List Item to Lower case

            TPtr lListItemPtr = lListItem->Des();

            lListItemPtr.LowerCase();

            // Convert the Url to Lower case

            TPtr lUrlPtr = lUrl->Des();

            lUrlPtr.LowerCase();

            if( lListItemPtr.Compare(lUrlPtr) == 0 )       	

            {

                CleanupStack::PopAndDestroy(2);

                lListItem = NULL;

                lUrl      = NULL;

               	// Same Url is already requested in the past, no need to continue.

              	User::Leave(KErrAlreadyExists); // Indicates the download is pending

            }

            CleanupStack::PopAndDestroy(2);

            lListItem = NULL;

            lUrl      = NULL;

        }

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

		// Request file from browser

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

		CSvgtPluginEcomMain* lSvgtPluginEcomMain = (CSvgtPluginEcomMain*) Dll :: Tls ();

		NPNetscapeFuncs* lNetscapeFuncs = lSvgtPluginEcomMain->Funcs();

		if(lNetscapeFuncs)

		{

			TPtrC lTarget('\0',0);

			lUrl = aUri.AllocL();

			// Current count is used as a context data.

			void* contextptr = (void*)(lCount);   

			NPError error = lNetscapeFuncs->geturlnotify(iInstance,aUri,NULL,contextptr);		

			// Add the Url and RequestID to the List

			iImageUrlInfoList.Append(lUrl);

			if ( error != 0 )

    		{

                #ifdef _DEBUG

                		lNetscapeFuncs->status(iInstance,_L("Image failed"));

                #endif

                User::LeaveIfError(error);

    		}

			#ifdef _DEBUG

            lNetscapeFuncs->status(iInstance,_L("Downloading Image"));

            #endif

		}

        User::Leave(KRequestPending); // Indicate the download is pending

    }

TInt CSvgtPlugin::FetchFont( const TDesC& /* aUri */,  RFs& /* aSession */, RFile&  /* aFileHandle */)

    {

	// Fix for ANAE-775B7E. There is a limitaiton. For rendering text with 

	// external font synchronous fetching of the file is needed. But the 

	// external font file is fetched asynchronously by browser when we say 

	// geturlnotify(). There is no API to pass the font data after fetching

	// asynchronously. Hence the code here is removed by returning an error.

	return KErrNotFound;

    }

TBool CSvgtPlugin::LinkActivatedWithShow(const TDesC& aUri,const TDesC& /*aShow*/)

	{

	CSvgtPluginEcomMain* lSvgtPluginEcomMain = (CSvgtPluginEcomMain*) Dll :: Tls ();

	NPNetscapeFuncs* lNetscapeFuncs = lSvgtPluginEcomMain->Funcs();

	if(lNetscapeFuncs)

		{

        TPtrC lTarget('\0',0);

        lTarget.Set(_L("_parent"));

		lNetscapeFuncs->geturl(iInstance,aUri,&lTarget);

		}

	return ETrue;

	}

void CSvgtPlugin::GetSmilFitValue(TDes16 &aSmilValue)

    {

    aSmilValue.Copy(_L("meet"));

    }

void CSvgtPlugin::UpdatePresentation(const TInt32&  aNoOfAnimation)

	{

 	if (iTotalNumerOfAnimation < 0)

  		{

 		if (aNoOfAnimation != 0)

			{

			iStaticContent = EFalse;

			iTotalNumerOfAnimation = aNoOfAnimation;

			}

		else

			{

			iStaticContent = ETrue;

			}

		}

 	else

		{

		iTotalNumerOfAnimation--;

		}

	}

void CSvgtPlugin::GetViewPort(TInt /*getWidth*/, TInt /*getHeight*/, TBool /*isWidthInPer*/, TBool /*isHeightInPer*/, TInt &setWidth, TInt &setHeight)

{

    setWidth = iRenderWidth;    

    setHeight = iRenderHeight;    

    iViewPortWidth = setWidth;

    iViewPortHeight = setHeight;

}

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

// This function extracts attributes from the list that is passed from Browser.

// Use to check if width & height are defined in XHTML tag

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

//

NPError CSvgtPlugin::SvgPluginNew(NPMIMEType /*pluginType*/, NPP instance,

    uint16 /*mode*/, CDesC16Array* argn, CDesC16Array* argv, NPSavedData* )

    {

    if (instance->pdata != this)

        {

        return NPERR_INVALID_INSTANCE_ERROR;

        }

    for (TInt i = 0; i < argn->Count(); i++)

        {

        TPtrC16 namePtr((*argn)[i]);

        TPtrC16 valPtr((*argv)[i]);

        if (KWidth().FindF(namePtr) == 0)

            {

            TLex lString( valPtr );

            lString.SkipSpace();

            TInt result = lString.Val(iRenderWidth);

            // Check if object width was specified as

            // percentage value.

            if ( valPtr.Locate( '%' ) != KErrNotFound )

                {

                // Do not store the value, browser takes

                // care of computing the width

            	iObjWidthInPercentage = ETrue; 

                }

            if (( result != KErrNone) || (iRenderWidth < 0))

                {

                iObjectWidth = 0;

                }

            else

            	{

	            iObjectWidth = iRenderWidth;

            	}

            iObjectWidthSpecified = ETrue;

            }

        else if (KHeight().FindF(namePtr) == 0)

            {

            TLex lString( valPtr );

            lString.SkipSpace();

            TInt result = lString.Val(iRenderHeight);

            // Check if object height was specified as a

            // percentage value.